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 | |
| 16 | #include "CodeGenModule.h" |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 17 | #include "CodeGenFunction.h" |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 18 | #include "clang/AST/ASTContext.h" |
Daniel Dunbar | e91593e | 2008-08-11 04:54:23 +0000 | [diff] [blame] | 19 | #include "clang/AST/Decl.h" |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 20 | #include "clang/AST/DeclObjC.h" |
Anders Carlsson | 19cc4ab | 2009-07-18 19:43:29 +0000 | [diff] [blame] | 21 | #include "clang/AST/RecordLayout.h" |
Chris Lattner | 16f0049 | 2009-04-26 01:32:48 +0000 | [diff] [blame] | 22 | #include "clang/AST/StmtObjC.h" |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 23 | #include "clang/Basic/LangOptions.h" |
| 24 | |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 25 | #include "llvm/Intrinsics.h" |
Owen Anderson | 6924382 | 2009-07-13 04:10:07 +0000 | [diff] [blame] | 26 | #include "llvm/LLVMContext.h" |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 27 | #include "llvm/Module.h" |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 28 | #include "llvm/ADT/DenseSet.h" |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 29 | #include "llvm/ADT/SetVector.h" |
| 30 | #include "llvm/ADT/SmallString.h" |
| 31 | #include "llvm/Support/raw_ostream.h" |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 32 | #include "llvm/Target/TargetData.h" |
Torok Edwin | f42e4a6 | 2009-08-24 13:25:12 +0000 | [diff] [blame] | 33 | #include <cstdio> |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 34 | |
| 35 | using namespace clang; |
Daniel Dunbar | 46f45b9 | 2008-09-09 01:06:48 +0000 | [diff] [blame] | 36 | using namespace CodeGen; |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 37 | |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 38 | // Common CGObjCRuntime functions, these don't belong here, but they |
| 39 | // don't belong in CGObjCRuntime either so we will live with it for |
| 40 | // now. |
| 41 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 42 | /// FindIvarInterface - Find the interface containing the ivar. |
Daniel Dunbar | a243578 | 2009-04-22 12:00:04 +0000 | [diff] [blame] | 43 | /// |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 44 | /// FIXME: We shouldn't need to do this, the containing context should |
| 45 | /// be fixed. |
| 46 | static const ObjCInterfaceDecl *FindIvarInterface(ASTContext &Context, |
| 47 | const ObjCInterfaceDecl *OID, |
| 48 | const ObjCIvarDecl *OIVD, |
| 49 | unsigned &Index) { |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 50 | // FIXME: The index here is closely tied to how |
| 51 | // ASTContext::getObjCLayout is implemented. This should be fixed to |
| 52 | // get the information from the layout directly. |
| 53 | Index = 0; |
Fariborz Jahanian | 9820074 | 2009-05-12 18:14:29 +0000 | [diff] [blame] | 54 | llvm::SmallVector<ObjCIvarDecl*, 16> Ivars; |
Fariborz Jahanian | 8e6ac1d | 2009-06-04 01:19:09 +0000 | [diff] [blame] | 55 | Context.ShallowCollectObjCIvars(OID, Ivars); |
Fariborz Jahanian | 9820074 | 2009-05-12 18:14:29 +0000 | [diff] [blame] | 56 | for (unsigned k = 0, e = Ivars.size(); k != e; ++k) { |
| 57 | if (OIVD == Ivars[k]) |
| 58 | return OID; |
| 59 | ++Index; |
Daniel Dunbar | a80a0f6 | 2009-04-22 17:43:55 +0000 | [diff] [blame] | 60 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 61 | |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 62 | // Otherwise check in the super class. |
Daniel Dunbar | a81419d | 2009-05-05 00:36:57 +0000 | [diff] [blame] | 63 | if (const ObjCInterfaceDecl *Super = OID->getSuperClass()) |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 64 | return FindIvarInterface(Context, Super, OIVD, Index); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 65 | |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 66 | return 0; |
Daniel Dunbar | a243578 | 2009-04-22 12:00:04 +0000 | [diff] [blame] | 67 | } |
| 68 | |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 69 | static uint64_t LookupFieldBitOffset(CodeGen::CodeGenModule &CGM, |
| 70 | const ObjCInterfaceDecl *OID, |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 71 | const ObjCImplementationDecl *ID, |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 72 | const ObjCIvarDecl *Ivar) { |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 73 | unsigned Index; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 74 | const ObjCInterfaceDecl *Container = |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 75 | FindIvarInterface(CGM.getContext(), OID, Ivar, Index); |
| 76 | assert(Container && "Unable to find ivar container"); |
| 77 | |
| 78 | // If we know have an implementation (and the ivar is in it) then |
| 79 | // look up in the implementation layout. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 80 | const ASTRecordLayout *RL; |
Daniel Dunbar | 532d4da | 2009-05-03 13:15:50 +0000 | [diff] [blame] | 81 | if (ID && ID->getClassInterface() == Container) |
| 82 | RL = &CGM.getContext().getASTObjCImplementationLayout(ID); |
| 83 | else |
| 84 | RL = &CGM.getContext().getASTObjCInterfaceLayout(Container); |
| 85 | return RL->getFieldOffset(Index); |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | uint64_t CGObjCRuntime::ComputeIvarBaseOffset(CodeGen::CodeGenModule &CGM, |
| 89 | const ObjCInterfaceDecl *OID, |
| 90 | const ObjCIvarDecl *Ivar) { |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 91 | return LookupFieldBitOffset(CGM, OID, 0, Ivar) / 8; |
| 92 | } |
| 93 | |
| 94 | uint64_t CGObjCRuntime::ComputeIvarBaseOffset(CodeGen::CodeGenModule &CGM, |
| 95 | const ObjCImplementationDecl *OID, |
| 96 | const ObjCIvarDecl *Ivar) { |
| 97 | return LookupFieldBitOffset(CGM, OID->getClassInterface(), OID, Ivar) / 8; |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 98 | } |
| 99 | |
| 100 | LValue CGObjCRuntime::EmitValueForIvarAtOffset(CodeGen::CodeGenFunction &CGF, |
| 101 | const ObjCInterfaceDecl *OID, |
| 102 | llvm::Value *BaseValue, |
| 103 | const ObjCIvarDecl *Ivar, |
| 104 | unsigned CVRQualifiers, |
| 105 | llvm::Value *Offset) { |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 106 | // Compute (type*) ( (char *) BaseValue + Offset) |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 107 | const llvm::Type *I8Ptr = llvm::Type::getInt8PtrTy(CGF.getLLVMContext()); |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 108 | QualType IvarTy = Ivar->getType(); |
| 109 | const llvm::Type *LTy = CGF.CGM.getTypes().ConvertTypeForMem(IvarTy); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 110 | llvm::Value *V = CGF.Builder.CreateBitCast(BaseValue, I8Ptr); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 111 | V = CGF.Builder.CreateGEP(V, Offset, "add.ptr"); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 112 | V = CGF.Builder.CreateBitCast(V, llvm::PointerType::getUnqual(LTy)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 113 | |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 114 | Qualifiers Quals = CGF.MakeQualifiers(IvarTy); |
| 115 | Quals.addCVRQualifiers(CVRQualifiers); |
| 116 | |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 117 | if (Ivar->isBitField()) { |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 118 | // We need to compute the bit offset for the bit-field, the offset |
| 119 | // is to the byte. Note, there is a subtle invariant here: we can |
| 120 | // only call this routine on non-sythesized ivars but we may be |
| 121 | // called for synthesized ivars. However, a synthesized ivar can |
| 122 | // never be a bit-field so this is safe. |
| 123 | uint64_t BitOffset = LookupFieldBitOffset(CGF.CGM, OID, 0, Ivar) % 8; |
| 124 | |
Daniel Dunbar | 1d7e539 | 2009-05-03 08:55:17 +0000 | [diff] [blame] | 125 | uint64_t BitFieldSize = |
| 126 | Ivar->getBitWidth()->EvaluateAsInt(CGF.getContext()).getZExtValue(); |
| 127 | return LValue::MakeBitfield(V, BitOffset, BitFieldSize, |
Daniel Dunbar | e38df86 | 2009-05-03 07:52:00 +0000 | [diff] [blame] | 128 | IvarTy->isSignedIntegerType(), |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 129 | Quals.getCVRQualifiers()); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 130 | } |
| 131 | |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 132 | |
| 133 | LValue LV = LValue::MakeAddr(V, Quals); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 134 | return LV; |
| 135 | } |
| 136 | |
| 137 | /// |
| 138 | |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 139 | namespace { |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 140 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 141 | typedef std::vector<llvm::Constant*> ConstantVector; |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 142 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 143 | // FIXME: We should find a nicer way to make the labels for metadata, string |
| 144 | // concatenation is lame. |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 145 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 146 | class ObjCCommonTypesHelper { |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 147 | protected: |
| 148 | llvm::LLVMContext &VMContext; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 149 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 150 | private: |
| 151 | llvm::Constant *getMessageSendFn() const { |
| 152 | // id objc_msgSend (id, SEL, ...) |
| 153 | std::vector<const llvm::Type*> Params; |
| 154 | Params.push_back(ObjectPtrTy); |
| 155 | Params.push_back(SelectorPtrTy); |
| 156 | return |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 157 | CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
| 158 | Params, true), |
| 159 | "objc_msgSend"); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 160 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 161 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 162 | llvm::Constant *getMessageSendStretFn() const { |
| 163 | // id objc_msgSend_stret (id, SEL, ...) |
| 164 | std::vector<const llvm::Type*> Params; |
| 165 | Params.push_back(ObjectPtrTy); |
| 166 | Params.push_back(SelectorPtrTy); |
| 167 | return |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 168 | CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 169 | Params, true), |
| 170 | "objc_msgSend_stret"); |
| 171 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 172 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 173 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 174 | llvm::Constant *getMessageSendFpretFn() const { |
| 175 | // FIXME: This should be long double on x86_64? |
| 176 | // [double | long double] objc_msgSend_fpret(id self, SEL op, ...) |
| 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( |
| 182 | llvm::Type::getDoubleTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 183 | Params, |
| 184 | true), |
| 185 | "objc_msgSend_fpret"); |
| 186 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 187 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 188 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 189 | llvm::Constant *getMessageSendSuperFn() const { |
| 190 | // id objc_msgSendSuper(struct objc_super *super, SEL op, ...) |
| 191 | const char *SuperName = "objc_msgSendSuper"; |
| 192 | std::vector<const llvm::Type*> Params; |
| 193 | Params.push_back(SuperPtrTy); |
| 194 | Params.push_back(SelectorPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 195 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 196 | Params, true), |
| 197 | SuperName); |
| 198 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 199 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 200 | llvm::Constant *getMessageSendSuperFn2() const { |
| 201 | // id objc_msgSendSuper2(struct objc_super *super, SEL op, ...) |
| 202 | const char *SuperName = "objc_msgSendSuper2"; |
| 203 | std::vector<const llvm::Type*> Params; |
| 204 | Params.push_back(SuperPtrTy); |
| 205 | Params.push_back(SelectorPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 206 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 207 | Params, true), |
| 208 | SuperName); |
| 209 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 210 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 211 | llvm::Constant *getMessageSendSuperStretFn() const { |
| 212 | // void objc_msgSendSuper_stret(void * stretAddr, struct objc_super *super, |
| 213 | // SEL op, ...) |
| 214 | std::vector<const llvm::Type*> Params; |
| 215 | Params.push_back(Int8PtrTy); |
| 216 | Params.push_back(SuperPtrTy); |
| 217 | Params.push_back(SelectorPtrTy); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 218 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 219 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 220 | Params, true), |
| 221 | "objc_msgSendSuper_stret"); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 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 *getMessageSendSuperStretFn2() const { |
| 225 | // void objc_msgSendSuper2_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_msgSendSuper2_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 *getMessageSendSuperFpretFn() const { |
| 238 | // There is no objc_msgSendSuper_fpret? How can that work? |
| 239 | return getMessageSendSuperFn(); |
| 240 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 241 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 242 | llvm::Constant *getMessageSendSuperFpretFn2() const { |
| 243 | // There is no objc_msgSendSuper_fpret? How can that work? |
| 244 | return getMessageSendSuperFn2(); |
| 245 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 246 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 247 | protected: |
| 248 | CodeGen::CodeGenModule &CGM; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 249 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 250 | public: |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 251 | const llvm::Type *ShortTy, *IntTy, *LongTy, *LongLongTy; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 252 | const llvm::Type *Int8PtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 253 | |
Daniel Dunbar | 2bedbf8 | 2008-08-12 05:28:47 +0000 | [diff] [blame] | 254 | /// ObjectPtrTy - LLVM type for object handles (typeof(id)) |
| 255 | const llvm::Type *ObjectPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 256 | |
Fariborz Jahanian | 6d657c4 | 2008-11-18 20:18:11 +0000 | [diff] [blame] | 257 | /// PtrObjectPtrTy - LLVM type for id * |
| 258 | const llvm::Type *PtrObjectPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 259 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 260 | /// SelectorPtrTy - LLVM type for selector handles (typeof(SEL)) |
Daniel Dunbar | 2bedbf8 | 2008-08-12 05:28:47 +0000 | [diff] [blame] | 261 | const llvm::Type *SelectorPtrTy; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 262 | /// ProtocolPtrTy - LLVM type for external protocol handles |
| 263 | /// (typeof(Protocol)) |
| 264 | const llvm::Type *ExternalProtocolPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 265 | |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 266 | // SuperCTy - clang type for struct objc_super. |
| 267 | QualType SuperCTy; |
| 268 | // SuperPtrCTy - clang type for struct objc_super *. |
| 269 | QualType SuperPtrCTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 270 | |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 271 | /// SuperTy - LLVM type for struct objc_super. |
| 272 | const llvm::StructType *SuperTy; |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 273 | /// SuperPtrTy - LLVM type for struct objc_super *. |
| 274 | const llvm::Type *SuperPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 275 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 276 | /// PropertyTy - LLVM type for struct objc_property (struct _prop_t |
| 277 | /// in GCC parlance). |
| 278 | const llvm::StructType *PropertyTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 279 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 280 | /// PropertyListTy - LLVM type for struct objc_property_list |
| 281 | /// (_prop_list_t in GCC parlance). |
| 282 | const llvm::StructType *PropertyListTy; |
| 283 | /// PropertyListPtrTy - LLVM type for struct objc_property_list*. |
| 284 | const llvm::Type *PropertyListPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 285 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 286 | // MethodTy - LLVM type for struct objc_method. |
| 287 | const llvm::StructType *MethodTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 288 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 289 | /// CacheTy - LLVM type for struct objc_cache. |
| 290 | const llvm::Type *CacheTy; |
| 291 | /// CachePtrTy - LLVM type for struct objc_cache *. |
| 292 | const llvm::Type *CachePtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 293 | |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 294 | llvm::Constant *getGetPropertyFn() { |
| 295 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 296 | ASTContext &Ctx = CGM.getContext(); |
| 297 | // id objc_getProperty (id, SEL, ptrdiff_t, bool) |
| 298 | llvm::SmallVector<QualType,16> Params; |
| 299 | QualType IdType = Ctx.getObjCIdType(); |
| 300 | QualType SelType = Ctx.getObjCSelType(); |
| 301 | Params.push_back(IdType); |
| 302 | Params.push_back(SelType); |
| 303 | Params.push_back(Ctx.LongTy); |
| 304 | Params.push_back(Ctx.BoolTy); |
| 305 | const llvm::FunctionType *FTy = |
| 306 | Types.GetFunctionType(Types.getFunctionInfo(IdType, Params), false); |
| 307 | return CGM.CreateRuntimeFunction(FTy, "objc_getProperty"); |
| 308 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 309 | |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 310 | llvm::Constant *getSetPropertyFn() { |
| 311 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 312 | ASTContext &Ctx = CGM.getContext(); |
| 313 | // void objc_setProperty (id, SEL, ptrdiff_t, id, bool, bool) |
| 314 | llvm::SmallVector<QualType,16> Params; |
| 315 | QualType IdType = Ctx.getObjCIdType(); |
| 316 | QualType SelType = Ctx.getObjCSelType(); |
| 317 | Params.push_back(IdType); |
| 318 | Params.push_back(SelType); |
| 319 | Params.push_back(Ctx.LongTy); |
| 320 | Params.push_back(IdType); |
| 321 | Params.push_back(Ctx.BoolTy); |
| 322 | Params.push_back(Ctx.BoolTy); |
| 323 | const llvm::FunctionType *FTy = |
| 324 | Types.GetFunctionType(Types.getFunctionInfo(Ctx.VoidTy, Params), false); |
| 325 | return CGM.CreateRuntimeFunction(FTy, "objc_setProperty"); |
| 326 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 327 | |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 328 | llvm::Constant *getEnumerationMutationFn() { |
Daniel Dunbar | c1ab900 | 2009-07-11 20:32:50 +0000 | [diff] [blame] | 329 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 330 | ASTContext &Ctx = CGM.getContext(); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 331 | // void objc_enumerationMutation (id) |
Daniel Dunbar | c1ab900 | 2009-07-11 20:32:50 +0000 | [diff] [blame] | 332 | llvm::SmallVector<QualType,16> Params; |
Daniel Dunbar | 309a436 | 2009-07-24 07:40:24 +0000 | [diff] [blame] | 333 | Params.push_back(Ctx.getObjCIdType()); |
Daniel Dunbar | c1ab900 | 2009-07-11 20:32:50 +0000 | [diff] [blame] | 334 | const llvm::FunctionType *FTy = |
| 335 | Types.GetFunctionType(Types.getFunctionInfo(Ctx.VoidTy, Params), false); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 336 | return CGM.CreateRuntimeFunction(FTy, "objc_enumerationMutation"); |
| 337 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 338 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 339 | /// GcReadWeakFn -- LLVM objc_read_weak (id *src) function. |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 340 | llvm::Constant *getGcReadWeakFn() { |
| 341 | // id objc_read_weak (id *) |
| 342 | std::vector<const llvm::Type*> Args; |
| 343 | Args.push_back(ObjectPtrTy->getPointerTo()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 344 | llvm::FunctionType *FTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 345 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 346 | return CGM.CreateRuntimeFunction(FTy, "objc_read_weak"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 347 | } |
| 348 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 349 | /// GcAssignWeakFn -- LLVM objc_assign_weak function. |
Chris Lattner | 96508e1 | 2009-04-17 22:12:36 +0000 | [diff] [blame] | 350 | llvm::Constant *getGcAssignWeakFn() { |
| 351 | // id objc_assign_weak (id, id *) |
| 352 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 353 | Args.push_back(ObjectPtrTy->getPointerTo()); |
| 354 | llvm::FunctionType *FTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 355 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
Chris Lattner | 96508e1 | 2009-04-17 22:12:36 +0000 | [diff] [blame] | 356 | return CGM.CreateRuntimeFunction(FTy, "objc_assign_weak"); |
| 357 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 358 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 359 | /// GcAssignGlobalFn -- LLVM objc_assign_global function. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 360 | llvm::Constant *getGcAssignGlobalFn() { |
| 361 | // id objc_assign_global(id, id *) |
| 362 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 363 | Args.push_back(ObjectPtrTy->getPointerTo()); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 364 | llvm::FunctionType *FTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 365 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 366 | return CGM.CreateRuntimeFunction(FTy, "objc_assign_global"); |
| 367 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 368 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 369 | /// GcAssignIvarFn -- LLVM objc_assign_ivar function. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 370 | llvm::Constant *getGcAssignIvarFn() { |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 371 | // id objc_assign_ivar(id, id *, ptrdiff_t) |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 372 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 373 | Args.push_back(ObjectPtrTy->getPointerTo()); |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 374 | Args.push_back(LongTy); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 375 | llvm::FunctionType *FTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 376 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 377 | return CGM.CreateRuntimeFunction(FTy, "objc_assign_ivar"); |
| 378 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 379 | |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 380 | /// GcMemmoveCollectableFn -- LLVM objc_memmove_collectable function. |
| 381 | llvm::Constant *GcMemmoveCollectableFn() { |
| 382 | // void *objc_memmove_collectable(void *dst, const void *src, size_t size) |
| 383 | std::vector<const llvm::Type*> Args(1, Int8PtrTy); |
| 384 | Args.push_back(Int8PtrTy); |
| 385 | Args.push_back(LongTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 386 | llvm::FunctionType *FTy = llvm::FunctionType::get(Int8PtrTy, Args, false); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 387 | return CGM.CreateRuntimeFunction(FTy, "objc_memmove_collectable"); |
| 388 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 389 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 390 | /// GcAssignStrongCastFn -- LLVM objc_assign_strongCast function. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 391 | llvm::Constant *getGcAssignStrongCastFn() { |
| 392 | // id objc_assign_global(id, id *) |
| 393 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 394 | Args.push_back(ObjectPtrTy->getPointerTo()); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 395 | llvm::FunctionType *FTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 396 | llvm::FunctionType::get(ObjectPtrTy, Args, false); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 397 | return CGM.CreateRuntimeFunction(FTy, "objc_assign_strongCast"); |
| 398 | } |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 399 | |
| 400 | /// ExceptionThrowFn - LLVM objc_exception_throw function. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 401 | llvm::Constant *getExceptionThrowFn() { |
| 402 | // void objc_exception_throw(id) |
| 403 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 404 | llvm::FunctionType *FTy = |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 405 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), Args, false); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 406 | return CGM.CreateRuntimeFunction(FTy, "objc_exception_throw"); |
| 407 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 408 | |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 409 | /// SyncEnterFn - LLVM object_sync_enter function. |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 410 | llvm::Constant *getSyncEnterFn() { |
| 411 | // void objc_sync_enter (id) |
| 412 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 413 | llvm::FunctionType *FTy = |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 414 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), Args, false); |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 415 | return CGM.CreateRuntimeFunction(FTy, "objc_sync_enter"); |
| 416 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 417 | |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 418 | /// SyncExitFn - LLVM object_sync_exit function. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 419 | llvm::Constant *getSyncExitFn() { |
| 420 | // void objc_sync_exit (id) |
| 421 | std::vector<const llvm::Type*> Args(1, ObjectPtrTy); |
| 422 | llvm::FunctionType *FTy = |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 423 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), Args, false); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 424 | return CGM.CreateRuntimeFunction(FTy, "objc_sync_exit"); |
| 425 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 426 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 427 | llvm::Constant *getSendFn(bool IsSuper) const { |
| 428 | return IsSuper ? getMessageSendSuperFn() : getMessageSendFn(); |
| 429 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 430 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 431 | llvm::Constant *getSendFn2(bool IsSuper) const { |
| 432 | return IsSuper ? getMessageSendSuperFn2() : getMessageSendFn(); |
| 433 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 434 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 435 | llvm::Constant *getSendStretFn(bool IsSuper) const { |
| 436 | return IsSuper ? getMessageSendSuperStretFn() : getMessageSendStretFn(); |
| 437 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 438 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 439 | llvm::Constant *getSendStretFn2(bool IsSuper) const { |
| 440 | return IsSuper ? getMessageSendSuperStretFn2() : getMessageSendStretFn(); |
| 441 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 442 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 443 | llvm::Constant *getSendFpretFn(bool IsSuper) const { |
| 444 | return IsSuper ? getMessageSendSuperFpretFn() : getMessageSendFpretFn(); |
| 445 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 446 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 447 | llvm::Constant *getSendFpretFn2(bool IsSuper) const { |
| 448 | return IsSuper ? getMessageSendSuperFpretFn2() : getMessageSendFpretFn(); |
| 449 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 450 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 451 | ObjCCommonTypesHelper(CodeGen::CodeGenModule &cgm); |
| 452 | ~ObjCCommonTypesHelper(){} |
| 453 | }; |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 454 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 455 | /// ObjCTypesHelper - Helper class that encapsulates lazy |
| 456 | /// construction of varies types used during ObjC generation. |
| 457 | class ObjCTypesHelper : public ObjCCommonTypesHelper { |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 458 | public: |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 459 | /// SymtabTy - LLVM type for struct objc_symtab. |
| 460 | const llvm::StructType *SymtabTy; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 461 | /// SymtabPtrTy - LLVM type for struct objc_symtab *. |
| 462 | const llvm::Type *SymtabPtrTy; |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 463 | /// ModuleTy - LLVM type for struct objc_module. |
| 464 | const llvm::StructType *ModuleTy; |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 465 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 466 | /// ProtocolTy - LLVM type for struct objc_protocol. |
| 467 | const llvm::StructType *ProtocolTy; |
| 468 | /// ProtocolPtrTy - LLVM type for struct objc_protocol *. |
| 469 | const llvm::Type *ProtocolPtrTy; |
| 470 | /// ProtocolExtensionTy - LLVM type for struct |
| 471 | /// objc_protocol_extension. |
| 472 | const llvm::StructType *ProtocolExtensionTy; |
| 473 | /// ProtocolExtensionTy - LLVM type for struct |
| 474 | /// objc_protocol_extension *. |
| 475 | const llvm::Type *ProtocolExtensionPtrTy; |
| 476 | /// MethodDescriptionTy - LLVM type for struct |
| 477 | /// objc_method_description. |
| 478 | const llvm::StructType *MethodDescriptionTy; |
| 479 | /// MethodDescriptionListTy - LLVM type for struct |
| 480 | /// objc_method_description_list. |
| 481 | const llvm::StructType *MethodDescriptionListTy; |
| 482 | /// MethodDescriptionListPtrTy - LLVM type for struct |
| 483 | /// objc_method_description_list *. |
| 484 | const llvm::Type *MethodDescriptionListPtrTy; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 485 | /// ProtocolListTy - LLVM type for struct objc_property_list. |
| 486 | const llvm::Type *ProtocolListTy; |
| 487 | /// ProtocolListPtrTy - LLVM type for struct objc_property_list*. |
| 488 | const llvm::Type *ProtocolListPtrTy; |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 489 | /// CategoryTy - LLVM type for struct objc_category. |
| 490 | const llvm::StructType *CategoryTy; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 491 | /// ClassTy - LLVM type for struct objc_class. |
| 492 | const llvm::StructType *ClassTy; |
| 493 | /// ClassPtrTy - LLVM type for struct objc_class *. |
| 494 | const llvm::Type *ClassPtrTy; |
| 495 | /// ClassExtensionTy - LLVM type for struct objc_class_ext. |
| 496 | const llvm::StructType *ClassExtensionTy; |
| 497 | /// ClassExtensionPtrTy - LLVM type for struct objc_class_ext *. |
| 498 | const llvm::Type *ClassExtensionPtrTy; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 499 | // IvarTy - LLVM type for struct objc_ivar. |
| 500 | const llvm::StructType *IvarTy; |
| 501 | /// IvarListTy - LLVM type for struct objc_ivar_list. |
| 502 | const llvm::Type *IvarListTy; |
| 503 | /// IvarListPtrTy - LLVM type for struct objc_ivar_list *. |
| 504 | const llvm::Type *IvarListPtrTy; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 505 | /// MethodListTy - LLVM type for struct objc_method_list. |
| 506 | const llvm::Type *MethodListTy; |
| 507 | /// MethodListPtrTy - LLVM type for struct objc_method_list *. |
| 508 | const llvm::Type *MethodListPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 509 | |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 510 | /// ExceptionDataTy - LLVM type for struct _objc_exception_data. |
| 511 | const llvm::Type *ExceptionDataTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 512 | |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 513 | /// ExceptionTryEnterFn - LLVM objc_exception_try_enter function. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 514 | llvm::Constant *getExceptionTryEnterFn() { |
| 515 | std::vector<const llvm::Type*> Params; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 516 | Params.push_back(llvm::PointerType::getUnqual(ExceptionDataTy)); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 517 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 518 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 519 | Params, false), |
| 520 | "objc_exception_try_enter"); |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 521 | } |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 522 | |
| 523 | /// ExceptionTryExitFn - LLVM objc_exception_try_exit function. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 524 | llvm::Constant *getExceptionTryExitFn() { |
| 525 | std::vector<const llvm::Type*> Params; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 526 | Params.push_back(llvm::PointerType::getUnqual(ExceptionDataTy)); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 527 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 528 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 529 | Params, false), |
| 530 | "objc_exception_try_exit"); |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 531 | } |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 532 | |
| 533 | /// ExceptionExtractFn - LLVM objc_exception_extract function. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 534 | llvm::Constant *getExceptionExtractFn() { |
| 535 | std::vector<const llvm::Type*> Params; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 536 | Params.push_back(llvm::PointerType::getUnqual(ExceptionDataTy)); |
| 537 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 538 | Params, false), |
| 539 | "objc_exception_extract"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 540 | |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 541 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 542 | |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 543 | /// ExceptionMatchFn - LLVM objc_exception_match function. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 544 | llvm::Constant *getExceptionMatchFn() { |
| 545 | std::vector<const llvm::Type*> Params; |
| 546 | Params.push_back(ClassPtrTy); |
| 547 | Params.push_back(ObjectPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 548 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 549 | llvm::FunctionType::get(llvm::Type::getInt32Ty(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 550 | Params, false), |
| 551 | "objc_exception_match"); |
| 552 | |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 553 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 554 | |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 555 | /// SetJmpFn - LLVM _setjmp function. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 556 | llvm::Constant *getSetJmpFn() { |
| 557 | std::vector<const llvm::Type*> Params; |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 558 | Params.push_back(llvm::Type::getInt32PtrTy(VMContext)); |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 559 | return |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 560 | CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::getInt32Ty(VMContext), |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 561 | Params, false), |
| 562 | "_setjmp"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 563 | |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 564 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 565 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 566 | public: |
| 567 | ObjCTypesHelper(CodeGen::CodeGenModule &cgm); |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 568 | ~ObjCTypesHelper() {} |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 569 | }; |
| 570 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 571 | /// ObjCNonFragileABITypesHelper - will have all types needed by objective-c's |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 572 | /// modern abi |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 573 | class ObjCNonFragileABITypesHelper : public ObjCCommonTypesHelper { |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 574 | public: |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 575 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 576 | // MethodListnfABITy - LLVM for struct _method_list_t |
| 577 | const llvm::StructType *MethodListnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 578 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 579 | // MethodListnfABIPtrTy - LLVM for struct _method_list_t* |
| 580 | const llvm::Type *MethodListnfABIPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 581 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 582 | // ProtocolnfABITy = LLVM for struct _protocol_t |
| 583 | const llvm::StructType *ProtocolnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 584 | |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 585 | // ProtocolnfABIPtrTy = LLVM for struct _protocol_t* |
| 586 | const llvm::Type *ProtocolnfABIPtrTy; |
| 587 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 588 | // ProtocolListnfABITy - LLVM for struct _objc_protocol_list |
| 589 | const llvm::StructType *ProtocolListnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 590 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 591 | // ProtocolListnfABIPtrTy - LLVM for struct _objc_protocol_list* |
| 592 | const llvm::Type *ProtocolListnfABIPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 593 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 594 | // ClassnfABITy - LLVM for struct _class_t |
| 595 | const llvm::StructType *ClassnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 596 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 597 | // ClassnfABIPtrTy - LLVM for struct _class_t* |
| 598 | const llvm::Type *ClassnfABIPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 599 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 600 | // IvarnfABITy - LLVM for struct _ivar_t |
| 601 | const llvm::StructType *IvarnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 602 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 603 | // IvarListnfABITy - LLVM for struct _ivar_list_t |
| 604 | const llvm::StructType *IvarListnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 605 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 606 | // IvarListnfABIPtrTy = LLVM for struct _ivar_list_t* |
| 607 | const llvm::Type *IvarListnfABIPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 608 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 609 | // ClassRonfABITy - LLVM for struct _class_ro_t |
| 610 | const llvm::StructType *ClassRonfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 611 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 612 | // ImpnfABITy - LLVM for id (*)(id, SEL, ...) |
| 613 | const llvm::Type *ImpnfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 614 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 615 | // CategorynfABITy - LLVM for struct _category_t |
| 616 | const llvm::StructType *CategorynfABITy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 617 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 618 | // New types for nonfragile abi messaging. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 619 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 620 | // MessageRefTy - LLVM for: |
| 621 | // struct _message_ref_t { |
| 622 | // IMP messenger; |
| 623 | // SEL name; |
| 624 | // }; |
| 625 | const llvm::StructType *MessageRefTy; |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 626 | // MessageRefCTy - clang type for struct _message_ref_t |
| 627 | QualType MessageRefCTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 628 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 629 | // MessageRefPtrTy - LLVM for struct _message_ref_t* |
| 630 | const llvm::Type *MessageRefPtrTy; |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 631 | // MessageRefCPtrTy - clang type for struct _message_ref_t* |
| 632 | QualType MessageRefCPtrTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 633 | |
Fariborz Jahanian | ef16378 | 2009-02-05 01:13:09 +0000 | [diff] [blame] | 634 | // MessengerTy - Type of the messenger (shown as IMP above) |
| 635 | const llvm::FunctionType *MessengerTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 636 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 637 | // SuperMessageRefTy - LLVM for: |
| 638 | // struct _super_message_ref_t { |
| 639 | // SUPER_IMP messenger; |
| 640 | // SEL name; |
| 641 | // }; |
| 642 | const llvm::StructType *SuperMessageRefTy; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 643 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 644 | // SuperMessageRefPtrTy - LLVM for struct _super_message_ref_t* |
| 645 | const llvm::Type *SuperMessageRefPtrTy; |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 646 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 647 | llvm::Constant *getMessageSendFixupFn() { |
| 648 | // id objc_msgSend_fixup(id, struct message_ref_t*, ...) |
| 649 | std::vector<const llvm::Type*> Params; |
| 650 | Params.push_back(ObjectPtrTy); |
| 651 | Params.push_back(MessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 652 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 653 | Params, true), |
| 654 | "objc_msgSend_fixup"); |
| 655 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 656 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 657 | llvm::Constant *getMessageSendFpretFixupFn() { |
| 658 | // id objc_msgSend_fpret_fixup(id, struct message_ref_t*, ...) |
| 659 | std::vector<const llvm::Type*> Params; |
| 660 | Params.push_back(ObjectPtrTy); |
| 661 | Params.push_back(MessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 662 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 663 | Params, true), |
| 664 | "objc_msgSend_fpret_fixup"); |
| 665 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 666 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 667 | llvm::Constant *getMessageSendStretFixupFn() { |
| 668 | // id objc_msgSend_stret_fixup(id, struct message_ref_t*, ...) |
| 669 | std::vector<const llvm::Type*> Params; |
| 670 | Params.push_back(ObjectPtrTy); |
| 671 | Params.push_back(MessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 672 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 673 | Params, true), |
| 674 | "objc_msgSend_stret_fixup"); |
| 675 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 676 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 677 | llvm::Constant *getMessageSendIdFixupFn() { |
| 678 | // id objc_msgSendId_fixup(id, struct message_ref_t*, ...) |
| 679 | std::vector<const llvm::Type*> Params; |
| 680 | Params.push_back(ObjectPtrTy); |
| 681 | Params.push_back(MessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 682 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 683 | Params, true), |
| 684 | "objc_msgSendId_fixup"); |
| 685 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 686 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 687 | llvm::Constant *getMessageSendIdStretFixupFn() { |
| 688 | // id objc_msgSendId_stret_fixup(id, struct message_ref_t*, ...) |
| 689 | std::vector<const llvm::Type*> Params; |
| 690 | Params.push_back(ObjectPtrTy); |
| 691 | Params.push_back(MessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 692 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 693 | Params, true), |
| 694 | "objc_msgSendId_stret_fixup"); |
| 695 | } |
| 696 | llvm::Constant *getMessageSendSuper2FixupFn() { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 697 | // id objc_msgSendSuper2_fixup (struct objc_super *, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 698 | // struct _super_message_ref_t*, ...) |
| 699 | std::vector<const llvm::Type*> Params; |
| 700 | Params.push_back(SuperPtrTy); |
| 701 | Params.push_back(SuperMessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 702 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 703 | Params, true), |
| 704 | "objc_msgSendSuper2_fixup"); |
| 705 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 706 | |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 707 | llvm::Constant *getMessageSendSuper2StretFixupFn() { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 708 | // id objc_msgSendSuper2_stret_fixup(struct objc_super *, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 709 | // struct _super_message_ref_t*, ...) |
| 710 | std::vector<const llvm::Type*> Params; |
| 711 | Params.push_back(SuperPtrTy); |
| 712 | Params.push_back(SuperMessageRefPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 713 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(ObjectPtrTy, |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 714 | Params, true), |
| 715 | "objc_msgSendSuper2_stret_fixup"); |
| 716 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 717 | |
| 718 | |
| 719 | |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 720 | /// EHPersonalityPtr - LLVM value for an i8* to the Objective-C |
| 721 | /// exception personality function. |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 722 | llvm::Value *getEHPersonalityPtr() { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 723 | llvm::Constant *Personality = |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 724 | CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::getInt32Ty(VMContext), |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 725 | true), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 726 | "__objc_personality_v0"); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 727 | return llvm::ConstantExpr::getBitCast(Personality, Int8PtrTy); |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 728 | } |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 729 | |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 730 | llvm::Constant *getUnwindResumeOrRethrowFn() { |
| 731 | std::vector<const llvm::Type*> Params; |
| 732 | Params.push_back(Int8PtrTy); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 733 | return CGM.CreateRuntimeFunction( |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 734 | llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 735 | Params, false), |
| 736 | "_Unwind_Resume_or_Rethrow"); |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 737 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 738 | |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 739 | llvm::Constant *getObjCEndCatchFn() { |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 740 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(llvm::Type::getVoidTy(VMContext), |
