Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1 | //===------- CGObjCMac.cpp - Interface to Apple Objective-C Runtime -------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This provides Objective-C code generation targetting the Apple runtime. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "CGObjCRuntime.h" |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 15 | |
Daniel Dunbar | 198bcb4 | 2010-03-31 01:09:11 +0000 | [diff] [blame] | 16 | #include "CGRecordLayout.h" |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 17 | #include "CodeGenModule.h" |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 18 | #include "CodeGenFunction.h" |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 19 | #include "CGException.h" |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 20 | #include "clang/AST/ASTContext.h" |
Daniel Dunbar | e91593e | 2008-08-11 04:54:23 +0000 | [diff] [blame] | 21 | #include "clang/AST/Decl.h" |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 22 | #include "clang/AST/DeclObjC.h" |
Anders Carlsson | 19cc4ab | 2009-07-18 19:43:29 +0000 | [diff] [blame] | 23 | #include "clang/AST/RecordLayout.h" |
Chris Lattner | 16f0049 | 2009-04-26 01:32:48 +0000 | [diff] [blame] | 24 | #include "clang/AST/StmtObjC.h" |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 25 | #include "clang/Basic/LangOptions.h" |
Chandler Carruth | 06057ce | 2010-06-15 23:19:56 +0000 | [diff] [blame] | 26 | #include "clang/Frontend/CodeGenOptions.h" |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 27 | |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 28 | #include "llvm/InlineAsm.h" |
| 29 | #include "llvm/IntrinsicInst.h" |
Owen Anderson | 6924382 | 2009-07-13 04:10:07 +0000 | [diff] [blame] | 30 | #include "llvm/LLVMContext.h" |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 31 | #include "llvm/Module.h" |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 32 | #include "llvm/ADT/DenseSet.h" |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 33 | #include "llvm/ADT/SetVector.h" |
| 34 | #include "llvm/ADT/SmallString.h" |
Fariborz Jahanian | 191dcd7 | 2009-12-12 21:26:21 +0000 | [diff] [blame] | 35 | #include "llvm/ADT/SmallPtrSet.h" |
John McCall | 8e3f861 | 2010-07-13 22:12:14 +0000 | [diff] [blame] | 36 | #include "llvm/Support/CallSite.h" |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 37 | #include "llvm/Support/raw_ostream.h" |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 38 | #include "llvm/Target/TargetData.h" |
Torok Edwin | f42e4a6 | 2009-08-24 13:25:12 +0000 | [diff] [blame] | 39 | #include <cstdio> |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 40 | |
| 41 | using namespace clang; |
Daniel Dunbar | 46f45b9 | 2008-09-09 01:06:48 +0000 | [diff] [blame] | 42 | using namespace CodeGen; |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 43 | |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 44 | // Common CGObjCRuntime functions, these don't belong here, but they |
| 45 | // don't belong in CGObjCRuntime either so we will live with it for |
| 46 | // now. |
| 47 | |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 48 | static uint64_t LookupFieldBitOffset(CodeGen::CodeGenModule &CGM, |
| 49 | const ObjCInterfaceDecl *OID, |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 50 | const ObjCImplementationDecl *ID, |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 51 | const ObjCIvarDecl *Ivar) { |
Daniel Dunbar | e83be12 | 2010-04-02 21:14:02 +0000 | [diff] [blame] | 52 | const ObjCInterfaceDecl *Container = Ivar->getContainingInterface(); |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 53 | |
Daniel Dunbar | 61ac1d2 | 2010-04-02 22:29:40 +0000 | [diff] [blame] | 54 | // FIXME: We should eliminate the need to have ObjCImplementationDecl passed |
| 55 | // in here; it should never be necessary because that should be the lexical |
| 56 | // decl context for the ivar. |
Daniel Dunbar | 3a2c80f | 2010-04-02 15:43:29 +0000 | [diff] [blame] | 57 | |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 58 | // If we know have an implementation (and the ivar is in it) then |
| 59 | // look up in the implementation layout. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 60 | const ASTRecordLayout *RL; |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 61 | if (ID && ID->getClassInterface() == Container) |
| 62 | RL = &CGM.getContext().getASTObjCImplementationLayout(ID); |
| 63 | else |
| 64 | RL = &CGM.getContext().getASTObjCInterfaceLayout(Container); |
Daniel Dunbar | e83be12 | 2010-04-02 21:14:02 +0000 | [diff] [blame] | 65 | |
| 66 | // Compute field index. |
| 67 | // |
| 68 | // FIXME: The index here is closely tied to how ASTContext::getObjCLayout is |
| 69 | // implemented. This should be fixed to get the information from the layout |
| 70 | // directly. |
| 71 | unsigned Index = 0; |
| 72 | llvm::SmallVector<ObjCIvarDecl*, 16> Ivars; |
| 73 | CGM.getContext().ShallowCollectObjCIvars(Container, Ivars); |
| 74 | for (unsigned k = 0, e = Ivars.size(); k != e; ++k) { |
| 75 | if (Ivar == Ivars[k]) |
| 76 | break; |
| 77 | ++Index; |
| 78 | } |
| 79 | assert(Index != Ivars.size() && "Ivar is not inside container!"); |
| 80 | |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 81 | return RL->getFieldOffset(Index); |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | uint64_t CGObjCRuntime::ComputeIvarBaseOffset(CodeGen::CodeGenModule &CGM, |
| 85 | const ObjCInterfaceDecl *OID, |
| 86 | const ObjCIvarDecl *Ivar) { |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 87 | return LookupFieldBitOffset(CGM, OID, 0, Ivar) / 8; |
| 88 | } |
| 89 | |
| 90 | uint64_t CGObjCRuntime::ComputeIvarBaseOffset(CodeGen::CodeGenModule &CGM, |
| 91 | const ObjCImplementationDecl *OID, |
| 92 | const ObjCIvarDecl *Ivar) { |
| 93 | return LookupFieldBitOffset(CGM, OID->getClassInterface(), OID, Ivar) / 8; |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | LValue CGObjCRuntime::EmitValueForIvarAtOffset(CodeGen::CodeGenFunction &CGF, |
| 97 | const ObjCInterfaceDecl *OID, |
| 98 | llvm::Value *BaseValue, |
| 99 | const ObjCIvarDecl *Ivar, |
| 100 | unsigned CVRQualifiers, |
| 101 | llvm::Value *Offset) { |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 102 | // Compute (type*) ( (char *) BaseValue + Offset) |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 103 | const llvm::Type *I8Ptr = llvm::Type::getInt8PtrTy(CGF.getLLVMContext()); |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 104 | QualType IvarTy = Ivar->getType(); |
| 105 | const llvm::Type *LTy = CGF.CGM.getTypes().ConvertTypeForMem(IvarTy); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 106 | llvm::Value *V = CGF.Builder.CreateBitCast(BaseValue, I8Ptr); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 107 | V = CGF.Builder.CreateGEP(V, Offset, "add.ptr"); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 108 | V = CGF.Builder.CreateBitCast(V, llvm::PointerType::getUnqual(LTy)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 109 | |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 110 | Qualifiers Quals = CGF.MakeQualifiers(IvarTy); |
| 111 | Quals.addCVRQualifiers(CVRQualifiers); |
| 112 | |
Daniel Dunbar | 56229f5 | 2010-04-05 16:20:33 +0000 | [diff] [blame] | 113 | if (!Ivar->isBitField()) |
| 114 | return LValue::MakeAddr(V, Quals); |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 115 | |
Daniel Dunbar | 56229f5 | 2010-04-05 16:20:33 +0000 | [diff] [blame] | 116 | // We need to compute the bit offset for the bit-field, the offset is to the |
| 117 | // byte. Note, there is a subtle invariant here: we can only call this routine |
| 118 | // on non-synthesized ivars but we may be called for synthesized ivars. |
| 119 | // However, a synthesized ivar can never be a bit-field, so this is safe. |
| 120 | uint64_t BitOffset = LookupFieldBitOffset(CGF.CGM, OID, 0, Ivar) % 8; |
| 121 | uint64_t BitFieldSize = |
| 122 | Ivar->getBitWidth()->EvaluateAsInt(CGF.getContext()).getZExtValue(); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 123 | |
Daniel Dunbar | f0fe5bc | 2010-04-05 21:36:35 +0000 | [diff] [blame] | 124 | // Allocate a new CGBitFieldInfo object to describe this access. |
| 125 | // |
| 126 | // FIXME: This is incredibly wasteful, these should be uniqued or part of some |
| 127 | // layout object. However, this is blocked on other cleanups to the |
| 128 | // Objective-C code, so for now we just live with allocating a bunch of these |
| 129 | // objects. |
Daniel Dunbar | f0fe5bc | 2010-04-05 21:36:35 +0000 | [diff] [blame] | 130 | |
Daniel Dunbar | ab970f9 | 2010-04-13 20:58:55 +0000 | [diff] [blame] | 131 | // We always construct a single, possibly unaligned, access for this case. |
Daniel Dunbar | 2df2569 | 2010-04-15 05:09:32 +0000 | [diff] [blame] | 132 | CGBitFieldInfo::AccessInfo AI; |
Daniel Dunbar | ab970f9 | 2010-04-13 20:58:55 +0000 | [diff] [blame] | 133 | AI.FieldIndex = 0; |
| 134 | AI.FieldByteOffset = 0; |
| 135 | AI.FieldBitStart = BitOffset; |
| 136 | AI.AccessWidth = CGF.CGM.getContext().getTypeSize(IvarTy); |
| 137 | AI.AccessAlignment = 0; |
| 138 | AI.TargetBitOffset = 0; |
| 139 | AI.TargetBitWidth = BitFieldSize; |
| 140 | |
Daniel Dunbar | 2df2569 | 2010-04-15 05:09:32 +0000 | [diff] [blame] | 141 | CGBitFieldInfo *Info = |
| 142 | new (CGF.CGM.getContext()) CGBitFieldInfo(BitFieldSize, 1, &AI, |
| 143 | IvarTy->isSignedIntegerType()); |
| 144 | |
Daniel Dunbar | 56229f5 | 2010-04-05 16:20:33 +0000 | [diff] [blame] | 145 | // FIXME: We need to set a very conservative alignment on this, or make sure |
| 146 | // that the runtime is doing the right thing. |
Daniel Dunbar | efbf487 | 2010-04-06 01:07:44 +0000 | [diff] [blame] | 147 | return LValue::MakeBitfield(V, *Info, Quals.getCVRQualifiers()); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 148 | } |
| 149 | |
| 150 | /// |
| 151 | |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 152 | namespace { |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 153 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 154 | typedef std::vector<llvm::Constant*> ConstantVector; |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 155 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 156 | // FIXME: We should find a nicer way to make the labels for metadata, string |
| 157 | // concatenation is lame. |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 158 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 159 | class ObjCCommonTypesHelper { |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 160 | protected: |
| 161 | llvm::LLVMContext &VMContext; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 162 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 163 | private: |
| 164 | llvm::Constant *getMessageSendFn() const { |
| 165 | // id objc_msgSend (id, SEL, ...) |
| 166 | std::vector<const llvm::Type*> Params; |
| 167 | Params.push_back(ObjectPtrTy); |
| 168 | Params.push_back(SelectorPtrTy); |
| 169 | return |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 170 | CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
| 171 | Params, true), |
| 172 | "objc_msgSend"); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 173 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 174 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 175 | llvm::Constant *getMessageSendStretFn() const { |
| 176 | // id objc_msgSend_stret (id, SEL, ...) |
| 177 | std::vector<const llvm::Type*> Params; |
| 178 | Params.push_back(ObjectPtrTy); |
| 179 | Params.push_back(SelectorPtrTy); |
| 180 | return |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 181 | CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 182 | Params, true), |
| 183 | "objc_msgSend_stret"); |
| 184 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 185 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 186 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 187 | llvm::Constant *getMessageSendFpretFn() const { |
| 188 | // FIXME: This should be long double on x86_64? |
| 189 | // [double | long double] objc_msgSend_fpret(id self, SEL op, ...) |
| 190 | std::vector<const llvm::Type*> Params; |
| 191 | Params.push_back(ObjectPtrTy); |
| 192 | Params.push_back(SelectorPtrTy); |
| 193 | return |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 194 | CGM.CreateRuntimeFunction(llvm::FunctionType::get( |
| 195 | llvm::Type::getDoubleTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 196 | Params, |
| 197 | true), |
| 198 | "objc_msgSend_fpret"); |
| 199 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 200 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 201 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 202 | llvm::Constant *getMessageSendSuperFn() const { |
| 203 | // id objc_msgSendSuper(struct objc_super *super, SEL op, ...) |
| 204 | const char *SuperName = "objc_msgSendSuper"; |
| 205 | std::vector<const llvm::Type*> Params; |
| 206 | Params.push_back(SuperPtrTy); |
| 207 | Params.push_back(SelectorPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 208 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 209 | Params, true), |
| 210 | SuperName); |
| 211 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 212 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 213 | llvm::Constant *getMessageSendSuperFn2() const { |
| 214 | // id objc_msgSendSuper2(struct objc_super *super, SEL op, ...) |
| 215 | const char *SuperName = "objc_msgSendSuper2"; |
| 216 | std::vector<const llvm::Type*> Params; |
| 217 | Params.push_back(SuperPtrTy); |
| 218 | Params.push_back(SelectorPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 219 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 220 | Params, true), |
| 221 | SuperName); |
| 222 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 223 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 224 | llvm::Constant *getMessageSendSuperStretFn() const { |
| 225 | // void objc_msgSendSuper_stret(void * stretAddr, struct objc_super *super, |
| 226 | // SEL op, ...) |
| 227 | std::vector<const llvm::Type*> Params; |
| 228 | Params.push_back(Int8PtrTy); |
| 229 | Params.push_back(SuperPtrTy); |
| 230 | Params.push_back(SelectorPtrTy); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 231 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 232 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 233 | Params, true), |
| 234 | "objc_msgSendSuper_stret"); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 235 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 236 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 237 | llvm::Constant *getMessageSendSuperStretFn2() const { |
| 238 | // void objc_msgSendSuper2_stret(void * stretAddr, struct objc_super *super, |
| 239 | // SEL op, ...) |
| 240 | std::vector<const llvm::Type*> Params; |
| 241 | Params.push_back(Int8PtrTy); |
| 242 | Params.push_back(SuperPtrTy); |
| 243 | Params.push_back(SelectorPtrTy); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 244 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 245 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 246 | Params, true), |
| 247 | "objc_msgSendSuper2_stret"); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 248 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 249 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 250 | llvm::Constant *getMessageSendSuperFpretFn() const { |
| 251 | // There is no objc_msgSendSuper_fpret? How can that work? |
| 252 | return getMessageSendSuperFn(); |
| 253 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 254 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 255 | llvm::Constant *getMessageSendSuperFpretFn2() const { |
| 256 | // There is no objc_msgSendSuper_fpret? How can that work? |
| 257 | return getMessageSendSuperFn2(); |
| 258 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 259 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 260 | protected: |
| 261 | CodeGen::CodeGenModule &CGM; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 262 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 263 | public: |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 264 | const llvm::Type *ShortTy, *IntTy, *LongTy, *LongLongTy; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 265 | const llvm::Type *Int8PtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 266 | |
Daniel Dunbar | 2bedbf8 | 2008-08-12 05:28:47 +0000 | [diff] [blame] | 267 | /// ObjectPtrTy - LLVM type for object handles (typeof(id)) |
| 268 | const llvm::Type *ObjectPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 269 | |
Fariborz Jahanian | 6d657c4 | 2008-11-18 20:18:11 +0000 | [diff] [blame] | 270 | /// PtrObjectPtrTy - LLVM type for id * |
| 271 | const llvm::Type *PtrObjectPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 272 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 273 | /// SelectorPtrTy - LLVM type for selector handles (typeof(SEL)) |
Daniel Dunbar | 2bedbf8 | 2008-08-12 05:28:47 +0000 | [diff] [blame] | 274 | const llvm::Type *SelectorPtrTy; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 275 | /// ProtocolPtrTy - LLVM type for external protocol handles |
| 276 | /// (typeof(Protocol)) |
| 277 | const llvm::Type *ExternalProtocolPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 278 | |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 279 | // SuperCTy - clang type for struct objc_super. |
| 280 | QualType SuperCTy; |
| 281 | // SuperPtrCTy - clang type for struct objc_super *. |
| 282 | QualType SuperPtrCTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 283 | |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 284 | /// SuperTy - LLVM type for struct objc_super. |
| 285 | const llvm::StructType *SuperTy; |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 286 | /// SuperPtrTy - LLVM type for struct objc_super *. |
| 287 | const llvm::Type *SuperPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 288 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 289 | /// PropertyTy - LLVM type for struct objc_property (struct _prop_t |
| 290 | /// in GCC parlance). |
| 291 | const llvm::StructType *PropertyTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 292 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 293 | /// PropertyListTy - LLVM type for struct objc_property_list |
| 294 | /// (_prop_list_t in GCC parlance). |
| 295 | const llvm::StructType *PropertyListTy; |
| 296 | /// PropertyListPtrTy - LLVM type for struct objc_property_list*. |
| 297 | const llvm::Type *PropertyListPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 298 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 299 | // MethodTy - LLVM type for struct objc_method. |
| 300 | const llvm::StructType *MethodTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 301 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 302 | /// CacheTy - LLVM type for struct objc_cache. |
| 303 | const llvm::Type *CacheTy; |
| 304 | /// CachePtrTy - LLVM type for struct objc_cache *. |
| 305 | const llvm::Type *CachePtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 306 | |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 307 | llvm::Constant *getGetPropertyFn() { |
| 308 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 309 | ASTContext &Ctx = CGM.getContext(); |
| 310 | // id objc_getProperty (id, SEL, ptrdiff_t, bool) |
John McCall | ead608a | 2010-02-26 00:48:12 +0000 | [diff] [blame] | 311 | llvm::SmallVector<CanQualType,4> Params; |
| 312 | CanQualType IdType = Ctx.getCanonicalParamType(Ctx.getObjCIdType()); |
| 313 | CanQualType SelType = Ctx.getCanonicalParamType(Ctx.getObjCSelType()); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 314 | Params.push_back(IdType); |
| 315 | Params.push_back(SelType); |
| 316 | Params.push_back(Ctx.LongTy); |
| 317 | Params.push_back(Ctx.BoolTy); |
| 318 | const llvm::FunctionType *FTy = |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 319 | Types.GetFunctionType(Types.getFunctionInfo(IdType, Params, |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 320 | FunctionType::ExtInfo()), |
| 321 | false); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 322 | return CGM.CreateRuntimeFunction(FTy, "objc_getProperty"); |
| 323 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 324 | |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 325 | llvm::Constant *getSetPropertyFn() { |
| 326 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 327 | ASTContext &Ctx = CGM.getContext(); |
| 328 | // void objc_setProperty (id, SEL, ptrdiff_t, id, bool, bool) |
John McCall | ead608a | 2010-02-26 00:48:12 +0000 | [diff] [blame] | 329 | llvm::SmallVector<CanQualType,6> Params; |
| 330 | CanQualType IdType = Ctx.getCanonicalParamType(Ctx.getObjCIdType()); |
| 331 | CanQualType SelType = Ctx.getCanonicalParamType(Ctx.getObjCSelType()); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 332 | Params.push_back(IdType); |
| 333 | Params.push_back(SelType); |
| 334 | Params.push_back(Ctx.LongTy); |
| 335 | Params.push_back(IdType); |
| 336 | Params.push_back(Ctx.BoolTy); |
| 337 | Params.push_back(Ctx.BoolTy); |
| 338 | const llvm::FunctionType *FTy = |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 339 | Types.GetFunctionType(Types.getFunctionInfo(Ctx.VoidTy, Params, |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 340 | FunctionType::ExtInfo()), |
| 341 | false); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 342 | return CGM.CreateRuntimeFunction(FTy, "objc_setProperty"); |
| 343 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 344 | |
Fariborz Jahanian | 6cc5906 | 2010-04-12 18:18:10 +0000 | [diff] [blame] | 345 | |
| 346 | llvm::Constant *getCopyStructFn() { |
| 347 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 348 | ASTContext &Ctx = CGM.getContext(); |
| 349 | // void objc_copyStruct (void *, const void *, size_t, bool, bool) |
| 350 | llvm::SmallVector<CanQualType,5> Params; |
| 351 | Params.push_back(Ctx.VoidPtrTy); |
| 352 | Params.push_back(Ctx.VoidPtrTy); |
| 353 | Params.push_back(Ctx.LongTy); |
| 354 | Params.push_back(Ctx.BoolTy); |
| 355 | Params.push_back(Ctx.BoolTy); |
| 356 | const llvm::FunctionType *FTy = |
| 357 | Types.GetFunctionType(Types.getFunctionInfo(Ctx.VoidTy, Params, |
| 358 | FunctionType::ExtInfo()), |
| 359 | false); |
| 360 | return CGM.CreateRuntimeFunction(FTy, "objc_copyStruct"); |
| 361 | } |
| 362 | |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 363 | llvm::Constant *getEnumerationMutationFn() { |
Daniel Dunbar | c1ab900 | 2009-07-11 20:32:50 +0000 | [diff] [blame] | 364 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 365 | ASTContext &Ctx = CGM.getContext(); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 366 | // void objc_enumerationMutation (id) |
John McCall | ead608a | 2010-02-26 00:48:12 +0000 | [diff] [blame] | 367 | llvm::SmallVector<CanQualType,1> Params; |
| 368 | Params.push_back(Ctx.getCanonicalParamType(Ctx.getObjCIdType())); |
Daniel Dunbar | c1ab900 | 2009-07-11 20:32:50 +0000 | [diff] [blame] | 369 | const llvm::FunctionType *FTy = |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 370 | Types.GetFunctionType(Types.getFunctionInfo(Ctx.VoidTy, Params, |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 371 | FunctionType::ExtInfo()), |
| 372 | false); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 373 | return CGM.CreateRuntimeFunction(FTy, "objc_enumerationMutation"); |
| 374 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 375 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 376 | /// GcReadWeakFn -- LLVM objc_read_weak (id *src) function. |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 377 | llvm::Constant *getGcReadWeakFn() { |
| 378 | // id objc_read_weak (id *) |
| 379 | std::vector<const llvm::Type*> Args; |
| 380 | Args.push_back(ObjectPtrTy->getPointerTo()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 381 | llvm::FunctionType *FTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 382 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 383 | return CGM.CreateRuntimeFunction(FTy, "objc_read_weak"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 384 | } |
| 385 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 386 | /// GcAssignWeakFn -- LLVM objc_assign_weak function. |
Chris Lattner | 96508e1 | 2009-04-17 22:12:36 +0000 | [diff] [blame] | 387 | llvm::Constant *getGcAssignWeakFn() { |
| 388 | // id objc_assign_weak (id, id *) |
| 389 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 390 | Args.push_back(ObjectPtrTy->getPointerTo()); |
| 391 | llvm::FunctionType *FTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 392 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
Chris Lattner | 96508e1 | 2009-04-17 22:12:36 +0000 | [diff] [blame] | 393 | return CGM.CreateRuntimeFunction(FTy, "objc_assign_weak"); |
| 394 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 395 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 396 | /// GcAssignGlobalFn -- LLVM objc_assign_global function. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 397 | llvm::Constant *getGcAssignGlobalFn() { |
| 398 | // id objc_assign_global(id, id *) |
| 399 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 400 | Args.push_back(ObjectPtrTy->getPointerTo()); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 401 | llvm::FunctionType *FTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 402 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 403 | return CGM.CreateRuntimeFunction(FTy, "objc_assign_global"); |
| 404 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 405 | |
Fariborz Jahanian | 021a7a6 | 2010-07-20 20:30:03 +0000 | [diff] [blame] | 406 | /// GcAssignThreadLocalFn -- LLVM objc_assign_threadlocal function. |
| 407 | llvm::Constant *getGcAssignThreadLocalFn() { |
| 408 | // id objc_assign_threadlocal(id src, id * dest) |
| 409 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 410 | Args.push_back(ObjectPtrTy->getPointerTo()); |
| 411 | llvm::FunctionType *FTy = |
| 412 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
| 413 | return CGM.CreateRuntimeFunction(FTy, "objc_assign_threadlocal"); |
| 414 | } |
| 415 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 416 | /// GcAssignIvarFn -- LLVM objc_assign_ivar function. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 417 | llvm::Constant *getGcAssignIvarFn() { |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 418 | // id objc_assign_ivar(id, id *, ptrdiff_t) |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 419 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 420 | Args.push_back(ObjectPtrTy->getPointerTo()); |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 421 | Args.push_back(LongTy); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 422 | llvm::FunctionType *FTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 423 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 424 | return CGM.CreateRuntimeFunction(FTy, "objc_assign_ivar"); |
| 425 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 426 | |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 427 | /// GcMemmoveCollectableFn -- LLVM objc_memmove_collectable function. |
| 428 | llvm::Constant *GcMemmoveCollectableFn() { |
| 429 | // void *objc_memmove_collectable(void *dst, const void *src, size_t size) |
| 430 | std::vector<const llvm::Type*> Args(1, Int8PtrTy); |
| 431 | Args.push_back(Int8PtrTy); |
| 432 | Args.push_back(LongTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 433 | llvm::FunctionType *FTy = llvm::FunctionType::get(Int8PtrTy, Args, false); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 434 | return CGM.CreateRuntimeFunction(FTy, "objc_memmove_collectable"); |
| 435 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 436 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 437 | /// GcAssignStrongCastFn -- LLVM objc_assign_strongCast function. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 438 | llvm::Constant *getGcAssignStrongCastFn() { |
Fariborz Jahanian | 021a7a6 | 2010-07-20 20:30:03 +0000 | [diff] [blame] | 439 | // id objc_assign_strongCast(id, id *) |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 440 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 441 | Args.push_back(ObjectPtrTy->getPointerTo()); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 442 | llvm::FunctionType *FTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 443 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 444 | return CGM.CreateRuntimeFunction(FTy, "objc_assign_strongCast"); |
| 445 | } |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 446 | |
| 447 | /// ExceptionThrowFn - LLVM objc_exception_throw function. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 448 | llvm::Constant *getExceptionThrowFn() { |
| 449 | // void objc_exception_throw(id) |
| 450 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 451 | llvm::FunctionType *FTy = |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 452 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), Args, false); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 453 | return CGM.CreateRuntimeFunction(FTy, "objc_exception_throw"); |
| 454 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 455 | |
Fariborz Jahanian | 69677ea | 2010-05-28 17:34:43 +0000 | [diff] [blame] | 456 | /// ExceptionRethrowFn - LLVM objc_exception_rethrow function. |
| 457 | llvm::Constant *getExceptionRethrowFn() { |
| 458 | // void objc_exception_rethrow(void) |
| 459 | std::vector<const llvm::Type*> Args; |
| 460 | llvm::FunctionType *FTy = |
| 461 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), Args, true); |
| 462 | return CGM.CreateRuntimeFunction(FTy, "objc_exception_rethrow"); |
| 463 | } |
| 464 | |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 465 | /// SyncEnterFn - LLVM object_sync_enter function. |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 466 | llvm::Constant *getSyncEnterFn() { |
| 467 | // void objc_sync_enter (id) |
| 468 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 469 | llvm::FunctionType *FTy = |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 470 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), Args, false); |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 471 | return CGM.CreateRuntimeFunction(FTy, "objc_sync_enter"); |
| 472 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 473 | |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 474 | /// SyncExitFn - LLVM object_sync_exit function. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 475 | llvm::Constant *getSyncExitFn() { |
| 476 | // void objc_sync_exit (id) |
| 477 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 478 | llvm::FunctionType *FTy = |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 479 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), Args, false); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 480 | return CGM.CreateRuntimeFunction(FTy, "objc_sync_exit"); |
| 481 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 482 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 483 | llvm::Constant *getSendFn(bool IsSuper) const { |
| 484 | return IsSuper ? getMessageSendSuperFn() : getMessageSendFn(); |
| 485 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 486 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 487 | llvm::Constant *getSendFn2(bool IsSuper) const { |
| 488 | return IsSuper ? getMessageSendSuperFn2() : getMessageSendFn(); |
| 489 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 490 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 491 | llvm::Constant *getSendStretFn(bool IsSuper) const { |
| 492 | return IsSuper ? getMessageSendSuperStretFn() : getMessageSendStretFn(); |
| 493 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 494 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 495 | llvm::Constant *getSendStretFn2(bool IsSuper) const { |
| 496 | return IsSuper ? getMessageSendSuperStretFn2() : getMessageSendStretFn(); |
| 497 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 498 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 499 | llvm::Constant *getSendFpretFn(bool IsSuper) const { |
| 500 | return IsSuper ? getMessageSendSuperFpretFn() : getMessageSendFpretFn(); |
| 501 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 502 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 503 | llvm::Constant *getSendFpretFn2(bool IsSuper) const { |
| 504 | return IsSuper ? getMessageSendSuperFpretFn2() : getMessageSendFpretFn(); |
| 505 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 506 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 507 | ObjCCommonTypesHelper(CodeGen::CodeGenModule &cgm); |
| 508 | ~ObjCCommonTypesHelper(){} |
| 509 | }; |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 510 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 511 | /// ObjCTypesHelper - Helper class that encapsulates lazy |
| 512 | /// construction of varies types used during ObjC generation. |
| 513 | class ObjCTypesHelper : public ObjCCommonTypesHelper { |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 514 | public: |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 515 | /// SymtabTy - LLVM type for struct objc_symtab. |
| 516 | const llvm::StructType *SymtabTy; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 517 | /// SymtabPtrTy - LLVM type for struct objc_symtab *. |
| 518 | const llvm::Type *SymtabPtrTy; |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 519 | /// ModuleTy - LLVM type for struct objc_module. |
| 520 | const llvm::StructType *ModuleTy; |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 521 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 522 | /// ProtocolTy - LLVM type for struct objc_protocol. |
| 523 | const llvm::StructType *ProtocolTy; |
| 524 | /// ProtocolPtrTy - LLVM type for struct objc_protocol *. |
| 525 | const llvm::Type *ProtocolPtrTy; |
| 526 | /// ProtocolExtensionTy - LLVM type for struct |
| 527 | /// objc_protocol_extension. |
| 528 | const llvm::StructType *ProtocolExtensionTy; |
| 529 | /// ProtocolExtensionTy - LLVM type for struct |
| 530 | /// objc_protocol_extension *. |
| 531 | const llvm::Type *ProtocolExtensionPtrTy; |
| 532 | /// MethodDescriptionTy - LLVM type for struct |
| 533 | /// objc_method_description. |
| 534 | const llvm::StructType *MethodDescriptionTy; |
| 535 | /// MethodDescriptionListTy - LLVM type for struct |
| 536 | /// objc_method_description_list. |
| 537 | const llvm::StructType *MethodDescriptionListTy; |
| 538 | /// MethodDescriptionListPtrTy - LLVM type for struct |
| 539 | /// objc_method_description_list *. |
| 540 | const llvm::Type *MethodDescriptionListPtrTy; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 541 | /// ProtocolListTy - LLVM type for struct objc_property_list. |
| 542 | const llvm::Type *ProtocolListTy; |
| 543 | /// ProtocolListPtrTy - LLVM type for struct objc_property_list*. |
| 544 | const llvm::Type *ProtocolListPtrTy; |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 545 | /// CategoryTy - LLVM type for struct objc_category. |
| 546 | const llvm::StructType *CategoryTy; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 547 | /// ClassTy - LLVM type for struct objc_class. |
| 548 | const llvm::StructType *ClassTy; |
| 549 | /// ClassPtrTy - LLVM type for struct objc_class *. |
| 550 | const llvm::Type *ClassPtrTy; |
| 551 | /// ClassExtensionTy - LLVM type for struct objc_class_ext. |
| 552 | const llvm::StructType *ClassExtensionTy; |
| 553 | /// ClassExtensionPtrTy - LLVM type for struct objc_class_ext *. |
| 554 | const llvm::Type *ClassExtensionPtrTy; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 555 | // IvarTy - LLVM type for struct objc_ivar. |
| 556 | const llvm::StructType *IvarTy; |
| 557 | /// IvarListTy - LLVM type for struct objc_ivar_list. |
| 558 | const llvm::Type *IvarListTy; |
| 559 | /// IvarListPtrTy - LLVM type for struct objc_ivar_list *. |
| 560 | const llvm::Type *IvarListPtrTy; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 561 | /// MethodListTy - LLVM type for struct objc_method_list. |
| 562 | const llvm::Type *MethodListTy; |
| 563 | /// MethodListPtrTy - LLVM type for struct objc_method_list *. |
| 564 | const llvm::Type *MethodListPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 565 | |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 566 | /// ExceptionDataTy - LLVM type for struct _objc_exception_data. |
| 567 | const llvm::Type *ExceptionDataTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 568 | |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 569 | /// ExceptionTryEnterFn - LLVM objc_exception_try_enter function. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 570 | llvm::Constant *getExceptionTryEnterFn() { |
| 571 | std::vector<const llvm::Type*> Params; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 572 | Params.push_back(llvm::PointerType::getUnqual(ExceptionDataTy)); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 573 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 574 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 575 | Params, false), |
| 576 | "objc_exception_try_enter"); |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 577 | } |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 578 | |
| 579 | /// ExceptionTryExitFn - LLVM objc_exception_try_exit function. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 580 | llvm::Constant *getExceptionTryExitFn() { |
| 581 | std::vector<const llvm::Type*> Params; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 582 | Params.push_back(llvm::PointerType::getUnqual(ExceptionDataTy)); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 583 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 584 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 585 | Params, false), |
| 586 | "objc_exception_try_exit"); |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 587 | } |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 588 | |
| 589 | /// ExceptionExtractFn - LLVM objc_exception_extract function. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 590 | llvm::Constant *getExceptionExtractFn() { |
| 591 | std::vector<const llvm::Type*> Params; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 592 | Params.push_back(llvm::PointerType::getUnqual(ExceptionDataTy)); |
| 593 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 594 | Params, false), |
| 595 | "objc_exception_extract"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 596 | |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 597 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 598 | |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 599 | /// ExceptionMatchFn - LLVM objc_exception_match function. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 600 | llvm::Constant *getExceptionMatchFn() { |
| 601 | std::vector<const llvm::Type*> Params; |
| 602 | Params.push_back(ClassPtrTy); |
| 603 | Params.push_back(ObjectPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 604 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 605 | llvm::FunctionType::get(llvm::Type::getInt32Ty(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 606 | Params, false), |
| 607 | "objc_exception_match"); |
| 608 | |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 609 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 610 | |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 611 | /// SetJmpFn - LLVM _setjmp function. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 612 | llvm::Constant *getSetJmpFn() { |
| 613 | std::vector<const llvm::Type*> Params; |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 614 | Params.push_back(llvm::Type::getInt32PtrTy(VMContext)); |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 615 | return |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 616 | CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::getInt32Ty(VMContext), |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 617 | Params, false), |
| 618 | "_setjmp"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 619 | |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 620 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 621 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 622 | public: |
| 623 | ObjCTypesHelper(CodeGen::CodeGenModule &cgm); |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 624 | ~ObjCTypesHelper() {} |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 625 | }; |
| 626 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 627 | /// ObjCNonFragileABITypesHelper - will have all types needed by objective-c's |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 628 | /// modern abi |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 629 | class ObjCNonFragileABITypesHelper : public ObjCCommonTypesHelper { |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 630 | public: |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 631 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 632 | // MethodListnfABITy - LLVM for struct _method_list_t |
| 633 | const llvm::StructType *MethodListnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 634 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 635 | // MethodListnfABIPtrTy - LLVM for struct _method_list_t* |
| 636 | const llvm::Type *MethodListnfABIPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 637 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 638 | // ProtocolnfABITy = LLVM for struct _protocol_t |
| 639 | const llvm::StructType *ProtocolnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 640 | |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 641 | // ProtocolnfABIPtrTy = LLVM for struct _protocol_t* |
| 642 | const llvm::Type *ProtocolnfABIPtrTy; |
| 643 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 644 | // ProtocolListnfABITy - LLVM for struct _objc_protocol_list |
| 645 | const llvm::StructType *ProtocolListnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 646 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 647 | // ProtocolListnfABIPtrTy - LLVM for struct _objc_protocol_list* |
| 648 | const llvm::Type *ProtocolListnfABIPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 649 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 650 | // ClassnfABITy - LLVM for struct _class_t |
| 651 | const llvm::StructType *ClassnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 652 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 653 | // ClassnfABIPtrTy - LLVM for struct _class_t* |
| 654 | const llvm::Type *ClassnfABIPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 655 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 656 | // IvarnfABITy - LLVM for struct _ivar_t |
| 657 | const llvm::StructType *IvarnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 658 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 659 | // IvarListnfABITy - LLVM for struct _ivar_list_t |
| 660 | const llvm::StructType *IvarListnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 661 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 662 | // IvarListnfABIPtrTy = LLVM for struct _ivar_list_t* |
| 663 | const llvm::Type *IvarListnfABIPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 664 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 665 | // ClassRonfABITy - LLVM for struct _class_ro_t |
| 666 | const llvm::StructType *ClassRonfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 667 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 668 | // ImpnfABITy - LLVM for id (*)(id, SEL, ...) |
| 669 | const llvm::Type *ImpnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 670 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 671 | // CategorynfABITy - LLVM for struct _category_t |
| 672 | const llvm::StructType *CategorynfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 673 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 674 | // New types for nonfragile abi messaging. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 675 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 676 | // MessageRefTy - LLVM for: |
| 677 | // struct _message_ref_t { |
| 678 | // IMP messenger; |
| 679 | // SEL name; |
| 680 | // }; |
| 681 | const llvm::StructType *MessageRefTy; |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 682 | // MessageRefCTy - clang type for struct _message_ref_t |
| 683 | QualType MessageRefCTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 684 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 685 | // MessageRefPtrTy - LLVM for struct _message_ref_t* |
| 686 | const llvm::Type *MessageRefPtrTy; |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 687 | // MessageRefCPtrTy - clang type for struct _message_ref_t* |
| 688 | QualType MessageRefCPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 689 | |
Fariborz Jahanian | ef16378 | 2009-02-05 01:13:09 +0000 | [diff] [blame] | 690 | // MessengerTy - Type of the messenger (shown as IMP above) |
| 691 | const llvm::FunctionType *MessengerTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 692 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 693 | // SuperMessageRefTy - LLVM for: |
| 694 | // struct _super_message_ref_t { |
| 695 | // SUPER_IMP messenger; |
| 696 | // SEL name; |
| 697 | // }; |
| 698 | const llvm::StructType *SuperMessageRefTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 699 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 700 | // SuperMessageRefPtrTy - LLVM for struct _super_message_ref_t* |
| 701 | const llvm::Type *SuperMessageRefPtrTy; |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 702 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 703 | llvm::Constant *getMessageSendFixupFn() { |
| 704 | // id objc_msgSend_fixup(id, struct message_ref_t*, ...) |
| 705 | std::vector<const llvm::Type*> Params; |
| 706 | Params.push_back(ObjectPtrTy); |
| 707 | Params.push_back(MessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 708 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 709 | Params, true), |
| 710 | "objc_msgSend_fixup"); |
| 711 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 712 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 713 | llvm::Constant *getMessageSendFpretFixupFn() { |
| 714 | // id objc_msgSend_fpret_fixup(id, struct message_ref_t*, ...) |
| 715 | std::vector<const llvm::Type*> Params; |
| 716 | Params.push_back(ObjectPtrTy); |
| 717 | Params.push_back(MessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 718 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 719 | Params, true), |
| 720 | "objc_msgSend_fpret_fixup"); |
| 721 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 722 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 723 | llvm::Constant *getMessageSendStretFixupFn() { |
| 724 | // id objc_msgSend_stret_fixup(id, struct message_ref_t*, ...) |
| 725 | std::vector<const llvm::Type*> Params; |
| 726 | Params.push_back(ObjectPtrTy); |
| 727 | Params.push_back(MessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 728 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 729 | Params, true), |
| 730 | "objc_msgSend_stret_fixup"); |
| 731 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 732 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 733 | llvm::Constant *getMessageSendIdFixupFn() { |
| 734 | // id objc_msgSendId_fixup(id, struct message_ref_t*, ...) |
| 735 | std::vector<const llvm::Type*> Params; |
| 736 | Params.push_back(ObjectPtrTy); |
| 737 | Params.push_back(MessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 738 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 739 | Params, true), |
| 740 | "objc_msgSendId_fixup"); |
| 741 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 742 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 743 | llvm::Constant *getMessageSendIdStretFixupFn() { |
| 744 | // id objc_msgSendId_stret_fixup(id, struct message_ref_t*, ...) |
| 745 | std::vector<const llvm::Type*> Params; |
| 746 | Params.push_back(ObjectPtrTy); |
| 747 | Params.push_back(MessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 748 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 749 | Params, true), |
| 750 | "objc_msgSendId_stret_fixup"); |
| 751 | } |
| 752 | llvm::Constant *getMessageSendSuper2FixupFn() { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 753 | // id objc_msgSendSuper2_fixup (struct objc_super *, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 754 | // struct _super_message_ref_t*, ...) |
| 755 | std::vector<const llvm::Type*> Params; |
| 756 | Params.push_back(SuperPtrTy); |
| 757 | Params.push_back(SuperMessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 758 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 759 | Params, true), |
| 760 | "objc_msgSendSuper2_fixup"); |
| 761 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 762 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 763 | llvm::Constant *getMessageSendSuper2StretFixupFn() { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 764 | // id objc_msgSendSuper2_stret_fixup(struct objc_super *, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 765 | // struct _super_message_ref_t*, ...) |
| 766 | std::vector<const llvm::Type*> Params; |
| 767 | Params.push_back(SuperPtrTy); |
| 768 | Params.push_back(SuperMessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 769 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 770 | Params, true), |
| 771 | "objc_msgSendSuper2_stret_fixup"); |
| 772 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 773 | |
| 774 | |
| 775 | |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 776 | /// EHPersonalityPtr - LLVM value for an i8* to the Objective-C |
| 777 | /// exception personality function. |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 778 | llvm::Value *getEHPersonalityPtr() { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 779 | llvm::Constant *Personality = |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 780 | CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::getInt32Ty(VMContext), |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 781 | true), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 782 | "__objc_personality_v0"); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 783 | return llvm::ConstantExpr::getBitCast(Personality, Int8PtrTy); |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 784 | } |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 785 | |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 786 | llvm::Constant *getUnwindResumeOrRethrowFn() { |
| 787 | std::vector<const llvm::Type*> Params; |
| 788 | Params.push_back(Int8PtrTy); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 789 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 790 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 791 | Params, false), |
Daniel Dunbar | b2987d1 | 2010-02-10 18:49:11 +0000 | [diff] [blame] | 792 | (CGM.getLangOptions().SjLjExceptions ? "_Unwind_SjLj_Resume" : |
| 793 | "_Unwind_Resume_or_Rethrow")); |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 794 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 795 | |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 796 | llvm::Constant *getObjCEndCatchFn() { |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 797 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Chris Lattner | b59761b | 2009-07-01 04:13:52 +0000 | [diff] [blame] | 798 | false), |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 799 | "objc_end_catch"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 800 | |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 801 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 802 | |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 803 | llvm::Constant *getObjCBeginCatchFn() { |
| 804 | std::vector<const llvm::Type*> Params; |
| 805 | Params.push_back(Int8PtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 806 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(Int8PtrTy, |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 807 | Params, false), |
| 808 | "objc_begin_catch"); |
| 809 | } |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 810 | |
| 811 | const llvm::StructType *EHTypeTy; |
| 812 | const llvm::Type *EHTypePtrTy; |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 813 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 814 | ObjCNonFragileABITypesHelper(CodeGen::CodeGenModule &cgm); |
| 815 | ~ObjCNonFragileABITypesHelper(){} |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 816 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 817 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 818 | class CGObjCCommonMac : public CodeGen::CGObjCRuntime { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 819 | public: |
| 820 | // FIXME - accessibility |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 821 | class GC_IVAR { |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 822 | public: |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 823 | unsigned ivar_bytepos; |
| 824 | unsigned ivar_size; |
| 825 | GC_IVAR(unsigned bytepos = 0, unsigned size = 0) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 826 | : ivar_bytepos(bytepos), ivar_size(size) {} |
Daniel Dunbar | 0941b49 | 2009-04-23 01:29:05 +0000 | [diff] [blame] | 827 | |
| 828 | // Allow sorting based on byte pos. |
| 829 | bool operator<(const GC_IVAR &b) const { |
| 830 | return ivar_bytepos < b.ivar_bytepos; |
| 831 | } |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 832 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 833 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 834 | class SKIP_SCAN { |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 835 | public: |
| 836 | unsigned skip; |
| 837 | unsigned scan; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 838 | SKIP_SCAN(unsigned _skip = 0, unsigned _scan = 0) |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 839 | : skip(_skip), scan(_scan) {} |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 840 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 841 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 842 | protected: |
| 843 | CodeGen::CodeGenModule &CGM; |