Chris Lattner | b59761b | 2009-07-01 04:13:52 +0000 | [diff] [blame] | 741 | false), |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 742 | "objc_end_catch"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 743 | |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 744 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 745 | |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 746 | llvm::Constant *getObjCBeginCatchFn() { |
| 747 | std::vector<const llvm::Type*> Params; |
| 748 | Params.push_back(Int8PtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 749 | return CGM.CreateRuntimeFunction(llvm::FunctionType::get(Int8PtrTy, |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 750 | Params, false), |
| 751 | "objc_begin_catch"); |
| 752 | } |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 753 | |
| 754 | const llvm::StructType *EHTypeTy; |
| 755 | const llvm::Type *EHTypePtrTy; |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 756 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 757 | ObjCNonFragileABITypesHelper(CodeGen::CodeGenModule &cgm); |
| 758 | ~ObjCNonFragileABITypesHelper(){} |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 759 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 760 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 761 | class CGObjCCommonMac : public CodeGen::CGObjCRuntime { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 762 | public: |
| 763 | // FIXME - accessibility |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 764 | class GC_IVAR { |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 765 | public: |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 766 | unsigned ivar_bytepos; |
| 767 | unsigned ivar_size; |
| 768 | GC_IVAR(unsigned bytepos = 0, unsigned size = 0) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 769 | : ivar_bytepos(bytepos), ivar_size(size) {} |
Daniel Dunbar | 0941b49 | 2009-04-23 01:29:05 +0000 | [diff] [blame] | 770 | |
| 771 | // Allow sorting based on byte pos. |
| 772 | bool operator<(const GC_IVAR &b) const { |
| 773 | return ivar_bytepos < b.ivar_bytepos; |
| 774 | } |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 775 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 776 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 777 | class SKIP_SCAN { |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 778 | public: |
| 779 | unsigned skip; |
| 780 | unsigned scan; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 781 | SKIP_SCAN(unsigned _skip = 0, unsigned _scan = 0) |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 782 | : skip(_skip), scan(_scan) {} |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 783 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 784 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 785 | protected: |
| 786 | CodeGen::CodeGenModule &CGM; |
Owen Anderson | 6924382 | 2009-07-13 04:10:07 +0000 | [diff] [blame] | 787 | llvm::LLVMContext &VMContext; |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 788 | // FIXME! May not be needing this after all. |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 789 | unsigned ObjCABI; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 790 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 791 | // gc ivar layout bitmap calculation helper caches. |
| 792 | llvm::SmallVector<GC_IVAR, 16> SkipIvars; |
| 793 | llvm::SmallVector<GC_IVAR, 16> IvarsInfo; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 794 | |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 795 | /// LazySymbols - Symbols to generate a lazy reference for. See |
| 796 | /// DefinedSymbols and FinishModule(). |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 797 | llvm::SetVector<IdentifierInfo*> LazySymbols; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 798 | |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 799 | /// DefinedSymbols - External symbols which are defined by this |
| 800 | /// module. The symbols in this list and LazySymbols are used to add |
| 801 | /// special linker symbols which ensure that Objective-C modules are |
| 802 | /// linked properly. |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 803 | llvm::SetVector<IdentifierInfo*> DefinedSymbols; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 804 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 805 | /// ClassNames - uniqued class names. |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 806 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> ClassNames; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 807 | |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 808 | /// MethodVarNames - uniqued method variable names. |
| 809 | llvm::DenseMap<Selector, llvm::GlobalVariable*> MethodVarNames; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 810 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 811 | /// MethodVarTypes - uniqued method type signatures. We have to use |
| 812 | /// a StringMap here because have no other unique reference. |
| 813 | llvm::StringMap<llvm::GlobalVariable*> MethodVarTypes; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 814 | |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 815 | /// MethodDefinitions - map of methods which have been defined in |
| 816 | /// this translation unit. |
| 817 | llvm::DenseMap<const ObjCMethodDecl*, llvm::Function*> MethodDefinitions; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 818 | |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 819 | /// PropertyNames - uniqued method variable names. |
| 820 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> PropertyNames; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 821 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 822 | /// ClassReferences - uniqued class references. |
| 823 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> ClassReferences; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 824 | |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 825 | /// SelectorReferences - uniqued selector references. |
| 826 | llvm::DenseMap<Selector, llvm::GlobalVariable*> SelectorReferences; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 827 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 828 | /// Protocols - Protocols for which an objc_protocol structure has |
| 829 | /// been emitted. Forward declarations are handled by creating an |
| 830 | /// empty structure whose initializer is filled in when/if defined. |
| 831 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> Protocols; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 832 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 833 | /// DefinedProtocols - Protocols which have actually been |
| 834 | /// defined. We should not need this, see FIXME in GenerateProtocol. |
| 835 | llvm::DenseSet<IdentifierInfo*> DefinedProtocols; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 836 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 837 | /// DefinedClasses - List of defined classes. |
| 838 | std::vector<llvm::GlobalValue*> DefinedClasses; |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 839 | |
| 840 | /// DefinedNonLazyClasses - List of defined "non-lazy" classes. |
| 841 | std::vector<llvm::GlobalValue*> DefinedNonLazyClasses; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 842 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 843 | /// DefinedCategories - List of defined categories. |
| 844 | std::vector<llvm::GlobalValue*> DefinedCategories; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 845 | |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 846 | /// DefinedNonLazyCategories - List of defined "non-lazy" categories. |
| 847 | std::vector<llvm::GlobalValue*> DefinedNonLazyCategories; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 848 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 849 | /// GetNameForMethod - Return a name for the given method. |
| 850 | /// \param[out] NameOut - The return value. |
| 851 | void GetNameForMethod(const ObjCMethodDecl *OMD, |
| 852 | const ObjCContainerDecl *CD, |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 853 | llvm::SmallVectorImpl<char> &NameOut); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 854 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 855 | /// GetMethodVarName - Return a unique constant for the given |
| 856 | /// selector's name. The return value has type char *. |
| 857 | llvm::Constant *GetMethodVarName(Selector Sel); |
| 858 | llvm::Constant *GetMethodVarName(IdentifierInfo *Ident); |
| 859 | llvm::Constant *GetMethodVarName(const std::string &Name); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 860 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 861 | /// GetMethodVarType - Return a unique constant for the given |
| 862 | /// selector's name. The return value has type char *. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 863 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 864 | // FIXME: This is a horrible name. |
| 865 | llvm::Constant *GetMethodVarType(const ObjCMethodDecl *D); |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 866 | llvm::Constant *GetMethodVarType(const FieldDecl *D); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 867 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 868 | /// GetPropertyName - Return a unique constant for the given |
| 869 | /// name. The return value has type char *. |
| 870 | llvm::Constant *GetPropertyName(IdentifierInfo *Ident); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 871 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 872 | // FIXME: This can be dropped once string functions are unified. |
| 873 | llvm::Constant *GetPropertyTypeString(const ObjCPropertyDecl *PD, |
| 874 | const Decl *Container); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 875 | |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 876 | /// GetClassName - Return a unique constant for the given selector's |
| 877 | /// name. The return value has type char *. |
| 878 | llvm::Constant *GetClassName(IdentifierInfo *Ident); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 879 | |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 880 | /// BuildIvarLayout - Builds ivar layout bitmap for the class |
| 881 | /// implementation for the __strong or __weak case. |
| 882 | /// |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 883 | llvm::Constant *BuildIvarLayout(const ObjCImplementationDecl *OI, |
| 884 | bool ForStrongLayout); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 885 | |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 886 | void BuildAggrIvarRecordLayout(const RecordType *RT, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 887 | unsigned int BytePos, bool ForStrongLayout, |
| 888 | bool &HasUnion); |
Daniel Dunbar | 5a5a803 | 2009-05-03 21:05:10 +0000 | [diff] [blame] | 889 | void BuildAggrIvarLayout(const ObjCImplementationDecl *OI, |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 890 | const llvm::StructLayout *Layout, |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 891 | const RecordDecl *RD, |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 892 | const llvm::SmallVectorImpl<FieldDecl*> &RecFields, |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 893 | unsigned int BytePos, bool ForStrongLayout, |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 894 | bool &HasUnion); |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 895 | |
Fariborz Jahanian | d80d81b | 2009-03-05 19:17:31 +0000 | [diff] [blame] | 896 | /// GetIvarLayoutName - Returns a unique constant for the given |
| 897 | /// ivar layout bitmap. |
| 898 | llvm::Constant *GetIvarLayoutName(IdentifierInfo *Ident, |
| 899 | const ObjCCommonTypesHelper &ObjCTypes); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 900 | |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 901 | /// EmitPropertyList - Emit the given property list. The return |
| 902 | /// value has type PropertyListPtrTy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 903 | llvm::Constant *EmitPropertyList(llvm::Twine Name, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 904 | const Decl *Container, |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 905 | const ObjCContainerDecl *OCD, |
| 906 | const ObjCCommonTypesHelper &ObjCTypes); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 907 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 908 | /// GetProtocolRef - Return a reference to the internal protocol |
| 909 | /// description, creating an empty one if it has not been |
| 910 | /// defined. The return value has type ProtocolPtrTy. |
| 911 | llvm::Constant *GetProtocolRef(const ObjCProtocolDecl *PD); |
Fariborz Jahanian | b21f07e | 2009-03-08 20:18:37 +0000 | [diff] [blame] | 912 | |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 913 | /// CreateMetadataVar - Create a global variable with internal |
| 914 | /// linkage for use by the Objective-C runtime. |
| 915 | /// |
| 916 | /// This is a convenience wrapper which not only creates the |
| 917 | /// variable, but also sets the section and alignment and adds the |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 918 | /// global to the "llvm.used" list. |
Daniel Dunbar | 35bd763 | 2009-03-09 20:50:13 +0000 | [diff] [blame] | 919 | /// |
| 920 | /// \param Name - The variable name. |
| 921 | /// \param Init - The variable initializer; this is also used to |
| 922 | /// define the type of the variable. |
| 923 | /// \param Section - The section the variable should go into, or 0. |
| 924 | /// \param Align - The alignment for the variable, or 0. |
| 925 | /// \param AddToUsed - Whether the variable should be added to |
Daniel Dunbar | c158306 | 2009-04-14 17:42:51 +0000 | [diff] [blame] | 926 | /// "llvm.used". |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 927 | llvm::GlobalVariable *CreateMetadataVar(llvm::Twine Name, |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 928 | llvm::Constant *Init, |
| 929 | const char *Section, |
Daniel Dunbar | 35bd763 | 2009-03-09 20:50:13 +0000 | [diff] [blame] | 930 | unsigned Align, |
| 931 | bool AddToUsed); |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 932 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 933 | CodeGen::RValue EmitLegacyMessageSend(CodeGen::CodeGenFunction &CGF, |
| 934 | QualType ResultType, |
| 935 | llvm::Value *Sel, |
| 936 | llvm::Value *Arg0, |
| 937 | QualType Arg0Ty, |
| 938 | bool IsSuper, |
| 939 | const CallArgList &CallArgs, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 940 | const ObjCMethodDecl *OMD, |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 941 | const ObjCCommonTypesHelper &ObjCTypes); |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 942 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 943 | public: |
Owen Anderson | 6924382 | 2009-07-13 04:10:07 +0000 | [diff] [blame] | 944 | CGObjCCommonMac(CodeGen::CodeGenModule &cgm) : |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 945 | CGM(cgm), VMContext(cgm.getLLVMContext()) { } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 946 | |
Steve Naroff | 33fdb73 | 2009-03-31 16:53:37 +0000 | [diff] [blame] | 947 | virtual llvm::Constant *GenerateConstantString(const ObjCStringLiteral *SL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 948 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 949 | virtual llvm::Function *GenerateMethod(const ObjCMethodDecl *OMD, |
| 950 | const ObjCContainerDecl *CD=0); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 951 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 952 | virtual void GenerateProtocol(const ObjCProtocolDecl *PD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 953 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 954 | /// GetOrEmitProtocol - Get the protocol object for the given |
| 955 | /// declaration, emitting it if necessary. The return value has type |
| 956 | /// ProtocolPtrTy. |
| 957 | virtual llvm::Constant *GetOrEmitProtocol(const ObjCProtocolDecl *PD)=0; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 958 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 959 | /// GetOrEmitProtocolRef - Get a forward reference to the protocol |
| 960 | /// object for the given declaration, emitting it if needed. These |
| 961 | /// forward references will be filled in with empty bodies if no |
| 962 | /// definition is seen. The return value has type ProtocolPtrTy. |
| 963 | virtual llvm::Constant *GetOrEmitProtocolRef(const ObjCProtocolDecl *PD)=0; |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 964 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 965 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 966 | class CGObjCMac : public CGObjCCommonMac { |
| 967 | private: |
| 968 | ObjCTypesHelper ObjCTypes; |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 969 | /// EmitImageInfo - Emit the image info marker used to encode some module |
| 970 | /// level information. |
| 971 | void EmitImageInfo(); |
| 972 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 973 | /// EmitModuleInfo - Another marker encoding module level |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 974 | /// information. |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 975 | void EmitModuleInfo(); |
| 976 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 977 | /// EmitModuleSymols - Emit module symbols, the list of defined |
| 978 | /// classes and categories. The result has type SymtabPtrTy. |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 979 | llvm::Constant *EmitModuleSymbols(); |
| 980 | |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 981 | /// FinishModule - Write out global data structures at the end of |
| 982 | /// processing a translation unit. |
| 983 | void FinishModule(); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 984 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 985 | /// EmitClassExtension - Generate the class extension structure used |
| 986 | /// to store the weak ivar layout and properties. The return value |
| 987 | /// has type ClassExtensionPtrTy. |
| 988 | llvm::Constant *EmitClassExtension(const ObjCImplementationDecl *ID); |
| 989 | |
| 990 | /// EmitClassRef - Return a Value*, of type ObjCTypes.ClassPtrTy, |
| 991 | /// for the given class. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 992 | llvm::Value *EmitClassRef(CGBuilderTy &Builder, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 993 | const ObjCInterfaceDecl *ID); |
Fariborz Jahanian | b0069ee | 2009-11-12 20:14:24 +0000 | [diff] [blame^] | 994 | |
| 995 | /// EmitSuperClassRef - Emits reference to class's main metadata class. |
| 996 | llvm::Value *EmitSuperClassRef(const ObjCInterfaceDecl *ID); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 997 | |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 998 | CodeGen::RValue EmitMessageSend(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 999 | QualType ResultType, |
| 1000 | Selector Sel, |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 1001 | llvm::Value *Arg0, |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1002 | QualType Arg0Ty, |
| 1003 | bool IsSuper, |
| 1004 | const CallArgList &CallArgs); |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 1005 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1006 | /// EmitIvarList - Emit the ivar list for the given |
| 1007 | /// implementation. If ForClass is true the list of class ivars |
| 1008 | /// (i.e. metaclass ivars) is emitted, otherwise the list of |
| 1009 | /// interface ivars will be emitted. The return value has type |
| 1010 | /// IvarListPtrTy. |
| 1011 | llvm::Constant *EmitIvarList(const ObjCImplementationDecl *ID, |
Fariborz Jahanian | 46b86c6 | 2009-01-28 19:12:34 +0000 | [diff] [blame] | 1012 | bool ForClass); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1013 | |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1014 | /// EmitMetaClass - Emit a forward reference to the class structure |
| 1015 | /// for the metaclass of the given interface. The return value has |
| 1016 | /// type ClassPtrTy. |
| 1017 | llvm::Constant *EmitMetaClassRef(const ObjCInterfaceDecl *ID); |
| 1018 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1019 | /// EmitMetaClass - Emit a class structure for the metaclass of the |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1020 | /// given implementation. The return value has type ClassPtrTy. |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1021 | llvm::Constant *EmitMetaClass(const ObjCImplementationDecl *ID, |
| 1022 | llvm::Constant *Protocols, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1023 | const ConstantVector &Methods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1024 | |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1025 | llvm::Constant *GetMethodConstant(const ObjCMethodDecl *MD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1026 | |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1027 | llvm::Constant *GetMethodDescriptionConstant(const ObjCMethodDecl *MD); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1028 | |
| 1029 | /// EmitMethodList - Emit the method list for the given |
Daniel Dunbar | af05bb9 | 2008-08-26 08:29:31 +0000 | [diff] [blame] | 1030 | /// implementation. The return value has type MethodListPtrTy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1031 | llvm::Constant *EmitMethodList(llvm::Twine Name, |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 1032 | const char *Section, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1033 | const ConstantVector &Methods); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1034 | |
| 1035 | /// EmitMethodDescList - Emit a method description list for a list of |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1036 | /// method declarations. |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1037 | /// - TypeName: The name for the type containing the methods. |
| 1038 | /// - IsProtocol: True iff these methods are for a protocol. |
| 1039 | /// - ClassMethds: True iff these are class methods. |
| 1040 | /// - Required: When true, only "required" methods are |
| 1041 | /// listed. Similarly, when false only "optional" methods are |
| 1042 | /// listed. For classes this should always be true. |
| 1043 | /// - begin, end: The method list to output. |
| 1044 | /// |
| 1045 | /// The return value has type MethodDescriptionListPtrTy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1046 | llvm::Constant *EmitMethodDescList(llvm::Twine Name, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1047 | const char *Section, |
| 1048 | const ConstantVector &Methods); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1049 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1050 | /// GetOrEmitProtocol - Get the protocol object for the given |
| 1051 | /// declaration, emitting it if necessary. The return value has type |
| 1052 | /// ProtocolPtrTy. |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1053 | virtual llvm::Constant *GetOrEmitProtocol(const ObjCProtocolDecl *PD); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1054 | |
| 1055 | /// GetOrEmitProtocolRef - Get a forward reference to the protocol |
| 1056 | /// object for the given declaration, emitting it if needed. These |
| 1057 | /// forward references will be filled in with empty bodies if no |
| 1058 | /// definition is seen. The return value has type ProtocolPtrTy. |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1059 | virtual llvm::Constant *GetOrEmitProtocolRef(const ObjCProtocolDecl *PD); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1060 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1061 | /// EmitProtocolExtension - Generate the protocol extension |
| 1062 | /// structure used to store optional instance and class methods, and |
| 1063 | /// protocol properties. The return value has type |
| 1064 | /// ProtocolExtensionPtrTy. |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1065 | llvm::Constant * |
| 1066 | EmitProtocolExtension(const ObjCProtocolDecl *PD, |
| 1067 | const ConstantVector &OptInstanceMethods, |
| 1068 | const ConstantVector &OptClassMethods); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1069 | |
| 1070 | /// EmitProtocolList - Generate the list of referenced |
| 1071 | /// protocols. The return value has type ProtocolListPtrTy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1072 | llvm::Constant *EmitProtocolList(llvm::Twine Name, |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1073 | ObjCProtocolDecl::protocol_iterator begin, |
| 1074 | ObjCProtocolDecl::protocol_iterator end); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1075 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1076 | /// EmitSelector - Return a Value*, of type ObjCTypes.SelectorPtrTy, |
| 1077 | /// for the given selector. |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 1078 | llvm::Value *EmitSelector(CGBuilderTy &Builder, Selector Sel); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1079 | |
| 1080 | public: |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1081 | CGObjCMac(CodeGen::CodeGenModule &cgm); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1082 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1083 | virtual llvm::Function *ModuleInitFunction(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1084 | |
Daniel Dunbar | 8f2926b | 2008-08-23 03:46:30 +0000 | [diff] [blame] | 1085 | virtual CodeGen::RValue GenerateMessageSend(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 1086 | QualType ResultType, |
| 1087 | Selector Sel, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1088 | llvm::Value *Receiver, |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1089 | bool IsClassMessage, |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1090 | const CallArgList &CallArgs, |
| 1091 | const ObjCMethodDecl *Method); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1092 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1093 | virtual CodeGen::RValue |
Daniel Dunbar | 8f2926b | 2008-08-23 03:46:30 +0000 | [diff] [blame] | 1094 | GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 1095 | QualType ResultType, |
| 1096 | Selector Sel, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1097 | const ObjCInterfaceDecl *Class, |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 1098 | bool isCategoryImpl, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1099 | llvm::Value *Receiver, |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1100 | bool IsClassMessage, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1101 | const CallArgList &CallArgs, |
| 1102 | const ObjCMethodDecl *Method); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1103 | |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 1104 | virtual llvm::Value *GetClass(CGBuilderTy &Builder, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1105 | const ObjCInterfaceDecl *ID); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1106 | |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 1107 | virtual llvm::Value *GetSelector(CGBuilderTy &Builder, Selector Sel); |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1108 | |
| 1109 | /// The NeXT/Apple runtimes do not support typed selectors; just emit an |
| 1110 | /// untyped one. |
| 1111 | virtual llvm::Value *GetSelector(CGBuilderTy &Builder, |
| 1112 | const ObjCMethodDecl *Method); |
| 1113 | |
Daniel Dunbar | 7ded7f4 | 2008-08-15 22:20:32 +0000 | [diff] [blame] | 1114 | virtual void GenerateCategory(const ObjCCategoryImplDecl *CMD); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1115 | |
Daniel Dunbar | 7ded7f4 | 2008-08-15 22:20:32 +0000 | [diff] [blame] | 1116 | virtual void GenerateClass(const ObjCImplementationDecl *ClassDecl); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1117 | |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 1118 | virtual llvm::Value *GenerateProtocolRef(CGBuilderTy &Builder, |
Daniel Dunbar | af2f62c | 2008-08-13 00:59:25 +0000 | [diff] [blame] | 1119 | const ObjCProtocolDecl *PD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1120 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 1121 | virtual llvm::Constant *GetPropertyGetFunction(); |
| 1122 | virtual llvm::Constant *GetPropertySetFunction(); |
| 1123 | virtual llvm::Constant *EnumerationMutationFunction(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1124 | |
Fariborz Jahanian | bd71be4 | 2008-11-21 00:49:24 +0000 | [diff] [blame] | 1125 | virtual void EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, |
| 1126 | const Stmt &S); |
Anders Carlsson | 64d5d6c | 2008-09-09 10:04:29 +0000 | [diff] [blame] | 1127 | virtual void EmitThrowStmt(CodeGen::CodeGenFunction &CGF, |
| 1128 | const ObjCAtThrowStmt &S); |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 1129 | virtual llvm::Value * EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1130 | llvm::Value *AddrWeakObj); |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 1131 | virtual void EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1132 | llvm::Value *src, llvm::Value *dst); |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 1133 | virtual void EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, |
| 1134 | llvm::Value *src, llvm::Value *dest); |
Fariborz Jahanian | 7eda836 | 2008-11-20 19:23:36 +0000 | [diff] [blame] | 1135 | virtual void EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 1136 | llvm::Value *src, llvm::Value *dest, |
| 1137 | llvm::Value *ivarOffset); |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 1138 | virtual void EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF, |
| 1139 | llvm::Value *src, llvm::Value *dest); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 1140 | virtual void EmitGCMemmoveCollectable(CodeGen::CodeGenFunction &CGF, |
| 1141 | llvm::Value *dest, llvm::Value *src, |
Fariborz Jahanian | 08c3213 | 2009-08-31 19:33:16 +0000 | [diff] [blame] | 1142 | QualType Ty); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1143 | |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 1144 | virtual LValue EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF, |
| 1145 | QualType ObjectTy, |
| 1146 | llvm::Value *BaseValue, |
| 1147 | const ObjCIvarDecl *Ivar, |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 1148 | unsigned CVRQualifiers); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1149 | virtual llvm::Value *EmitIvarOffset(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 2a03192 | 2009-04-22 05:08:15 +0000 | [diff] [blame] | 1150 | const ObjCInterfaceDecl *Interface, |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1151 | const ObjCIvarDecl *Ivar); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1152 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1153 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 1154 | class CGObjCNonFragileABIMac : public CGObjCCommonMac { |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1155 | private: |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 1156 | ObjCNonFragileABITypesHelper ObjCTypes; |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1157 | llvm::GlobalVariable* ObjCEmptyCacheVar; |
| 1158 | llvm::GlobalVariable* ObjCEmptyVtableVar; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1159 | |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 1160 | /// SuperClassReferences - uniqued super class references. |
| 1161 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> SuperClassReferences; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1162 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 1163 | /// MetaClassReferences - uniqued meta class references. |
| 1164 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> MetaClassReferences; |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 1165 | |
| 1166 | /// EHTypeReferences - uniqued class ehtype references. |
| 1167 | llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*> EHTypeReferences; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1168 | |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1169 | /// NonLegacyDispatchMethods - List of methods for which we do *not* generate |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1170 | /// legacy messaging dispatch. |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1171 | llvm::DenseSet<Selector> NonLegacyDispatchMethods; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1172 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1173 | /// LegacyDispatchedSelector - Returns true if SEL is not in the list of |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1174 | /// NonLegacyDispatchMethods; false otherwise. |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1175 | bool LegacyDispatchedSelector(Selector Sel); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1176 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1177 | /// FinishNonFragileABIModule - Write out global data structures at the end of |
| 1178 | /// processing a translation unit. |
| 1179 | void FinishNonFragileABIModule(); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1180 | |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 1181 | /// AddModuleClassList - Add the given list of class pointers to the |
| 1182 | /// module with the provided symbol and section names. |
| 1183 | void AddModuleClassList(const std::vector<llvm::GlobalValue*> &Container, |
| 1184 | const char *SymbolName, |
| 1185 | const char *SectionName); |
| 1186 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1187 | llvm::GlobalVariable * BuildClassRoTInitializer(unsigned flags, |
| 1188 | unsigned InstanceStart, |
| 1189 | unsigned InstanceSize, |
| 1190 | const ObjCImplementationDecl *ID); |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 1191 | llvm::GlobalVariable * BuildClassMetaData(std::string &ClassName, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1192 | llvm::Constant *IsAGV, |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 1193 | llvm::Constant *SuperClassGV, |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 1194 | llvm::Constant *ClassRoGV, |
| 1195 | bool HiddenVisibility); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1196 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 1197 | llvm::Constant *GetMethodConstant(const ObjCMethodDecl *MD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1198 | |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 1199 | llvm::Constant *GetMethodDescriptionConstant(const ObjCMethodDecl *MD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1200 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 1201 | /// EmitMethodList - Emit the method list for the given |
| 1202 | /// implementation. The return value has type MethodListnfABITy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1203 | llvm::Constant *EmitMethodList(llvm::Twine Name, |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 1204 | const char *Section, |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 1205 | const ConstantVector &Methods); |
| 1206 | /// EmitIvarList - Emit the ivar list for the given |
| 1207 | /// implementation. If ForClass is true the list of class ivars |
| 1208 | /// (i.e. metaclass ivars) is emitted, otherwise the list of |
| 1209 | /// interface ivars will be emitted. The return value has type |
| 1210 | /// IvarListnfABIPtrTy. |
| 1211 | llvm::Constant *EmitIvarList(const ObjCImplementationDecl *ID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1212 | |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 1213 | llvm::Constant *EmitIvarOffsetVar(const ObjCInterfaceDecl *ID, |
Fariborz Jahanian | 2fa5a27 | 2009-01-28 01:36:42 +0000 | [diff] [blame] | 1214 | const ObjCIvarDecl *Ivar, |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 1215 | unsigned long int offset); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1216 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1217 | /// GetOrEmitProtocol - Get the protocol object for the given |
| 1218 | /// declaration, emitting it if necessary. The return value has type |
| 1219 | /// ProtocolPtrTy. |
| 1220 | virtual llvm::Constant *GetOrEmitProtocol(const ObjCProtocolDecl *PD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1221 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1222 | /// GetOrEmitProtocolRef - Get a forward reference to the protocol |
| 1223 | /// object for the given declaration, emitting it if needed. These |
| 1224 | /// forward references will be filled in with empty bodies if no |
| 1225 | /// definition is seen. The return value has type ProtocolPtrTy. |
| 1226 | virtual llvm::Constant *GetOrEmitProtocolRef(const ObjCProtocolDecl *PD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1227 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1228 | /// EmitProtocolList - Generate the list of referenced |
| 1229 | /// protocols. The return value has type ProtocolListPtrTy. |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1230 | llvm::Constant *EmitProtocolList(llvm::Twine Name, |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1231 | ObjCProtocolDecl::protocol_iterator begin, |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 1232 | ObjCProtocolDecl::protocol_iterator end); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1233 | |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 1234 | CodeGen::RValue EmitMessageSend(CodeGen::CodeGenFunction &CGF, |
| 1235 | QualType ResultType, |
| 1236 | Selector Sel, |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 1237 | llvm::Value *Receiver, |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 1238 | QualType Arg0Ty, |
| 1239 | bool IsSuper, |
| 1240 | const CallArgList &CallArgs); |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 1241 | |
| 1242 | /// GetClassGlobal - Return the global variable for the Objective-C |
| 1243 | /// class of the given name. |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 1244 | llvm::GlobalVariable *GetClassGlobal(const std::string &Name); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1245 | |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 1246 | /// EmitClassRef - Return a Value*, of type ObjCTypes.ClassPtrTy, |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 1247 | /// for the given class reference. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1248 | llvm::Value *EmitClassRef(CGBuilderTy &Builder, |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 1249 | const ObjCInterfaceDecl *ID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1250 | |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 1251 | /// EmitSuperClassRef - Return a Value*, of type ObjCTypes.ClassPtrTy, |
| 1252 | /// for the given super class reference. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1253 | llvm::Value *EmitSuperClassRef(CGBuilderTy &Builder, |
| 1254 | const ObjCInterfaceDecl *ID); |
| 1255 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 1256 | /// EmitMetaClassRef - Return a Value * of the address of _class_t |
| 1257 | /// meta-data |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1258 | llvm::Value *EmitMetaClassRef(CGBuilderTy &Builder, |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 1259 | const ObjCInterfaceDecl *ID); |
| 1260 | |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 1261 | /// ObjCIvarOffsetVariable - Returns the ivar offset variable for |
| 1262 | /// the given ivar. |
| 1263 | /// |
Daniel Dunbar | 5e88bea | 2009-04-19 00:31:15 +0000 | [diff] [blame] | 1264 | llvm::GlobalVariable * ObjCIvarOffsetVariable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1265 | const ObjCInterfaceDecl *ID, |
| 1266 | const ObjCIvarDecl *Ivar); |
| 1267 | |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 1268 | /// EmitSelector - Return a Value*, of type ObjCTypes.SelectorPtrTy, |
| 1269 | /// for the given selector. |
| 1270 | llvm::Value *EmitSelector(CGBuilderTy &Builder, Selector Sel); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 1271 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1272 | /// GetInterfaceEHType - Get the cached ehtype for the given Objective-C |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 1273 | /// interface. The return value has type EHTypePtrTy. |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1274 | llvm::Value *GetInterfaceEHType(const ObjCInterfaceDecl *ID, |
| 1275 | bool ForDefinition); |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 1276 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1277 | const char *getMetaclassSymbolPrefix() const { |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 1278 | return "OBJC_METACLASS_$_"; |
| 1279 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1280 | |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 1281 | const char *getClassSymbolPrefix() const { |
| 1282 | return "OBJC_CLASS_$_"; |
| 1283 | } |
| 1284 | |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 1285 | void GetClassSizeInfo(const ObjCImplementationDecl *OID, |
Daniel Dunbar | b02532a | 2009-04-19 23:41:48 +0000 | [diff] [blame] | 1286 | uint32_t &InstanceStart, |
| 1287 | uint32_t &InstanceSize); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1288 | |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1289 | // Shamelessly stolen from Analysis/CFRefCount.cpp |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 1290 | Selector GetNullarySelector(const char* name) const { |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1291 | IdentifierInfo* II = &CGM.getContext().Idents.get(name); |
| 1292 | return CGM.getContext().Selectors.getSelector(0, &II); |
| 1293 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1294 | |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 1295 | Selector GetUnarySelector(const char* name) const { |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 1296 | IdentifierInfo* II = &CGM.getContext().Idents.get(name); |
| 1297 | return CGM.getContext().Selectors.getSelector(1, &II); |
| 1298 | } |
Daniel Dunbar | b02532a | 2009-04-19 23:41:48 +0000 | [diff] [blame] | 1299 | |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 1300 | /// ImplementationIsNonLazy - Check whether the given category or |
| 1301 | /// class implementation is "non-lazy". |
Fariborz Jahanian | ecfbdcb | 2009-05-21 01:03:45 +0000 | [diff] [blame] | 1302 | bool ImplementationIsNonLazy(const ObjCImplDecl *OD) const; |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 1303 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1304 | public: |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 1305 | CGObjCNonFragileABIMac(CodeGen::CodeGenModule &cgm); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1306 | // FIXME. All stubs for now! |
| 1307 | virtual llvm::Function *ModuleInitFunction(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1308 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1309 | virtual CodeGen::RValue GenerateMessageSend(CodeGen::CodeGenFunction &CGF, |
| 1310 | QualType ResultType, |
| 1311 | Selector Sel, |
| 1312 | llvm::Value *Receiver, |
| 1313 | bool IsClassMessage, |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1314 | const CallArgList &CallArgs, |
| 1315 | const ObjCMethodDecl *Method); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1316 | |
| 1317 | virtual CodeGen::RValue |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1318 | GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, |
| 1319 | QualType ResultType, |
| 1320 | Selector Sel, |
| 1321 | const ObjCInterfaceDecl *Class, |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 1322 | bool isCategoryImpl, |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1323 | llvm::Value *Receiver, |
| 1324 | bool IsClassMessage, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1325 | const CallArgList &CallArgs, |
| 1326 | const ObjCMethodDecl *Method); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1327 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1328 | virtual llvm::Value *GetClass(CGBuilderTy &Builder, |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 1329 | const ObjCInterfaceDecl *ID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1330 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1331 | virtual llvm::Value *GetSelector(CGBuilderTy &Builder, Selector Sel) |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 1332 | { return EmitSelector(Builder, Sel); } |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1333 | |
| 1334 | /// The NeXT/Apple runtimes do not support typed selectors; just emit an |
| 1335 | /// untyped one. |
| 1336 | virtual llvm::Value *GetSelector(CGBuilderTy &Builder, |
| 1337 | const ObjCMethodDecl *Method) |
| 1338 | { return EmitSelector(Builder, Method->getSelector()); } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1339 | |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 1340 | virtual void GenerateCategory(const ObjCCategoryImplDecl *CMD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1341 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1342 | virtual void GenerateClass(const ObjCImplementationDecl *ClassDecl); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1343 | virtual llvm::Value *GenerateProtocolRef(CGBuilderTy &Builder, |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 1344 | const ObjCProtocolDecl *PD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1345 | |
| 1346 | virtual llvm::Constant *GetPropertyGetFunction() { |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 1347 | return ObjCTypes.getGetPropertyFn(); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1348 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1349 | virtual llvm::Constant *GetPropertySetFunction() { |
| 1350 | return ObjCTypes.getSetPropertyFn(); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1351 | } |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 1352 | virtual llvm::Constant *EnumerationMutationFunction() { |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 1353 | return ObjCTypes.getEnumerationMutationFn(); |
Daniel Dunbar | 28ed084 | 2009-02-16 18:48:45 +0000 | [diff] [blame] | 1354 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1355 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1356 | virtual void EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 1357 | const Stmt &S); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1358 | virtual void EmitThrowStmt(CodeGen::CodeGenFunction &CGF, |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 1359 | const ObjCAtThrowStmt &S); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1360 | virtual llvm::Value * EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 1361 | llvm::Value *AddrWeakObj); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1362 | virtual void EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 1363 | llvm::Value *src, llvm::Value *dst); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1364 | virtual void EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 1365 | llvm::Value *src, llvm::Value *dest); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1366 | virtual void EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 1367 | llvm::Value *src, llvm::Value *dest, |
| 1368 | llvm::Value *ivarOffset); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1369 | virtual void EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 1370 | llvm::Value *src, llvm::Value *dest); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 1371 | virtual void EmitGCMemmoveCollectable(CodeGen::CodeGenFunction &CGF, |
| 1372 | llvm::Value *dest, llvm::Value *src, |
Fariborz Jahanian | 08c3213 | 2009-08-31 19:33:16 +0000 | [diff] [blame] | 1373 | QualType Ty); |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 1374 | virtual LValue EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF, |
| 1375 | QualType ObjectTy, |
| 1376 | llvm::Value *BaseValue, |
| 1377 | const ObjCIvarDecl *Ivar, |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 1378 | unsigned CVRQualifiers); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1379 | virtual llvm::Value *EmitIvarOffset(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 2a03192 | 2009-04-22 05:08:15 +0000 | [diff] [blame] | 1380 | const ObjCInterfaceDecl *Interface, |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 1381 | const ObjCIvarDecl *Ivar); |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1382 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1383 | |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1384 | } // end anonymous namespace |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1385 | |
| 1386 | /* *** Helper Functions *** */ |
| 1387 | |
| 1388 | /// getConstantGEP() - Help routine to construct simple GEPs. |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 1389 | static llvm::Constant *getConstantGEP(llvm::LLVMContext &VMContext, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1390 | llvm::Constant *C, |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1391 | unsigned idx0, |
| 1392 | unsigned idx1) { |
| 1393 | llvm::Value *Idxs[] = { |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1394 | llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext), idx0), |
| 1395 | llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext), idx1) |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1396 | }; |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1397 | return llvm::ConstantExpr::getGetElementPtr(C, Idxs, 2); |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1398 | } |
| 1399 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1400 | /// hasObjCExceptionAttribute - Return true if this class or any super |
| 1401 | /// class has the __objc_exception__ attribute. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1402 | static bool hasObjCExceptionAttribute(ASTContext &Context, |
Douglas Gregor | 68584ed | 2009-06-18 16:11:24 +0000 | [diff] [blame] | 1403 | const ObjCInterfaceDecl *OID) { |
Argyrios Kyrtzidis | 40b598e | 2009-06-30 02:34:44 +0000 | [diff] [blame] | 1404 | if (OID->hasAttr<ObjCExceptionAttr>()) |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1405 | return true; |
| 1406 | if (const ObjCInterfaceDecl *Super = OID->getSuperClass()) |
Douglas Gregor | 68584ed | 2009-06-18 16:11:24 +0000 | [diff] [blame] | 1407 | return hasObjCExceptionAttribute(Context, Super); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 1408 | return false; |
| 1409 | } |
| 1410 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1411 | /* *** CGObjCMac Public Interface *** */ |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1412 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1413 | CGObjCMac::CGObjCMac(CodeGen::CodeGenModule &cgm) : CGObjCCommonMac(cgm), |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1414 | ObjCTypes(cgm) { |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 1415 | ObjCABI = 1; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1416 | EmitImageInfo(); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1417 | } |
| 1418 | |
Daniel Dunbar | ddb2a3d | 2008-08-16 00:25:02 +0000 | [diff] [blame] | 1419 | /// GetClass - Return a reference to the class for the given interface |
| 1420 | /// decl. |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 1421 | llvm::Value *CGObjCMac::GetClass(CGBuilderTy &Builder, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1422 | const ObjCInterfaceDecl *ID) { |
| 1423 | return EmitClassRef(Builder, ID); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1424 | } |
| 1425 | |
| 1426 | /// GetSelector - Return the pointer to the unique'd string for this selector. |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 1427 | llvm::Value *CGObjCMac::GetSelector(CGBuilderTy &Builder, Selector Sel) { |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 1428 | return EmitSelector(Builder, Sel); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1429 | } |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1430 | llvm::Value *CGObjCMac::GetSelector(CGBuilderTy &Builder, const ObjCMethodDecl |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1431 | *Method) { |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1432 | return EmitSelector(Builder, Method->getSelector()); |
| 1433 | } |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1434 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1435 | /// Generate a constant CFString object. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1436 | /* |
| 1437 | struct __builtin_CFString { |
| 1438 | const int *isa; // point to __CFConstantStringClassReference |
| 1439 | int flags; |
| 1440 | const char *str; |
| 1441 | long length; |
| 1442 | }; |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 1443 | */ |
| 1444 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 1445 | llvm::Constant *CGObjCCommonMac::GenerateConstantString( |
Steve Naroff | 33fdb73 | 2009-03-31 16:53:37 +0000 | [diff] [blame] | 1446 | const ObjCStringLiteral *SL) { |
Steve Naroff | 8d4141f | 2009-04-01 13:55:36 +0000 | [diff] [blame] | 1447 | return CGM.GetAddrOfConstantCFString(SL->getString()); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1448 | } |
| 1449 | |
| 1450 | /// Generates a message send where the super is the receiver. This is |
| 1451 | /// a message send to self with special delivery semantics indicating |
| 1452 | /// which class's method should be called. |
Daniel Dunbar | 8f2926b | 2008-08-23 03:46:30 +0000 | [diff] [blame] | 1453 | CodeGen::RValue |
| 1454 | CGObjCMac::GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 1455 | QualType ResultType, |
| 1456 | Selector Sel, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1457 | const ObjCInterfaceDecl *Class, |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 1458 | bool isCategoryImpl, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1459 | llvm::Value *Receiver, |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1460 | bool IsClassMessage, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1461 | const CodeGen::CallArgList &CallArgs, |
| 1462 | const ObjCMethodDecl *Method) { |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 1463 | // Create and init a super structure; this is a (receiver, class) |
| 1464 | // pair we will pass to objc_msgSendSuper. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1465 | llvm::Value *ObjCSuper = |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 1466 | CGF.Builder.CreateAlloca(ObjCTypes.SuperTy, 0, "objc_super"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1467 | llvm::Value *ReceiverAsObject = |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 1468 | CGF.Builder.CreateBitCast(Receiver, ObjCTypes.ObjectPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1469 | CGF.Builder.CreateStore(ReceiverAsObject, |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 1470 | CGF.Builder.CreateStructGEP(ObjCSuper, 0)); |
Daniel Dunbar | e8b470d | 2008-08-23 04:28:29 +0000 | [diff] [blame] | 1471 | |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1472 | // If this is a class message the metaclass is passed as the target. |
| 1473 | llvm::Value *Target; |
| 1474 | if (IsClassMessage) { |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 1475 | if (isCategoryImpl) { |
| 1476 | // Message sent to 'super' in a class method defined in a category |
| 1477 | // implementation requires an odd treatment. |
| 1478 | // If we are in a class method, we must retrieve the |
| 1479 | // _metaclass_ for the current class, pointed at by |
| 1480 | // the class's "isa" pointer. The following assumes that |
| 1481 | // isa" is the first ivar in a class (which it must be). |
| 1482 | Target = EmitClassRef(CGF.Builder, Class->getSuperClass()); |
| 1483 | Target = CGF.Builder.CreateStructGEP(Target, 0); |
| 1484 | Target = CGF.Builder.CreateLoad(Target); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 1485 | } else { |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 1486 | llvm::Value *MetaClassPtr = EmitMetaClassRef(Class); |
| 1487 | llvm::Value *SuperPtr = CGF.Builder.CreateStructGEP(MetaClassPtr, 1); |
| 1488 | llvm::Value *Super = CGF.Builder.CreateLoad(SuperPtr); |
| 1489 | Target = Super; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1490 | } |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1491 | } else { |
Fariborz Jahanian | b0069ee | 2009-11-12 20:14:24 +0000 | [diff] [blame^] | 1492 | llvm::Value *ClassPtr = EmitSuperClassRef(Class); |
| 1493 | ClassPtr = CGF.Builder.CreateStructGEP(ClassPtr, 1); |
| 1494 | Target = CGF.Builder.CreateLoad(ClassPtr); |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1495 | } |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 1496 | // FIXME: We shouldn't need to do this cast, rectify the ASTContext and |
| 1497 | // ObjCTypes types. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1498 | const llvm::Type *ClassTy = |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1499 | CGM.getTypes().ConvertType(CGF.getContext().getObjCClassType()); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1500 | Target = CGF.Builder.CreateBitCast(Target, ClassTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1501 | CGF.Builder.CreateStore(Target, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1502 | CGF.Builder.CreateStructGEP(ObjCSuper, 1)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1503 | return EmitLegacyMessageSend(CGF, ResultType, |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1504 | EmitSelector(CGF.Builder, Sel), |
| 1505 | ObjCSuper, ObjCTypes.SuperPtrCTy, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1506 | true, CallArgs, Method, ObjCTypes); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1507 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1508 | |
| 1509 | /// Generate code for a message send expression. |
Daniel Dunbar | 8f2926b | 2008-08-23 03:46:30 +0000 | [diff] [blame] | 1510 | CodeGen::RValue CGObjCMac::GenerateMessageSend(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 1511 | QualType ResultType, |
| 1512 | Selector Sel, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 1513 | llvm::Value *Receiver, |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1514 | bool IsClassMessage, |
Fariborz Jahanian | df9ccc6 | 2009-05-05 21:36:57 +0000 | [diff] [blame] | 1515 | const CallArgList &CallArgs, |
| 1516 | const ObjCMethodDecl *Method) { |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1517 | return EmitLegacyMessageSend(CGF, ResultType, |
| 1518 | EmitSelector(CGF.Builder, Sel), |
| 1519 | Receiver, CGF.getContext().getObjCIdType(), |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1520 | false, CallArgs, Method, ObjCTypes); |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 1521 | } |
| 1522 | |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 1523 | CodeGen::RValue |
| 1524 | CGObjCCommonMac::EmitLegacyMessageSend(CodeGen::CodeGenFunction &CGF, |
| 1525 | QualType ResultType, |
| 1526 | llvm::Value *Sel, |
| 1527 | llvm::Value *Arg0, |
| 1528 | QualType Arg0Ty, |
| 1529 | bool IsSuper, |
| 1530 | const CallArgList &CallArgs, |
| 1531 | const ObjCMethodDecl *Method, |
| 1532 | const ObjCCommonTypesHelper &ObjCTypes) { |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1533 | CallArgList ActualArgs; |
Fariborz Jahanian | d019d96 | 2009-04-24 21:07:43 +0000 | [diff] [blame] | 1534 | if (!IsSuper) |
| 1535 | Arg0 = CGF.Builder.CreateBitCast(Arg0, ObjCTypes.ObjectPtrTy, "tmp"); |
Daniel Dunbar | 46f45b9 | 2008-09-09 01:06:48 +0000 | [diff] [blame] | 1536 | ActualArgs.push_back(std::make_pair(RValue::get(Arg0), Arg0Ty)); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1537 | ActualArgs.push_back(std::make_pair(RValue::get(Sel), |
Daniel Dunbar | 19cd87e | 2008-08-30 03:02:31 +0000 | [diff] [blame] | 1538 | CGF.getContext().getObjCSelType())); |
| 1539 | ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1540 | |
Daniel Dunbar | 541b63b | 2009-02-02 23:23:47 +0000 | [diff] [blame] | 1541 | CodeGenTypes &Types = CGM.getTypes(); |
| 1542 | const CGFunctionInfo &FnInfo = Types.getFunctionInfo(ResultType, ActualArgs); |
Daniel Dunbar | 6793966 | 2009-09-17 04:01:40 +0000 | [diff] [blame] | 1543 | const llvm::FunctionType *FTy = |
| 1544 | Types.GetFunctionType(FnInfo, Method ? Method->isVariadic() : false); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1545 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1546 | llvm::Constant *Fn = NULL; |
Daniel Dunbar | 88b5396 | 2009-02-02 22:03:45 +0000 | [diff] [blame] | 1547 | if (CGM.ReturnTypeUsesSret(FnInfo)) { |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1548 | Fn = (ObjCABI == 2) ? ObjCTypes.getSendStretFn2(IsSuper) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1549 | : ObjCTypes.getSendStretFn(IsSuper); |
Daniel Dunbar | 5669e57 | 2008-10-17 03:24:53 +0000 | [diff] [blame] | 1550 | } else if (ResultType->isFloatingType()) { |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1551 | if (ObjCABI == 2) { |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 1552 | if (const BuiltinType *BT = ResultType->getAs<BuiltinType>()) { |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1553 | BuiltinType::Kind k = BT->getKind(); |
| 1554 | Fn = (k == BuiltinType::LongDouble) ? ObjCTypes.getSendFpretFn2(IsSuper) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1555 | : ObjCTypes.getSendFn2(IsSuper); |
Daniel Dunbar | 42f963d | 2009-06-10 04:38:50 +0000 | [diff] [blame] | 1556 | } else { |
| 1557 | Fn = ObjCTypes.getSendFn2(IsSuper); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1558 | } |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 1559 | } else |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 1560 | // FIXME. This currently matches gcc's API for x86-32. May need to change |
| 1561 | // for others if we have their API. |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1562 | Fn = ObjCTypes.getSendFpretFn(IsSuper); |
Daniel Dunbar | 5669e57 | 2008-10-17 03:24:53 +0000 | [diff] [blame] | 1563 | } else { |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1564 | Fn = (ObjCABI == 2) ? ObjCTypes.getSendFn2(IsSuper) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1565 | : ObjCTypes.getSendFn(IsSuper); |
Daniel Dunbar | 5669e57 | 2008-10-17 03:24:53 +0000 | [diff] [blame] | 1566 | } |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 1567 | assert(Fn && "EmitLegacyMessageSend - unknown API"); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1568 | Fn = llvm::ConstantExpr::getBitCast(Fn, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1569 | llvm::PointerType::getUnqual(FTy)); |
Daniel Dunbar | 88b5396 | 2009-02-02 22:03:45 +0000 | [diff] [blame] | 1570 | return CGF.EmitCall(FnInfo, Fn, ActualArgs); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1571 | } |
| 1572 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1573 | llvm::Value *CGObjCMac::GenerateProtocolRef(CGBuilderTy &Builder, |
Daniel Dunbar | af2f62c | 2008-08-13 00:59:25 +0000 | [diff] [blame] | 1574 | const ObjCProtocolDecl *PD) { |
Daniel Dunbar | c67876d | 2008-09-04 04:33:15 +0000 | [diff] [blame] | 1575 | // 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] | 1576 | // resolved. Investigate. Its also wasteful to look this up over and over. |
Daniel Dunbar | c67876d | 2008-09-04 04:33:15 +0000 | [diff] [blame] | 1577 | LazySymbols.insert(&CGM.getContext().Idents.get("Protocol")); |
| 1578 | |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1579 | return llvm::ConstantExpr::getBitCast(GetProtocolRef(PD), |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1580 | ObjCTypes.ExternalProtocolPtrTy); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1581 | } |
| 1582 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1583 | void CGObjCCommonMac::GenerateProtocol(const ObjCProtocolDecl *PD) { |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 1584 | // FIXME: We shouldn't need this, the protocol decl should contain enough |
| 1585 | // information to tell us whether this was a declaration or a definition. |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1586 | DefinedProtocols.insert(PD->getIdentifier()); |
| 1587 | |
| 1588 | // If we have generated a forward reference to this protocol, emit |
| 1589 | // it now. Otherwise do nothing, the protocol objects are lazily |
| 1590 | // emitted. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1591 | if (Protocols.count(PD->getIdentifier())) |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1592 | GetOrEmitProtocol(PD); |
| 1593 | } |
| 1594 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 1595 | llvm::Constant *CGObjCCommonMac::GetProtocolRef(const ObjCProtocolDecl *PD) { |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1596 | if (DefinedProtocols.count(PD->getIdentifier())) |
| 1597 | return GetOrEmitProtocol(PD); |
| 1598 | return GetOrEmitProtocolRef(PD); |
| 1599 | } |
| 1600 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1601 | /* |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1602 | // APPLE LOCAL radar 4585769 - Objective-C 1.0 extensions |
| 1603 | struct _objc_protocol { |
| 1604 | struct _objc_protocol_extension *isa; |
| 1605 | char *protocol_name; |
| 1606 | struct _objc_protocol_list *protocol_list; |
| 1607 | struct _objc__method_prototype_list *instance_methods; |
| 1608 | struct _objc__method_prototype_list *class_methods |
| 1609 | }; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1610 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1611 | See EmitProtocolExtension(). |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1612 | */ |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1613 | llvm::Constant *CGObjCMac::GetOrEmitProtocol(const ObjCProtocolDecl *PD) { |
| 1614 | llvm::GlobalVariable *&Entry = Protocols[PD->getIdentifier()]; |
| 1615 | |
| 1616 | // Early exit if a defining object has already been generated. |
| 1617 | if (Entry && Entry->hasInitializer()) |
| 1618 | return Entry; |
| 1619 | |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 1620 | // 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] | 1621 | // resolved. Investigate. Its also wasteful to look this up over and over. |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 1622 | LazySymbols.insert(&CGM.getContext().Idents.get("Protocol")); |
| 1623 | |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1624 | // Construct method lists. |
| 1625 | std::vector<llvm::Constant*> InstanceMethods, ClassMethods; |
| 1626 | std::vector<llvm::Constant*> OptInstanceMethods, OptClassMethods; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1627 | for (ObjCProtocolDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 1628 | i = PD->instmeth_begin(), e = PD->instmeth_end(); i != e; ++i) { |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1629 | ObjCMethodDecl *MD = *i; |
| 1630 | llvm::Constant *C = GetMethodDescriptionConstant(MD); |
| 1631 | if (MD->getImplementationControl() == ObjCMethodDecl::Optional) { |
| 1632 | OptInstanceMethods.push_back(C); |
| 1633 | } else { |
| 1634 | InstanceMethods.push_back(C); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1635 | } |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1636 | } |
| 1637 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1638 | for (ObjCProtocolDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 1639 | i = PD->classmeth_begin(), e = PD->classmeth_end(); i != e; ++i) { |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1640 | ObjCMethodDecl *MD = *i; |
| 1641 | llvm::Constant *C = GetMethodDescriptionConstant(MD); |
| 1642 | if (MD->getImplementationControl() == ObjCMethodDecl::Optional) { |
| 1643 | OptClassMethods.push_back(C); |
| 1644 | } else { |
| 1645 | ClassMethods.push_back(C); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1646 | } |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1647 | } |
| 1648 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1649 | std::vector<llvm::Constant*> Values(5); |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1650 | Values[0] = EmitProtocolExtension(PD, OptInstanceMethods, OptClassMethods); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1651 | Values[1] = GetClassName(PD->getIdentifier()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1652 | Values[2] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1653 | EmitProtocolList("\01L_OBJC_PROTOCOL_REFS_" + PD->getName(), |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1654 | PD->protocol_begin(), |
| 1655 | PD->protocol_end()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1656 | Values[3] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1657 | EmitMethodDescList("\01L_OBJC_PROTOCOL_INSTANCE_METHODS_" + PD->getName(), |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1658 | "__OBJC,__cat_inst_meth,regular,no_dead_strip", |
| 1659 | InstanceMethods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1660 | Values[4] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1661 | EmitMethodDescList("\01L_OBJC_PROTOCOL_CLASS_METHODS_" + PD->getName(), |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1662 | "__OBJC,__cat_cls_meth,regular,no_dead_strip", |
| 1663 | ClassMethods); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 1664 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ProtocolTy, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1665 | Values); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1666 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1667 | if (Entry) { |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1668 | // Already created, fix the linkage and update the initializer. |
| 1669 | Entry->setLinkage(llvm::GlobalValue::InternalLinkage); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1670 | Entry->setInitializer(Init); |
| 1671 | } else { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1672 | Entry = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 1673 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ProtocolTy, false, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1674 | llvm::GlobalValue::InternalLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1675 | Init, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1676 | "\01L_OBJC_PROTOCOL_" + PD->getName()); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1677 | Entry->setSection("__OBJC,__protocol,regular,no_dead_strip"); |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 1678 | Entry->setAlignment(4); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1679 | // FIXME: Is this necessary? Why only for protocol? |
| 1680 | Entry->setAlignment(4); |
| 1681 | } |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 1682 | CGM.AddUsedGlobal(Entry); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1683 | |
| 1684 | return Entry; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1685 | } |
| 1686 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1687 | llvm::Constant *CGObjCMac::GetOrEmitProtocolRef(const ObjCProtocolDecl *PD) { |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1688 | llvm::GlobalVariable *&Entry = Protocols[PD->getIdentifier()]; |
| 1689 | |
| 1690 | if (!Entry) { |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1691 | // We use the initializer as a marker of whether this is a forward |
| 1692 | // reference or not. At module finalization we add the empty |
| 1693 | // contents for protocols which were referenced but never defined. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1694 | Entry = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 1695 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ProtocolTy, false, |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 1696 | llvm::GlobalValue::ExternalLinkage, |
| 1697 | 0, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1698 | "\01L_OBJC_PROTOCOL_" + PD->getName()); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1699 | Entry->setSection("__OBJC,__protocol,regular,no_dead_strip"); |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 1700 | Entry->setAlignment(4); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1701 | // FIXME: Is this necessary? Why only for protocol? |
| 1702 | Entry->setAlignment(4); |
| 1703 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1704 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1705 | return Entry; |
| 1706 | } |
| 1707 | |
| 1708 | /* |
| 1709 | struct _objc_protocol_extension { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1710 | uint32_t size; |
| 1711 | struct objc_method_description_list *optional_instance_methods; |
| 1712 | struct objc_method_description_list *optional_class_methods; |
| 1713 | struct objc_property_list *instance_properties; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1714 | }; |
| 1715 | */ |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1716 | llvm::Constant * |
| 1717 | CGObjCMac::EmitProtocolExtension(const ObjCProtocolDecl *PD, |
| 1718 | const ConstantVector &OptInstanceMethods, |
| 1719 | const ConstantVector &OptClassMethods) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1720 | uint64_t Size = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 1721 | CGM.getTargetData().getTypeAllocSize(ObjCTypes.ProtocolExtensionTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1722 | std::vector<llvm::Constant*> Values(4); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 1723 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1724 | Values[1] = |
| 1725 | EmitMethodDescList("\01L_OBJC_PROTOCOL_INSTANCE_METHODS_OPT_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1726 | + PD->getName(), |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1727 | "__OBJC,__cat_inst_meth,regular,no_dead_strip", |
| 1728 | OptInstanceMethods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1729 | Values[2] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1730 | EmitMethodDescList("\01L_OBJC_PROTOCOL_CLASS_METHODS_OPT_" + PD->getName(), |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1731 | "__OBJC,__cat_cls_meth,regular,no_dead_strip", |
| 1732 | OptClassMethods); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1733 | Values[3] = EmitPropertyList("\01L_OBJC_$_PROP_PROTO_LIST_" + PD->getName(), |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 1734 | 0, PD, ObjCTypes); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1735 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1736 | // Return null if no extension bits are used. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1737 | if (Values[1]->isNullValue() && Values[2]->isNullValue() && |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1738 | Values[3]->isNullValue()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1739 | return llvm::Constant::getNullValue(ObjCTypes.ProtocolExtensionPtrTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1740 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1741 | llvm::Constant *Init = |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 1742 | llvm::ConstantStruct::get(ObjCTypes.ProtocolExtensionTy, Values); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1743 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 1744 | // No special section, but goes in llvm.used |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1745 | return CreateMetadataVar("\01L_OBJC_PROTOCOLEXT_" + PD->getName(), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1746 | Init, |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 1747 | 0, 0, true); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1748 | } |
| 1749 | |
| 1750 | /* |
| 1751 | struct objc_protocol_list { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1752 | struct objc_protocol_list *next; |
| 1753 | long count; |
| 1754 | Protocol *list[]; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1755 | }; |
| 1756 | */ |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1757 | llvm::Constant * |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1758 | CGObjCMac::EmitProtocolList(llvm::Twine Name, |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1759 | ObjCProtocolDecl::protocol_iterator begin, |
| 1760 | ObjCProtocolDecl::protocol_iterator end) { |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1761 | std::vector<llvm::Constant*> ProtocolRefs; |
| 1762 | |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1763 | for (; begin != end; ++begin) |
| 1764 | ProtocolRefs.push_back(GetProtocolRef(*begin)); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1765 | |
| 1766 | // Just return null for empty protocol lists |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1767 | if (ProtocolRefs.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1768 | return llvm::Constant::getNullValue(ObjCTypes.ProtocolListPtrTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1769 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1770 | // This list is null terminated. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1771 | ProtocolRefs.push_back(llvm::Constant::getNullValue(ObjCTypes.ProtocolPtrTy)); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1772 | |
| 1773 | std::vector<llvm::Constant*> Values(3); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1774 | // This field is only used by the runtime. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1775 | Values[0] = llvm::Constant::getNullValue(ObjCTypes.ProtocolListPtrTy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 1776 | Values[1] = llvm::ConstantInt::get(ObjCTypes.LongTy, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1777 | ProtocolRefs.size() - 1); |
| 1778 | Values[2] = |
| 1779 | llvm::ConstantArray::get(llvm::ArrayType::get(ObjCTypes.ProtocolPtrTy, |
| 1780 | ProtocolRefs.size()), |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1781 | ProtocolRefs); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1782 | |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 1783 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1784 | llvm::GlobalVariable *GV = |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 1785 | CreateMetadataVar(Name, Init, "__OBJC,__cat_cls_meth,regular,no_dead_strip", |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 1786 | 4, false); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1787 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.ProtocolListPtrTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1788 | } |
| 1789 | |
| 1790 | /* |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1791 | struct _objc_property { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1792 | const char * const name; |
| 1793 | const char * const attributes; |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1794 | }; |
| 1795 | |
| 1796 | struct _objc_property_list { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1797 | uint32_t entsize; // sizeof (struct _objc_property) |
| 1798 | uint32_t prop_count; |
| 1799 | struct _objc_property[prop_count]; |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1800 | }; |
| 1801 | */ |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1802 | llvm::Constant *CGObjCCommonMac::EmitPropertyList(llvm::Twine Name, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1803 | const Decl *Container, |
| 1804 | const ObjCContainerDecl *OCD, |
| 1805 | const ObjCCommonTypesHelper &ObjCTypes) { |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1806 | std::vector<llvm::Constant*> Properties, Prop(2); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1807 | for (ObjCContainerDecl::prop_iterator I = OCD->prop_begin(), |
| 1808 | E = OCD->prop_end(); I != E; ++I) { |
Steve Naroff | 93983f8 | 2009-01-11 12:47:58 +0000 | [diff] [blame] | 1809 | const ObjCPropertyDecl *PD = *I; |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1810 | Prop[0] = GetPropertyName(PD->getIdentifier()); |
Daniel Dunbar | c56f34a | 2008-08-28 04:38:10 +0000 | [diff] [blame] | 1811 | Prop[1] = GetPropertyTypeString(PD, Container); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 1812 | Properties.push_back(llvm::ConstantStruct::get(ObjCTypes.PropertyTy, |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1813 | Prop)); |
| 1814 | } |
| 1815 | |
| 1816 | // Return null for empty list. |
| 1817 | if (Properties.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1818 | return llvm::Constant::getNullValue(ObjCTypes.PropertyListPtrTy); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1819 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1820 | unsigned PropertySize = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 1821 | CGM.getTargetData().getTypeAllocSize(ObjCTypes.PropertyTy); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1822 | std::vector<llvm::Constant*> Values(3); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 1823 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, PropertySize); |
| 1824 | Values[1] = llvm::ConstantInt::get(ObjCTypes.IntTy, Properties.size()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1825 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.PropertyTy, |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1826 | Properties.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 1827 | Values[2] = llvm::ConstantArray::get(AT, Properties); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 1828 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1829 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1830 | llvm::GlobalVariable *GV = |
| 1831 | CreateMetadataVar(Name, Init, |
| 1832 | (ObjCABI == 2) ? "__DATA, __objc_const" : |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 1833 | "__OBJC,__property,regular,no_dead_strip", |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1834 | (ObjCABI == 2) ? 8 : 4, |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 1835 | true); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1836 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.PropertyListPtrTy); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1837 | } |
| 1838 | |
| 1839 | /* |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1840 | struct objc_method_description_list { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1841 | int count; |
| 1842 | struct objc_method_description list[]; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1843 | }; |
| 1844 | */ |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1845 | llvm::Constant * |
| 1846 | CGObjCMac::GetMethodDescriptionConstant(const ObjCMethodDecl *MD) { |
| 1847 | std::vector<llvm::Constant*> Desc(2); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 1848 | Desc[0] = |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1849 | llvm::ConstantExpr::getBitCast(GetMethodVarName(MD->getSelector()), |
| 1850 | ObjCTypes.SelectorPtrTy); |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1851 | Desc[1] = GetMethodVarType(MD); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 1852 | return llvm::ConstantStruct::get(ObjCTypes.MethodDescriptionTy, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1853 | Desc); |
| 1854 | } |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1855 | |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1856 | llvm::Constant *CGObjCMac::EmitMethodDescList(llvm::Twine Name, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1857 | const char *Section, |
| 1858 | const ConstantVector &Methods) { |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1859 | // Return null for empty list. |
| 1860 | if (Methods.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1861 | return llvm::Constant::getNullValue(ObjCTypes.MethodDescriptionListPtrTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1862 | |
| 1863 | std::vector<llvm::Constant*> Values(2); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 1864 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Methods.size()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1865 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.MethodDescriptionTy, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1866 | Methods.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 1867 | Values[1] = llvm::ConstantArray::get(AT, Methods); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 1868 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1869 | |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 1870 | llvm::GlobalVariable *GV = CreateMetadataVar(Name, Init, Section, 4, true); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1871 | return llvm::ConstantExpr::getBitCast(GV, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 1872 | ObjCTypes.MethodDescriptionListPtrTy); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1873 | } |
| 1874 | |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 1875 | /* |
| 1876 | struct _objc_category { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1877 | char *category_name; |
| 1878 | char *class_name; |
| 1879 | struct _objc_method_list *instance_methods; |
| 1880 | struct _objc_method_list *class_methods; |
| 1881 | struct _objc_protocol_list *protocols; |
| 1882 | uint32_t size; // <rdar://4585769> |
| 1883 | struct _objc_property_list *instance_properties; |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 1884 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1885 | */ |
Daniel Dunbar | 7ded7f4 | 2008-08-15 22:20:32 +0000 | [diff] [blame] | 1886 | void CGObjCMac::GenerateCategory(const ObjCCategoryImplDecl *OCD) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 1887 | unsigned Size = CGM.getTargetData().getTypeAllocSize(ObjCTypes.CategoryTy); |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 1888 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 1889 | // FIXME: This is poor design, the OCD should have a pointer to the category |
| 1890 | // decl. Additionally, note that Category can be null for the @implementation |
| 1891 | // w/o an @interface case. Sema should just create one for us as it does for |
| 1892 | // @implementation so everyone else can live life under a clear blue sky. |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 1893 | const ObjCInterfaceDecl *Interface = OCD->getClassInterface(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1894 | const ObjCCategoryDecl *Category = |
Daniel Dunbar | 86e2f40 | 2008-08-26 23:03:11 +0000 | [diff] [blame] | 1895 | Interface->FindCategoryDeclaration(OCD->getIdentifier()); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1896 | |
| 1897 | llvm::SmallString<256> ExtName; |
| 1898 | llvm::raw_svector_ostream(ExtName) << Interface->getName() << '_' |
| 1899 | << OCD->getName(); |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 1900 | |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 1901 | std::vector<llvm::Constant*> InstanceMethods, ClassMethods; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1902 | for (ObjCCategoryImplDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 1903 | i = OCD->instmeth_begin(), e = OCD->instmeth_end(); i != e; ++i) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 1904 | // Instance methods should always be defined. |
| 1905 | InstanceMethods.push_back(GetMethodConstant(*i)); |
| 1906 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1907 | for (ObjCCategoryImplDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 1908 | i = OCD->classmeth_begin(), e = OCD->classmeth_end(); i != e; ++i) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 1909 | // Class methods should always be defined. |
| 1910 | ClassMethods.push_back(GetMethodConstant(*i)); |
| 1911 | } |
| 1912 | |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 1913 | std::vector<llvm::Constant*> Values(7); |
| 1914 | Values[0] = GetClassName(OCD->getIdentifier()); |
| 1915 | Values[1] = GetClassName(Interface->getIdentifier()); |
Fariborz Jahanian | 679cd7f | 2009-04-29 20:40:05 +0000 | [diff] [blame] | 1916 | LazySymbols.insert(Interface->getIdentifier()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1917 | Values[2] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1918 | EmitMethodList("\01L_OBJC_CATEGORY_INSTANCE_METHODS_" + ExtName.str(), |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 1919 | "__OBJC,__cat_inst_meth,regular,no_dead_strip", |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 1920 | InstanceMethods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1921 | Values[3] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1922 | EmitMethodList("\01L_OBJC_CATEGORY_CLASS_METHODS_" + ExtName.str(), |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 1923 | "__OBJC,__cat_cls_meth,regular,no_dead_strip", |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 1924 | ClassMethods); |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1925 | if (Category) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1926 | Values[4] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1927 | EmitProtocolList("\01L_OBJC_CATEGORY_PROTOCOLS_" + ExtName.str(), |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1928 | Category->protocol_begin(), |
| 1929 | Category->protocol_end()); |
| 1930 | } else { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1931 | Values[4] = llvm::Constant::getNullValue(ObjCTypes.ProtocolListPtrTy); |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 1932 | } |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 1933 | Values[5] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Daniel Dunbar | 86e2f40 | 2008-08-26 23:03:11 +0000 | [diff] [blame] | 1934 | |
| 1935 | // If there is no category @interface then there can be no properties. |
| 1936 | if (Category) { |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1937 | Values[6] = EmitPropertyList("\01l_OBJC_$_PROP_LIST_" + ExtName.str(), |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 1938 | OCD, Category, ObjCTypes); |
Daniel Dunbar | 86e2f40 | 2008-08-26 23:03:11 +0000 | [diff] [blame] | 1939 | } else { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 1940 | Values[6] = llvm::Constant::getNullValue(ObjCTypes.PropertyListPtrTy); |
Daniel Dunbar | 86e2f40 | 2008-08-26 23:03:11 +0000 | [diff] [blame] | 1941 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1942 | |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 1943 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.CategoryTy, |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 1944 | Values); |
| 1945 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1946 | llvm::GlobalVariable *GV = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1947 | CreateMetadataVar("\01L_OBJC_CATEGORY_" + ExtName.str(), Init, |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 1948 | "__OBJC,__category,regular,no_dead_strip", |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 1949 | 4, true); |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 1950 | DefinedCategories.push_back(GV); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 1951 | } |
| 1952 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1953 | // FIXME: Get from somewhere? |
| 1954 | enum ClassFlags { |
| 1955 | eClassFlags_Factory = 0x00001, |
| 1956 | eClassFlags_Meta = 0x00002, |
| 1957 | // <rdr://5142207> |
| 1958 | eClassFlags_HasCXXStructors = 0x02000, |
| 1959 | eClassFlags_Hidden = 0x20000, |
| 1960 | eClassFlags_ABI2_Hidden = 0x00010, |
| 1961 | eClassFlags_ABI2_HasCXXStructors = 0x00004 // <rdr://4923634> |
| 1962 | }; |
| 1963 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1964 | /* |
| 1965 | struct _objc_class { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1966 | Class isa; |
| 1967 | Class super_class; |
| 1968 | const char *name; |
| 1969 | long version; |
| 1970 | long info; |
| 1971 | long instance_size; |
| 1972 | struct _objc_ivar_list *ivars; |
| 1973 | struct _objc_method_list *methods; |
| 1974 | struct _objc_cache *cache; |
| 1975 | struct _objc_protocol_list *protocols; |
| 1976 | // Objective-C 1.0 extensions (<rdr://4585769>) |
| 1977 | const char *ivar_layout; |
| 1978 | struct _objc_class_ext *ext; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1979 | }; |
| 1980 | |
| 1981 | See EmitClassExtension(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1982 | */ |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1983 | void CGObjCMac::GenerateClass(const ObjCImplementationDecl *ID) { |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 1984 | DefinedSymbols.insert(ID->getIdentifier()); |
| 1985 | |