Owen Anderson | 6924382 | 2009-07-13 04:10:07 +0000 | [diff] [blame] | 844 | llvm::LLVMContext &VMContext; |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 845 | // FIXME! May not be needing this after all. |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 846 | unsigned ObjCABI; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 847 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 848 | // gc ivar layout bitmap calculation helper caches. |
| 849 | llvm::SmallVector<GC_IVAR, 16> SkipIvars; |
| 850 | llvm::SmallVector<GC_IVAR, 16> IvarsInfo; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 851 | |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 852 | /// LazySymbols - Symbols to generate a lazy reference for. See |
| 853 | /// DefinedSymbols and FinishModule(). |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 854 | llvm::SetVector<IdentifierInfo*> LazySymbols; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 855 | |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 856 | /// DefinedSymbols - External symbols which are defined by this |
| 857 | /// module. The symbols in this list and LazySymbols are used to add |
| 858 | /// special linker symbols which ensure that Objective-C modules are |
| 859 | /// linked properly. |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 860 | llvm::SetVector<IdentifierInfo*> DefinedSymbols; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 861 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 862 | /// ClassNames - uniqued class names. |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 863 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> ClassNames; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 864 | |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 865 | /// MethodVarNames - uniqued method variable names. |
| 866 | llvm::DenseMap<Selector, llvm::GlobalVariable*> MethodVarNames; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 867 | |
Fariborz Jahanian | b9c5b3d | 2010-06-21 22:05:18 +0000 | [diff] [blame] | 868 | /// DefinedCategoryNames - list of category names in form Class_Category. |
| 869 | llvm::SetVector<std::string> DefinedCategoryNames; |
| 870 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 871 | /// MethodVarTypes - uniqued method type signatures. We have to use |
| 872 | /// a StringMap here because have no other unique reference. |
| 873 | llvm::StringMap<llvm::GlobalVariable*> MethodVarTypes; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 874 | |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 875 | /// MethodDefinitions - map of methods which have been defined in |
| 876 | /// this translation unit. |
| 877 | llvm::DenseMap<const ObjCMethodDecl*, llvm::Function*> MethodDefinitions; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 878 | |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 879 | /// PropertyNames - uniqued method variable names. |
| 880 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> PropertyNames; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 881 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 882 | /// ClassReferences - uniqued class references. |
| 883 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> ClassReferences; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 884 | |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 885 | /// SelectorReferences - uniqued selector references. |
| 886 | llvm::DenseMap<Selector, llvm::GlobalVariable*> SelectorReferences; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 887 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 888 | /// Protocols - Protocols for which an objc_protocol structure has |
| 889 | /// been emitted. Forward declarations are handled by creating an |
| 890 | /// empty structure whose initializer is filled in when/if defined. |
| 891 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> Protocols; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 892 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 893 | /// DefinedProtocols - Protocols which have actually been |
| 894 | /// defined. We should not need this, see FIXME in GenerateProtocol. |
| 895 | llvm::DenseSet<IdentifierInfo*> DefinedProtocols; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 896 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 897 | /// DefinedClasses - List of defined classes. |
| 898 | std::vector<llvm::GlobalValue*> DefinedClasses; |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 899 | |
| 900 | /// DefinedNonLazyClasses - List of defined "non-lazy" classes. |
| 901 | std::vector<llvm::GlobalValue*> DefinedNonLazyClasses; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 902 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 903 | /// DefinedCategories - List of defined categories. |
| 904 | std::vector<llvm::GlobalValue*> DefinedCategories; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 905 | |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 906 | /// DefinedNonLazyCategories - List of defined "non-lazy" categories. |
| 907 | std::vector<llvm::GlobalValue*> DefinedNonLazyCategories; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 908 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 909 | /// GetNameForMethod - Return a name for the given method. |
| 910 | /// \param[out] NameOut - The return value. |
| 911 | void GetNameForMethod(const ObjCMethodDecl *OMD, |
| 912 | const ObjCContainerDecl *CD, |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 913 | llvm::SmallVectorImpl<char> &NameOut); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 914 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 915 | /// GetMethodVarName - Return a unique constant for the given |
| 916 | /// selector's name. The return value has type char *. |
| 917 | llvm::Constant *GetMethodVarName(Selector Sel); |
| 918 | llvm::Constant *GetMethodVarName(IdentifierInfo *Ident); |
| 919 | llvm::Constant *GetMethodVarName(const std::string &Name); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 920 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 921 | /// GetMethodVarType - Return a unique constant for the given |
| 922 | /// selector's name. The return value has type char *. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 923 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 924 | // FIXME: This is a horrible name. |
| 925 | llvm::Constant *GetMethodVarType(const ObjCMethodDecl *D); |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 926 | llvm::Constant *GetMethodVarType(const FieldDecl *D); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 927 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 928 | /// GetPropertyName - Return a unique constant for the given |
| 929 | /// name. The return value has type char *. |
| 930 | llvm::Constant *GetPropertyName(IdentifierInfo *Ident); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 931 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 932 | // FIXME: This can be dropped once string functions are unified. |
| 933 | llvm::Constant *GetPropertyTypeString(const ObjCPropertyDecl *PD, |
| 934 | const Decl *Container); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 935 | |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 936 | /// GetClassName - Return a unique constant for the given selector's |
| 937 | /// name. The return value has type char *. |
| 938 | llvm::Constant *GetClassName(IdentifierInfo *Ident); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 939 | |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 940 | /// BuildIvarLayout - Builds ivar layout bitmap for the class |
| 941 | /// implementation for the __strong or __weak case. |
| 942 | /// |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 943 | llvm::Constant *BuildIvarLayout(const ObjCImplementationDecl *OI, |
| 944 | bool ForStrongLayout); |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 945 | |
Fariborz Jahanian | b8fd2eb | 2010-08-05 00:19:48 +0000 | [diff] [blame^] | 946 | llvm::Constant *BuildIvarLayoutBitmap(std::string &BitMap); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 947 | |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 948 | void BuildAggrIvarRecordLayout(const RecordType *RT, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 949 | unsigned int BytePos, bool ForStrongLayout, |
| 950 | bool &HasUnion); |
Daniel Dunbar | 5a5a803 | 2009-05-03 21:05:10 +0000 | [diff] [blame] | 951 | void BuildAggrIvarLayout(const ObjCImplementationDecl *OI, |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 952 | const llvm::StructLayout *Layout, |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 953 | const RecordDecl *RD, |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 954 | const llvm::SmallVectorImpl<FieldDecl*> &RecFields, |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 955 | unsigned int BytePos, bool ForStrongLayout, |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 956 | bool &HasUnion); |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 957 | |
Fariborz Jahanian | d80d81b | 2009-03-05 19:17:31 +0000 | [diff] [blame] | 958 | /// GetIvarLayoutName - Returns a unique constant for the given |
| 959 | /// ivar layout bitmap. |
| 960 | llvm::Constant *GetIvarLayoutName(IdentifierInfo *Ident, |
| 961 | const ObjCCommonTypesHelper &ObjCTypes); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 962 | |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 963 | /// EmitPropertyList - Emit the given property list. The return |
| 964 | /// value has type PropertyListPtrTy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 965 | llvm::Constant *EmitPropertyList(llvm::Twine Name, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 966 | const Decl *Container, |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 967 | const ObjCContainerDecl *OCD, |
| 968 | const ObjCCommonTypesHelper &ObjCTypes); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 969 | |
Fariborz Jahanian | 191dcd7 | 2009-12-12 21:26:21 +0000 | [diff] [blame] | 970 | /// PushProtocolProperties - Push protocol's property on the input stack. |
| 971 | void PushProtocolProperties(llvm::SmallPtrSet<const IdentifierInfo*, 16> &PropertySet, |
| 972 | std::vector<llvm::Constant*> &Properties, |
| 973 | const Decl *Container, |
| 974 | const ObjCProtocolDecl *PROTO, |
| 975 | const ObjCCommonTypesHelper &ObjCTypes); |
| 976 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 977 | /// GetProtocolRef - Return a reference to the internal protocol |
| 978 | /// description, creating an empty one if it has not been |
| 979 | /// defined. The return value has type ProtocolPtrTy. |
| 980 | llvm::Constant *GetProtocolRef(const ObjCProtocolDecl *PD); |
Fariborz Jahanian | b21f07e | 2009-03-08 20:18:37 +0000 | [diff] [blame] | 981 | |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 982 | /// CreateMetadataVar - Create a global variable with internal |
| 983 | /// linkage for use by the Objective-C runtime. |
| 984 | /// |
| 985 | /// This is a convenience wrapper which not only creates the |
| 986 | /// variable, but also sets the section and alignment and adds the |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 987 | /// global to the "llvm.used" list. |
Daniel Dunbar | 35bd763 | 2009-03-09 20:50:13 +0000 | [diff] [blame] | 988 | /// |
| 989 | /// \param Name - The variable name. |
| 990 | /// \param Init - The variable initializer; this is also used to |
| 991 | /// define the type of the variable. |
| 992 | /// \param Section - The section the variable should go into, or 0. |
| 993 | /// \param Align - The alignment for the variable, or 0. |
| 994 | /// \param AddToUsed - Whether the variable should be added to |
Daniel Dunbar | c158306 | 2009-04-14 17:42:51 +0000 | [diff] [blame] | 995 | /// "llvm.used". |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 996 | llvm::GlobalVariable *CreateMetadataVar(llvm::Twine Name, |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 997 | llvm::Constant *Init, |
| 998 | const char *Section, |
Daniel Dunbar | 35bd763 | 2009-03-09 20:50:13 +0000 | [diff] [blame] | 999 | unsigned Align, |
| 1000 | bool AddToUsed); |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 1001 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1002 | CodeGen::RValue EmitLegacyMessageSend(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1003 | ReturnValueSlot Return, |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1004 | QualType ResultType, |
| 1005 | llvm::Value *Sel, |
| 1006 | llvm::Value *Arg0, |
| 1007 | QualType Arg0Ty, |
| 1008 | bool IsSuper, |
| 1009 | const CallArgList &CallArgs, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1010 | const ObjCMethodDecl *OMD, |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1011 | const ObjCCommonTypesHelper &ObjCTypes); |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 1012 | |
Daniel Dunbar | fce176b | 2010-04-25 20:39:01 +0000 | [diff] [blame] | 1013 | /// EmitImageInfo - Emit the image info marker used to encode some module |
| 1014 | /// level information. |
| 1015 | void EmitImageInfo(); |
| 1016 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1017 | public: |
Owen Anderson | 6924382 | 2009-07-13 04:10:07 +0000 | [diff] [blame] | 1018 | CGObjCCommonMac(CodeGen::CodeGenModule &cgm) : |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1019 | CGM(cgm), VMContext(cgm.getLLVMContext()) { } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1020 | |
David Chisnall | 0d13f6f | 2010-01-23 02:40:42 +0000 | [diff] [blame] | 1021 | virtual llvm::Constant *GenerateConstantString(const StringLiteral *SL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1022 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 1023 | virtual llvm::Function *GenerateMethod(const ObjCMethodDecl *OMD, |
| 1024 | const ObjCContainerDecl *CD=0); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1025 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1026 | virtual void GenerateProtocol(const ObjCProtocolDecl *PD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1027 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1028 | /// GetOrEmitProtocol - Get the protocol object for the given |
| 1029 | /// declaration, emitting it if necessary. The return value has type |
| 1030 | /// ProtocolPtrTy. |
| 1031 | virtual llvm::Constant *GetOrEmitProtocol(const ObjCProtocolDecl *PD)=0; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1032 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1033 | /// GetOrEmitProtocolRef - Get a forward reference to the protocol |
| 1034 | /// object for the given declaration, emitting it if needed. These |
| 1035 | /// forward references will be filled in with empty bodies if no |
| 1036 | /// definition is seen. The return value has type ProtocolPtrTy. |
| 1037 | virtual llvm::Constant *GetOrEmitProtocolRef(const ObjCProtocolDecl *PD)=0; |
Fariborz Jahanian | 89ecd41 | 2010-08-04 16:57:49 +0000 | [diff] [blame] | 1038 | virtual llvm::Constant *GCBlockLayout(CodeGen::CodeGenFunction &CGF, |
| 1039 | const llvm::SmallVectorImpl<const BlockDeclRefExpr *> &); |
| 1040 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1041 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1042 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1043 | class CGObjCMac : public CGObjCCommonMac { |
| 1044 | private: |
| 1045 | ObjCTypesHelper ObjCTypes; |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 1046 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 1047 | /// EmitModuleInfo - Another marker encoding module level |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1048 | /// information. |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 1049 | void EmitModuleInfo(); |
| 1050 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1051 | /// EmitModuleSymols - Emit module symbols, the list of defined |
| 1052 | /// classes and categories. The result has type SymtabPtrTy. |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 1053 | llvm::Constant *EmitModuleSymbols(); |
| 1054 | |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 1055 | /// FinishModule - Write out global data structures at the end of |
| 1056 | /// processing a translation unit. |
| 1057 | void FinishModule(); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1058 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1059 | /// EmitClassExtension - Generate the class extension structure used |
| 1060 | /// to store the weak ivar layout and properties. The return value |
| 1061 | /// has type ClassExtensionPtrTy. |
| 1062 | llvm::Constant *EmitClassExtension(const ObjCImplementationDecl *ID); |
| 1063 | |
| 1064 | /// EmitClassRef - Return a Value*, of type ObjCTypes.ClassPtrTy, |
| 1065 | /// for the given class. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1066 | llvm::Value *EmitClassRef(CGBuilderTy &Builder, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1067 | const ObjCInterfaceDecl *ID); |
Fariborz Jahanian | b0069ee | 2009-11-12 20:14:24 +0000 | [diff] [blame] | 1068 | |
| 1069 | /// EmitSuperClassRef - Emits reference to class's main metadata class. |
| 1070 | llvm::Value *EmitSuperClassRef(const ObjCInterfaceDecl *ID); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1071 | |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 1072 | CodeGen::RValue EmitMessageSend(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1073 | ReturnValueSlot Return, |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 1074 | QualType ResultType, |
| 1075 | Selector Sel, |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 1076 | llvm::Value *Arg0, |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1077 | QualType Arg0Ty, |
| 1078 | bool IsSuper, |
| 1079 | const CallArgList &CallArgs); |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 1080 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1081 | /// EmitIvarList - Emit the ivar list for the given |
| 1082 | /// implementation. If ForClass is true the list of class ivars |
| 1083 | /// (i.e. metaclass ivars) is emitted, otherwise the list of |
| 1084 | /// interface ivars will be emitted. The return value has type |
| 1085 | /// IvarListPtrTy. |
| 1086 | llvm::Constant *EmitIvarList(const ObjCImplementationDecl *ID, |
Fariborz Jahanian | 46b86c6 | 2009-01-28 19:12:34 +0000 | [diff] [blame] | 1087 | bool ForClass); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1088 | |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1089 | /// EmitMetaClass - Emit a forward reference to the class structure |
| 1090 | /// for the metaclass of the given interface. The return value has |
| 1091 | /// type ClassPtrTy. |
| 1092 | llvm::Constant *EmitMetaClassRef(const ObjCInterfaceDecl *ID); |
| 1093 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1094 | /// EmitMetaClass - Emit a class structure for the metaclass of the |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1095 | /// given implementation. The return value has type ClassPtrTy. |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1096 | llvm::Constant *EmitMetaClass(const ObjCImplementationDecl *ID, |
| 1097 | llvm::Constant *Protocols, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1098 | const ConstantVector &Methods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1099 | |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1100 | llvm::Constant *GetMethodConstant(const ObjCMethodDecl *MD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1101 | |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1102 | llvm::Constant *GetMethodDescriptionConstant(const ObjCMethodDecl *MD); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1103 | |
| 1104 | /// EmitMethodList - Emit the method list for the given |
Daniel Dunbar | af05bb9 | 2008-08-26 08:29:31 +0000 | [diff] [blame] | 1105 | /// implementation. The return value has type MethodListPtrTy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1106 | llvm::Constant *EmitMethodList(llvm::Twine Name, |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 1107 | const char *Section, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1108 | const ConstantVector &Methods); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1109 | |
| 1110 | /// EmitMethodDescList - Emit a method description list for a list of |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1111 | /// method declarations. |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1112 | /// - TypeName: The name for the type containing the methods. |
| 1113 | /// - IsProtocol: True iff these methods are for a protocol. |
| 1114 | /// - ClassMethds: True iff these are class methods. |
| 1115 | /// - Required: When true, only "required" methods are |
| 1116 | /// listed. Similarly, when false only "optional" methods are |
| 1117 | /// listed. For classes this should always be true. |
| 1118 | /// - begin, end: The method list to output. |
| 1119 | /// |
| 1120 | /// The return value has type MethodDescriptionListPtrTy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1121 | llvm::Constant *EmitMethodDescList(llvm::Twine Name, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1122 | const char *Section, |
| 1123 | const ConstantVector &Methods); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1124 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1125 | /// GetOrEmitProtocol - Get the protocol object for the given |
| 1126 | /// declaration, emitting it if necessary. The return value has type |
| 1127 | /// ProtocolPtrTy. |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1128 | virtual llvm::Constant *GetOrEmitProtocol(const ObjCProtocolDecl *PD); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1129 | |
| 1130 | /// GetOrEmitProtocolRef - Get a forward reference to the protocol |
| 1131 | /// object for the given declaration, emitting it if needed. These |
| 1132 | /// forward references will be filled in with empty bodies if no |
| 1133 | /// definition is seen. The return value has type ProtocolPtrTy. |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1134 | virtual llvm::Constant *GetOrEmitProtocolRef(const ObjCProtocolDecl *PD); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1135 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1136 | /// EmitProtocolExtension - Generate the protocol extension |
| 1137 | /// structure used to store optional instance and class methods, and |
| 1138 | /// protocol properties. The return value has type |
| 1139 | /// ProtocolExtensionPtrTy. |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1140 | llvm::Constant * |
| 1141 | EmitProtocolExtension(const ObjCProtocolDecl *PD, |
| 1142 | const ConstantVector &OptInstanceMethods, |
| 1143 | const ConstantVector &OptClassMethods); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1144 | |
| 1145 | /// EmitProtocolList - Generate the list of referenced |
| 1146 | /// protocols. The return value has type ProtocolListPtrTy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1147 | llvm::Constant *EmitProtocolList(llvm::Twine Name, |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1148 | ObjCProtocolDecl::protocol_iterator begin, |
| 1149 | ObjCProtocolDecl::protocol_iterator end); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1150 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1151 | /// EmitSelector - Return a Value*, of type ObjCTypes.SelectorPtrTy, |
| 1152 | /// for the given selector. |
Fariborz Jahanian | 03b2960 | 2010-06-17 19:56:20 +0000 | [diff] [blame] | 1153 | llvm::Value *EmitSelector(CGBuilderTy &Builder, Selector Sel, |
| 1154 | bool lval=false); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1155 | |
| 1156 | public: |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1157 | CGObjCMac(CodeGen::CodeGenModule &cgm); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1158 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1159 | virtual llvm::Function *ModuleInitFunction(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1160 | |
Daniel Dunbar | 8f2926b | 2008-08-23 03:46:30 +0000 | [diff] [blame] | 1161 | virtual CodeGen::RValue GenerateMessageSend(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1162 | ReturnValueSlot Return, |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 1163 | QualType ResultType, |
| 1164 | Selector Sel, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1165 | llvm::Value *Receiver, |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1166 | const CallArgList &CallArgs, |
David Chisnall | c6cd5fd | 2010-04-28 19:33:36 +0000 | [diff] [blame] | 1167 | const ObjCInterfaceDecl *Class, |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1168 | const ObjCMethodDecl *Method); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1169 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1170 | virtual CodeGen::RValue |
Daniel Dunbar | 8f2926b | 2008-08-23 03:46:30 +0000 | [diff] [blame] | 1171 | GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1172 | ReturnValueSlot Return, |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 1173 | QualType ResultType, |
| 1174 | Selector Sel, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1175 | const ObjCInterfaceDecl *Class, |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 1176 | bool isCategoryImpl, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1177 | llvm::Value *Receiver, |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1178 | bool IsClassMessage, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1179 | const CallArgList &CallArgs, |
| 1180 | const ObjCMethodDecl *Method); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1181 | |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 1182 | virtual llvm::Value *GetClass(CGBuilderTy &Builder, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1183 | const ObjCInterfaceDecl *ID); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1184 | |
Fariborz Jahanian | 03b2960 | 2010-06-17 19:56:20 +0000 | [diff] [blame] | 1185 | virtual llvm::Value *GetSelector(CGBuilderTy &Builder, Selector Sel, |
| 1186 | bool lval = false); |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1187 | |
| 1188 | /// The NeXT/Apple runtimes do not support typed selectors; just emit an |
| 1189 | /// untyped one. |
| 1190 | virtual llvm::Value *GetSelector(CGBuilderTy &Builder, |
| 1191 | const ObjCMethodDecl *Method); |
| 1192 | |
John McCall | 5a18039 | 2010-07-24 00:37:23 +0000 | [diff] [blame] | 1193 | virtual llvm::Constant *GetEHType(QualType T); |
| 1194 | |
Daniel Dunbar | 7ded7f4 | 2008-08-15 22:20:32 +0000 | [diff] [blame] | 1195 | virtual void GenerateCategory(const ObjCCategoryImplDecl *CMD); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1196 | |
Daniel Dunbar | 7ded7f4 | 2008-08-15 22:20:32 +0000 | [diff] [blame] | 1197 | virtual void GenerateClass(const ObjCImplementationDecl *ClassDecl); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1198 | |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 1199 | virtual llvm::Value *GenerateProtocolRef(CGBuilderTy &Builder, |
Daniel Dunbar | af2f62c | 2008-08-13 00:59:25 +0000 | [diff] [blame] | 1200 | const ObjCProtocolDecl *PD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1201 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 1202 | virtual llvm::Constant *GetPropertyGetFunction(); |
| 1203 | virtual llvm::Constant *GetPropertySetFunction(); |
Fariborz Jahanian | 6cc5906 | 2010-04-12 18:18:10 +0000 | [diff] [blame] | 1204 | virtual llvm::Constant *GetCopyStructFunction(); |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 1205 | virtual llvm::Constant *EnumerationMutationFunction(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1206 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 1207 | virtual void EmitTryStmt(CodeGen::CodeGenFunction &CGF, |
| 1208 | const ObjCAtTryStmt &S); |
| 1209 | virtual void EmitSynchronizedStmt(CodeGen::CodeGenFunction &CGF, |
| 1210 | const ObjCAtSynchronizedStmt &S); |
| 1211 | void EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, const Stmt &S); |
Anders Carlsson | 64d5d6c | 2008-09-09 10:04:29 +0000 | [diff] [blame] | 1212 | virtual void EmitThrowStmt(CodeGen::CodeGenFunction &CGF, |
| 1213 | const ObjCAtThrowStmt &S); |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 1214 | virtual llvm::Value * EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1215 | llvm::Value *AddrWeakObj); |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 1216 | virtual void EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1217 | llvm::Value *src, llvm::Value *dst); |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 1218 | virtual void EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 021a7a6 | 2010-07-20 20:30:03 +0000 | [diff] [blame] | 1219 | llvm::Value *src, llvm::Value *dest, |
| 1220 | bool threadlocal = false); |
Fariborz Jahanian | 7eda836 | 2008-11-20 19:23:36 +0000 | [diff] [blame] | 1221 | virtual void EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 1222 | llvm::Value *src, llvm::Value *dest, |
| 1223 | llvm::Value *ivarOffset); |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 1224 | virtual void EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF, |
| 1225 | llvm::Value *src, llvm::Value *dest); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 1226 | virtual void EmitGCMemmoveCollectable(CodeGen::CodeGenFunction &CGF, |
| 1227 | llvm::Value *dest, llvm::Value *src, |
Fariborz Jahanian | 55bcace | 2010-06-15 22:44:06 +0000 | [diff] [blame] | 1228 | llvm::Value *size); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1229 | |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 1230 | virtual LValue EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF, |
| 1231 | QualType ObjectTy, |
| 1232 | llvm::Value *BaseValue, |
| 1233 | const ObjCIvarDecl *Ivar, |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 1234 | unsigned CVRQualifiers); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1235 | virtual llvm::Value *EmitIvarOffset(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 2a03192 | 2009-04-22 05:08:15 +0000 | [diff] [blame] | 1236 | const ObjCInterfaceDecl *Interface, |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1237 | const ObjCIvarDecl *Ivar); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1238 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1239 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 1240 | class CGObjCNonFragileABIMac : public CGObjCCommonMac { |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1241 | private: |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 1242 | ObjCNonFragileABITypesHelper ObjCTypes; |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1243 | llvm::GlobalVariable* ObjCEmptyCacheVar; |
| 1244 | llvm::GlobalVariable* ObjCEmptyVtableVar; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1245 | |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 1246 | /// SuperClassReferences - uniqued super class references. |
| 1247 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> SuperClassReferences; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1248 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 1249 | /// MetaClassReferences - uniqued meta class references. |
| 1250 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> MetaClassReferences; |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 1251 | |
| 1252 | /// EHTypeReferences - uniqued class ehtype references. |
| 1253 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> EHTypeReferences; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1254 | |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1255 | /// NonLegacyDispatchMethods - List of methods for which we do *not* generate |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1256 | /// legacy messaging dispatch. |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1257 | llvm::DenseSet<Selector> NonLegacyDispatchMethods; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1258 | |
Fariborz Jahanian | a03d0dd | 2009-11-17 21:37:35 +0000 | [diff] [blame] | 1259 | /// DefinedMetaClasses - List of defined meta-classes. |
| 1260 | std::vector<llvm::GlobalValue*> DefinedMetaClasses; |
| 1261 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1262 | /// LegacyDispatchedSelector - Returns true if SEL is not in the list of |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1263 | /// NonLegacyDispatchMethods; false otherwise. |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1264 | bool LegacyDispatchedSelector(Selector Sel); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1265 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1266 | /// FinishNonFragileABIModule - Write out global data structures at the end of |
| 1267 | /// processing a translation unit. |
| 1268 | void FinishNonFragileABIModule(); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1269 | |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 1270 | /// AddModuleClassList - Add the given list of class pointers to the |
| 1271 | /// module with the provided symbol and section names. |
| 1272 | void AddModuleClassList(const std::vector<llvm::GlobalValue*> &Container, |
| 1273 | const char *SymbolName, |
| 1274 | const char *SectionName); |
| 1275 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1276 | llvm::GlobalVariable * BuildClassRoTInitializer(unsigned flags, |
| 1277 | unsigned InstanceStart, |
| 1278 | unsigned InstanceSize, |
| 1279 | const ObjCImplementationDecl *ID); |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 1280 | llvm::GlobalVariable * BuildClassMetaData(std::string &ClassName, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1281 | llvm::Constant *IsAGV, |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 1282 | llvm::Constant *SuperClassGV, |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 1283 | llvm::Constant *ClassRoGV, |
| 1284 | bool HiddenVisibility); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1285 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 1286 | llvm::Constant *GetMethodConstant(const ObjCMethodDecl *MD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1287 | |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 1288 | llvm::Constant *GetMethodDescriptionConstant(const ObjCMethodDecl *MD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1289 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 1290 | /// EmitMethodList - Emit the method list for the given |
| 1291 | /// implementation. The return value has type MethodListnfABITy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1292 | llvm::Constant *EmitMethodList(llvm::Twine Name, |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 1293 | const char *Section, |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 1294 | const ConstantVector &Methods); |
| 1295 | /// EmitIvarList - Emit the ivar list for the given |
| 1296 | /// implementation. If ForClass is true the list of class ivars |
| 1297 | /// (i.e. metaclass ivars) is emitted, otherwise the list of |
| 1298 | /// interface ivars will be emitted. The return value has type |
| 1299 | /// IvarListnfABIPtrTy. |
| 1300 | llvm::Constant *EmitIvarList(const ObjCImplementationDecl *ID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1301 | |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 1302 | llvm::Constant *EmitIvarOffsetVar(const ObjCInterfaceDecl *ID, |
Fariborz Jahanian | 2fa5a27 | 2009-01-28 01:36:42 +0000 | [diff] [blame] | 1303 | const ObjCIvarDecl *Ivar, |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 1304 | unsigned long int offset); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1305 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1306 | /// GetOrEmitProtocol - Get the protocol object for the given |
| 1307 | /// declaration, emitting it if necessary. The return value has type |
| 1308 | /// ProtocolPtrTy. |
| 1309 | virtual llvm::Constant *GetOrEmitProtocol(const ObjCProtocolDecl *PD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1310 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1311 | /// GetOrEmitProtocolRef - Get a forward reference to the protocol |
| 1312 | /// object for the given declaration, emitting it if needed. These |
| 1313 | /// forward references will be filled in with empty bodies if no |
| 1314 | /// definition is seen. The return value has type ProtocolPtrTy. |
| 1315 | virtual llvm::Constant *GetOrEmitProtocolRef(const ObjCProtocolDecl *PD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1316 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1317 | /// EmitProtocolList - Generate the list of referenced |
| 1318 | /// protocols. The return value has type ProtocolListPtrTy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1319 | llvm::Constant *EmitProtocolList(llvm::Twine Name, |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1320 | ObjCProtocolDecl::protocol_iterator begin, |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 1321 | ObjCProtocolDecl::protocol_iterator end); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1322 | |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 1323 | CodeGen::RValue EmitMessageSend(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1324 | ReturnValueSlot Return, |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 1325 | QualType ResultType, |
| 1326 | Selector Sel, |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 1327 | llvm::Value *Receiver, |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 1328 | QualType Arg0Ty, |
| 1329 | bool IsSuper, |
| 1330 | const CallArgList &CallArgs); |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 1331 | |
| 1332 | /// GetClassGlobal - Return the global variable for the Objective-C |
| 1333 | /// class of the given name. |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 1334 | llvm::GlobalVariable *GetClassGlobal(const std::string &Name); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1335 | |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 1336 | /// EmitClassRef - Return a Value*, of type ObjCTypes.ClassPtrTy, |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 1337 | /// for the given class reference. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1338 | llvm::Value *EmitClassRef(CGBuilderTy &Builder, |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 1339 | const ObjCInterfaceDecl *ID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1340 | |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 1341 | /// EmitSuperClassRef - Return a Value*, of type ObjCTypes.ClassPtrTy, |
| 1342 | /// for the given super class reference. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1343 | llvm::Value *EmitSuperClassRef(CGBuilderTy &Builder, |
| 1344 | const ObjCInterfaceDecl *ID); |
| 1345 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 1346 | /// EmitMetaClassRef - Return a Value * of the address of _class_t |
| 1347 | /// meta-data |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1348 | llvm::Value *EmitMetaClassRef(CGBuilderTy &Builder, |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 1349 | const ObjCInterfaceDecl *ID); |
| 1350 | |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 1351 | /// ObjCIvarOffsetVariable - Returns the ivar offset variable for |
| 1352 | /// the given ivar. |
| 1353 | /// |
Daniel Dunbar | 5e88bea | 2009-04-19 00:31:15 +0000 | [diff] [blame] | 1354 | llvm::GlobalVariable * ObjCIvarOffsetVariable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1355 | const ObjCInterfaceDecl *ID, |
| 1356 | const ObjCIvarDecl *Ivar); |
| 1357 | |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 1358 | /// EmitSelector - Return a Value*, of type ObjCTypes.SelectorPtrTy, |
| 1359 | /// for the given selector. |
Fariborz Jahanian | 03b2960 | 2010-06-17 19:56:20 +0000 | [diff] [blame] | 1360 | llvm::Value *EmitSelector(CGBuilderTy &Builder, Selector Sel, |
| 1361 | bool lval=false); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 1362 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1363 | /// GetInterfaceEHType - Get the cached ehtype for the given Objective-C |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 1364 | /// interface. The return value has type EHTypePtrTy. |
John McCall | 5a18039 | 2010-07-24 00:37:23 +0000 | [diff] [blame] | 1365 | llvm::Constant *GetInterfaceEHType(const ObjCInterfaceDecl *ID, |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1366 | bool ForDefinition); |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 1367 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1368 | const char *getMetaclassSymbolPrefix() const { |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 1369 | return "OBJC_METACLASS_$_"; |
| 1370 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1371 | |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 1372 | const char *getClassSymbolPrefix() const { |
| 1373 | return "OBJC_CLASS_$_"; |
| 1374 | } |
| 1375 | |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 1376 | void GetClassSizeInfo(const ObjCImplementationDecl *OID, |
Daniel Dunbar | b02532a | 2009-04-19 23:41:48 +0000 | [diff] [blame] | 1377 | uint32_t &InstanceStart, |
| 1378 | uint32_t &InstanceSize); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1379 | |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1380 | // Shamelessly stolen from Analysis/CFRefCount.cpp |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 1381 | Selector GetNullarySelector(const char* name) const { |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1382 | IdentifierInfo* II = &CGM.getContext().Idents.get(name); |
| 1383 | return CGM.getContext().Selectors.getSelector(0, &II); |
| 1384 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1385 | |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 1386 | Selector GetUnarySelector(const char* name) const { |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1387 | IdentifierInfo* II = &CGM.getContext().Idents.get(name); |
| 1388 | return CGM.getContext().Selectors.getSelector(1, &II); |
| 1389 | } |
Daniel Dunbar | b02532a | 2009-04-19 23:41:48 +0000 | [diff] [blame] | 1390 | |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 1391 | /// ImplementationIsNonLazy - Check whether the given category or |
| 1392 | /// class implementation is "non-lazy". |
Fariborz Jahanian | ecfbdcb | 2009-05-21 01:03:45 +0000 | [diff] [blame] | 1393 | bool ImplementationIsNonLazy(const ObjCImplDecl *OD) const; |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 1394 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1395 | public: |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 1396 | CGObjCNonFragileABIMac(CodeGen::CodeGenModule &cgm); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1397 | // FIXME. All stubs for now! |
| 1398 | virtual llvm::Function *ModuleInitFunction(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1399 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1400 | virtual CodeGen::RValue GenerateMessageSend(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1401 | ReturnValueSlot Return, |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1402 | QualType ResultType, |
| 1403 | Selector Sel, |
| 1404 | llvm::Value *Receiver, |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1405 | const CallArgList &CallArgs, |
David Chisnall | c6cd5fd | 2010-04-28 19:33:36 +0000 | [diff] [blame] | 1406 | const ObjCInterfaceDecl *Class, |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1407 | const ObjCMethodDecl *Method); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1408 | |
| 1409 | virtual CodeGen::RValue |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1410 | GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1411 | ReturnValueSlot Return, |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1412 | QualType ResultType, |
| 1413 | Selector Sel, |
| 1414 | const ObjCInterfaceDecl *Class, |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 1415 | bool isCategoryImpl, |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1416 | llvm::Value *Receiver, |
| 1417 | bool IsClassMessage, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1418 | const CallArgList &CallArgs, |
| 1419 | const ObjCMethodDecl *Method); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1420 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1421 | virtual llvm::Value *GetClass(CGBuilderTy &Builder, |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 1422 | const ObjCInterfaceDecl *ID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1423 | |
Fariborz Jahanian | 03b2960 | 2010-06-17 19:56:20 +0000 | [diff] [blame] | 1424 | virtual llvm::Value *GetSelector(CGBuilderTy &Builder, Selector Sel, |
| 1425 | bool lvalue = false) |
| 1426 | { return EmitSelector(Builder, Sel, lvalue); } |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1427 | |
| 1428 | /// The NeXT/Apple runtimes do not support typed selectors; just emit an |
| 1429 | /// untyped one. |
| 1430 | virtual llvm::Value *GetSelector(CGBuilderTy &Builder, |
| 1431 | const ObjCMethodDecl *Method) |
| 1432 | { return EmitSelector(Builder, Method->getSelector()); } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1433 | |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 1434 | virtual void GenerateCategory(const ObjCCategoryImplDecl *CMD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1435 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1436 | virtual void GenerateClass(const ObjCImplementationDecl *ClassDecl); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1437 | virtual llvm::Value *GenerateProtocolRef(CGBuilderTy &Builder, |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 1438 | const ObjCProtocolDecl *PD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1439 | |
John McCall | 5a18039 | 2010-07-24 00:37:23 +0000 | [diff] [blame] | 1440 | virtual llvm::Constant *GetEHType(QualType T); |
| 1441 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1442 | virtual llvm::Constant *GetPropertyGetFunction() { |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 1443 | return ObjCTypes.getGetPropertyFn(); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1444 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1445 | virtual llvm::Constant *GetPropertySetFunction() { |
| 1446 | return ObjCTypes.getSetPropertyFn(); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1447 | } |
Fariborz Jahanian | 6cc5906 | 2010-04-12 18:18:10 +0000 | [diff] [blame] | 1448 | |
| 1449 | virtual llvm::Constant *GetCopyStructFunction() { |
| 1450 | return ObjCTypes.getCopyStructFn(); |
| 1451 | } |
| 1452 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 1453 | virtual llvm::Constant *EnumerationMutationFunction() { |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 1454 | return ObjCTypes.getEnumerationMutationFn(); |
Daniel Dunbar | 28ed084 | 2009-02-16 18:48:45 +0000 | [diff] [blame] | 1455 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1456 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 1457 | virtual void EmitTryStmt(CodeGen::CodeGenFunction &CGF, |
| 1458 | const ObjCAtTryStmt &S); |
| 1459 | virtual void EmitSynchronizedStmt(CodeGen::CodeGenFunction &CGF, |
| 1460 | const ObjCAtSynchronizedStmt &S); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1461 | virtual void EmitThrowStmt(CodeGen::CodeGenFunction &CGF, |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 1462 | const ObjCAtThrowStmt &S); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1463 | virtual llvm::Value * EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 1464 | llvm::Value *AddrWeakObj); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1465 | virtual void EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 1466 | llvm::Value *src, llvm::Value *dst); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1467 | virtual void EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 021a7a6 | 2010-07-20 20:30:03 +0000 | [diff] [blame] | 1468 | llvm::Value *src, llvm::Value *dest, |
| 1469 | bool threadlocal = false); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1470 | virtual void EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 1471 | llvm::Value *src, llvm::Value *dest, |
| 1472 | llvm::Value *ivarOffset); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1473 | virtual void EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 1474 | llvm::Value *src, llvm::Value *dest); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 1475 | virtual void EmitGCMemmoveCollectable(CodeGen::CodeGenFunction &CGF, |
| 1476 | llvm::Value *dest, llvm::Value *src, |
Fariborz Jahanian | 55bcace | 2010-06-15 22:44:06 +0000 | [diff] [blame] | 1477 | llvm::Value *size); |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 1478 | virtual LValue EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF, |
| 1479 | QualType ObjectTy, |
| 1480 | llvm::Value *BaseValue, |
| 1481 | const ObjCIvarDecl *Ivar, |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 1482 | unsigned CVRQualifiers); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1483 | virtual llvm::Value *EmitIvarOffset(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 2a03192 | 2009-04-22 05:08:15 +0000 | [diff] [blame] | 1484 | const ObjCInterfaceDecl *Interface, |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1485 | const ObjCIvarDecl *Ivar); |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1486 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1487 | |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1488 | } // end anonymous namespace |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1489 | |
| 1490 | /* *** Helper Functions *** */ |
| 1491 | |
| 1492 | /// getConstantGEP() - Help routine to construct simple GEPs. |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 1493 | static llvm::Constant *getConstantGEP(llvm::LLVMContext &VMContext, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1494 | llvm::Constant *C, |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1495 | unsigned idx0, |
| 1496 | unsigned idx1) { |
| 1497 | llvm::Value *Idxs[] = { |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1498 | llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext), idx0), |
| 1499 | llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext), idx1) |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1500 | }; |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1501 | return llvm::ConstantExpr::getGetElementPtr(C, Idxs, 2); |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1502 | } |
| 1503 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1504 | /// hasObjCExceptionAttribute - Return true if this class or any super |
| 1505 | /// class has the __objc_exception__ attribute. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1506 | static bool hasObjCExceptionAttribute(ASTContext &Context, |
Douglas Gregor | 68584ed | 2009-06-18 16:11:24 +0000 | [diff] [blame] | 1507 | const ObjCInterfaceDecl *OID) { |
Argyrios Kyrtzidis | 40b598e | 2009-06-30 02:34:44 +0000 | [diff] [blame] | 1508 | if (OID->hasAttr<ObjCExceptionAttr>()) |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1509 | return true; |
| 1510 | if (const ObjCInterfaceDecl *Super = OID->getSuperClass()) |
Douglas Gregor | 68584ed | 2009-06-18 16:11:24 +0000 | [diff] [blame] | 1511 | return hasObjCExceptionAttribute(Context, Super); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1512 | return false; |
| 1513 | } |
| 1514 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1515 | /* *** CGObjCMac Public Interface *** */ |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1516 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1517 | CGObjCMac::CGObjCMac(CodeGen::CodeGenModule &cgm) : CGObjCCommonMac(cgm), |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1518 | ObjCTypes(cgm) { |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1519 | ObjCABI = 1; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1520 | EmitImageInfo(); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1521 | } |
| 1522 | |
Daniel Dunbar | ddb2a3d | 2008-08-16 00:25:02 +0000 | [diff] [blame] | 1523 | /// GetClass - Return a reference to the class for the given interface |
| 1524 | /// decl. |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 1525 | llvm::Value *CGObjCMac::GetClass(CGBuilderTy &Builder, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1526 | const ObjCInterfaceDecl *ID) { |
| 1527 | return EmitClassRef(Builder, ID); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1528 | } |
| 1529 | |
| 1530 | /// GetSelector - Return the pointer to the unique'd string for this selector. |
Fariborz Jahanian | 03b2960 | 2010-06-17 19:56:20 +0000 | [diff] [blame] | 1531 | llvm::Value *CGObjCMac::GetSelector(CGBuilderTy &Builder, Selector Sel, |
| 1532 | bool lval) { |
| 1533 | return EmitSelector(Builder, Sel, lval); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1534 | } |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1535 | llvm::Value *CGObjCMac::GetSelector(CGBuilderTy &Builder, const ObjCMethodDecl |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1536 | *Method) { |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1537 | return EmitSelector(Builder, Method->getSelector()); |
| 1538 | } |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1539 | |
John McCall | 5a18039 | 2010-07-24 00:37:23 +0000 | [diff] [blame] | 1540 | llvm::Constant *CGObjCMac::GetEHType(QualType T) { |
| 1541 | llvm_unreachable("asking for catch type for ObjC type in fragile runtime"); |
| 1542 | return 0; |
| 1543 | } |
| 1544 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1545 | /// Generate a constant CFString object. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1546 | /* |
| 1547 | struct __builtin_CFString { |
| 1548 | const int *isa; // point to __CFConstantStringClassReference |
| 1549 | int flags; |
| 1550 | const char *str; |
| 1551 | long length; |
| 1552 | }; |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1553 | */ |
| 1554 | |
Fariborz Jahanian | 33e982b | 2010-04-22 20:26:39 +0000 | [diff] [blame] | 1555 | /// or Generate a constant NSString object. |
| 1556 | /* |
| 1557 | struct __builtin_NSString { |
| 1558 | const int *isa; // point to __NSConstantStringClassReference |
| 1559 | const char *str; |
| 1560 | unsigned int length; |
| 1561 | }; |
| 1562 | */ |
| 1563 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1564 | llvm::Constant *CGObjCCommonMac::GenerateConstantString( |
David Chisnall | 0d13f6f | 2010-01-23 02:40:42 +0000 | [diff] [blame] | 1565 | const StringLiteral *SL) { |