Chris Lattner | 8ec03f5 | 2008-11-24 03:54:41 +0000 | [diff] [blame] | 1986 | std::string ClassName = ID->getNameAsString(); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1987 | // FIXME: Gross |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1988 | ObjCInterfaceDecl *Interface = |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1989 | const_cast<ObjCInterfaceDecl*>(ID->getClassInterface()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1990 | llvm::Constant *Protocols = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 1991 | EmitProtocolList("\01L_OBJC_CLASS_PROTOCOLS_" + ID->getName(), |
Daniel Dunbar | dbc9337 | 2008-08-21 21:57:41 +0000 | [diff] [blame] | 1992 | Interface->protocol_begin(), |
| 1993 | Interface->protocol_end()); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1994 | unsigned Flags = eClassFlags_Factory; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 1995 | unsigned Size = |
Daniel Dunbar | 2bebbf0 | 2009-05-03 10:46:44 +0000 | [diff] [blame] | 1996 | CGM.getContext().getASTObjCImplementationLayout(ID).getSize() / 8; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 1997 | |
| 1998 | // FIXME: Set CXX-structors flag. |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 1999 | if (CGM.getDeclVisibilityMode(ID->getClassInterface()) == LangOptions::Hidden) |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2000 | Flags |= eClassFlags_Hidden; |
| 2001 | |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2002 | std::vector<llvm::Constant*> InstanceMethods, ClassMethods; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2003 | for (ObjCImplementationDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2004 | i = ID->instmeth_begin(), e = ID->instmeth_end(); i != e; ++i) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2005 | // Instance methods should always be defined. |
| 2006 | InstanceMethods.push_back(GetMethodConstant(*i)); |
| 2007 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2008 | for (ObjCImplementationDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2009 | i = ID->classmeth_begin(), e = ID->classmeth_end(); i != e; ++i) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2010 | // Class methods should always be defined. |
| 2011 | ClassMethods.push_back(GetMethodConstant(*i)); |
| 2012 | } |
| 2013 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2014 | for (ObjCImplementationDecl::propimpl_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 2015 | i = ID->propimpl_begin(), e = ID->propimpl_end(); i != e; ++i) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2016 | ObjCPropertyImplDecl *PID = *i; |
| 2017 | |
| 2018 | if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize) { |
| 2019 | ObjCPropertyDecl *PD = PID->getPropertyDecl(); |
| 2020 | |
| 2021 | if (ObjCMethodDecl *MD = PD->getGetterMethodDecl()) |
| 2022 | if (llvm::Constant *C = GetMethodConstant(MD)) |
| 2023 | InstanceMethods.push_back(C); |
| 2024 | if (ObjCMethodDecl *MD = PD->getSetterMethodDecl()) |
| 2025 | if (llvm::Constant *C = GetMethodConstant(MD)) |
| 2026 | InstanceMethods.push_back(C); |
| 2027 | } |
| 2028 | } |
| 2029 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2030 | std::vector<llvm::Constant*> Values(12); |
Daniel Dunbar | 5384b09 | 2009-05-03 08:56:52 +0000 | [diff] [blame] | 2031 | Values[ 0] = EmitMetaClass(ID, Protocols, ClassMethods); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2032 | if (ObjCInterfaceDecl *Super = Interface->getSuperClass()) { |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 2033 | // Record a reference to the super class. |
| 2034 | LazySymbols.insert(Super->getIdentifier()); |
| 2035 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2036 | Values[ 1] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2037 | llvm::ConstantExpr::getBitCast(GetClassName(Super->getIdentifier()), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2038 | ObjCTypes.ClassPtrTy); |
| 2039 | } else { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2040 | Values[ 1] = llvm::Constant::getNullValue(ObjCTypes.ClassPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2041 | } |
| 2042 | Values[ 2] = GetClassName(ID->getIdentifier()); |
| 2043 | // Version is always 0. |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2044 | Values[ 3] = llvm::ConstantInt::get(ObjCTypes.LongTy, 0); |
| 2045 | Values[ 4] = llvm::ConstantInt::get(ObjCTypes.LongTy, Flags); |
| 2046 | Values[ 5] = llvm::ConstantInt::get(ObjCTypes.LongTy, Size); |
Fariborz Jahanian | 46b86c6 | 2009-01-28 19:12:34 +0000 | [diff] [blame] | 2047 | Values[ 6] = EmitIvarList(ID, false); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2048 | Values[ 7] = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2049 | EmitMethodList("\01L_OBJC_INSTANCE_METHODS_" + ID->getName(), |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 2050 | "__OBJC,__inst_meth,regular,no_dead_strip", |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2051 | InstanceMethods); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2052 | // cache is always NULL. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2053 | Values[ 8] = llvm::Constant::getNullValue(ObjCTypes.CachePtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2054 | Values[ 9] = Protocols; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2055 | Values[10] = BuildIvarLayout(ID, true); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2056 | Values[11] = EmitClassExtension(ID); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2057 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ClassTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2058 | Values); |
Fariborz Jahanian | b0069ee | 2009-11-12 20:14:24 +0000 | [diff] [blame^] | 2059 | std::string Name("\01L_OBJC_CLASS_"); |
| 2060 | Name += ClassName; |
| 2061 | const char *Section = "__OBJC,__class,regular,no_dead_strip"; |
| 2062 | // Check for a forward reference. |
| 2063 | llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name); |
| 2064 | if (GV) { |
| 2065 | assert(GV->getType()->getElementType() == ObjCTypes.ClassTy && |
| 2066 | "Forward metaclass reference has incorrect type."); |
| 2067 | GV->setLinkage(llvm::GlobalValue::InternalLinkage); |
| 2068 | GV->setInitializer(Init); |
| 2069 | GV->setSection(Section); |
| 2070 | GV->setAlignment(4); |
| 2071 | CGM.AddUsedGlobal(GV); |
| 2072 | } |
| 2073 | else |
| 2074 | GV = CreateMetadataVar(Name, Init, Section, 4, true); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2075 | DefinedClasses.push_back(GV); |
| 2076 | } |
| 2077 | |
| 2078 | llvm::Constant *CGObjCMac::EmitMetaClass(const ObjCImplementationDecl *ID, |
| 2079 | llvm::Constant *Protocols, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2080 | const ConstantVector &Methods) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2081 | unsigned Flags = eClassFlags_Meta; |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2082 | unsigned Size = CGM.getTargetData().getTypeAllocSize(ObjCTypes.ClassTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2083 | |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 2084 | if (CGM.getDeclVisibilityMode(ID->getClassInterface()) == LangOptions::Hidden) |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2085 | Flags |= eClassFlags_Hidden; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2086 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2087 | std::vector<llvm::Constant*> Values(12); |
| 2088 | // The isa for the metaclass is the root of the hierarchy. |
| 2089 | const ObjCInterfaceDecl *Root = ID->getClassInterface(); |
| 2090 | while (const ObjCInterfaceDecl *Super = Root->getSuperClass()) |
| 2091 | Root = Super; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2092 | Values[ 0] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2093 | llvm::ConstantExpr::getBitCast(GetClassName(Root->getIdentifier()), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2094 | ObjCTypes.ClassPtrTy); |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2095 | // The super class for the metaclass is emitted as the name of the |
| 2096 | // super class. The runtime fixes this up to point to the |
| 2097 | // *metaclass* for the super class. |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2098 | if (ObjCInterfaceDecl *Super = ID->getClassInterface()->getSuperClass()) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2099 | Values[ 1] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2100 | llvm::ConstantExpr::getBitCast(GetClassName(Super->getIdentifier()), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2101 | ObjCTypes.ClassPtrTy); |
| 2102 | } else { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2103 | Values[ 1] = llvm::Constant::getNullValue(ObjCTypes.ClassPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2104 | } |
| 2105 | Values[ 2] = GetClassName(ID->getIdentifier()); |
| 2106 | // Version is always 0. |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2107 | Values[ 3] = llvm::ConstantInt::get(ObjCTypes.LongTy, 0); |
| 2108 | Values[ 4] = llvm::ConstantInt::get(ObjCTypes.LongTy, Flags); |
| 2109 | Values[ 5] = llvm::ConstantInt::get(ObjCTypes.LongTy, Size); |
Fariborz Jahanian | 46b86c6 | 2009-01-28 19:12:34 +0000 | [diff] [blame] | 2110 | Values[ 6] = EmitIvarList(ID, true); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2111 | Values[ 7] = |
Chris Lattner | d9d22dd | 2008-11-24 05:29:24 +0000 | [diff] [blame] | 2112 | EmitMethodList("\01L_OBJC_CLASS_METHODS_" + ID->getNameAsString(), |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2113 | "__OBJC,__cls_meth,regular,no_dead_strip", |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2114 | Methods); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2115 | // cache is always NULL. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2116 | Values[ 8] = llvm::Constant::getNullValue(ObjCTypes.CachePtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2117 | Values[ 9] = Protocols; |
| 2118 | // ivar_layout for metaclass is always NULL. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2119 | Values[10] = llvm::Constant::getNullValue(ObjCTypes.Int8PtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2120 | // The class extension is always unused for metaclasses. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2121 | Values[11] = llvm::Constant::getNullValue(ObjCTypes.ClassExtensionPtrTy); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2122 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ClassTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2123 | Values); |
| 2124 | |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2125 | std::string Name("\01L_OBJC_METACLASS_"); |
Chris Lattner | 8ec03f5 | 2008-11-24 03:54:41 +0000 | [diff] [blame] | 2126 | Name += ID->getNameAsCString(); |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2127 | |
| 2128 | // Check for a forward reference. |
| 2129 | llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name); |
| 2130 | if (GV) { |
| 2131 | assert(GV->getType()->getElementType() == ObjCTypes.ClassTy && |
| 2132 | "Forward metaclass reference has incorrect type."); |
| 2133 | GV->setLinkage(llvm::GlobalValue::InternalLinkage); |
| 2134 | GV->setInitializer(Init); |
| 2135 | } else { |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 2136 | GV = new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassTy, false, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2137 | llvm::GlobalValue::InternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 2138 | Init, Name); |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2139 | } |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2140 | GV->setSection("__OBJC,__meta_class,regular,no_dead_strip"); |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 2141 | GV->setAlignment(4); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 2142 | CGM.AddUsedGlobal(GV); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2143 | |
| 2144 | return GV; |
| 2145 | } |
| 2146 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2147 | llvm::Constant *CGObjCMac::EmitMetaClassRef(const ObjCInterfaceDecl *ID) { |
Chris Lattner | d9d22dd | 2008-11-24 05:29:24 +0000 | [diff] [blame] | 2148 | std::string Name = "\01L_OBJC_METACLASS_" + ID->getNameAsString(); |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2149 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 2150 | // FIXME: Should we look these up somewhere other than the module. Its a bit |
| 2151 | // silly since we only generate these while processing an implementation, so |
| 2152 | // exactly one pointer would work if know when we entered/exitted an |
| 2153 | // implementation block. |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2154 | |
| 2155 | // Check for an existing forward reference. |
Fariborz Jahanian | b0d2794 | 2009-01-07 20:11:22 +0000 | [diff] [blame] | 2156 | // Previously, metaclass with internal linkage may have been defined. |
| 2157 | // pass 'true' as 2nd argument so it is returned. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2158 | if (llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name, |
| 2159 | true)) { |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2160 | assert(GV->getType()->getElementType() == ObjCTypes.ClassTy && |
| 2161 | "Forward metaclass reference has incorrect type."); |
| 2162 | return GV; |
| 2163 | } else { |
| 2164 | // Generate as an external reference to keep a consistent |
| 2165 | // module. This will be patched up when we emit the metaclass. |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 2166 | return new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassTy, false, |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2167 | llvm::GlobalValue::ExternalLinkage, |
| 2168 | 0, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 2169 | Name); |
Daniel Dunbar | f56f191 | 2008-08-25 08:19:24 +0000 | [diff] [blame] | 2170 | } |
| 2171 | } |
| 2172 | |
Fariborz Jahanian | b0069ee | 2009-11-12 20:14:24 +0000 | [diff] [blame^] | 2173 | llvm::Value *CGObjCMac::EmitSuperClassRef(const ObjCInterfaceDecl *ID) { |
| 2174 | std::string Name = "\01L_OBJC_CLASS_" + ID->getNameAsString(); |
| 2175 | |
| 2176 | if (llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name, |
| 2177 | true)) { |
| 2178 | assert(GV->getType()->getElementType() == ObjCTypes.ClassTy && |
| 2179 | "Forward class metadata reference has incorrect type."); |
| 2180 | return GV; |
| 2181 | } else { |
| 2182 | return new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassTy, false, |
| 2183 | llvm::GlobalValue::ExternalLinkage, |
| 2184 | 0, |
| 2185 | Name); |
| 2186 | } |
| 2187 | } |
| 2188 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2189 | /* |
| 2190 | struct objc_class_ext { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2191 | uint32_t size; |
| 2192 | const char *weak_ivar_layout; |
| 2193 | struct _objc_property_list *properties; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2194 | }; |
| 2195 | */ |
| 2196 | llvm::Constant * |
| 2197 | CGObjCMac::EmitClassExtension(const ObjCImplementationDecl *ID) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2198 | uint64_t Size = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2199 | CGM.getTargetData().getTypeAllocSize(ObjCTypes.ClassExtensionTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2200 | |
| 2201 | std::vector<llvm::Constant*> Values(3); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2202 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Fariborz Jahanian | c71303d | 2009-04-22 23:00:43 +0000 | [diff] [blame] | 2203 | Values[1] = BuildIvarLayout(ID, false); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2204 | Values[2] = EmitPropertyList("\01l_OBJC_$_PROP_LIST_" + ID->getName(), |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 2205 | ID, ID->getClassInterface(), ObjCTypes); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2206 | |
| 2207 | // Return null if no extension bits are used. |
| 2208 | if (Values[1]->isNullValue() && Values[2]->isNullValue()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2209 | return llvm::Constant::getNullValue(ObjCTypes.ClassExtensionPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2210 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2211 | llvm::Constant *Init = |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2212 | llvm::ConstantStruct::get(ObjCTypes.ClassExtensionTy, Values); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2213 | return CreateMetadataVar("\01L_OBJC_CLASSEXT_" + ID->getName(), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2214 | Init, "__OBJC,__class_ext,regular,no_dead_strip", |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2215 | 4, true); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2216 | } |
| 2217 | |
| 2218 | /* |
| 2219 | struct objc_ivar { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2220 | char *ivar_name; |
| 2221 | char *ivar_type; |
| 2222 | int ivar_offset; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2223 | }; |
| 2224 | |
| 2225 | struct objc_ivar_list { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2226 | int ivar_count; |
| 2227 | struct objc_ivar list[count]; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2228 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2229 | */ |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2230 | llvm::Constant *CGObjCMac::EmitIvarList(const ObjCImplementationDecl *ID, |
Fariborz Jahanian | 46b86c6 | 2009-01-28 19:12:34 +0000 | [diff] [blame] | 2231 | bool ForClass) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2232 | std::vector<llvm::Constant*> Ivars, Ivar(3); |
| 2233 | |
| 2234 | // When emitting the root class GCC emits ivar entries for the |
| 2235 | // actual class structure. It is not clear if we need to follow this |
| 2236 | // behavior; for now lets try and get away with not doing it. If so, |
| 2237 | // the cleanest solution would be to make up an ObjCInterfaceDecl |
| 2238 | // for the class. |
| 2239 | if (ForClass) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2240 | return llvm::Constant::getNullValue(ObjCTypes.IvarListPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2241 | |
| 2242 | ObjCInterfaceDecl *OID = |
Fariborz Jahanian | 46b86c6 | 2009-01-28 19:12:34 +0000 | [diff] [blame] | 2243 | const_cast<ObjCInterfaceDecl*>(ID->getClassInterface()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2244 | |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 2245 | llvm::SmallVector<ObjCIvarDecl*, 16> OIvars; |
Fariborz Jahanian | 8e6ac1d | 2009-06-04 01:19:09 +0000 | [diff] [blame] | 2246 | CGM.getContext().ShallowCollectObjCIvars(OID, OIvars); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2247 | |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 2248 | for (unsigned i = 0, e = OIvars.size(); i != e; ++i) { |
| 2249 | ObjCIvarDecl *IVD = OIvars[i]; |
Fariborz Jahanian | 8e6ac1d | 2009-06-04 01:19:09 +0000 | [diff] [blame] | 2250 | // Ignore unnamed bit-fields. |
| 2251 | if (!IVD->getDeclName()) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2252 | continue; |
Daniel Dunbar | 3fea0c0 | 2009-04-22 08:22:17 +0000 | [diff] [blame] | 2253 | Ivar[0] = GetMethodVarName(IVD->getIdentifier()); |
| 2254 | Ivar[1] = GetMethodVarType(IVD); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2255 | Ivar[2] = llvm::ConstantInt::get(ObjCTypes.IntTy, |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 2256 | ComputeIvarBaseOffset(CGM, OID, IVD)); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2257 | Ivars.push_back(llvm::ConstantStruct::get(ObjCTypes.IvarTy, Ivar)); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2258 | } |
| 2259 | |
| 2260 | // Return null for empty list. |
| 2261 | if (Ivars.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2262 | return llvm::Constant::getNullValue(ObjCTypes.IvarListPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2263 | |
| 2264 | std::vector<llvm::Constant*> Values(2); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2265 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Ivars.size()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 2266 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.IvarTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2267 | Ivars.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 2268 | Values[1] = llvm::ConstantArray::get(AT, Ivars); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 2269 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2270 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2271 | llvm::GlobalVariable *GV; |
| 2272 | if (ForClass) |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2273 | GV = CreateMetadataVar("\01L_OBJC_CLASS_VARIABLES_" + ID->getName(), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2274 | Init, "__OBJC,__class_vars,regular,no_dead_strip", |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 2275 | 4, true); |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2276 | else |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2277 | GV = CreateMetadataVar("\01L_OBJC_INSTANCE_VARIABLES_" + ID->getName(), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2278 | Init, "__OBJC,__instance_vars,regular,no_dead_strip", |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2279 | 4, true); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2280 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.IvarListPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2281 | } |
| 2282 | |
| 2283 | /* |
| 2284 | struct objc_method { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2285 | SEL method_name; |
| 2286 | char *method_types; |
| 2287 | void *method; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2288 | }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2289 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2290 | struct objc_method_list { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2291 | struct objc_method_list *obsolete; |
| 2292 | int count; |
| 2293 | struct objc_method methods_list[count]; |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2294 | }; |
| 2295 | */ |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2296 | |
| 2297 | /// GetMethodConstant - Return a struct objc_method constant for the |
| 2298 | /// given method if it has been defined. The result is null if the |
| 2299 | /// method has not been defined. The return value has type MethodPtrTy. |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2300 | llvm::Constant *CGObjCMac::GetMethodConstant(const ObjCMethodDecl *MD) { |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2301 | // FIXME: Use DenseMap::lookup |
| 2302 | llvm::Function *Fn = MethodDefinitions[MD]; |
| 2303 | if (!Fn) |
| 2304 | return 0; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2305 | |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2306 | std::vector<llvm::Constant*> Method(3); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2307 | Method[0] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2308 | llvm::ConstantExpr::getBitCast(GetMethodVarName(MD->getSelector()), |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2309 | ObjCTypes.SelectorPtrTy); |
| 2310 | Method[1] = GetMethodVarType(MD); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2311 | Method[2] = llvm::ConstantExpr::getBitCast(Fn, ObjCTypes.Int8PtrTy); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2312 | return llvm::ConstantStruct::get(ObjCTypes.MethodTy, Method); |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2313 | } |
| 2314 | |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2315 | llvm::Constant *CGObjCMac::EmitMethodList(llvm::Twine Name, |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2316 | const char *Section, |
Daniel Dunbar | ae226fa | 2008-08-27 02:31:56 +0000 | [diff] [blame] | 2317 | const ConstantVector &Methods) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2318 | // Return null for empty list. |
| 2319 | if (Methods.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2320 | return llvm::Constant::getNullValue(ObjCTypes.MethodListPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2321 | |
| 2322 | std::vector<llvm::Constant*> Values(3); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2323 | Values[0] = llvm::Constant::getNullValue(ObjCTypes.Int8PtrTy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2324 | Values[1] = llvm::ConstantInt::get(ObjCTypes.IntTy, Methods.size()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 2325 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.MethodTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2326 | Methods.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 2327 | Values[2] = llvm::ConstantArray::get(AT, Methods); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 2328 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2329 | |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2330 | llvm::GlobalVariable *GV = CreateMetadataVar(Name, Init, Section, 4, true); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2331 | return llvm::ConstantExpr::getBitCast(GV, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2332 | ObjCTypes.MethodListPtrTy); |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2333 | } |
| 2334 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 2335 | llvm::Function *CGObjCCommonMac::GenerateMethod(const ObjCMethodDecl *OMD, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2336 | const ObjCContainerDecl *CD) { |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 2337 | llvm::SmallString<256> Name; |
Fariborz Jahanian | 679a502 | 2009-01-10 21:06:09 +0000 | [diff] [blame] | 2338 | GetNameForMethod(OMD, CD, Name); |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2339 | |
Daniel Dunbar | 541b63b | 2009-02-02 23:23:47 +0000 | [diff] [blame] | 2340 | CodeGenTypes &Types = CGM.getTypes(); |
Daniel Dunbar | 45c25ba | 2008-09-10 04:01:49 +0000 | [diff] [blame] | 2341 | const llvm::FunctionType *MethodTy = |
Daniel Dunbar | 541b63b | 2009-02-02 23:23:47 +0000 | [diff] [blame] | 2342 | Types.GetFunctionType(Types.getFunctionInfo(OMD), OMD->isVariadic()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2343 | llvm::Function *Method = |
Daniel Dunbar | 45c25ba | 2008-09-10 04:01:49 +0000 | [diff] [blame] | 2344 | llvm::Function::Create(MethodTy, |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2345 | llvm::GlobalValue::InternalLinkage, |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 2346 | Name.str(), |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2347 | &CGM.getModule()); |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 2348 | MethodDefinitions.insert(std::make_pair(OMD, Method)); |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2349 | |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 2350 | return Method; |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 2351 | } |
| 2352 | |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 2353 | llvm::GlobalVariable * |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 2354 | CGObjCCommonMac::CreateMetadataVar(llvm::Twine Name, |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 2355 | llvm::Constant *Init, |
| 2356 | const char *Section, |
Daniel Dunbar | 35bd763 | 2009-03-09 20:50:13 +0000 | [diff] [blame] | 2357 | unsigned Align, |
| 2358 | bool AddToUsed) { |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 2359 | const llvm::Type *Ty = Init->getType(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2360 | llvm::GlobalVariable *GV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 2361 | new llvm::GlobalVariable(CGM.getModule(), Ty, false, |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 2362 | llvm::GlobalValue::InternalLinkage, Init, Name); |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 2363 | if (Section) |
| 2364 | GV->setSection(Section); |
Daniel Dunbar | 35bd763 | 2009-03-09 20:50:13 +0000 | [diff] [blame] | 2365 | if (Align) |
| 2366 | GV->setAlignment(Align); |
| 2367 | if (AddToUsed) |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 2368 | CGM.AddUsedGlobal(GV); |
Daniel Dunbar | fd65d37 | 2009-03-09 20:09:19 +0000 | [diff] [blame] | 2369 | return GV; |
| 2370 | } |
| 2371 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2372 | llvm::Function *CGObjCMac::ModuleInitFunction() { |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 2373 | // Abuse this interface function as a place to finalize. |
| 2374 | FinishModule(); |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 2375 | return NULL; |
| 2376 | } |
| 2377 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 2378 | llvm::Constant *CGObjCMac::GetPropertyGetFunction() { |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 2379 | return ObjCTypes.getGetPropertyFn(); |
Daniel Dunbar | 49f6602 | 2008-09-24 03:38:44 +0000 | [diff] [blame] | 2380 | } |
| 2381 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 2382 | llvm::Constant *CGObjCMac::GetPropertySetFunction() { |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 2383 | return ObjCTypes.getSetPropertyFn(); |
Daniel Dunbar | 49f6602 | 2008-09-24 03:38:44 +0000 | [diff] [blame] | 2384 | } |
| 2385 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 2386 | llvm::Constant *CGObjCMac::EnumerationMutationFunction() { |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 2387 | return ObjCTypes.getEnumerationMutationFn(); |
Anders Carlsson | 2abd89c | 2008-08-31 04:05:03 +0000 | [diff] [blame] | 2388 | } |
| 2389 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2390 | /* |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2391 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2392 | Objective-C setjmp-longjmp (sjlj) Exception Handling |
| 2393 | -- |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2394 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2395 | The basic framework for a @try-catch-finally is as follows: |
| 2396 | { |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2397 | objc_exception_data d; |
| 2398 | id _rethrow = null; |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2399 | bool _call_try_exit = true; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2400 | |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2401 | objc_exception_try_enter(&d); |
| 2402 | if (!setjmp(d.jmp_buf)) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2403 | ... try body ... |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2404 | } else { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2405 | // exception path |
| 2406 | id _caught = objc_exception_extract(&d); |
| 2407 | |
| 2408 | // enter new try scope for handlers |
| 2409 | if (!setjmp(d.jmp_buf)) { |
| 2410 | ... match exception and execute catch blocks ... |
| 2411 | |
| 2412 | // fell off end, rethrow. |
| 2413 | _rethrow = _caught; |
| 2414 | ... jump-through-finally to finally_rethrow ... |
| 2415 | } else { |
| 2416 | // exception in catch block |
| 2417 | _rethrow = objc_exception_extract(&d); |
| 2418 | _call_try_exit = false; |
| 2419 | ... jump-through-finally to finally_rethrow ... |
| 2420 | } |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2421 | } |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2422 | ... jump-through-finally to finally_end ... |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2423 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2424 | finally: |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2425 | if (_call_try_exit) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2426 | objc_exception_try_exit(&d); |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2427 | |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2428 | ... finally block .... |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2429 | ... dispatch to finally destination ... |
| 2430 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2431 | finally_rethrow: |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2432 | objc_exception_throw(_rethrow); |
| 2433 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2434 | finally_end: |
| 2435 | } |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2436 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2437 | This framework differs slightly from the one gcc uses, in that gcc |
| 2438 | uses _rethrow to determine if objc_exception_try_exit should be called |
| 2439 | and if the object should be rethrown. This breaks in the face of |
| 2440 | throwing nil and introduces unnecessary branches. |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2441 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2442 | We specialize this framework for a few particular circumstances: |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2443 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2444 | - If there are no catch blocks, then we avoid emitting the second |
| 2445 | exception handling context. |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2446 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2447 | - If there is a catch-all catch block (i.e. @catch(...) or @catch(id |
| 2448 | e)) we avoid emitting the code to rethrow an uncaught exception. |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2449 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2450 | - FIXME: If there is no @finally block we can do a few more |
| 2451 | simplifications. |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2452 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2453 | Rethrows and Jumps-Through-Finally |
| 2454 | -- |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2455 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2456 | Support for implicit rethrows and jumping through the finally block is |
| 2457 | handled by storing the current exception-handling context in |
| 2458 | ObjCEHStack. |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2459 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2460 | In order to implement proper @finally semantics, we support one basic |
| 2461 | mechanism for jumping through the finally block to an arbitrary |
| 2462 | destination. Constructs which generate exits from a @try or @catch |
| 2463 | block use this mechanism to implement the proper semantics by chaining |
| 2464 | jumps, as necessary. |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2465 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2466 | This mechanism works like the one used for indirect goto: we |
| 2467 | arbitrarily assign an ID to each destination and store the ID for the |
| 2468 | destination in a variable prior to entering the finally block. At the |
| 2469 | end of the finally block we simply create a switch to the proper |
| 2470 | destination. |
| 2471 | |
| 2472 | Code gen for @synchronized(expr) stmt; |
| 2473 | Effectively generating code for: |
| 2474 | objc_sync_enter(expr); |
| 2475 | @try stmt @finally { objc_sync_exit(expr); } |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2476 | */ |
| 2477 | |
Fariborz Jahanian | bd71be4 | 2008-11-21 00:49:24 +0000 | [diff] [blame] | 2478 | void CGObjCMac::EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, |
| 2479 | const Stmt &S) { |
| 2480 | bool isTry = isa<ObjCAtTryStmt>(S); |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2481 | // Create various blocks we refer to for handling @finally. |
Daniel Dunbar | 55e8742 | 2008-11-11 02:29:29 +0000 | [diff] [blame] | 2482 | llvm::BasicBlock *FinallyBlock = CGF.createBasicBlock("finally"); |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2483 | llvm::BasicBlock *FinallyExit = CGF.createBasicBlock("finally.exit"); |
Daniel Dunbar | 55e8742 | 2008-11-11 02:29:29 +0000 | [diff] [blame] | 2484 | llvm::BasicBlock *FinallyNoExit = CGF.createBasicBlock("finally.noexit"); |
| 2485 | llvm::BasicBlock *FinallyRethrow = CGF.createBasicBlock("finally.throw"); |
| 2486 | llvm::BasicBlock *FinallyEnd = CGF.createBasicBlock("finally.end"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2487 | |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 2488 | // For @synchronized, call objc_sync_enter(sync.expr). The |
| 2489 | // evaluation of the expression must occur before we enter the |
| 2490 | // @synchronized. We can safely avoid a temp here because jumps into |
| 2491 | // @synchronized are illegal & this will dominate uses. |
| 2492 | llvm::Value *SyncArg = 0; |
| 2493 | if (!isTry) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2494 | SyncArg = |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 2495 | CGF.EmitScalarExpr(cast<ObjCAtSynchronizedStmt>(S).getSynchExpr()); |
| 2496 | SyncArg = CGF.Builder.CreateBitCast(SyncArg, ObjCTypes.ObjectPtrTy); |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 2497 | CGF.Builder.CreateCall(ObjCTypes.getSyncEnterFn(), SyncArg); |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 2498 | } |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2499 | |
| 2500 | // Push an EH context entry, used for handling rethrows and jumps |
| 2501 | // through finally. |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 2502 | CGF.PushCleanupBlock(FinallyBlock); |
| 2503 | |
Anders Carlsson | 273558f | 2009-02-07 21:37:21 +0000 | [diff] [blame] | 2504 | CGF.ObjCEHValueStack.push_back(0); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2505 | |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2506 | // Allocate memory for the exception data and rethrow pointer. |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2507 | llvm::Value *ExceptionData = CGF.CreateTempAlloca(ObjCTypes.ExceptionDataTy, |
| 2508 | "exceptiondata.ptr"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2509 | llvm::Value *RethrowPtr = CGF.CreateTempAlloca(ObjCTypes.ObjectPtrTy, |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 2510 | "_rethrow"); |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 2511 | llvm::Value *CallTryExitPtr = CGF.CreateTempAlloca( |
| 2512 | llvm::Type::getInt1Ty(VMContext), |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2513 | "_call_try_exit"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2514 | CGF.Builder.CreateStore(llvm::ConstantInt::getTrue(VMContext), |
| 2515 | CallTryExitPtr); |
| 2516 | |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2517 | // Enter a new try block and call setjmp. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 2518 | CGF.Builder.CreateCall(ObjCTypes.getExceptionTryEnterFn(), ExceptionData); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2519 | llvm::Value *JmpBufPtr = CGF.Builder.CreateStructGEP(ExceptionData, 0, |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2520 | "jmpbufarray"); |
| 2521 | JmpBufPtr = CGF.Builder.CreateStructGEP(JmpBufPtr, 0, "tmp"); |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 2522 | llvm::Value *SetJmpResult = CGF.Builder.CreateCall(ObjCTypes.getSetJmpFn(), |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2523 | JmpBufPtr, "result"); |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2524 | |
Daniel Dunbar | 55e8742 | 2008-11-11 02:29:29 +0000 | [diff] [blame] | 2525 | llvm::BasicBlock *TryBlock = CGF.createBasicBlock("try"); |
| 2526 | llvm::BasicBlock *TryHandler = CGF.createBasicBlock("try.handler"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2527 | CGF.Builder.CreateCondBr(CGF.Builder.CreateIsNotNull(SetJmpResult, "threw"), |
Daniel Dunbar | e4b5ee0 | 2008-09-27 23:30:04 +0000 | [diff] [blame] | 2528 | TryHandler, TryBlock); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2529 | |
| 2530 | // Emit the @try block. |
| 2531 | CGF.EmitBlock(TryBlock); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2532 | CGF.EmitStmt(isTry ? cast<ObjCAtTryStmt>(S).getTryBody() |
| 2533 | : cast<ObjCAtSynchronizedStmt>(S).getSynchBody()); |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 2534 | CGF.EmitBranchThroughCleanup(FinallyEnd); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2535 | |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2536 | // Emit the "exception in @try" block. |
Daniel Dunbar | e4b5ee0 | 2008-09-27 23:30:04 +0000 | [diff] [blame] | 2537 | CGF.EmitBlock(TryHandler); |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 2538 | |
| 2539 | // Retrieve the exception object. We may emit multiple blocks but |
| 2540 | // nothing can cross this so the value is already in SSA form. |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 2541 | llvm::Value *Caught = |
| 2542 | CGF.Builder.CreateCall(ObjCTypes.getExceptionExtractFn(), |
| 2543 | ExceptionData, "caught"); |
Anders Carlsson | 273558f | 2009-02-07 21:37:21 +0000 | [diff] [blame] | 2544 | CGF.ObjCEHValueStack.back() = Caught; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2545 | if (!isTry) { |
Fariborz Jahanian | bd71be4 | 2008-11-21 00:49:24 +0000 | [diff] [blame] | 2546 | CGF.Builder.CreateStore(Caught, RethrowPtr); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2547 | CGF.Builder.CreateStore(llvm::ConstantInt::getFalse(VMContext), |
| 2548 | CallTryExitPtr); |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 2549 | CGF.EmitBranchThroughCleanup(FinallyRethrow); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2550 | } else if (const ObjCAtCatchStmt* CatchStmt = |
| 2551 | cast<ObjCAtTryStmt>(S).getCatchStmts()) { |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 2552 | // Enter a new exception try block (in case a @catch block throws |
| 2553 | // an exception). |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 2554 | CGF.Builder.CreateCall(ObjCTypes.getExceptionTryEnterFn(), ExceptionData); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2555 | |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 2556 | llvm::Value *SetJmpResult = CGF.Builder.CreateCall(ObjCTypes.getSetJmpFn(), |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2557 | JmpBufPtr, "result"); |
Daniel Dunbar | 91cd320 | 2008-10-02 17:05:36 +0000 | [diff] [blame] | 2558 | llvm::Value *Threw = CGF.Builder.CreateIsNotNull(SetJmpResult, "threw"); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2559 | |
Daniel Dunbar | 55e8742 | 2008-11-11 02:29:29 +0000 | [diff] [blame] | 2560 | llvm::BasicBlock *CatchBlock = CGF.createBasicBlock("catch"); |
| 2561 | llvm::BasicBlock *CatchHandler = CGF.createBasicBlock("catch.handler"); |
Daniel Dunbar | e4b5ee0 | 2008-09-27 23:30:04 +0000 | [diff] [blame] | 2562 | CGF.Builder.CreateCondBr(Threw, CatchHandler, CatchBlock); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2563 | |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2564 | CGF.EmitBlock(CatchBlock); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2565 | |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 2566 | // Handle catch list. As a special case we check if everything is |
| 2567 | // matched and avoid generating code for falling off the end if |
| 2568 | // so. |
| 2569 | bool AllMatched = false; |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2570 | for (; CatchStmt; CatchStmt = CatchStmt->getNextCatchStmt()) { |
Daniel Dunbar | 55e8742 | 2008-11-11 02:29:29 +0000 | [diff] [blame] | 2571 | llvm::BasicBlock *NextCatchBlock = CGF.createBasicBlock("catch"); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2572 | |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 2573 | const ParmVarDecl *CatchParam = CatchStmt->getCatchParamDecl(); |
Steve Naroff | 14108da | 2009-07-10 23:34:53 +0000 | [diff] [blame] | 2574 | const ObjCObjectPointerType *OPT = 0; |
Daniel Dunbar | 129271a | 2008-09-27 07:36:24 +0000 | [diff] [blame] | 2575 | |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2576 | // catch(...) always matches. |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 2577 | if (!CatchParam) { |
| 2578 | AllMatched = true; |
| 2579 | } else { |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 2580 | OPT = CatchParam->getType()->getAs<ObjCObjectPointerType>(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2581 | |
| 2582 | // catch(id e) always matches. |
Daniel Dunbar | 97f61d1 | 2008-09-27 22:21:14 +0000 | [diff] [blame] | 2583 | // FIXME: For the time being we also match id<X>; this should |
| 2584 | // be rejected by Sema instead. |
Eli Friedman | 818e96f | 2009-07-11 00:57:02 +0000 | [diff] [blame] | 2585 | if (OPT && (OPT->isObjCIdType() || OPT->isObjCQualifiedIdType())) |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 2586 | AllMatched = true; |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2587 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2588 | |
| 2589 | if (AllMatched) { |
Anders Carlsson | dde0a94 | 2008-09-11 09:15:33 +0000 | [diff] [blame] | 2590 | if (CatchParam) { |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 2591 | CGF.EmitLocalBlockVarDecl(*CatchParam); |
Daniel Dunbar | a448fb2 | 2008-11-11 23:11:34 +0000 | [diff] [blame] | 2592 | assert(CGF.HaveInsertPoint() && "DeclStmt destroyed insert point?"); |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 2593 | CGF.Builder.CreateStore(Caught, CGF.GetAddrOfLocalVar(CatchParam)); |
Anders Carlsson | dde0a94 | 2008-09-11 09:15:33 +0000 | [diff] [blame] | 2594 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2595 | |
Anders Carlsson | dde0a94 | 2008-09-11 09:15:33 +0000 | [diff] [blame] | 2596 | CGF.EmitStmt(CatchStmt->getCatchBody()); |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 2597 | CGF.EmitBranchThroughCleanup(FinallyEnd); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2598 | break; |
| 2599 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2600 | |
Steve Naroff | 14108da | 2009-07-10 23:34:53 +0000 | [diff] [blame] | 2601 | assert(OPT && "Unexpected non-object pointer type in @catch"); |
| 2602 | QualType T = OPT->getPointeeType(); |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 2603 | const ObjCInterfaceType *ObjCType = T->getAs<ObjCInterfaceType>(); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2604 | assert(ObjCType && "Catch parameter must have Objective-C type!"); |
| 2605 | |
| 2606 | // Check if the @catch block matches the exception object. |
| 2607 | llvm::Value *Class = EmitClassRef(CGF.Builder, ObjCType->getDecl()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2608 | |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 2609 | llvm::Value *Match = |
| 2610 | CGF.Builder.CreateCall2(ObjCTypes.getExceptionMatchFn(), |
| 2611 | Class, Caught, "match"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2612 | |
Daniel Dunbar | 55e8742 | 2008-11-11 02:29:29 +0000 | [diff] [blame] | 2613 | llvm::BasicBlock *MatchedBlock = CGF.createBasicBlock("matched"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2614 | |