Fariborz Jahanian | 33e982b | 2010-04-22 20:26:39 +0000 | [diff] [blame] | 1566 | return (CGM.getLangOptions().NoConstantCFStrings == 0 ? |
| 1567 | CGM.GetAddrOfConstantCFString(SL) : |
| 1568 | CGM.GetAddrOfConstantNSString(SL)); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1569 | } |
| 1570 | |
| 1571 | /// Generates a message send where the super is the receiver. This is |
| 1572 | /// a message send to self with special delivery semantics indicating |
| 1573 | /// which class's method should be called. |
Daniel Dunbar | 8f2926b | 2008-08-23 03:46:30 +0000 | [diff] [blame] | 1574 | CodeGen::RValue |
| 1575 | CGObjCMac::GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1576 | ReturnValueSlot Return, |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 1577 | QualType ResultType, |
| 1578 | Selector Sel, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1579 | const ObjCInterfaceDecl *Class, |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 1580 | bool isCategoryImpl, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1581 | llvm::Value *Receiver, |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1582 | bool IsClassMessage, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1583 | const CodeGen::CallArgList &CallArgs, |
| 1584 | const ObjCMethodDecl *Method) { |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 1585 | // Create and init a super structure; this is a (receiver, class) |
| 1586 | // pair we will pass to objc_msgSendSuper. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1587 | llvm::Value *ObjCSuper = |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 1588 | CGF.Builder.CreateAlloca(ObjCTypes.SuperTy, 0, "objc_super"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1589 | llvm::Value *ReceiverAsObject = |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 1590 | CGF.Builder.CreateBitCast(Receiver, ObjCTypes.ObjectPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1591 | CGF.Builder.CreateStore(ReceiverAsObject, |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 1592 | CGF.Builder.CreateStructGEP(ObjCSuper, 0)); |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 1593 | |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1594 | // If this is a class message the metaclass is passed as the target. |
| 1595 | llvm::Value *Target; |
| 1596 | if (IsClassMessage) { |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 1597 | if (isCategoryImpl) { |
| 1598 | // Message sent to 'super' in a class method defined in a category |
| 1599 | // implementation requires an odd treatment. |
| 1600 | // If we are in a class method, we must retrieve the |
| 1601 | // _metaclass_ for the current class, pointed at by |
| 1602 | // the class's "isa" pointer. The following assumes that |
| 1603 | // isa" is the first ivar in a class (which it must be). |
| 1604 | Target = EmitClassRef(CGF.Builder, Class->getSuperClass()); |
| 1605 | Target = CGF.Builder.CreateStructGEP(Target, 0); |
| 1606 | Target = CGF.Builder.CreateLoad(Target); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 1607 | } else { |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 1608 | llvm::Value *MetaClassPtr = EmitMetaClassRef(Class); |
| 1609 | llvm::Value *SuperPtr = CGF.Builder.CreateStructGEP(MetaClassPtr, 1); |
| 1610 | llvm::Value *Super = CGF.Builder.CreateLoad(SuperPtr); |
| 1611 | Target = Super; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1612 | } |
Fariborz Jahanian | 182f268 | 2009-11-14 02:18:31 +0000 | [diff] [blame] | 1613 | } |
| 1614 | else if (isCategoryImpl) |
| 1615 | Target = EmitClassRef(CGF.Builder, Class->getSuperClass()); |
| 1616 | else { |
Fariborz Jahanian | b0069ee | 2009-11-12 20:14:24 +0000 | [diff] [blame] | 1617 | llvm::Value *ClassPtr = EmitSuperClassRef(Class); |
| 1618 | ClassPtr = CGF.Builder.CreateStructGEP(ClassPtr, 1); |
| 1619 | Target = CGF.Builder.CreateLoad(ClassPtr); |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1620 | } |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 1621 | // FIXME: We shouldn't need to do this cast, rectify the ASTContext and |
| 1622 | // ObjCTypes types. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1623 | const llvm::Type *ClassTy = |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1624 | CGM.getTypes().ConvertType(CGF.getContext().getObjCClassType()); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1625 | Target = CGF.Builder.CreateBitCast(Target, ClassTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1626 | CGF.Builder.CreateStore(Target, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1627 | CGF.Builder.CreateStructGEP(ObjCSuper, 1)); |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1628 | return EmitLegacyMessageSend(CGF, Return, ResultType, |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1629 | EmitSelector(CGF.Builder, Sel), |
| 1630 | ObjCSuper, ObjCTypes.SuperPtrCTy, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1631 | true, CallArgs, Method, ObjCTypes); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1632 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1633 | |
| 1634 | /// Generate code for a message send expression. |
Daniel Dunbar | 8f2926b | 2008-08-23 03:46:30 +0000 | [diff] [blame] | 1635 | CodeGen::RValue CGObjCMac::GenerateMessageSend(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1636 | ReturnValueSlot Return, |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 1637 | QualType ResultType, |
| 1638 | Selector Sel, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1639 | llvm::Value *Receiver, |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1640 | const CallArgList &CallArgs, |
David Chisnall | c6cd5fd | 2010-04-28 19:33:36 +0000 | [diff] [blame] | 1641 | const ObjCInterfaceDecl *Class, |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1642 | const ObjCMethodDecl *Method) { |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1643 | return EmitLegacyMessageSend(CGF, Return, ResultType, |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1644 | EmitSelector(CGF.Builder, Sel), |
| 1645 | Receiver, CGF.getContext().getObjCIdType(), |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1646 | false, CallArgs, Method, ObjCTypes); |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 1647 | } |
| 1648 | |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1649 | CodeGen::RValue |
| 1650 | CGObjCCommonMac::EmitLegacyMessageSend(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1651 | ReturnValueSlot Return, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1652 | QualType ResultType, |
| 1653 | llvm::Value *Sel, |
| 1654 | llvm::Value *Arg0, |
| 1655 | QualType Arg0Ty, |
| 1656 | bool IsSuper, |
| 1657 | const CallArgList &CallArgs, |
| 1658 | const ObjCMethodDecl *Method, |
| 1659 | const ObjCCommonTypesHelper &ObjCTypes) { |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1660 | CallArgList ActualArgs; |
Fariborz Jahanian | d019d96 | 2009-04-24 21:07:43 +0000 | [diff] [blame] | 1661 | if (!IsSuper) |
| 1662 | Arg0 = CGF.Builder.CreateBitCast(Arg0, ObjCTypes.ObjectPtrTy, "tmp"); |
Daniel Dunbar | 46f45b9 | 2008-09-09 01:06:48 +0000 | [diff] [blame] | 1663 | ActualArgs.push_back(std::make_pair(RValue::get(Arg0), Arg0Ty)); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1664 | ActualArgs.push_back(std::make_pair(RValue::get(Sel), |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1665 | CGF.getContext().getObjCSelType())); |
| 1666 | ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1667 | |
Daniel Dunbar | 541b63b | 2009-02-02 23:23:47 +0000 | [diff] [blame] | 1668 | CodeGenTypes &Types = CGM.getTypes(); |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 1669 | const CGFunctionInfo &FnInfo = Types.getFunctionInfo(ResultType, ActualArgs, |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 1670 | FunctionType::ExtInfo()); |
Daniel Dunbar | 6793966 | 2009-09-17 04:01:40 +0000 | [diff] [blame] | 1671 | const llvm::FunctionType *FTy = |
| 1672 | Types.GetFunctionType(FnInfo, Method ? Method->isVariadic() : false); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1673 | |
Anders Carlsson | 7e70fb2 | 2010-06-21 20:59:55 +0000 | [diff] [blame] | 1674 | if (Method) |
| 1675 | assert(CGM.getContext().getCanonicalType(Method->getResultType()) == |
| 1676 | CGM.getContext().getCanonicalType(ResultType) && |
| 1677 | "Result type mismatch!"); |
| 1678 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1679 | llvm::Constant *Fn = NULL; |
Daniel Dunbar | dacf9dd | 2010-07-14 23:39:36 +0000 | [diff] [blame] | 1680 | if (CGM.ReturnTypeUsesSRet(FnInfo)) { |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1681 | Fn = (ObjCABI == 2) ? ObjCTypes.getSendStretFn2(IsSuper) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1682 | : ObjCTypes.getSendStretFn(IsSuper); |
Daniel Dunbar | dacf9dd | 2010-07-14 23:39:36 +0000 | [diff] [blame] | 1683 | } else if (CGM.ReturnTypeUsesFPRet(ResultType)) { |
| 1684 | Fn = (ObjCABI == 2) ? ObjCTypes.getSendFpretFn2(IsSuper) |
| 1685 | : ObjCTypes.getSendFpretFn(IsSuper); |
Daniel Dunbar | 5669e57 | 2008-10-17 03:24:53 +0000 | [diff] [blame] | 1686 | } else { |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1687 | Fn = (ObjCABI == 2) ? ObjCTypes.getSendFn2(IsSuper) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1688 | : ObjCTypes.getSendFn(IsSuper); |
Daniel Dunbar | 5669e57 | 2008-10-17 03:24:53 +0000 | [diff] [blame] | 1689 | } |
Daniel Dunbar | dacf9dd | 2010-07-14 23:39:36 +0000 | [diff] [blame] | 1690 | Fn = llvm::ConstantExpr::getBitCast(Fn, llvm::PointerType::getUnqual(FTy)); |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 1691 | return CGF.EmitCall(FnInfo, Fn, Return, ActualArgs); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1692 | } |
| 1693 | |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 1694 | static Qualifiers::GC GetGCAttrTypeForType(ASTContext &Ctx, QualType FQT) { |
| 1695 | if (FQT.isObjCGCStrong()) |
| 1696 | return Qualifiers::Strong; |
| 1697 | |
| 1698 | if (FQT.isObjCGCWeak()) |
| 1699 | return Qualifiers::Weak; |
| 1700 | |
| 1701 | if (FQT->isObjCObjectPointerType() || FQT->isBlockPointerType()) |
| 1702 | return Qualifiers::Strong; |
| 1703 | |
| 1704 | if (const PointerType *PT = FQT->getAs<PointerType>()) |
| 1705 | return GetGCAttrTypeForType(Ctx, PT->getPointeeType()); |
| 1706 | |
| 1707 | return Qualifiers::GCNone; |
| 1708 | } |
| 1709 | |
Fariborz Jahanian | 89ecd41 | 2010-08-04 16:57:49 +0000 | [diff] [blame] | 1710 | llvm::Constant *CGObjCCommonMac::GCBlockLayout(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 44034db | 2010-08-04 18:44:59 +0000 | [diff] [blame] | 1711 | const llvm::SmallVectorImpl<const BlockDeclRefExpr *> &DeclRefs) { |
| 1712 | llvm::Constant *NullPtr = |
| 1713 | llvm::Constant::getNullValue(llvm::Type::getInt8PtrTy(VMContext)); |
| 1714 | if (DeclRefs.empty()) |
| 1715 | return NullPtr; |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 1716 | SkipIvars.clear(); |
| 1717 | IvarsInfo.clear(); |
| 1718 | unsigned WordSizeInBits = CGM.getContext().Target.getPointerWidth(0); |
| 1719 | unsigned ByteSizeInBits = CGM.getContext().Target.getCharWidth(); |
| 1720 | |
| 1721 | for (size_t i = 0; i < DeclRefs.size(); ++i) { |
| 1722 | const BlockDeclRefExpr *BDRE = DeclRefs[i]; |
| 1723 | const ValueDecl *VD = BDRE->getDecl(); |
| 1724 | CharUnits Offset = CGF.BlockDecls[VD]; |
| 1725 | uint64_t FieldOffset = Offset.getQuantity(); |
| 1726 | QualType Ty = VD->getType(); |
| 1727 | assert(!Ty->isArrayType() && |
| 1728 | "Array block variable should have been caught"); |
| 1729 | if (Ty->isRecordType() || Ty->isUnionType()) |
| 1730 | assert(false && "Aggregate block variable layout NYI"); |
| 1731 | Qualifiers::GC GCAttr = GetGCAttrTypeForType(CGM.getContext(), Ty); |
| 1732 | unsigned FieldSize = CGM.getContext().getTypeSize(Ty); |
| 1733 | // __block variables are passed by their descriptior address. So, size |
| 1734 | // must reflect this. |
| 1735 | if (BDRE->isByRef()) |
| 1736 | FieldSize = WordSizeInBits; |
| 1737 | if (GCAttr == Qualifiers::Strong || BDRE->isByRef()) |
| 1738 | IvarsInfo.push_back(GC_IVAR(FieldOffset, |
| 1739 | FieldSize / WordSizeInBits)); |
| 1740 | else if (GCAttr == Qualifiers::GCNone || GCAttr == Qualifiers::Weak) |
| 1741 | SkipIvars.push_back(GC_IVAR(FieldOffset, |
| 1742 | FieldSize / ByteSizeInBits)); |
| 1743 | } |
| 1744 | |
| 1745 | if (IvarsInfo.empty()) |
| 1746 | return NullPtr; |
| 1747 | |
| 1748 | std::string BitMap; |
Fariborz Jahanian | b8fd2eb | 2010-08-05 00:19:48 +0000 | [diff] [blame^] | 1749 | llvm::Constant *C = BuildIvarLayoutBitmap(BitMap); |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 1750 | if (CGM.getLangOptions().ObjCGCBitmapPrint) { |
| 1751 | printf("\n block variable layout for block: "); |
| 1752 | const unsigned char *s = (unsigned char*)BitMap.c_str(); |
| 1753 | for (unsigned i = 0; i < BitMap.size(); i++) |
| 1754 | if (!(s[i] & 0xf0)) |
| 1755 | printf("0x0%x%s", s[i], s[i] != 0 ? ", " : ""); |
| 1756 | else |
| 1757 | printf("0x%x%s", s[i], s[i] != 0 ? ", " : ""); |
| 1758 | printf("\n"); |
| 1759 | } |
| 1760 | |
| 1761 | return C; |
Fariborz Jahanian | 89ecd41 | 2010-08-04 16:57:49 +0000 | [diff] [blame] | 1762 | } |
| 1763 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1764 | llvm::Value *CGObjCMac::GenerateProtocolRef(CGBuilderTy &Builder, |
Daniel Dunbar | af2f62c | 2008-08-13 00:59:25 +0000 | [diff] [blame] | 1765 | const ObjCProtocolDecl *PD) { |
Daniel Dunbar | c67876d | 2008-09-04 04:33:15 +0000 | [diff] [blame] | 1766 | // FIXME: I don't understand why gcc generates this, or where it is |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 1767 | // resolved. Investigate. Its also wasteful to look this up over and over. |
Daniel Dunbar | c67876d | 2008-09-04 04:33:15 +0000 | [diff] [blame] | 1768 | LazySymbols.insert(&CGM.getContext().Idents.get("Protocol")); |
| 1769 | |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1770 | return llvm::ConstantExpr::getBitCast(GetProtocolRef(PD), |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1771 | ObjCTypes.ExternalProtocolPtrTy); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1772 | } |
| 1773 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1774 | void CGObjCCommonMac::GenerateProtocol(const ObjCProtocolDecl *PD) { |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 1775 | // FIXME: We shouldn't need this, the protocol decl should contain enough |
| 1776 | // information to tell us whether this was a declaration or a definition. |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1777 | DefinedProtocols.insert(PD->getIdentifier()); |
| 1778 | |
| 1779 | // If we have generated a forward reference to this protocol, emit |
| 1780 | // it now. Otherwise do nothing, the protocol objects are lazily |
| 1781 | // emitted. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1782 | if (Protocols.count(PD->getIdentifier())) |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1783 | GetOrEmitProtocol(PD); |
| 1784 | } |
| 1785 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1786 | llvm::Constant *CGObjCCommonMac::GetProtocolRef(const ObjCProtocolDecl *PD) { |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1787 | if (DefinedProtocols.count(PD->getIdentifier())) |
| 1788 | return GetOrEmitProtocol(PD); |
| 1789 | return GetOrEmitProtocolRef(PD); |
| 1790 | } |
| 1791 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1792 | /* |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1793 | // APPLE LOCAL radar 4585769 - Objective-C 1.0 extensions |
| 1794 | struct _objc_protocol { |
| 1795 | struct _objc_protocol_extension *isa; |
| 1796 | char *protocol_name; |
| 1797 | struct _objc_protocol_list *protocol_list; |
| 1798 | struct _objc__method_prototype_list *instance_methods; |
| 1799 | struct _objc__method_prototype_list *class_methods |
| 1800 | }; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1801 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1802 | See EmitProtocolExtension(). |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1803 | */ |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1804 | llvm::Constant *CGObjCMac::GetOrEmitProtocol(const ObjCProtocolDecl *PD) { |
| 1805 | llvm::GlobalVariable *&Entry = Protocols[PD->getIdentifier()]; |
| 1806 | |
| 1807 | // Early exit if a defining object has already been generated. |
| 1808 | if (Entry && Entry->hasInitializer()) |
| 1809 | return Entry; |
| 1810 | |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 1811 | // FIXME: I don't understand why gcc generates this, or where it is |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 1812 | // resolved. Investigate. Its also wasteful to look this up over and over. |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 1813 | LazySymbols.insert(&CGM.getContext().Idents.get("Protocol")); |
| 1814 | |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1815 | // Construct method lists. |
| 1816 | std::vector<llvm::Constant*> InstanceMethods, ClassMethods; |
| 1817 | std::vector<llvm::Constant*> OptInstanceMethods, OptClassMethods; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1818 | for (ObjCProtocolDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 1819 | i = PD->instmeth_begin(), e = PD->instmeth_end(); i != e; ++i) { |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1820 | ObjCMethodDecl *MD = *i; |
| 1821 | llvm::Constant *C = GetMethodDescriptionConstant(MD); |
| 1822 | if (MD->getImplementationControl() == ObjCMethodDecl::Optional) { |
| 1823 | OptInstanceMethods.push_back(C); |
| 1824 | } else { |
| 1825 | InstanceMethods.push_back(C); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1826 | } |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1827 | } |
| 1828 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1829 | for (ObjCProtocolDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 1830 | i = PD->classmeth_begin(), e = PD->classmeth_end(); i != e; ++i) { |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1831 | ObjCMethodDecl *MD = *i; |
| 1832 | llvm::Constant *C = GetMethodDescriptionConstant(MD); |
| 1833 | if (MD->getImplementationControl() == ObjCMethodDecl::Optional) { |
| 1834 | OptClassMethods.push_back(C); |
| 1835 | } else { |
| 1836 | ClassMethods.push_back(C); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1837 | } |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1838 | } |
| 1839 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1840 | std::vector<llvm::Constant*> Values(5); |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1841 | Values[0] = EmitProtocolExtension(PD, OptInstanceMethods, OptClassMethods); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1842 | Values[1] = GetClassName(PD->getIdentifier()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1843 | Values[2] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1844 | EmitProtocolList("\01L_OBJC_PROTOCOL_REFS_" + PD->getName(), |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1845 | PD->protocol_begin(), |
| 1846 | PD->protocol_end()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1847 | Values[3] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1848 | EmitMethodDescList("\01L_OBJC_PROTOCOL_INSTANCE_METHODS_" + PD->getName(), |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1849 | "__OBJC,__cat_inst_meth,regular,no_dead_strip", |
| 1850 | InstanceMethods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1851 | Values[4] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1852 | EmitMethodDescList("\01L_OBJC_PROTOCOL_CLASS_METHODS_" + PD->getName(), |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1853 | "__OBJC,__cat_cls_meth,regular,no_dead_strip", |
| 1854 | ClassMethods); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 1855 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ProtocolTy, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1856 | Values); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1857 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1858 | if (Entry) { |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1859 | // Already created, fix the linkage and update the initializer. |
| 1860 | Entry->setLinkage(llvm::GlobalValue::InternalLinkage); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1861 | Entry->setInitializer(Init); |
| 1862 | } else { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1863 | Entry = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 1864 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ProtocolTy, false, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1865 | llvm::GlobalValue::InternalLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1866 | Init, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1867 | "\01L_OBJC_PROTOCOL_" + PD->getName()); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1868 | Entry->setSection("__OBJC,__protocol,regular,no_dead_strip"); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1869 | // FIXME: Is this necessary? Why only for protocol? |
| 1870 | Entry->setAlignment(4); |
| 1871 | } |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 1872 | CGM.AddUsedGlobal(Entry); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1873 | |
| 1874 | return Entry; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1875 | } |
| 1876 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1877 | llvm::Constant *CGObjCMac::GetOrEmitProtocolRef(const ObjCProtocolDecl *PD) { |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1878 | llvm::GlobalVariable *&Entry = Protocols[PD->getIdentifier()]; |
| 1879 | |
| 1880 | if (!Entry) { |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1881 | // We use the initializer as a marker of whether this is a forward |
| 1882 | // reference or not. At module finalization we add the empty |
| 1883 | // contents for protocols which were referenced but never defined. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1884 | Entry = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 1885 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ProtocolTy, false, |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1886 | llvm::GlobalValue::ExternalLinkage, |
| 1887 | 0, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1888 | "\01L_OBJC_PROTOCOL_" + PD->getName()); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1889 | Entry->setSection("__OBJC,__protocol,regular,no_dead_strip"); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1890 | // FIXME: Is this necessary? Why only for protocol? |
| 1891 | Entry->setAlignment(4); |
| 1892 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1893 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1894 | return Entry; |
| 1895 | } |
| 1896 | |
| 1897 | /* |
| 1898 | struct _objc_protocol_extension { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1899 | uint32_t size; |
| 1900 | struct objc_method_description_list *optional_instance_methods; |
| 1901 | struct objc_method_description_list *optional_class_methods; |
| 1902 | struct objc_property_list *instance_properties; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1903 | }; |
| 1904 | */ |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1905 | llvm::Constant * |
| 1906 | CGObjCMac::EmitProtocolExtension(const ObjCProtocolDecl *PD, |
| 1907 | const ConstantVector &OptInstanceMethods, |
| 1908 | const ConstantVector &OptClassMethods) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1909 | uint64_t Size = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 1910 | CGM.getTargetData().getTypeAllocSize(ObjCTypes.ProtocolExtensionTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1911 | std::vector<llvm::Constant*> Values(4); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 1912 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1913 | Values[1] = |
| 1914 | EmitMethodDescList("\01L_OBJC_PROTOCOL_INSTANCE_METHODS_OPT_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1915 | + PD->getName(), |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1916 | "__OBJC,__cat_inst_meth,regular,no_dead_strip", |
| 1917 | OptInstanceMethods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1918 | Values[2] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1919 | EmitMethodDescList("\01L_OBJC_PROTOCOL_CLASS_METHODS_OPT_" + PD->getName(), |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1920 | "__OBJC,__cat_cls_meth,regular,no_dead_strip", |
| 1921 | OptClassMethods); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1922 | Values[3] = EmitPropertyList("\01L_OBJC_$_PROP_PROTO_LIST_" + PD->getName(), |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 1923 | 0, PD, ObjCTypes); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1924 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1925 | // Return null if no extension bits are used. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1926 | if (Values[1]->isNullValue() && Values[2]->isNullValue() && |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1927 | Values[3]->isNullValue()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1928 | return llvm::Constant::getNullValue(ObjCTypes.ProtocolExtensionPtrTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1929 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1930 | llvm::Constant *Init = |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 1931 | llvm::ConstantStruct::get(ObjCTypes.ProtocolExtensionTy, Values); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1932 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 1933 | // No special section, but goes in llvm.used |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1934 | return CreateMetadataVar("\01L_OBJC_PROTOCOLEXT_" + PD->getName(), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1935 | Init, |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 1936 | 0, 0, true); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1937 | } |
| 1938 | |
| 1939 | /* |
| 1940 | struct objc_protocol_list { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1941 | struct objc_protocol_list *next; |
| 1942 | long count; |
| 1943 | Protocol *list[]; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1944 | }; |
| 1945 | */ |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1946 | llvm::Constant * |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1947 | CGObjCMac::EmitProtocolList(llvm::Twine Name, |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1948 | ObjCProtocolDecl::protocol_iterator begin, |
| 1949 | ObjCProtocolDecl::protocol_iterator end) { |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1950 | std::vector<llvm::Constant*> ProtocolRefs; |
| 1951 | |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1952 | for (; begin != end; ++begin) |
| 1953 | ProtocolRefs.push_back(GetProtocolRef(*begin)); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1954 | |
| 1955 | // Just return null for empty protocol lists |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1956 | if (ProtocolRefs.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1957 | return llvm::Constant::getNullValue(ObjCTypes.ProtocolListPtrTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1958 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1959 | // This list is null terminated. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1960 | ProtocolRefs.push_back(llvm::Constant::getNullValue(ObjCTypes.ProtocolPtrTy)); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1961 | |
| 1962 | std::vector<llvm::Constant*> Values(3); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1963 | // This field is only used by the runtime. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1964 | Values[0] = llvm::Constant::getNullValue(ObjCTypes.ProtocolListPtrTy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 1965 | Values[1] = llvm::ConstantInt::get(ObjCTypes.LongTy, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1966 | ProtocolRefs.size() - 1); |
| 1967 | Values[2] = |
| 1968 | llvm::ConstantArray::get(llvm::ArrayType::get(ObjCTypes.ProtocolPtrTy, |
| 1969 | ProtocolRefs.size()), |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1970 | ProtocolRefs); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1971 | |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 1972 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1973 | llvm::GlobalVariable *GV = |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 1974 | CreateMetadataVar(Name, Init, "__OBJC,__cat_cls_meth,regular,no_dead_strip", |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 1975 | 4, false); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1976 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.ProtocolListPtrTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1977 | } |
| 1978 | |
Fariborz Jahanian | 191dcd7 | 2009-12-12 21:26:21 +0000 | [diff] [blame] | 1979 | void CGObjCCommonMac::PushProtocolProperties(llvm::SmallPtrSet<const IdentifierInfo*, 16> &PropertySet, |
| 1980 | std::vector<llvm::Constant*> &Properties, |
| 1981 | const Decl *Container, |
| 1982 | const ObjCProtocolDecl *PROTO, |
| 1983 | const ObjCCommonTypesHelper &ObjCTypes) { |
| 1984 | std::vector<llvm::Constant*> Prop(2); |
| 1985 | for (ObjCProtocolDecl::protocol_iterator P = PROTO->protocol_begin(), |
| 1986 | E = PROTO->protocol_end(); P != E; ++P) |
| 1987 | PushProtocolProperties(PropertySet, Properties, Container, (*P), ObjCTypes); |
| 1988 | for (ObjCContainerDecl::prop_iterator I = PROTO->prop_begin(), |
| 1989 | E = PROTO->prop_end(); I != E; ++I) { |
| 1990 | const ObjCPropertyDecl *PD = *I; |
| 1991 | if (!PropertySet.insert(PD->getIdentifier())) |
| 1992 | continue; |
| 1993 | Prop[0] = GetPropertyName(PD->getIdentifier()); |
| 1994 | Prop[1] = GetPropertyTypeString(PD, Container); |
| 1995 | Properties.push_back(llvm::ConstantStruct::get(ObjCTypes.PropertyTy, Prop)); |
| 1996 | } |
| 1997 | } |
| 1998 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1999 | /* |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2000 | struct _objc_property { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2001 | const char * const name; |
| 2002 | const char * const attributes; |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2003 | }; |
| 2004 | |
| 2005 | struct _objc_property_list { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2006 | uint32_t entsize; // sizeof (struct _objc_property) |
| 2007 | uint32_t prop_count; |
| 2008 | struct _objc_property[prop_count]; |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2009 | }; |
| 2010 | */ |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2011 | llvm::Constant *CGObjCCommonMac::EmitPropertyList(llvm::Twine Name, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2012 | const Decl *Container, |
| 2013 | const ObjCContainerDecl *OCD, |
| 2014 | const ObjCCommonTypesHelper &ObjCTypes) { |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2015 | std::vector<llvm::Constant*> Properties, Prop(2); |
Fariborz Jahanian | 191dcd7 | 2009-12-12 21:26:21 +0000 | [diff] [blame] | 2016 | llvm::SmallPtrSet<const IdentifierInfo*, 16> PropertySet; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2017 | for (ObjCContainerDecl::prop_iterator I = OCD->prop_begin(), |
| 2018 | E = OCD->prop_end(); I != E; ++I) { |
Steve Naroff | 93983f8 | 2009-01-11 12:47:58 +0000 | [diff] [blame] | 2019 | const ObjCPropertyDecl *PD = *I; |
Fariborz Jahanian | 191dcd7 | 2009-12-12 21:26:21 +0000 | [diff] [blame] | 2020 | PropertySet.insert(PD->getIdentifier()); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2021 | Prop[0] = GetPropertyName(PD->getIdentifier()); |
Daniel Dunbar | c56f34a | 2008-08-28 04:38:10 +0000 | [diff] [blame] | 2022 | Prop[1] = GetPropertyTypeString(PD, Container); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2023 | Properties.push_back(llvm::ConstantStruct::get(ObjCTypes.PropertyTy, |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2024 | Prop)); |
| 2025 | } |
Fariborz Jahanian | 6afbdf5 | 2010-06-22 16:33:55 +0000 | [diff] [blame] | 2026 | if (const ObjCInterfaceDecl *OID = dyn_cast<ObjCInterfaceDecl>(OCD)) { |
Fariborz Jahanian | 191dcd7 | 2009-12-12 21:26:21 +0000 | [diff] [blame] | 2027 | for (ObjCInterfaceDecl::protocol_iterator P = OID->protocol_begin(), |
| 2028 | E = OID->protocol_end(); P != E; ++P) |
Fariborz Jahanian | 6afbdf5 | 2010-06-22 16:33:55 +0000 | [diff] [blame] | 2029 | PushProtocolProperties(PropertySet, Properties, Container, (*P), |
| 2030 | ObjCTypes); |
| 2031 | } |
| 2032 | else if (const ObjCCategoryDecl *CD = dyn_cast<ObjCCategoryDecl>(OCD)) { |
| 2033 | for (ObjCCategoryDecl::protocol_iterator P = CD->protocol_begin(), |
| 2034 | E = CD->protocol_end(); P != E; ++P) |
| 2035 | PushProtocolProperties(PropertySet, Properties, Container, (*P), |
| 2036 | ObjCTypes); |
| 2037 | } |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2038 | |
| 2039 | // Return null for empty list. |
| 2040 | if (Properties.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2041 | return llvm::Constant::getNullValue(ObjCTypes.PropertyListPtrTy); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2042 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2043 | unsigned PropertySize = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2044 | CGM.getTargetData().getTypeAllocSize(ObjCTypes.PropertyTy); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2045 | std::vector<llvm::Constant*> Values(3); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2046 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, PropertySize); |
| 2047 | Values[1] = llvm::ConstantInt::get(ObjCTypes.IntTy, Properties.size()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2048 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.PropertyTy, |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2049 | Properties.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 2050 | Values[2] = llvm::ConstantArray::get(AT, Properties); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 2051 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2052 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2053 | llvm::GlobalVariable *GV = |
| 2054 | CreateMetadataVar(Name, Init, |
| 2055 | (ObjCABI == 2) ? "__DATA, __objc_const" : |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2056 | "__OBJC,__property,regular,no_dead_strip", |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2057 | (ObjCABI == 2) ? 8 : 4, |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2058 | true); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2059 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.PropertyListPtrTy); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2060 | } |
| 2061 | |
| 2062 | /* |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 2063 | struct objc_method_description_list { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2064 | int count; |
| 2065 | struct objc_method_description list[]; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 2066 | }; |
| 2067 | */ |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2068 | llvm::Constant * |
| 2069 | CGObjCMac::GetMethodDescriptionConstant(const ObjCMethodDecl *MD) { |
| 2070 | std::vector<llvm::Constant*> Desc(2); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 2071 | Desc[0] = |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2072 | llvm::ConstantExpr::getBitCast(GetMethodVarName(MD->getSelector()), |
| 2073 | ObjCTypes.SelectorPtrTy); |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2074 | Desc[1] = GetMethodVarType(MD); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2075 | return llvm::ConstantStruct::get(ObjCTypes.MethodDescriptionTy, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2076 | Desc); |
| 2077 | } |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 2078 | |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2079 | llvm::Constant *CGObjCMac::EmitMethodDescList(llvm::Twine Name, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2080 | const char *Section, |
| 2081 | const ConstantVector &Methods) { |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 2082 | // Return null for empty list. |
| 2083 | if (Methods.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2084 | return llvm::Constant::getNullValue(ObjCTypes.MethodDescriptionListPtrTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 2085 | |
| 2086 | std::vector<llvm::Constant*> Values(2); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2087 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Methods.size()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2088 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.MethodDescriptionTy, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 2089 | Methods.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 2090 | Values[1] = llvm::ConstantArray::get(AT, Methods); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 2091 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 2092 | |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2093 | llvm::GlobalVariable *GV = CreateMetadataVar(Name, Init, Section, 4, true); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2094 | return llvm::ConstantExpr::getBitCast(GV, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 2095 | ObjCTypes.MethodDescriptionListPtrTy); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 2096 | } |
| 2097 | |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2098 | /* |
| 2099 | struct _objc_category { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2100 | char *category_name; |
| 2101 | char *class_name; |
| 2102 | struct _objc_method_list *instance_methods; |
| 2103 | struct _objc_method_list *class_methods; |
| 2104 | struct _objc_protocol_list *protocols; |
| 2105 | uint32_t size; // <rdar://4585769> |
| 2106 | struct _objc_property_list *instance_properties; |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2107 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2108 | */ |
Daniel Dunbar | 7ded7f4 | 2008-08-15 22:20:32 +0000 | [diff] [blame] | 2109 | void CGObjCMac::GenerateCategory(const ObjCCategoryImplDecl *OCD) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2110 | unsigned Size = CGM.getTargetData().getTypeAllocSize(ObjCTypes.CategoryTy); |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2111 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 2112 | // FIXME: This is poor design, the OCD should have a pointer to the category |
| 2113 | // decl. Additionally, note that Category can be null for the @implementation |
| 2114 | // w/o an @interface case. Sema should just create one for us as it does for |
| 2115 | // @implementation so everyone else can live life under a clear blue sky. |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2116 | const ObjCInterfaceDecl *Interface = OCD->getClassInterface(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2117 | const ObjCCategoryDecl *Category = |
Daniel Dunbar | 86e2f40 | 2008-08-26 23:03:11 +0000 | [diff] [blame] | 2118 | Interface->FindCategoryDeclaration(OCD->getIdentifier()); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2119 | |
| 2120 | llvm::SmallString<256> ExtName; |
| 2121 | llvm::raw_svector_ostream(ExtName) << Interface->getName() << '_' |
| 2122 | << OCD->getName(); |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2123 | |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2124 | std::vector<llvm::Constant*> InstanceMethods, ClassMethods; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2125 | for (ObjCCategoryImplDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2126 | i = OCD->instmeth_begin(), e = OCD->instmeth_end(); i != e; ++i) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2127 | // Instance methods should always be defined. |
| 2128 | InstanceMethods.push_back(GetMethodConstant(*i)); |
| 2129 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2130 | for (ObjCCategoryImplDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2131 | i = OCD->classmeth_begin(), e = OCD->classmeth_end(); i != e; ++i) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2132 | // Class methods should always be defined. |
| 2133 | ClassMethods.push_back(GetMethodConstant(*i)); |
| 2134 | } |
| 2135 | |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2136 | std::vector<llvm::Constant*> Values(7); |
| 2137 | Values[0] = GetClassName(OCD->getIdentifier()); |
| 2138 | Values[1] = GetClassName(Interface->getIdentifier()); |
Fariborz Jahanian | 679cd7f | 2009-04-29 20:40:05 +0000 | [diff] [blame] | 2139 | LazySymbols.insert(Interface->getIdentifier()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2140 | Values[2] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2141 | EmitMethodList("\01L_OBJC_CATEGORY_INSTANCE_METHODS_" + ExtName.str(), |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2142 | "__OBJC,__cat_inst_meth,regular,no_dead_strip", |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2143 | InstanceMethods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2144 | Values[3] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2145 | EmitMethodList("\01L_OBJC_CATEGORY_CLASS_METHODS_" + ExtName.str(), |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2146 | "__OBJC,__cat_cls_meth,regular,no_dead_strip", |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2147 | ClassMethods); |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2148 | if (Category) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2149 | Values[4] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2150 | EmitProtocolList("\01L_OBJC_CATEGORY_PROTOCOLS_" + ExtName.str(), |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2151 | Category->protocol_begin(), |
| 2152 | Category->protocol_end()); |
| 2153 | } else { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2154 | Values[4] = llvm::Constant::getNullValue(ObjCTypes.ProtocolListPtrTy); |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2155 | } |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2156 | Values[5] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Daniel Dunbar | 86e2f40 | 2008-08-26 23:03:11 +0000 | [diff] [blame] | 2157 | |
| 2158 | // If there is no category @interface then there can be no properties. |
| 2159 | if (Category) { |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2160 | Values[6] = EmitPropertyList("\01l_OBJC_$_PROP_LIST_" + ExtName.str(), |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 2161 | OCD, Category, ObjCTypes); |
Daniel Dunbar | 86e2f40 | 2008-08-26 23:03:11 +0000 | [diff] [blame] | 2162 | } else { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2163 | Values[6] = llvm::Constant::getNullValue(ObjCTypes.PropertyListPtrTy); |
Daniel Dunbar | 86e2f40 | 2008-08-26 23:03:11 +0000 | [diff] [blame] | 2164 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2165 | |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2166 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.CategoryTy, |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2167 | Values); |
| 2168 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2169 | llvm::GlobalVariable *GV = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2170 | CreateMetadataVar("\01L_OBJC_CATEGORY_" + ExtName.str(), Init, |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2171 | "__OBJC,__category,regular,no_dead_strip", |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 2172 | 4, true); |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2173 | DefinedCategories.push_back(GV); |
Fariborz Jahanian | b9c5b3d | 2010-06-21 22:05:18 +0000 | [diff] [blame] | 2174 | DefinedCategoryNames.insert(ExtName.str()); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 2175 | } |
| 2176 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2177 | // FIXME: Get from somewhere? |
| 2178 | enum ClassFlags { |
| 2179 | eClassFlags_Factory = 0x00001, |
| 2180 | eClassFlags_Meta = 0x00002, |
| 2181 | // <rdr://5142207> |
| 2182 | eClassFlags_HasCXXStructors = 0x02000, |
| 2183 | eClassFlags_Hidden = 0x20000, |
| 2184 | eClassFlags_ABI2_Hidden = 0x00010, |
| 2185 | eClassFlags_ABI2_HasCXXStructors = 0x00004 // <rdr://4923634> |
| 2186 | }; |
| 2187 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2188 | /* |
| 2189 | struct _objc_class { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2190 | Class isa; |
| 2191 | Class super_class; |
| 2192 | const char *name; |
| 2193 | long version; |
| 2194 | long info; |
| 2195 | long instance_size; |
| 2196 | struct _objc_ivar_list *ivars; |
| 2197 | struct _objc_method_list *methods; |
| 2198 | struct _objc_cache *cache; |
| 2199 | struct _objc_protocol_list *protocols; |
| 2200 | // Objective-C 1.0 extensions (<rdr://4585769>) |
| 2201 | const char *ivar_layout; |
| 2202 | struct _objc_class_ext *ext; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2203 | }; |
| 2204 | |
| 2205 | See EmitClassExtension(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2206 | */ |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2207 | void CGObjCMac::GenerateClass(const ObjCImplementationDecl *ID) { |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 2208 | DefinedSymbols.insert(ID->getIdentifier()); |
| 2209 | |
Chris Lattner | 8ec03f5 | 2008-11-24 03:54:41 +0000 | [diff] [blame] | 2210 | std::string ClassName = ID->getNameAsString(); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2211 | // FIXME: Gross |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2212 | ObjCInterfaceDecl *Interface = |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2213 | const_cast<ObjCInterfaceDecl*>(ID->getClassInterface()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2214 | llvm::Constant *Protocols = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2215 | EmitProtocolList("\01L_OBJC_CLASS_PROTOCOLS_" + ID->getName(), |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 2216 | Interface->protocol_begin(), |
| 2217 | Interface->protocol_end()); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2218 | unsigned Flags = eClassFlags_Factory; |
Fariborz Jahanian | 109dfc6 | 2010-04-28 21:28:56 +0000 | [diff] [blame] | 2219 | if (ID->getNumIvarInitializers()) |
| 2220 | Flags |= eClassFlags_HasCXXStructors; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2221 | unsigned Size = |
Daniel Dunbar | 2bebbf0 | 2009-05-03 10:46:44 +0000 | [diff] [blame] | 2222 | CGM.getContext().getASTObjCImplementationLayout(ID).getSize() / 8; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2223 | |
| 2224 | // FIXME: Set CXX-structors flag. |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 2225 | if (CGM.getDeclVisibilityMode(ID->getClassInterface()) == LangOptions::Hidden) |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2226 | Flags |= eClassFlags_Hidden; |
| 2227 | |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2228 | std::vector<llvm::Constant*> InstanceMethods, ClassMethods; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2229 | for (ObjCImplementationDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2230 | i = ID->instmeth_begin(), e = ID->instmeth_end(); i != e; ++i) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2231 | // Instance methods should always be defined. |
| 2232 | InstanceMethods.push_back(GetMethodConstant(*i)); |
| 2233 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2234 | for (ObjCImplementationDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2235 | i = ID->classmeth_begin(), e = ID->classmeth_end(); i != e; ++i) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2236 | // Class methods should always be defined. |
| 2237 | ClassMethods.push_back(GetMethodConstant(*i)); |
| 2238 | } |
| 2239 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2240 | for (ObjCImplementationDecl::propimpl_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2241 | i = ID->propimpl_begin(), e = ID->propimpl_end(); i != e; ++i) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2242 | ObjCPropertyImplDecl *PID = *i; |
| 2243 | |
| 2244 | if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize) { |
| 2245 | ObjCPropertyDecl *PD = PID->getPropertyDecl(); |
| 2246 | |
| 2247 | if (ObjCMethodDecl *MD = PD->getGetterMethodDecl()) |
| 2248 | if (llvm::Constant *C = GetMethodConstant(MD)) |
| 2249 | InstanceMethods.push_back(C); |
| 2250 | if (ObjCMethodDecl *MD = PD->getSetterMethodDecl()) |
| 2251 | if (llvm::Constant *C = GetMethodConstant(MD)) |
| 2252 | InstanceMethods.push_back(C); |
| 2253 | } |
| 2254 | } |
| 2255 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2256 | std::vector<llvm::Constant*> Values(12); |
Daniel Dunbar | 5384b09 | 2009-05-03 08:56:52 +0000 | [diff] [blame] | 2257 | Values[ 0] = EmitMetaClass(ID, Protocols, ClassMethods); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2258 | if (ObjCInterfaceDecl *Super = Interface->getSuperClass()) { |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 2259 | // Record a reference to the super class. |
| 2260 | LazySymbols.insert(Super->getIdentifier()); |
| 2261 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2262 | Values[ 1] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2263 | llvm::ConstantExpr::getBitCast(GetClassName(Super->getIdentifier()), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2264 | ObjCTypes.ClassPtrTy); |
| 2265 | } else { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2266 | Values[ 1] = llvm::Constant::getNullValue(ObjCTypes.ClassPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2267 | } |
| 2268 | Values[ 2] = GetClassName(ID->getIdentifier()); |
| 2269 | // Version is always 0. |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2270 | Values[ 3] = llvm::ConstantInt::get(ObjCTypes.LongTy, 0); |
| 2271 | Values[ 4] = llvm::ConstantInt::get(ObjCTypes.LongTy, Flags); |
| 2272 | Values[ 5] = llvm::ConstantInt::get(ObjCTypes.LongTy, Size); |
Fariborz Jahanian | 46b86c6 | 2009-01-28 19:12:34 +0000 | [diff] [blame] | 2273 | Values[ 6] = EmitIvarList(ID, false); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2274 | Values[ 7] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2275 | EmitMethodList("\01L_OBJC_INSTANCE_METHODS_" + ID->getName(), |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2276 | "__OBJC,__inst_meth,regular,no_dead_strip", |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2277 | InstanceMethods); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2278 | // cache is always NULL. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2279 | Values[ 8] = llvm::Constant::getNullValue(ObjCTypes.CachePtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2280 | Values[ 9] = Protocols; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2281 | Values[10] = BuildIvarLayout(ID, true); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2282 | Values[11] = EmitClassExtension(ID); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2283 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ClassTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2284 | Values); |
Fariborz Jahanian | b0069ee | 2009-11-12 20:14:24 +0000 | [diff] [blame] | 2285 | std::string Name("\01L_OBJC_CLASS_"); |
| 2286 | Name += ClassName; |
| 2287 | const char *Section = "__OBJC,__class,regular,no_dead_strip"; |
| 2288 | // Check for a forward reference. |
| 2289 | llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name); |
| 2290 | if (GV) { |
| 2291 | assert(GV->getType()->getElementType() == ObjCTypes.ClassTy && |
| 2292 | "Forward metaclass reference has incorrect type."); |
| 2293 | GV->setLinkage(llvm::GlobalValue::InternalLinkage); |
| 2294 | GV->setInitializer(Init); |
| 2295 | GV->setSection(Section); |
| 2296 | GV->setAlignment(4); |
| 2297 | CGM.AddUsedGlobal(GV); |
| 2298 | } |
| 2299 | else |
| 2300 | GV = CreateMetadataVar(Name, Init, Section, 4, true); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2301 | DefinedClasses.push_back(GV); |
| 2302 | } |
| 2303 | |
| 2304 | llvm::Constant *CGObjCMac::EmitMetaClass(const ObjCImplementationDecl *ID, |
| 2305 | llvm::Constant *Protocols, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2306 | const ConstantVector &Methods) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2307 | unsigned Flags = eClassFlags_Meta; |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2308 | unsigned Size = CGM.getTargetData().getTypeAllocSize(ObjCTypes.ClassTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2309 | |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 2310 | if (CGM.getDeclVisibilityMode(ID->getClassInterface()) == LangOptions::Hidden) |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2311 | Flags |= eClassFlags_Hidden; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2312 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2313 | std::vector<llvm::Constant*> Values(12); |
| 2314 | // The isa for the metaclass is the root of the hierarchy. |
| 2315 | const ObjCInterfaceDecl *Root = ID->getClassInterface(); |
| 2316 | while (const ObjCInterfaceDecl *Super = Root->getSuperClass()) |
| 2317 | Root = Super; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2318 | Values[ 0] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2319 | llvm::ConstantExpr::getBitCast(GetClassName(Root->getIdentifier()), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2320 | ObjCTypes.ClassPtrTy); |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2321 | // The super class for the metaclass is emitted as the name of the |
| 2322 | // super class. The runtime fixes this up to point to the |
| 2323 | // *metaclass* for the super class. |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2324 | if (ObjCInterfaceDecl *Super = ID->getClassInterface()->getSuperClass()) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2325 | Values[ 1] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2326 | llvm::ConstantExpr::getBitCast(GetClassName(Super->getIdentifier()), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2327 | ObjCTypes.ClassPtrTy); |
| 2328 | } else { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2329 | Values[ 1] = llvm::Constant::getNullValue(ObjCTypes.ClassPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2330 | } |
| 2331 | Values[ 2] = GetClassName(ID->getIdentifier()); |
| 2332 | // Version is always 0. |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2333 | Values[ 3] = llvm::ConstantInt::get(ObjCTypes.LongTy, 0); |
| 2334 | Values[ 4] = llvm::ConstantInt::get(ObjCTypes.LongTy, Flags); |
| 2335 | Values[ 5] = llvm::ConstantInt::get(ObjCTypes.LongTy, Size); |
Fariborz Jahanian | 46b86c6 | 2009-01-28 19:12:34 +0000 | [diff] [blame] | 2336 | Values[ 6] = EmitIvarList(ID, true); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2337 | Values[ 7] = |
Chris Lattner | d9d22dd | 2008-11-24 05:29:24 +0000 | [diff] [blame] | 2338 | EmitMethodList("\01L_OBJC_CLASS_METHODS_" + ID->getNameAsString(), |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2339 | "__OBJC,__cls_meth,regular,no_dead_strip", |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2340 | Methods); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2341 | // cache is always NULL. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2342 | Values[ 8] = llvm::Constant::getNullValue(ObjCTypes.CachePtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2343 | Values[ 9] = Protocols; |
| 2344 | // ivar_layout for metaclass is always NULL. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2345 | Values[10] = llvm::Constant::getNullValue(ObjCTypes.Int8PtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2346 | // The class extension is always unused for metaclasses. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2347 | Values[11] = llvm::Constant::getNullValue(ObjCTypes.ClassExtensionPtrTy); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2348 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ClassTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2349 | Values); |
| 2350 | |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2351 | std::string Name("\01L_OBJC_METACLASS_"); |
Chris Lattner | 8ec03f5 | 2008-11-24 03:54:41 +0000 | [diff] [blame] | 2352 | Name += ID->getNameAsCString(); |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2353 | |
| 2354 | // Check for a forward reference. |
| 2355 | llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name); |
| 2356 | if (GV) { |
| 2357 | assert(GV->getType()->getElementType() == ObjCTypes.ClassTy && |
| 2358 | "Forward metaclass reference has incorrect type."); |
| 2359 | GV->setLinkage(llvm::GlobalValue::InternalLinkage); |
| 2360 | GV->setInitializer(Init); |
| 2361 | } else { |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 2362 | GV = new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassTy, false, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2363 | llvm::GlobalValue::InternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 2364 | Init, Name); |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2365 | } |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2366 | GV->setSection("__OBJC,__meta_class,regular,no_dead_strip"); |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 2367 | GV->setAlignment(4); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 2368 | CGM.AddUsedGlobal(GV); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2369 | |
| 2370 | return GV; |
| 2371 | } |
| 2372 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2373 | llvm::Constant *CGObjCMac::EmitMetaClassRef(const ObjCInterfaceDecl *ID) { |
Chris Lattner | d9d22dd | 2008-11-24 05:29:24 +0000 | [diff] [blame] | 2374 | std::string Name = "\01L_OBJC_METACLASS_" + ID->getNameAsString(); |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2375 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 2376 | // FIXME: Should we look these up somewhere other than the module. Its a bit |
| 2377 | // silly since we only generate these while processing an implementation, so |
| 2378 | // exactly one pointer would work if know when we entered/exitted an |
| 2379 | // implementation block. |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2380 | |
| 2381 | // Check for an existing forward reference. |
Fariborz Jahanian | b0d2794 | 2009-01-07 20:11:22 +0000 | [diff] [blame] | 2382 | // Previously, metaclass with internal linkage may have been defined. |
| 2383 | // pass 'true' as 2nd argument so it is returned. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2384 | if (llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name, |
| 2385 | true)) { |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2386 | assert(GV->getType()->getElementType() == ObjCTypes.ClassTy && |
| 2387 | "Forward metaclass reference has incorrect type."); |
| 2388 | return GV; |
| 2389 | } else { |
| 2390 | // Generate as an external reference to keep a consistent |
| 2391 | // module. This will be patched up when we emit the metaclass. |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 2392 | return new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassTy, false, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2393 | llvm::GlobalValue::ExternalLinkage, |
| 2394 | 0, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 2395 | Name); |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2396 | } |
| 2397 | } |
| 2398 | |
Fariborz Jahanian | b0069ee | 2009-11-12 20:14:24 +0000 | [diff] [blame] | 2399 | llvm::Value *CGObjCMac::EmitSuperClassRef(const ObjCInterfaceDecl *ID) { |
| 2400 | std::string Name = "\01L_OBJC_CLASS_" + ID->getNameAsString(); |
| 2401 | |
| 2402 | if (llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name, |
| 2403 | true)) { |
| 2404 | assert(GV->getType()->getElementType() == ObjCTypes.ClassTy && |
| 2405 | "Forward class metadata reference has incorrect type."); |
| 2406 | return GV; |
| 2407 | } else { |
| 2408 | return new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassTy, false, |
| 2409 | llvm::GlobalValue::ExternalLinkage, |
| 2410 | 0, |
| 2411 | Name); |
| 2412 | } |
| 2413 | } |
| 2414 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2415 | /* |
| 2416 | struct objc_class_ext { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2417 | uint32_t size; |
| 2418 | const char *weak_ivar_layout; |
| 2419 | struct _objc_property_list *properties; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2420 | }; |
| 2421 | */ |
| 2422 | llvm::Constant * |
| 2423 | CGObjCMac::EmitClassExtension(const ObjCImplementationDecl *ID) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2424 | uint64_t Size = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2425 | CGM.getTargetData().getTypeAllocSize(ObjCTypes.ClassExtensionTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2426 | |
| 2427 | std::vector<llvm::Constant*> Values(3); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2428 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Fariborz Jahanian | c71303d | 2009-04-22 23:00:43 +0000 | [diff] [blame] | 2429 | Values[1] = BuildIvarLayout(ID, false); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2430 | Values[2] = EmitPropertyList("\01l_OBJC_$_PROP_LIST_" + ID->getName(), |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 2431 | ID, ID->getClassInterface(), ObjCTypes); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2432 | |
| 2433 | // Return null if no extension bits are used. |
| 2434 | if (Values[1]->isNullValue() && Values[2]->isNullValue()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2435 | return llvm::Constant::getNullValue(ObjCTypes.ClassExtensionPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2436 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2437 | llvm::Constant *Init = |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2438 | llvm::ConstantStruct::get(ObjCTypes.ClassExtensionTy, Values); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2439 | return CreateMetadataVar("\01L_OBJC_CLASSEXT_" + ID->getName(), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2440 | Init, "__OBJC,__class_ext,regular,no_dead_strip", |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2441 | 4, true); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2442 | } |
| 2443 | |
| 2444 | /* |
| 2445 | struct objc_ivar { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2446 | char *ivar_name; |
| 2447 | char *ivar_type; |
| 2448 | int ivar_offset; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2449 | }; |
| 2450 | |
| 2451 | struct objc_ivar_list { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2452 | int ivar_count; |
| 2453 | struct objc_ivar list[count]; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2454 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2455 | */ |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2456 | llvm::Constant *CGObjCMac::EmitIvarList(const ObjCImplementationDecl *ID, |
Fariborz Jahanian | 46b86c6 | 2009-01-28 19:12:34 +0000 | [diff] [blame] | 2457 | bool ForClass) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2458 | std::vector<llvm::Constant*> Ivars, Ivar(3); |
| 2459 | |
| 2460 | // When emitting the root class GCC emits ivar entries for the |
| 2461 | // actual class structure. It is not clear if we need to follow this |
| 2462 | // behavior; for now lets try and get away with not doing it. If so, |
| 2463 | // the cleanest solution would be to make up an ObjCInterfaceDecl |
| 2464 | // for the class. |
| 2465 | if (ForClass) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2466 | return llvm::Constant::getNullValue(ObjCTypes.IvarListPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2467 | |
| 2468 | ObjCInterfaceDecl *OID = |
Fariborz Jahanian | 46b86c6 | 2009-01-28 19:12:34 +0000 | [diff] [blame] | 2469 | const_cast<ObjCInterfaceDecl*>(ID->getClassInterface()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2470 | |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 2471 | llvm::SmallVector<ObjCIvarDecl*, 16> OIvars; |
Fariborz Jahanian | 8e6ac1d | 2009-06-04 01:19:09 +0000 | [diff] [blame] | 2472 | CGM.getContext().ShallowCollectObjCIvars(OID, OIvars); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2473 | |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 2474 | for (unsigned i = 0, e = OIvars.size(); i != e; ++i) { |
| 2475 | ObjCIvarDecl *IVD = OIvars[i]; |
Fariborz Jahanian | 8e6ac1d | 2009-06-04 01:19:09 +0000 | [diff] [blame] | 2476 | // Ignore unnamed bit-fields. |
| 2477 | if (!IVD->getDeclName()) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2478 | continue; |
Daniel Dunbar | 3fea0c0 | 2009-04-22 08:22:17 +0000 | [diff] [blame] | 2479 | Ivar[0] = GetMethodVarName(IVD->getIdentifier()); |
| 2480 | Ivar[1] = GetMethodVarType(IVD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2481 | Ivar[2] = llvm::ConstantInt::get(ObjCTypes.IntTy, |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 2482 | ComputeIvarBaseOffset(CGM, OID, IVD)); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2483 | Ivars.push_back(llvm::ConstantStruct::get(ObjCTypes.IvarTy, Ivar)); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2484 | } |
| 2485 | |
| 2486 | // Return null for empty list. |
| 2487 | if (Ivars.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2488 | return llvm::Constant::getNullValue(ObjCTypes.IvarListPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2489 | |
| 2490 | std::vector<llvm::Constant*> Values(2); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2491 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Ivars.size()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 2492 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.IvarTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2493 | Ivars.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 2494 | Values[1] = llvm::ConstantArray::get(AT, Ivars); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 2495 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2496 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2497 | llvm::GlobalVariable *GV; |
| 2498 | if (ForClass) |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2499 | GV = CreateMetadataVar("\01L_OBJC_CLASS_VARIABLES_" + ID->getName(), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2500 | Init, "__OBJC,__class_vars,regular,no_dead_strip", |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 2501 | 4, true); |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2502 | else |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2503 | GV = CreateMetadataVar("\01L_OBJC_INSTANCE_VARIABLES_" + ID->getName(), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2504 | Init, "__OBJC,__instance_vars,regular,no_dead_strip", |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2505 | 4, true); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2506 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.IvarListPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2507 | } |
| 2508 | |
| 2509 | /* |
| 2510 | struct objc_method { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2511 | SEL method_name; |
| 2512 | char *method_types; |
| 2513 | void *method; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2514 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2515 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2516 | struct objc_method_list { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2517 | struct objc_method_list *obsolete; |
| 2518 | int count; |
| 2519 | struct objc_method methods_list[count]; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2520 | }; |
| 2521 | */ |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2522 | |
| 2523 | /// GetMethodConstant - Return a struct objc_method constant for the |
| 2524 | /// given method if it has been defined. The result is null if the |
| 2525 | /// method has not been defined. The return value has type MethodPtrTy. |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2526 | llvm::Constant *CGObjCMac::GetMethodConstant(const ObjCMethodDecl *MD) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2527 | // FIXME: Use DenseMap::lookup |
| 2528 | llvm::Function *Fn = MethodDefinitions[MD]; |
| 2529 | if (!Fn) |
| 2530 | return 0; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2531 | |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2532 | std::vector<llvm::Constant*> Method(3); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2533 | Method[0] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2534 | llvm::ConstantExpr::getBitCast(GetMethodVarName(MD->getSelector()), |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2535 | ObjCTypes.SelectorPtrTy); |
| 2536 | Method[1] = GetMethodVarType(MD); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2537 | Method[2] = llvm::ConstantExpr::getBitCast(Fn, ObjCTypes.Int8PtrTy); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2538 | return llvm::ConstantStruct::get(ObjCTypes.MethodTy, Method); |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2539 | } |
| 2540 | |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2541 | llvm::Constant *CGObjCMac::EmitMethodList(llvm::Twine Name, |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2542 | const char *Section, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2543 | const ConstantVector &Methods) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2544 | // Return null for empty list. |
| 2545 | if (Methods.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2546 | return llvm::Constant::getNullValue(ObjCTypes.MethodListPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2547 | |
| 2548 | std::vector<llvm::Constant*> Values(3); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2549 | Values[0] = llvm::Constant::getNullValue(ObjCTypes.Int8PtrTy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2550 | Values[1] = llvm::ConstantInt::get(ObjCTypes.IntTy, Methods.size()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 2551 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.MethodTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2552 | Methods.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 2553 | Values[2] = llvm::ConstantArray::get(AT, Methods); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 2554 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2555 | |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2556 | llvm::GlobalVariable *GV = CreateMetadataVar(Name, Init, Section, 4, true); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2557 | return llvm::ConstantExpr::getBitCast(GV, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2558 | ObjCTypes.MethodListPtrTy); |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2559 | } |
| 2560 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 2561 | llvm::Function *CGObjCCommonMac::GenerateMethod(const ObjCMethodDecl *OMD, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2562 | const ObjCContainerDecl *CD) { |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 2563 | llvm::SmallString<256> Name; |
Fariborz Jahanian | 679a502 | 2009-01-10 21:06:09 +0000 | [diff] [blame] | 2564 | GetNameForMethod(OMD, CD, Name); |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2565 | |
Daniel Dunbar | 541b63b | 2009-02-02 23:23:47 +0000 | [diff] [blame] | 2566 | CodeGenTypes &Types = CGM.getTypes(); |
Daniel Dunbar | 45c25ba | 2008-09-10 04:01:49 +0000 | [diff] [blame] | 2567 | const llvm::FunctionType *MethodTy = |
Daniel Dunbar | 541b63b | 2009-02-02 23:23:47 +0000 | [diff] [blame] | 2568 | Types.GetFunctionType(Types.getFunctionInfo(OMD), OMD->isVariadic()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2569 | llvm::Function *Method = |
Daniel Dunbar | 45c25ba | 2008-09-10 04:01:49 +0000 | [diff] [blame] | 2570 | llvm::Function::Create(MethodTy, |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2571 | llvm::GlobalValue::InternalLinkage, |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 2572 | Name.str(), |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2573 | &CGM.getModule()); |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2574 | MethodDefinitions.insert(std::make_pair(OMD, Method)); |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2575 | |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2576 | return Method; |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 2577 | } |
| 2578 | |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 2579 | llvm::GlobalVariable * |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2580 | CGObjCCommonMac::CreateMetadataVar(llvm::Twine Name, |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 2581 | llvm::Constant *Init, |
| 2582 | const char *Section, |
Daniel Dunbar | 35bd763 | 2009-03-09 20:50:13 +0000 | [diff] [blame] | 2583 | unsigned Align, |
| 2584 | bool AddToUsed) { |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 2585 | const llvm::Type *Ty = Init->getType(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2586 | llvm::GlobalVariable *GV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 2587 | new llvm::GlobalVariable(CGM.getModule(), Ty, false, |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 2588 | llvm::GlobalValue::InternalLinkage, Init, Name); |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 2589 | if (Section) |
| 2590 | GV->setSection(Section); |
Daniel Dunbar | 35bd763 | 2009-03-09 20:50:13 +0000 | [diff] [blame] | 2591 | if (Align) |
| 2592 | GV->setAlignment(Align); |
| 2593 | if (AddToUsed) |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 2594 | CGM.AddUsedGlobal(GV); |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 2595 | return GV; |
| 2596 | } |
| 2597 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2598 | llvm::Function *CGObjCMac::ModuleInitFunction() { |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 2599 | // Abuse this interface function as a place to finalize. |
| 2600 | FinishModule(); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 2601 | return NULL; |
| 2602 | } |
| 2603 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 2604 | llvm::Constant *CGObjCMac::GetPropertyGetFunction() { |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 2605 | return ObjCTypes.getGetPropertyFn(); |
Daniel Dunbar | 49f6602 | 2008-09-24 03:38:44 +0000 | [diff] [blame] | 2606 | } |
| 2607 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 2608 | llvm::Constant *CGObjCMac::GetPropertySetFunction() { |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 2609 | return ObjCTypes.getSetPropertyFn(); |
Daniel Dunbar | 49f6602 | 2008-09-24 03:38:44 +0000 | [diff] [blame] | 2610 | } |
| 2611 | |
Fariborz Jahanian | 6cc5906 | 2010-04-12 18:18:10 +0000 | [diff] [blame] | 2612 | llvm::Constant *CGObjCMac::GetCopyStructFunction() { |
| 2613 | return ObjCTypes.getCopyStructFn(); |
| 2614 | } |
| 2615 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 2616 | llvm::Constant *CGObjCMac::EnumerationMutationFunction() { |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 2617 | return ObjCTypes.getEnumerationMutationFn(); |
Anders Carlsson | 2abd89c | 2008-08-31 04:05:03 +0000 | [diff] [blame] | 2618 | } |
| 2619 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2620 | void CGObjCMac::EmitTryStmt(CodeGenFunction &CGF, const ObjCAtTryStmt &S) { |
| 2621 | return EmitTryOrSynchronizedStmt(CGF, S); |
| 2622 | } |
| 2623 | |
| 2624 | void CGObjCMac::EmitSynchronizedStmt(CodeGenFunction &CGF, |
| 2625 | const ObjCAtSynchronizedStmt &S) { |
| 2626 | return EmitTryOrSynchronizedStmt(CGF, S); |
| 2627 | } |
| 2628 | |
John McCall | cc50529 | 2010-07-21 06:59:36 +0000 | [diff] [blame] | 2629 | namespace { |
John McCall | 1f0fca5 | 2010-07-21 07:22:38 +0000 | [diff] [blame] | 2630 | struct PerformFragileFinally : EHScopeStack::Cleanup { |
John McCall | cc50529 | 2010-07-21 06:59:36 +0000 | [diff] [blame] | 2631 | const Stmt &S; |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2632 | llvm::Value *SyncArgSlot; |
John McCall | cc50529 | 2010-07-21 06:59:36 +0000 | [diff] [blame] | 2633 | llvm::Value *CallTryExitVar; |
| 2634 | llvm::Value *ExceptionData; |
| 2635 | ObjCTypesHelper &ObjCTypes; |
| 2636 | PerformFragileFinally(const Stmt *S, |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2637 | llvm::Value *SyncArgSlot, |
John McCall | cc50529 | 2010-07-21 06:59:36 +0000 | [diff] [blame] | 2638 | llvm::Value *CallTryExitVar, |
| 2639 | llvm::Value *ExceptionData, |
| 2640 | ObjCTypesHelper *ObjCTypes) |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2641 | : S(*S), SyncArgSlot(SyncArgSlot), CallTryExitVar(CallTryExitVar), |
John McCall | cc50529 | 2010-07-21 06:59:36 +0000 | [diff] [blame] | 2642 | ExceptionData(ExceptionData), ObjCTypes(*ObjCTypes) {} |
| 2643 | |
| 2644 | void Emit(CodeGenFunction &CGF, bool IsForEH) { |
| 2645 | // Check whether we need to call objc_exception_try_exit. |
| 2646 | // In optimized code, this branch will always be folded. |
| 2647 | llvm::BasicBlock *FinallyCallExit = |
| 2648 | CGF.createBasicBlock("finally.call_exit"); |
| 2649 | llvm::BasicBlock *FinallyNoCallExit = |
| 2650 | CGF.createBasicBlock("finally.no_call_exit"); |
| 2651 | CGF.Builder.CreateCondBr(CGF.Builder.CreateLoad(CallTryExitVar), |
| 2652 | FinallyCallExit, FinallyNoCallExit); |
| 2653 | |
| 2654 | CGF.EmitBlock(FinallyCallExit); |
| 2655 | CGF.Builder.CreateCall(ObjCTypes.getExceptionTryExitFn(), ExceptionData) |
| 2656 | ->setDoesNotThrow(); |
| 2657 | |
| 2658 | CGF.EmitBlock(FinallyNoCallExit); |
| 2659 | |
| 2660 | if (isa<ObjCAtTryStmt>(S)) { |
| 2661 | if (const ObjCAtFinallyStmt* FinallyStmt = |
| 2662 | cast<ObjCAtTryStmt>(S).getFinallyStmt()) |
| 2663 | CGF.EmitStmt(FinallyStmt->getFinallyBody()); |
| 2664 | |
| 2665 | // Currently, the end of the cleanup must always exist. |
| 2666 | CGF.EnsureInsertPoint(); |
| 2667 | } else { |
| 2668 | // Emit objc_sync_exit(expr); as finally's sole statement for |
| 2669 | // @synchronized. |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2670 | llvm::Value *SyncArg = CGF.Builder.CreateLoad(SyncArgSlot); |
John McCall | cc50529 | 2010-07-21 06:59:36 +0000 | [diff] [blame] | 2671 | CGF.Builder.CreateCall(ObjCTypes.getSyncExitFn(), SyncArg) |
| 2672 | ->setDoesNotThrow(); |
| 2673 | } |
| 2674 | } |
| 2675 | }; |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 2676 | |
| 2677 | class FragileHazards { |
| 2678 | CodeGenFunction &CGF; |
| 2679 | llvm::SmallVector<llvm::Value*, 20> Locals; |
| 2680 | llvm::DenseSet<llvm::BasicBlock*> BlocksBeforeTry; |
| 2681 | |
| 2682 | llvm::InlineAsm *ReadHazard; |
| 2683 | llvm::InlineAsm *WriteHazard; |
| 2684 | |
| 2685 | llvm::FunctionType *GetAsmFnType(); |
| 2686 | |
| 2687 | void collectLocals(); |
| 2688 | void emitReadHazard(CGBuilderTy &Builder); |
| 2689 | |
| 2690 | public: |
| 2691 | FragileHazards(CodeGenFunction &CGF); |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2692 | |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 2693 | void emitWriteHazard(); |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2694 | void emitHazardsInNewBlocks(); |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 2695 | }; |
| 2696 | } |
| 2697 | |
| 2698 | /// Create the fragile-ABI read and write hazards based on the current |
| 2699 | /// state of the function, which is presumed to be immediately prior |
| 2700 | /// to a @try block. These hazards are used to maintain correct |
| 2701 | /// semantics in the face of optimization and the fragile ABI's |
| 2702 | /// cavalier use of setjmp/longjmp. |
| 2703 | FragileHazards::FragileHazards(CodeGenFunction &CGF) : CGF(CGF) { |
| 2704 | collectLocals(); |
| 2705 | |
| 2706 | if (Locals.empty()) return; |
| 2707 | |
| 2708 | // Collect all the blocks in the function. |
| 2709 | for (llvm::Function::iterator |
| 2710 | I = CGF.CurFn->begin(), E = CGF.CurFn->end(); I != E; ++I) |
| 2711 | BlocksBeforeTry.insert(&*I); |
| 2712 | |
| 2713 | llvm::FunctionType *AsmFnTy = GetAsmFnType(); |
| 2714 | |
| 2715 | // Create a read hazard for the allocas. This inhibits dead-store |
| 2716 | // optimizations and forces the values to memory. This hazard is |
| 2717 | // inserted before any 'throwing' calls in the protected scope to |
| 2718 | // reflect the possibility that the variables might be read from the |
| 2719 | // catch block if the call throws. |
| 2720 | { |
| 2721 | std::string Constraint; |
| 2722 | for (unsigned I = 0, E = Locals.size(); I != E; ++I) { |
| 2723 | if (I) Constraint += ','; |
| 2724 | Constraint += "*m"; |
| 2725 | } |
| 2726 | |
| 2727 | ReadHazard = llvm::InlineAsm::get(AsmFnTy, "", Constraint, true, false); |
| 2728 | } |
| 2729 | |
| 2730 | // Create a write hazard for the allocas. This inhibits folding |
| 2731 | // loads across the hazard. This hazard is inserted at the |
| 2732 | // beginning of the catch path to reflect the possibility that the |
| 2733 | // variables might have been written within the protected scope. |
| 2734 | { |
| 2735 | std::string Constraint; |
| 2736 | for (unsigned I = 0, E = Locals.size(); I != E; ++I) { |
| 2737 | if (I) Constraint += ','; |
| 2738 | Constraint += "=*m"; |
| 2739 | } |
| 2740 | |
| 2741 | WriteHazard = llvm::InlineAsm::get(AsmFnTy, "", Constraint, true, false); |
| 2742 | } |
| 2743 | } |
| 2744 | |
| 2745 | /// Emit a write hazard at the current location. |
| 2746 | void FragileHazards::emitWriteHazard() { |
| 2747 | if (Locals.empty()) return; |
| 2748 | |
| 2749 | CGF.Builder.CreateCall(WriteHazard, Locals.begin(), Locals.end()) |
| 2750 | ->setDoesNotThrow(); |
| 2751 | } |
| 2752 | |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 2753 | void FragileHazards::emitReadHazard(CGBuilderTy &Builder) { |
| 2754 | assert(!Locals.empty()); |
| 2755 | Builder.CreateCall(ReadHazard, Locals.begin(), Locals.end()) |
| 2756 | ->setDoesNotThrow(); |
| 2757 | } |
| 2758 | |
| 2759 | /// Emit read hazards in all the protected blocks, i.e. all the blocks |
| 2760 | /// which have been inserted since the beginning of the try. |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2761 | void FragileHazards::emitHazardsInNewBlocks() { |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 2762 | if (Locals.empty()) return; |
| 2763 | |
| 2764 | CGBuilderTy Builder(CGF.getLLVMContext()); |
| 2765 | |
| 2766 | // Iterate through all blocks, skipping those prior to the try. |
| 2767 | for (llvm::Function::iterator |
| 2768 | FI = CGF.CurFn->begin(), FE = CGF.CurFn->end(); FI != FE; ++FI) { |
| 2769 | llvm::BasicBlock &BB = *FI; |
| 2770 | if (BlocksBeforeTry.count(&BB)) continue; |
| 2771 | |
| 2772 | // Walk through all the calls in the block. |
| 2773 | for (llvm::BasicBlock::iterator |
| 2774 | BI = BB.begin(), BE = BB.end(); BI != BE; ++BI) { |
| 2775 | llvm::Instruction &I = *BI; |
| 2776 | |
| 2777 | // Ignore instructions that aren't non-intrinsic calls. |
| 2778 | // These are the only calls that can possibly call longjmp. |
| 2779 | if (!isa<llvm::CallInst>(I) && !isa<llvm::InvokeInst>(I)) continue; |
| 2780 | if (isa<llvm::IntrinsicInst>(I)) |
| 2781 | continue; |
| 2782 | |
| 2783 | // Ignore call sites marked nounwind. This may be questionable, |
| 2784 | // since 'nounwind' doesn't necessarily mean 'does not call longjmp'. |
| 2785 | llvm::CallSite CS(&I); |
| 2786 | if (CS.doesNotThrow()) continue; |
| 2787 | |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2788 | // Insert a read hazard before the call. This will ensure that |
| 2789 | // any writes to the locals are performed before making the |
| 2790 | // call. If the call throws, then this is sufficient to |
| 2791 | // guarantee correctness as long as it doesn't also write to any |
| 2792 | // locals. |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 2793 | Builder.SetInsertPoint(&BB, BI); |
| 2794 | emitReadHazard(Builder); |
| 2795 | } |
| 2796 | } |
| 2797 | } |
| 2798 | |
| 2799 | static void addIfPresent(llvm::DenseSet<llvm::Value*> &S, llvm::Value *V) { |
| 2800 | if (V) S.insert(V); |
| 2801 | } |
| 2802 | |
| 2803 | void FragileHazards::collectLocals() { |
| 2804 | // Compute a set of allocas to ignore. |
| 2805 | llvm::DenseSet<llvm::Value*> AllocasToIgnore; |
| 2806 | addIfPresent(AllocasToIgnore, CGF.ReturnValue); |
| 2807 | addIfPresent(AllocasToIgnore, CGF.NormalCleanupDest); |
| 2808 | addIfPresent(AllocasToIgnore, CGF.EHCleanupDest); |
| 2809 | |
| 2810 | // Collect all the allocas currently in the function. This is |
| 2811 | // probably way too aggressive. |
| 2812 | llvm::BasicBlock &Entry = CGF.CurFn->getEntryBlock(); |
| 2813 | for (llvm::BasicBlock::iterator |
| 2814 | I = Entry.begin(), E = Entry.end(); I != E; ++I) |
| 2815 | if (isa<llvm::AllocaInst>(*I) && !AllocasToIgnore.count(&*I)) |
| 2816 | Locals.push_back(&*I); |
| 2817 | } |
| 2818 | |
| 2819 | llvm::FunctionType *FragileHazards::GetAsmFnType() { |
| 2820 | std::vector<const llvm::Type *> Tys(Locals.size()); |
| 2821 | for (unsigned I = 0, E = Locals.size(); I != E; ++I) |
| 2822 | Tys[I] = Locals[I]->getType(); |
| 2823 | return llvm::FunctionType::get(CGF.Builder.getVoidTy(), Tys, false); |
John McCall | cc50529 | 2010-07-21 06:59:36 +0000 | [diff] [blame] | 2824 | } |
| 2825 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2826 | /* |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2827 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2828 | Objective-C setjmp-longjmp (sjlj) Exception Handling |
| 2829 | -- |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2830 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2831 | A catch buffer is a setjmp buffer plus: |
| 2832 | - a pointer to the exception that was caught |
| 2833 | - a pointer to the previous exception data buffer |
| 2834 | - two pointers of reserved storage |
| 2835 | Therefore catch buffers form a stack, with a pointer to the top |
| 2836 | of the stack kept in thread-local storage. |
| 2837 | |
| 2838 | objc_exception_try_enter pushes a catch buffer onto the EH stack. |
| 2839 | objc_exception_try_exit pops the given catch buffer, which is |
| 2840 | required to be the top of the EH stack. |
| 2841 | objc_exception_throw pops the top of the EH stack, writes the |
| 2842 | thrown exception into the appropriate field, and longjmps |
| 2843 | to the setjmp buffer. It crashes the process (with a printf |
| 2844 | and an abort()) if there are no catch buffers on the stack. |
| 2845 | objc_exception_extract just reads the exception pointer out of the |
| 2846 | catch buffer. |
| 2847 | |
| 2848 | There's no reason an implementation couldn't use a light-weight |
| 2849 | setjmp here --- something like __builtin_setjmp, but API-compatible |
| 2850 | with the heavyweight setjmp. This will be more important if we ever |
| 2851 | want to implement correct ObjC/C++ exception interactions for the |
| 2852 | fragile ABI. |
| 2853 | |
| 2854 | Note that for this use of setjmp/longjmp to be correct, we may need |
| 2855 | to mark some local variables volatile: if a non-volatile local |
| 2856 | variable is modified between the setjmp and the longjmp, it has |
| 2857 | indeterminate value. For the purposes of LLVM IR, it may be |
| 2858 | sufficient to make loads and stores within the @try (to variables |
| 2859 | declared outside the @try) volatile. This is necessary for |
| 2860 | optimized correctness, but is not currently being done; this is |
| 2861 | being tracked as rdar://problem/8160285 |
| 2862 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2863 | The basic framework for a @try-catch-finally is as follows: |
| 2864 | { |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2865 | objc_exception_data d; |
| 2866 | id _rethrow = null; |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2867 | bool _call_try_exit = true; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2868 | |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2869 | objc_exception_try_enter(&d); |
| 2870 | if (!setjmp(d.jmp_buf)) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2871 | ... try body ... |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2872 | } else { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2873 | // exception path |
| 2874 | id _caught = objc_exception_extract(&d); |
| 2875 | |
| 2876 | // enter new try scope for handlers |
| 2877 | if (!setjmp(d.jmp_buf)) { |
| 2878 | ... match exception and execute catch blocks ... |
| 2879 | |
| 2880 | // fell off end, rethrow. |
| 2881 | _rethrow = _caught; |
| 2882 | ... jump-through-finally to finally_rethrow ... |
| 2883 | } else { |
| 2884 | // exception in catch block |
| 2885 | _rethrow = objc_exception_extract(&d); |
| 2886 | _call_try_exit = false; |
| 2887 | ... jump-through-finally to finally_rethrow ... |
| 2888 | } |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2889 | } |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2890 | ... jump-through-finally to finally_end ... |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2891 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2892 | finally: |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2893 | if (_call_try_exit) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2894 | objc_exception_try_exit(&d); |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2895 | |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2896 | ... finally block .... |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2897 | ... dispatch to finally destination ... |
| 2898 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2899 | finally_rethrow: |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2900 | objc_exception_throw(_rethrow); |
| 2901 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2902 | finally_end: |
| 2903 | } |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2904 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2905 | This framework differs slightly from the one gcc uses, in that gcc |
| 2906 | uses _rethrow to determine if objc_exception_try_exit should be called |
| 2907 | and if the object should be rethrown. This breaks in the face of |
| 2908 | throwing nil and introduces unnecessary branches. |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2909 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2910 | We specialize this framework for a few particular circumstances: |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2911 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2912 | - If there are no catch blocks, then we avoid emitting the second |
| 2913 | exception handling context. |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2914 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2915 | - If there is a catch-all catch block (i.e. @catch(...) or @catch(id |
| 2916 | e)) we avoid emitting the code to rethrow an uncaught exception. |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2917 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2918 | - FIXME: If there is no @finally block we can do a few more |
| 2919 | simplifications. |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2920 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2921 | Rethrows and Jumps-Through-Finally |
| 2922 | -- |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2923 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2924 | '@throw;' is supported by pushing the currently-caught exception |
| 2925 | onto ObjCEHStack while the @catch blocks are emitted. |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2926 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2927 | Branches through the @finally block are handled with an ordinary |
| 2928 | normal cleanup. We do not register an EH cleanup; fragile-ABI ObjC |
| 2929 | exceptions are not compatible with C++ exceptions, and this is |
| 2930 | hardly the only place where this will go wrong. |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2931 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2932 | @synchronized(expr) { stmt; } is emitted as if it were: |
| 2933 | id synch_value = expr; |
| 2934 | objc_sync_enter(synch_value); |
| 2935 | @try { stmt; } @finally { objc_sync_exit(synch_value); } |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2936 | */ |
| 2937 | |
Fariborz Jahanian | bd71be4 | 2008-11-21 00:49:24 +0000 | [diff] [blame] | 2938 | void CGObjCMac::EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, |
| 2939 | const Stmt &S) { |
| 2940 | bool isTry = isa<ObjCAtTryStmt>(S); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2941 | |
| 2942 | // A destination for the fall-through edges of the catch handlers to |
| 2943 | // jump to. |
| 2944 | CodeGenFunction::JumpDest FinallyEnd = |
| 2945 | CGF.getJumpDestInCurrentScope("finally.end"); |
| 2946 | |
| 2947 | // A destination for the rethrow edge of the catch handlers to jump |
| 2948 | // to. |
| 2949 | CodeGenFunction::JumpDest FinallyRethrow = |
| 2950 | CGF.getJumpDestInCurrentScope("finally.rethrow"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2951 | |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 2952 | // For @synchronized, call objc_sync_enter(sync.expr). The |
| 2953 | // evaluation of the expression must occur before we enter the |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2954 | // @synchronized. We can't avoid a temp here because we need the |
| 2955 | // value to be preserved. If the backend ever does liveness |
| 2956 | // correctly after setjmp, this will be unnecessary. |
| 2957 | llvm::Value *SyncArgSlot = 0; |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 2958 | if (!isTry) { |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2959 | llvm::Value *SyncArg = |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 2960 | CGF.EmitScalarExpr(cast<ObjCAtSynchronizedStmt>(S).getSynchExpr()); |
| 2961 | SyncArg = CGF.Builder.CreateBitCast(SyncArg, ObjCTypes.ObjectPtrTy); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2962 | CGF.Builder.CreateCall(ObjCTypes.getSyncEnterFn(), SyncArg) |
| 2963 | ->setDoesNotThrow(); |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2964 | |
| 2965 | SyncArgSlot = CGF.CreateTempAlloca(SyncArg->getType(), "sync.arg"); |
| 2966 | CGF.Builder.CreateStore(SyncArg, SyncArgSlot); |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 2967 | } |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2968 | |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2969 | // Allocate memory for the setjmp buffer. This needs to be kept |
| 2970 | // live throughout the try and catch blocks. |
| 2971 | llvm::Value *ExceptionData = CGF.CreateTempAlloca(ObjCTypes.ExceptionDataTy, |
| 2972 | "exceptiondata.ptr"); |
| 2973 | |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 2974 | // Create the fragile hazards. Note that this will not capture any |
| 2975 | // of the allocas required for exception processing, but will |
| 2976 | // capture the current basic block (which extends all the way to the |
| 2977 | // setjmp call) as "before the @try". |
| 2978 | FragileHazards Hazards(CGF); |
| 2979 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2980 | // Create a flag indicating whether the cleanup needs to call |
| 2981 | // objc_exception_try_exit. This is true except when |
| 2982 | // - no catches match and we're branching through the cleanup |
| 2983 | // just to rethrow the exception, or |
| 2984 | // - a catch matched and we're falling out of the catch handler. |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2985 | // The setjmp-safety rule here is that we should always store to this |
| 2986 | // variable in a place that dominates the branch through the cleanup |
| 2987 | // without passing through any setjmps. |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2988 | llvm::Value *CallTryExitVar = CGF.CreateTempAlloca(CGF.Builder.getInt1Ty(), |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2989 | "_call_try_exit"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2990 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2991 | // Push a normal cleanup to leave the try scope. |
John McCall | 1f0fca5 | 2010-07-21 07:22:38 +0000 | [diff] [blame] | 2992 | CGF.EHStack.pushCleanup<PerformFragileFinally>(NormalCleanup, &S, |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 2993 | SyncArgSlot, |
John McCall | 1f0fca5 | 2010-07-21 07:22:38 +0000 | [diff] [blame] | 2994 | CallTryExitVar, |
| 2995 | ExceptionData, |
| 2996 | &ObjCTypes); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 2997 | |
| 2998 | // Enter a try block: |
| 2999 | // - Call objc_exception_try_enter to push ExceptionData on top of |
| 3000 | // the EH stack. |
| 3001 | CGF.Builder.CreateCall(ObjCTypes.getExceptionTryEnterFn(), ExceptionData) |
| 3002 | ->setDoesNotThrow(); |
| 3003 | |
| 3004 | // - Call setjmp on the exception data buffer. |
| 3005 | llvm::Constant *Zero = llvm::ConstantInt::get(CGF.Builder.getInt32Ty(), 0); |
| 3006 | llvm::Value *GEPIndexes[] = { Zero, Zero, Zero }; |
| 3007 | llvm::Value *SetJmpBuffer = |
| 3008 | CGF.Builder.CreateGEP(ExceptionData, GEPIndexes, GEPIndexes+3, "setjmp_buffer"); |
| 3009 | llvm::CallInst *SetJmpResult = |
| 3010 | CGF.Builder.CreateCall(ObjCTypes.getSetJmpFn(), SetJmpBuffer, "setjmp_result"); |
| 3011 | SetJmpResult->setDoesNotThrow(); |
| 3012 | |
| 3013 | // If setjmp returned 0, enter the protected block; otherwise, |
| 3014 | // branch to the handler. |
Daniel Dunbar | 55e8742 | 2008-11-11 02:29:29 +0000 | [diff] [blame] | 3015 | llvm::BasicBlock *TryBlock = CGF.createBasicBlock("try"); |
| 3016 | llvm::BasicBlock *TryHandler = CGF.createBasicBlock("try.handler"); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3017 | llvm::Value *DidCatch = |
| 3018 | CGF.Builder.CreateIsNull(SetJmpResult, "did_catch_exception"); |
| 3019 | CGF.Builder.CreateCondBr(DidCatch, TryBlock, TryHandler); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3020 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3021 | // Emit the protected block. |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3022 | CGF.EmitBlock(TryBlock); |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3023 | CGF.Builder.CreateStore(CGF.Builder.getTrue(), CallTryExitVar); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3024 | CGF.EmitStmt(isTry ? cast<ObjCAtTryStmt>(S).getTryBody() |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3025 | : cast<ObjCAtSynchronizedStmt>(S).getSynchBody()); |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3026 | |
| 3027 | CGBuilderTy::InsertPoint TryFallthroughIP = CGF.Builder.saveAndClearIP(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3028 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3029 | // Emit the exception handler block. |
Daniel Dunbar | e4b5ee0 | 2008-09-27 23:30:04 +0000 | [diff] [blame] | 3030 | CGF.EmitBlock(TryHandler); |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 3031 | |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 3032 | // Don't optimize loads of the in-scope locals across this point. |
| 3033 | Hazards.emitWriteHazard(); |
| 3034 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3035 | // For a @synchronized (or a @try with no catches), just branch |
| 3036 | // through the cleanup to the rethrow block. |
| 3037 | if (!isTry || !cast<ObjCAtTryStmt>(S).getNumCatchStmts()) { |
| 3038 | // Tell the cleanup not to re-pop the exit. |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3039 | CGF.Builder.CreateStore(CGF.Builder.getFalse(), CallTryExitVar); |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 3040 | CGF.EmitBranchThroughCleanup(FinallyRethrow); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3041 | |
| 3042 | // Otherwise, we have to match against the caught exceptions. |
| 3043 | } else { |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3044 | // Retrieve the exception object. We may emit multiple blocks but |
| 3045 | // nothing can cross this so the value is already in SSA form. |
| 3046 | llvm::CallInst *Caught = |
| 3047 | CGF.Builder.CreateCall(ObjCTypes.getExceptionExtractFn(), |
| 3048 | ExceptionData, "caught"); |
| 3049 | Caught->setDoesNotThrow(); |
| 3050 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3051 | // Push the exception to rethrow onto the EH value stack for the |
| 3052 | // benefit of any @throws in the handlers. |
| 3053 | CGF.ObjCEHValueStack.push_back(Caught); |
| 3054 | |
Douglas Gregor | 8f5e3dd | 2010-04-23 22:50:49 +0000 | [diff] [blame] | 3055 | const ObjCAtTryStmt* AtTryStmt = cast<ObjCAtTryStmt>(&S); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3056 | |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3057 | bool HasFinally = (AtTryStmt->getFinallyStmt() != 0); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3058 | |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3059 | llvm::BasicBlock *CatchBlock = 0; |
| 3060 | llvm::BasicBlock *CatchHandler = 0; |
| 3061 | if (HasFinally) { |
| 3062 | // Enter a new exception try block (in case a @catch block |
| 3063 | // throws an exception). |
| 3064 | CGF.Builder.CreateCall(ObjCTypes.getExceptionTryEnterFn(), ExceptionData) |
| 3065 | ->setDoesNotThrow(); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3066 | |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3067 | llvm::CallInst *SetJmpResult = |
| 3068 | CGF.Builder.CreateCall(ObjCTypes.getSetJmpFn(), SetJmpBuffer, |
| 3069 | "setjmp.result"); |
| 3070 | SetJmpResult->setDoesNotThrow(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3071 | |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3072 | llvm::Value *Threw = |
| 3073 | CGF.Builder.CreateIsNotNull(SetJmpResult, "did_catch_exception"); |
| 3074 | |
| 3075 | CatchBlock = CGF.createBasicBlock("catch"); |
| 3076 | CatchHandler = CGF.createBasicBlock("catch_for_catch"); |
| 3077 | CGF.Builder.CreateCondBr(Threw, CatchHandler, CatchBlock); |
| 3078 | |
| 3079 | CGF.EmitBlock(CatchBlock); |
| 3080 | } |
| 3081 | |
| 3082 | CGF.Builder.CreateStore(CGF.Builder.getInt1(HasFinally), CallTryExitVar); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3083 | |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 3084 | // Handle catch list. As a special case we check if everything is |
| 3085 | // matched and avoid generating code for falling off the end if |
| 3086 | // so. |
| 3087 | bool AllMatched = false; |
Douglas Gregor | 8f5e3dd | 2010-04-23 22:50:49 +0000 | [diff] [blame] | 3088 | for (unsigned I = 0, N = AtTryStmt->getNumCatchStmts(); I != N; ++I) { |
| 3089 | const ObjCAtCatchStmt *CatchStmt = AtTryStmt->getCatchStmt(I); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3090 | |
Douglas Gregor | c00d8e1 | 2010-04-26 16:46:50 +0000 | [diff] [blame] | 3091 | const VarDecl *CatchParam = CatchStmt->getCatchParamDecl(); |
Steve Naroff | 14108da | 2009-07-10 23:34:53 +0000 | [diff] [blame] | 3092 | const ObjCObjectPointerType *OPT = 0; |
Daniel Dunbar | 129271a | 2008-09-27 07:36:24 +0000 | [diff] [blame] | 3093 | |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3094 | // catch(...) always matches. |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 3095 | if (!CatchParam) { |
| 3096 | AllMatched = true; |
| 3097 | } else { |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 3098 | OPT = CatchParam->getType()->getAs<ObjCObjectPointerType>(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3099 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3100 | // catch(id e) always matches under this ABI, since only |
| 3101 | // ObjC exceptions end up here in the first place. |
Daniel Dunbar | 97f61d1 | 2008-09-27 22:21:14 +0000 | [diff] [blame] | 3102 | // FIXME: For the time being we also match id<X>; this should |
| 3103 | // be rejected by Sema instead. |
Eli Friedman | 818e96f | 2009-07-11 00:57:02 +0000 | [diff] [blame] | 3104 | if (OPT && (OPT->isObjCIdType() || OPT->isObjCQualifiedIdType())) |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 3105 | AllMatched = true; |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3106 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3107 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3108 | // If this is a catch-all, we don't need to test anything. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3109 | if (AllMatched) { |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3110 | CodeGenFunction::RunCleanupsScope CatchVarCleanups(CGF); |
| 3111 | |
Anders Carlsson | dde0a94 | 2008-09-11 09:15:33 +0000 | [diff] [blame] | 3112 | if (CatchParam) { |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 3113 | CGF.EmitLocalBlockVarDecl(*CatchParam); |
Daniel Dunbar | a448fb2 | 2008-11-11 23:11:34 +0000 | [diff] [blame] | 3114 | assert(CGF.HaveInsertPoint() && "DeclStmt destroyed insert point?"); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3115 | |
| 3116 | // These types work out because ConvertType(id) == i8*. |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 3117 | CGF.Builder.CreateStore(Caught, CGF.GetAddrOfLocalVar(CatchParam)); |
Anders Carlsson | dde0a94 | 2008-09-11 09:15:33 +0000 | [diff] [blame] | 3118 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3119 | |
Anders Carlsson | dde0a94 | 2008-09-11 09:15:33 +0000 | [diff] [blame] | 3120 | CGF.EmitStmt(CatchStmt->getCatchBody()); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3121 | |
| 3122 | // The scope of the catch variable ends right here. |
| 3123 | CatchVarCleanups.ForceCleanup(); |
| 3124 | |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 3125 | CGF.EmitBranchThroughCleanup(FinallyEnd); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3126 | break; |
| 3127 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3128 | |
Steve Naroff | 14108da | 2009-07-10 23:34:53 +0000 | [diff] [blame] | 3129 | assert(OPT && "Unexpected non-object pointer type in @catch"); |
John McCall | 506b57e | 2010-05-17 21:00:27 +0000 | [diff] [blame] | 3130 | const ObjCObjectType *ObjTy = OPT->getObjectType(); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3131 | |
| 3132 | // FIXME: @catch (Class c) ? |
John McCall | 506b57e | 2010-05-17 21:00:27 +0000 | [diff] [blame] | 3133 | ObjCInterfaceDecl *IDecl = ObjTy->getInterface(); |
| 3134 | assert(IDecl && "Catch parameter must have Objective-C type!"); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3135 | |
| 3136 | // Check if the @catch block matches the exception object. |
John McCall | 506b57e | 2010-05-17 21:00:27 +0000 | [diff] [blame] | 3137 | llvm::Value *Class = EmitClassRef(CGF.Builder, IDecl); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3138 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3139 | llvm::CallInst *Match = |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 3140 | CGF.Builder.CreateCall2(ObjCTypes.getExceptionMatchFn(), |
| 3141 | Class, Caught, "match"); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3142 | Match->setDoesNotThrow(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3143 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3144 | llvm::BasicBlock *MatchedBlock = CGF.createBasicBlock("match"); |
| 3145 | llvm::BasicBlock *NextCatchBlock = CGF.createBasicBlock("catch.next"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3146 | |
| 3147 | CGF.Builder.CreateCondBr(CGF.Builder.CreateIsNotNull(Match, "matched"), |
Daniel Dunbar | e4b5ee0 | 2008-09-27 23:30:04 +0000 | [diff] [blame] | 3148 | MatchedBlock, NextCatchBlock); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3149 | |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3150 | // Emit the @catch block. |
| 3151 | CGF.EmitBlock(MatchedBlock); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3152 | |
| 3153 | // Collect any cleanups for the catch variable. The scope lasts until |
| 3154 | // the end of the catch body. |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3155 | CodeGenFunction::RunCleanupsScope CatchVarCleanups(CGF); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3156 | |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 3157 | CGF.EmitLocalBlockVarDecl(*CatchParam); |
Daniel Dunbar | a448fb2 | 2008-11-11 23:11:34 +0000 | [diff] [blame] | 3158 | assert(CGF.HaveInsertPoint() && "DeclStmt destroyed insert point?"); |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 3159 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3160 | // Initialize the catch variable. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3161 | llvm::Value *Tmp = |
| 3162 | CGF.Builder.CreateBitCast(Caught, |
| 3163 | CGF.ConvertType(CatchParam->getType()), |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 3164 | "tmp"); |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 3165 | CGF.Builder.CreateStore(Tmp, CGF.GetAddrOfLocalVar(CatchParam)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3166 | |
Anders Carlsson | dde0a94 | 2008-09-11 09:15:33 +0000 | [diff] [blame] | 3167 | CGF.EmitStmt(CatchStmt->getCatchBody()); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3168 | |
| 3169 | // We're done with the catch variable. |
| 3170 | CatchVarCleanups.ForceCleanup(); |