| 2615 | CGF.Builder.CreateCondBr(CGF.Builder.CreateIsNotNull(Match, "matched"), |
Daniel Dunbar | e4b5ee0 | 2008-09-27 23:30:04 +0000 | [diff] [blame] | 2616 | MatchedBlock, NextCatchBlock); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2617 | |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2618 | // Emit the @catch block. |
| 2619 | CGF.EmitBlock(MatchedBlock); |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 2620 | CGF.EmitLocalBlockVarDecl(*CatchParam); |
Daniel Dunbar | a448fb2 | 2008-11-11 23:11:34 +0000 | [diff] [blame] | 2621 | assert(CGF.HaveInsertPoint() && "DeclStmt destroyed insert point?"); |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2622 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2623 | llvm::Value *Tmp = |
| 2624 | CGF.Builder.CreateBitCast(Caught, |
| 2625 | CGF.ConvertType(CatchParam->getType()), |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2626 | "tmp"); |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 2627 | CGF.Builder.CreateStore(Tmp, CGF.GetAddrOfLocalVar(CatchParam)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2628 | |
Anders Carlsson | dde0a94 | 2008-09-11 09:15:33 +0000 | [diff] [blame] | 2629 | CGF.EmitStmt(CatchStmt->getCatchBody()); |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 2630 | CGF.EmitBranchThroughCleanup(FinallyEnd); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2631 | |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2632 | CGF.EmitBlock(NextCatchBlock); |
| 2633 | } |
| 2634 | |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 2635 | if (!AllMatched) { |
| 2636 | // None of the handlers caught the exception, so store it to be |
| 2637 | // rethrown at the end of the @finally block. |
| 2638 | CGF.Builder.CreateStore(Caught, RethrowPtr); |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 2639 | CGF.EmitBranchThroughCleanup(FinallyRethrow); |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 2640 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2641 | |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 2642 | // Emit the exception handler for the @catch blocks. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2643 | CGF.EmitBlock(CatchHandler); |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 2644 | CGF.Builder.CreateStore( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2645 | CGF.Builder.CreateCall(ObjCTypes.getExceptionExtractFn(), |
| 2646 | ExceptionData), |
| 2647 | RethrowPtr); |
| 2648 | CGF.Builder.CreateStore(llvm::ConstantInt::getFalse(VMContext), |
| 2649 | CallTryExitPtr); |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 2650 | CGF.EmitBranchThroughCleanup(FinallyRethrow); |
Daniel Dunbar | 55e4072 | 2008-09-27 07:03:52 +0000 | [diff] [blame] | 2651 | } else { |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2652 | CGF.Builder.CreateStore(Caught, RethrowPtr); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2653 | CGF.Builder.CreateStore(llvm::ConstantInt::getFalse(VMContext), |
| 2654 | CallTryExitPtr); |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 2655 | CGF.EmitBranchThroughCleanup(FinallyRethrow); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2656 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2657 | |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2658 | // Pop the exception-handling stack entry. It is important to do |
| 2659 | // this now, because the code in the @finally block is not in this |
| 2660 | // context. |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 2661 | CodeGenFunction::CleanupBlockInfo Info = CGF.PopCleanupBlock(); |
| 2662 | |
Anders Carlsson | 273558f | 2009-02-07 21:37:21 +0000 | [diff] [blame] | 2663 | CGF.ObjCEHValueStack.pop_back(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2664 | |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2665 | // Emit the @finally block. |
| 2666 | CGF.EmitBlock(FinallyBlock); |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2667 | llvm::Value* CallTryExit = CGF.Builder.CreateLoad(CallTryExitPtr, "tmp"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2668 | |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2669 | CGF.Builder.CreateCondBr(CallTryExit, FinallyExit, FinallyNoExit); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2670 | |
Anders Carlsson | 190d00e | 2009-02-07 21:26:04 +0000 | [diff] [blame] | 2671 | CGF.EmitBlock(FinallyExit); |
Chris Lattner | 34b02a1 | 2009-04-22 02:26:14 +0000 | [diff] [blame] | 2672 | CGF.Builder.CreateCall(ObjCTypes.getExceptionTryExitFn(), ExceptionData); |
Daniel Dunbar | 129271a | 2008-09-27 07:36:24 +0000 | [diff] [blame] | 2673 | |
| 2674 | CGF.EmitBlock(FinallyNoExit); |
Fariborz Jahanian | bd71be4 | 2008-11-21 00:49:24 +0000 | [diff] [blame] | 2675 | if (isTry) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2676 | if (const ObjCAtFinallyStmt* FinallyStmt = |
| 2677 | cast<ObjCAtTryStmt>(S).getFinallyStmt()) |
Fariborz Jahanian | bd71be4 | 2008-11-21 00:49:24 +0000 | [diff] [blame] | 2678 | CGF.EmitStmt(FinallyStmt->getFinallyBody()); |
Daniel Dunbar | 1c56667 | 2009-02-24 01:43:46 +0000 | [diff] [blame] | 2679 | } else { |
| 2680 | // Emit objc_sync_exit(expr); as finally's sole statement for |
| 2681 | // @synchronized. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 2682 | CGF.Builder.CreateCall(ObjCTypes.getSyncExitFn(), SyncArg); |
Fariborz Jahanian | f2878e5 | 2008-11-21 19:21:53 +0000 | [diff] [blame] | 2683 | } |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2684 | |
Anders Carlsson | f3a79a9 | 2009-02-09 20:38:58 +0000 | [diff] [blame] | 2685 | // Emit the switch block |
| 2686 | if (Info.SwitchBlock) |
| 2687 | CGF.EmitBlock(Info.SwitchBlock); |
| 2688 | if (Info.EndBlock) |
| 2689 | CGF.EmitBlock(Info.EndBlock); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2690 | |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2691 | CGF.EmitBlock(FinallyRethrow); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2692 | CGF.Builder.CreateCall(ObjCTypes.getExceptionThrowFn(), |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2693 | CGF.Builder.CreateLoad(RethrowPtr)); |
Daniel Dunbar | e4b5ee0 | 2008-09-27 23:30:04 +0000 | [diff] [blame] | 2694 | CGF.Builder.CreateUnreachable(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2695 | |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2696 | CGF.EmitBlock(FinallyEnd); |
Anders Carlsson | 64d5d6c | 2008-09-09 10:04:29 +0000 | [diff] [blame] | 2697 | } |
| 2698 | |
| 2699 | void CGObjCMac::EmitThrowStmt(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 898d508 | 2008-09-30 01:06:03 +0000 | [diff] [blame] | 2700 | const ObjCAtThrowStmt &S) { |
Anders Carlsson | 2b1e311 | 2008-09-09 16:16:55 +0000 | [diff] [blame] | 2701 | llvm::Value *ExceptionAsObject; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2702 | |
Anders Carlsson | 2b1e311 | 2008-09-09 16:16:55 +0000 | [diff] [blame] | 2703 | if (const Expr *ThrowExpr = S.getThrowExpr()) { |
| 2704 | llvm::Value *Exception = CGF.EmitScalarExpr(ThrowExpr); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2705 | ExceptionAsObject = |
Anders Carlsson | 2b1e311 | 2008-09-09 16:16:55 +0000 | [diff] [blame] | 2706 | CGF.Builder.CreateBitCast(Exception, ObjCTypes.ObjectPtrTy, "tmp"); |
| 2707 | } else { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2708 | assert((!CGF.ObjCEHValueStack.empty() && CGF.ObjCEHValueStack.back()) && |
Daniel Dunbar | 18ccc77 | 2008-09-28 01:03:14 +0000 | [diff] [blame] | 2709 | "Unexpected rethrow outside @catch block."); |
Anders Carlsson | 273558f | 2009-02-07 21:37:21 +0000 | [diff] [blame] | 2710 | ExceptionAsObject = CGF.ObjCEHValueStack.back(); |
Anders Carlsson | 2b1e311 | 2008-09-09 16:16:55 +0000 | [diff] [blame] | 2711 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2712 | |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 2713 | CGF.Builder.CreateCall(ObjCTypes.getExceptionThrowFn(), ExceptionAsObject); |
Anders Carlsson | 80f2567 | 2008-09-09 17:59:25 +0000 | [diff] [blame] | 2714 | CGF.Builder.CreateUnreachable(); |
Daniel Dunbar | a448fb2 | 2008-11-11 23:11:34 +0000 | [diff] [blame] | 2715 | |
| 2716 | // Clear the insertion point to indicate we are in unreachable code. |
| 2717 | CGF.Builder.ClearInsertionPoint(); |
Anders Carlsson | 64d5d6c | 2008-09-09 10:04:29 +0000 | [diff] [blame] | 2718 | } |
| 2719 | |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 2720 | /// EmitObjCWeakRead - Code gen for loading value of a __weak |
Fariborz Jahanian | 6dc2317 | 2008-11-18 21:45:40 +0000 | [diff] [blame] | 2721 | /// object: objc_read_weak (id *src) |
| 2722 | /// |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 2723 | llvm::Value * CGObjCMac::EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2724 | llvm::Value *AddrWeakObj) { |
Eli Friedman | 8339b35 | 2009-03-07 03:57:15 +0000 | [diff] [blame] | 2725 | const llvm::Type* DestTy = |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2726 | cast<llvm::PointerType>(AddrWeakObj->getType())->getElementType(); |
| 2727 | AddrWeakObj = CGF.Builder.CreateBitCast(AddrWeakObj, |
| 2728 | ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 2729 | llvm::Value *read_weak = CGF.Builder.CreateCall(ObjCTypes.getGcReadWeakFn(), |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 2730 | AddrWeakObj, "weakread"); |
Eli Friedman | 8339b35 | 2009-03-07 03:57:15 +0000 | [diff] [blame] | 2731 | read_weak = CGF.Builder.CreateBitCast(read_weak, DestTy); |
Fariborz Jahanian | 6dc2317 | 2008-11-18 21:45:40 +0000 | [diff] [blame] | 2732 | return read_weak; |
| 2733 | } |
| 2734 | |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 2735 | /// EmitObjCWeakAssign - Code gen for assigning to a __weak object. |
| 2736 | /// objc_assign_weak (id src, id *dst) |
| 2737 | /// |
| 2738 | void CGObjCMac::EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2739 | llvm::Value *src, llvm::Value *dst) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 2740 | const llvm::Type * SrcTy = src->getType(); |
| 2741 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2742 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 2743 | assert(Size <= 8 && "does not support size > 8"); |
| 2744 | src = (Size == 4) ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2745 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongLongTy); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 2746 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 2747 | } |
Fariborz Jahanian | dbd32c2 | 2008-11-19 17:34:06 +0000 | [diff] [blame] | 2748 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 2749 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | 96508e1 | 2009-04-17 22:12:36 +0000 | [diff] [blame] | 2750 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignWeakFn(), |
Fariborz Jahanian | 3e283e3 | 2008-11-18 22:37:34 +0000 | [diff] [blame] | 2751 | src, dst, "weakassign"); |
| 2752 | return; |
| 2753 | } |
| 2754 | |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 2755 | /// EmitObjCGlobalAssign - Code gen for assigning to a __strong object. |
| 2756 | /// objc_assign_global (id src, id *dst) |
| 2757 | /// |
| 2758 | void CGObjCMac::EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2759 | llvm::Value *src, llvm::Value *dst) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 2760 | const llvm::Type * SrcTy = src->getType(); |
| 2761 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2762 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 2763 | assert(Size <= 8 && "does not support size > 8"); |
| 2764 | src = (Size == 4) ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2765 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongLongTy); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 2766 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 2767 | } |
Fariborz Jahanian | dbd32c2 | 2008-11-19 17:34:06 +0000 | [diff] [blame] | 2768 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 2769 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 2770 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignGlobalFn(), |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 2771 | src, dst, "globalassign"); |
| 2772 | return; |
| 2773 | } |
| 2774 | |
Fariborz Jahanian | 7eda836 | 2008-11-20 19:23:36 +0000 | [diff] [blame] | 2775 | /// EmitObjCIvarAssign - Code gen for assigning to a __strong object. |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 2776 | /// objc_assign_ivar (id src, id *dst, ptrdiff_t ivaroffset) |
Fariborz Jahanian | 7eda836 | 2008-11-20 19:23:36 +0000 | [diff] [blame] | 2777 | /// |
| 2778 | void CGObjCMac::EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 2779 | llvm::Value *src, llvm::Value *dst, |
| 2780 | llvm::Value *ivarOffset) { |
| 2781 | assert(ivarOffset && "EmitObjCIvarAssign - ivarOffset is NULL"); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 2782 | const llvm::Type * SrcTy = src->getType(); |
| 2783 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2784 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 2785 | assert(Size <= 8 && "does not support size > 8"); |
| 2786 | src = (Size == 4) ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2787 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongLongTy); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 2788 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 2789 | } |
Fariborz Jahanian | 7eda836 | 2008-11-20 19:23:36 +0000 | [diff] [blame] | 2790 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 2791 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 2792 | CGF.Builder.CreateCall3(ObjCTypes.getGcAssignIvarFn(), |
| 2793 | src, dst, ivarOffset); |
Fariborz Jahanian | 7eda836 | 2008-11-20 19:23:36 +0000 | [diff] [blame] | 2794 | return; |
| 2795 | } |
| 2796 | |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 2797 | /// EmitObjCStrongCastAssign - Code gen for assigning to a __strong cast object. |
| 2798 | /// objc_assign_strongCast (id src, id *dst) |
| 2799 | /// |
| 2800 | void CGObjCMac::EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 2801 | llvm::Value *src, llvm::Value *dst) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 2802 | const llvm::Type * SrcTy = src->getType(); |
| 2803 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2804 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 2805 | assert(Size <= 8 && "does not support size > 8"); |
| 2806 | src = (Size == 4) ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2807 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongLongTy); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 2808 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 2809 | } |
Fariborz Jahanian | dbd32c2 | 2008-11-19 17:34:06 +0000 | [diff] [blame] | 2810 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 2811 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 2812 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignStrongCastFn(), |
Fariborz Jahanian | 5862650 | 2008-11-19 00:59:10 +0000 | [diff] [blame] | 2813 | src, dst, "weakassign"); |
| 2814 | return; |
| 2815 | } |
| 2816 | |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 2817 | void CGObjCMac::EmitGCMemmoveCollectable(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2818 | llvm::Value *DestPtr, |
| 2819 | llvm::Value *SrcPtr, |
Fariborz Jahanian | 08c3213 | 2009-08-31 19:33:16 +0000 | [diff] [blame] | 2820 | QualType Ty) { |
| 2821 | // Get size info for this aggregate. |
| 2822 | std::pair<uint64_t, unsigned> TypeInfo = CGM.getContext().getTypeInfo(Ty); |
Fariborz Jahanian | 736d8a6 | 2009-09-10 16:20:31 +0000 | [diff] [blame] | 2823 | unsigned long size = TypeInfo.first/8; |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 2824 | SrcPtr = CGF.Builder.CreateBitCast(SrcPtr, ObjCTypes.Int8PtrTy); |
| 2825 | DestPtr = CGF.Builder.CreateBitCast(DestPtr, ObjCTypes.Int8PtrTy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2826 | llvm::Value *N = llvm::ConstantInt::get(ObjCTypes.LongTy, size); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 2827 | CGF.Builder.CreateCall3(ObjCTypes.GcMemmoveCollectableFn(), |
| 2828 | DestPtr, SrcPtr, N); |
| 2829 | return; |
| 2830 | } |
| 2831 | |
Fariborz Jahanian | 0bb2036 | 2009-02-02 20:02:29 +0000 | [diff] [blame] | 2832 | /// EmitObjCValueForIvar - Code Gen for ivar reference. |
| 2833 | /// |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 2834 | LValue CGObjCMac::EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF, |
| 2835 | QualType ObjectTy, |
| 2836 | llvm::Value *BaseValue, |
| 2837 | const ObjCIvarDecl *Ivar, |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 2838 | unsigned CVRQualifiers) { |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 2839 | const ObjCInterfaceDecl *ID = ObjectTy->getAs<ObjCInterfaceType>()->getDecl(); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 2840 | return EmitValueForIvarAtOffset(CGF, ID, BaseValue, Ivar, CVRQualifiers, |
| 2841 | EmitIvarOffset(CGF, ID, Ivar)); |
Fariborz Jahanian | 0bb2036 | 2009-02-02 20:02:29 +0000 | [diff] [blame] | 2842 | } |
| 2843 | |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 2844 | llvm::Value *CGObjCMac::EmitIvarOffset(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 2a03192 | 2009-04-22 05:08:15 +0000 | [diff] [blame] | 2845 | const ObjCInterfaceDecl *Interface, |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 2846 | const ObjCIvarDecl *Ivar) { |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 2847 | uint64_t Offset = ComputeIvarBaseOffset(CGM, Interface, Ivar); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2848 | return llvm::ConstantInt::get( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2849 | CGM.getTypes().ConvertType(CGM.getContext().LongTy), |
| 2850 | Offset); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 2851 | } |
| 2852 | |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 2853 | /* *** Private Interface *** */ |
| 2854 | |
| 2855 | /// EmitImageInfo - Emit the image info marker used to encode some module |
| 2856 | /// level information. |
| 2857 | /// |
| 2858 | /// See: <rdr://4810609&4810587&4810587> |
| 2859 | /// struct IMAGE_INFO { |
| 2860 | /// unsigned version; |
| 2861 | /// unsigned flags; |
| 2862 | /// }; |
| 2863 | enum ImageInfoFlags { |
Daniel Dunbar | c7c6dc0 | 2009-04-20 07:11:47 +0000 | [diff] [blame] | 2864 | eImageInfo_FixAndContinue = (1 << 0), // FIXME: Not sure what |
| 2865 | // this implies. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2866 | eImageInfo_GarbageCollected = (1 << 1), |
| 2867 | eImageInfo_GCOnly = (1 << 2), |
Daniel Dunbar | c7c6dc0 | 2009-04-20 07:11:47 +0000 | [diff] [blame] | 2868 | eImageInfo_OptimizedByDyld = (1 << 3), // FIXME: When is this set. |
| 2869 | |
| 2870 | // A flag indicating that the module has no instances of an |
| 2871 | // @synthesize of a superclass variable. <rdar://problem/6803242> |
| 2872 | eImageInfo_CorrectedSynthesize = (1 << 4) |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 2873 | }; |
| 2874 | |
| 2875 | void CGObjCMac::EmitImageInfo() { |
| 2876 | unsigned version = 0; // Version is unused? |
| 2877 | unsigned flags = 0; |
| 2878 | |
| 2879 | // FIXME: Fix and continue? |
| 2880 | if (CGM.getLangOptions().getGCMode() != LangOptions::NonGC) |
| 2881 | flags |= eImageInfo_GarbageCollected; |
| 2882 | if (CGM.getLangOptions().getGCMode() == LangOptions::GCOnly) |
| 2883 | flags |= eImageInfo_GCOnly; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2884 | |
Daniel Dunbar | c7c6dc0 | 2009-04-20 07:11:47 +0000 | [diff] [blame] | 2885 | // We never allow @synthesize of a superclass property. |
| 2886 | flags |= eImageInfo_CorrectedSynthesize; |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 2887 | |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 2888 | // Emitted as int[2]; |
| 2889 | llvm::Constant *values[2] = { |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 2890 | llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext), version), |
| 2891 | llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext), flags) |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 2892 | }; |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 2893 | llvm::ArrayType *AT = llvm::ArrayType::get(llvm::Type::getInt32Ty(VMContext), 2); |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2894 | |
| 2895 | const char *Section; |
| 2896 | if (ObjCABI == 1) |
| 2897 | Section = "__OBJC, __image_info,regular"; |
| 2898 | else |
| 2899 | Section = "__DATA, __objc_imageinfo, regular, no_dead_strip"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2900 | llvm::GlobalVariable *GV = |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2901 | CreateMetadataVar("\01L_OBJC_IMAGE_INFO", |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 2902 | llvm::ConstantArray::get(AT, values, 2), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2903 | Section, |
| 2904 | 0, |
| 2905 | true); |
| 2906 | GV->setConstant(true); |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 2907 | } |
| 2908 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 2909 | |
| 2910 | // struct objc_module { |
| 2911 | // unsigned long version; |
| 2912 | // unsigned long size; |
| 2913 | // const char *name; |
| 2914 | // Symtab symtab; |
| 2915 | // }; |
| 2916 | |
| 2917 | // FIXME: Get from somewhere |
| 2918 | static const int ModuleVersion = 7; |
| 2919 | |
| 2920 | void CGObjCMac::EmitModuleInfo() { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 2921 | uint64_t Size = CGM.getTargetData().getTypeAllocSize(ObjCTypes.ModuleTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2922 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 2923 | std::vector<llvm::Constant*> Values(4); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2924 | Values[0] = llvm::ConstantInt::get(ObjCTypes.LongTy, ModuleVersion); |
| 2925 | Values[1] = llvm::ConstantInt::get(ObjCTypes.LongTy, Size); |
Daniel Dunbar | 7ded7f4 | 2008-08-15 22:20:32 +0000 | [diff] [blame] | 2926 | // This used to be the filename, now it is unused. <rdr://4327263> |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 2927 | Values[2] = GetClassName(&CGM.getContext().Idents.get("")); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 2928 | Values[3] = EmitModuleSymbols(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2929 | CreateMetadataVar("\01L_OBJC_MODULES", |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 2930 | llvm::ConstantStruct::get(ObjCTypes.ModuleTy, Values), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2931 | "__OBJC,__module_info,regular,no_dead_strip", |
Daniel Dunbar | 58a2912 | 2009-03-09 22:18:41 +0000 | [diff] [blame] | 2932 | 4, true); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 2933 | } |
| 2934 | |
| 2935 | llvm::Constant *CGObjCMac::EmitModuleSymbols() { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2936 | unsigned NumClasses = DefinedClasses.size(); |
| 2937 | unsigned NumCategories = DefinedCategories.size(); |
| 2938 | |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 2939 | // Return null if no symbols were defined. |
| 2940 | if (!NumClasses && !NumCategories) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2941 | return llvm::Constant::getNullValue(ObjCTypes.SymtabPtrTy); |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 2942 | |
| 2943 | std::vector<llvm::Constant*> Values(5); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2944 | Values[0] = llvm::ConstantInt::get(ObjCTypes.LongTy, 0); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 2945 | Values[1] = llvm::Constant::getNullValue(ObjCTypes.SelectorPtrTy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 2946 | Values[2] = llvm::ConstantInt::get(ObjCTypes.ShortTy, NumClasses); |
| 2947 | Values[3] = llvm::ConstantInt::get(ObjCTypes.ShortTy, NumCategories); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2948 | |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2949 | // The runtime expects exactly the list of defined classes followed |
| 2950 | // by the list of defined categories, in a single array. |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2951 | std::vector<llvm::Constant*> Symbols(NumClasses + NumCategories); |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2952 | for (unsigned i=0; i<NumClasses; i++) |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2953 | Symbols[i] = llvm::ConstantExpr::getBitCast(DefinedClasses[i], |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2954 | ObjCTypes.Int8PtrTy); |
| 2955 | for (unsigned i=0; i<NumCategories; i++) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2956 | Symbols[NumClasses + i] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2957 | llvm::ConstantExpr::getBitCast(DefinedCategories[i], |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 2958 | ObjCTypes.Int8PtrTy); |
| 2959 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2960 | Values[4] = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 2961 | llvm::ConstantArray::get(llvm::ArrayType::get(ObjCTypes.Int8PtrTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2962 | NumClasses + NumCategories), |
| 2963 | Symbols); |
| 2964 | |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 2965 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2966 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 2967 | llvm::GlobalVariable *GV = |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2968 | CreateMetadataVar("\01L_OBJC_SYMBOLS", Init, |
| 2969 | "__OBJC,__symbols,regular,no_dead_strip", |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2970 | 4, true); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2971 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.SymtabPtrTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2972 | } |
| 2973 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2974 | llvm::Value *CGObjCMac::EmitClassRef(CGBuilderTy &Builder, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2975 | const ObjCInterfaceDecl *ID) { |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 2976 | LazySymbols.insert(ID->getIdentifier()); |
| 2977 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2978 | llvm::GlobalVariable *&Entry = ClassReferences[ID->getIdentifier()]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2979 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2980 | if (!Entry) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2981 | llvm::Constant *Casted = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2982 | llvm::ConstantExpr::getBitCast(GetClassName(ID->getIdentifier()), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2983 | ObjCTypes.ClassPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2984 | Entry = |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 2985 | CreateMetadataVar("\01L_OBJC_CLASS_REFERENCES_", Casted, |
| 2986 | "__OBJC,__cls_refs,literal_pointers,no_dead_strip", |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 2987 | 4, true); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 2988 | } |
| 2989 | |
| 2990 | return Builder.CreateLoad(Entry, false, "tmp"); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 2991 | } |
| 2992 | |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 2993 | llvm::Value *CGObjCMac::EmitSelector(CGBuilderTy &Builder, Selector Sel) { |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 2994 | llvm::GlobalVariable *&Entry = SelectorReferences[Sel]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2995 | |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 2996 | if (!Entry) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 2997 | llvm::Constant *Casted = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 2998 | llvm::ConstantExpr::getBitCast(GetMethodVarName(Sel), |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 2999 | ObjCTypes.SelectorPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3000 | Entry = |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3001 | CreateMetadataVar("\01L_OBJC_SELECTOR_REFERENCES_", Casted, |
| 3002 | "__OBJC,__message_refs,literal_pointers,no_dead_strip", |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 3003 | 4, true); |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3004 | } |
| 3005 | |
| 3006 | return Builder.CreateLoad(Entry, false, "tmp"); |
| 3007 | } |
| 3008 | |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 3009 | llvm::Constant *CGObjCCommonMac::GetClassName(IdentifierInfo *Ident) { |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3010 | llvm::GlobalVariable *&Entry = ClassNames[Ident]; |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3011 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3012 | if (!Entry) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3013 | Entry = CreateMetadataVar("\01L_OBJC_CLASS_NAME_", |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 3014 | llvm::ConstantArray::get(VMContext, |
| 3015 | Ident->getNameStart()), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3016 | "__TEXT,__cstring,cstring_literals", |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3017 | 1, true); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3018 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3019 | return getConstantGEP(VMContext, Entry, 0, 0); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3020 | } |
| 3021 | |
Fariborz Jahanian | d80d81b | 2009-03-05 19:17:31 +0000 | [diff] [blame] | 3022 | /// GetIvarLayoutName - Returns a unique constant for the given |
| 3023 | /// ivar layout bitmap. |
| 3024 | llvm::Constant *CGObjCCommonMac::GetIvarLayoutName(IdentifierInfo *Ident, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3025 | const ObjCCommonTypesHelper &ObjCTypes) { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 3026 | return llvm::Constant::getNullValue(ObjCTypes.Int8PtrTy); |
Fariborz Jahanian | d80d81b | 2009-03-05 19:17:31 +0000 | [diff] [blame] | 3027 | } |
| 3028 | |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3029 | static Qualifiers::GC GetGCAttrTypeForType(ASTContext &Ctx, QualType FQT) { |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3030 | if (FQT.isObjCGCStrong()) |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3031 | return Qualifiers::Strong; |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3032 | |
| 3033 | if (FQT.isObjCGCWeak()) |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3034 | return Qualifiers::Weak; |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3035 | |
Fariborz Jahanian | 039e6a1 | 2009-09-11 17:39:05 +0000 | [diff] [blame] | 3036 | if (FQT->isObjCObjectPointerType() || FQT->isBlockPointerType()) |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3037 | return Qualifiers::Strong; |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3038 | |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 3039 | if (const PointerType *PT = FQT->getAs<PointerType>()) |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3040 | return GetGCAttrTypeForType(Ctx, PT->getPointeeType()); |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3041 | |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3042 | return Qualifiers::GCNone; |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3043 | } |
| 3044 | |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3045 | void CGObjCCommonMac::BuildAggrIvarRecordLayout(const RecordType *RT, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3046 | unsigned int BytePos, |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3047 | bool ForStrongLayout, |
| 3048 | bool &HasUnion) { |
| 3049 | const RecordDecl *RD = RT->getDecl(); |
| 3050 | // FIXME - Use iterator. |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 3051 | llvm::SmallVector<FieldDecl*, 16> Fields(RD->field_begin(), RD->field_end()); |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3052 | const llvm::Type *Ty = CGM.getTypes().ConvertType(QualType(RT, 0)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3053 | const llvm::StructLayout *RecLayout = |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3054 | CGM.getTargetData().getStructLayout(cast<llvm::StructType>(Ty)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3055 | |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3056 | BuildAggrIvarLayout(0, RecLayout, RD, Fields, BytePos, |
| 3057 | ForStrongLayout, HasUnion); |
| 3058 | } |
| 3059 | |
Daniel Dunbar | 5a5a803 | 2009-05-03 21:05:10 +0000 | [diff] [blame] | 3060 | void CGObjCCommonMac::BuildAggrIvarLayout(const ObjCImplementationDecl *OI, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3061 | const llvm::StructLayout *Layout, |
| 3062 | const RecordDecl *RD, |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 3063 | const llvm::SmallVectorImpl<FieldDecl*> &RecFields, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3064 | unsigned int BytePos, bool ForStrongLayout, |
| 3065 | bool &HasUnion) { |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3066 | bool IsUnion = (RD && RD->isUnion()); |
| 3067 | uint64_t MaxUnionIvarSize = 0; |
| 3068 | uint64_t MaxSkippedUnionIvarSize = 0; |
| 3069 | FieldDecl *MaxField = 0; |
| 3070 | FieldDecl *MaxSkippedField = 0; |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3071 | FieldDecl *LastFieldBitfield = 0; |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3072 | uint64_t MaxFieldOffset = 0; |
| 3073 | uint64_t MaxSkippedFieldOffset = 0; |
| 3074 | uint64_t LastBitfieldOffset = 0; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3075 | |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3076 | if (RecFields.empty()) |
| 3077 | return; |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 3078 | unsigned WordSizeInBits = CGM.getContext().Target.getPointerWidth(0); |
| 3079 | unsigned ByteSizeInBits = CGM.getContext().Target.getCharWidth(); |
| 3080 | |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 3081 | for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3082 | FieldDecl *Field = RecFields[i]; |
Daniel Dunbar | e05cc98 | 2009-05-03 23:35:23 +0000 | [diff] [blame] | 3083 | uint64_t FieldOffset; |
Anders Carlsson | fc514ab | 2009-07-24 17:23:54 +0000 | [diff] [blame] | 3084 | if (RD) { |
| 3085 | if (Field->isBitField()) { |
| 3086 | CodeGenTypes::BitFieldInfo Info = CGM.getTypes().getBitFieldInfo(Field); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3087 | |
| 3088 | const llvm::Type *Ty = |
Anders Carlsson | ef46d18 | 2009-08-25 02:07:02 +0000 | [diff] [blame] | 3089 | CGM.getTypes().ConvertTypeForMemRecursive(Field->getType()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3090 | uint64_t TypeSize = |
Anders Carlsson | ef46d18 | 2009-08-25 02:07:02 +0000 | [diff] [blame] | 3091 | CGM.getTypes().getTargetData().getTypeAllocSize(Ty); |
| 3092 | FieldOffset = Info.FieldNo * TypeSize; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3093 | } else |
| 3094 | FieldOffset = |
Anders Carlsson | fc514ab | 2009-07-24 17:23:54 +0000 | [diff] [blame] | 3095 | Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(Field)); |
| 3096 | } else |
Daniel Dunbar | e05cc98 | 2009-05-03 23:35:23 +0000 | [diff] [blame] | 3097 | FieldOffset = ComputeIvarBaseOffset(CGM, OI, cast<ObjCIvarDecl>(Field)); |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3098 | |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3099 | // Skip over unnamed or bitfields |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3100 | if (!Field->getIdentifier() || Field->isBitField()) { |
| 3101 | LastFieldBitfield = Field; |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3102 | LastBitfieldOffset = FieldOffset; |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3103 | continue; |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3104 | } |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3105 | |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3106 | LastFieldBitfield = 0; |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3107 | QualType FQT = Field->getType(); |
Fariborz Jahanian | 667423a | 2009-03-25 22:36:49 +0000 | [diff] [blame] | 3108 | if (FQT->isRecordType() || FQT->isUnionType()) { |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3109 | if (FQT->isUnionType()) |
| 3110 | HasUnion = true; |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3111 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3112 | BuildAggrIvarRecordLayout(FQT->getAs<RecordType>(), |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3113 | BytePos + FieldOffset, |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3114 | ForStrongLayout, HasUnion); |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3115 | continue; |
| 3116 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3117 | |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 3118 | if (const ArrayType *Array = CGM.getContext().getAsArrayType(FQT)) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3119 | const ConstantArrayType *CArray = |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3120 | dyn_cast_or_null<ConstantArrayType>(Array); |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3121 | uint64_t ElCount = CArray->getSize().getZExtValue(); |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3122 | assert(CArray && "only array with known element size is supported"); |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3123 | FQT = CArray->getElementType(); |
Fariborz Jahanian | 667423a | 2009-03-25 22:36:49 +0000 | [diff] [blame] | 3124 | while (const ArrayType *Array = CGM.getContext().getAsArrayType(FQT)) { |
| 3125 | const ConstantArrayType *CArray = |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3126 | dyn_cast_or_null<ConstantArrayType>(Array); |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3127 | ElCount *= CArray->getSize().getZExtValue(); |
Fariborz Jahanian | 667423a | 2009-03-25 22:36:49 +0000 | [diff] [blame] | 3128 | FQT = CArray->getElementType(); |
| 3129 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3130 | |
| 3131 | assert(!FQT->isUnionType() && |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3132 | "layout for array of unions not supported"); |
| 3133 | if (FQT->isRecordType()) { |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3134 | int OldIndex = IvarsInfo.size() - 1; |
| 3135 | int OldSkIndex = SkipIvars.size() -1; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3136 | |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 3137 | const RecordType *RT = FQT->getAs<RecordType>(); |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3138 | BuildAggrIvarRecordLayout(RT, BytePos + FieldOffset, |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3139 | ForStrongLayout, HasUnion); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3140 | |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3141 | // Replicate layout information for each array element. Note that |
| 3142 | // one element is already done. |
| 3143 | uint64_t ElIx = 1; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3144 | for (int FirstIndex = IvarsInfo.size() - 1, |
| 3145 | FirstSkIndex = SkipIvars.size() - 1 ;ElIx < ElCount; ElIx++) { |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3146 | uint64_t Size = CGM.getContext().getTypeSize(RT)/ByteSizeInBits; |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3147 | for (int i = OldIndex+1; i <= FirstIndex; ++i) |
| 3148 | IvarsInfo.push_back(GC_IVAR(IvarsInfo[i].ivar_bytepos + Size*ElIx, |
| 3149 | IvarsInfo[i].ivar_size)); |
| 3150 | for (int i = OldSkIndex+1; i <= FirstSkIndex; ++i) |
| 3151 | SkipIvars.push_back(GC_IVAR(SkipIvars[i].ivar_bytepos + Size*ElIx, |
| 3152 | SkipIvars[i].ivar_size)); |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3153 | } |
| 3154 | continue; |
| 3155 | } |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3156 | } |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3157 | // At this point, we are done with Record/Union and array there of. |
| 3158 | // For other arrays we are down to its element type. |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3159 | Qualifiers::GC GCAttr = GetGCAttrTypeForType(CGM.getContext(), FQT); |
Daniel Dunbar | 5e563dd | 2009-05-03 13:55:09 +0000 | [diff] [blame] | 3160 | |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3161 | unsigned FieldSize = CGM.getContext().getTypeSize(Field->getType()); |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3162 | if ((ForStrongLayout && GCAttr == Qualifiers::Strong) |
| 3163 | || (!ForStrongLayout && GCAttr == Qualifiers::Weak)) { |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3164 | if (IsUnion) { |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3165 | uint64_t UnionIvarSize = FieldSize / WordSizeInBits; |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3166 | if (UnionIvarSize > MaxUnionIvarSize) { |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3167 | MaxUnionIvarSize = UnionIvarSize; |
| 3168 | MaxField = Field; |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3169 | MaxFieldOffset = FieldOffset; |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3170 | } |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3171 | } else { |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3172 | IvarsInfo.push_back(GC_IVAR(BytePos + FieldOffset, |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3173 | FieldSize / WordSizeInBits)); |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3174 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3175 | } else if ((ForStrongLayout && |
John McCall | 0953e76 | 2009-09-24 19:53:00 +0000 | [diff] [blame] | 3176 | (GCAttr == Qualifiers::GCNone || GCAttr == Qualifiers::Weak)) |
| 3177 | || (!ForStrongLayout && GCAttr != Qualifiers::Weak)) { |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3178 | if (IsUnion) { |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 3179 | // FIXME: Why the asymmetry? We divide by word size in bits on other |
| 3180 | // side. |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3181 | uint64_t UnionIvarSize = FieldSize; |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3182 | if (UnionIvarSize > MaxSkippedUnionIvarSize) { |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3183 | MaxSkippedUnionIvarSize = UnionIvarSize; |
| 3184 | MaxSkippedField = Field; |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3185 | MaxSkippedFieldOffset = FieldOffset; |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3186 | } |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3187 | } else { |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3188 | // FIXME: Why the asymmetry, we divide by byte size in bits here? |
Daniel Dunbar | 25d583e | 2009-05-03 14:17:18 +0000 | [diff] [blame] | 3189 | SkipIvars.push_back(GC_IVAR(BytePos + FieldOffset, |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3190 | FieldSize / ByteSizeInBits)); |
Fariborz Jahanian | 820e020 | 2009-03-11 00:07:04 +0000 | [diff] [blame] | 3191 | } |
| 3192 | } |
| 3193 | } |
Daniel Dunbar | d58edcb | 2009-05-03 14:10:34 +0000 | [diff] [blame] | 3194 | |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3195 | if (LastFieldBitfield) { |
| 3196 | // Last field was a bitfield. Must update skip info. |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3197 | Expr *BitWidth = LastFieldBitfield->getBitWidth(); |
| 3198 | uint64_t BitFieldSize = |
Eli Friedman | 9a901bb | 2009-04-26 19:19:15 +0000 | [diff] [blame] | 3199 | BitWidth->EvaluateAsInt(CGM.getContext()).getZExtValue(); |
Daniel Dunbar | 487993b | 2009-05-03 13:32:01 +0000 | [diff] [blame] | 3200 | GC_IVAR skivar; |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3201 | skivar.ivar_bytepos = BytePos + LastBitfieldOffset; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3202 | skivar.ivar_size = (BitFieldSize / ByteSizeInBits) |
| 3203 | + ((BitFieldSize % ByteSizeInBits) != 0); |
| 3204 | SkipIvars.push_back(skivar); |
Fariborz Jahanian | 7fb1627 | 2009-04-21 18:33:06 +0000 | [diff] [blame] | 3205 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3206 | |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3207 | if (MaxField) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3208 | IvarsInfo.push_back(GC_IVAR(BytePos + MaxFieldOffset, |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3209 | MaxUnionIvarSize)); |
| 3210 | if (MaxSkippedField) |
Daniel Dunbar | 900c198 | 2009-05-03 23:31:46 +0000 | [diff] [blame] | 3211 | SkipIvars.push_back(GC_IVAR(BytePos + MaxSkippedFieldOffset, |
Daniel Dunbar | 8b2926c | 2009-05-03 13:44:42 +0000 | [diff] [blame] | 3212 | MaxSkippedUnionIvarSize)); |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 3213 | } |
| 3214 | |
| 3215 | /// BuildIvarLayout - Builds ivar layout bitmap for the class |
| 3216 | /// implementation for the __strong or __weak case. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3217 | /// The layout map displays which words in ivar list must be skipped |
| 3218 | /// and which must be scanned by GC (see below). String is built of bytes. |
| 3219 | /// Each byte is divided up in two nibbles (4-bit each). Left nibble is count |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 3220 | /// of words to skip and right nibble is count of words to scan. So, each |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3221 | /// nibble represents up to 15 workds to skip or scan. Skipping the rest is |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 3222 | /// represented by a 0x00 byte which also ends the string. |
| 3223 | /// 1. when ForStrongLayout is true, following ivars are scanned: |
| 3224 | /// - id, Class |
| 3225 | /// - object * |
| 3226 | /// - __strong anything |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3227 | /// |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 3228 | /// 2. When ForStrongLayout is false, following ivars are scanned: |
| 3229 | /// - __weak anything |
| 3230 | /// |
Fariborz Jahanian | a5a10c3 | 2009-03-10 16:22:08 +0000 | [diff] [blame] | 3231 | llvm::Constant *CGObjCCommonMac::BuildIvarLayout( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3232 | const ObjCImplementationDecl *OMD, |
| 3233 | bool ForStrongLayout) { |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 3234 | bool hasUnion = false; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3235 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3236 | unsigned int WordsToScan, WordsToSkip; |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 3237 | const llvm::Type *PtrTy = llvm::Type::getInt8PtrTy(VMContext); |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3238 | if (CGM.getLangOptions().getGCMode() == LangOptions::NonGC) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 3239 | return llvm::Constant::getNullValue(PtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3240 | |
Chris Lattner | f169085 | 2009-03-31 08:48:01 +0000 | [diff] [blame] | 3241 | llvm::SmallVector<FieldDecl*, 32> RecFields; |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3242 | const ObjCInterfaceDecl *OI = OMD->getClassInterface(); |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 3243 | CGM.getContext().CollectObjCIvars(OI, RecFields); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3244 | |
Daniel Dunbar | 3715328 | 2009-05-04 04:10:48 +0000 | [diff] [blame] | 3245 | // Add this implementations synthesized ivars. |
Fariborz Jahanian | 9820074 | 2009-05-12 18:14:29 +0000 | [diff] [blame] | 3246 | llvm::SmallVector<ObjCIvarDecl*, 16> Ivars; |
| 3247 | CGM.getContext().CollectSynthesizedIvars(OI, Ivars); |
| 3248 | for (unsigned k = 0, e = Ivars.size(); k != e; ++k) |
| 3249 | RecFields.push_back(cast<FieldDecl>(Ivars[k])); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3250 | |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 3251 | if (RecFields.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 3252 | return llvm::Constant::getNullValue(PtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3253 | |
| 3254 | SkipIvars.clear(); |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3255 | IvarsInfo.clear(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3256 | |
Daniel Dunbar | 5a5a803 | 2009-05-03 21:05:10 +0000 | [diff] [blame] | 3257 | BuildAggrIvarLayout(OMD, 0, 0, RecFields, 0, ForStrongLayout, hasUnion); |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3258 | if (IvarsInfo.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 3259 | return llvm::Constant::getNullValue(PtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3260 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3261 | // Sort on byte position in case we encounterred a union nested in |
| 3262 | // the ivar list. |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3263 | if (hasUnion && !IvarsInfo.empty()) |
Daniel Dunbar | 0941b49 | 2009-04-23 01:29:05 +0000 | [diff] [blame] | 3264 | std::sort(IvarsInfo.begin(), IvarsInfo.end()); |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3265 | if (hasUnion && !SkipIvars.empty()) |
Daniel Dunbar | 0941b49 | 2009-04-23 01:29:05 +0000 | [diff] [blame] | 3266 | std::sort(SkipIvars.begin(), SkipIvars.end()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3267 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3268 | // Build the string of skip/scan nibbles |
Fariborz Jahanian | 8c2f2d1 | 2009-04-24 17:15:27 +0000 | [diff] [blame] | 3269 | llvm::SmallVector<SKIP_SCAN, 32> SkipScanIvars; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3270 | unsigned int WordSize = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 3271 | CGM.getTypes().getTargetData().getTypeAllocSize(PtrTy); |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3272 | if (IvarsInfo[0].ivar_bytepos == 0) { |
| 3273 | WordsToSkip = 0; |
| 3274 | WordsToScan = IvarsInfo[0].ivar_size; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3275 | } else { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3276 | WordsToSkip = IvarsInfo[0].ivar_bytepos/WordSize; |
| 3277 | WordsToScan = IvarsInfo[0].ivar_size; |
| 3278 | } |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3279 | for (unsigned int i=1, Last=IvarsInfo.size(); i != Last; i++) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3280 | unsigned int TailPrevGCObjC = |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3281 | IvarsInfo[i-1].ivar_bytepos + IvarsInfo[i-1].ivar_size * WordSize; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3282 | if (IvarsInfo[i].ivar_bytepos == TailPrevGCObjC) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3283 | // consecutive 'scanned' object pointers. |
| 3284 | WordsToScan += IvarsInfo[i].ivar_size; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3285 | } else { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3286 | // Skip over 'gc'able object pointer which lay over each other. |
| 3287 | if (TailPrevGCObjC > IvarsInfo[i].ivar_bytepos) |
| 3288 | continue; |
| 3289 | // Must skip over 1 or more words. We save current skip/scan values |
| 3290 | // and start a new pair. |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3291 | SKIP_SCAN SkScan; |
| 3292 | SkScan.skip = WordsToSkip; |
| 3293 | SkScan.scan = WordsToScan; |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3294 | SkipScanIvars.push_back(SkScan); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3295 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3296 | // Skip the hole. |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3297 | SkScan.skip = (IvarsInfo[i].ivar_bytepos - TailPrevGCObjC) / WordSize; |
| 3298 | SkScan.scan = 0; |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3299 | SkipScanIvars.push_back(SkScan); |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3300 | WordsToSkip = 0; |
| 3301 | WordsToScan = IvarsInfo[i].ivar_size; |
| 3302 | } |
| 3303 | } |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3304 | if (WordsToScan > 0) { |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3305 | SKIP_SCAN SkScan; |
| 3306 | SkScan.skip = WordsToSkip; |
| 3307 | SkScan.scan = WordsToScan; |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3308 | SkipScanIvars.push_back(SkScan); |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3309 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3310 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3311 | bool BytesSkipped = false; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3312 | if (!SkipIvars.empty()) { |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3313 | unsigned int LastIndex = SkipIvars.size()-1; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3314 | int LastByteSkipped = |
| 3315 | SkipIvars[LastIndex].ivar_bytepos + SkipIvars[LastIndex].ivar_size; |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3316 | LastIndex = IvarsInfo.size()-1; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3317 | int LastByteScanned = |
| 3318 | IvarsInfo[LastIndex].ivar_bytepos + |
| 3319 | IvarsInfo[LastIndex].ivar_size * WordSize; |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3320 | BytesSkipped = (LastByteSkipped > LastByteScanned); |
| 3321 | // Compute number of bytes to skip at the tail end of the last ivar scanned. |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3322 | if (BytesSkipped) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3323 | unsigned int TotalWords = (LastByteSkipped + (WordSize -1)) / WordSize; |
Fariborz Jahanian | c8ce9c8 | 2009-03-12 22:50:49 +0000 | [diff] [blame] | 3324 | SKIP_SCAN SkScan; |
| 3325 | SkScan.skip = TotalWords - (LastByteScanned/WordSize); |
| 3326 | SkScan.scan = 0; |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3327 | SkipScanIvars.push_back(SkScan); |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3328 | } |
| 3329 | } |
| 3330 | // Mini optimization of nibbles such that an 0xM0 followed by 0x0N is produced |
| 3331 | // as 0xMN. |
Fariborz Jahanian | 81adc05 | 2009-04-24 16:17:09 +0000 | [diff] [blame] | 3332 | int SkipScan = SkipScanIvars.size()-1; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3333 | for (int i = 0; i <= SkipScan; i++) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3334 | if ((i < SkipScan) && SkipScanIvars[i].skip && SkipScanIvars[i].scan == 0 |
| 3335 | && SkipScanIvars[i+1].skip == 0 && SkipScanIvars[i+1].scan) { |
| 3336 | // 0xM0 followed by 0x0N detected. |
| 3337 | SkipScanIvars[i].scan = SkipScanIvars[i+1].scan; |
| 3338 | for (int j = i+1; j < SkipScan; j++) |
| 3339 | SkipScanIvars[j] = SkipScanIvars[j+1]; |
| 3340 | --SkipScan; |
| 3341 | } |
| 3342 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3343 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3344 | // Generate the string. |
| 3345 | std::string BitMap; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3346 | for (int i = 0; i <= SkipScan; i++) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3347 | unsigned char byte; |
| 3348 | unsigned int skip_small = SkipScanIvars[i].skip % 0xf; |
| 3349 | unsigned int scan_small = SkipScanIvars[i].scan % 0xf; |
| 3350 | unsigned int skip_big = SkipScanIvars[i].skip / 0xf; |
| 3351 | unsigned int scan_big = SkipScanIvars[i].scan / 0xf; |
| 3352 | |
| 3353 | if (skip_small > 0 || skip_big > 0) |
| 3354 | BytesSkipped = true; |
| 3355 | // first skip big. |
| 3356 | for (unsigned int ix = 0; ix < skip_big; ix++) |
| 3357 | BitMap += (unsigned char)(0xf0); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3358 | |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3359 | // next (skip small, scan) |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3360 | if (skip_small) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3361 | byte = skip_small << 4; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3362 | if (scan_big > 0) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3363 | byte |= 0xf; |
| 3364 | --scan_big; |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3365 | } else if (scan_small) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3366 | byte |= scan_small; |
| 3367 | scan_small = 0; |
| 3368 | } |
| 3369 | BitMap += byte; |
| 3370 | } |
| 3371 | // next scan big |
| 3372 | for (unsigned int ix = 0; ix < scan_big; ix++) |
| 3373 | BitMap += (unsigned char)(0x0f); |
| 3374 | // last scan small |
Daniel Dunbar | 31682fd | 2009-05-03 23:21:22 +0000 | [diff] [blame] | 3375 | if (scan_small) { |
Fariborz Jahanian | 9397e1d | 2009-03-11 20:59:05 +0000 | [diff] [blame] | 3376 | byte = scan_small; |
| 3377 | BitMap += byte; |
| 3378 | } |
| 3379 | } |
| 3380 | // null terminate string. |
Fariborz Jahanian | 667423a | 2009-03-25 22:36:49 +0000 | [diff] [blame] | 3381 | unsigned char zero = 0; |
| 3382 | BitMap += zero; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3383 | |
Fariborz Jahanian | 3d2ad66 | 2009-04-20 22:03:45 +0000 | [diff] [blame] | 3384 | if (CGM.getLangOptions().ObjCGCBitmapPrint) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3385 | printf("\n%s ivar layout for class '%s': ", |
Fariborz Jahanian | 3d2ad66 | 2009-04-20 22:03:45 +0000 | [diff] [blame] | 3386 | ForStrongLayout ? "strong" : "weak", |
| 3387 | OMD->getClassInterface()->getNameAsCString()); |
| 3388 | const unsigned char *s = (unsigned char*)BitMap.c_str(); |
| 3389 | for (unsigned i = 0; i < BitMap.size(); i++) |
| 3390 | if (!(s[i] & 0xf0)) |
| 3391 | printf("0x0%x%s", s[i], s[i] != 0 ? ", " : ""); |
| 3392 | else |
| 3393 | printf("0x%x%s", s[i], s[i] != 0 ? ", " : ""); |
| 3394 | printf("\n"); |
| 3395 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3396 | llvm::GlobalVariable * Entry = |
| 3397 | CreateMetadataVar("\01L_OBJC_CLASS_NAME_", |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 3398 | llvm::ConstantArray::get(VMContext, BitMap.c_str()), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3399 | "__TEXT,__cstring,cstring_literals", |
| 3400 | 1, true); |
| 3401 | return getConstantGEP(VMContext, Entry, 0, 0); |
Fariborz Jahanian | d61a50a | 2009-03-05 22:39:55 +0000 | [diff] [blame] | 3402 | } |
| 3403 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3404 | llvm::Constant *CGObjCCommonMac::GetMethodVarName(Selector Sel) { |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3405 | llvm::GlobalVariable *&Entry = MethodVarNames[Sel]; |
| 3406 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3407 | // FIXME: Avoid std::string copying. |
| 3408 | if (!Entry) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3409 | Entry = CreateMetadataVar("\01L_OBJC_METH_VAR_NAME_", |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 3410 | llvm::ConstantArray::get(VMContext, Sel.getAsString()), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3411 | "__TEXT,__cstring,cstring_literals", |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3412 | 1, true); |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3413 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3414 | return getConstantGEP(VMContext, Entry, 0, 0); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3415 | } |
| 3416 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3417 | // FIXME: Merge into a single cstring creation function. |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3418 | llvm::Constant *CGObjCCommonMac::GetMethodVarName(IdentifierInfo *ID) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3419 | return GetMethodVarName(CGM.getContext().Selectors.getNullarySelector(ID)); |
| 3420 | } |
| 3421 | |
| 3422 | // FIXME: Merge into a single cstring creation function. |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3423 | llvm::Constant *CGObjCCommonMac::GetMethodVarName(const std::string &Name) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3424 | return GetMethodVarName(&CGM.getContext().Idents.get(Name)); |
| 3425 | } |
| 3426 | |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 3427 | llvm::Constant *CGObjCCommonMac::GetMethodVarType(const FieldDecl *Field) { |
Devang Patel | 7794bb8 | 2009-03-04 18:21:39 +0000 | [diff] [blame] | 3428 | std::string TypeStr; |
| 3429 | CGM.getContext().getObjCEncodingForType(Field->getType(), TypeStr, Field); |
| 3430 | |
| 3431 | llvm::GlobalVariable *&Entry = MethodVarTypes[TypeStr]; |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3432 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3433 | if (!Entry) |
| 3434 | Entry = CreateMetadataVar("\01L_OBJC_METH_VAR_TYPE_", |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 3435 | llvm::ConstantArray::get(VMContext, TypeStr), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3436 | "__TEXT,__cstring,cstring_literals", |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3437 | 1, true); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3438 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3439 | return getConstantGEP(VMContext, Entry, 0, 0); |
Daniel Dunbar | 259d93d | 2008-08-12 03:39:23 +0000 | [diff] [blame] | 3440 | } |
| 3441 | |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3442 | llvm::Constant *CGObjCCommonMac::GetMethodVarType(const ObjCMethodDecl *D) { |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3443 | std::string TypeStr; |
Daniel Dunbar | c45ef60 | 2008-08-26 21:51:14 +0000 | [diff] [blame] | 3444 | CGM.getContext().getObjCEncodingForMethodDecl(const_cast<ObjCMethodDecl*>(D), |
| 3445 | TypeStr); |
Devang Patel | 7794bb8 | 2009-03-04 18:21:39 +0000 | [diff] [blame] | 3446 | |
| 3447 | llvm::GlobalVariable *&Entry = MethodVarTypes[TypeStr]; |
| 3448 | |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3449 | if (!Entry) |
| 3450 | Entry = CreateMetadataVar("\01L_OBJC_METH_VAR_TYPE_", |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 3451 | llvm::ConstantArray::get(VMContext, TypeStr), |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3452 | "__TEXT,__cstring,cstring_literals", |
| 3453 | 1, true); |
Devang Patel | 7794bb8 | 2009-03-04 18:21:39 +0000 | [diff] [blame] | 3454 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3455 | return getConstantGEP(VMContext, Entry, 0, 0); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3456 | } |
| 3457 | |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 3458 | // FIXME: Merge into a single cstring creation function. |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3459 | llvm::Constant *CGObjCCommonMac::GetPropertyName(IdentifierInfo *Ident) { |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 3460 | llvm::GlobalVariable *&Entry = PropertyNames[Ident]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3461 | |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3462 | if (!Entry) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3463 | Entry = CreateMetadataVar("\01L_OBJC_PROP_NAME_ATTR_", |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 3464 | llvm::ConstantArray::get(VMContext, |
| 3465 | Ident->getNameStart()), |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3466 | "__TEXT,__cstring,cstring_literals", |
Daniel Dunbar | b90bb00 | 2009-04-14 23:14:47 +0000 | [diff] [blame] | 3467 | 1, true); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 3468 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3469 | return getConstantGEP(VMContext, Entry, 0, 0); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 3470 | } |
| 3471 | |
| 3472 | // FIXME: Merge into a single cstring creation function. |
Daniel Dunbar | c56f34a | 2008-08-28 04:38:10 +0000 | [diff] [blame] | 3473 | // FIXME: This Decl should be more precise. |
Daniel Dunbar | 63c5b50 | 2009-03-09 21:49:58 +0000 | [diff] [blame] | 3474 | llvm::Constant * |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3475 | CGObjCCommonMac::GetPropertyTypeString(const ObjCPropertyDecl *PD, |
| 3476 | const Decl *Container) { |
Daniel Dunbar | c56f34a | 2008-08-28 04:38:10 +0000 | [diff] [blame] | 3477 | std::string TypeStr; |
| 3478 | CGM.getContext().getObjCEncodingForPropertyDecl(PD, Container, TypeStr); |
Daniel Dunbar | c8ef551 | 2008-08-23 00:19:03 +0000 | [diff] [blame] | 3479 | return GetPropertyName(&CGM.getContext().Idents.get(TypeStr)); |
| 3480 | } |
| 3481 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3482 | void CGObjCCommonMac::GetNameForMethod(const ObjCMethodDecl *D, |
Fariborz Jahanian | 56210f7 | 2009-01-21 23:34:32 +0000 | [diff] [blame] | 3483 | const ObjCContainerDecl *CD, |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 3484 | llvm::SmallVectorImpl<char> &Name) { |
| 3485 | llvm::raw_svector_ostream OS(Name); |
Fariborz Jahanian | 679a502 | 2009-01-10 21:06:09 +0000 | [diff] [blame] | 3486 | assert (CD && "Missing container decl in GetNameForMethod"); |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 3487 | OS << '\01' << (D->isInstanceMethod() ? '-' : '+') |
| 3488 | << '[' << CD->getName(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3489 | if (const ObjCCategoryImplDecl *CID = |
Daniel Dunbar | c575ce7 | 2009-10-19 01:21:19 +0000 | [diff] [blame] | 3490 | dyn_cast<ObjCCategoryImplDecl>(D->getDeclContext())) |
| 3491 | OS << '(' << CID->getNameAsString() << ')'; |
| 3492 | OS << ' ' << D->getSelector().getAsString() << ']'; |
Daniel Dunbar | b7ec246 | 2008-08-16 03:19:19 +0000 | [diff] [blame] | 3493 | } |
| 3494 | |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 3495 | void CGObjCMac::FinishModule() { |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3496 | EmitModuleInfo(); |
| 3497 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 3498 | // Emit the dummy bodies for any protocols which were referenced but |
| 3499 | // never defined. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3500 | for (llvm::DenseMap<IdentifierInfo*, llvm::GlobalVariable*>::iterator |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 3501 | I = Protocols.begin(), e = Protocols.end(); I != e; ++I) { |
| 3502 | if (I->second->hasInitializer()) |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 3503 | continue; |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3504 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 3505 | std::vector<llvm::Constant*> Values(5); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 3506 | Values[0] = llvm::Constant::getNullValue(ObjCTypes.ProtocolExtensionPtrTy); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 3507 | Values[1] = GetClassName(I->first); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 3508 | Values[2] = llvm::Constant::getNullValue(ObjCTypes.ProtocolListPtrTy); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 3509 | Values[3] = Values[4] = |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 3510 | llvm::Constant::getNullValue(ObjCTypes.MethodDescriptionListPtrTy); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 3511 | I->second->setLinkage(llvm::GlobalValue::InternalLinkage); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 3512 | I->second->setInitializer(llvm::ConstantStruct::get(ObjCTypes.ProtocolTy, |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 3513 | Values)); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 3514 | CGM.AddUsedGlobal(I->second); |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 3515 | } |
| 3516 | |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 3517 | // Add assembler directives to add lazy undefined symbol references |
| 3518 | // for classes which are referenced but not defined. This is |
| 3519 | // important for correct linker interaction. |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 3520 | // |
| 3521 | // FIXME: It would be nice if we had an LLVM construct for this. |
| 3522 | if (!LazySymbols.empty() || !DefinedSymbols.empty()) { |
| 3523 | llvm::SmallString<256> Asm; |
| 3524 | Asm += CGM.getModule().getModuleInlineAsm(); |
| 3525 | if (!Asm.empty() && Asm.back() != '\n') |
| 3526 | Asm += '\n'; |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 3527 | |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 3528 | llvm::raw_svector_ostream OS(Asm); |
| 3529 | for (llvm::SetVector<IdentifierInfo*>::iterator I = LazySymbols.begin(), |
| 3530 | e = LazySymbols.end(); I != e; ++I) |
Daniel Dunbar | 01eb9b9 | 2009-10-18 21:17:35 +0000 | [diff] [blame] | 3531 | OS << "\t.lazy_reference .objc_class_name_" << (*I)->getName() << "\n"; |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 3532 | for (llvm::SetVector<IdentifierInfo*>::iterator I = DefinedSymbols.begin(), |
| 3533 | e = DefinedSymbols.end(); I != e; ++I) |
Daniel Dunbar | 01eb9b9 | 2009-10-18 21:17:35 +0000 | [diff] [blame] | 3534 | OS << "\t.objc_class_name_" << (*I)->getName() << "=0\n" |
| 3535 | << "\t.globl .objc_class_name_" << (*I)->getName() << "\n"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3536 | |
Daniel Dunbar | 3306349 | 2009-09-07 00:20:42 +0000 | [diff] [blame] | 3537 | CGM.getModule().setModuleInlineAsm(OS.str()); |
Daniel Dunbar | 242d4dc | 2008-08-25 06:02:07 +0000 | [diff] [blame] | 3538 | } |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 3539 | } |
| 3540 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3541 | CGObjCNonFragileABIMac::CGObjCNonFragileABIMac(CodeGen::CodeGenModule &cgm) |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3542 | : CGObjCCommonMac(cgm), |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3543 | ObjCTypes(cgm) { |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 3544 | ObjCEmptyCacheVar = ObjCEmptyVtableVar = NULL; |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3545 | ObjCABI = 2; |
| 3546 | } |
| 3547 | |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 3548 | /* *** */ |
| 3549 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3550 | ObjCCommonTypesHelper::ObjCCommonTypesHelper(CodeGen::CodeGenModule &cgm) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3551 | : VMContext(cgm.getLLVMContext()), CGM(cgm) { |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3552 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 3553 | ASTContext &Ctx = CGM.getContext(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3554 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3555 | ShortTy = Types.ConvertType(Ctx.ShortTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3556 | IntTy = Types.ConvertType(Ctx.IntTy); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3557 | LongTy = Types.ConvertType(Ctx.LongTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 3558 | LongLongTy = Types.ConvertType(Ctx.LongLongTy); |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 3559 | Int8PtrTy = llvm::Type::getInt8PtrTy(VMContext); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3560 | |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3561 | ObjectPtrTy = Types.ConvertType(Ctx.getObjCIdType()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3562 | PtrObjectPtrTy = llvm::PointerType::getUnqual(ObjectPtrTy); |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3563 | SelectorPtrTy = Types.ConvertType(Ctx.getObjCSelType()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3564 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 3565 | // FIXME: It would be nice to unify this with the opaque type, so that the IR |
| 3566 | // comes out a bit cleaner. |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3567 | const llvm::Type *T = Types.ConvertType(Ctx.getObjCProtoType()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3568 | ExternalProtocolPtrTy = llvm::PointerType::getUnqual(T); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3569 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3570 | // I'm not sure I like this. The implicit coordination is a bit |
| 3571 | // gross. We should solve this in a reasonable fashion because this |
| 3572 | // is a pretty common task (match some runtime data structure with |
| 3573 | // an LLVM data structure). |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3574 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3575 | // FIXME: This is leaked. |
| 3576 | // FIXME: Merge with rewriter code? |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3577 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3578 | // struct _objc_super { |
| 3579 | // id self; |
| 3580 | // Class cls; |
| 3581 | // } |
| 3582 | RecordDecl *RD = RecordDecl::Create(Ctx, TagDecl::TK_struct, 0, |
| 3583 | SourceLocation(), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3584 | &Ctx.Idents.get("_objc_super")); |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 3585 | RD->addDecl(FieldDecl::Create(Ctx, RD, SourceLocation(), 0, |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 3586 | Ctx.getObjCIdType(), 0, 0, false)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3587 | RD->addDecl(FieldDecl::Create(Ctx, RD, SourceLocation(), 0, |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 3588 | Ctx.getObjCClassType(), 0, 0, false)); |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3589 | RD->completeDefinition(Ctx); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3590 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3591 | SuperCTy = Ctx.getTagDeclType(RD); |
| 3592 | SuperPtrCTy = Ctx.getPointerType(SuperCTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3593 | |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3594 | SuperTy = cast<llvm::StructType>(Types.ConvertType(SuperCTy)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3595 | SuperPtrTy = llvm::PointerType::getUnqual(SuperTy); |
| 3596 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3597 | // struct _prop_t { |
| 3598 | // char *name; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3599 | // char *attributes; |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3600 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3601 | PropertyTy = llvm::StructType::get(VMContext, Int8PtrTy, Int8PtrTy, NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3602 | CGM.getModule().addTypeName("struct._prop_t", |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3603 | PropertyTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3604 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3605 | // struct _prop_list_t { |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3606 | // uint32_t entsize; // sizeof(struct _prop_t) |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3607 | // uint32_t count_of_properties; |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3608 | // struct _prop_t prop_list[count_of_properties]; |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3609 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3610 | PropertyListTy = llvm::StructType::get(VMContext, IntTy, |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3611 | IntTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3612 | llvm::ArrayType::get(PropertyTy, 0), |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3613 | NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3614 | CGM.getModule().addTypeName("struct._prop_list_t", |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3615 | PropertyListTy); |
| 3616 | // struct _prop_list_t * |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3617 | PropertyListPtrTy = llvm::PointerType::getUnqual(PropertyListTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3618 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3619 | // struct _objc_method { |
| 3620 | // SEL _cmd; |
| 3621 | // char *method_type; |
| 3622 | // char *_imp; |
| 3623 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3624 | MethodTy = llvm::StructType::get(VMContext, SelectorPtrTy, |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3625 | Int8PtrTy, |
| 3626 | Int8PtrTy, |
| 3627 | NULL); |
| 3628 | CGM.getModule().addTypeName("struct._objc_method", MethodTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3629 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3630 | // struct _objc_cache * |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 3631 | CacheTy = llvm::OpaqueType::get(VMContext); |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3632 | CGM.getModule().addTypeName("struct._objc_cache", CacheTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3633 | CachePtrTy = llvm::PointerType::getUnqual(CacheTy); |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3634 | } |
Daniel Dunbar | 4e2d7d0 | 2008-08-12 06:48:42 +0000 | [diff] [blame] | 3635 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3636 | ObjCTypesHelper::ObjCTypesHelper(CodeGen::CodeGenModule &cgm) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3637 | : ObjCCommonTypesHelper(cgm) { |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3638 | // struct _objc_method_description { |
| 3639 | // SEL name; |
| 3640 | // char *types; |
| 3641 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3642 | MethodDescriptionTy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3643 | llvm::StructType::get(VMContext, SelectorPtrTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3644 | Int8PtrTy, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3645 | NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3646 | CGM.getModule().addTypeName("struct._objc_method_description", |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3647 | MethodDescriptionTy); |
| 3648 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3649 | // struct _objc_method_description_list { |
| 3650 | // int count; |
| 3651 | // struct _objc_method_description[1]; |
| 3652 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3653 | MethodDescriptionListTy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3654 | llvm::StructType::get(VMContext, IntTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3655 | llvm::ArrayType::get(MethodDescriptionTy, 0), |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3656 | NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3657 | CGM.getModule().addTypeName("struct._objc_method_description_list", |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3658 | MethodDescriptionListTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3659 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3660 | // struct _objc_method_description_list * |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3661 | MethodDescriptionListPtrTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3662 | llvm::PointerType::getUnqual(MethodDescriptionListTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3663 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3664 | // Protocol description structures |
| 3665 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3666 | // struct _objc_protocol_extension { |
| 3667 | // uint32_t size; // sizeof(struct _objc_protocol_extension) |
| 3668 | // struct _objc_method_description_list *optional_instance_methods; |
| 3669 | // struct _objc_method_description_list *optional_class_methods; |
| 3670 | // struct _objc_property_list *instance_properties; |
| 3671 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3672 | ProtocolExtensionTy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3673 | llvm::StructType::get(VMContext, IntTy, |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3674 | MethodDescriptionListPtrTy, |
| 3675 | MethodDescriptionListPtrTy, |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3676 | PropertyListPtrTy, |
| 3677 | NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3678 | CGM.getModule().addTypeName("struct._objc_protocol_extension", |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3679 | ProtocolExtensionTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3680 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3681 | // struct _objc_protocol_extension * |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3682 | ProtocolExtensionPtrTy = llvm::PointerType::getUnqual(ProtocolExtensionTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3683 | |
Daniel Dunbar | 0c0e7a6 | 2008-10-29 22:36:39 +0000 | [diff] [blame] | 3684 | // Handle recursive construction of Protocol and ProtocolList types |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3685 | |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 3686 | llvm::PATypeHolder ProtocolTyHolder = llvm::OpaqueType::get(VMContext); |
| 3687 | llvm::PATypeHolder ProtocolListTyHolder = llvm::OpaqueType::get(VMContext); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3688 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3689 | const llvm::Type *T = |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3690 | llvm::StructType::get(VMContext, |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3691 | llvm::PointerType::getUnqual(ProtocolListTyHolder), |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3692 | LongTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3693 | llvm::ArrayType::get(ProtocolTyHolder, 0), |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 3694 | NULL); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3695 | cast<llvm::OpaqueType>(ProtocolListTyHolder.get())->refineAbstractTypeTo(T); |
| 3696 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3697 | // struct _objc_protocol { |
| 3698 | // struct _objc_protocol_extension *isa; |
| 3699 | // char *protocol_name; |
| 3700 | // struct _objc_protocol **_objc_protocol_list; |
| 3701 | // struct _objc_method_description_list *instance_methods; |
| 3702 | // struct _objc_method_description_list *class_methods; |
| 3703 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3704 | T = llvm::StructType::get(VMContext, ProtocolExtensionPtrTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3705 | Int8PtrTy, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3706 | llvm::PointerType::getUnqual(ProtocolListTyHolder), |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3707 | MethodDescriptionListPtrTy, |
| 3708 | MethodDescriptionListPtrTy, |
| 3709 | NULL); |
| 3710 | cast<llvm::OpaqueType>(ProtocolTyHolder.get())->refineAbstractTypeTo(T); |
| 3711 | |
| 3712 | ProtocolListTy = cast<llvm::StructType>(ProtocolListTyHolder.get()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3713 | CGM.getModule().addTypeName("struct._objc_protocol_list", |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3714 | ProtocolListTy); |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3715 | // struct _objc_protocol_list * |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3716 | ProtocolListPtrTy = llvm::PointerType::getUnqual(ProtocolListTy); |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 3717 | |
| 3718 | ProtocolTy = cast<llvm::StructType>(ProtocolTyHolder.get()); |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3719 | CGM.getModule().addTypeName("struct._objc_protocol", ProtocolTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3720 | ProtocolPtrTy = llvm::PointerType::getUnqual(ProtocolTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3721 | |
| 3722 | // Class description structures |
| 3723 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3724 | // struct _objc_ivar { |
| 3725 | // char *ivar_name; |
| 3726 | // char *ivar_type; |
| 3727 | // int ivar_offset; |
| 3728 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3729 | IvarTy = llvm::StructType::get(VMContext, Int8PtrTy, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3730 | Int8PtrTy, |
| 3731 | IntTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3732 | NULL); |
| 3733 | CGM.getModule().addTypeName("struct._objc_ivar", IvarTy); |
| 3734 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3735 | // struct _objc_ivar_list * |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 3736 | IvarListTy = llvm::OpaqueType::get(VMContext); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3737 | CGM.getModule().addTypeName("struct._objc_ivar_list", IvarListTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3738 | IvarListPtrTy = llvm::PointerType::getUnqual(IvarListTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3739 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3740 | // struct _objc_method_list * |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 3741 | MethodListTy = llvm::OpaqueType::get(VMContext); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3742 | CGM.getModule().addTypeName("struct._objc_method_list", MethodListTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3743 | MethodListPtrTy = llvm::PointerType::getUnqual(MethodListTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3744 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3745 | // struct _objc_class_extension * |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3746 | ClassExtensionTy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3747 | llvm::StructType::get(VMContext, IntTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3748 | Int8PtrTy, |
| 3749 | PropertyListPtrTy, |
| 3750 | NULL); |
| 3751 | CGM.getModule().addTypeName("struct._objc_class_extension", ClassExtensionTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3752 | ClassExtensionPtrTy = llvm::PointerType::getUnqual(ClassExtensionTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3753 | |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 3754 | llvm::PATypeHolder ClassTyHolder = llvm::OpaqueType::get(VMContext); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3755 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3756 | // struct _objc_class { |
| 3757 | // Class isa; |
| 3758 | // Class super_class; |
| 3759 | // char *name; |
| 3760 | // long version; |
| 3761 | // long info; |
| 3762 | // long instance_size; |
| 3763 | // struct _objc_ivar_list *ivars; |
| 3764 | // struct _objc_method_list *methods; |
| 3765 | // struct _objc_cache *cache; |
| 3766 | // struct _objc_protocol_list *protocols; |
| 3767 | // char *ivar_layout; |
| 3768 | // struct _objc_class_ext *ext; |
| 3769 | // }; |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3770 | T = llvm::StructType::get(VMContext, |
| 3771 | llvm::PointerType::getUnqual(ClassTyHolder), |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3772 | llvm::PointerType::getUnqual(ClassTyHolder), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3773 | Int8PtrTy, |
| 3774 | LongTy, |
| 3775 | LongTy, |
| 3776 | LongTy, |
| 3777 | IvarListPtrTy, |
| 3778 | MethodListPtrTy, |
| 3779 | CachePtrTy, |
| 3780 | ProtocolListPtrTy, |
| 3781 | Int8PtrTy, |
| 3782 | ClassExtensionPtrTy, |
| 3783 | NULL); |
| 3784 | cast<llvm::OpaqueType>(ClassTyHolder.get())->refineAbstractTypeTo(T); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3785 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3786 | ClassTy = cast<llvm::StructType>(ClassTyHolder.get()); |
| 3787 | CGM.getModule().addTypeName("struct._objc_class", ClassTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3788 | ClassPtrTy = llvm::PointerType::getUnqual(ClassTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3789 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3790 | // struct _objc_category { |
| 3791 | // char *category_name; |
| 3792 | // char *class_name; |
| 3793 | // struct _objc_method_list *instance_method; |
| 3794 | // struct _objc_method_list *class_method; |
| 3795 | // uint32_t size; // sizeof(struct _objc_category) |
| 3796 | // struct _objc_property_list *instance_properties;// category's @property |
| 3797 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3798 | CategoryTy = llvm::StructType::get(VMContext, Int8PtrTy, |
Daniel Dunbar | 86e253a | 2008-08-22 20:34:54 +0000 | [diff] [blame] | 3799 | Int8PtrTy, |
| 3800 | MethodListPtrTy, |
| 3801 | MethodListPtrTy, |
| 3802 | ProtocolListPtrTy, |
| 3803 | IntTy, |
| 3804 | PropertyListPtrTy, |
| 3805 | NULL); |
| 3806 | CGM.getModule().addTypeName("struct._objc_category", CategoryTy); |
| 3807 | |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3808 | // Global metadata structures |
| 3809 | |
Fariborz Jahanian | 10a4231 | 2009-01-21 00:39:53 +0000 | [diff] [blame] | 3810 | // struct _objc_symtab { |
| 3811 | // long sel_ref_cnt; |
| 3812 | // SEL *refs; |
| 3813 | // short cls_def_cnt; |
| 3814 | // short cat_def_cnt; |
| 3815 | // char *defs[cls_def_cnt + cat_def_cnt]; |
| 3816 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3817 | SymtabTy = llvm::StructType::get(VMContext, LongTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3818 | SelectorPtrTy, |
| 3819 | ShortTy, |
| 3820 | ShortTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3821 | llvm::ArrayType::get(Int8PtrTy, 0), |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3822 | NULL); |
| 3823 | CGM.getModule().addTypeName("struct._objc_symtab", SymtabTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3824 | SymtabPtrTy = llvm::PointerType::getUnqual(SymtabTy); |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3825 | |
Fariborz Jahanian | db28686 | 2009-01-22 00:37:21 +0000 | [diff] [blame] | 3826 | // struct _objc_module { |
| 3827 | // long version; |
| 3828 | // long size; // sizeof(struct _objc_module) |
| 3829 | // char *name; |
| 3830 | // struct _objc_symtab* symtab; |
| 3831 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3832 | ModuleTy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3833 | llvm::StructType::get(VMContext, LongTy, |
Daniel Dunbar | 27f9d77 | 2008-08-21 04:36:09 +0000 | [diff] [blame] | 3834 | LongTy, |
| 3835 | Int8PtrTy, |
| 3836 | SymtabPtrTy, |
| 3837 | NULL); |
| 3838 | CGM.getModule().addTypeName("struct._objc_module", ModuleTy); |
Daniel Dunbar | 14c80b7 | 2008-08-23 09:25:55 +0000 | [diff] [blame] | 3839 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3840 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 3841 | // FIXME: This is the size of the setjmp buffer and should be target |
| 3842 | // specific. 18 is what's used on 32-bit X86. |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 3843 | uint64_t SetJmpBufferSize = 18; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3844 | |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 3845 | // Exceptions |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3846 | const llvm::Type *StackPtrTy = llvm::ArrayType::get( |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 3847 | llvm::Type::getInt8PtrTy(VMContext), 4); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3848 | |
| 3849 | ExceptionDataTy = |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 3850 | llvm::StructType::get(VMContext, llvm::ArrayType::get(llvm::Type::getInt32Ty(VMContext), |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3851 | SetJmpBufferSize), |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 3852 | StackPtrTy, NULL); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3853 | CGM.getModule().addTypeName("struct._objc_exception_data", |
Anders Carlsson | 124526b | 2008-09-09 10:10:21 +0000 | [diff] [blame] | 3854 | ExceptionDataTy); |
| 3855 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 3856 | } |
| 3857 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3858 | ObjCNonFragileABITypesHelper::ObjCNonFragileABITypesHelper(CodeGen::CodeGenModule &cgm) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3859 | : ObjCCommonTypesHelper(cgm) { |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3860 | // struct _method_list_t { |
| 3861 | // uint32_t entsize; // sizeof(struct _objc_method) |
| 3862 | // uint32_t method_count; |
| 3863 | // struct _objc_method method_list[method_count]; |
| 3864 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3865 | MethodListnfABITy = llvm::StructType::get(VMContext, IntTy, |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3866 | IntTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3867 | llvm::ArrayType::get(MethodTy, 0), |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3868 | NULL); |
| 3869 | CGM.getModule().addTypeName("struct.__method_list_t", |
| 3870 | MethodListnfABITy); |
| 3871 | // struct method_list_t * |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3872 | MethodListnfABIPtrTy = llvm::PointerType::getUnqual(MethodListnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3873 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3874 | // struct _protocol_t { |
| 3875 | // id isa; // NULL |
| 3876 | // const char * const protocol_name; |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3877 | // const struct _protocol_list_t * protocol_list; // super protocols |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3878 | // const struct method_list_t * const instance_methods; |
| 3879 | // const struct method_list_t * const class_methods; |
| 3880 | // const struct method_list_t *optionalInstanceMethods; |
| 3881 | // const struct method_list_t *optionalClassMethods; |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3882 | // const struct _prop_list_t * properties; |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3883 | // const uint32_t size; // sizeof(struct _protocol_t) |
| 3884 | // const uint32_t flags; // = 0 |