| 3171 | |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 3172 | CGF.EmitBranchThroughCleanup(FinallyEnd); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3173 | |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3174 | CGF.EmitBlock(NextCatchBlock); |
| 3175 | } |
| 3176 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3177 | CGF.ObjCEHValueStack.pop_back(); |
| 3178 | |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3179 | // If nothing wanted anything to do with the caught exception, |
| 3180 | // kill the extract call. |
| 3181 | if (Caught->use_empty()) |
| 3182 | Caught->eraseFromParent(); |
| 3183 | |
| 3184 | if (!AllMatched) |
| 3185 | CGF.EmitBranchThroughCleanup(FinallyRethrow); |
| 3186 | |
| 3187 | if (HasFinally) { |
| 3188 | // Emit the exception handler for the @catch blocks. |
| 3189 | CGF.EmitBlock(CatchHandler); |
| 3190 | |
| 3191 | // In theory we might now need a write hazard, but actually it's |
| 3192 | // unnecessary because there's no local-accessing code between |
| 3193 | // the try's write hazard and here. |
| 3194 | //Hazards.emitWriteHazard(); |
| 3195 | |
| 3196 | // Don't pop the catch handler; the throw already did. |
| 3197 | CGF.Builder.CreateStore(CGF.Builder.getFalse(), CallTryExitVar); |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 3198 | CGF.EmitBranchThroughCleanup(FinallyRethrow); |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 3199 | } |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3200 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3201 | |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 3202 | // Insert read hazards as required in the new blocks. |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3203 | Hazards.emitHazardsInNewBlocks(); |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 3204 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3205 | // Pop the cleanup. |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3206 | CGF.Builder.restoreIP(TryFallthroughIP); |
| 3207 | if (CGF.HaveInsertPoint()) |
| 3208 | CGF.Builder.CreateStore(CGF.Builder.getTrue(), CallTryExitVar); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3209 | CGF.PopCleanupBlock(); |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3210 | CGF.EmitBlock(FinallyEnd.getBlock(), true); |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 3211 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3212 | // Emit the rethrow block. |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 3213 | CGBuilderTy::InsertPoint SavedIP = CGF.Builder.saveAndClearIP(); |
John McCall | ff8e115 | 2010-07-23 21:56:41 +0000 | [diff] [blame] | 3214 | CGF.EmitBlock(FinallyRethrow.getBlock(), true); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3215 | if (CGF.HaveInsertPoint()) { |
John McCall | 0b25172 | 2010-08-04 05:59:32 +0000 | [diff] [blame] | 3216 | // Just look in the buffer for the exception to throw. |
| 3217 | llvm::CallInst *Caught = |
| 3218 | CGF.Builder.CreateCall(ObjCTypes.getExceptionExtractFn(), |
| 3219 | ExceptionData); |
| 3220 | Caught->setDoesNotThrow(); |
| 3221 | |
| 3222 | CGF.Builder.CreateCall(ObjCTypes.getExceptionThrowFn(), Caught) |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3223 | ->setDoesNotThrow(); |
| 3224 | CGF.Builder.CreateUnreachable(); |
Fariborz Jahanian | f2878e5 | 2008-11-21 19:21:53 +0000 | [diff] [blame] | 3225 | } |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3226 | |
John McCall | 87bb582 | 2010-07-31 23:20:56 +0000 | [diff] [blame] | 3227 | CGF.Builder.restoreIP(SavedIP); |
Anders Carlsson | 64d5d6c | 2008-09-09 10:04:29 +0000 | [diff] [blame] | 3228 | } |
| 3229 | |
| 3230 | void CGObjCMac::EmitThrowStmt(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 3231 | const ObjCAtThrowStmt &S) { |
Anders Carlsson | 2b1e311 | 2008-09-09 16:16:55 +0000 | [diff] [blame] | 3232 | llvm::Value *ExceptionAsObject; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3233 | |
Anders Carlsson | 2b1e311 | 2008-09-09 16:16:55 +0000 | [diff] [blame] | 3234 | if (const Expr *ThrowExpr = S.getThrowExpr()) { |
| 3235 | llvm::Value *Exception = CGF.EmitScalarExpr(ThrowExpr); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3236 | ExceptionAsObject = |
Anders Carlsson | 2b1e311 | 2008-09-09 16:16:55 +0000 | [diff] [blame] | 3237 | CGF.Builder.CreateBitCast(Exception, ObjCTypes.ObjectPtrTy, "tmp"); |
| 3238 | } else { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3239 | assert((!CGF.ObjCEHValueStack.empty() && CGF.ObjCEHValueStack.back()) && |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 3240 | "Unexpected rethrow outside @catch block."); |
Anders Carlsson | 273558f | 2009-02-07 21:37:21 +0000 | [diff] [blame] | 3241 | ExceptionAsObject = CGF.ObjCEHValueStack.back(); |
Anders Carlsson | 2b1e311 | 2008-09-09 16:16:55 +0000 | [diff] [blame] | 3242 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3243 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 3244 | CGF.Builder.CreateCall(ObjCTypes.getExceptionThrowFn(), ExceptionAsObject) |
| 3245 | ->setDoesNotReturn(); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 3246 | CGF.Builder.CreateUnreachable(); |
Daniel Dunbar | a448fb2 | 2008-11-11 23:11:34 +0000 | [diff] [blame] | 3247 | |
| 3248 | // Clear the insertion point to indicate we are in unreachable code. |
| 3249 | CGF.Builder.ClearInsertionPoint(); |
Anders Carlsson | 64d5d6c | 2008-09-09 10:04:29 +0000 | [diff] [blame] | 3250 | } |
| 3251 | |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 3252 | /// EmitObjCWeakRead - Code gen for loading value of a __weak |
Fariborz Jahanian | 6dc2317 | 2008-11-18 21:45:40 +0000 | [diff] [blame] | 3253 | /// object: objc_read_weak (id *src) |
| 3254 | /// |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 3255 | llvm::Value * CGObjCMac::EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3256 | llvm::Value *AddrWeakObj) { |
Eli Friedman | 8339b35 | 2009-03-07 03:57:15 +0000 | [diff] [blame] | 3257 | const llvm::Type* DestTy = |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3258 | cast<llvm::PointerType>(AddrWeakObj->getType())->getElementType(); |
| 3259 | AddrWeakObj = CGF.Builder.CreateBitCast(AddrWeakObj, |
| 3260 | ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 3261 | llvm::Value *read_weak = CGF.Builder.CreateCall(ObjCTypes.getGcReadWeakFn(), |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 3262 | AddrWeakObj, "weakread"); |
Eli Friedman | 8339b35 | 2009-03-07 03:57:15 +0000 | [diff] [blame] | 3263 | read_weak = CGF.Builder.CreateBitCast(read_weak, DestTy); |
Fariborz Jahanian | 6dc2317 | 2008-11-18 21:45:40 +0000 | [diff] [blame] | 3264 | return read_weak; |
| 3265 | } |
| 3266 | |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 3267 | /// EmitObjCWeakAssign - Code gen for assigning to a __weak object. |
| 3268 | /// objc_assign_weak (id src, id *dst) |
| 3269 | /// |
| 3270 | void CGObjCMac::EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3271 | llvm::Value *src, llvm::Value *dst) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 3272 | const llvm::Type * SrcTy = src->getType(); |
| 3273 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 3274 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 3275 | assert(Size <= 8 && "does not support size > 8"); |
| 3276 | src = (Size == 4) ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3277 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongLongTy); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 3278 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 3279 | } |
Fariborz Jahanian | dbd32c2 | 2008-11-19 17:34:06 +0000 | [diff] [blame] | 3280 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 3281 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | 96508e1 | 2009-04-17 22:12:36 +0000 | [diff] [blame] | 3282 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignWeakFn(), |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 3283 | src, dst, "weakassign"); |
| 3284 | return; |
| 3285 | } |
| 3286 | |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 3287 | /// EmitObjCGlobalAssign - Code gen for assigning to a __strong object. |
| 3288 | /// objc_assign_global (id src, id *dst) |
| 3289 | /// |
| 3290 | void CGObjCMac::EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 021a7a6 | 2010-07-20 20:30:03 +0000 | [diff] [blame] | 3291 | llvm::Value *src, llvm::Value *dst, |
| 3292 | bool threadlocal) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 3293 | const llvm::Type * SrcTy = src->getType(); |
| 3294 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 3295 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 3296 | assert(Size <= 8 && "does not support size > 8"); |
| 3297 | src = (Size == 4) ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3298 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongLongTy); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 3299 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 3300 | } |
Fariborz Jahanian | dbd32c2 | 2008-11-19 17:34:06 +0000 | [diff] [blame] | 3301 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 3302 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Fariborz Jahanian | 021a7a6 | 2010-07-20 20:30:03 +0000 | [diff] [blame] | 3303 | if (!threadlocal) |
| 3304 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignGlobalFn(), |
| 3305 | src, dst, "globalassign"); |
| 3306 | else |
| 3307 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignThreadLocalFn(), |
| 3308 | src, dst, "threadlocalassign"); |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 3309 | return; |
| 3310 | } |
| 3311 | |
Fariborz Jahanian | 7eda836 | 2008-11-20 19:23:36 +0000 | [diff] [blame] | 3312 | /// EmitObjCIvarAssign - Code gen for assigning to a __strong object. |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 3313 | /// objc_assign_ivar (id src, id *dst, ptrdiff_t ivaroffset) |
Fariborz Jahanian | 7eda836 | 2008-11-20 19:23:36 +0000 | [diff] [blame] | 3314 | /// |
| 3315 | void CGObjCMac::EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 3316 | llvm::Value *src, llvm::Value *dst, |
| 3317 | llvm::Value *ivarOffset) { |
| 3318 | assert(ivarOffset && "EmitObjCIvarAssign - ivarOffset is NULL"); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 3319 | const llvm::Type * SrcTy = src->getType(); |
| 3320 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 3321 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 3322 | assert(Size <= 8 && "does not support size > 8"); |
| 3323 | src = (Size == 4) ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3324 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongLongTy); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 3325 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 3326 | } |
Fariborz Jahanian | 7eda836 | 2008-11-20 19:23:36 +0000 | [diff] [blame] | 3327 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 3328 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 3329 | CGF.Builder.CreateCall3(ObjCTypes.getGcAssignIvarFn(), |
| 3330 | src, dst, ivarOffset); |
Fariborz Jahanian | 7eda836 | 2008-11-20 19:23:36 +0000 | [diff] [blame] | 3331 | return; |
| 3332 | } |
| 3333 | |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 3334 | /// EmitObjCStrongCastAssign - Code gen for assigning to a __strong cast object. |
| 3335 | /// objc_assign_strongCast (id src, id *dst) |
| 3336 | /// |
| 3337 | void CGObjCMac::EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3338 | llvm::Value *src, llvm::Value *dst) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 3339 | const llvm::Type * SrcTy = src->getType(); |
| 3340 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 3341 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 3342 | assert(Size <= 8 && "does not support size > 8"); |
| 3343 | src = (Size == 4) ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3344 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongLongTy); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 3345 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 3346 | } |
Fariborz Jahanian | dbd32c2 | 2008-11-19 17:34:06 +0000 | [diff] [blame] | 3347 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 3348 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 3349 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignStrongCastFn(), |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 3350 | src, dst, "weakassign"); |
| 3351 | return; |
| 3352 | } |
| 3353 | |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 3354 | void CGObjCMac::EmitGCMemmoveCollectable(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3355 | llvm::Value *DestPtr, |
| 3356 | llvm::Value *SrcPtr, |
Fariborz Jahanian | 55bcace | 2010-06-15 22:44:06 +0000 | [diff] [blame] | 3357 | llvm::Value *size) { |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 3358 | SrcPtr = CGF.Builder.CreateBitCast(SrcPtr, ObjCTypes.Int8PtrTy); |
| 3359 | DestPtr = CGF.Builder.CreateBitCast(DestPtr, ObjCTypes.Int8PtrTy); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 3360 | CGF.Builder.CreateCall3(ObjCTypes.GcMemmoveCollectableFn(), |
Fariborz Jahanian | 55bcace | 2010-06-15 22:44:06 +0000 | [diff] [blame] | 3361 | DestPtr, SrcPtr, size); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 3362 | return; |
| 3363 | } |
| 3364 | |
Fariborz Jahanian | 0bb2036 | 2009-02-02 20:02:29 +0000 | [diff] [blame] | 3365 | /// EmitObjCValueForIvar - Code Gen for ivar reference. |
| 3366 | /// |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 3367 | LValue CGObjCMac::EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF, |
| 3368 | QualType ObjectTy, |
| 3369 | llvm::Value *BaseValue, |
| 3370 | const ObjCIvarDecl *Ivar, |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 3371 | unsigned CVRQualifiers) { |
John McCall | c12c5bb | 2010-05-15 11:32:37 +0000 | [diff] [blame] | 3372 | const ObjCInterfaceDecl *ID = |
| 3373 | ObjectTy->getAs<ObjCObjectType>()->getInterface(); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 3374 | return EmitValueForIvarAtOffset(CGF, ID, BaseValue, Ivar, CVRQualifiers, |
| 3375 | EmitIvarOffset(CGF, ID, Ivar)); |
Fariborz Jahanian | 0bb2036 | 2009-02-02 20:02:29 +0000 | [diff] [blame] | 3376 | } |
| 3377 | |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 3378 | llvm::Value *CGObjCMac::EmitIvarOffset(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 2a03192 | 2009-04-22 05:08:15 +0000 | [diff] [blame] | 3379 | const ObjCInterfaceDecl *Interface, |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 3380 | const ObjCIvarDecl *Ivar) { |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 3381 | uint64_t Offset = ComputeIvarBaseOffset(CGM, Interface, Ivar); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 3382 | return llvm::ConstantInt::get( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3383 | CGM.getTypes().ConvertType(CGM.getContext().LongTy), |
| 3384 | Offset); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 3385 | } |
| 3386 | |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 3387 | /* *** Private Interface *** */ |
| 3388 | |
| 3389 | /// EmitImageInfo - Emit the image info marker used to encode some module |
| 3390 | /// level information. |
| 3391 | /// |
| 3392 | /// See: <rdr://4810609&4810587&4810587> |
| 3393 | /// struct IMAGE_INFO { |
| 3394 | /// unsigned version; |
| 3395 | /// unsigned flags; |
| 3396 | /// }; |
| 3397 | enum ImageInfoFlags { |
Daniel Dunbar | fce176b | 2010-04-25 20:39:01 +0000 | [diff] [blame] | 3398 | eImageInfo_FixAndContinue = (1 << 0), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3399 | eImageInfo_GarbageCollected = (1 << 1), |
| 3400 | eImageInfo_GCOnly = (1 << 2), |
Daniel Dunbar | c7c6dc0 | 2009-04-20 07:11:47 +0000 | [diff] [blame] | 3401 | eImageInfo_OptimizedByDyld = (1 << 3), // FIXME: When is this set. |
| 3402 | |
Daniel Dunbar | fce176b | 2010-04-25 20:39:01 +0000 | [diff] [blame] | 3403 | // A flag indicating that the module has no instances of a @synthesize of a |
| 3404 | // superclass variable. <rdar://problem/6803242> |
Daniel Dunbar | c7c6dc0 | 2009-04-20 07:11:47 +0000 | [diff] [blame] | 3405 | eImageInfo_CorrectedSynthesize = (1 << 4) |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 3406 | }; |
| 3407 | |
Daniel Dunbar | fce176b | 2010-04-25 20:39:01 +0000 | [diff] [blame] | 3408 | void CGObjCCommonMac::EmitImageInfo() { |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 3409 | unsigned version = 0; // Version is unused? |
| 3410 | unsigned flags = 0; |
| 3411 | |
| 3412 | // FIXME: Fix and continue? |
| 3413 | if (CGM.getLangOptions().getGCMode() != LangOptions::NonGC) |
| 3414 | flags |= eImageInfo_GarbageCollected; |
| 3415 | if (CGM.getLangOptions().getGCMode() == LangOptions::GCOnly) |
| 3416 | flags |= eImageInfo_GCOnly; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3417 | |
Daniel Dunbar | c7c6dc0 | 2009-04-20 07:11:47 +0000 | [diff] [blame] | 3418 | // We never allow @synthesize of a superclass property. |
| 3419 | flags |= eImageInfo_CorrectedSynthesize; |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 3420 | |
Chris Lattner | 77b89b8 | 2010-06-27 07:15:29 +0000 | [diff] [blame] | 3421 | const llvm::Type *Int32Ty = llvm::Type::getInt32Ty(VMContext); |
| 3422 | |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 3423 | // Emitted as int[2]; |
| 3424 | llvm::Constant *values[2] = { |
Chris Lattner | 77b89b8 | 2010-06-27 07:15:29 +0000 | [diff] [blame] | 3425 | llvm::ConstantInt::get(Int32Ty, version), |
| 3426 | llvm::ConstantInt::get(Int32Ty, flags) |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 3427 | }; |
Chris Lattner | 77b89b8 | 2010-06-27 07:15:29 +0000 | [diff] [blame] | 3428 | llvm::ArrayType *AT = llvm::ArrayType::get(Int32Ty, 2); |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3429 | |
| 3430 | const char *Section; |
| 3431 | if (ObjCABI == 1) |
| 3432 | Section = "__OBJC, __image_info,regular"; |
| 3433 | else |
| 3434 | Section = "__DATA, __objc_imageinfo, regular, no_dead_strip"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3435 | llvm::GlobalVariable *GV = |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3436 | CreateMetadataVar("\01L_OBJC_IMAGE_INFO", |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 3437 | llvm::ConstantArray::get(AT, values, 2), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3438 | Section, |
| 3439 | 0, |
| 3440 | true); |
| 3441 | GV->setConstant(true); |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 3442 | } |
| 3443 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3444 | |
| 3445 | // struct objc_module { |
| 3446 | // unsigned long version; |
| 3447 | // unsigned long size; |
| 3448 | // const char *name; |
| 3449 | // Symtab symtab; |
| 3450 | // }; |
| 3451 | |
| 3452 | // FIXME: Get from somewhere |
| 3453 | static const int ModuleVersion = 7; |
| 3454 | |
| 3455 | void CGObjCMac::EmitModuleInfo() { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 3456 | uint64_t Size = CGM.getTargetData().getTypeAllocSize(ObjCTypes.ModuleTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3457 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3458 | std::vector<llvm::Constant*> Values(4); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 3459 | Values[0] = llvm::ConstantInt::get(ObjCTypes.LongTy, ModuleVersion); |
| 3460 | Values[1] = llvm::ConstantInt::get(ObjCTypes.LongTy, Size); |
Daniel Dunbar | 7ded7f4 | 2008-08-15 22:20:32 +0000 | [diff] [blame] | 3461 | // This used to be the filename, now it is unused. <rdr://4327263> |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3462 | Values[2] = GetClassName(&CGM.getContext().Idents.get("")); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3463 | Values[3] = EmitModuleSymbols(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3464 | CreateMetadataVar("\01L_OBJC_MODULES", |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 3465 | llvm::ConstantStruct::get(ObjCTypes.ModuleTy, Values), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3466 | "__OBJC,__module_info,regular,no_dead_strip", |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 3467 | 4, true); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3468 | } |
| 3469 | |
| 3470 | llvm::Constant *CGObjCMac::EmitModuleSymbols() { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3471 | unsigned NumClasses = DefinedClasses.size(); |
| 3472 | unsigned NumCategories = DefinedCategories.size(); |
| 3473 | |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 3474 | // Return null if no symbols were defined. |
| 3475 | if (!NumClasses && !NumCategories) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 3476 | return llvm::Constant::getNullValue(ObjCTypes.SymtabPtrTy); |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 3477 | |
| 3478 | std::vector<llvm::Constant*> Values(5); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 3479 | Values[0] = llvm::ConstantInt::get(ObjCTypes.LongTy, 0); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 3480 | Values[1] = llvm::Constant::getNullValue(ObjCTypes.SelectorPtrTy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 3481 | Values[2] = llvm::ConstantInt::get(ObjCTypes.ShortTy, NumClasses); |
| 3482 | Values[3] = llvm::ConstantInt::get(ObjCTypes.ShortTy, NumCategories); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3483 | |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 3484 | // The runtime expects exactly the list of defined classes followed |
| 3485 | // by the list of defined categories, in a single array. |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3486 | std::vector<llvm::Constant*> Symbols(NumClasses + NumCategories); |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 3487 | for (unsigned i=0; i<NumClasses; i++) |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 3488 | Symbols[i] = llvm::ConstantExpr::getBitCast(DefinedClasses[i], |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 3489 | ObjCTypes.Int8PtrTy); |
| 3490 | for (unsigned i=0; i<NumCategories; i++) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3491 | Symbols[NumClasses + i] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 3492 | llvm::ConstantExpr::getBitCast(DefinedCategories[i], |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 3493 | ObjCTypes.Int8PtrTy); |
| 3494 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3495 | Values[4] = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3496 | llvm::ConstantArray::get(llvm::ArrayType::get(ObjCTypes.Int8PtrTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3497 | NumClasses + NumCategories), |
| 3498 | Symbols); |
| 3499 | |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 3500 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3501 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3502 | llvm::GlobalVariable *GV = |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3503 | CreateMetadataVar("\01L_OBJC_SYMBOLS", Init, |
| 3504 | "__OBJC,__symbols,regular,no_dead_strip", |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 3505 | 4, true); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 3506 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.SymtabPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3507 | } |
| 3508 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3509 | llvm::Value *CGObjCMac::EmitClassRef(CGBuilderTy &Builder, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3510 | const ObjCInterfaceDecl *ID) { |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 3511 | LazySymbols.insert(ID->getIdentifier()); |
| 3512 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3513 | llvm::GlobalVariable *&Entry = ClassReferences[ID->getIdentifier()]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3514 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3515 | if (!Entry) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3516 | llvm::Constant *Casted = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 3517 | llvm::ConstantExpr::getBitCast(GetClassName(ID->getIdentifier()), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3518 | ObjCTypes.ClassPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3519 | Entry = |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3520 | CreateMetadataVar("\01L_OBJC_CLASS_REFERENCES_", Casted, |
| 3521 | "__OBJC,__cls_refs,literal_pointers,no_dead_strip", |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 3522 | 4, true); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3523 | } |
| 3524 | |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 3525 | return Builder.CreateLoad(Entry, "tmp"); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3526 | } |
| 3527 | |
Fariborz Jahanian | 03b2960 | 2010-06-17 19:56:20 +0000 | [diff] [blame] | 3528 | llvm::Value *CGObjCMac::EmitSelector(CGBuilderTy &Builder, Selector Sel, |
| 3529 | bool lvalue) { |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3530 | llvm::GlobalVariable *&Entry = SelectorReferences[Sel]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3531 | |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3532 | if (!Entry) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3533 | llvm::Constant *Casted = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 3534 | llvm::ConstantExpr::getBitCast(GetMethodVarName(Sel), |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3535 | ObjCTypes.SelectorPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3536 | Entry = |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3537 | CreateMetadataVar("\01L_OBJC_SELECTOR_REFERENCES_", Casted, |
| 3538 | "__OBJC,__message_refs,literal_pointers,no_dead_strip", |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 3539 | 4, true); |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3540 | } |
| 3541 | |
Fariborz Jahanian | 03b2960 | 2010-06-17 19:56:20 +0000 | [diff] [blame] | 3542 | if (lvalue) |
| 3543 | return Entry; |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 3544 | return Builder.CreateLoad(Entry, "tmp"); |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3545 | } |
| 3546 | |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 3547 | llvm::Constant *CGObjCCommonMac::GetClassName(IdentifierInfo *Ident) { |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3548 | llvm::GlobalVariable *&Entry = ClassNames[Ident]; |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3549 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3550 | if (!Entry) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3551 | Entry = CreateMetadataVar("\01L_OBJC_CLASS_NAME_", |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 3552 | llvm::ConstantArray::get(VMContext, |
| 3553 | Ident->getNameStart()), |
Daniel Dunbar | 6633e3c | 2010-07-29 22:57:21 +0000 | [diff] [blame] | 3554 | "__TEXT,__cstring,cstring_literals", |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3555 | 1, true); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3556 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3557 | return getConstantGEP(VMContext, Entry, 0, 0); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3558 | } |
| 3559 | |
Fariborz Jahanian | d80d81b | 2009-03-05 19:17:31 +0000 | [diff] [blame] | 3560 | /// GetIvarLayoutName - Returns a unique constant for the given |
| 3561 | /// ivar layout bitmap. |
| 3562 | llvm::Constant *CGObjCCommonMac::GetIvarLayoutName(IdentifierInfo *Ident, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3563 | const ObjCCommonTypesHelper &ObjCTypes) { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 3564 | return llvm::Constant::getNullValue(ObjCTypes.Int8PtrTy); |
Fariborz Jahanian | d80d81b | 2009-03-05 19:17:31 +0000 | [diff] [blame] | 3565 | } |
| 3566 | |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3567 | void CGObjCCommonMac::BuildAggrIvarRecordLayout(const RecordType *RT, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3568 | unsigned int BytePos, |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3569 | bool ForStrongLayout, |
| 3570 | bool &HasUnion) { |
| 3571 | const RecordDecl *RD = RT->getDecl(); |
| 3572 | // FIXME - Use iterator. |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 3573 | llvm::SmallVector<FieldDecl*, 16> Fields(RD->field_begin(), RD->field_end()); |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3574 | const llvm::Type *Ty = CGM.getTypes().ConvertType(QualType(RT, 0)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3575 | const llvm::StructLayout *RecLayout = |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3576 | CGM.getTargetData().getStructLayout(cast<llvm::StructType>(Ty)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3577 | |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3578 | BuildAggrIvarLayout(0, RecLayout, RD, Fields, BytePos, |
| 3579 | ForStrongLayout, HasUnion); |
| 3580 | } |
| 3581 | |
Daniel Dunbar | 5a5a803 | 2009-05-03 21:05:10 +0000 | [diff] [blame] | 3582 | void CGObjCCommonMac::BuildAggrIvarLayout(const ObjCImplementationDecl *OI, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3583 | const llvm::StructLayout *Layout, |
| 3584 | const RecordDecl *RD, |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 3585 | const llvm::SmallVectorImpl<FieldDecl*> &RecFields, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3586 | unsigned int BytePos, bool ForStrongLayout, |
| 3587 | bool &HasUnion) { |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3588 | bool IsUnion = (RD && RD->isUnion()); |
| 3589 | uint64_t MaxUnionIvarSize = 0; |
| 3590 | uint64_t MaxSkippedUnionIvarSize = 0; |
| 3591 | FieldDecl *MaxField = 0; |
| 3592 | FieldDecl *MaxSkippedField = 0; |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3593 | FieldDecl *LastFieldBitfield = 0; |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3594 | uint64_t MaxFieldOffset = 0; |
| 3595 | uint64_t MaxSkippedFieldOffset = 0; |
| 3596 | uint64_t LastBitfieldOffset = 0; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3597 | |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3598 | if (RecFields.empty()) |
| 3599 | return; |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 3600 | unsigned WordSizeInBits = CGM.getContext().Target.getPointerWidth(0); |
| 3601 | unsigned ByteSizeInBits = CGM.getContext().Target.getCharWidth(); |
| 3602 | |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 3603 | for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3604 | FieldDecl *Field = RecFields[i]; |
Daniel Dunbar | e05cc98 | 2009-05-03 23:35:23 +0000 | [diff] [blame] | 3605 | uint64_t FieldOffset; |
Anders Carlsson | fc514ab | 2009-07-24 17:23:54 +0000 | [diff] [blame] | 3606 | if (RD) { |
Daniel Dunbar | f8f8eba | 2010-04-14 17:02:21 +0000 | [diff] [blame] | 3607 | // Note that 'i' here is actually the field index inside RD of Field, |
| 3608 | // although this dependency is hidden. |
| 3609 | const ASTRecordLayout &RL = CGM.getContext().getASTRecordLayout(RD); |
| 3610 | FieldOffset = RL.getFieldOffset(i) / 8; |
Anders Carlsson | fc514ab | 2009-07-24 17:23:54 +0000 | [diff] [blame] | 3611 | } else |
Daniel Dunbar | e05cc98 | 2009-05-03 23:35:23 +0000 | [diff] [blame] | 3612 | FieldOffset = ComputeIvarBaseOffset(CGM, OI, cast<ObjCIvarDecl>(Field)); |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3613 | |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3614 | // Skip over unnamed or bitfields |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3615 | if (!Field->getIdentifier() || Field->isBitField()) { |
| 3616 | LastFieldBitfield = Field; |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3617 | LastBitfieldOffset = FieldOffset; |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3618 | continue; |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3619 | } |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3620 | |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3621 | LastFieldBitfield = 0; |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3622 | QualType FQT = Field->getType(); |
Fariborz Jahanian | 667423a | 2009-03-25 22:36:49 +0000 | [diff] [blame] | 3623 | if (FQT->isRecordType() || FQT->isUnionType()) { |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3624 | if (FQT->isUnionType()) |
| 3625 | HasUnion = true; |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3626 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3627 | BuildAggrIvarRecordLayout(FQT->getAs<RecordType>(), |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3628 | BytePos + FieldOffset, |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3629 | ForStrongLayout, HasUnion); |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3630 | continue; |
| 3631 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3632 | |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 3633 | if (const ArrayType *Array = CGM.getContext().getAsArrayType(FQT)) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3634 | const ConstantArrayType *CArray = |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3635 | dyn_cast_or_null<ConstantArrayType>(Array); |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3636 | uint64_t ElCount = CArray->getSize().getZExtValue(); |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3637 | assert(CArray && "only array with known element size is supported"); |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3638 | FQT = CArray->getElementType(); |
Fariborz Jahanian | 667423a | 2009-03-25 22:36:49 +0000 | [diff] [blame] | 3639 | while (const ArrayType *Array = CGM.getContext().getAsArrayType(FQT)) { |
| 3640 | const ConstantArrayType *CArray = |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3641 | dyn_cast_or_null<ConstantArrayType>(Array); |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3642 | ElCount *= CArray->getSize().getZExtValue(); |
Fariborz Jahanian | 667423a | 2009-03-25 22:36:49 +0000 | [diff] [blame] | 3643 | FQT = CArray->getElementType(); |
| 3644 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3645 | |
| 3646 | assert(!FQT->isUnionType() && |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3647 | "layout for array of unions not supported"); |
| 3648 | if (FQT->isRecordType()) { |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3649 | int OldIndex = IvarsInfo.size() - 1; |
| 3650 | int OldSkIndex = SkipIvars.size() -1; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3651 | |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 3652 | const RecordType *RT = FQT->getAs<RecordType>(); |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3653 | BuildAggrIvarRecordLayout(RT, BytePos + FieldOffset, |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3654 | ForStrongLayout, HasUnion); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3655 | |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3656 | // Replicate layout information for each array element. Note that |
| 3657 | // one element is already done. |
| 3658 | uint64_t ElIx = 1; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3659 | for (int FirstIndex = IvarsInfo.size() - 1, |
| 3660 | FirstSkIndex = SkipIvars.size() - 1 ;ElIx < ElCount; ElIx++) { |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3661 | uint64_t Size = CGM.getContext().getTypeSize(RT)/ByteSizeInBits; |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3662 | for (int i = OldIndex+1; i <= FirstIndex; ++i) |
| 3663 | IvarsInfo.push_back(GC_IVAR(IvarsInfo[i].ivar_bytepos + Size*ElIx, |
| 3664 | IvarsInfo[i].ivar_size)); |
| 3665 | for (int i = OldSkIndex+1; i <= FirstSkIndex; ++i) |
| 3666 | SkipIvars.push_back(GC_IVAR(SkipIvars[i].ivar_bytepos + Size*ElIx, |
| 3667 | SkipIvars[i].ivar_size)); |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3668 | } |
| 3669 | continue; |
| 3670 | } |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3671 | } |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3672 | // At this point, we are done with Record/Union and array there of. |
| 3673 | // For other arrays we are down to its element type. |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3674 | Qualifiers::GC GCAttr = GetGCAttrTypeForType(CGM.getContext(), FQT); |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3675 | |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3676 | unsigned FieldSize = CGM.getContext().getTypeSize(Field->getType()); |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3677 | if ((ForStrongLayout && GCAttr == Qualifiers::Strong) |
| 3678 | || (!ForStrongLayout && GCAttr == Qualifiers::Weak)) { |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3679 | if (IsUnion) { |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3680 | uint64_t UnionIvarSize = FieldSize / WordSizeInBits; |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3681 | if (UnionIvarSize > MaxUnionIvarSize) { |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3682 | MaxUnionIvarSize = UnionIvarSize; |
| 3683 | MaxField = Field; |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3684 | MaxFieldOffset = FieldOffset; |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3685 | } |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3686 | } else { |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3687 | IvarsInfo.push_back(GC_IVAR(BytePos + FieldOffset, |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3688 | FieldSize / WordSizeInBits)); |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3689 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3690 | } else if ((ForStrongLayout && |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3691 | (GCAttr == Qualifiers::GCNone || GCAttr == Qualifiers::Weak)) |
| 3692 | || (!ForStrongLayout && GCAttr != Qualifiers::Weak)) { |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3693 | if (IsUnion) { |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 3694 | // FIXME: Why the asymmetry? We divide by word size in bits on other |
| 3695 | // side. |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3696 | uint64_t UnionIvarSize = FieldSize; |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3697 | if (UnionIvarSize > MaxSkippedUnionIvarSize) { |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3698 | MaxSkippedUnionIvarSize = UnionIvarSize; |
| 3699 | MaxSkippedField = Field; |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3700 | MaxSkippedFieldOffset = FieldOffset; |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3701 | } |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3702 | } else { |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3703 | // FIXME: Why the asymmetry, we divide by byte size in bits here? |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3704 | SkipIvars.push_back(GC_IVAR(BytePos + FieldOffset, |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3705 | FieldSize / ByteSizeInBits)); |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3706 | } |
| 3707 | } |
| 3708 | } |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3709 | |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3710 | if (LastFieldBitfield) { |
| 3711 | // Last field was a bitfield. Must update skip info. |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3712 | Expr *BitWidth = LastFieldBitfield->getBitWidth(); |
| 3713 | uint64_t BitFieldSize = |
Eli Friedman | 9a901bb | 2009-04-26 19:19:15 +0000 | [diff] [blame] | 3714 | BitWidth->EvaluateAsInt(CGM.getContext()).getZExtValue(); |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3715 | GC_IVAR skivar; |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3716 | skivar.ivar_bytepos = BytePos + LastBitfieldOffset; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3717 | skivar.ivar_size = (BitFieldSize / ByteSizeInBits) |
| 3718 | + ((BitFieldSize % ByteSizeInBits) != 0); |
| 3719 | SkipIvars.push_back(skivar); |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3720 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3721 | |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3722 | if (MaxField) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3723 | IvarsInfo.push_back(GC_IVAR(BytePos + MaxFieldOffset, |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3724 | MaxUnionIvarSize)); |
| 3725 | if (MaxSkippedField) |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3726 | SkipIvars.push_back(GC_IVAR(BytePos + MaxSkippedFieldOffset, |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3727 | MaxSkippedUnionIvarSize)); |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 3728 | } |
| 3729 | |
Fariborz Jahanian | b8fd2eb | 2010-08-05 00:19:48 +0000 | [diff] [blame^] | 3730 | /// BuildIvarLayoutBitmap - This routine is the horsework for doing all |
| 3731 | /// the computations and returning the layout bitmap (for ivar or blocks) in |
| 3732 | /// the given argument BitMap string container. Routine reads |
| 3733 | /// two containers, IvarsInfo and SkipIvars which are assumed to be |
| 3734 | /// filled already by the caller. |
| 3735 | llvm::Constant *CGObjCCommonMac::BuildIvarLayoutBitmap(std::string& BitMap) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3736 | unsigned int WordsToScan, WordsToSkip; |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 3737 | const llvm::Type *PtrTy = llvm::Type::getInt8PtrTy(VMContext); |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3738 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3739 | // Build the string of skip/scan nibbles |
Fariborz Jahanian | 8c2f2d1 | 2009-04-24 17:15:27 +0000 | [diff] [blame] | 3740 | llvm::SmallVector<SKIP_SCAN, 32> SkipScanIvars; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3741 | unsigned int WordSize = |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3742 | CGM.getTypes().getTargetData().getTypeAllocSize(PtrTy); |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3743 | if (IvarsInfo[0].ivar_bytepos == 0) { |
| 3744 | WordsToSkip = 0; |
| 3745 | WordsToScan = IvarsInfo[0].ivar_size; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3746 | } else { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3747 | WordsToSkip = IvarsInfo[0].ivar_bytepos/WordSize; |
| 3748 | WordsToScan = IvarsInfo[0].ivar_size; |
| 3749 | } |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3750 | for (unsigned int i=1, Last=IvarsInfo.size(); i != Last; i++) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3751 | unsigned int TailPrevGCObjC = |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3752 | IvarsInfo[i-1].ivar_bytepos + IvarsInfo[i-1].ivar_size * WordSize; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3753 | if (IvarsInfo[i].ivar_bytepos == TailPrevGCObjC) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3754 | // consecutive 'scanned' object pointers. |
| 3755 | WordsToScan += IvarsInfo[i].ivar_size; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3756 | } else { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3757 | // Skip over 'gc'able object pointer which lay over each other. |
| 3758 | if (TailPrevGCObjC > IvarsInfo[i].ivar_bytepos) |
| 3759 | continue; |
| 3760 | // Must skip over 1 or more words. We save current skip/scan values |
| 3761 | // and start a new pair. |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3762 | SKIP_SCAN SkScan; |
| 3763 | SkScan.skip = WordsToSkip; |
| 3764 | SkScan.scan = WordsToScan; |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3765 | SkipScanIvars.push_back(SkScan); |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3766 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3767 | // Skip the hole. |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3768 | SkScan.skip = (IvarsInfo[i].ivar_bytepos - TailPrevGCObjC) / WordSize; |
| 3769 | SkScan.scan = 0; |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3770 | SkipScanIvars.push_back(SkScan); |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3771 | WordsToSkip = 0; |
| 3772 | WordsToScan = IvarsInfo[i].ivar_size; |
| 3773 | } |
| 3774 | } |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3775 | if (WordsToScan > 0) { |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3776 | SKIP_SCAN SkScan; |
| 3777 | SkScan.skip = WordsToSkip; |
| 3778 | SkScan.scan = WordsToScan; |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3779 | SkipScanIvars.push_back(SkScan); |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3780 | } |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3781 | |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3782 | if (!SkipIvars.empty()) { |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3783 | unsigned int LastIndex = SkipIvars.size()-1; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3784 | int LastByteSkipped = |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3785 | SkipIvars[LastIndex].ivar_bytepos + SkipIvars[LastIndex].ivar_size; |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3786 | LastIndex = IvarsInfo.size()-1; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3787 | int LastByteScanned = |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3788 | IvarsInfo[LastIndex].ivar_bytepos + |
| 3789 | IvarsInfo[LastIndex].ivar_size * WordSize; |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3790 | // Compute number of bytes to skip at the tail end of the last ivar scanned. |
Benjamin Kramer | 54d76db | 2009-12-25 15:43:36 +0000 | [diff] [blame] | 3791 | if (LastByteSkipped > LastByteScanned) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3792 | unsigned int TotalWords = (LastByteSkipped + (WordSize -1)) / WordSize; |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3793 | SKIP_SCAN SkScan; |
| 3794 | SkScan.skip = TotalWords - (LastByteScanned/WordSize); |
| 3795 | SkScan.scan = 0; |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3796 | SkipScanIvars.push_back(SkScan); |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3797 | } |
| 3798 | } |
| 3799 | // Mini optimization of nibbles such that an 0xM0 followed by 0x0N is produced |
| 3800 | // as 0xMN. |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3801 | int SkipScan = SkipScanIvars.size()-1; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3802 | for (int i = 0; i <= SkipScan; i++) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3803 | if ((i < SkipScan) && SkipScanIvars[i].skip && SkipScanIvars[i].scan == 0 |
| 3804 | && SkipScanIvars[i+1].skip == 0 && SkipScanIvars[i+1].scan) { |
| 3805 | // 0xM0 followed by 0x0N detected. |
| 3806 | SkipScanIvars[i].scan = SkipScanIvars[i+1].scan; |
| 3807 | for (int j = i+1; j < SkipScan; j++) |
| 3808 | SkipScanIvars[j] = SkipScanIvars[j+1]; |
| 3809 | --SkipScan; |
| 3810 | } |
| 3811 | } |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3812 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3813 | // Generate the string. |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3814 | for (int i = 0; i <= SkipScan; i++) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3815 | unsigned char byte; |
| 3816 | unsigned int skip_small = SkipScanIvars[i].skip % 0xf; |
| 3817 | unsigned int scan_small = SkipScanIvars[i].scan % 0xf; |
| 3818 | unsigned int skip_big = SkipScanIvars[i].skip / 0xf; |
| 3819 | unsigned int scan_big = SkipScanIvars[i].scan / 0xf; |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3820 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3821 | // first skip big. |
| 3822 | for (unsigned int ix = 0; ix < skip_big; ix++) |
| 3823 | BitMap += (unsigned char)(0xf0); |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3824 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3825 | // next (skip small, scan) |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3826 | if (skip_small) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3827 | byte = skip_small << 4; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3828 | if (scan_big > 0) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3829 | byte |= 0xf; |
| 3830 | --scan_big; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3831 | } else if (scan_small) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3832 | byte |= scan_small; |
| 3833 | scan_small = 0; |
| 3834 | } |
| 3835 | BitMap += byte; |
| 3836 | } |
| 3837 | // next scan big |
| 3838 | for (unsigned int ix = 0; ix < scan_big; ix++) |
| 3839 | BitMap += (unsigned char)(0x0f); |
| 3840 | // last scan small |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3841 | if (scan_small) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3842 | byte = scan_small; |
| 3843 | BitMap += byte; |
| 3844 | } |
| 3845 | } |
| 3846 | // null terminate string. |
Fariborz Jahanian | 667423a | 2009-03-25 22:36:49 +0000 | [diff] [blame] | 3847 | unsigned char zero = 0; |
| 3848 | BitMap += zero; |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3849 | |
| 3850 | llvm::GlobalVariable * Entry = |
| 3851 | CreateMetadataVar("\01L_OBJC_CLASS_NAME_", |
| 3852 | llvm::ConstantArray::get(VMContext, BitMap.c_str()), |
| 3853 | "__TEXT,__cstring,cstring_literals", |
| 3854 | 1, true); |
| 3855 | return getConstantGEP(VMContext, Entry, 0, 0); |
| 3856 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3857 | |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3858 | /// BuildIvarLayout - Builds ivar layout bitmap for the class |
| 3859 | /// implementation for the __strong or __weak case. |
| 3860 | /// The layout map displays which words in ivar list must be skipped |
| 3861 | /// and which must be scanned by GC (see below). String is built of bytes. |
| 3862 | /// Each byte is divided up in two nibbles (4-bit each). Left nibble is count |
| 3863 | /// of words to skip and right nibble is count of words to scan. So, each |
| 3864 | /// nibble represents up to 15 workds to skip or scan. Skipping the rest is |
| 3865 | /// represented by a 0x00 byte which also ends the string. |
| 3866 | /// 1. when ForStrongLayout is true, following ivars are scanned: |
| 3867 | /// - id, Class |
| 3868 | /// - object * |
| 3869 | /// - __strong anything |
| 3870 | /// |
| 3871 | /// 2. When ForStrongLayout is false, following ivars are scanned: |
| 3872 | /// - __weak anything |
| 3873 | /// |
| 3874 | llvm::Constant *CGObjCCommonMac::BuildIvarLayout( |
| 3875 | const ObjCImplementationDecl *OMD, |
| 3876 | bool ForStrongLayout) { |
| 3877 | bool hasUnion = false; |
| 3878 | |
| 3879 | const llvm::Type *PtrTy = llvm::Type::getInt8PtrTy(VMContext); |
| 3880 | if (CGM.getLangOptions().getGCMode() == LangOptions::NonGC) |
| 3881 | return llvm::Constant::getNullValue(PtrTy); |
| 3882 | |
| 3883 | llvm::SmallVector<FieldDecl*, 32> RecFields; |
| 3884 | const ObjCInterfaceDecl *OI = OMD->getClassInterface(); |
| 3885 | CGM.getContext().CollectObjCIvars(OI, RecFields); |
| 3886 | |
| 3887 | // Add this implementations synthesized ivars. |
| 3888 | llvm::SmallVector<ObjCIvarDecl*, 16> Ivars; |
| 3889 | CGM.getContext().CollectNonClassIvars(OI, Ivars); |
| 3890 | for (unsigned k = 0, e = Ivars.size(); k != e; ++k) |
| 3891 | RecFields.push_back(cast<FieldDecl>(Ivars[k])); |
| 3892 | |
| 3893 | if (RecFields.empty()) |
| 3894 | return llvm::Constant::getNullValue(PtrTy); |
| 3895 | |
| 3896 | SkipIvars.clear(); |
| 3897 | IvarsInfo.clear(); |
| 3898 | |
| 3899 | BuildAggrIvarLayout(OMD, 0, 0, RecFields, 0, ForStrongLayout, hasUnion); |
| 3900 | if (IvarsInfo.empty()) |
| 3901 | return llvm::Constant::getNullValue(PtrTy); |
Fariborz Jahanian | b8fd2eb | 2010-08-05 00:19:48 +0000 | [diff] [blame^] | 3902 | // Sort on byte position in case we encounterred a union nested in |
| 3903 | // the ivar list. |
| 3904 | if (hasUnion && !IvarsInfo.empty()) |
| 3905 | std::sort(IvarsInfo.begin(), IvarsInfo.end()); |
| 3906 | if (hasUnion && !SkipIvars.empty()) |
| 3907 | std::sort(SkipIvars.begin(), SkipIvars.end()); |
| 3908 | |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3909 | std::string BitMap; |
Fariborz Jahanian | b8fd2eb | 2010-08-05 00:19:48 +0000 | [diff] [blame^] | 3910 | llvm::Constant *C = BuildIvarLayoutBitmap(BitMap); |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3911 | |
| 3912 | if (CGM.getLangOptions().ObjCGCBitmapPrint) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3913 | printf("\n%s ivar layout for class '%s': ", |
Fariborz Jahanian | 3d2ad66 | 2009-04-20 22:03:45 +0000 | [diff] [blame] | 3914 | ForStrongLayout ? "strong" : "weak", |
| 3915 | OMD->getClassInterface()->getNameAsCString()); |
| 3916 | const unsigned char *s = (unsigned char*)BitMap.c_str(); |
| 3917 | for (unsigned i = 0; i < BitMap.size(); i++) |
| 3918 | if (!(s[i] & 0xf0)) |
| 3919 | printf("0x0%x%s", s[i], s[i] != 0 ? ", " : ""); |
| 3920 | else |
| 3921 | printf("0x%x%s", s[i], s[i] != 0 ? ", " : ""); |
| 3922 | printf("\n"); |
| 3923 | } |
Fariborz Jahanian | 93ce50d | 2010-08-04 23:55:24 +0000 | [diff] [blame] | 3924 | return C; |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 3925 | } |
| 3926 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3927 | llvm::Constant *CGObjCCommonMac::GetMethodVarName(Selector Sel) { |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3928 | llvm::GlobalVariable *&Entry = MethodVarNames[Sel]; |
| 3929 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3930 | // FIXME: Avoid std::string copying. |
| 3931 | if (!Entry) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3932 | Entry = CreateMetadataVar("\01L_OBJC_METH_VAR_NAME_", |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 3933 | llvm::ConstantArray::get(VMContext, Sel.getAsString()), |
Daniel Dunbar | 6633e3c | 2010-07-29 22:57:21 +0000 | [diff] [blame] | 3934 | "__TEXT,__cstring,cstring_literals", |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3935 | 1, true); |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3936 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3937 | return getConstantGEP(VMContext, Entry, 0, 0); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3938 | } |
| 3939 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3940 | // FIXME: Merge into a single cstring creation function. |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3941 | llvm::Constant *CGObjCCommonMac::GetMethodVarName(IdentifierInfo *ID) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3942 | return GetMethodVarName(CGM.getContext().Selectors.getNullarySelector(ID)); |
| 3943 | } |
| 3944 | |
| 3945 | // FIXME: Merge into a single cstring creation function. |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3946 | llvm::Constant *CGObjCCommonMac::GetMethodVarName(const std::string &Name) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3947 | return GetMethodVarName(&CGM.getContext().Idents.get(Name)); |
| 3948 | } |
| 3949 | |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 3950 | llvm::Constant *CGObjCCommonMac::GetMethodVarType(const FieldDecl *Field) { |
Devang Patel | 7794bb8 | 2009-03-04 18:21:39 +0000 | [diff] [blame] | 3951 | std::string TypeStr; |
| 3952 | CGM.getContext().getObjCEncodingForType(Field->getType(), TypeStr, Field); |
| 3953 | |
| 3954 | llvm::GlobalVariable *&Entry = MethodVarTypes[TypeStr]; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3955 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3956 | if (!Entry) |
| 3957 | Entry = CreateMetadataVar("\01L_OBJC_METH_VAR_TYPE_", |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 3958 | llvm::ConstantArray::get(VMContext, TypeStr), |
Daniel Dunbar | 6633e3c | 2010-07-29 22:57:21 +0000 | [diff] [blame] | 3959 | "__TEXT,__cstring,cstring_literals", |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3960 | 1, true); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3961 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3962 | return getConstantGEP(VMContext, Entry, 0, 0); |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3963 | } |
| 3964 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3965 | llvm::Constant *CGObjCCommonMac::GetMethodVarType(const ObjCMethodDecl *D) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3966 | std::string TypeStr; |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 3967 | CGM.getContext().getObjCEncodingForMethodDecl(const_cast<ObjCMethodDecl*>(D), |
| 3968 | TypeStr); |
Devang Patel | 7794bb8 | 2009-03-04 18:21:39 +0000 | [diff] [blame] | 3969 | |
| 3970 | llvm::GlobalVariable *&Entry = MethodVarTypes[TypeStr]; |
| 3971 | |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3972 | if (!Entry) |
| 3973 | Entry = CreateMetadataVar("\01L_OBJC_METH_VAR_TYPE_", |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 3974 | llvm::ConstantArray::get(VMContext, TypeStr), |
Daniel Dunbar | 6633e3c | 2010-07-29 22:57:21 +0000 | [diff] [blame] | 3975 | "__TEXT,__cstring,cstring_literals", |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3976 | 1, true); |
Devang Patel | 7794bb8 | 2009-03-04 18:21:39 +0000 | [diff] [blame] | 3977 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3978 | return getConstantGEP(VMContext, Entry, 0, 0); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3979 | } |
| 3980 | |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 3981 | // FIXME: Merge into a single cstring creation function. |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3982 | llvm::Constant *CGObjCCommonMac::GetPropertyName(IdentifierInfo *Ident) { |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 3983 | llvm::GlobalVariable *&Entry = PropertyNames[Ident]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3984 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3985 | if (!Entry) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3986 | Entry = CreateMetadataVar("\01L_OBJC_PROP_NAME_ATTR_", |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 3987 | llvm::ConstantArray::get(VMContext, |
| 3988 | Ident->getNameStart()), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3989 | "__TEXT,__cstring,cstring_literals", |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3990 | 1, true); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 3991 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3992 | return getConstantGEP(VMContext, Entry, 0, 0); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 3993 | } |
| 3994 | |
| 3995 | // FIXME: Merge into a single cstring creation function. |
Daniel Dunbar | c56f34a | 2008-08-28 04:38:10 +0000 | [diff] [blame] | 3996 | // FIXME: This Decl should be more precise. |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3997 | llvm::Constant * |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3998 | CGObjCCommonMac::GetPropertyTypeString(const ObjCPropertyDecl *PD, |
| 3999 | const Decl *Container) { |
Daniel Dunbar | c56f34a | 2008-08-28 04:38:10 +0000 | [diff] [blame] | 4000 | std::string TypeStr; |
| 4001 | CGM.getContext().getObjCEncodingForPropertyDecl(PD, Container, TypeStr); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 4002 | return GetPropertyName(&CGM.getContext().Idents.get(TypeStr)); |
| 4003 | } |
| 4004 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4005 | void CGObjCCommonMac::GetNameForMethod(const ObjCMethodDecl *D, |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 4006 | const ObjCContainerDecl *CD, |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 4007 | llvm::SmallVectorImpl<char> &Name) { |
| 4008 | llvm::raw_svector_ostream OS(Name); |
Fariborz Jahanian | 679a502 | 2009-01-10 21:06:09 +0000 | [diff] [blame] | 4009 | assert (CD && "Missing container decl in GetNameForMethod"); |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 4010 | OS << '\01' << (D->isInstanceMethod() ? '-' : '+') |
| 4011 | << '[' << CD->getName(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4012 | if (const ObjCCategoryImplDecl *CID = |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 4013 | dyn_cast<ObjCCategoryImplDecl>(D->getDeclContext())) |
Benjamin Kramer | 900fc63 | 2010-04-17 09:33:03 +0000 | [diff] [blame] | 4014 | OS << '(' << CID << ')'; |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 4015 | OS << ' ' << D->getSelector().getAsString() << ']'; |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 4016 | } |
| 4017 | |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 4018 | void CGObjCMac::FinishModule() { |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 4019 | EmitModuleInfo(); |
| 4020 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 4021 | // Emit the dummy bodies for any protocols which were referenced but |
| 4022 | // never defined. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4023 | for (llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*>::iterator |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4024 | I = Protocols.begin(), e = Protocols.end(); I != e; ++I) { |
| 4025 | if (I->second->hasInitializer()) |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 4026 | continue; |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 4027 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 4028 | std::vector<llvm::Constant*> Values(5); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4029 | Values[0] = llvm::Constant::getNullValue(ObjCTypes.ProtocolExtensionPtrTy); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4030 | Values[1] = GetClassName(I->first); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4031 | Values[2] = llvm::Constant::getNullValue(ObjCTypes.ProtocolListPtrTy); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 4032 | Values[3] = Values[4] = |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4033 | llvm::Constant::getNullValue(ObjCTypes.MethodDescriptionListPtrTy); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4034 | I->second->setLinkage(llvm::GlobalValue::InternalLinkage); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 4035 | I->second->setInitializer(llvm::ConstantStruct::get(ObjCTypes.ProtocolTy, |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 4036 | Values)); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4037 | CGM.AddUsedGlobal(I->second); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 4038 | } |
| 4039 | |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 4040 | // Add assembler directives to add lazy undefined symbol references |
| 4041 | // for classes which are referenced but not defined. This is |
| 4042 | // important for correct linker interaction. |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 4043 | // |
| 4044 | // FIXME: It would be nice if we had an LLVM construct for this. |
| 4045 | if (!LazySymbols.empty() || !DefinedSymbols.empty()) { |
| 4046 | llvm::SmallString<256> Asm; |
| 4047 | Asm += CGM.getModule().getModuleInlineAsm(); |
| 4048 | if (!Asm.empty() && Asm.back() != '\n') |
| 4049 | Asm += '\n'; |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 4050 | |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 4051 | llvm::raw_svector_ostream OS(Asm); |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 4052 | for (llvm::SetVector<IdentifierInfo*>::iterator I = DefinedSymbols.begin(), |
| 4053 | e = DefinedSymbols.end(); I != e; ++I) |
Daniel Dunbar | 01eb9b9 | 2009-10-18 21:17:35 +0000 | [diff] [blame] | 4054 | OS << "\t.objc_class_name_" << (*I)->getName() << "=0\n" |
| 4055 | << "\t.globl .objc_class_name_" << (*I)->getName() << "\n"; |
Chris Lattner | afd5eda | 2010-04-17 18:26:20 +0000 | [diff] [blame] | 4056 | for (llvm::SetVector<IdentifierInfo*>::iterator I = LazySymbols.begin(), |
Fariborz Jahanian | b9c5b3d | 2010-06-21 22:05:18 +0000 | [diff] [blame] | 4057 | e = LazySymbols.end(); I != e; ++I) { |
Chris Lattner | afd5eda | 2010-04-17 18:26:20 +0000 | [diff] [blame] | 4058 | OS << "\t.lazy_reference .objc_class_name_" << (*I)->getName() << "\n"; |
Fariborz Jahanian | b9c5b3d | 2010-06-21 22:05:18 +0000 | [diff] [blame] | 4059 | } |
| 4060 | |
| 4061 | for (size_t i = 0; i < DefinedCategoryNames.size(); ++i) { |
| 4062 | OS << "\t.objc_category_name_" << DefinedCategoryNames[i] << "=0\n" |
| 4063 | << "\t.globl .objc_category_name_" << DefinedCategoryNames[i] << "\n"; |
| 4064 | } |
Chris Lattner | afd5eda | 2010-04-17 18:26:20 +0000 | [diff] [blame] | 4065 | |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 4066 | CGM.getModule().setModuleInlineAsm(OS.str()); |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 4067 | } |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 4068 | } |
| 4069 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4070 | CGObjCNonFragileABIMac::CGObjCNonFragileABIMac(CodeGen::CodeGenModule &cgm) |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4071 | : CGObjCCommonMac(cgm), |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4072 | ObjCTypes(cgm) { |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4073 | ObjCEmptyCacheVar = ObjCEmptyVtableVar = NULL; |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4074 | ObjCABI = 2; |
| 4075 | } |
| 4076 | |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 4077 | /* *** */ |
| 4078 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4079 | ObjCCommonTypesHelper::ObjCCommonTypesHelper(CodeGen::CodeGenModule &cgm) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4080 | : VMContext(cgm.getLLVMContext()), CGM(cgm) { |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 4081 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 4082 | ASTContext &Ctx = CGM.getContext(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4083 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4084 | ShortTy = Types.ConvertType(Ctx.ShortTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4085 | IntTy = Types.ConvertType(Ctx.IntTy); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 4086 | LongTy = Types.ConvertType(Ctx.LongTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 4087 | LongLongTy = Types.ConvertType(Ctx.LongLongTy); |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 4088 | Int8PtrTy = llvm::Type::getInt8PtrTy(VMContext); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4089 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 4090 | ObjectPtrTy = Types.ConvertType(Ctx.getObjCIdType()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4091 | PtrObjectPtrTy = llvm::PointerType::getUnqual(ObjectPtrTy); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 4092 | SelectorPtrTy = Types.ConvertType(Ctx.getObjCSelType()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4093 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 4094 | // FIXME: It would be nice to unify this with the opaque type, so that the IR |
| 4095 | // comes out a bit cleaner. |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4096 | const llvm::Type *T = Types.ConvertType(Ctx.getObjCProtoType()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4097 | ExternalProtocolPtrTy = llvm::PointerType::getUnqual(T); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4098 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4099 | // I'm not sure I like this. The implicit coordination is a bit |
| 4100 | // gross. We should solve this in a reasonable fashion because this |
| 4101 | // is a pretty common task (match some runtime data structure with |
| 4102 | // an LLVM data structure). |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4103 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4104 | // FIXME: This is leaked. |
| 4105 | // FIXME: Merge with rewriter code? |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4106 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4107 | // struct _objc_super { |
| 4108 | // id self; |
| 4109 | // Class cls; |
| 4110 | // } |
Abramo Bagnara | 465d41b | 2010-05-11 21:36:43 +0000 | [diff] [blame] | 4111 | RecordDecl *RD = RecordDecl::Create(Ctx, TTK_Struct, |
Daniel Dunbar | daa3ac5 | 2010-04-29 16:29:11 +0000 | [diff] [blame] | 4112 | Ctx.getTranslationUnitDecl(), |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4113 | SourceLocation(), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4114 | &Ctx.Idents.get("_objc_super")); |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4115 | RD->addDecl(FieldDecl::Create(Ctx, RD, SourceLocation(), 0, |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 4116 | Ctx.getObjCIdType(), 0, 0, false)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4117 | RD->addDecl(FieldDecl::Create(Ctx, RD, SourceLocation(), 0, |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 4118 | Ctx.getObjCClassType(), 0, 0, false)); |
Douglas Gregor | 838db38 | 2010-02-11 01:19:42 +0000 | [diff] [blame] | 4119 | RD->completeDefinition(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4120 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4121 | SuperCTy = Ctx.getTagDeclType(RD); |
| 4122 | SuperPtrCTy = Ctx.getPointerType(SuperCTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4123 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4124 | SuperTy = cast<llvm::StructType>(Types.ConvertType(SuperCTy)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4125 | SuperPtrTy = llvm::PointerType::getUnqual(SuperTy); |
| 4126 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4127 | // struct _prop_t { |
| 4128 | // char *name; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4129 | // char *attributes; |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4130 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4131 | PropertyTy = llvm::StructType::get(VMContext, Int8PtrTy, Int8PtrTy, NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4132 | CGM.getModule().addTypeName("struct._prop_t", |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4133 | PropertyTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4134 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4135 | // struct _prop_list_t { |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4136 | // uint32_t entsize; // sizeof(struct _prop_t) |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4137 | // uint32_t count_of_properties; |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4138 | // struct _prop_t prop_list[count_of_properties]; |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4139 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4140 | PropertyListTy = llvm::StructType::get(VMContext, IntTy, |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4141 | IntTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4142 | llvm::ArrayType::get(PropertyTy, 0), |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4143 | NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4144 | CGM.getModule().addTypeName("struct._prop_list_t", |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4145 | PropertyListTy); |
| 4146 | // struct _prop_list_t * |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4147 | PropertyListPtrTy = llvm::PointerType::getUnqual(PropertyListTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4148 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4149 | // struct _objc_method { |
| 4150 | // SEL _cmd; |
| 4151 | // char *method_type; |
| 4152 | // char *_imp; |
| 4153 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4154 | MethodTy = llvm::StructType::get(VMContext, SelectorPtrTy, |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4155 | Int8PtrTy, |
| 4156 | Int8PtrTy, |
| 4157 | NULL); |
| 4158 | CGM.getModule().addTypeName("struct._objc_method", MethodTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4159 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4160 | // struct _objc_cache * |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 4161 | CacheTy = llvm::OpaqueType::get(VMContext); |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4162 | CGM.getModule().addTypeName("struct._objc_cache", CacheTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4163 | CachePtrTy = llvm::PointerType::getUnqual(CacheTy); |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4164 | } |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 4165 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4166 | ObjCTypesHelper::ObjCTypesHelper(CodeGen::CodeGenModule &cgm) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4167 | : ObjCCommonTypesHelper(cgm) { |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4168 | // struct _objc_method_description { |
| 4169 | // SEL name; |
| 4170 | // char *types; |
| 4171 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4172 | MethodDescriptionTy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4173 | llvm::StructType::get(VMContext, SelectorPtrTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4174 | Int8PtrTy, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4175 | NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4176 | CGM.getModule().addTypeName("struct._objc_method_description", |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4177 | MethodDescriptionTy); |
| 4178 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4179 | // struct _objc_method_description_list { |
| 4180 | // int count; |
| 4181 | // struct _objc_method_description[1]; |
| 4182 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4183 | MethodDescriptionListTy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4184 | llvm::StructType::get(VMContext, IntTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4185 | llvm::ArrayType::get(MethodDescriptionTy, 0), |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4186 | NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4187 | CGM.getModule().addTypeName("struct._objc_method_description_list", |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4188 | MethodDescriptionListTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4189 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4190 | // struct _objc_method_description_list * |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4191 | MethodDescriptionListPtrTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4192 | llvm::PointerType::getUnqual(MethodDescriptionListTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4193 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4194 | // Protocol description structures |
| 4195 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4196 | // struct _objc_protocol_extension { |
| 4197 | // uint32_t size; // sizeof(struct _objc_protocol_extension) |
| 4198 | // struct _objc_method_description_list *optional_instance_methods; |
| 4199 | // struct _objc_method_description_list *optional_class_methods; |
| 4200 | // struct _objc_property_list *instance_properties; |
| 4201 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4202 | ProtocolExtensionTy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4203 | llvm::StructType::get(VMContext, IntTy, |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4204 | MethodDescriptionListPtrTy, |
| 4205 | MethodDescriptionListPtrTy, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4206 | PropertyListPtrTy, |
| 4207 | NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4208 | CGM.getModule().addTypeName("struct._objc_protocol_extension", |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4209 | ProtocolExtensionTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4210 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4211 | // struct _objc_protocol_extension * |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4212 | ProtocolExtensionPtrTy = llvm::PointerType::getUnqual(ProtocolExtensionTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4213 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 4214 | // Handle recursive construction of Protocol and ProtocolList types |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4215 | |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 4216 | llvm::PATypeHolder ProtocolTyHolder = llvm::OpaqueType::get(VMContext); |
| 4217 | llvm::PATypeHolder ProtocolListTyHolder = llvm::OpaqueType::get(VMContext); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4218 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4219 | const llvm::Type *T = |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4220 | llvm::StructType::get(VMContext, |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4221 | llvm::PointerType::getUnqual(ProtocolListTyHolder), |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4222 | LongTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4223 | llvm::ArrayType::get(ProtocolTyHolder, 0), |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 4224 | NULL); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4225 | cast<llvm::OpaqueType>(ProtocolListTyHolder.get())->refineAbstractTypeTo(T); |
| 4226 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4227 | // struct _objc_protocol { |
| 4228 | // struct _objc_protocol_extension *isa; |
| 4229 | // char *protocol_name; |
| 4230 | // struct _objc_protocol **_objc_protocol_list; |
| 4231 | // struct _objc_method_description_list *instance_methods; |
| 4232 | // struct _objc_method_description_list *class_methods; |
| 4233 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4234 | T = llvm::StructType::get(VMContext, ProtocolExtensionPtrTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4235 | Int8PtrTy, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4236 | llvm::PointerType::getUnqual(ProtocolListTyHolder), |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4237 | MethodDescriptionListPtrTy, |
| 4238 | MethodDescriptionListPtrTy, |
| 4239 | NULL); |
| 4240 | cast<llvm::OpaqueType>(ProtocolTyHolder.get())->refineAbstractTypeTo(T); |
| 4241 | |
| 4242 | ProtocolListTy = cast<llvm::StructType>(ProtocolListTyHolder.get()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4243 | CGM.getModule().addTypeName("struct._objc_protocol_list", |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4244 | ProtocolListTy); |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4245 | // struct _objc_protocol_list * |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4246 | ProtocolListPtrTy = llvm::PointerType::getUnqual(ProtocolListTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 4247 | |
| 4248 | ProtocolTy = cast<llvm::StructType>(ProtocolTyHolder.get()); |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4249 | CGM.getModule().addTypeName("struct._objc_protocol", ProtocolTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4250 | ProtocolPtrTy = llvm::PointerType::getUnqual(ProtocolTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4251 | |
| 4252 | // Class description structures |
| 4253 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4254 | // struct _objc_ivar { |
| 4255 | // char *ivar_name; |
| 4256 | // char *ivar_type; |
| 4257 | // int ivar_offset; |
| 4258 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4259 | IvarTy = llvm::StructType::get(VMContext, Int8PtrTy, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4260 | Int8PtrTy, |
| 4261 | IntTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4262 | NULL); |
| 4263 | CGM.getModule().addTypeName("struct._objc_ivar", IvarTy); |
| 4264 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4265 | // struct _objc_ivar_list * |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 4266 | IvarListTy = llvm::OpaqueType::get(VMContext); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4267 | CGM.getModule().addTypeName("struct._objc_ivar_list", IvarListTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4268 | IvarListPtrTy = llvm::PointerType::getUnqual(IvarListTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4269 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4270 | // struct _objc_method_list * |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 4271 | MethodListTy = llvm::OpaqueType::get(VMContext); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4272 | CGM.getModule().addTypeName("struct._objc_method_list", MethodListTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4273 | MethodListPtrTy = llvm::PointerType::getUnqual(MethodListTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4274 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4275 | // struct _objc_class_extension * |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4276 | ClassExtensionTy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4277 | llvm::StructType::get(VMContext, IntTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4278 | Int8PtrTy, |
| 4279 | PropertyListPtrTy, |
| 4280 | NULL); |
| 4281 | CGM.getModule().addTypeName("struct._objc_class_extension", ClassExtensionTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4282 | ClassExtensionPtrTy = llvm::PointerType::getUnqual(ClassExtensionTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4283 | |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 4284 | llvm::PATypeHolder ClassTyHolder = llvm::OpaqueType::get(VMContext); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4285 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4286 | // struct _objc_class { |
| 4287 | // Class isa; |
| 4288 | // Class super_class; |
| 4289 | // char *name; |
| 4290 | // long version; |
| 4291 | // long info; |
| 4292 | // long instance_size; |
| 4293 | // struct _objc_ivar_list *ivars; |
| 4294 | // struct _objc_method_list *methods; |
| 4295 | // struct _objc_cache *cache; |
| 4296 | // struct _objc_protocol_list *protocols; |
| 4297 | // char *ivar_layout; |
| 4298 | // struct _objc_class_ext *ext; |
| 4299 | // }; |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4300 | T = llvm::StructType::get(VMContext, |
| 4301 | llvm::PointerType::getUnqual(ClassTyHolder), |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4302 | llvm::PointerType::getUnqual(ClassTyHolder), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4303 | Int8PtrTy, |
| 4304 | LongTy, |
| 4305 | LongTy, |
| 4306 | LongTy, |
| 4307 | IvarListPtrTy, |
| 4308 | MethodListPtrTy, |
| 4309 | CachePtrTy, |
| 4310 | ProtocolListPtrTy, |
| 4311 | Int8PtrTy, |
| 4312 | ClassExtensionPtrTy, |
| 4313 | NULL); |
| 4314 | cast<llvm::OpaqueType>(ClassTyHolder.get())->refineAbstractTypeTo(T); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4315 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4316 | ClassTy = cast<llvm::StructType>(ClassTyHolder.get()); |
| 4317 | CGM.getModule().addTypeName("struct._objc_class", ClassTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4318 | ClassPtrTy = llvm::PointerType::getUnqual(ClassTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4319 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4320 | // struct _objc_category { |
| 4321 | // char *category_name; |
| 4322 | // char *class_name; |
| 4323 | // struct _objc_method_list *instance_method; |
| 4324 | // struct _objc_method_list *class_method; |
| 4325 | // uint32_t size; // sizeof(struct _objc_category) |
| 4326 | // struct _objc_property_list *instance_properties;// category's @property |
| 4327 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4328 | CategoryTy = llvm::StructType::get(VMContext, Int8PtrTy, |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 4329 | Int8PtrTy, |
| 4330 | MethodListPtrTy, |
| 4331 | MethodListPtrTy, |
| 4332 | ProtocolListPtrTy, |
| 4333 | IntTy, |
| 4334 | PropertyListPtrTy, |
| 4335 | NULL); |
| 4336 | CGM.getModule().addTypeName("struct._objc_category", CategoryTy); |
| 4337 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4338 | // Global metadata structures |
| 4339 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 4340 | // struct _objc_symtab { |
| 4341 | // long sel_ref_cnt; |
| 4342 | // SEL *refs; |
| 4343 | // short cls_def_cnt; |
| 4344 | // short cat_def_cnt; |
| 4345 | // char *defs[cls_def_cnt + cat_def_cnt]; |
| 4346 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4347 | SymtabTy = llvm::StructType::get(VMContext, LongTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4348 | SelectorPtrTy, |
| 4349 | ShortTy, |
| 4350 | ShortTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4351 | llvm::ArrayType::get(Int8PtrTy, 0), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4352 | NULL); |
| 4353 | CGM.getModule().addTypeName("struct._objc_symtab", SymtabTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4354 | SymtabPtrTy = llvm::PointerType::getUnqual(SymtabTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4355 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 4356 | // struct _objc_module { |
| 4357 | // long version; |
| 4358 | // long size; // sizeof(struct _objc_module) |
| 4359 | // char *name; |
| 4360 | // struct _objc_symtab* symtab; |
| 4361 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4362 | ModuleTy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4363 | llvm::StructType::get(VMContext, LongTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 4364 | LongTy, |
| 4365 | Int8PtrTy, |
| 4366 | SymtabPtrTy, |
| 4367 | NULL); |
| 4368 | CGM.getModule().addTypeName("struct._objc_module", ModuleTy); |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 4369 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4370 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 4371 | // FIXME: This is the size of the setjmp buffer and should be target |
| 4372 | // specific. 18 is what's used on 32-bit X86. |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 4373 | uint64_t SetJmpBufferSize = 18; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4374 | |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 4375 | // Exceptions |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4376 | const llvm::Type *StackPtrTy = llvm::ArrayType::get( |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 4377 | llvm::Type::getInt8PtrTy(VMContext), 4); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4378 | |
| 4379 | ExceptionDataTy = |
Chris Lattner | 77b89b8 | 2010-06-27 07:15:29 +0000 | [diff] [blame] | 4380 | llvm::StructType::get(VMContext, |
| 4381 | llvm::ArrayType::get(llvm::Type::getInt32Ty(VMContext), |
| 4382 | SetJmpBufferSize), |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 4383 | StackPtrTy, NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4384 | CGM.getModule().addTypeName("struct._objc_exception_data", |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 4385 | ExceptionDataTy); |
| 4386 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 4387 | } |
| 4388 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4389 | ObjCNonFragileABITypesHelper::ObjCNonFragileABITypesHelper(CodeGen::CodeGenModule &cgm) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4390 | : ObjCCommonTypesHelper(cgm) { |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4391 | // struct _method_list_t { |
| 4392 | // uint32_t entsize; // sizeof(struct _objc_method) |
| 4393 | // uint32_t method_count; |
| 4394 | // struct _objc_method method_list[method_count]; |
| 4395 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4396 | MethodListnfABITy = llvm::StructType::get(VMContext, IntTy, |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4397 | IntTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4398 | llvm::ArrayType::get(MethodTy, 0), |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4399 | NULL); |
| 4400 | CGM.getModule().addTypeName("struct.__method_list_t", |
| 4401 | MethodListnfABITy); |
| 4402 | // struct method_list_t * |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4403 | MethodListnfABIPtrTy = llvm::PointerType::getUnqual(MethodListnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4404 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4405 | // struct _protocol_t { |
| 4406 | // id isa; // NULL |
| 4407 | // const char * const protocol_name; |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4408 | // const struct _protocol_list_t * protocol_list; // super protocols |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4409 | // const struct method_list_t * const instance_methods; |
| 4410 | // const struct method_list_t * const class_methods; |
| 4411 | // const struct method_list_t *optionalInstanceMethods; |
| 4412 | // const struct method_list_t *optionalClassMethods; |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4413 | // const struct _prop_list_t * properties; |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4414 | // const uint32_t size; // sizeof(struct _protocol_t) |
| 4415 | // const uint32_t flags; // = 0 |
| 4416 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4417 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4418 | // Holder for struct _protocol_list_t * |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 4419 | llvm::PATypeHolder ProtocolListTyHolder = llvm::OpaqueType::get(VMContext); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4420 | |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4421 | ProtocolnfABITy = llvm::StructType::get(VMContext, ObjectPtrTy, |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4422 | Int8PtrTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4423 | llvm::PointerType::getUnqual( |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4424 | ProtocolListTyHolder), |
| 4425 | MethodListnfABIPtrTy, |
| 4426 | MethodListnfABIPtrTy, |
| 4427 | MethodListnfABIPtrTy, |
| 4428 | MethodListnfABIPtrTy, |
| 4429 | PropertyListPtrTy, |
| 4430 | IntTy, |
| 4431 | IntTy, |
| 4432 | NULL); |
| 4433 | CGM.getModule().addTypeName("struct._protocol_t", |
| 4434 | ProtocolnfABITy); |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 4435 | |
| 4436 | // struct _protocol_t* |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4437 | ProtocolnfABIPtrTy = llvm::PointerType::getUnqual(ProtocolnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4438 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4439 | // struct _protocol_list_t { |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4440 | // long protocol_count; // Note, this is 32/64 bit |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 4441 | // struct _protocol_t *[protocol_count]; |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4442 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4443 | ProtocolListnfABITy = llvm::StructType::get(VMContext, LongTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4444 | llvm::ArrayType::get( |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 4445 | ProtocolnfABIPtrTy, 0), |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4446 | NULL); |
| 4447 | CGM.getModule().addTypeName("struct._objc_protocol_list", |
| 4448 | ProtocolListnfABITy); |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 4449 | cast<llvm::OpaqueType>(ProtocolListTyHolder.get())->refineAbstractTypeTo( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4450 | ProtocolListnfABITy); |
| 4451 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4452 | // struct _objc_protocol_list* |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4453 | ProtocolListnfABIPtrTy = llvm::PointerType::getUnqual(ProtocolListnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4454 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4455 | // struct _ivar_t { |
| 4456 | // unsigned long int *offset; // pointer to ivar offset location |
| 4457 | // char *name; |
| 4458 | // char *type; |
| 4459 | // uint32_t alignment; |
| 4460 | // uint32_t size; |
| 4461 | // } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 4462 | IvarnfABITy = llvm::StructType::get(VMContext, |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4463 | llvm::PointerType::getUnqual(LongTy), |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4464 | Int8PtrTy, |
| 4465 | Int8PtrTy, |
| 4466 | IntTy, |
| 4467 | IntTy, |
| 4468 | NULL); |
| 4469 | CGM.getModule().addTypeName("struct._ivar_t", IvarnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4470 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4471 | // struct _ivar_list_t { |
| 4472 | // uint32 entsize; // sizeof(struct _ivar_t) |
| 4473 | // uint32 count; |
| 4474 | // struct _iver_t list[count]; |
| 4475 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4476 | IvarListnfABITy = llvm::StructType::get(VMContext, IntTy, |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4477 | IntTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4478 | llvm::ArrayType::get( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4479 | IvarnfABITy, 0), |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4480 | NULL); |
| 4481 | CGM.getModule().addTypeName("struct._ivar_list_t", IvarListnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4482 | |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4483 | IvarListnfABIPtrTy = llvm::PointerType::getUnqual(IvarListnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4484 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4485 | // struct _class_ro_t { |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 4486 | // uint32_t const flags; |
| 4487 | // uint32_t const instanceStart; |
| 4488 | // uint32_t const instanceSize; |
| 4489 | // uint32_t const reserved; // only when building for 64bit targets |
| 4490 | // const uint8_t * const ivarLayout; |
| 4491 | // const char *const name; |
| 4492 | // const struct _method_list_t * const baseMethods; |
| 4493 | // const struct _objc_protocol_list *const baseProtocols; |
| 4494 | // const struct _ivar_list_t *const ivars; |
| 4495 | // const uint8_t * const weakIvarLayout; |
| 4496 | // const struct _prop_list_t * const properties; |
| 4497 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4498 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4499 | // FIXME. Add 'reserved' field in 64bit abi mode! |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4500 | ClassRonfABITy = llvm::StructType::get(VMContext, IntTy, |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4501 | IntTy, |
| 4502 | IntTy, |
| 4503 | Int8PtrTy, |
| 4504 | Int8PtrTy, |
| 4505 | MethodListnfABIPtrTy, |
| 4506 | ProtocolListnfABIPtrTy, |
| 4507 | IvarListnfABIPtrTy, |
| 4508 | Int8PtrTy, |
| 4509 | PropertyListPtrTy, |
| 4510 | NULL); |
| 4511 | CGM.getModule().addTypeName("struct._class_ro_t", |
| 4512 | ClassRonfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4513 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4514 | // ImpnfABITy - LLVM for id (*)(id, SEL, ...) |
| 4515 | std::vector<const llvm::Type*> Params; |
| 4516 | Params.push_back(ObjectPtrTy); |
| 4517 | Params.push_back(SelectorPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4518 | ImpnfABITy = llvm::PointerType::getUnqual( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4519 | llvm::FunctionType::get(ObjectPtrTy, Params, false)); |
| 4520 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4521 | // struct _class_t { |
| 4522 | // struct _class_t *isa; |
| 4523 | // struct _class_t * const superclass; |
| 4524 | // void *cache; |
| 4525 | // IMP *vtable; |
| 4526 | // struct class_ro_t *ro; |
| 4527 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4528 | |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 4529 | llvm::PATypeHolder ClassTyHolder = llvm::OpaqueType::get(VMContext); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 4530 | ClassnfABITy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4531 | llvm::StructType::get(VMContext, |
| 4532 | llvm::PointerType::getUnqual(ClassTyHolder), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4533 | llvm::PointerType::getUnqual(ClassTyHolder), |
| 4534 | CachePtrTy, |
| 4535 | llvm::PointerType::getUnqual(ImpnfABITy), |
| 4536 | llvm::PointerType::getUnqual(ClassRonfABITy), |
| 4537 | NULL); |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4538 | CGM.getModule().addTypeName("struct._class_t", ClassnfABITy); |
| 4539 | |
| 4540 | cast<llvm::OpaqueType>(ClassTyHolder.get())->refineAbstractTypeTo( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4541 | ClassnfABITy); |
| 4542 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4543 | // LLVM for struct _class_t * |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4544 | ClassnfABIPtrTy = llvm::PointerType::getUnqual(ClassnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4545 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4546 | // struct _category_t { |
| 4547 | // const char * const name; |
| 4548 | // struct _class_t *const cls; |
| 4549 | // const struct _method_list_t * const instance_methods; |
| 4550 | // const struct _method_list_t * const class_methods; |
| 4551 | // const struct _protocol_list_t * const protocols; |
| 4552 | // const struct _prop_list_t * const properties; |
Fariborz Jahanian | 45c2ba0 | 2009-01-23 17:41:22 +0000 | [diff] [blame] | 4553 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4554 | CategorynfABITy = llvm::StructType::get(VMContext, Int8PtrTy, |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4555 | ClassnfABIPtrTy, |
Fariborz Jahanian | 45c2ba0 | 2009-01-23 17:41:22 +0000 | [diff] [blame] | 4556 | MethodListnfABIPtrTy, |
| 4557 | MethodListnfABIPtrTy, |
| 4558 | ProtocolListnfABIPtrTy, |
| 4559 | PropertyListPtrTy, |
| 4560 | NULL); |
| 4561 | CGM.getModule().addTypeName("struct._category_t", CategorynfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4562 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4563 | // New types for nonfragile abi messaging. |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 4564 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 4565 | ASTContext &Ctx = CGM.getContext(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4566 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4567 | // MessageRefTy - LLVM for: |
| 4568 | // struct _message_ref_t { |
| 4569 | // IMP messenger; |
| 4570 | // SEL name; |
| 4571 | // }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4572 | |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 4573 | // First the clang type for struct _message_ref_t |
Abramo Bagnara | 465d41b | 2010-05-11 21:36:43 +0000 | [diff] [blame] | 4574 | RecordDecl *RD = RecordDecl::Create(Ctx, TTK_Struct, |
Daniel Dunbar | daa3ac5 | 2010-04-29 16:29:11 +0000 | [diff] [blame] | 4575 | Ctx.getTranslationUnitDecl(), |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 4576 | SourceLocation(), |
| 4577 | &Ctx.Idents.get("_message_ref_t")); |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4578 | RD->addDecl(FieldDecl::Create(Ctx, RD, SourceLocation(), 0, |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 4579 | Ctx.VoidPtrTy, 0, 0, false)); |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4580 | RD->addDecl(FieldDecl::Create(Ctx, RD, SourceLocation(), 0, |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 4581 | Ctx.getObjCSelType(), 0, 0, false)); |
Douglas Gregor | 838db38 | 2010-02-11 01:19:42 +0000 | [diff] [blame] | 4582 | RD->completeDefinition(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4583 | |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 4584 | MessageRefCTy = Ctx.getTagDeclType(RD); |
| 4585 | MessageRefCPtrTy = Ctx.getPointerType(MessageRefCTy); |
| 4586 | MessageRefTy = cast<llvm::StructType>(Types.ConvertType(MessageRefCTy)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4587 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4588 | // MessageRefPtrTy - LLVM for struct _message_ref_t* |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4589 | MessageRefPtrTy = llvm::PointerType::getUnqual(MessageRefTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4590 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4591 | // SuperMessageRefTy - LLVM for: |
| 4592 | // struct _super_message_ref_t { |
| 4593 | // SUPER_IMP messenger; |
| 4594 | // SEL name; |
| 4595 | // }; |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4596 | SuperMessageRefTy = llvm::StructType::get(VMContext, ImpnfABITy, |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4597 | SelectorPtrTy, |
| 4598 | NULL); |
| 4599 | CGM.getModule().addTypeName("struct._super_message_ref_t", SuperMessageRefTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4600 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4601 | // SuperMessageRefPtrTy - LLVM for struct _super_message_ref_t* |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4602 | SuperMessageRefPtrTy = llvm::PointerType::getUnqual(SuperMessageRefTy); |
| 4603 | |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 4604 | |
| 4605 | // struct objc_typeinfo { |
| 4606 | // const void** vtable; // objc_ehtype_vtable + 2 |
| 4607 | // const char* name; // c++ typeinfo string |
| 4608 | // Class cls; |
| 4609 | // }; |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4610 | EHTypeTy = llvm::StructType::get(VMContext, |
| 4611 | llvm::PointerType::getUnqual(Int8PtrTy), |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 4612 | Int8PtrTy, |
| 4613 | ClassnfABIPtrTy, |
| 4614 | NULL); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 4615 | CGM.getModule().addTypeName("struct._objc_typeinfo", EHTypeTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4616 | EHTypePtrTy = llvm::PointerType::getUnqual(EHTypeTy); |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 4617 | } |
| 4618 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4619 | llvm::Function *CGObjCNonFragileABIMac::ModuleInitFunction() { |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4620 | FinishNonFragileABIModule(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4621 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4622 | return NULL; |
| 4623 | } |
| 4624 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4625 | void CGObjCNonFragileABIMac::AddModuleClassList(const |
| 4626 | std::vector<llvm::GlobalValue*> |
| 4627 | &Container, |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4628 | const char *SymbolName, |
| 4629 | const char *SectionName) { |
| 4630 | unsigned NumClasses = Container.size(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4631 | |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4632 | if (!NumClasses) |
| 4633 | return; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4634 | |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4635 | std::vector<llvm::Constant*> Symbols(NumClasses); |
| 4636 | for (unsigned i=0; i<NumClasses; i++) |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 4637 | Symbols[i] = llvm::ConstantExpr::getBitCast(Container[i], |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4638 | ObjCTypes.Int8PtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4639 | llvm::Constant* Init = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4640 | llvm::ConstantArray::get(llvm::ArrayType::get(ObjCTypes.Int8PtrTy, |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4641 | NumClasses), |
| 4642 | Symbols); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4643 | |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4644 | llvm::GlobalVariable *GV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4645 | new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4646 | llvm::GlobalValue::InternalLinkage, |
| 4647 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4648 | SymbolName); |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 4649 | GV->setAlignment(CGM.getTargetData().getABITypeAlignment(Init->getType())); |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4650 | GV->setSection(SectionName); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4651 | CGM.AddUsedGlobal(GV); |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4652 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4653 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4654 | void CGObjCNonFragileABIMac::FinishNonFragileABIModule() { |
| 4655 | // nonfragile abi has no module definition. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4656 | |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4657 | // Build list of all implemented class addresses in array |
Fariborz Jahanian | f87a0cc | 2009-01-30 20:55:31 +0000 | [diff] [blame] | 4658 | // L_OBJC_LABEL_CLASS_$. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4659 | AddModuleClassList(DefinedClasses, |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4660 | "\01L_OBJC_LABEL_CLASS_$", |
| 4661 | "__DATA, __objc_classlist, regular, no_dead_strip"); |
Fariborz Jahanian | a03d0dd | 2009-11-17 21:37:35 +0000 | [diff] [blame] | 4662 | |
Fariborz Jahanian | a03d0dd | 2009-11-17 21:37:35 +0000 | [diff] [blame] | 4663 | for (unsigned i = 0; i < DefinedClasses.size(); i++) { |
| 4664 | llvm::GlobalValue *IMPLGV = DefinedClasses[i]; |
| 4665 | if (IMPLGV->getLinkage() != llvm::GlobalValue::ExternalWeakLinkage) |
| 4666 | continue; |
| 4667 | IMPLGV->setLinkage(llvm::GlobalValue::ExternalLinkage); |
Fariborz Jahanian | a03d0dd | 2009-11-17 21:37:35 +0000 | [diff] [blame] | 4668 | } |
| 4669 | |
Fariborz Jahanian | 0e93d25 | 2009-12-01 18:25:24 +0000 | [diff] [blame] | 4670 | for (unsigned i = 0; i < DefinedMetaClasses.size(); i++) { |
| 4671 | llvm::GlobalValue *IMPLGV = DefinedMetaClasses[i]; |
| 4672 | if (IMPLGV->getLinkage() != llvm::GlobalValue::ExternalWeakLinkage) |
| 4673 | continue; |
| 4674 | IMPLGV->setLinkage(llvm::GlobalValue::ExternalLinkage); |
| 4675 | } |
Fariborz Jahanian | a03d0dd | 2009-11-17 21:37:35 +0000 | [diff] [blame] | 4676 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4677 | AddModuleClassList(DefinedNonLazyClasses, |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 4678 | "\01L_OBJC_LABEL_NONLAZY_CLASS_$", |
| 4679 | "__DATA, __objc_nlclslist, regular, no_dead_strip"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4680 | |
Fariborz Jahanian | f87a0cc | 2009-01-30 20:55:31 +0000 | [diff] [blame] | 4681 | // Build list of all implemented category addresses in array |
| 4682 | // L_OBJC_LABEL_CATEGORY_$. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4683 | AddModuleClassList(DefinedCategories, |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4684 | "\01L_OBJC_LABEL_CATEGORY_$", |
| 4685 | "__DATA, __objc_catlist, regular, no_dead_strip"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4686 | AddModuleClassList(DefinedNonLazyCategories, |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 4687 | "\01L_OBJC_LABEL_NONLAZY_CATEGORY_$", |
| 4688 | "__DATA, __objc_nlcatlist, regular, no_dead_strip"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4689 | |
Daniel Dunbar | fce176b | 2010-04-25 20:39:01 +0000 | [diff] [blame] | 4690 | EmitImageInfo(); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4691 | } |
| 4692 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 4693 | /// LegacyDispatchedSelector - Returns true if SEL is not in the list of |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 4694 | /// NonLegacyDispatchMethods; false otherwise. What this means is that |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4695 | /// except for the 19 selectors in the list, we generate 32bit-style |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 4696 | /// message dispatch call for all the rest. |
| 4697 | /// |
| 4698 | bool CGObjCNonFragileABIMac::LegacyDispatchedSelector(Selector Sel) { |
Daniel Dunbar | f643b9b | 2010-04-24 17:56:46 +0000 | [diff] [blame] | 4699 | switch (CGM.getCodeGenOpts().getObjCDispatchMethod()) { |
| 4700 | default: |
| 4701 | assert(0 && "Invalid dispatch method!"); |
| 4702 | case CodeGenOptions::Legacy: |
Daniel Dunbar | 2feefe8 | 2010-02-01 21:07:33 +0000 | [diff] [blame] | 4703 | return true; |
Daniel Dunbar | f643b9b | 2010-04-24 17:56:46 +0000 | [diff] [blame] | 4704 | case CodeGenOptions::NonLegacy: |
Fariborz Jahanian | 776dbf9 | 2010-04-19 17:53:30 +0000 | [diff] [blame] | 4705 | return false; |
Daniel Dunbar | f643b9b | 2010-04-24 17:56:46 +0000 | [diff] [blame] | 4706 | case CodeGenOptions::Mixed: |
| 4707 | break; |
| 4708 | } |
| 4709 | |
| 4710 | // If so, see whether this selector is in the white-list of things which must |
| 4711 | // use the new dispatch convention. We lazily build a dense set for this. |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 4712 | if (NonLegacyDispatchMethods.empty()) { |
| 4713 | NonLegacyDispatchMethods.insert(GetNullarySelector("alloc")); |
| 4714 | NonLegacyDispatchMethods.insert(GetNullarySelector("class")); |
| 4715 | NonLegacyDispatchMethods.insert(GetNullarySelector("self")); |
| 4716 | NonLegacyDispatchMethods.insert(GetNullarySelector("isFlipped")); |
| 4717 | NonLegacyDispatchMethods.insert(GetNullarySelector("length")); |
| 4718 | NonLegacyDispatchMethods.insert(GetNullarySelector("count")); |
| 4719 | NonLegacyDispatchMethods.insert(GetNullarySelector("retain")); |
| 4720 | NonLegacyDispatchMethods.insert(GetNullarySelector("release")); |
| 4721 | NonLegacyDispatchMethods.insert(GetNullarySelector("autorelease")); |
| 4722 | NonLegacyDispatchMethods.insert(GetNullarySelector("hash")); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4723 | |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 4724 | NonLegacyDispatchMethods.insert(GetUnarySelector("allocWithZone")); |
| 4725 | NonLegacyDispatchMethods.insert(GetUnarySelector("isKindOfClass")); |
| 4726 | NonLegacyDispatchMethods.insert(GetUnarySelector("respondsToSelector")); |
| 4727 | NonLegacyDispatchMethods.insert(GetUnarySelector("objectForKey")); |
| 4728 | NonLegacyDispatchMethods.insert(GetUnarySelector("objectAtIndex")); |
| 4729 | NonLegacyDispatchMethods.insert(GetUnarySelector("isEqualToString")); |