| 3885 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3886 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3887 | // Holder for struct _protocol_list_t * |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 3888 | llvm::PATypeHolder ProtocolListTyHolder = llvm::OpaqueType::get(VMContext); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3889 | |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3890 | ProtocolnfABITy = llvm::StructType::get(VMContext, ObjectPtrTy, |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3891 | Int8PtrTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3892 | llvm::PointerType::getUnqual( |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3893 | ProtocolListTyHolder), |
| 3894 | MethodListnfABIPtrTy, |
| 3895 | MethodListnfABIPtrTy, |
| 3896 | MethodListnfABIPtrTy, |
| 3897 | MethodListnfABIPtrTy, |
| 3898 | PropertyListPtrTy, |
| 3899 | IntTy, |
| 3900 | IntTy, |
| 3901 | NULL); |
| 3902 | CGM.getModule().addTypeName("struct._protocol_t", |
| 3903 | ProtocolnfABITy); |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 3904 | |
| 3905 | // struct _protocol_t* |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3906 | ProtocolnfABIPtrTy = llvm::PointerType::getUnqual(ProtocolnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3907 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 3908 | // struct _protocol_list_t { |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3909 | // long protocol_count; // Note, this is 32/64 bit |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 3910 | // struct _protocol_t *[protocol_count]; |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3911 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3912 | ProtocolListnfABITy = llvm::StructType::get(VMContext, LongTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3913 | llvm::ArrayType::get( |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 3914 | ProtocolnfABIPtrTy, 0), |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3915 | NULL); |
| 3916 | CGM.getModule().addTypeName("struct._objc_protocol_list", |
| 3917 | ProtocolListnfABITy); |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 3918 | cast<llvm::OpaqueType>(ProtocolListTyHolder.get())->refineAbstractTypeTo( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3919 | ProtocolListnfABITy); |
| 3920 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3921 | // struct _objc_protocol_list* |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3922 | ProtocolListnfABIPtrTy = llvm::PointerType::getUnqual(ProtocolListnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3923 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3924 | // struct _ivar_t { |
| 3925 | // unsigned long int *offset; // pointer to ivar offset location |
| 3926 | // char *name; |
| 3927 | // char *type; |
| 3928 | // uint32_t alignment; |
| 3929 | // uint32_t size; |
| 3930 | // } |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 3931 | IvarnfABITy = llvm::StructType::get(VMContext, |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3932 | llvm::PointerType::getUnqual(LongTy), |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3933 | Int8PtrTy, |
| 3934 | Int8PtrTy, |
| 3935 | IntTy, |
| 3936 | IntTy, |
| 3937 | NULL); |
| 3938 | CGM.getModule().addTypeName("struct._ivar_t", IvarnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3939 | |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3940 | // struct _ivar_list_t { |
| 3941 | // uint32 entsize; // sizeof(struct _ivar_t) |
| 3942 | // uint32 count; |
| 3943 | // struct _iver_t list[count]; |
| 3944 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3945 | IvarListnfABITy = llvm::StructType::get(VMContext, IntTy, |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 3946 | IntTy, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3947 | llvm::ArrayType::get( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3948 | IvarnfABITy, 0), |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 3949 | NULL); |
| 3950 | CGM.getModule().addTypeName("struct._ivar_list_t", IvarListnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3951 | |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3952 | IvarListnfABIPtrTy = llvm::PointerType::getUnqual(IvarListnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3953 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3954 | // struct _class_ro_t { |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 3955 | // uint32_t const flags; |
| 3956 | // uint32_t const instanceStart; |
| 3957 | // uint32_t const instanceSize; |
| 3958 | // uint32_t const reserved; // only when building for 64bit targets |
| 3959 | // const uint8_t * const ivarLayout; |
| 3960 | // const char *const name; |
| 3961 | // const struct _method_list_t * const baseMethods; |
| 3962 | // const struct _objc_protocol_list *const baseProtocols; |
| 3963 | // const struct _ivar_list_t *const ivars; |
| 3964 | // const uint8_t * const weakIvarLayout; |
| 3965 | // const struct _prop_list_t * const properties; |
| 3966 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3967 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3968 | // FIXME. Add 'reserved' field in 64bit abi mode! |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 3969 | ClassRonfABITy = llvm::StructType::get(VMContext, IntTy, |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3970 | IntTy, |
| 3971 | IntTy, |
| 3972 | Int8PtrTy, |
| 3973 | Int8PtrTy, |
| 3974 | MethodListnfABIPtrTy, |
| 3975 | ProtocolListnfABIPtrTy, |
| 3976 | IvarListnfABIPtrTy, |
| 3977 | Int8PtrTy, |
| 3978 | PropertyListPtrTy, |
| 3979 | NULL); |
| 3980 | CGM.getModule().addTypeName("struct._class_ro_t", |
| 3981 | ClassRonfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3982 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3983 | // ImpnfABITy - LLVM for id (*)(id, SEL, ...) |
| 3984 | std::vector<const llvm::Type*> Params; |
| 3985 | Params.push_back(ObjectPtrTy); |
| 3986 | Params.push_back(SelectorPtrTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 3987 | ImpnfABITy = llvm::PointerType::getUnqual( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3988 | llvm::FunctionType::get(ObjectPtrTy, Params, false)); |
| 3989 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 3990 | // struct _class_t { |
| 3991 | // struct _class_t *isa; |
| 3992 | // struct _class_t * const superclass; |
| 3993 | // void *cache; |
| 3994 | // IMP *vtable; |
| 3995 | // struct class_ro_t *ro; |
| 3996 | // } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 3997 | |
Owen Anderson | 8c8f69e | 2009-08-13 23:27:53 +0000 | [diff] [blame] | 3998 | llvm::PATypeHolder ClassTyHolder = llvm::OpaqueType::get(VMContext); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 3999 | ClassnfABITy = |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4000 | llvm::StructType::get(VMContext, |
| 4001 | llvm::PointerType::getUnqual(ClassTyHolder), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4002 | llvm::PointerType::getUnqual(ClassTyHolder), |
| 4003 | CachePtrTy, |
| 4004 | llvm::PointerType::getUnqual(ImpnfABITy), |
| 4005 | llvm::PointerType::getUnqual(ClassRonfABITy), |
| 4006 | NULL); |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4007 | CGM.getModule().addTypeName("struct._class_t", ClassnfABITy); |
| 4008 | |
| 4009 | cast<llvm::OpaqueType>(ClassTyHolder.get())->refineAbstractTypeTo( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4010 | ClassnfABITy); |
| 4011 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4012 | // LLVM for struct _class_t * |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4013 | ClassnfABIPtrTy = llvm::PointerType::getUnqual(ClassnfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4014 | |
Fariborz Jahanian | d55b6fc | 2009-01-23 01:46:23 +0000 | [diff] [blame] | 4015 | // struct _category_t { |
| 4016 | // const char * const name; |
| 4017 | // struct _class_t *const cls; |
| 4018 | // const struct _method_list_t * const instance_methods; |
| 4019 | // const struct _method_list_t * const class_methods; |
| 4020 | // const struct _protocol_list_t * const protocols; |
| 4021 | // const struct _prop_list_t * const properties; |
Fariborz Jahanian | 45c2ba0 | 2009-01-23 17:41:22 +0000 | [diff] [blame] | 4022 | // } |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4023 | CategorynfABITy = llvm::StructType::get(VMContext, Int8PtrTy, |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4024 | ClassnfABIPtrTy, |
Fariborz Jahanian | 45c2ba0 | 2009-01-23 17:41:22 +0000 | [diff] [blame] | 4025 | MethodListnfABIPtrTy, |
| 4026 | MethodListnfABIPtrTy, |
| 4027 | ProtocolListnfABIPtrTy, |
| 4028 | PropertyListPtrTy, |
| 4029 | NULL); |
| 4030 | CGM.getModule().addTypeName("struct._category_t", CategorynfABITy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4031 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4032 | // New types for nonfragile abi messaging. |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 4033 | CodeGen::CodeGenTypes &Types = CGM.getTypes(); |
| 4034 | ASTContext &Ctx = CGM.getContext(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4035 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4036 | // MessageRefTy - LLVM for: |
| 4037 | // struct _message_ref_t { |
| 4038 | // IMP messenger; |
| 4039 | // SEL name; |
| 4040 | // }; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4041 | |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 4042 | // First the clang type for struct _message_ref_t |
| 4043 | RecordDecl *RD = RecordDecl::Create(Ctx, TagDecl::TK_struct, 0, |
| 4044 | SourceLocation(), |
| 4045 | &Ctx.Idents.get("_message_ref_t")); |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4046 | RD->addDecl(FieldDecl::Create(Ctx, RD, SourceLocation(), 0, |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 4047 | Ctx.VoidPtrTy, 0, 0, false)); |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4048 | RD->addDecl(FieldDecl::Create(Ctx, RD, SourceLocation(), 0, |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 4049 | Ctx.getObjCSelType(), 0, 0, false)); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 4050 | RD->completeDefinition(Ctx); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4051 | |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 4052 | MessageRefCTy = Ctx.getTagDeclType(RD); |
| 4053 | MessageRefCPtrTy = Ctx.getPointerType(MessageRefCTy); |
| 4054 | MessageRefTy = cast<llvm::StructType>(Types.ConvertType(MessageRefCTy)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4055 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4056 | // MessageRefPtrTy - LLVM for struct _message_ref_t* |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4057 | MessageRefPtrTy = llvm::PointerType::getUnqual(MessageRefTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4058 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4059 | // SuperMessageRefTy - LLVM for: |
| 4060 | // struct _super_message_ref_t { |
| 4061 | // SUPER_IMP messenger; |
| 4062 | // SEL name; |
| 4063 | // }; |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4064 | SuperMessageRefTy = llvm::StructType::get(VMContext, ImpnfABITy, |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4065 | SelectorPtrTy, |
| 4066 | NULL); |
| 4067 | CGM.getModule().addTypeName("struct._super_message_ref_t", SuperMessageRefTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4068 | |
Fariborz Jahanian | 2e4672b | 2009-02-03 23:49:23 +0000 | [diff] [blame] | 4069 | // SuperMessageRefPtrTy - LLVM for struct _super_message_ref_t* |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4070 | SuperMessageRefPtrTy = llvm::PointerType::getUnqual(SuperMessageRefTy); |
| 4071 | |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 4072 | |
| 4073 | // struct objc_typeinfo { |
| 4074 | // const void** vtable; // objc_ehtype_vtable + 2 |
| 4075 | // const char* name; // c++ typeinfo string |
| 4076 | // Class cls; |
| 4077 | // }; |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 4078 | EHTypeTy = llvm::StructType::get(VMContext, |
| 4079 | llvm::PointerType::getUnqual(Int8PtrTy), |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 4080 | Int8PtrTy, |
| 4081 | ClassnfABIPtrTy, |
| 4082 | NULL); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 4083 | CGM.getModule().addTypeName("struct._objc_typeinfo", EHTypeTy); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4084 | EHTypePtrTy = llvm::PointerType::getUnqual(EHTypeTy); |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 4085 | } |
| 4086 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4087 | llvm::Function *CGObjCNonFragileABIMac::ModuleInitFunction() { |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4088 | FinishNonFragileABIModule(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4089 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4090 | return NULL; |
| 4091 | } |
| 4092 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4093 | void CGObjCNonFragileABIMac::AddModuleClassList(const |
| 4094 | std::vector<llvm::GlobalValue*> |
| 4095 | &Container, |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4096 | const char *SymbolName, |
| 4097 | const char *SectionName) { |
| 4098 | unsigned NumClasses = Container.size(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4099 | |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4100 | if (!NumClasses) |
| 4101 | return; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4102 | |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4103 | std::vector<llvm::Constant*> Symbols(NumClasses); |
| 4104 | for (unsigned i=0; i<NumClasses; i++) |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 4105 | Symbols[i] = llvm::ConstantExpr::getBitCast(Container[i], |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4106 | ObjCTypes.Int8PtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4107 | llvm::Constant* Init = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4108 | llvm::ConstantArray::get(llvm::ArrayType::get(ObjCTypes.Int8PtrTy, |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4109 | NumClasses), |
| 4110 | Symbols); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4111 | |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4112 | llvm::GlobalVariable *GV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4113 | new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4114 | llvm::GlobalValue::InternalLinkage, |
| 4115 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4116 | SymbolName); |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4117 | GV->setAlignment(8); |
| 4118 | GV->setSection(SectionName); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4119 | CGM.AddUsedGlobal(GV); |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4120 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4121 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4122 | void CGObjCNonFragileABIMac::FinishNonFragileABIModule() { |
| 4123 | // nonfragile abi has no module definition. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4124 | |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4125 | // Build list of all implemented class addresses in array |
Fariborz Jahanian | f87a0cc | 2009-01-30 20:55:31 +0000 | [diff] [blame] | 4126 | // L_OBJC_LABEL_CLASS_$. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4127 | AddModuleClassList(DefinedClasses, |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4128 | "\01L_OBJC_LABEL_CLASS_$", |
| 4129 | "__DATA, __objc_classlist, regular, no_dead_strip"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4130 | AddModuleClassList(DefinedNonLazyClasses, |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 4131 | "\01L_OBJC_LABEL_NONLAZY_CLASS_$", |
| 4132 | "__DATA, __objc_nlclslist, regular, no_dead_strip"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4133 | |
Fariborz Jahanian | f87a0cc | 2009-01-30 20:55:31 +0000 | [diff] [blame] | 4134 | // Build list of all implemented category addresses in array |
| 4135 | // L_OBJC_LABEL_CATEGORY_$. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4136 | AddModuleClassList(DefinedCategories, |
Daniel Dunbar | 463b876 | 2009-05-15 21:48:48 +0000 | [diff] [blame] | 4137 | "\01L_OBJC_LABEL_CATEGORY_$", |
| 4138 | "__DATA, __objc_catlist, regular, no_dead_strip"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4139 | AddModuleClassList(DefinedNonLazyCategories, |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 4140 | "\01L_OBJC_LABEL_NONLAZY_CATEGORY_$", |
| 4141 | "__DATA, __objc_nlcatlist, regular, no_dead_strip"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4142 | |
Fariborz Jahanian | 0f6610e | 2009-01-30 22:07:48 +0000 | [diff] [blame] | 4143 | // static int L_OBJC_IMAGE_INFO[2] = { 0, flags }; |
| 4144 | // FIXME. flags can be 0 | 1 | 2 | 6. For now just use 0 |
| 4145 | std::vector<llvm::Constant*> Values(2); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4146 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, 0); |
Fariborz Jahanian | 067986e | 2009-02-24 21:08:09 +0000 | [diff] [blame] | 4147 | unsigned int flags = 0; |
Fariborz Jahanian | 66a5c2c | 2009-02-24 23:34:44 +0000 | [diff] [blame] | 4148 | // FIXME: Fix and continue? |
| 4149 | if (CGM.getLangOptions().getGCMode() != LangOptions::NonGC) |
| 4150 | flags |= eImageInfo_GarbageCollected; |
| 4151 | if (CGM.getLangOptions().getGCMode() == LangOptions::GCOnly) |
| 4152 | flags |= eImageInfo_GCOnly; |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4153 | Values[1] = llvm::ConstantInt::get(ObjCTypes.IntTy, flags); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 4154 | llvm::Constant* Init = llvm::ConstantArray::get( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4155 | llvm::ArrayType::get(ObjCTypes.IntTy, 2), |
| 4156 | Values); |
Fariborz Jahanian | 0f6610e | 2009-01-30 22:07:48 +0000 | [diff] [blame] | 4157 | llvm::GlobalVariable *IMGV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4158 | new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Fariborz Jahanian | 0f6610e | 2009-01-30 22:07:48 +0000 | [diff] [blame] | 4159 | llvm::GlobalValue::InternalLinkage, |
| 4160 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4161 | "\01L_OBJC_IMAGE_INFO"); |
Fariborz Jahanian | 0f6610e | 2009-01-30 22:07:48 +0000 | [diff] [blame] | 4162 | IMGV->setSection("__DATA, __objc_imageinfo, regular, no_dead_strip"); |
Daniel Dunbar | 325f758 | 2009-04-23 08:03:21 +0000 | [diff] [blame] | 4163 | IMGV->setConstant(true); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4164 | CGM.AddUsedGlobal(IMGV); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4165 | } |
| 4166 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 4167 | /// LegacyDispatchedSelector - Returns true if SEL is not in the list of |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 4168 | /// NonLegacyDispatchMethods; false otherwise. What this means is that |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4169 | /// except for the 19 selectors in the list, we generate 32bit-style |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 4170 | /// message dispatch call for all the rest. |
| 4171 | /// |
| 4172 | bool CGObjCNonFragileABIMac::LegacyDispatchedSelector(Selector Sel) { |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 4173 | if (NonLegacyDispatchMethods.empty()) { |
| 4174 | NonLegacyDispatchMethods.insert(GetNullarySelector("alloc")); |
| 4175 | NonLegacyDispatchMethods.insert(GetNullarySelector("class")); |
| 4176 | NonLegacyDispatchMethods.insert(GetNullarySelector("self")); |
| 4177 | NonLegacyDispatchMethods.insert(GetNullarySelector("isFlipped")); |
| 4178 | NonLegacyDispatchMethods.insert(GetNullarySelector("length")); |
| 4179 | NonLegacyDispatchMethods.insert(GetNullarySelector("count")); |
| 4180 | NonLegacyDispatchMethods.insert(GetNullarySelector("retain")); |
| 4181 | NonLegacyDispatchMethods.insert(GetNullarySelector("release")); |
| 4182 | NonLegacyDispatchMethods.insert(GetNullarySelector("autorelease")); |
| 4183 | NonLegacyDispatchMethods.insert(GetNullarySelector("hash")); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4184 | |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 4185 | NonLegacyDispatchMethods.insert(GetUnarySelector("allocWithZone")); |
| 4186 | NonLegacyDispatchMethods.insert(GetUnarySelector("isKindOfClass")); |
| 4187 | NonLegacyDispatchMethods.insert(GetUnarySelector("respondsToSelector")); |
| 4188 | NonLegacyDispatchMethods.insert(GetUnarySelector("objectForKey")); |
| 4189 | NonLegacyDispatchMethods.insert(GetUnarySelector("objectAtIndex")); |
| 4190 | NonLegacyDispatchMethods.insert(GetUnarySelector("isEqualToString")); |
| 4191 | NonLegacyDispatchMethods.insert(GetUnarySelector("isEqual")); |
| 4192 | NonLegacyDispatchMethods.insert(GetUnarySelector("addObject")); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4193 | // "countByEnumeratingWithState:objects:count" |
Fariborz Jahanian | be53be4 | 2009-05-13 16:19:02 +0000 | [diff] [blame] | 4194 | IdentifierInfo *KeyIdents[] = { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4195 | &CGM.getContext().Idents.get("countByEnumeratingWithState"), |
| 4196 | &CGM.getContext().Idents.get("objects"), |
| 4197 | &CGM.getContext().Idents.get("count") |
Fariborz Jahanian | be53be4 | 2009-05-13 16:19:02 +0000 | [diff] [blame] | 4198 | }; |
| 4199 | NonLegacyDispatchMethods.insert( |
| 4200 | CGM.getContext().Selectors.getSelector(3, KeyIdents)); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 4201 | } |
Fariborz Jahanian | 4523eb0 | 2009-05-12 20:06:41 +0000 | [diff] [blame] | 4202 | return (NonLegacyDispatchMethods.count(Sel) == 0); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 4203 | } |
| 4204 | |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4205 | // Metadata flags |
| 4206 | enum MetaDataDlags { |
| 4207 | CLS = 0x0, |
| 4208 | CLS_META = 0x1, |
| 4209 | CLS_ROOT = 0x2, |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4210 | OBJC2_CLS_HIDDEN = 0x10, |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4211 | CLS_EXCEPTION = 0x20 |
| 4212 | }; |
| 4213 | /// BuildClassRoTInitializer - generate meta-data for: |
| 4214 | /// struct _class_ro_t { |
| 4215 | /// uint32_t const flags; |
| 4216 | /// uint32_t const instanceStart; |
| 4217 | /// uint32_t const instanceSize; |
| 4218 | /// uint32_t const reserved; // only when building for 64bit targets |
| 4219 | /// const uint8_t * const ivarLayout; |
| 4220 | /// const char *const name; |
| 4221 | /// const struct _method_list_t * const baseMethods; |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4222 | /// const struct _protocol_list_t *const baseProtocols; |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4223 | /// const struct _ivar_list_t *const ivars; |
| 4224 | /// const uint8_t * const weakIvarLayout; |
| 4225 | /// const struct _prop_list_t * const properties; |
| 4226 | /// } |
| 4227 | /// |
| 4228 | llvm::GlobalVariable * CGObjCNonFragileABIMac::BuildClassRoTInitializer( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4229 | unsigned flags, |
| 4230 | unsigned InstanceStart, |
| 4231 | unsigned InstanceSize, |
| 4232 | const ObjCImplementationDecl *ID) { |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4233 | std::string ClassName = ID->getNameAsString(); |
| 4234 | std::vector<llvm::Constant*> Values(10); // 11 for 64bit targets! |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4235 | Values[ 0] = llvm::ConstantInt::get(ObjCTypes.IntTy, flags); |
| 4236 | Values[ 1] = llvm::ConstantInt::get(ObjCTypes.IntTy, InstanceStart); |
| 4237 | Values[ 2] = llvm::ConstantInt::get(ObjCTypes.IntTy, InstanceSize); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4238 | // FIXME. For 64bit targets add 0 here. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4239 | Values[ 3] = (flags & CLS_META) ? GetIvarLayoutName(0, ObjCTypes) |
| 4240 | : BuildIvarLayout(ID, true); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4241 | Values[ 4] = GetClassName(ID->getIdentifier()); |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4242 | // const struct _method_list_t * const baseMethods; |
| 4243 | std::vector<llvm::Constant*> Methods; |
| 4244 | std::string MethodListName("\01l_OBJC_$_"); |
| 4245 | if (flags & CLS_META) { |
| 4246 | MethodListName += "CLASS_METHODS_" + ID->getNameAsString(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4247 | for (ObjCImplementationDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4248 | i = ID->classmeth_begin(), e = ID->classmeth_end(); i != e; ++i) { |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4249 | // Class methods should always be defined. |
| 4250 | Methods.push_back(GetMethodConstant(*i)); |
| 4251 | } |
| 4252 | } else { |
| 4253 | MethodListName += "INSTANCE_METHODS_" + ID->getNameAsString(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4254 | for (ObjCImplementationDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4255 | i = ID->instmeth_begin(), e = ID->instmeth_end(); i != e; ++i) { |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4256 | // Instance methods should always be defined. |
| 4257 | Methods.push_back(GetMethodConstant(*i)); |
| 4258 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4259 | for (ObjCImplementationDecl::propimpl_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4260 | i = ID->propimpl_begin(), e = ID->propimpl_end(); i != e; ++i) { |
Fariborz Jahanian | 939abce | 2009-01-28 22:46:49 +0000 | [diff] [blame] | 4261 | ObjCPropertyImplDecl *PID = *i; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4262 | |
Fariborz Jahanian | 939abce | 2009-01-28 22:46:49 +0000 | [diff] [blame] | 4263 | if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize){ |
| 4264 | ObjCPropertyDecl *PD = PID->getPropertyDecl(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4265 | |
Fariborz Jahanian | 939abce | 2009-01-28 22:46:49 +0000 | [diff] [blame] | 4266 | if (ObjCMethodDecl *MD = PD->getGetterMethodDecl()) |
| 4267 | if (llvm::Constant *C = GetMethodConstant(MD)) |
| 4268 | Methods.push_back(C); |
| 4269 | if (ObjCMethodDecl *MD = PD->getSetterMethodDecl()) |
| 4270 | if (llvm::Constant *C = GetMethodConstant(MD)) |
| 4271 | Methods.push_back(C); |
| 4272 | } |
| 4273 | } |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4274 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4275 | Values[ 5] = EmitMethodList(MethodListName, |
| 4276 | "__DATA, __objc_const", Methods); |
| 4277 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4278 | const ObjCInterfaceDecl *OID = ID->getClassInterface(); |
| 4279 | assert(OID && "CGObjCNonFragileABIMac::BuildClassRoTInitializer"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4280 | Values[ 6] = EmitProtocolList("\01l_OBJC_CLASS_PROTOCOLS_$_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4281 | + OID->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4282 | OID->protocol_begin(), |
| 4283 | OID->protocol_end()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4284 | |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4285 | if (flags & CLS_META) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4286 | Values[ 7] = llvm::Constant::getNullValue(ObjCTypes.IvarListnfABIPtrTy); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4287 | else |
| 4288 | Values[ 7] = EmitIvarList(ID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4289 | Values[ 8] = (flags & CLS_META) ? GetIvarLayoutName(0, ObjCTypes) |
| 4290 | : BuildIvarLayout(ID, false); |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 4291 | if (flags & CLS_META) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4292 | Values[ 9] = llvm::Constant::getNullValue(ObjCTypes.PropertyListPtrTy); |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 4293 | else |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4294 | Values[ 9] = EmitPropertyList("\01l_OBJC_$_PROP_LIST_" + ID->getName(), |
| 4295 | ID, ID->getClassInterface(), ObjCTypes); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 4296 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ClassRonfABITy, |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4297 | Values); |
| 4298 | llvm::GlobalVariable *CLASS_RO_GV = |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4299 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassRonfABITy, false, |
| 4300 | llvm::GlobalValue::InternalLinkage, |
| 4301 | Init, |
| 4302 | (flags & CLS_META) ? |
| 4303 | std::string("\01l_OBJC_METACLASS_RO_$_")+ClassName : |
| 4304 | std::string("\01l_OBJC_CLASS_RO_$_")+ClassName); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4305 | CLASS_RO_GV->setAlignment( |
| 4306 | CGM.getTargetData().getPrefTypeAlignment(ObjCTypes.ClassRonfABITy)); |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 4307 | CLASS_RO_GV->setSection("__DATA, __objc_const"); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4308 | return CLASS_RO_GV; |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 4309 | |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4310 | } |
| 4311 | |
| 4312 | /// BuildClassMetaData - This routine defines that to-level meta-data |
| 4313 | /// for the given ClassName for: |
| 4314 | /// struct _class_t { |
| 4315 | /// struct _class_t *isa; |
| 4316 | /// struct _class_t * const superclass; |
| 4317 | /// void *cache; |
| 4318 | /// IMP *vtable; |
| 4319 | /// struct class_ro_t *ro; |
| 4320 | /// } |
| 4321 | /// |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4322 | llvm::GlobalVariable * CGObjCNonFragileABIMac::BuildClassMetaData( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4323 | std::string &ClassName, |
| 4324 | llvm::Constant *IsAGV, |
| 4325 | llvm::Constant *SuperClassGV, |
| 4326 | llvm::Constant *ClassRoGV, |
| 4327 | bool HiddenVisibility) { |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4328 | std::vector<llvm::Constant*> Values(5); |
| 4329 | Values[0] = IsAGV; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4330 | Values[1] = SuperClassGV; |
| 4331 | if (!Values[1]) |
| 4332 | Values[1] = llvm::Constant::getNullValue(ObjCTypes.ClassnfABIPtrTy); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4333 | Values[2] = ObjCEmptyCacheVar; // &ObjCEmptyCacheVar |
| 4334 | Values[3] = ObjCEmptyVtableVar; // &ObjCEmptyVtableVar |
| 4335 | Values[4] = ClassRoGV; // &CLASS_RO_GV |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4336 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ClassnfABITy, |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4337 | Values); |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 4338 | llvm::GlobalVariable *GV = GetClassGlobal(ClassName); |
| 4339 | GV->setInitializer(Init); |
Fariborz Jahanian | dd0db2a | 2009-01-31 01:07:39 +0000 | [diff] [blame] | 4340 | GV->setSection("__DATA, __objc_data"); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4341 | GV->setAlignment( |
| 4342 | CGM.getTargetData().getPrefTypeAlignment(ObjCTypes.ClassnfABITy)); |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 4343 | if (HiddenVisibility) |
| 4344 | GV->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4345 | return GV; |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4346 | } |
| 4347 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4348 | bool |
Fariborz Jahanian | ecfbdcb | 2009-05-21 01:03:45 +0000 | [diff] [blame] | 4349 | CGObjCNonFragileABIMac::ImplementationIsNonLazy(const ObjCImplDecl *OD) const { |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4350 | return OD->getClassMethod(GetNullarySelector("load")) != 0; |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 4351 | } |
| 4352 | |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 4353 | void CGObjCNonFragileABIMac::GetClassSizeInfo(const ObjCImplementationDecl *OID, |
Daniel Dunbar | b02532a | 2009-04-19 23:41:48 +0000 | [diff] [blame] | 4354 | uint32_t &InstanceStart, |
| 4355 | uint32_t &InstanceSize) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4356 | const ASTRecordLayout &RL = |
Daniel Dunbar | b4c79e0 | 2009-05-04 21:26:30 +0000 | [diff] [blame] | 4357 | CGM.getContext().getASTObjCImplementationLayout(OID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4358 | |
Daniel Dunbar | 6e8575b | 2009-05-04 23:23:09 +0000 | [diff] [blame] | 4359 | // InstanceSize is really instance end. |
Anders Carlsson | 243a685 | 2009-07-18 21:26:44 +0000 | [diff] [blame] | 4360 | InstanceSize = llvm::RoundUpToAlignment(RL.getDataSize(), 8) / 8; |
Daniel Dunbar | 6e8575b | 2009-05-04 23:23:09 +0000 | [diff] [blame] | 4361 | |
| 4362 | // If there are no fields, the start is the same as the end. |
| 4363 | if (!RL.getFieldCount()) |
| 4364 | InstanceStart = InstanceSize; |
| 4365 | else |
| 4366 | InstanceStart = RL.getFieldOffset(0) / 8; |
Daniel Dunbar | b02532a | 2009-04-19 23:41:48 +0000 | [diff] [blame] | 4367 | } |
| 4368 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4369 | void CGObjCNonFragileABIMac::GenerateClass(const ObjCImplementationDecl *ID) { |
| 4370 | std::string ClassName = ID->getNameAsString(); |
| 4371 | if (!ObjCEmptyCacheVar) { |
| 4372 | ObjCEmptyCacheVar = new llvm::GlobalVariable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4373 | CGM.getModule(), |
| 4374 | ObjCTypes.CacheTy, |
| 4375 | false, |
| 4376 | llvm::GlobalValue::ExternalLinkage, |
| 4377 | 0, |
| 4378 | "_objc_empty_cache"); |
| 4379 | |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4380 | ObjCEmptyVtableVar = new llvm::GlobalVariable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4381 | CGM.getModule(), |
| 4382 | ObjCTypes.ImpnfABITy, |
| 4383 | false, |
| 4384 | llvm::GlobalValue::ExternalLinkage, |
| 4385 | 0, |
| 4386 | "_objc_empty_vtable"); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4387 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4388 | assert(ID->getClassInterface() && |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4389 | "CGObjCNonFragileABIMac::GenerateClass - class is 0"); |
Daniel Dunbar | 6c1aac8 | 2009-04-20 20:18:54 +0000 | [diff] [blame] | 4390 | // FIXME: Is this correct (that meta class size is never computed)? |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4391 | uint32_t InstanceStart = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 4392 | CGM.getTargetData().getTypeAllocSize(ObjCTypes.ClassnfABITy); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4393 | uint32_t InstanceSize = InstanceStart; |
| 4394 | uint32_t flags = CLS_META; |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 4395 | std::string ObjCMetaClassName(getMetaclassSymbolPrefix()); |
| 4396 | std::string ObjCClassName(getClassSymbolPrefix()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4397 | |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4398 | llvm::GlobalVariable *SuperClassGV, *IsAGV; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4399 | |
| 4400 | bool classIsHidden = |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 4401 | CGM.getDeclVisibilityMode(ID->getClassInterface()) == LangOptions::Hidden; |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 4402 | if (classIsHidden) |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4403 | flags |= OBJC2_CLS_HIDDEN; |
| 4404 | if (!ID->getClassInterface()->getSuperClass()) { |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4405 | // class is root |
| 4406 | flags |= CLS_ROOT; |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 4407 | SuperClassGV = GetClassGlobal(ObjCClassName + ClassName); |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 4408 | IsAGV = GetClassGlobal(ObjCMetaClassName + ClassName); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4409 | } else { |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4410 | // Has a root. Current class is not a root. |
Fariborz Jahanian | fab98c4 | 2009-02-26 18:23:47 +0000 | [diff] [blame] | 4411 | const ObjCInterfaceDecl *Root = ID->getClassInterface(); |
| 4412 | while (const ObjCInterfaceDecl *Super = Root->getSuperClass()) |
| 4413 | Root = Super; |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 4414 | IsAGV = GetClassGlobal(ObjCMetaClassName + Root->getNameAsString()); |
Fariborz Jahanian | fab98c4 | 2009-02-26 18:23:47 +0000 | [diff] [blame] | 4415 | // work on super class metadata symbol. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4416 | std::string SuperClassName = |
Fariborz Jahanian | fab98c4 | 2009-02-26 18:23:47 +0000 | [diff] [blame] | 4417 | ObjCMetaClassName + ID->getClassInterface()->getSuperClass()->getNameAsString(); |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 4418 | SuperClassGV = GetClassGlobal(SuperClassName); |
Fariborz Jahanian | 058a1b7 | 2009-01-24 20:21:50 +0000 | [diff] [blame] | 4419 | } |
| 4420 | llvm::GlobalVariable *CLASS_RO_GV = BuildClassRoTInitializer(flags, |
| 4421 | InstanceStart, |
| 4422 | InstanceSize,ID); |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4423 | std::string TClassName = ObjCMetaClassName + ClassName; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4424 | llvm::GlobalVariable *MetaTClass = |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 4425 | BuildClassMetaData(TClassName, IsAGV, SuperClassGV, CLASS_RO_GV, |
| 4426 | classIsHidden); |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 4427 | |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4428 | // Metadata for the class |
| 4429 | flags = CLS; |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 4430 | if (classIsHidden) |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4431 | flags |= OBJC2_CLS_HIDDEN; |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 4432 | |
Douglas Gregor | 68584ed | 2009-06-18 16:11:24 +0000 | [diff] [blame] | 4433 | if (hasObjCExceptionAttribute(CGM.getContext(), ID->getClassInterface())) |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 4434 | flags |= CLS_EXCEPTION; |
| 4435 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4436 | if (!ID->getClassInterface()->getSuperClass()) { |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4437 | flags |= CLS_ROOT; |
| 4438 | SuperClassGV = 0; |
Chris Lattner | b7b58b1 | 2009-04-19 06:02:28 +0000 | [diff] [blame] | 4439 | } else { |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4440 | // Has a root. Current class is not a root. |
Fariborz Jahanian | fab98c4 | 2009-02-26 18:23:47 +0000 | [diff] [blame] | 4441 | std::string RootClassName = |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4442 | ID->getClassInterface()->getSuperClass()->getNameAsString(); |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 4443 | SuperClassGV = GetClassGlobal(ObjCClassName + RootClassName); |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4444 | } |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 4445 | GetClassSizeInfo(ID, InstanceStart, InstanceSize); |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4446 | CLASS_RO_GV = BuildClassRoTInitializer(flags, |
Fariborz Jahanian | f6a077e | 2009-01-24 23:43:01 +0000 | [diff] [blame] | 4447 | InstanceStart, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4448 | InstanceSize, |
Fariborz Jahanian | f6a077e | 2009-01-24 23:43:01 +0000 | [diff] [blame] | 4449 | ID); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4450 | |
Fariborz Jahanian | 84394a5 | 2009-01-24 21:21:53 +0000 | [diff] [blame] | 4451 | TClassName = ObjCClassName + ClassName; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4452 | llvm::GlobalVariable *ClassMD = |
Fariborz Jahanian | cf55516 | 2009-01-31 00:59:10 +0000 | [diff] [blame] | 4453 | BuildClassMetaData(TClassName, MetaTClass, SuperClassGV, CLASS_RO_GV, |
| 4454 | classIsHidden); |
Fariborz Jahanian | f87a0cc | 2009-01-30 20:55:31 +0000 | [diff] [blame] | 4455 | DefinedClasses.push_back(ClassMD); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 4456 | |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 4457 | // Determine if this class is also "non-lazy". |
| 4458 | if (ImplementationIsNonLazy(ID)) |
| 4459 | DefinedNonLazyClasses.push_back(ClassMD); |
| 4460 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 4461 | // Force the definition of the EHType if necessary. |
| 4462 | if (flags & CLS_EXCEPTION) |
| 4463 | GetInterfaceEHType(ID->getClassInterface(), true); |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 4464 | } |
| 4465 | |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 4466 | /// GenerateProtocolRef - This routine is called to generate code for |
| 4467 | /// a protocol reference expression; as in: |
| 4468 | /// @code |
| 4469 | /// @protocol(Proto1); |
| 4470 | /// @endcode |
| 4471 | /// It generates a weak reference to l_OBJC_PROTOCOL_REFERENCE_$_Proto1 |
| 4472 | /// which will hold address of the protocol meta-data. |
| 4473 | /// |
| 4474 | llvm::Value *CGObjCNonFragileABIMac::GenerateProtocolRef(CGBuilderTy &Builder, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4475 | const ObjCProtocolDecl *PD) { |
| 4476 | |
Fariborz Jahanian | 960cd06 | 2009-04-10 18:47:34 +0000 | [diff] [blame] | 4477 | // This routine is called for @protocol only. So, we must build definition |
| 4478 | // of protocol's meta-data (not a reference to it!) |
| 4479 | // |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4480 | llvm::Constant *Init = |
| 4481 | llvm::ConstantExpr::getBitCast(GetOrEmitProtocol(PD), |
| 4482 | ObjCTypes.ExternalProtocolPtrTy); |
| 4483 | |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 4484 | std::string ProtocolName("\01l_OBJC_PROTOCOL_REFERENCE_$_"); |
| 4485 | ProtocolName += PD->getNameAsCString(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4486 | |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 4487 | llvm::GlobalVariable *PTGV = CGM.getModule().getGlobalVariable(ProtocolName); |
| 4488 | if (PTGV) |
| 4489 | return Builder.CreateLoad(PTGV, false, "tmp"); |
| 4490 | PTGV = new llvm::GlobalVariable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4491 | CGM.getModule(), |
| 4492 | Init->getType(), false, |
| 4493 | llvm::GlobalValue::WeakAnyLinkage, |
| 4494 | Init, |
| 4495 | ProtocolName); |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 4496 | PTGV->setSection("__DATA, __objc_protorefs, coalesced, no_dead_strip"); |
| 4497 | PTGV->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4498 | CGM.AddUsedGlobal(PTGV); |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 4499 | return Builder.CreateLoad(PTGV, false, "tmp"); |
| 4500 | } |
| 4501 | |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 4502 | /// GenerateCategory - Build metadata for a category implementation. |
| 4503 | /// struct _category_t { |
| 4504 | /// const char * const name; |
| 4505 | /// struct _class_t *const cls; |
| 4506 | /// const struct _method_list_t * const instance_methods; |
| 4507 | /// const struct _method_list_t * const class_methods; |
| 4508 | /// const struct _protocol_list_t * const protocols; |
| 4509 | /// const struct _prop_list_t * const properties; |
| 4510 | /// } |
| 4511 | /// |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 4512 | void CGObjCNonFragileABIMac::GenerateCategory(const ObjCCategoryImplDecl *OCD) { |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 4513 | const ObjCInterfaceDecl *Interface = OCD->getClassInterface(); |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 4514 | const char *Prefix = "\01l_OBJC_$_CATEGORY_"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4515 | std::string ExtCatName(Prefix + Interface->getNameAsString()+ |
| 4516 | "_$_" + OCD->getNameAsString()); |
| 4517 | std::string ExtClassName(getClassSymbolPrefix() + |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 4518 | Interface->getNameAsString()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4519 | |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 4520 | std::vector<llvm::Constant*> Values(6); |
| 4521 | Values[0] = GetClassName(OCD->getIdentifier()); |
| 4522 | // meta-class entry symbol |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 4523 | llvm::GlobalVariable *ClassGV = GetClassGlobal(ExtClassName); |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 4524 | Values[1] = ClassGV; |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 4525 | std::vector<llvm::Constant*> Methods; |
| 4526 | std::string MethodListName(Prefix); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4527 | MethodListName += "INSTANCE_METHODS_" + Interface->getNameAsString() + |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 4528 | "_$_" + OCD->getNameAsString(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4529 | |
| 4530 | for (ObjCCategoryImplDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4531 | i = OCD->instmeth_begin(), e = OCD->instmeth_end(); i != e; ++i) { |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 4532 | // Instance methods should always be defined. |
| 4533 | Methods.push_back(GetMethodConstant(*i)); |
| 4534 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4535 | |
| 4536 | Values[2] = EmitMethodList(MethodListName, |
| 4537 | "__DATA, __objc_const", |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 4538 | Methods); |
| 4539 | |
| 4540 | MethodListName = Prefix; |
| 4541 | MethodListName += "CLASS_METHODS_" + Interface->getNameAsString() + "_$_" + |
| 4542 | OCD->getNameAsString(); |
| 4543 | Methods.clear(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4544 | for (ObjCCategoryImplDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4545 | i = OCD->classmeth_begin(), e = OCD->classmeth_end(); i != e; ++i) { |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 4546 | // Class methods should always be defined. |
| 4547 | Methods.push_back(GetMethodConstant(*i)); |
| 4548 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4549 | |
| 4550 | Values[3] = EmitMethodList(MethodListName, |
| 4551 | "__DATA, __objc_const", |
Fariborz Jahanian | f6317dd | 2009-01-26 22:58:07 +0000 | [diff] [blame] | 4552 | Methods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4553 | const ObjCCategoryDecl *Category = |
Fariborz Jahanian | 5de14dc | 2009-01-28 22:18:42 +0000 | [diff] [blame] | 4554 | Interface->FindCategoryDeclaration(OCD->getIdentifier()); |
Fariborz Jahanian | 943ed6f | 2009-02-13 17:52:22 +0000 | [diff] [blame] | 4555 | if (Category) { |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4556 | llvm::SmallString<256> ExtName; |
| 4557 | llvm::raw_svector_ostream(ExtName) << Interface->getName() << "_$_" |
| 4558 | << OCD->getName(); |