| 4730 | NonLegacyDispatchMethods.insert(GetUnarySelector("isEqual")); |
| 4731 | NonLegacyDispatchMethods.insert(GetUnarySelector("addObject")); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4732 | // "countByEnumeratingWithState:objects:count" |
Fariborz Jahanian | be53be4 | 2009-05-13 16:19:02 +0000 | [diff] [blame] | 4733 | IdentifierInfo *KeyIdents[] = { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4734 | &CGM.getContext().Idents.get("countByEnumeratingWithState"), |
| 4735 | &CGM.getContext().Idents.get("objects"), |
| 4736 | &CGM.getContext().Idents.get("count") |
Fariborz Jahanian | be53be4 | 2009-05-13 16:19:02 +0000 | [diff] [blame] | 4737 | }; |
| 4738 | NonLegacyDispatchMethods.insert( |
| 4739 | CGM.getContext().Selectors.getSelector(3, KeyIdents)); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 4740 | } |
Daniel Dunbar | f643b9b | 2010-04-24 17:56:46 +0000 | [diff] [blame] | 4741 | |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 4742 | return (NonLegacyDispatchMethods.count(Sel) == 0); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 4743 | } |
| 4744 | |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4745 | // Metadata flags |
| 4746 | enum MetaDataDlags { |
| 4747 | CLS = 0x0, |
| 4748 | CLS_META = 0x1, |
| 4749 | CLS_ROOT = 0x2, |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4750 | OBJC2_CLS_HIDDEN = 0x10, |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4751 | CLS_EXCEPTION = 0x20 |
| 4752 | }; |
| 4753 | /// BuildClassRoTInitializer - generate meta-data for: |
| 4754 | /// struct _class_ro_t { |
| 4755 | /// uint32_t const flags; |
| 4756 | /// uint32_t const instanceStart; |
| 4757 | /// uint32_t const instanceSize; |
| 4758 | /// uint32_t const reserved; // only when building for 64bit targets |
| 4759 | /// const uint8_t * const ivarLayout; |
| 4760 | /// const char *const name; |
| 4761 | /// const struct _method_list_t * const baseMethods; |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4762 | /// const struct _protocol_list_t *const baseProtocols; |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4763 | /// const struct _ivar_list_t *const ivars; |
| 4764 | /// const uint8_t * const weakIvarLayout; |
| 4765 | /// const struct _prop_list_t * const properties; |
| 4766 | /// } |
| 4767 | /// |
| 4768 | llvm::GlobalVariable * CGObjCNonFragileABIMac::BuildClassRoTInitializer( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4769 | unsigned flags, |
| 4770 | unsigned InstanceStart, |
| 4771 | unsigned InstanceSize, |
| 4772 | const ObjCImplementationDecl *ID) { |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4773 | std::string ClassName = ID->getNameAsString(); |
| 4774 | std::vector<llvm::Constant*> Values(10); // 11 for 64bit targets! |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4775 | Values[ 0] = llvm::ConstantInt::get(ObjCTypes.IntTy, flags); |
| 4776 | Values[ 1] = llvm::ConstantInt::get(ObjCTypes.IntTy, InstanceStart); |
| 4777 | Values[ 2] = llvm::ConstantInt::get(ObjCTypes.IntTy, InstanceSize); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4778 | // FIXME. For 64bit targets add 0 here. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4779 | Values[ 3] = (flags & CLS_META) ? GetIvarLayoutName(0, ObjCTypes) |
| 4780 | : BuildIvarLayout(ID, true); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4781 | Values[ 4] = GetClassName(ID->getIdentifier()); |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4782 | // const struct _method_list_t * const baseMethods; |
| 4783 | std::vector<llvm::Constant*> Methods; |
| 4784 | std::string MethodListName("\01l_OBJC_$_"); |
| 4785 | if (flags & CLS_META) { |
| 4786 | MethodListName += "CLASS_METHODS_" + ID->getNameAsString(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4787 | for (ObjCImplementationDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4788 | i = ID->classmeth_begin(), e = ID->classmeth_end(); i != e; ++i) { |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4789 | // Class methods should always be defined. |
| 4790 | Methods.push_back(GetMethodConstant(*i)); |
| 4791 | } |
| 4792 | } else { |
| 4793 | MethodListName += "INSTANCE_METHODS_" + ID->getNameAsString(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4794 | for (ObjCImplementationDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4795 | i = ID->instmeth_begin(), e = ID->instmeth_end(); i != e; ++i) { |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4796 | // Instance methods should always be defined. |
| 4797 | Methods.push_back(GetMethodConstant(*i)); |
| 4798 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4799 | for (ObjCImplementationDecl::propimpl_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4800 | i = ID->propimpl_begin(), e = ID->propimpl_end(); i != e; ++i) { |
Fariborz Jahanian | 939abce | 2009-01-28 22:46:49 +0000 | [diff] [blame] | 4801 | ObjCPropertyImplDecl *PID = *i; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4802 | |
Fariborz Jahanian | 939abce | 2009-01-28 22:46:49 +0000 | [diff] [blame] | 4803 | if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize){ |
| 4804 | ObjCPropertyDecl *PD = PID->getPropertyDecl(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4805 | |
Fariborz Jahanian | 939abce | 2009-01-28 22:46:49 +0000 | [diff] [blame] | 4806 | if (ObjCMethodDecl *MD = PD->getGetterMethodDecl()) |
| 4807 | if (llvm::Constant *C = GetMethodConstant(MD)) |
| 4808 | Methods.push_back(C); |
| 4809 | if (ObjCMethodDecl *MD = PD->getSetterMethodDecl()) |
| 4810 | if (llvm::Constant *C = GetMethodConstant(MD)) |
| 4811 | Methods.push_back(C); |
| 4812 | } |
| 4813 | } |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4814 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4815 | Values[ 5] = EmitMethodList(MethodListName, |
| 4816 | "__DATA, __objc_const", Methods); |
| 4817 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4818 | const ObjCInterfaceDecl *OID = ID->getClassInterface(); |
| 4819 | assert(OID && "CGObjCNonFragileABIMac::BuildClassRoTInitializer"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4820 | Values[ 6] = EmitProtocolList("\01l_OBJC_CLASS_PROTOCOLS_$_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4821 | + OID->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4822 | OID->protocol_begin(), |
| 4823 | OID->protocol_end()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4824 | |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4825 | if (flags & CLS_META) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4826 | Values[ 7] = llvm::Constant::getNullValue(ObjCTypes.IvarListnfABIPtrTy); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4827 | else |
| 4828 | Values[ 7] = EmitIvarList(ID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4829 | Values[ 8] = (flags & CLS_META) ? GetIvarLayoutName(0, ObjCTypes) |
| 4830 | : BuildIvarLayout(ID, false); |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 4831 | if (flags & CLS_META) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4832 | Values[ 9] = llvm::Constant::getNullValue(ObjCTypes.PropertyListPtrTy); |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 4833 | else |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4834 | Values[ 9] = EmitPropertyList("\01l_OBJC_$_PROP_LIST_" + ID->getName(), |
| 4835 | ID, ID->getClassInterface(), ObjCTypes); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 4836 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ClassRonfABITy, |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4837 | Values); |
| 4838 | llvm::GlobalVariable *CLASS_RO_GV = |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4839 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassRonfABITy, false, |
| 4840 | llvm::GlobalValue::InternalLinkage, |
| 4841 | Init, |
| 4842 | (flags & CLS_META) ? |
| 4843 | std::string("\01l_OBJC_METACLASS_RO_$_")+ClassName : |
| 4844 | std::string("\01l_OBJC_CLASS_RO_$_")+ClassName); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4845 | CLASS_RO_GV->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 4846 | CGM.getTargetData().getABITypeAlignment(ObjCTypes.ClassRonfABITy)); |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 4847 | CLASS_RO_GV->setSection("__DATA, __objc_const"); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4848 | return CLASS_RO_GV; |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 4849 | |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4850 | } |
| 4851 | |
| 4852 | /// BuildClassMetaData - This routine defines that to-level meta-data |
| 4853 | /// for the given ClassName for: |
| 4854 | /// struct _class_t { |
| 4855 | /// struct _class_t *isa; |
| 4856 | /// struct _class_t * const superclass; |
| 4857 | /// void *cache; |
| 4858 | /// IMP *vtable; |
| 4859 | /// struct class_ro_t *ro; |
| 4860 | /// } |
| 4861 | /// |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4862 | llvm::GlobalVariable * CGObjCNonFragileABIMac::BuildClassMetaData( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4863 | std::string &ClassName, |
| 4864 | llvm::Constant *IsAGV, |
| 4865 | llvm::Constant *SuperClassGV, |
| 4866 | llvm::Constant *ClassRoGV, |
| 4867 | bool HiddenVisibility) { |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4868 | std::vector<llvm::Constant*> Values(5); |
| 4869 | Values[0] = IsAGV; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4870 | Values[1] = SuperClassGV; |
| 4871 | if (!Values[1]) |
| 4872 | Values[1] = llvm::Constant::getNullValue(ObjCTypes.ClassnfABIPtrTy); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4873 | Values[2] = ObjCEmptyCacheVar; // &ObjCEmptyCacheVar |
| 4874 | Values[3] = ObjCEmptyVtableVar; // &ObjCEmptyVtableVar |
| 4875 | Values[4] = ClassRoGV; // &CLASS_RO_GV |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4876 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ClassnfABITy, |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4877 | Values); |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 4878 | llvm::GlobalVariable *GV = GetClassGlobal(ClassName); |
| 4879 | GV->setInitializer(Init); |
Fariborz Jahanian | dd0db2a | 2009-01-31 01:07:39 +0000 | [diff] [blame] | 4880 | GV->setSection("__DATA, __objc_data"); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4881 | GV->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 4882 | CGM.getTargetData().getABITypeAlignment(ObjCTypes.ClassnfABITy)); |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 4883 | if (HiddenVisibility) |
| 4884 | GV->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4885 | return GV; |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4886 | } |
| 4887 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4888 | bool |
Fariborz Jahanian | ecfbdcb | 2009-05-21 01:03:45 +0000 | [diff] [blame] | 4889 | CGObjCNonFragileABIMac::ImplementationIsNonLazy(const ObjCImplDecl *OD) const { |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4890 | return OD->getClassMethod(GetNullarySelector("load")) != 0; |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 4891 | } |
| 4892 | |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 4893 | void CGObjCNonFragileABIMac::GetClassSizeInfo(const ObjCImplementationDecl *OID, |
Daniel Dunbar | b02532a | 2009-04-19 23:41:48 +0000 | [diff] [blame] | 4894 | uint32_t &InstanceStart, |
| 4895 | uint32_t &InstanceSize) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4896 | const ASTRecordLayout &RL = |
Daniel Dunbar | b4c79e0 | 2009-05-04 21:26:30 +0000 | [diff] [blame] | 4897 | CGM.getContext().getASTObjCImplementationLayout(OID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4898 | |
Daniel Dunbar | 6e8575b | 2009-05-04 23:23:09 +0000 | [diff] [blame] | 4899 | // InstanceSize is really instance end. |
Anders Carlsson | 243a685 | 2009-07-18 21:26:44 +0000 | [diff] [blame] | 4900 | InstanceSize = llvm::RoundUpToAlignment(RL.getDataSize(), 8) / 8; |
Daniel Dunbar | 6e8575b | 2009-05-04 23:23:09 +0000 | [diff] [blame] | 4901 | |
| 4902 | // If there are no fields, the start is the same as the end. |
| 4903 | if (!RL.getFieldCount()) |
| 4904 | InstanceStart = InstanceSize; |
| 4905 | else |
| 4906 | InstanceStart = RL.getFieldOffset(0) / 8; |
Daniel Dunbar | b02532a | 2009-04-19 23:41:48 +0000 | [diff] [blame] | 4907 | } |
| 4908 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4909 | void CGObjCNonFragileABIMac::GenerateClass(const ObjCImplementationDecl *ID) { |
| 4910 | std::string ClassName = ID->getNameAsString(); |
| 4911 | if (!ObjCEmptyCacheVar) { |
| 4912 | ObjCEmptyCacheVar = new llvm::GlobalVariable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4913 | CGM.getModule(), |
| 4914 | ObjCTypes.CacheTy, |
| 4915 | false, |
| 4916 | llvm::GlobalValue::ExternalLinkage, |
| 4917 | 0, |
| 4918 | "_objc_empty_cache"); |
| 4919 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4920 | ObjCEmptyVtableVar = new llvm::GlobalVariable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4921 | CGM.getModule(), |
| 4922 | ObjCTypes.ImpnfABITy, |
| 4923 | false, |
| 4924 | llvm::GlobalValue::ExternalLinkage, |
| 4925 | 0, |
| 4926 | "_objc_empty_vtable"); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4927 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4928 | assert(ID->getClassInterface() && |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4929 | "CGObjCNonFragileABIMac::GenerateClass - class is 0"); |
Daniel Dunbar | 6c1aac8 | 2009-04-20 20:18:54 +0000 | [diff] [blame] | 4930 | // FIXME: Is this correct (that meta class size is never computed)? |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4931 | uint32_t InstanceStart = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 4932 | CGM.getTargetData().getTypeAllocSize(ObjCTypes.ClassnfABITy); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4933 | uint32_t InstanceSize = InstanceStart; |
| 4934 | uint32_t flags = CLS_META; |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 4935 | std::string ObjCMetaClassName(getMetaclassSymbolPrefix()); |
| 4936 | std::string ObjCClassName(getClassSymbolPrefix()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4937 | |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4938 | llvm::GlobalVariable *SuperClassGV, *IsAGV; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4939 | |
| 4940 | bool classIsHidden = |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 4941 | CGM.getDeclVisibilityMode(ID->getClassInterface()) == LangOptions::Hidden; |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 4942 | if (classIsHidden) |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4943 | flags |= OBJC2_CLS_HIDDEN; |
Fariborz Jahanian | 109dfc6 | 2010-04-28 21:28:56 +0000 | [diff] [blame] | 4944 | if (ID->getNumIvarInitializers()) |
| 4945 | flags |= eClassFlags_ABI2_HasCXXStructors; |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4946 | if (!ID->getClassInterface()->getSuperClass()) { |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4947 | // class is root |
| 4948 | flags |= CLS_ROOT; |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 4949 | SuperClassGV = GetClassGlobal(ObjCClassName + ClassName); |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 4950 | IsAGV = GetClassGlobal(ObjCMetaClassName + ClassName); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4951 | } else { |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4952 | // Has a root. Current class is not a root. |
Fariborz Jahanian | fab98c4 | 2009-02-26 18:23:47 +0000 | [diff] [blame] | 4953 | const ObjCInterfaceDecl *Root = ID->getClassInterface(); |
| 4954 | while (const ObjCInterfaceDecl *Super = Root->getSuperClass()) |
| 4955 | Root = Super; |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 4956 | IsAGV = GetClassGlobal(ObjCMetaClassName + Root->getNameAsString()); |
Fariborz Jahanian | 0e93d25 | 2009-12-01 18:25:24 +0000 | [diff] [blame] | 4957 | if (Root->hasAttr<WeakImportAttr>()) |
| 4958 | IsAGV->setLinkage(llvm::GlobalValue::ExternalWeakLinkage); |
Fariborz Jahanian | fab98c4 | 2009-02-26 18:23:47 +0000 | [diff] [blame] | 4959 | // work on super class metadata symbol. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4960 | std::string SuperClassName = |
Fariborz Jahanian | 0e93d25 | 2009-12-01 18:25:24 +0000 | [diff] [blame] | 4961 | ObjCMetaClassName + |
| 4962 | ID->getClassInterface()->getSuperClass()->getNameAsString(); |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 4963 | SuperClassGV = GetClassGlobal(SuperClassName); |
Fariborz Jahanian | a03d0dd | 2009-11-17 21:37:35 +0000 | [diff] [blame] | 4964 | if (ID->getClassInterface()->getSuperClass()->hasAttr<WeakImportAttr>()) |
| 4965 | SuperClassGV->setLinkage(llvm::GlobalValue::ExternalWeakLinkage); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4966 | } |
| 4967 | llvm::GlobalVariable *CLASS_RO_GV = BuildClassRoTInitializer(flags, |
| 4968 | InstanceStart, |
| 4969 | InstanceSize,ID); |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4970 | std::string TClassName = ObjCMetaClassName + ClassName; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4971 | llvm::GlobalVariable *MetaTClass = |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 4972 | BuildClassMetaData(TClassName, IsAGV, SuperClassGV, CLASS_RO_GV, |
| 4973 | classIsHidden); |
Fariborz Jahanian | a03d0dd | 2009-11-17 21:37:35 +0000 | [diff] [blame] | 4974 | DefinedMetaClasses.push_back(MetaTClass); |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 4975 | |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4976 | // Metadata for the class |
| 4977 | flags = CLS; |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 4978 | if (classIsHidden) |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4979 | flags |= OBJC2_CLS_HIDDEN; |
Fariborz Jahanian | 109dfc6 | 2010-04-28 21:28:56 +0000 | [diff] [blame] | 4980 | if (ID->getNumIvarInitializers()) |
| 4981 | flags |= eClassFlags_ABI2_HasCXXStructors; |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 4982 | |
Douglas Gregor | 68584ed | 2009-06-18 16:11:24 +0000 | [diff] [blame] | 4983 | if (hasObjCExceptionAttribute(CGM.getContext(), ID->getClassInterface())) |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 4984 | flags |= CLS_EXCEPTION; |
| 4985 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4986 | if (!ID->getClassInterface()->getSuperClass()) { |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4987 | flags |= CLS_ROOT; |
| 4988 | SuperClassGV = 0; |
Chris Lattner | b7b58b1 | 2009-04-19 06:02:28 +0000 | [diff] [blame] | 4989 | } else { |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4990 | // Has a root. Current class is not a root. |
Fariborz Jahanian | fab98c4 | 2009-02-26 18:23:47 +0000 | [diff] [blame] | 4991 | std::string RootClassName = |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4992 | ID->getClassInterface()->getSuperClass()->getNameAsString(); |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 4993 | SuperClassGV = GetClassGlobal(ObjCClassName + RootClassName); |
Fariborz Jahanian | a03d0dd | 2009-11-17 21:37:35 +0000 | [diff] [blame] | 4994 | if (ID->getClassInterface()->getSuperClass()->hasAttr<WeakImportAttr>()) |
| 4995 | SuperClassGV->setLinkage(llvm::GlobalValue::ExternalWeakLinkage); |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4996 | } |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 4997 | GetClassSizeInfo(ID, InstanceStart, InstanceSize); |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4998 | CLASS_RO_GV = BuildClassRoTInitializer(flags, |
Fariborz Jahanian | f6a077e | 2009-01-24 23:43:01 +0000 | [diff] [blame] | 4999 | InstanceStart, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5000 | InstanceSize, |
Fariborz Jahanian | f6a077e | 2009-01-24 23:43:01 +0000 | [diff] [blame] | 5001 | ID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5002 | |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 5003 | TClassName = ObjCClassName + ClassName; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5004 | llvm::GlobalVariable *ClassMD = |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 5005 | BuildClassMetaData(TClassName, MetaTClass, SuperClassGV, CLASS_RO_GV, |
| 5006 | classIsHidden); |
Fariborz Jahanian | f87a0cc | 2009-01-30 20:55:31 +0000 | [diff] [blame] | 5007 | DefinedClasses.push_back(ClassMD); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5008 | |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 5009 | // Determine if this class is also "non-lazy". |
| 5010 | if (ImplementationIsNonLazy(ID)) |
| 5011 | DefinedNonLazyClasses.push_back(ClassMD); |
| 5012 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5013 | // Force the definition of the EHType if necessary. |
| 5014 | if (flags & CLS_EXCEPTION) |
| 5015 | GetInterfaceEHType(ID->getClassInterface(), true); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 5016 | } |
| 5017 | |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 5018 | /// GenerateProtocolRef - This routine is called to generate code for |
| 5019 | /// a protocol reference expression; as in: |
| 5020 | /// @code |
| 5021 | /// @protocol(Proto1); |
| 5022 | /// @endcode |
| 5023 | /// It generates a weak reference to l_OBJC_PROTOCOL_REFERENCE_$_Proto1 |
| 5024 | /// which will hold address of the protocol meta-data. |
| 5025 | /// |
| 5026 | llvm::Value *CGObjCNonFragileABIMac::GenerateProtocolRef(CGBuilderTy &Builder, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5027 | const ObjCProtocolDecl *PD) { |
| 5028 | |
Fariborz Jahanian | 960cd06 | 2009-04-10 18:47:34 +0000 | [diff] [blame] | 5029 | // This routine is called for @protocol only. So, we must build definition |
| 5030 | // of protocol's meta-data (not a reference to it!) |
| 5031 | // |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5032 | llvm::Constant *Init = |
| 5033 | llvm::ConstantExpr::getBitCast(GetOrEmitProtocol(PD), |
| 5034 | ObjCTypes.ExternalProtocolPtrTy); |
| 5035 | |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 5036 | std::string ProtocolName("\01l_OBJC_PROTOCOL_REFERENCE_$_"); |
| 5037 | ProtocolName += PD->getNameAsCString(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5038 | |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 5039 | llvm::GlobalVariable *PTGV = CGM.getModule().getGlobalVariable(ProtocolName); |
| 5040 | if (PTGV) |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 5041 | return Builder.CreateLoad(PTGV, "tmp"); |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 5042 | PTGV = new llvm::GlobalVariable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5043 | CGM.getModule(), |
| 5044 | Init->getType(), false, |
| 5045 | llvm::GlobalValue::WeakAnyLinkage, |
| 5046 | Init, |
| 5047 | ProtocolName); |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 5048 | PTGV->setSection("__DATA, __objc_protorefs, coalesced, no_dead_strip"); |
| 5049 | PTGV->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5050 | CGM.AddUsedGlobal(PTGV); |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 5051 | return Builder.CreateLoad(PTGV, "tmp"); |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 5052 | } |
| 5053 | |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 5054 | /// GenerateCategory - Build metadata for a category implementation. |
| 5055 | /// struct _category_t { |
| 5056 | /// const char * const name; |
| 5057 | /// struct _class_t *const cls; |
| 5058 | /// const struct _method_list_t * const instance_methods; |
| 5059 | /// const struct _method_list_t * const class_methods; |
| 5060 | /// const struct _protocol_list_t * const protocols; |
| 5061 | /// const struct _prop_list_t * const properties; |
| 5062 | /// } |
| 5063 | /// |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 5064 | void CGObjCNonFragileABIMac::GenerateCategory(const ObjCCategoryImplDecl *OCD) { |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 5065 | const ObjCInterfaceDecl *Interface = OCD->getClassInterface(); |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 5066 | const char *Prefix = "\01l_OBJC_$_CATEGORY_"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5067 | std::string ExtCatName(Prefix + Interface->getNameAsString()+ |
| 5068 | "_$_" + OCD->getNameAsString()); |
| 5069 | std::string ExtClassName(getClassSymbolPrefix() + |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 5070 | Interface->getNameAsString()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5071 | |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 5072 | std::vector<llvm::Constant*> Values(6); |
| 5073 | Values[0] = GetClassName(OCD->getIdentifier()); |
| 5074 | // meta-class entry symbol |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 5075 | llvm::GlobalVariable *ClassGV = GetClassGlobal(ExtClassName); |
Fariborz Jahanian | 2cdcc4c | 2009-11-17 22:02:21 +0000 | [diff] [blame] | 5076 | if (Interface->hasAttr<WeakImportAttr>()) |
| 5077 | ClassGV->setLinkage(llvm::GlobalValue::ExternalWeakLinkage); |
| 5078 | |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 5079 | Values[1] = ClassGV; |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 5080 | std::vector<llvm::Constant*> Methods; |
| 5081 | std::string MethodListName(Prefix); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5082 | MethodListName += "INSTANCE_METHODS_" + Interface->getNameAsString() + |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 5083 | "_$_" + OCD->getNameAsString(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5084 | |
| 5085 | for (ObjCCategoryImplDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 5086 | i = OCD->instmeth_begin(), e = OCD->instmeth_end(); i != e; ++i) { |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 5087 | // Instance methods should always be defined. |
| 5088 | Methods.push_back(GetMethodConstant(*i)); |
| 5089 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5090 | |
| 5091 | Values[2] = EmitMethodList(MethodListName, |
| 5092 | "__DATA, __objc_const", |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 5093 | Methods); |
| 5094 | |
| 5095 | MethodListName = Prefix; |
| 5096 | MethodListName += "CLASS_METHODS_" + Interface->getNameAsString() + "_$_" + |
| 5097 | OCD->getNameAsString(); |
| 5098 | Methods.clear(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5099 | for (ObjCCategoryImplDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 5100 | i = OCD->classmeth_begin(), e = OCD->classmeth_end(); i != e; ++i) { |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 5101 | // Class methods should always be defined. |
| 5102 | Methods.push_back(GetMethodConstant(*i)); |
| 5103 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5104 | |
| 5105 | Values[3] = EmitMethodList(MethodListName, |
| 5106 | "__DATA, __objc_const", |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 5107 | Methods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5108 | const ObjCCategoryDecl *Category = |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 5109 | Interface->FindCategoryDeclaration(OCD->getIdentifier()); |
Fariborz Jahanian | 943ed6f | 2009-02-13 17:52:22 +0000 | [diff] [blame] | 5110 | if (Category) { |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5111 | llvm::SmallString<256> ExtName; |
| 5112 | llvm::raw_svector_ostream(ExtName) << Interface->getName() << "_$_" |
| 5113 | << OCD->getName(); |
Fariborz Jahanian | 943ed6f | 2009-02-13 17:52:22 +0000 | [diff] [blame] | 5114 | Values[4] = EmitProtocolList("\01l_OBJC_CATEGORY_PROTOCOLS_$_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5115 | + Interface->getName() + "_$_" |
| 5116 | + Category->getName(), |
Fariborz Jahanian | 943ed6f | 2009-02-13 17:52:22 +0000 | [diff] [blame] | 5117 | Category->protocol_begin(), |
| 5118 | Category->protocol_end()); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5119 | Values[5] = EmitPropertyList("\01l_OBJC_$_PROP_LIST_" + ExtName.str(), |
| 5120 | OCD, Category, ObjCTypes); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5121 | } else { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 5122 | Values[4] = llvm::Constant::getNullValue(ObjCTypes.ProtocolListnfABIPtrTy); |
| 5123 | Values[5] = llvm::Constant::getNullValue(ObjCTypes.PropertyListPtrTy); |
Fariborz Jahanian | 943ed6f | 2009-02-13 17:52:22 +0000 | [diff] [blame] | 5124 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5125 | |
| 5126 | llvm::Constant *Init = |
| 5127 | llvm::ConstantStruct::get(ObjCTypes.CategorynfABITy, |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 5128 | Values); |
| 5129 | llvm::GlobalVariable *GCATV |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5130 | = new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.CategorynfABITy, |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 5131 | false, |
| 5132 | llvm::GlobalValue::InternalLinkage, |
| 5133 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5134 | ExtCatName); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 5135 | GCATV->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 5136 | CGM.getTargetData().getABITypeAlignment(ObjCTypes.CategorynfABITy)); |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 5137 | GCATV->setSection("__DATA, __objc_const"); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5138 | CGM.AddUsedGlobal(GCATV); |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 5139 | DefinedCategories.push_back(GCATV); |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 5140 | |
| 5141 | // Determine if this category is also "non-lazy". |
| 5142 | if (ImplementationIsNonLazy(OCD)) |
| 5143 | DefinedNonLazyCategories.push_back(GCATV); |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 5144 | } |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5145 | |
| 5146 | /// GetMethodConstant - Return a struct objc_method constant for the |
| 5147 | /// given method if it has been defined. The result is null if the |
| 5148 | /// method has not been defined. The return value has type MethodPtrTy. |
| 5149 | llvm::Constant *CGObjCNonFragileABIMac::GetMethodConstant( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5150 | const ObjCMethodDecl *MD) { |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5151 | // FIXME: Use DenseMap::lookup |
| 5152 | llvm::Function *Fn = MethodDefinitions[MD]; |
| 5153 | if (!Fn) |
| 5154 | return 0; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5155 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5156 | std::vector<llvm::Constant*> Method(3); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5157 | Method[0] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 5158 | llvm::ConstantExpr::getBitCast(GetMethodVarName(MD->getSelector()), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5159 | ObjCTypes.SelectorPtrTy); |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5160 | Method[1] = GetMethodVarType(MD); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 5161 | Method[2] = llvm::ConstantExpr::getBitCast(Fn, ObjCTypes.Int8PtrTy); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 5162 | return llvm::ConstantStruct::get(ObjCTypes.MethodTy, Method); |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5163 | } |
| 5164 | |
| 5165 | /// EmitMethodList - Build meta-data for method declarations |
| 5166 | /// struct _method_list_t { |
| 5167 | /// uint32_t entsize; // sizeof(struct _objc_method) |
| 5168 | /// uint32_t method_count; |
| 5169 | /// struct _objc_method method_list[method_count]; |
| 5170 | /// } |
| 5171 | /// |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5172 | llvm::Constant *CGObjCNonFragileABIMac::EmitMethodList(llvm::Twine Name, |
| 5173 | const char *Section, |
| 5174 | const ConstantVector &Methods) { |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5175 | // Return null for empty list. |
| 5176 | if (Methods.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 5177 | return llvm::Constant::getNullValue(ObjCTypes.MethodListnfABIPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5178 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5179 | std::vector<llvm::Constant*> Values(3); |
| 5180 | // sizeof(struct _objc_method) |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5181 | unsigned Size = CGM.getTargetData().getTypeAllocSize(ObjCTypes.MethodTy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 5182 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5183 | // method_count |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 5184 | Values[1] = llvm::ConstantInt::get(ObjCTypes.IntTy, Methods.size()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 5185 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.MethodTy, |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5186 | Methods.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 5187 | Values[2] = llvm::ConstantArray::get(AT, Methods); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 5188 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5189 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5190 | llvm::GlobalVariable *GV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5191 | new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5192 | llvm::GlobalValue::InternalLinkage, |
| 5193 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5194 | Name); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 5195 | GV->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 5196 | CGM.getTargetData().getABITypeAlignment(Init->getType())); |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5197 | GV->setSection(Section); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5198 | CGM.AddUsedGlobal(GV); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 5199 | return llvm::ConstantExpr::getBitCast(GV, |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 5200 | ObjCTypes.MethodListnfABIPtrTy); |
| 5201 | } |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5202 | |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 5203 | /// ObjCIvarOffsetVariable - Returns the ivar offset variable for |
| 5204 | /// the given ivar. |
Daniel Dunbar | e83be12 | 2010-04-02 21:14:02 +0000 | [diff] [blame] | 5205 | llvm::GlobalVariable * |
| 5206 | CGObjCNonFragileABIMac::ObjCIvarOffsetVariable(const ObjCInterfaceDecl *ID, |
| 5207 | const ObjCIvarDecl *Ivar) { |
| 5208 | const ObjCInterfaceDecl *Container = Ivar->getContainingInterface(); |
Daniel Dunbar | a81419d | 2009-05-05 00:36:57 +0000 | [diff] [blame] | 5209 | std::string Name = "OBJC_IVAR_$_" + Container->getNameAsString() + |
Douglas Gregor | 6ab3524 | 2009-04-09 21:40:53 +0000 | [diff] [blame] | 5210 | '.' + Ivar->getNameAsString(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5211 | llvm::GlobalVariable *IvarOffsetGV = |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 5212 | CGM.getModule().getGlobalVariable(Name); |
| 5213 | if (!IvarOffsetGV) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5214 | IvarOffsetGV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5215 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.LongTy, |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 5216 | false, |
| 5217 | llvm::GlobalValue::ExternalLinkage, |
| 5218 | 0, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5219 | Name); |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 5220 | return IvarOffsetGV; |
| 5221 | } |
| 5222 | |
Daniel Dunbar | e83be12 | 2010-04-02 21:14:02 +0000 | [diff] [blame] | 5223 | llvm::Constant * |
| 5224 | CGObjCNonFragileABIMac::EmitIvarOffsetVar(const ObjCInterfaceDecl *ID, |
| 5225 | const ObjCIvarDecl *Ivar, |
| 5226 | unsigned long int Offset) { |
Daniel Dunbar | 737c502 | 2009-04-19 00:44:02 +0000 | [diff] [blame] | 5227 | llvm::GlobalVariable *IvarOffsetGV = ObjCIvarOffsetVariable(ID, Ivar); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5228 | IvarOffsetGV->setInitializer(llvm::ConstantInt::get(ObjCTypes.LongTy, |
Daniel Dunbar | 737c502 | 2009-04-19 00:44:02 +0000 | [diff] [blame] | 5229 | Offset)); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 5230 | IvarOffsetGV->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 5231 | CGM.getTargetData().getABITypeAlignment(ObjCTypes.LongTy)); |
Daniel Dunbar | 737c502 | 2009-04-19 00:44:02 +0000 | [diff] [blame] | 5232 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 5233 | // FIXME: This matches gcc, but shouldn't the visibility be set on the use as |
| 5234 | // well (i.e., in ObjCIvarOffsetVariable). |
Daniel Dunbar | 737c502 | 2009-04-19 00:44:02 +0000 | [diff] [blame] | 5235 | if (Ivar->getAccessControl() == ObjCIvarDecl::Private || |
| 5236 | Ivar->getAccessControl() == ObjCIvarDecl::Package || |
| 5237 | CGM.getDeclVisibilityMode(ID) == LangOptions::Hidden) |
Fariborz Jahanian | 2fa5a27 | 2009-01-28 01:36:42 +0000 | [diff] [blame] | 5238 | IvarOffsetGV->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 5239 | else |
Fariborz Jahanian | 77c9fd2 | 2009-04-06 18:30:00 +0000 | [diff] [blame] | 5240 | IvarOffsetGV->setVisibility(llvm::GlobalValue::DefaultVisibility); |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 5241 | IvarOffsetGV->setSection("__DATA, __objc_const"); |
Fariborz Jahanian | 45012a7 | 2009-02-03 00:09:52 +0000 | [diff] [blame] | 5242 | return IvarOffsetGV; |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 5243 | } |
| 5244 | |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5245 | /// EmitIvarList - Emit the ivar list for the given |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5246 | /// implementation. The return value has type |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5247 | /// IvarListnfABIPtrTy. |
| 5248 | /// struct _ivar_t { |
| 5249 | /// unsigned long int *offset; // pointer to ivar offset location |
| 5250 | /// char *name; |
| 5251 | /// char *type; |
| 5252 | /// uint32_t alignment; |
| 5253 | /// uint32_t size; |
| 5254 | /// } |
| 5255 | /// struct _ivar_list_t { |
| 5256 | /// uint32 entsize; // sizeof(struct _ivar_t) |
| 5257 | /// uint32 count; |
| 5258 | /// struct _iver_t list[count]; |
| 5259 | /// } |
| 5260 | /// |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 5261 | |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5262 | llvm::Constant *CGObjCNonFragileABIMac::EmitIvarList( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5263 | const ObjCImplementationDecl *ID) { |
| 5264 | |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5265 | std::vector<llvm::Constant*> Ivars, Ivar(5); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5266 | |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5267 | const ObjCInterfaceDecl *OID = ID->getClassInterface(); |
| 5268 | assert(OID && "CGObjCNonFragileABIMac::EmitIvarList - null interface"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5269 | |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 5270 | // FIXME. Consolidate this with similar code in GenerateClass. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5271 | |
Daniel Dunbar | 91636d6 | 2009-04-20 00:33:43 +0000 | [diff] [blame] | 5272 | // Collect declared and synthesized ivars in a small vector. |
Fariborz Jahanian | 1819188 | 2009-03-31 18:11:23 +0000 | [diff] [blame] | 5273 | llvm::SmallVector<ObjCIvarDecl*, 16> OIvars; |
Fariborz Jahanian | 8e6ac1d | 2009-06-04 01:19:09 +0000 | [diff] [blame] | 5274 | CGM.getContext().ShallowCollectObjCIvars(OID, OIvars); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5275 | |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 5276 | for (unsigned i = 0, e = OIvars.size(); i != e; ++i) { |
| 5277 | ObjCIvarDecl *IVD = OIvars[i]; |
Fariborz Jahanian | 8e6ac1d | 2009-06-04 01:19:09 +0000 | [diff] [blame] | 5278 | // Ignore unnamed bit-fields. |
| 5279 | if (!IVD->getDeclName()) |
| 5280 | continue; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5281 | Ivar[0] = EmitIvarOffsetVar(ID->getClassInterface(), IVD, |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 5282 | ComputeIvarBaseOffset(CGM, ID, IVD)); |
Daniel Dunbar | 3fea0c0 | 2009-04-22 08:22:17 +0000 | [diff] [blame] | 5283 | Ivar[1] = GetMethodVarName(IVD->getIdentifier()); |
| 5284 | Ivar[2] = GetMethodVarType(IVD); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5285 | const llvm::Type *FieldTy = |
Daniel Dunbar | 3fea0c0 | 2009-04-22 08:22:17 +0000 | [diff] [blame] | 5286 | CGM.getTypes().ConvertTypeForMem(IVD->getType()); |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5287 | unsigned Size = CGM.getTargetData().getTypeAllocSize(FieldTy); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5288 | unsigned Align = CGM.getContext().getPreferredTypeAlign( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5289 | IVD->getType().getTypePtr()) >> 3; |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5290 | Align = llvm::Log2_32(Align); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 5291 | Ivar[3] = llvm::ConstantInt::get(ObjCTypes.IntTy, Align); |
Daniel Dunbar | 91636d6 | 2009-04-20 00:33:43 +0000 | [diff] [blame] | 5292 | // NOTE. Size of a bitfield does not match gcc's, because of the |
| 5293 | // way bitfields are treated special in each. But I am told that |
| 5294 | // 'size' for bitfield ivars is ignored by the runtime so it does |
| 5295 | // not matter. If it matters, there is enough info to get the |
| 5296 | // bitfield right! |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 5297 | Ivar[4] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 5298 | Ivars.push_back(llvm::ConstantStruct::get(ObjCTypes.IvarnfABITy, Ivar)); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5299 | } |
| 5300 | // Return null for empty list. |
| 5301 | if (Ivars.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 5302 | return llvm::Constant::getNullValue(ObjCTypes.IvarListnfABIPtrTy); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5303 | std::vector<llvm::Constant*> Values(3); |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5304 | unsigned Size = CGM.getTargetData().getTypeAllocSize(ObjCTypes.IvarnfABITy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 5305 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
| 5306 | Values[1] = llvm::ConstantInt::get(ObjCTypes.IntTy, Ivars.size()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 5307 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.IvarnfABITy, |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5308 | Ivars.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 5309 | Values[2] = llvm::ConstantArray::get(AT, Ivars); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 5310 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5311 | const char *Prefix = "\01l_OBJC_$_INSTANCE_VARIABLES_"; |
| 5312 | llvm::GlobalVariable *GV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5313 | new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 5314 | llvm::GlobalValue::InternalLinkage, |
| 5315 | Init, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5316 | Prefix + OID->getName()); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 5317 | GV->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 5318 | CGM.getTargetData().getABITypeAlignment(Init->getType())); |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 5319 | GV->setSection("__DATA, __objc_const"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5320 | |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5321 | CGM.AddUsedGlobal(GV); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 5322 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.IvarListnfABIPtrTy); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5323 | } |
| 5324 | |
| 5325 | llvm::Constant *CGObjCNonFragileABIMac::GetOrEmitProtocolRef( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5326 | const ObjCProtocolDecl *PD) { |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5327 | llvm::GlobalVariable *&Entry = Protocols[PD->getIdentifier()]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5328 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5329 | if (!Entry) { |
| 5330 | // We use the initializer as a marker of whether this is a forward |
| 5331 | // reference or not. At module finalization we add the empty |
| 5332 | // contents for protocols which were referenced but never defined. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5333 | Entry = |
| 5334 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ProtocolnfABITy, false, |
| 5335 | llvm::GlobalValue::ExternalLinkage, |
| 5336 | 0, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5337 | "\01l_OBJC_PROTOCOL_$_" + PD->getName()); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5338 | Entry->setSection("__DATA,__datacoal_nt,coalesced"); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5339 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5340 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5341 | return Entry; |
| 5342 | } |
| 5343 | |
| 5344 | /// GetOrEmitProtocol - Generate the protocol meta-data: |
| 5345 | /// @code |
| 5346 | /// struct _protocol_t { |
| 5347 | /// id isa; // NULL |
| 5348 | /// const char * const protocol_name; |
| 5349 | /// const struct _protocol_list_t * protocol_list; // super protocols |
| 5350 | /// const struct method_list_t * const instance_methods; |
| 5351 | /// const struct method_list_t * const class_methods; |
| 5352 | /// const struct method_list_t *optionalInstanceMethods; |
| 5353 | /// const struct method_list_t *optionalClassMethods; |
| 5354 | /// const struct _prop_list_t * properties; |
| 5355 | /// const uint32_t size; // sizeof(struct _protocol_t) |
| 5356 | /// const uint32_t flags; // = 0 |
| 5357 | /// } |
| 5358 | /// @endcode |
| 5359 | /// |
| 5360 | |
| 5361 | llvm::Constant *CGObjCNonFragileABIMac::GetOrEmitProtocol( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5362 | const ObjCProtocolDecl *PD) { |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5363 | llvm::GlobalVariable *&Entry = Protocols[PD->getIdentifier()]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5364 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5365 | // Early exit if a defining object has already been generated. |
| 5366 | if (Entry && Entry->hasInitializer()) |
| 5367 | return Entry; |
| 5368 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5369 | // Construct method lists. |
| 5370 | std::vector<llvm::Constant*> InstanceMethods, ClassMethods; |
| 5371 | std::vector<llvm::Constant*> OptInstanceMethods, OptClassMethods; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5372 | for (ObjCProtocolDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 5373 | i = PD->instmeth_begin(), e = PD->instmeth_end(); i != e; ++i) { |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5374 | ObjCMethodDecl *MD = *i; |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 5375 | llvm::Constant *C = GetMethodDescriptionConstant(MD); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5376 | if (MD->getImplementationControl() == ObjCMethodDecl::Optional) { |
| 5377 | OptInstanceMethods.push_back(C); |
| 5378 | } else { |
| 5379 | InstanceMethods.push_back(C); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5380 | } |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5381 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5382 | |
| 5383 | for (ObjCProtocolDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 5384 | i = PD->classmeth_begin(), e = PD->classmeth_end(); i != e; ++i) { |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5385 | ObjCMethodDecl *MD = *i; |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 5386 | llvm::Constant *C = GetMethodDescriptionConstant(MD); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5387 | if (MD->getImplementationControl() == ObjCMethodDecl::Optional) { |
| 5388 | OptClassMethods.push_back(C); |
| 5389 | } else { |
| 5390 | ClassMethods.push_back(C); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5391 | } |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5392 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5393 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5394 | std::vector<llvm::Constant*> Values(10); |
| 5395 | // isa is NULL |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 5396 | Values[0] = llvm::Constant::getNullValue(ObjCTypes.ObjectPtrTy); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5397 | Values[1] = GetClassName(PD->getIdentifier()); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5398 | Values[2] = EmitProtocolList("\01l_OBJC_$_PROTOCOL_REFS_" + PD->getName(), |
| 5399 | PD->protocol_begin(), |
| 5400 | PD->protocol_end()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5401 | |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 5402 | Values[3] = EmitMethodList("\01l_OBJC_$_PROTOCOL_INSTANCE_METHODS_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5403 | + PD->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5404 | "__DATA, __objc_const", |
| 5405 | InstanceMethods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5406 | Values[4] = EmitMethodList("\01l_OBJC_$_PROTOCOL_CLASS_METHODS_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5407 | + PD->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5408 | "__DATA, __objc_const", |
| 5409 | ClassMethods); |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 5410 | Values[5] = EmitMethodList("\01l_OBJC_$_PROTOCOL_INSTANCE_METHODS_OPT_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5411 | + PD->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5412 | "__DATA, __objc_const", |
| 5413 | OptInstanceMethods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5414 | Values[6] = EmitMethodList("\01l_OBJC_$_PROTOCOL_CLASS_METHODS_OPT_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5415 | + PD->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5416 | "__DATA, __objc_const", |
| 5417 | OptClassMethods); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5418 | Values[7] = EmitPropertyList("\01l_OBJC_$_PROP_LIST_" + PD->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5419 | 0, PD, ObjCTypes); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5420 | uint32_t Size = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5421 | CGM.getTargetData().getTypeAllocSize(ObjCTypes.ProtocolnfABITy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 5422 | Values[8] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 5423 | Values[9] = llvm::Constant::getNullValue(ObjCTypes.IntTy); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 5424 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ProtocolnfABITy, |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5425 | Values); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5426 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5427 | if (Entry) { |
| 5428 | // Already created, fix the linkage and update the initializer. |
Mike Stump | 286acbd | 2009-03-07 16:33:28 +0000 | [diff] [blame] | 5429 | Entry->setLinkage(llvm::GlobalValue::WeakAnyLinkage); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5430 | Entry->setInitializer(Init); |
| 5431 | } else { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5432 | Entry = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5433 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ProtocolnfABITy, |
| 5434 | false, llvm::GlobalValue::WeakAnyLinkage, Init, |
| 5435 | "\01l_OBJC_PROTOCOL_$_" + PD->getName()); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 5436 | Entry->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 5437 | CGM.getTargetData().getABITypeAlignment(ObjCTypes.ProtocolnfABITy)); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5438 | Entry->setSection("__DATA,__datacoal_nt,coalesced"); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5439 | } |
Fariborz Jahanian | 8448c2c | 2009-01-29 20:10:59 +0000 | [diff] [blame] | 5440 | Entry->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5441 | CGM.AddUsedGlobal(Entry); |
| 5442 | |
Fariborz Jahanian | 8448c2c | 2009-01-29 20:10:59 +0000 | [diff] [blame] | 5443 | // Use this protocol meta-data to build protocol list table in section |
| 5444 | // __DATA, __objc_protolist |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5445 | llvm::GlobalVariable *PTGV = |
| 5446 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ProtocolnfABIPtrTy, |
| 5447 | false, llvm::GlobalValue::WeakAnyLinkage, Entry, |
| 5448 | "\01l_OBJC_LABEL_PROTOCOL_$_" + PD->getName()); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 5449 | PTGV->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 5450 | CGM.getTargetData().getABITypeAlignment(ObjCTypes.ProtocolnfABIPtrTy)); |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 5451 | PTGV->setSection("__DATA, __objc_protolist, coalesced, no_dead_strip"); |
Fariborz Jahanian | 8448c2c | 2009-01-29 20:10:59 +0000 | [diff] [blame] | 5452 | PTGV->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5453 | CGM.AddUsedGlobal(PTGV); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5454 | return Entry; |
| 5455 | } |
| 5456 | |
| 5457 | /// EmitProtocolList - Generate protocol list meta-data: |
| 5458 | /// @code |
| 5459 | /// struct _protocol_list_t { |
| 5460 | /// long protocol_count; // Note, this is 32/64 bit |
| 5461 | /// struct _protocol_t[protocol_count]; |
| 5462 | /// } |
| 5463 | /// @endcode |
| 5464 | /// |
| 5465 | llvm::Constant * |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5466 | CGObjCNonFragileABIMac::EmitProtocolList(llvm::Twine Name, |
| 5467 | ObjCProtocolDecl::protocol_iterator begin, |
| 5468 | ObjCProtocolDecl::protocol_iterator end) { |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5469 | std::vector<llvm::Constant*> ProtocolRefs; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5470 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5471 | // Just return null for empty protocol lists |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5472 | if (begin == end) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 5473 | return llvm::Constant::getNullValue(ObjCTypes.ProtocolListnfABIPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5474 | |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 5475 | // FIXME: We shouldn't need to do this lookup here, should we? |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5476 | llvm::SmallString<256> TmpName; |
| 5477 | Name.toVector(TmpName); |
| 5478 | llvm::GlobalVariable *GV = |
| 5479 | CGM.getModule().getGlobalVariable(TmpName.str(), true); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5480 | if (GV) |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5481 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.ProtocolListnfABIPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5482 | |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 5483 | for (; begin != end; ++begin) |
| 5484 | ProtocolRefs.push_back(GetProtocolRef(*begin)); // Implemented??? |
| 5485 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5486 | // This list is null terminated. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 5487 | ProtocolRefs.push_back(llvm::Constant::getNullValue( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5488 | ObjCTypes.ProtocolnfABIPtrTy)); |
| 5489 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5490 | std::vector<llvm::Constant*> Values(2); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 5491 | Values[0] = |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 5492 | llvm::ConstantInt::get(ObjCTypes.LongTy, ProtocolRefs.size() - 1); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5493 | Values[1] = |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 5494 | llvm::ConstantArray::get( |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 5495 | llvm::ArrayType::get(ObjCTypes.ProtocolnfABIPtrTy, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5496 | ProtocolRefs.size()), |
| 5497 | ProtocolRefs); |
| 5498 | |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 5499 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5500 | GV = new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5501 | llvm::GlobalValue::InternalLinkage, |
| 5502 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5503 | Name); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5504 | GV->setSection("__DATA, __objc_const"); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 5505 | GV->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 5506 | CGM.getTargetData().getABITypeAlignment(Init->getType())); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5507 | CGM.AddUsedGlobal(GV); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5508 | return llvm::ConstantExpr::getBitCast(GV, |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 5509 | ObjCTypes.ProtocolListnfABIPtrTy); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 5510 | } |
| 5511 | |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 5512 | /// GetMethodDescriptionConstant - This routine build following meta-data: |
| 5513 | /// struct _objc_method { |
| 5514 | /// SEL _cmd; |
| 5515 | /// char *method_type; |
| 5516 | /// char *_imp; |
| 5517 | /// } |
| 5518 | |
| 5519 | llvm::Constant * |
| 5520 | CGObjCNonFragileABIMac::GetMethodDescriptionConstant(const ObjCMethodDecl *MD) { |
| 5521 | std::vector<llvm::Constant*> Desc(3); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 5522 | Desc[0] = |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5523 | llvm::ConstantExpr::getBitCast(GetMethodVarName(MD->getSelector()), |
| 5524 | ObjCTypes.SelectorPtrTy); |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 5525 | Desc[1] = GetMethodVarType(MD); |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 5526 | // Protocol methods have no implementation. So, this entry is always NULL. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 5527 | Desc[2] = llvm::Constant::getNullValue(ObjCTypes.Int8PtrTy); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 5528 | return llvm::ConstantStruct::get(ObjCTypes.MethodTy, Desc); |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 5529 | } |
Fariborz Jahanian | 45012a7 | 2009-02-03 00:09:52 +0000 | [diff] [blame] | 5530 | |
| 5531 | /// EmitObjCValueForIvar - Code Gen for nonfragile ivar reference. |
| 5532 | /// This code gen. amounts to generating code for: |
| 5533 | /// @code |
| 5534 | /// (type *)((char *)base + _OBJC_IVAR_$_.ivar; |
| 5535 | /// @encode |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5536 | /// |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 5537 | LValue CGObjCNonFragileABIMac::EmitObjCValueForIvar( |
John McCall | 506b57e | 2010-05-17 21:00:27 +0000 | [diff] [blame] | 5538 | CodeGen::CodeGenFunction &CGF, |
| 5539 | QualType ObjectTy, |
| 5540 | llvm::Value *BaseValue, |
| 5541 | const ObjCIvarDecl *Ivar, |
| 5542 | unsigned CVRQualifiers) { |
| 5543 | ObjCInterfaceDecl *ID = ObjectTy->getAs<ObjCObjectType>()->getInterface(); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 5544 | return EmitValueForIvarAtOffset(CGF, ID, BaseValue, Ivar, CVRQualifiers, |
| 5545 | EmitIvarOffset(CGF, ID, Ivar)); |
Fariborz Jahanian | 45012a7 | 2009-02-03 00:09:52 +0000 | [diff] [blame] | 5546 | } |
| 5547 | |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 5548 | llvm::Value *CGObjCNonFragileABIMac::EmitIvarOffset( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5549 | CodeGen::CodeGenFunction &CGF, |
| 5550 | const ObjCInterfaceDecl *Interface, |
| 5551 | const ObjCIvarDecl *Ivar) { |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 5552 | return CGF.Builder.CreateLoad(ObjCIvarOffsetVariable(Interface, Ivar),"ivar"); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 5553 | } |
| 5554 | |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 5555 | CodeGen::RValue CGObjCNonFragileABIMac::EmitMessageSend( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5556 | CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 5557 | ReturnValueSlot Return, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5558 | QualType ResultType, |
| 5559 | Selector Sel, |
| 5560 | llvm::Value *Receiver, |
| 5561 | QualType Arg0Ty, |
| 5562 | bool IsSuper, |
| 5563 | const CallArgList &CallArgs) { |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 5564 | // FIXME. Even though IsSuper is passes. This function doese not handle calls |
| 5565 | // to 'super' receivers. |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5566 | CodeGenTypes &Types = CGM.getTypes(); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5567 | llvm::Value *Arg0 = Receiver; |
| 5568 | if (!IsSuper) |
| 5569 | Arg0 = CGF.Builder.CreateBitCast(Arg0, ObjCTypes.ObjectPtrTy, "tmp"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5570 | |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5571 | // Find the message function name. |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 5572 | // FIXME. This is too much work to get the ABI-specific result type needed to |
| 5573 | // find the message name. |
John McCall | ead608a | 2010-02-26 00:48:12 +0000 | [diff] [blame] | 5574 | const CGFunctionInfo &FnInfo |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 5575 | = Types.getFunctionInfo(ResultType, CallArgList(), |
| 5576 | FunctionType::ExtInfo()); |
Fariborz Jahanian | 70b51c7 | 2009-04-30 23:08:58 +0000 | [diff] [blame] | 5577 | llvm::Constant *Fn = 0; |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5578 | std::string Name("\01l_"); |
Daniel Dunbar | dacf9dd | 2010-07-14 23:39:36 +0000 | [diff] [blame] | 5579 | if (CGM.ReturnTypeUsesSRet(FnInfo)) { |
Fariborz Jahanian | c170852 | 2009-02-05 18:00:27 +0000 | [diff] [blame] | 5580 | #if 0 |
| 5581 | // unlike what is documented. gcc never generates this API!! |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5582 | if (Receiver->getType() == ObjCTypes.ObjectPtrTy) { |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 5583 | Fn = ObjCTypes.getMessageSendIdStretFixupFn(); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5584 | // FIXME. Is there a better way of getting these names. |
| 5585 | // They are available in RuntimeFunctions vector pair. |
| 5586 | Name += "objc_msgSendId_stret_fixup"; |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5587 | } else |
Fariborz Jahanian | c170852 | 2009-02-05 18:00:27 +0000 | [diff] [blame] | 5588 | #endif |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5589 | if (IsSuper) { |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 5590 | Fn = ObjCTypes.getMessageSendSuper2StretFixupFn(); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5591 | Name += "objc_msgSendSuper2_stret_fixup"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5592 | } else { |
| 5593 | Fn = ObjCTypes.getMessageSendStretFixupFn(); |
| 5594 | Name += "objc_msgSend_stret_fixup"; |
| 5595 | } |
Daniel Dunbar | dacf9dd | 2010-07-14 23:39:36 +0000 | [diff] [blame] | 5596 | } else if (!IsSuper && CGM.ReturnTypeUsesFPRet(ResultType)) { |
| 5597 | Fn = ObjCTypes.getMessageSendFpretFixupFn(); |
| 5598 | Name += "objc_msgSend_fpret_fixup"; |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5599 | } else { |
Fariborz Jahanian | c170852 | 2009-02-05 18:00:27 +0000 | [diff] [blame] | 5600 | #if 0 |
| 5601 | // unlike what is documented. gcc never generates this API!! |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5602 | if (Receiver->getType() == ObjCTypes.ObjectPtrTy) { |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 5603 | Fn = ObjCTypes.getMessageSendIdFixupFn(); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5604 | Name += "objc_msgSendId_fixup"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5605 | } else |
Fariborz Jahanian | c170852 | 2009-02-05 18:00:27 +0000 | [diff] [blame] | 5606 | #endif |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5607 | if (IsSuper) { |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 5608 | Fn = ObjCTypes.getMessageSendSuper2FixupFn(); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5609 | Name += "objc_msgSendSuper2_fixup"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5610 | } else { |
| 5611 | Fn = ObjCTypes.getMessageSendFixupFn(); |
| 5612 | Name += "objc_msgSend_fixup"; |
| 5613 | } |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5614 | } |
Fariborz Jahanian | 70b51c7 | 2009-04-30 23:08:58 +0000 | [diff] [blame] | 5615 | assert(Fn && "CGObjCNonFragileABIMac::EmitMessageSend"); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5616 | Name += '_'; |
| 5617 | std::string SelName(Sel.getAsString()); |
| 5618 | // Replace all ':' in selector name with '_' ouch! |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5619 | for (unsigned i = 0; i < SelName.size(); i++) |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5620 | if (SelName[i] == ':') |
| 5621 | SelName[i] = '_'; |
| 5622 | Name += SelName; |
| 5623 | llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name); |
| 5624 | if (!GV) { |
Daniel Dunbar | 33af70f | 2009-04-15 19:03:14 +0000 | [diff] [blame] | 5625 | // Build message ref table entry. |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5626 | std::vector<llvm::Constant*> Values(2); |
| 5627 | Values[0] = Fn; |
| 5628 | Values[1] = GetMethodVarName(Sel); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 5629 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5630 | GV = new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Mike Stump | 286acbd | 2009-03-07 16:33:28 +0000 | [diff] [blame] | 5631 | llvm::GlobalValue::WeakAnyLinkage, |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5632 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5633 | Name); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5634 | GV->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Daniel Dunbar | f59c1a6 | 2009-04-15 19:04:46 +0000 | [diff] [blame] | 5635 | GV->setAlignment(16); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5636 | GV->setSection("__DATA, __objc_msgrefs, coalesced"); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5637 | } |
| 5638 | llvm::Value *Arg1 = CGF.Builder.CreateBitCast(GV, ObjCTypes.MessageRefPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5639 | |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5640 | CallArgList ActualArgs; |
| 5641 | ActualArgs.push_back(std::make_pair(RValue::get(Arg0), Arg0Ty)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5642 | ActualArgs.push_back(std::make_pair(RValue::get(Arg1), |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5643 | ObjCTypes.MessageRefCPtrTy)); |
| 5644 | ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 5645 | const CGFunctionInfo &FnInfo1 = Types.getFunctionInfo(ResultType, ActualArgs, |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 5646 | FunctionType::ExtInfo()); |
Fariborz Jahanian | ef16378 | 2009-02-05 01:13:09 +0000 | [diff] [blame] | 5647 | llvm::Value *Callee = CGF.Builder.CreateStructGEP(Arg1, 0); |
| 5648 | Callee = CGF.Builder.CreateLoad(Callee); |
Fariborz Jahanian | 3ab75bd | 2009-02-14 21:25:36 +0000 | [diff] [blame] | 5649 | const llvm::FunctionType *FTy = Types.GetFunctionType(FnInfo1, true); |
Fariborz Jahanian | ef16378 | 2009-02-05 01:13:09 +0000 | [diff] [blame] | 5650 | Callee = CGF.Builder.CreateBitCast(Callee, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 5651 | llvm::PointerType::getUnqual(FTy)); |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 5652 | return CGF.EmitCall(FnInfo1, Callee, Return, ActualArgs); |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 5653 | } |
| 5654 | |
| 5655 | /// Generate code for a message send expression in the nonfragile abi. |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5656 | CodeGen::RValue |
| 5657 | CGObjCNonFragileABIMac::GenerateMessageSend(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 5658 | ReturnValueSlot Return, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5659 | QualType ResultType, |
| 5660 | Selector Sel, |
| 5661 | llvm::Value *Receiver, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5662 | const CallArgList &CallArgs, |
David Chisnall | c6cd5fd | 2010-04-28 19:33:36 +0000 | [diff] [blame] | 5663 | const ObjCInterfaceDecl *Class, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5664 | const ObjCMethodDecl *Method) { |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 5665 | return LegacyDispatchedSelector(Sel) |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 5666 | ? EmitLegacyMessageSend(CGF, Return, ResultType, |
| 5667 | EmitSelector(CGF.Builder, Sel), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5668 | Receiver, CGF.getContext().getObjCIdType(), |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5669 | false, CallArgs, Method, ObjCTypes) |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 5670 | : EmitMessageSend(CGF, Return, ResultType, Sel, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5671 | Receiver, CGF.getContext().getObjCIdType(), |
| 5672 | false, CallArgs); |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 5673 | } |
| 5674 | |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 5675 | llvm::GlobalVariable * |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 5676 | CGObjCNonFragileABIMac::GetClassGlobal(const std::string &Name) { |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 5677 | llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name); |
| 5678 | |
Daniel Dunbar | dfff230 | 2009-03-02 05:18:14 +0000 | [diff] [blame] | 5679 | if (!GV) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5680 | GV = new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassnfABITy, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5681 | false, llvm::GlobalValue::ExternalLinkage, |
| 5682 | 0, Name); |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 5683 | } |
| 5684 | |
| 5685 | return GV; |
| 5686 | } |
| 5687 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5688 | llvm::Value *CGObjCNonFragileABIMac::EmitClassRef(CGBuilderTy &Builder, |
| 5689 | const ObjCInterfaceDecl *ID) { |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5690 | llvm::GlobalVariable *&Entry = ClassReferences[ID->getIdentifier()]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5691 | |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5692 | if (!Entry) { |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 5693 | std::string ClassName(getClassSymbolPrefix() + ID->getNameAsString()); |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 5694 | llvm::GlobalVariable *ClassGV = GetClassGlobal(ClassName); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5695 | Entry = |
| 5696 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassnfABIPtrTy, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5697 | false, llvm::GlobalValue::InternalLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5698 | ClassGV, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5699 | "\01L_OBJC_CLASSLIST_REFERENCES_$_"); |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5700 | Entry->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 5701 | CGM.getTargetData().getABITypeAlignment( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5702 | ObjCTypes.ClassnfABIPtrTy)); |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5703 | Entry->setSection("__DATA, __objc_classrefs, regular, no_dead_strip"); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5704 | CGM.AddUsedGlobal(Entry); |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5705 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5706 | |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 5707 | return Builder.CreateLoad(Entry, "tmp"); |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5708 | } |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5709 | |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5710 | llvm::Value * |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5711 | CGObjCNonFragileABIMac::EmitSuperClassRef(CGBuilderTy &Builder, |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5712 | const ObjCInterfaceDecl *ID) { |
| 5713 | llvm::GlobalVariable *&Entry = SuperClassReferences[ID->getIdentifier()]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5714 | |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5715 | if (!Entry) { |
| 5716 | std::string ClassName(getClassSymbolPrefix() + ID->getNameAsString()); |
| 5717 | llvm::GlobalVariable *ClassGV = GetClassGlobal(ClassName); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5718 | Entry = |
| 5719 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassnfABIPtrTy, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5720 | false, llvm::GlobalValue::InternalLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5721 | ClassGV, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5722 | "\01L_OBJC_CLASSLIST_SUP_REFS_$_"); |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5723 | Entry->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 5724 | CGM.getTargetData().getABITypeAlignment( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5725 | ObjCTypes.ClassnfABIPtrTy)); |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5726 | Entry->setSection("__DATA, __objc_superrefs, regular, no_dead_strip"); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5727 | CGM.AddUsedGlobal(Entry); |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5728 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5729 | |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 5730 | return Builder.CreateLoad(Entry, "tmp"); |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5731 | } |
| 5732 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5733 | /// EmitMetaClassRef - Return a Value * of the address of _class_t |
| 5734 | /// meta-data |
| 5735 | /// |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5736 | llvm::Value *CGObjCNonFragileABIMac::EmitMetaClassRef(CGBuilderTy &Builder, |
| 5737 | const ObjCInterfaceDecl *ID) { |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5738 | llvm::GlobalVariable * &Entry = MetaClassReferences[ID->getIdentifier()]; |
| 5739 | if (Entry) |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 5740 | return Builder.CreateLoad(Entry, "tmp"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5741 | |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 5742 | std::string MetaClassName(getMetaclassSymbolPrefix() + ID->getNameAsString()); |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 5743 | llvm::GlobalVariable *MetaClassGV = GetClassGlobal(MetaClassName); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5744 | Entry = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5745 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassnfABIPtrTy, false, |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5746 | llvm::GlobalValue::InternalLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5747 | MetaClassGV, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5748 | "\01L_OBJC_CLASSLIST_SUP_REFS_$_"); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5749 | Entry->setAlignment( |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 5750 | CGM.getTargetData().getABITypeAlignment( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5751 | ObjCTypes.ClassnfABIPtrTy)); |
| 5752 | |
Daniel Dunbar | 33af70f | 2009-04-15 19:03:14 +0000 | [diff] [blame] | 5753 | Entry->setSection("__DATA, __objc_superrefs, regular, no_dead_strip"); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5754 | CGM.AddUsedGlobal(Entry); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5755 | |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 5756 | return Builder.CreateLoad(Entry, "tmp"); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5757 | } |
| 5758 | |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5759 | /// GetClass - Return a reference to the class for the given interface |
| 5760 | /// decl. |
| 5761 | llvm::Value *CGObjCNonFragileABIMac::GetClass(CGBuilderTy &Builder, |
| 5762 | const ObjCInterfaceDecl *ID) { |
Fariborz Jahanian | 269f8bc | 2009-11-17 22:42:00 +0000 | [diff] [blame] | 5763 | if (ID->hasAttr<WeakImportAttr>()) { |
| 5764 | std::string ClassName(getClassSymbolPrefix() + ID->getNameAsString()); |
| 5765 | llvm::GlobalVariable *ClassGV = GetClassGlobal(ClassName); |
| 5766 | ClassGV->setLinkage(llvm::GlobalValue::ExternalWeakLinkage); |
| 5767 | } |
| 5768 | |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5769 | return EmitClassRef(Builder, ID); |
| 5770 | } |
| 5771 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5772 | /// Generates a message send where the super is the receiver. This is |
| 5773 | /// a message send to self with special delivery semantics indicating |
| 5774 | /// which class's method should be called. |
| 5775 | CodeGen::RValue |
| 5776 | CGObjCNonFragileABIMac::GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 5777 | ReturnValueSlot Return, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5778 | QualType ResultType, |
| 5779 | Selector Sel, |
| 5780 | const ObjCInterfaceDecl *Class, |
| 5781 | bool isCategoryImpl, |
| 5782 | llvm::Value *Receiver, |
| 5783 | bool IsClassMessage, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5784 | const CodeGen::CallArgList &CallArgs, |
| 5785 | const ObjCMethodDecl *Method) { |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5786 | // ... |
| 5787 | // Create and init a super structure; this is a (receiver, class) |
| 5788 | // pair we will pass to objc_msgSendSuper. |
| 5789 | llvm::Value *ObjCSuper = |
| 5790 | CGF.Builder.CreateAlloca(ObjCTypes.SuperTy, 0, "objc_super"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5791 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5792 | llvm::Value *ReceiverAsObject = |
| 5793 | CGF.Builder.CreateBitCast(Receiver, ObjCTypes.ObjectPtrTy); |
| 5794 | CGF.Builder.CreateStore(ReceiverAsObject, |
| 5795 | CGF.Builder.CreateStructGEP(ObjCSuper, 0)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5796 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5797 | // If this is a class message the metaclass is passed as the target. |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 5798 | llvm::Value *Target; |
| 5799 | if (IsClassMessage) { |
| 5800 | if (isCategoryImpl) { |
| 5801 | // Message sent to "super' in a class method defined in |
| 5802 | // a category implementation. |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5803 | Target = EmitClassRef(CGF.Builder, Class); |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 5804 | Target = CGF.Builder.CreateStructGEP(Target, 0); |
| 5805 | Target = CGF.Builder.CreateLoad(Target); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5806 | } else |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 5807 | Target = EmitMetaClassRef(CGF.Builder, Class); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5808 | } else |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5809 | Target = EmitSuperClassRef(CGF.Builder, Class); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5810 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 5811 | // FIXME: We shouldn't need to do this cast, rectify the ASTContext and |
| 5812 | // ObjCTypes types. |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5813 | const llvm::Type *ClassTy = |
| 5814 | CGM.getTypes().ConvertType(CGF.getContext().getObjCClassType()); |
| 5815 | Target = CGF.Builder.CreateBitCast(Target, ClassTy); |
| 5816 | CGF.Builder.CreateStore(Target, |
| 5817 | CGF.Builder.CreateStructGEP(ObjCSuper, 1)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5818 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 5819 | return (LegacyDispatchedSelector(Sel)) |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 5820 | ? EmitLegacyMessageSend(CGF, Return, ResultType, |
| 5821 | EmitSelector(CGF.Builder, Sel), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5822 | ObjCSuper, ObjCTypes.SuperPtrCTy, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5823 | true, CallArgs, Method, ObjCTypes) |
John McCall | ef072fd | 2010-05-22 01:48:05 +0000 | [diff] [blame] | 5824 | : EmitMessageSend(CGF, Return, ResultType, Sel, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5825 | ObjCSuper, ObjCTypes.SuperPtrCTy, |
| 5826 | true, CallArgs); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5827 | } |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5828 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5829 | llvm::Value *CGObjCNonFragileABIMac::EmitSelector(CGBuilderTy &Builder, |
Fariborz Jahanian | 03b2960 | 2010-06-17 19:56:20 +0000 | [diff] [blame] | 5830 | Selector Sel, bool lval) { |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5831 | llvm::GlobalVariable *&Entry = SelectorReferences[Sel]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5832 | |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5833 | if (!Entry) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5834 | llvm::Constant *Casted = |
| 5835 | llvm::ConstantExpr::getBitCast(GetMethodVarName(Sel), |
| 5836 | ObjCTypes.SelectorPtrTy); |
| 5837 | Entry = |
| 5838 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.SelectorPtrTy, false, |
| 5839 | llvm::GlobalValue::InternalLinkage, |
| 5840 | Casted, "\01L_OBJC_SELECTOR_REFERENCES_"); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 5841 | Entry->setSection("__DATA, __objc_selrefs, literal_pointers, no_dead_strip"); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5842 | CGM.AddUsedGlobal(Entry); |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5843 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5844 | |
Fariborz Jahanian | 03b2960 | 2010-06-17 19:56:20 +0000 | [diff] [blame] | 5845 | if (lval) |
| 5846 | return Entry; |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 5847 | return Builder.CreateLoad(Entry, "tmp"); |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5848 | } |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5849 | /// EmitObjCIvarAssign - Code gen for assigning to a __strong object. |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 5850 | /// objc_assign_ivar (id src, id *dst, ptrdiff_t) |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5851 | /// |
| 5852 | void CGObjCNonFragileABIMac::EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5853 | llvm::Value *src, |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 5854 | llvm::Value *dst, |
| 5855 | llvm::Value *ivarOffset) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5856 | const llvm::Type * SrcTy = src->getType(); |
| 5857 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5858 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5859 | assert(Size <= 8 && "does not support size > 8"); |
| 5860 | src = (Size == 4 ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
| 5861 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongTy)); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 5862 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 5863 | } |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5864 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 5865 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 5866 | CGF.Builder.CreateCall3(ObjCTypes.getGcAssignIvarFn(), |
| 5867 | src, dst, ivarOffset); |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5868 | return; |
| 5869 | } |
| 5870 | |
| 5871 | /// EmitObjCStrongCastAssign - Code gen for assigning to a __strong cast object. |
| 5872 | /// objc_assign_strongCast (id src, id *dst) |
| 5873 | /// |
| 5874 | void CGObjCNonFragileABIMac::EmitObjCStrongCastAssign( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5875 | CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5876 | llvm::Value *src, llvm::Value *dst) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5877 | const llvm::Type * SrcTy = src->getType(); |
| 5878 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5879 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5880 | assert(Size <= 8 && "does not support size > 8"); |
| 5881 | src = (Size == 4 ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5882 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongTy)); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 5883 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 5884 | } |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5885 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 5886 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 5887 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignStrongCastFn(), |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5888 | src, dst, "weakassign"); |
| 5889 | return; |
| 5890 | } |
| 5891 | |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 5892 | void CGObjCNonFragileABIMac::EmitGCMemmoveCollectable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5893 | CodeGen::CodeGenFunction &CGF, |
| 5894 | llvm::Value *DestPtr, |
| 5895 | llvm::Value *SrcPtr, |
Fariborz Jahanian | 55bcace | 2010-06-15 22:44:06 +0000 | [diff] [blame] | 5896 | llvm::Value *Size) { |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 5897 | SrcPtr = CGF.Builder.CreateBitCast(SrcPtr, ObjCTypes.Int8PtrTy); |
| 5898 | DestPtr = CGF.Builder.CreateBitCast(DestPtr, ObjCTypes.Int8PtrTy); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 5899 | CGF.Builder.CreateCall3(ObjCTypes.GcMemmoveCollectableFn(), |
Fariborz Jahanian | 55bcace | 2010-06-15 22:44:06 +0000 | [diff] [blame] | 5900 | DestPtr, SrcPtr, Size); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 5901 | return; |
| 5902 | } |
| 5903 | |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5904 | /// EmitObjCWeakRead - Code gen for loading value of a __weak |
| 5905 | /// object: objc_read_weak (id *src) |
| 5906 | /// |
| 5907 | llvm::Value * CGObjCNonFragileABIMac::EmitObjCWeakRead( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5908 | CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5909 | llvm::Value *AddrWeakObj) { |
Eli Friedman | 8339b35 | 2009-03-07 03:57:15 +0000 | [diff] [blame] | 5910 | const llvm::Type* DestTy = |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5911 | cast<llvm::PointerType>(AddrWeakObj->getType())->getElementType(); |
| 5912 | AddrWeakObj = CGF.Builder.CreateBitCast(AddrWeakObj, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 5913 | llvm::Value *read_weak = CGF.Builder.CreateCall(ObjCTypes.getGcReadWeakFn(), |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5914 | AddrWeakObj, "weakread"); |
Eli Friedman | 8339b35 | 2009-03-07 03:57:15 +0000 | [diff] [blame] | 5915 | read_weak = CGF.Builder.CreateBitCast(read_weak, DestTy); |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5916 | return read_weak; |
| 5917 | } |
| 5918 | |
| 5919 | /// EmitObjCWeakAssign - Code gen for assigning to a __weak object. |
| 5920 | /// objc_assign_weak (id src, id *dst) |
| 5921 | /// |
| 5922 | void CGObjCNonFragileABIMac::EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5923 | llvm::Value *src, llvm::Value *dst) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5924 | const llvm::Type * SrcTy = src->getType(); |
| 5925 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5926 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5927 | assert(Size <= 8 && "does not support size > 8"); |
| 5928 | src = (Size == 4 ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
| 5929 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongTy)); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 5930 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 5931 | } |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5932 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 5933 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | 96508e1 | 2009-04-17 22:12:36 +0000 | [diff] [blame] | 5934 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignWeakFn(), |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5935 | src, dst, "weakassign"); |
| 5936 | return; |
| 5937 | } |
| 5938 | |
| 5939 | /// EmitObjCGlobalAssign - Code gen for assigning to a __strong object. |
| 5940 | /// objc_assign_global (id src, id *dst) |
| 5941 | /// |
| 5942 | void CGObjCNonFragileABIMac::EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 021a7a6 | 2010-07-20 20:30:03 +0000 | [diff] [blame] | 5943 | llvm::Value *src, llvm::Value *dst, |
| 5944 | bool threadlocal) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5945 | const llvm::Type * SrcTy = src->getType(); |
| 5946 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5947 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5948 | assert(Size <= 8 && "does not support size > 8"); |
| 5949 | src = (Size == 4 ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
| 5950 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongTy)); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 5951 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 5952 | } |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5953 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 5954 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Fariborz Jahanian | 021a7a6 | 2010-07-20 20:30:03 +0000 | [diff] [blame] | 5955 | if (!threadlocal) |
| 5956 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignGlobalFn(), |
| 5957 | src, dst, "globalassign"); |
| 5958 | else |
| 5959 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignThreadLocalFn(), |
| 5960 | src, dst, "threadlocalassign"); |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5961 | return; |
| 5962 | } |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5963 | |
John McCall | 740e807 | 2010-07-21 00:41:47 +0000 | [diff] [blame] | 5964 | namespace { |
John McCall | 1f0fca5 | 2010-07-21 07:22:38 +0000 | [diff] [blame] | 5965 | struct CallSyncExit : EHScopeStack::Cleanup { |
John McCall | 740e807 | 2010-07-21 00:41:47 +0000 | [diff] [blame] | 5966 | llvm::Value *SyncExitFn; |
| 5967 | llvm::Value *SyncArg; |
| 5968 | CallSyncExit(llvm::Value *SyncExitFn, llvm::Value *SyncArg) |
| 5969 | : SyncExitFn(SyncExitFn), SyncArg(SyncArg) {} |
| 5970 | |
| 5971 | void Emit(CodeGenFunction &CGF, bool IsForEHCleanup) { |
| 5972 | CGF.Builder.CreateCall(SyncExitFn, SyncArg)->setDoesNotThrow(); |
| 5973 | } |
| 5974 | }; |
| 5975 | } |
| 5976 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5977 | void |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 5978 | CGObjCNonFragileABIMac::EmitSynchronizedStmt(CodeGen::CodeGenFunction &CGF, |
| 5979 | const ObjCAtSynchronizedStmt &S) { |
| 5980 | // Evaluate the lock operand. This should dominate the cleanup. |
| 5981 | llvm::Value *SyncArg = CGF.EmitScalarExpr(S.getSynchExpr()); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5982 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 5983 | // Acquire the lock. |
| 5984 | SyncArg = CGF.Builder.CreateBitCast(SyncArg, ObjCTypes.ObjectPtrTy); |
| 5985 | CGF.Builder.CreateCall(ObjCTypes.getSyncEnterFn(), SyncArg) |
| 5986 | ->setDoesNotThrow(); |
| 5987 | |
| 5988 | // Register an all-paths cleanup to release the lock. |
John McCall | 1f0fca5 | 2010-07-21 07:22:38 +0000 | [diff] [blame] | 5989 | CGF.EHStack.pushCleanup<CallSyncExit>(NormalAndEHCleanup, |
| 5990 | ObjCTypes.getSyncExitFn(), |
| 5991 | SyncArg); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5992 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 5993 | // Emit the body of the statement. |
| 5994 | CGF.EmitStmt(S.getSynchBody()); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5995 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 5996 | // Pop the lock-release cleanup. |
| 5997 | CGF.PopCleanupBlock(); |
| 5998 | } |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5999 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6000 | namespace { |
| 6001 | struct CatchHandler { |
| 6002 | const VarDecl *Variable; |
| 6003 | const Stmt *Body; |
| 6004 | llvm::BasicBlock *Block; |
| 6005 | llvm::Value *TypeInfo; |
| 6006 | }; |
John McCall | 8e3f861 | 2010-07-13 22:12:14 +0000 | [diff] [blame] | 6007 | |
John McCall | 1f0fca5 | 2010-07-21 07:22:38 +0000 | [diff] [blame] | 6008 | struct CallObjCEndCatch : EHScopeStack::Cleanup { |
John McCall | 8e3f861 | 2010-07-13 22:12:14 +0000 | [diff] [blame] | 6009 | CallObjCEndCatch(bool MightThrow, llvm::Value *Fn) : |
| 6010 | MightThrow(MightThrow), Fn(Fn) {} |
| 6011 | bool MightThrow; |
| 6012 | llvm::Value *Fn; |
| 6013 | |
| 6014 | void Emit(CodeGenFunction &CGF, bool IsForEH) { |
| 6015 | if (!MightThrow) { |
| 6016 | CGF.Builder.CreateCall(Fn)->setDoesNotThrow(); |
| 6017 | return; |
| 6018 | } |
| 6019 | |
| 6020 | CGF.EmitCallOrInvoke(Fn, 0, 0); |
| 6021 | } |
| 6022 | }; |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6023 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6024 | |
John McCall | 5a18039 | 2010-07-24 00:37:23 +0000 | [diff] [blame] | 6025 | llvm::Constant * |
| 6026 | CGObjCNonFragileABIMac::GetEHType(QualType T) { |
| 6027 | // There's a particular fixed type info for 'id'. |
| 6028 | if (T->isObjCIdType() || |
| 6029 | T->isObjCQualifiedIdType()) { |
| 6030 | llvm::Constant *IDEHType = |
| 6031 | CGM.getModule().getGlobalVariable("OBJC_EHTYPE_id"); |
| 6032 | if (!IDEHType) |
| 6033 | IDEHType = |
| 6034 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.EHTypeTy, |
| 6035 | false, |
| 6036 | llvm::GlobalValue::ExternalLinkage, |
| 6037 | 0, "OBJC_EHTYPE_id"); |
| 6038 | return IDEHType; |
| 6039 | } |
| 6040 | |
| 6041 | // All other types should be Objective-C interface pointer types. |
| 6042 | const ObjCObjectPointerType *PT = |
| 6043 | T->getAs<ObjCObjectPointerType>(); |
| 6044 | assert(PT && "Invalid @catch type."); |
| 6045 | const ObjCInterfaceType *IT = PT->getInterfaceType(); |
| 6046 | assert(IT && "Invalid @catch type."); |
| 6047 | return GetInterfaceEHType(IT->getDecl(), false); |
| 6048 | } |
| 6049 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6050 | void CGObjCNonFragileABIMac::EmitTryStmt(CodeGen::CodeGenFunction &CGF, |
| 6051 | const ObjCAtTryStmt &S) { |
| 6052 | // Jump destination for falling out of catch bodies. |
| 6053 | CodeGenFunction::JumpDest Cont; |
| 6054 | if (S.getNumCatchStmts()) |
| 6055 | Cont = CGF.getJumpDestInCurrentScope("eh.cont"); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6056 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6057 | CodeGenFunction::FinallyInfo FinallyInfo; |
| 6058 | if (const ObjCAtFinallyStmt *Finally = S.getFinallyStmt()) |
| 6059 | FinallyInfo = CGF.EnterFinallyBlock(Finally->getFinallyBody(), |
| 6060 | ObjCTypes.getObjCBeginCatchFn(), |
| 6061 | ObjCTypes.getObjCEndCatchFn(), |
| 6062 | ObjCTypes.getExceptionRethrowFn()); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6063 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6064 | llvm::SmallVector<CatchHandler, 8> Handlers; |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6065 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6066 | // Enter the catch, if there is one. |
| 6067 | if (S.getNumCatchStmts()) { |
| 6068 | for (unsigned I = 0, N = S.getNumCatchStmts(); I != N; ++I) { |
| 6069 | const ObjCAtCatchStmt *CatchStmt = S.getCatchStmt(I); |
Douglas Gregor | c00d8e1 | 2010-04-26 16:46:50 +0000 | [diff] [blame] | 6070 | const VarDecl *CatchDecl = CatchStmt->getCatchParamDecl(); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6071 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6072 | Handlers.push_back(CatchHandler()); |
| 6073 | CatchHandler &Handler = Handlers.back(); |
| 6074 | Handler.Variable = CatchDecl; |
| 6075 | Handler.Body = CatchStmt->getCatchBody(); |
| 6076 | Handler.Block = CGF.createBasicBlock("catch"); |
| 6077 | |
| 6078 | // @catch(...) always matches. |
Douglas Gregor | 8f5e3dd | 2010-04-23 22:50:49 +0000 | [diff] [blame] | 6079 | if (!CatchDecl) { |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6080 | Handler.TypeInfo = 0; // catch-all |
| 6081 | // Don't consider any other catches. |
Douglas Gregor | 8f5e3dd | 2010-04-23 22:50:49 +0000 | [diff] [blame] | 6082 | break; |
| 6083 | } |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6084 | |
John McCall | 5a18039 | 2010-07-24 00:37:23 +0000 | [diff] [blame] | 6085 | Handler.TypeInfo = GetEHType(CatchDecl->getType()); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6086 | } |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6087 | |
| 6088 | EHCatchScope *Catch = CGF.EHStack.pushCatch(Handlers.size()); |
| 6089 | for (unsigned I = 0, E = Handlers.size(); I != E; ++I) |
| 6090 | Catch->setHandler(I, Handlers[I].TypeInfo, Handlers[I].Block); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6091 | } |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6092 | |
| 6093 | // Emit the try body. |
| 6094 | CGF.EmitStmt(S.getTryBody()); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6095 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6096 | // Leave the try. |
| 6097 | if (S.getNumCatchStmts()) |
| 6098 | CGF.EHStack.popCatch(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6099 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6100 | // Remember where we were. |
| 6101 | CGBuilderTy::InsertPoint SavedIP = CGF.Builder.saveAndClearIP(); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6102 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6103 | // Emit the handlers. |
| 6104 | for (unsigned I = 0, E = Handlers.size(); I != E; ++I) { |
| 6105 | CatchHandler &Handler = Handlers[I]; |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6106 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6107 | CGF.EmitBlock(Handler.Block); |
| 6108 | llvm::Value *RawExn = CGF.Builder.CreateLoad(CGF.getExceptionSlot()); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6109 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6110 | // Enter the catch. |
| 6111 | llvm::CallInst *Exn = |
| 6112 | CGF.Builder.CreateCall(ObjCTypes.getObjCBeginCatchFn(), RawExn, |
| 6113 | "exn.adjusted"); |
| 6114 | Exn->setDoesNotThrow(); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6115 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6116 | // Add a cleanup to leave the catch. |
John McCall | 8e3f861 | 2010-07-13 22:12:14 +0000 | [diff] [blame] | 6117 | bool EndCatchMightThrow = (Handler.Variable == 0); |
John McCall | 1f0fca5 | 2010-07-21 07:22:38 +0000 | [diff] [blame] | 6118 | CGF.EHStack.pushCleanup<CallObjCEndCatch>(NormalAndEHCleanup, |
| 6119 | EndCatchMightThrow, |
| 6120 | ObjCTypes.getObjCEndCatchFn()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6121 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6122 | // Bind the catch parameter if it exists. |
| 6123 | if (const VarDecl *CatchParam = Handler.Variable) { |
| 6124 | const llvm::Type *CatchType = CGF.ConvertType(CatchParam->getType()); |
| 6125 | llvm::Value *CastExn = CGF.Builder.CreateBitCast(Exn, CatchType); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6126 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6127 | CGF.EmitLocalBlockVarDecl(*CatchParam); |
| 6128 | CGF.Builder.CreateStore(CastExn, CGF.GetAddrOfLocalVar(CatchParam)); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6129 | } |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6130 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6131 | CGF.ObjCEHValueStack.push_back(Exn); |
| 6132 | CGF.EmitStmt(Handler.Body); |
| 6133 | CGF.ObjCEHValueStack.pop_back(); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 6134 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6135 | // Leave the earlier cleanup. |
| 6136 | CGF.PopCleanupBlock(); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 6137 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6138 | CGF.EmitBranchThroughCleanup(Cont); |
| 6139 | } |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 6140 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6141 | // Go back to the try-statement fallthrough. |
| 6142 | CGF.Builder.restoreIP(SavedIP); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 6143 | |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6144 | // Pop out of the normal cleanup on the finally. |
| 6145 | if (S.getFinallyStmt()) |
| 6146 | CGF.ExitFinallyBlock(FinallyInfo); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 6147 | |
John McCall | ff8e115 | 2010-07-23 21:56:41 +0000 | [diff] [blame] | 6148 | if (Cont.isValid()) |
| 6149 | CGF.EmitBlock(Cont.getBlock()); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 6150 | } |
| 6151 | |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 6152 | /// EmitThrowStmt - Generate code for a throw statement. |
| 6153 | void CGObjCNonFragileABIMac::EmitThrowStmt(CodeGen::CodeGenFunction &CGF, |
| 6154 | const ObjCAtThrowStmt &S) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6155 | llvm::Value *Exception; |
Fariborz Jahanian | 69677ea | 2010-05-28 17:34:43 +0000 | [diff] [blame] | 6156 | llvm::Constant *FunctionThrowOrRethrow; |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 6157 | if (const Expr *ThrowExpr = S.getThrowExpr()) { |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6158 | Exception = CGF.EmitScalarExpr(ThrowExpr); |
Fariborz Jahanian | 69677ea | 2010-05-28 17:34:43 +0000 | [diff] [blame] | 6159 | FunctionThrowOrRethrow = ObjCTypes.getExceptionThrowFn(); |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 6160 | } else { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6161 | assert((!CGF.ObjCEHValueStack.empty() && CGF.ObjCEHValueStack.back()) && |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6162 | "Unexpected rethrow outside @catch block."); |
| 6163 | Exception = CGF.ObjCEHValueStack.back(); |
Fariborz Jahanian | 69677ea | 2010-05-28 17:34:43 +0000 | [diff] [blame] | 6164 | FunctionThrowOrRethrow = ObjCTypes.getExceptionRethrowFn(); |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 6165 | } |
| 6166 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6167 | llvm::Value *ExceptionAsObject = |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6168 | CGF.Builder.CreateBitCast(Exception, ObjCTypes.ObjectPtrTy, "tmp"); |
| 6169 | llvm::BasicBlock *InvokeDest = CGF.getInvokeDest(); |
| 6170 | if (InvokeDest) { |
Fariborz Jahanian | 69677ea | 2010-05-28 17:34:43 +0000 | [diff] [blame] | 6171 | CGF.Builder.CreateInvoke(FunctionThrowOrRethrow, |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6172 | CGF.getUnreachableBlock(), InvokeDest, |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6173 | &ExceptionAsObject, &ExceptionAsObject + 1); |
John McCall | f1549f6 | 2010-07-06 01:34:17 +0000 | [diff] [blame] | 6174 | } else { |
| 6175 | CGF.Builder.CreateCall(FunctionThrowOrRethrow, ExceptionAsObject) |
| 6176 | ->setDoesNotReturn(); |
| 6177 | CGF.Builder.CreateUnreachable(); |
| 6178 | } |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 6179 | |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 6180 | // Clear the insertion point to indicate we are in unreachable code. |
| 6181 | CGF.Builder.ClearInsertionPoint(); |
| 6182 | } |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6183 | |
John McCall | 5a18039 | 2010-07-24 00:37:23 +0000 | [diff] [blame] | 6184 | llvm::Constant * |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6185 | CGObjCNonFragileABIMac::GetInterfaceEHType(const ObjCInterfaceDecl *ID, |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 6186 | bool ForDefinition) { |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6187 | llvm::GlobalVariable * &Entry = EHTypeReferences[ID->getIdentifier()]; |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6188 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 6189 | // If we don't need a definition, return the entry if found or check |
| 6190 | // if we use an external reference. |
| 6191 | if (!ForDefinition) { |
| 6192 | if (Entry) |
| 6193 | return Entry; |
Daniel Dunbar | 7e075cb | 2009-04-07 06:43:45 +0000 | [diff] [blame] | 6194 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 6195 | // If this type (or a super class) has the __objc_exception__ |
| 6196 | // attribute, emit an external reference. |
Douglas Gregor | 68584ed | 2009-06-18 16:11:24 +0000 | [diff] [blame] | 6197 | if (hasObjCExceptionAttribute(CGM.getContext(), ID)) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6198 | return Entry = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 6199 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.EHTypeTy, false, |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 6200 | llvm::GlobalValue::ExternalLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6201 | 0, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 6202 | ("OBJC_EHTYPE_$_" + |
Daniel Dunbar | 01eb9b9 | 2009-10-18 21:17:35 +0000 | [diff] [blame] | 6203 | ID->getIdentifier()->getName())); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 6204 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6205 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 6206 | // Otherwise we need to either make a new entry or fill in the |
| 6207 | // initializer. |
| 6208 | assert((!Entry || !Entry->hasInitializer()) && "Duplicate EHType definition"); |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 6209 | std::string ClassName(getClassSymbolPrefix() + ID->getNameAsString()); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6210 | std::string VTableName = "objc_ehtype_vtable"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6211 | llvm::GlobalVariable *VTableGV = |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6212 | CGM.getModule().getGlobalVariable(VTableName); |
| 6213 | if (!VTableGV) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6214 | VTableGV = new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.Int8PtrTy, |
| 6215 | false, |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6216 | llvm::GlobalValue::ExternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 6217 | 0, VTableName); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6218 | |
Chris Lattner | 77b89b8 | 2010-06-27 07:15:29 +0000 | [diff] [blame] | 6219 | llvm::Value *VTableIdx = |
| 6220 | llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext), 2); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6221 | |
| 6222 | std::vector<llvm::Constant*> Values(3); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 6223 | Values[0] = llvm::ConstantExpr::getGetElementPtr(VTableGV, &VTableIdx, 1); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6224 | Values[1] = GetClassName(ID->getIdentifier()); |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 6225 | Values[2] = GetClassGlobal(ClassName); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 6226 | llvm::Constant *Init = |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 6227 | llvm::ConstantStruct::get(ObjCTypes.EHTypeTy, Values); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6228 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 6229 | if (Entry) { |
| 6230 | Entry->setInitializer(Init); |
| 6231 | } else { |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 6232 | Entry = new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.EHTypeTy, false, |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 6233 | llvm::GlobalValue::WeakAnyLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6234 | Init, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 6235 | ("OBJC_EHTYPE_$_" + |
Daniel Dunbar | 01eb9b9 | 2009-10-18 21:17:35 +0000 | [diff] [blame] | 6236 | ID->getIdentifier()->getName())); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 6237 | } |
| 6238 | |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 6239 | if (CGM.getLangOptions().getVisibilityMode() == LangOptions::Hidden) |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 6240 | Entry->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Daniel Dunbar | 4b429ae | 2010-04-25 20:39:32 +0000 | [diff] [blame] | 6241 | Entry->setAlignment(CGM.getTargetData().getABITypeAlignment( |
| 6242 | ObjCTypes.EHTypeTy)); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 6243 | |
| 6244 | if (ForDefinition) { |
| 6245 | Entry->setSection("__DATA,__objc_const"); |
| 6246 | Entry->setLinkage(llvm::GlobalValue::ExternalLinkage); |
| 6247 | } else { |
| 6248 | Entry->setSection("__DATA,__datacoal_nt,coalesced"); |
| 6249 | } |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 6250 | |
| 6251 | return Entry; |
| 6252 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 6253 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 6254 | /* *** */ |
| 6255 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 6256 | CodeGen::CGObjCRuntime * |
| 6257 | CodeGen::CreateMacObjCRuntime(CodeGen::CodeGenModule &CGM) { |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 6258 | return new CGObjCMac(CGM); |
| 6259 | } |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 6260 | |
| 6261 | CodeGen::CGObjCRuntime * |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 6262 | CodeGen::CreateMacNonFragileABIObjCRuntime(CodeGen::CodeGenModule &CGM) { |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 6263 | return new CGObjCNonFragileABIMac(CGM); |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 6264 | } |