Fariborz Jahanian | 943ed6f | 2009-02-13 17:52:22 +0000 | [diff] [blame] | 4559 | Values[4] = EmitProtocolList("\01l_OBJC_CATEGORY_PROTOCOLS_$_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4560 | + Interface->getName() + "_$_" |
| 4561 | + Category->getName(), |
Fariborz Jahanian | 943ed6f | 2009-02-13 17:52:22 +0000 | [diff] [blame] | 4562 | Category->protocol_begin(), |
| 4563 | Category->protocol_end()); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4564 | Values[5] = EmitPropertyList("\01l_OBJC_$_PROP_LIST_" + ExtName.str(), |
| 4565 | OCD, Category, ObjCTypes); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 4566 | } else { |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4567 | Values[4] = llvm::Constant::getNullValue(ObjCTypes.ProtocolListnfABIPtrTy); |
| 4568 | Values[5] = llvm::Constant::getNullValue(ObjCTypes.PropertyListPtrTy); |
Fariborz Jahanian | 943ed6f | 2009-02-13 17:52:22 +0000 | [diff] [blame] | 4569 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4570 | |
| 4571 | llvm::Constant *Init = |
| 4572 | llvm::ConstantStruct::get(ObjCTypes.CategorynfABITy, |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 4573 | Values); |
| 4574 | llvm::GlobalVariable *GCATV |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4575 | = new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.CategorynfABITy, |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 4576 | false, |
| 4577 | llvm::GlobalValue::InternalLinkage, |
| 4578 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4579 | ExtCatName); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4580 | GCATV->setAlignment( |
| 4581 | CGM.getTargetData().getPrefTypeAlignment(ObjCTypes.CategorynfABITy)); |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 4582 | GCATV->setSection("__DATA, __objc_const"); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4583 | CGM.AddUsedGlobal(GCATV); |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 4584 | DefinedCategories.push_back(GCATV); |
Daniel Dunbar | 74d4b12 | 2009-05-15 22:33:15 +0000 | [diff] [blame] | 4585 | |
| 4586 | // Determine if this category is also "non-lazy". |
| 4587 | if (ImplementationIsNonLazy(OCD)) |
| 4588 | DefinedNonLazyCategories.push_back(GCATV); |
Fariborz Jahanian | eb062d9 | 2009-01-26 18:32:24 +0000 | [diff] [blame] | 4589 | } |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4590 | |
| 4591 | /// GetMethodConstant - Return a struct objc_method constant for the |
| 4592 | /// given method if it has been defined. The result is null if the |
| 4593 | /// method has not been defined. The return value has type MethodPtrTy. |
| 4594 | llvm::Constant *CGObjCNonFragileABIMac::GetMethodConstant( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4595 | const ObjCMethodDecl *MD) { |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4596 | // FIXME: Use DenseMap::lookup |
| 4597 | llvm::Function *Fn = MethodDefinitions[MD]; |
| 4598 | if (!Fn) |
| 4599 | return 0; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4600 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4601 | std::vector<llvm::Constant*> Method(3); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4602 | Method[0] = |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 4603 | llvm::ConstantExpr::getBitCast(GetMethodVarName(MD->getSelector()), |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4604 | ObjCTypes.SelectorPtrTy); |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4605 | Method[1] = GetMethodVarType(MD); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 4606 | Method[2] = llvm::ConstantExpr::getBitCast(Fn, ObjCTypes.Int8PtrTy); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 4607 | return llvm::ConstantStruct::get(ObjCTypes.MethodTy, Method); |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4608 | } |
| 4609 | |
| 4610 | /// EmitMethodList - Build meta-data for method declarations |
| 4611 | /// struct _method_list_t { |
| 4612 | /// uint32_t entsize; // sizeof(struct _objc_method) |
| 4613 | /// uint32_t method_count; |
| 4614 | /// struct _objc_method method_list[method_count]; |
| 4615 | /// } |
| 4616 | /// |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4617 | llvm::Constant *CGObjCNonFragileABIMac::EmitMethodList(llvm::Twine Name, |
| 4618 | const char *Section, |
| 4619 | const ConstantVector &Methods) { |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4620 | // Return null for empty list. |
| 4621 | if (Methods.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4622 | return llvm::Constant::getNullValue(ObjCTypes.MethodListnfABIPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4623 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4624 | std::vector<llvm::Constant*> Values(3); |
| 4625 | // sizeof(struct _objc_method) |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 4626 | unsigned Size = CGM.getTargetData().getTypeAllocSize(ObjCTypes.MethodTy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4627 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4628 | // method_count |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4629 | Values[1] = llvm::ConstantInt::get(ObjCTypes.IntTy, Methods.size()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4630 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.MethodTy, |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4631 | Methods.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 4632 | Values[2] = llvm::ConstantArray::get(AT, Methods); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 4633 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4634 | |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4635 | llvm::GlobalVariable *GV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4636 | new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4637 | llvm::GlobalValue::InternalLinkage, |
| 4638 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4639 | Name); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4640 | GV->setAlignment( |
| 4641 | CGM.getTargetData().getPrefTypeAlignment(Init->getType())); |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4642 | GV->setSection(Section); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4643 | CGM.AddUsedGlobal(GV); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 4644 | return llvm::ConstantExpr::getBitCast(GV, |
Fariborz Jahanian | 493dab7 | 2009-01-26 21:38:32 +0000 | [diff] [blame] | 4645 | ObjCTypes.MethodListnfABIPtrTy); |
| 4646 | } |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4647 | |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 4648 | /// ObjCIvarOffsetVariable - Returns the ivar offset variable for |
| 4649 | /// the given ivar. |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 4650 | llvm::GlobalVariable * CGObjCNonFragileABIMac::ObjCIvarOffsetVariable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4651 | const ObjCInterfaceDecl *ID, |
| 4652 | const ObjCIvarDecl *Ivar) { |
Daniel Dunbar | a81419d | 2009-05-05 00:36:57 +0000 | [diff] [blame] | 4653 | // FIXME: We shouldn't need to do this lookup. |
| 4654 | unsigned Index; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4655 | const ObjCInterfaceDecl *Container = |
Daniel Dunbar | a81419d | 2009-05-05 00:36:57 +0000 | [diff] [blame] | 4656 | FindIvarInterface(CGM.getContext(), ID, Ivar, Index); |
| 4657 | assert(Container && "Unable to find ivar container!"); |
| 4658 | std::string Name = "OBJC_IVAR_$_" + Container->getNameAsString() + |
Douglas Gregor | 6ab3524 | 2009-04-09 21:40:53 +0000 | [diff] [blame] | 4659 | '.' + Ivar->getNameAsString(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4660 | llvm::GlobalVariable *IvarOffsetGV = |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 4661 | CGM.getModule().getGlobalVariable(Name); |
| 4662 | if (!IvarOffsetGV) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4663 | IvarOffsetGV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4664 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.LongTy, |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 4665 | false, |
| 4666 | llvm::GlobalValue::ExternalLinkage, |
| 4667 | 0, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4668 | Name); |
Fariborz Jahanian | ed157d3 | 2009-02-10 20:21:06 +0000 | [diff] [blame] | 4669 | return IvarOffsetGV; |
| 4670 | } |
| 4671 | |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 4672 | llvm::Constant * CGObjCNonFragileABIMac::EmitIvarOffsetVar( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4673 | const ObjCInterfaceDecl *ID, |
| 4674 | const ObjCIvarDecl *Ivar, |
| 4675 | unsigned long int Offset) { |
Daniel Dunbar | 737c502 | 2009-04-19 00:44:02 +0000 | [diff] [blame] | 4676 | llvm::GlobalVariable *IvarOffsetGV = ObjCIvarOffsetVariable(ID, Ivar); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4677 | IvarOffsetGV->setInitializer(llvm::ConstantInt::get(ObjCTypes.LongTy, |
Daniel Dunbar | 737c502 | 2009-04-19 00:44:02 +0000 | [diff] [blame] | 4678 | Offset)); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4679 | IvarOffsetGV->setAlignment( |
Fariborz Jahanian | 45012a7 | 2009-02-03 00:09:52 +0000 | [diff] [blame] | 4680 | CGM.getTargetData().getPrefTypeAlignment(ObjCTypes.LongTy)); |
Daniel Dunbar | 737c502 | 2009-04-19 00:44:02 +0000 | [diff] [blame] | 4681 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 4682 | // FIXME: This matches gcc, but shouldn't the visibility be set on the use as |
| 4683 | // well (i.e., in ObjCIvarOffsetVariable). |
Daniel Dunbar | 737c502 | 2009-04-19 00:44:02 +0000 | [diff] [blame] | 4684 | if (Ivar->getAccessControl() == ObjCIvarDecl::Private || |
| 4685 | Ivar->getAccessControl() == ObjCIvarDecl::Package || |
| 4686 | CGM.getDeclVisibilityMode(ID) == LangOptions::Hidden) |
Fariborz Jahanian | 2fa5a27 | 2009-01-28 01:36:42 +0000 | [diff] [blame] | 4687 | IvarOffsetGV->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 4688 | else |
Fariborz Jahanian | 77c9fd2 | 2009-04-06 18:30:00 +0000 | [diff] [blame] | 4689 | IvarOffsetGV->setVisibility(llvm::GlobalValue::DefaultVisibility); |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 4690 | IvarOffsetGV->setSection("__DATA, __objc_const"); |
Fariborz Jahanian | 45012a7 | 2009-02-03 00:09:52 +0000 | [diff] [blame] | 4691 | return IvarOffsetGV; |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 4692 | } |
| 4693 | |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4694 | /// EmitIvarList - Emit the ivar list for the given |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 4695 | /// implementation. The return value has type |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4696 | /// IvarListnfABIPtrTy. |
| 4697 | /// struct _ivar_t { |
| 4698 | /// unsigned long int *offset; // pointer to ivar offset location |
| 4699 | /// char *name; |
| 4700 | /// char *type; |
| 4701 | /// uint32_t alignment; |
| 4702 | /// uint32_t size; |
| 4703 | /// } |
| 4704 | /// struct _ivar_list_t { |
| 4705 | /// uint32 entsize; // sizeof(struct _ivar_t) |
| 4706 | /// uint32 count; |
| 4707 | /// struct _iver_t list[count]; |
| 4708 | /// } |
| 4709 | /// |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 4710 | |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4711 | llvm::Constant *CGObjCNonFragileABIMac::EmitIvarList( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4712 | const ObjCImplementationDecl *ID) { |
| 4713 | |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4714 | std::vector<llvm::Constant*> Ivars, Ivar(5); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4715 | |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4716 | const ObjCInterfaceDecl *OID = ID->getClassInterface(); |
| 4717 | assert(OID && "CGObjCNonFragileABIMac::EmitIvarList - null interface"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4718 | |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 4719 | // FIXME. Consolidate this with similar code in GenerateClass. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4720 | |
Daniel Dunbar | 91636d6 | 2009-04-20 00:33:43 +0000 | [diff] [blame] | 4721 | // Collect declared and synthesized ivars in a small vector. |
Fariborz Jahanian | 1819188 | 2009-03-31 18:11:23 +0000 | [diff] [blame] | 4722 | llvm::SmallVector<ObjCIvarDecl*, 16> OIvars; |
Fariborz Jahanian | 8e6ac1d | 2009-06-04 01:19:09 +0000 | [diff] [blame] | 4723 | CGM.getContext().ShallowCollectObjCIvars(OID, OIvars); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4724 | |
Daniel Dunbar | 3e5f0d8 | 2009-04-20 06:54:31 +0000 | [diff] [blame] | 4725 | for (unsigned i = 0, e = OIvars.size(); i != e; ++i) { |
| 4726 | ObjCIvarDecl *IVD = OIvars[i]; |
Fariborz Jahanian | 8e6ac1d | 2009-06-04 01:19:09 +0000 | [diff] [blame] | 4727 | // Ignore unnamed bit-fields. |
| 4728 | if (!IVD->getDeclName()) |
| 4729 | continue; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4730 | Ivar[0] = EmitIvarOffsetVar(ID->getClassInterface(), IVD, |
Daniel Dunbar | 9f89f2b | 2009-05-03 12:57:56 +0000 | [diff] [blame] | 4731 | ComputeIvarBaseOffset(CGM, ID, IVD)); |
Daniel Dunbar | 3fea0c0 | 2009-04-22 08:22:17 +0000 | [diff] [blame] | 4732 | Ivar[1] = GetMethodVarName(IVD->getIdentifier()); |
| 4733 | Ivar[2] = GetMethodVarType(IVD); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4734 | const llvm::Type *FieldTy = |
Daniel Dunbar | 3fea0c0 | 2009-04-22 08:22:17 +0000 | [diff] [blame] | 4735 | CGM.getTypes().ConvertTypeForMem(IVD->getType()); |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 4736 | unsigned Size = CGM.getTargetData().getTypeAllocSize(FieldTy); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4737 | unsigned Align = CGM.getContext().getPreferredTypeAlign( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4738 | IVD->getType().getTypePtr()) >> 3; |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4739 | Align = llvm::Log2_32(Align); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4740 | Ivar[3] = llvm::ConstantInt::get(ObjCTypes.IntTy, Align); |
Daniel Dunbar | 91636d6 | 2009-04-20 00:33:43 +0000 | [diff] [blame] | 4741 | // NOTE. Size of a bitfield does not match gcc's, because of the |
| 4742 | // way bitfields are treated special in each. But I am told that |
| 4743 | // 'size' for bitfield ivars is ignored by the runtime so it does |
| 4744 | // not matter. If it matters, there is enough info to get the |
| 4745 | // bitfield right! |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4746 | Ivar[4] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 4747 | Ivars.push_back(llvm::ConstantStruct::get(ObjCTypes.IvarnfABITy, Ivar)); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4748 | } |
| 4749 | // Return null for empty list. |
| 4750 | if (Ivars.empty()) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4751 | return llvm::Constant::getNullValue(ObjCTypes.IvarListnfABIPtrTy); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4752 | std::vector<llvm::Constant*> Values(3); |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 4753 | unsigned Size = CGM.getTargetData().getTypeAllocSize(ObjCTypes.IvarnfABITy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4754 | Values[0] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
| 4755 | Values[1] = llvm::ConstantInt::get(ObjCTypes.IntTy, Ivars.size()); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4756 | llvm::ArrayType *AT = llvm::ArrayType::get(ObjCTypes.IvarnfABITy, |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4757 | Ivars.size()); |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 4758 | Values[2] = llvm::ConstantArray::get(AT, Ivars); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 4759 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4760 | const char *Prefix = "\01l_OBJC_$_INSTANCE_VARIABLES_"; |
| 4761 | llvm::GlobalVariable *GV = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4762 | new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Fariborz Jahanian | 98abf4b | 2009-01-27 19:38:51 +0000 | [diff] [blame] | 4763 | llvm::GlobalValue::InternalLinkage, |
| 4764 | Init, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4765 | Prefix + OID->getName()); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4766 | GV->setAlignment( |
| 4767 | CGM.getTargetData().getPrefTypeAlignment(Init->getType())); |
Fariborz Jahanian | 1bf0afb | 2009-01-28 01:05:23 +0000 | [diff] [blame] | 4768 | GV->setSection("__DATA, __objc_const"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4769 | |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4770 | CGM.AddUsedGlobal(GV); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 4771 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.IvarListnfABIPtrTy); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4772 | } |
| 4773 | |
| 4774 | llvm::Constant *CGObjCNonFragileABIMac::GetOrEmitProtocolRef( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4775 | const ObjCProtocolDecl *PD) { |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4776 | llvm::GlobalVariable *&Entry = Protocols[PD->getIdentifier()]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4777 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4778 | if (!Entry) { |
| 4779 | // We use the initializer as a marker of whether this is a forward |
| 4780 | // reference or not. At module finalization we add the empty |
| 4781 | // contents for protocols which were referenced but never defined. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4782 | Entry = |
| 4783 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ProtocolnfABITy, false, |
| 4784 | llvm::GlobalValue::ExternalLinkage, |
| 4785 | 0, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4786 | "\01l_OBJC_PROTOCOL_$_" + PD->getName()); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4787 | Entry->setSection("__DATA,__datacoal_nt,coalesced"); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4788 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4789 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4790 | return Entry; |
| 4791 | } |
| 4792 | |
| 4793 | /// GetOrEmitProtocol - Generate the protocol meta-data: |
| 4794 | /// @code |
| 4795 | /// struct _protocol_t { |
| 4796 | /// id isa; // NULL |
| 4797 | /// const char * const protocol_name; |
| 4798 | /// const struct _protocol_list_t * protocol_list; // super protocols |
| 4799 | /// const struct method_list_t * const instance_methods; |
| 4800 | /// const struct method_list_t * const class_methods; |
| 4801 | /// const struct method_list_t *optionalInstanceMethods; |
| 4802 | /// const struct method_list_t *optionalClassMethods; |
| 4803 | /// const struct _prop_list_t * properties; |
| 4804 | /// const uint32_t size; // sizeof(struct _protocol_t) |
| 4805 | /// const uint32_t flags; // = 0 |
| 4806 | /// } |
| 4807 | /// @endcode |
| 4808 | /// |
| 4809 | |
| 4810 | llvm::Constant *CGObjCNonFragileABIMac::GetOrEmitProtocol( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4811 | const ObjCProtocolDecl *PD) { |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4812 | llvm::GlobalVariable *&Entry = Protocols[PD->getIdentifier()]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4813 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4814 | // Early exit if a defining object has already been generated. |
| 4815 | if (Entry && Entry->hasInitializer()) |
| 4816 | return Entry; |
| 4817 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4818 | // Construct method lists. |
| 4819 | std::vector<llvm::Constant*> InstanceMethods, ClassMethods; |
| 4820 | std::vector<llvm::Constant*> OptInstanceMethods, OptClassMethods; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4821 | for (ObjCProtocolDecl::instmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4822 | i = PD->instmeth_begin(), e = PD->instmeth_end(); i != e; ++i) { |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4823 | ObjCMethodDecl *MD = *i; |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 4824 | llvm::Constant *C = GetMethodDescriptionConstant(MD); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4825 | if (MD->getImplementationControl() == ObjCMethodDecl::Optional) { |
| 4826 | OptInstanceMethods.push_back(C); |
| 4827 | } else { |
| 4828 | InstanceMethods.push_back(C); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4829 | } |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4830 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4831 | |
| 4832 | for (ObjCProtocolDecl::classmeth_iterator |
Argyrios Kyrtzidis | 17945a0 | 2009-06-30 02:36:12 +0000 | [diff] [blame] | 4833 | i = PD->classmeth_begin(), e = PD->classmeth_end(); i != e; ++i) { |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4834 | ObjCMethodDecl *MD = *i; |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 4835 | llvm::Constant *C = GetMethodDescriptionConstant(MD); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4836 | if (MD->getImplementationControl() == ObjCMethodDecl::Optional) { |
| 4837 | OptClassMethods.push_back(C); |
| 4838 | } else { |
| 4839 | ClassMethods.push_back(C); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4840 | } |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4841 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4842 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4843 | std::vector<llvm::Constant*> Values(10); |
| 4844 | // isa is NULL |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4845 | Values[0] = llvm::Constant::getNullValue(ObjCTypes.ObjectPtrTy); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4846 | Values[1] = GetClassName(PD->getIdentifier()); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4847 | Values[2] = EmitProtocolList("\01l_OBJC_$_PROTOCOL_REFS_" + PD->getName(), |
| 4848 | PD->protocol_begin(), |
| 4849 | PD->protocol_end()); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4850 | |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 4851 | Values[3] = EmitMethodList("\01l_OBJC_$_PROTOCOL_INSTANCE_METHODS_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4852 | + PD->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4853 | "__DATA, __objc_const", |
| 4854 | InstanceMethods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4855 | Values[4] = EmitMethodList("\01l_OBJC_$_PROTOCOL_CLASS_METHODS_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4856 | + PD->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4857 | "__DATA, __objc_const", |
| 4858 | ClassMethods); |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 4859 | Values[5] = EmitMethodList("\01l_OBJC_$_PROTOCOL_INSTANCE_METHODS_OPT_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4860 | + PD->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4861 | "__DATA, __objc_const", |
| 4862 | OptInstanceMethods); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4863 | Values[6] = EmitMethodList("\01l_OBJC_$_PROTOCOL_CLASS_METHODS_OPT_" |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4864 | + PD->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4865 | "__DATA, __objc_const", |
| 4866 | OptClassMethods); |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4867 | Values[7] = EmitPropertyList("\01l_OBJC_$_PROP_LIST_" + PD->getName(), |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4868 | 0, PD, ObjCTypes); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4869 | uint32_t Size = |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 4870 | CGM.getTargetData().getTypeAllocSize(ObjCTypes.ProtocolnfABITy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4871 | Values[8] = llvm::ConstantInt::get(ObjCTypes.IntTy, Size); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4872 | Values[9] = llvm::Constant::getNullValue(ObjCTypes.IntTy); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 4873 | llvm::Constant *Init = llvm::ConstantStruct::get(ObjCTypes.ProtocolnfABITy, |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4874 | Values); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4875 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4876 | if (Entry) { |
| 4877 | // Already created, fix the linkage and update the initializer. |
Mike Stump | 286acbd | 2009-03-07 16:33:28 +0000 | [diff] [blame] | 4878 | Entry->setLinkage(llvm::GlobalValue::WeakAnyLinkage); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4879 | Entry->setInitializer(Init); |
| 4880 | } else { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4881 | Entry = |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4882 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ProtocolnfABITy, |
| 4883 | false, llvm::GlobalValue::WeakAnyLinkage, Init, |
| 4884 | "\01l_OBJC_PROTOCOL_$_" + PD->getName()); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4885 | Entry->setAlignment( |
| 4886 | CGM.getTargetData().getPrefTypeAlignment(ObjCTypes.ProtocolnfABITy)); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4887 | Entry->setSection("__DATA,__datacoal_nt,coalesced"); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4888 | } |
Fariborz Jahanian | 8448c2c | 2009-01-29 20:10:59 +0000 | [diff] [blame] | 4889 | Entry->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4890 | CGM.AddUsedGlobal(Entry); |
| 4891 | |
Fariborz Jahanian | 8448c2c | 2009-01-29 20:10:59 +0000 | [diff] [blame] | 4892 | // Use this protocol meta-data to build protocol list table in section |
| 4893 | // __DATA, __objc_protolist |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4894 | llvm::GlobalVariable *PTGV = |
| 4895 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ProtocolnfABIPtrTy, |
| 4896 | false, llvm::GlobalValue::WeakAnyLinkage, Entry, |
| 4897 | "\01l_OBJC_LABEL_PROTOCOL_$_" + PD->getName()); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4898 | PTGV->setAlignment( |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 4899 | CGM.getTargetData().getPrefTypeAlignment(ObjCTypes.ProtocolnfABIPtrTy)); |
Daniel Dunbar | 0bf2199 | 2009-04-15 02:56:18 +0000 | [diff] [blame] | 4900 | PTGV->setSection("__DATA, __objc_protolist, coalesced, no_dead_strip"); |
Fariborz Jahanian | 8448c2c | 2009-01-29 20:10:59 +0000 | [diff] [blame] | 4901 | PTGV->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4902 | CGM.AddUsedGlobal(PTGV); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4903 | return Entry; |
| 4904 | } |
| 4905 | |
| 4906 | /// EmitProtocolList - Generate protocol list meta-data: |
| 4907 | /// @code |
| 4908 | /// struct _protocol_list_t { |
| 4909 | /// long protocol_count; // Note, this is 32/64 bit |
| 4910 | /// struct _protocol_t[protocol_count]; |
| 4911 | /// } |
| 4912 | /// @endcode |
| 4913 | /// |
| 4914 | llvm::Constant * |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4915 | CGObjCNonFragileABIMac::EmitProtocolList(llvm::Twine Name, |
| 4916 | ObjCProtocolDecl::protocol_iterator begin, |
| 4917 | ObjCProtocolDecl::protocol_iterator end) { |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4918 | std::vector<llvm::Constant*> ProtocolRefs; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4919 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4920 | // Just return null for empty protocol lists |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4921 | if (begin == end) |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4922 | return llvm::Constant::getNullValue(ObjCTypes.ProtocolListnfABIPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4923 | |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 4924 | // FIXME: We shouldn't need to do this lookup here, should we? |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4925 | llvm::SmallString<256> TmpName; |
| 4926 | Name.toVector(TmpName); |
| 4927 | llvm::GlobalVariable *GV = |
| 4928 | CGM.getModule().getGlobalVariable(TmpName.str(), true); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4929 | if (GV) |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 4930 | return llvm::ConstantExpr::getBitCast(GV, ObjCTypes.ProtocolListnfABIPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4931 | |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 4932 | for (; begin != end; ++begin) |
| 4933 | ProtocolRefs.push_back(GetProtocolRef(*begin)); // Implemented??? |
| 4934 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4935 | // This list is null terminated. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4936 | ProtocolRefs.push_back(llvm::Constant::getNullValue( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4937 | ObjCTypes.ProtocolnfABIPtrTy)); |
| 4938 | |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4939 | std::vector<llvm::Constant*> Values(2); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 4940 | Values[0] = |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 4941 | llvm::ConstantInt::get(ObjCTypes.LongTy, ProtocolRefs.size() - 1); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4942 | Values[1] = |
Owen Anderson | 7db6d83 | 2009-07-28 18:33:04 +0000 | [diff] [blame] | 4943 | llvm::ConstantArray::get( |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 4944 | llvm::ArrayType::get(ObjCTypes.ProtocolnfABIPtrTy, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4945 | ProtocolRefs.size()), |
| 4946 | ProtocolRefs); |
| 4947 | |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 4948 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4949 | GV = new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4950 | llvm::GlobalValue::InternalLinkage, |
| 4951 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 4952 | Name); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4953 | GV->setSection("__DATA, __objc_const"); |
Fariborz Jahanian | 09796d6 | 2009-01-31 02:43:27 +0000 | [diff] [blame] | 4954 | GV->setAlignment( |
| 4955 | CGM.getTargetData().getPrefTypeAlignment(Init->getType())); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 4956 | CGM.AddUsedGlobal(GV); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4957 | return llvm::ConstantExpr::getBitCast(GV, |
Daniel Dunbar | 948e258 | 2009-02-15 07:36:20 +0000 | [diff] [blame] | 4958 | ObjCTypes.ProtocolListnfABIPtrTy); |
Fariborz Jahanian | da32009 | 2009-01-29 19:24:30 +0000 | [diff] [blame] | 4959 | } |
| 4960 | |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 4961 | /// GetMethodDescriptionConstant - This routine build following meta-data: |
| 4962 | /// struct _objc_method { |
| 4963 | /// SEL _cmd; |
| 4964 | /// char *method_type; |
| 4965 | /// char *_imp; |
| 4966 | /// } |
| 4967 | |
| 4968 | llvm::Constant * |
| 4969 | CGObjCNonFragileABIMac::GetMethodDescriptionConstant(const ObjCMethodDecl *MD) { |
| 4970 | std::vector<llvm::Constant*> Desc(3); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 4971 | Desc[0] = |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4972 | llvm::ConstantExpr::getBitCast(GetMethodVarName(MD->getSelector()), |
| 4973 | ObjCTypes.SelectorPtrTy); |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 4974 | Desc[1] = GetMethodVarType(MD); |
Fariborz Jahanian | 8cfd397 | 2009-01-30 18:58:59 +0000 | [diff] [blame] | 4975 | // Protocol methods have no implementation. So, this entry is always NULL. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 4976 | Desc[2] = llvm::Constant::getNullValue(ObjCTypes.Int8PtrTy); |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 4977 | return llvm::ConstantStruct::get(ObjCTypes.MethodTy, Desc); |
Fariborz Jahanian | 3819a0b | 2009-01-30 00:46:37 +0000 | [diff] [blame] | 4978 | } |
Fariborz Jahanian | 45012a7 | 2009-02-03 00:09:52 +0000 | [diff] [blame] | 4979 | |
| 4980 | /// EmitObjCValueForIvar - Code Gen for nonfragile ivar reference. |
| 4981 | /// This code gen. amounts to generating code for: |
| 4982 | /// @code |
| 4983 | /// (type *)((char *)base + _OBJC_IVAR_$_.ivar; |
| 4984 | /// @encode |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4985 | /// |
Fariborz Jahanian | 598d3f6 | 2009-02-03 19:03:09 +0000 | [diff] [blame] | 4986 | LValue CGObjCNonFragileABIMac::EmitObjCValueForIvar( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4987 | CodeGen::CodeGenFunction &CGF, |
| 4988 | QualType ObjectTy, |
| 4989 | llvm::Value *BaseValue, |
| 4990 | const ObjCIvarDecl *Ivar, |
| 4991 | unsigned CVRQualifiers) { |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 4992 | const ObjCInterfaceDecl *ID = ObjectTy->getAs<ObjCInterfaceType>()->getDecl(); |
Daniel Dunbar | 9777687 | 2009-04-22 07:32:20 +0000 | [diff] [blame] | 4993 | return EmitValueForIvarAtOffset(CGF, ID, BaseValue, Ivar, CVRQualifiers, |
| 4994 | EmitIvarOffset(CGF, ID, Ivar)); |
Fariborz Jahanian | 45012a7 | 2009-02-03 00:09:52 +0000 | [diff] [blame] | 4995 | } |
| 4996 | |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 4997 | llvm::Value *CGObjCNonFragileABIMac::EmitIvarOffset( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 4998 | CodeGen::CodeGenFunction &CGF, |
| 4999 | const ObjCInterfaceDecl *Interface, |
| 5000 | const ObjCIvarDecl *Ivar) { |
| 5001 | return CGF.Builder.CreateLoad(ObjCIvarOffsetVariable(Interface, Ivar), |
Daniel Dunbar | 5e88bea | 2009-04-19 00:31:15 +0000 | [diff] [blame] | 5002 | false, "ivar"); |
Fariborz Jahanian | f63aa3f | 2009-02-10 19:02:04 +0000 | [diff] [blame] | 5003 | } |
| 5004 | |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 5005 | CodeGen::RValue CGObjCNonFragileABIMac::EmitMessageSend( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5006 | CodeGen::CodeGenFunction &CGF, |
| 5007 | QualType ResultType, |
| 5008 | Selector Sel, |
| 5009 | llvm::Value *Receiver, |
| 5010 | QualType Arg0Ty, |
| 5011 | bool IsSuper, |
| 5012 | const CallArgList &CallArgs) { |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 5013 | // FIXME. Even though IsSuper is passes. This function doese not handle calls |
| 5014 | // to 'super' receivers. |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5015 | CodeGenTypes &Types = CGM.getTypes(); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5016 | llvm::Value *Arg0 = Receiver; |
| 5017 | if (!IsSuper) |
| 5018 | Arg0 = CGF.Builder.CreateBitCast(Arg0, ObjCTypes.ObjectPtrTy, "tmp"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5019 | |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5020 | // Find the message function name. |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 5021 | // FIXME. This is too much work to get the ABI-specific result type needed to |
| 5022 | // find the message name. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5023 | const CGFunctionInfo &FnInfo = Types.getFunctionInfo(ResultType, |
| 5024 | llvm::SmallVector<QualType, 16>()); |
Fariborz Jahanian | 70b51c7 | 2009-04-30 23:08:58 +0000 | [diff] [blame] | 5025 | llvm::Constant *Fn = 0; |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5026 | std::string Name("\01l_"); |
| 5027 | if (CGM.ReturnTypeUsesSret(FnInfo)) { |
Fariborz Jahanian | c170852 | 2009-02-05 18:00:27 +0000 | [diff] [blame] | 5028 | #if 0 |
| 5029 | // unlike what is documented. gcc never generates this API!! |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5030 | if (Receiver->getType() == ObjCTypes.ObjectPtrTy) { |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 5031 | Fn = ObjCTypes.getMessageSendIdStretFixupFn(); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5032 | // FIXME. Is there a better way of getting these names. |
| 5033 | // They are available in RuntimeFunctions vector pair. |
| 5034 | Name += "objc_msgSendId_stret_fixup"; |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5035 | } else |
Fariborz Jahanian | c170852 | 2009-02-05 18:00:27 +0000 | [diff] [blame] | 5036 | #endif |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5037 | if (IsSuper) { |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 5038 | Fn = ObjCTypes.getMessageSendSuper2StretFixupFn(); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5039 | Name += "objc_msgSendSuper2_stret_fixup"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5040 | } else { |
| 5041 | Fn = ObjCTypes.getMessageSendStretFixupFn(); |
| 5042 | Name += "objc_msgSend_stret_fixup"; |
| 5043 | } |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5044 | } else if (!IsSuper && ResultType->isFloatingType()) { |
Daniel Dunbar | c0183e8 | 2009-06-26 18:32:06 +0000 | [diff] [blame] | 5045 | if (ResultType->isSpecificBuiltinType(BuiltinType::LongDouble)) { |
| 5046 | Fn = ObjCTypes.getMessageSendFpretFixupFn(); |
| 5047 | Name += "objc_msgSend_fpret_fixup"; |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5048 | } else { |
Daniel Dunbar | c0183e8 | 2009-06-26 18:32:06 +0000 | [diff] [blame] | 5049 | Fn = ObjCTypes.getMessageSendFixupFn(); |
| 5050 | Name += "objc_msgSend_fixup"; |
Fariborz Jahanian | 5b2bad0 | 2009-04-30 16:31:11 +0000 | [diff] [blame] | 5051 | } |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5052 | } else { |
Fariborz Jahanian | c170852 | 2009-02-05 18:00:27 +0000 | [diff] [blame] | 5053 | #if 0 |
| 5054 | // unlike what is documented. gcc never generates this API!! |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5055 | if (Receiver->getType() == ObjCTypes.ObjectPtrTy) { |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 5056 | Fn = ObjCTypes.getMessageSendIdFixupFn(); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5057 | Name += "objc_msgSendId_fixup"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5058 | } else |
Fariborz Jahanian | c170852 | 2009-02-05 18:00:27 +0000 | [diff] [blame] | 5059 | #endif |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5060 | if (IsSuper) { |
Chris Lattner | 1c02f86 | 2009-04-22 02:53:24 +0000 | [diff] [blame] | 5061 | Fn = ObjCTypes.getMessageSendSuper2FixupFn(); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5062 | Name += "objc_msgSendSuper2_fixup"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5063 | } else { |
| 5064 | Fn = ObjCTypes.getMessageSendFixupFn(); |
| 5065 | Name += "objc_msgSend_fixup"; |
| 5066 | } |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5067 | } |
Fariborz Jahanian | 70b51c7 | 2009-04-30 23:08:58 +0000 | [diff] [blame] | 5068 | assert(Fn && "CGObjCNonFragileABIMac::EmitMessageSend"); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5069 | Name += '_'; |
| 5070 | std::string SelName(Sel.getAsString()); |
| 5071 | // Replace all ':' in selector name with '_' ouch! |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5072 | for (unsigned i = 0; i < SelName.size(); i++) |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5073 | if (SelName[i] == ':') |
| 5074 | SelName[i] = '_'; |
| 5075 | Name += SelName; |
| 5076 | llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name); |
| 5077 | if (!GV) { |
Daniel Dunbar | 33af70f | 2009-04-15 19:03:14 +0000 | [diff] [blame] | 5078 | // Build message ref table entry. |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5079 | std::vector<llvm::Constant*> Values(2); |
| 5080 | Values[0] = Fn; |
| 5081 | Values[1] = GetMethodVarName(Sel); |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 5082 | llvm::Constant *Init = llvm::ConstantStruct::get(VMContext, Values, false); |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5083 | GV = new llvm::GlobalVariable(CGM.getModule(), Init->getType(), false, |
Mike Stump | 286acbd | 2009-03-07 16:33:28 +0000 | [diff] [blame] | 5084 | llvm::GlobalValue::WeakAnyLinkage, |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5085 | Init, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5086 | Name); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5087 | GV->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Daniel Dunbar | f59c1a6 | 2009-04-15 19:04:46 +0000 | [diff] [blame] | 5088 | GV->setAlignment(16); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5089 | GV->setSection("__DATA, __objc_msgrefs, coalesced"); |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5090 | } |
| 5091 | llvm::Value *Arg1 = CGF.Builder.CreateBitCast(GV, ObjCTypes.MessageRefPtrTy); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5092 | |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5093 | CallArgList ActualArgs; |
| 5094 | ActualArgs.push_back(std::make_pair(RValue::get(Arg0), Arg0Ty)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5095 | ActualArgs.push_back(std::make_pair(RValue::get(Arg1), |
Fariborz Jahanian | 83a8a75 | 2009-02-04 20:42:28 +0000 | [diff] [blame] | 5096 | ObjCTypes.MessageRefCPtrTy)); |
| 5097 | ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); |
Fariborz Jahanian | ef16378 | 2009-02-05 01:13:09 +0000 | [diff] [blame] | 5098 | const CGFunctionInfo &FnInfo1 = Types.getFunctionInfo(ResultType, ActualArgs); |
| 5099 | llvm::Value *Callee = CGF.Builder.CreateStructGEP(Arg1, 0); |
| 5100 | Callee = CGF.Builder.CreateLoad(Callee); |
Fariborz Jahanian | 3ab75bd | 2009-02-14 21:25:36 +0000 | [diff] [blame] | 5101 | const llvm::FunctionType *FTy = Types.GetFunctionType(FnInfo1, true); |
Fariborz Jahanian | ef16378 | 2009-02-05 01:13:09 +0000 | [diff] [blame] | 5102 | Callee = CGF.Builder.CreateBitCast(Callee, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 5103 | llvm::PointerType::getUnqual(FTy)); |
Fariborz Jahanian | ef16378 | 2009-02-05 01:13:09 +0000 | [diff] [blame] | 5104 | return CGF.EmitCall(FnInfo1, Callee, ActualArgs); |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 5105 | } |
| 5106 | |
| 5107 | /// Generate code for a message send expression in the nonfragile abi. |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5108 | CodeGen::RValue |
| 5109 | CGObjCNonFragileABIMac::GenerateMessageSend(CodeGen::CodeGenFunction &CGF, |
| 5110 | QualType ResultType, |
| 5111 | Selector Sel, |
| 5112 | llvm::Value *Receiver, |
| 5113 | bool IsClassMessage, |
| 5114 | const CallArgList &CallArgs, |
| 5115 | const ObjCMethodDecl *Method) { |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 5116 | return LegacyDispatchedSelector(Sel) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5117 | ? EmitLegacyMessageSend(CGF, ResultType, EmitSelector(CGF.Builder, Sel), |
| 5118 | Receiver, CGF.getContext().getObjCIdType(), |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5119 | false, CallArgs, Method, ObjCTypes) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5120 | : EmitMessageSend(CGF, ResultType, Sel, |
| 5121 | Receiver, CGF.getContext().getObjCIdType(), |
| 5122 | false, CallArgs); |
Fariborz Jahanian | 4655112 | 2009-02-04 00:22:57 +0000 | [diff] [blame] | 5123 | } |
| 5124 | |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 5125 | llvm::GlobalVariable * |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 5126 | CGObjCNonFragileABIMac::GetClassGlobal(const std::string &Name) { |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 5127 | llvm::GlobalVariable *GV = CGM.getModule().getGlobalVariable(Name); |
| 5128 | |
Daniel Dunbar | dfff230 | 2009-03-02 05:18:14 +0000 | [diff] [blame] | 5129 | if (!GV) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5130 | GV = new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassnfABITy, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5131 | false, llvm::GlobalValue::ExternalLinkage, |
| 5132 | 0, Name); |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 5133 | } |
| 5134 | |
| 5135 | return GV; |
| 5136 | } |
| 5137 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5138 | llvm::Value *CGObjCNonFragileABIMac::EmitClassRef(CGBuilderTy &Builder, |
| 5139 | const ObjCInterfaceDecl *ID) { |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5140 | llvm::GlobalVariable *&Entry = ClassReferences[ID->getIdentifier()]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5141 | |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5142 | if (!Entry) { |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 5143 | std::string ClassName(getClassSymbolPrefix() + ID->getNameAsString()); |
Daniel Dunbar | 5a7379a | 2009-03-01 04:40:10 +0000 | [diff] [blame] | 5144 | llvm::GlobalVariable *ClassGV = GetClassGlobal(ClassName); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5145 | Entry = |
| 5146 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassnfABIPtrTy, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5147 | false, llvm::GlobalValue::InternalLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5148 | ClassGV, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5149 | "\01L_OBJC_CLASSLIST_REFERENCES_$_"); |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5150 | Entry->setAlignment( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5151 | CGM.getTargetData().getPrefTypeAlignment( |
| 5152 | ObjCTypes.ClassnfABIPtrTy)); |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5153 | Entry->setSection("__DATA, __objc_classrefs, regular, no_dead_strip"); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5154 | CGM.AddUsedGlobal(Entry); |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5155 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5156 | |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5157 | return Builder.CreateLoad(Entry, false, "tmp"); |
| 5158 | } |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5159 | |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5160 | llvm::Value * |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5161 | CGObjCNonFragileABIMac::EmitSuperClassRef(CGBuilderTy &Builder, |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5162 | const ObjCInterfaceDecl *ID) { |
| 5163 | llvm::GlobalVariable *&Entry = SuperClassReferences[ID->getIdentifier()]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5164 | |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5165 | if (!Entry) { |
| 5166 | std::string ClassName(getClassSymbolPrefix() + ID->getNameAsString()); |
| 5167 | llvm::GlobalVariable *ClassGV = GetClassGlobal(ClassName); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5168 | Entry = |
| 5169 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassnfABIPtrTy, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5170 | false, llvm::GlobalValue::InternalLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5171 | ClassGV, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5172 | "\01L_OBJC_CLASSLIST_SUP_REFS_$_"); |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5173 | Entry->setAlignment( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5174 | CGM.getTargetData().getPrefTypeAlignment( |
| 5175 | ObjCTypes.ClassnfABIPtrTy)); |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5176 | Entry->setSection("__DATA, __objc_superrefs, regular, no_dead_strip"); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5177 | CGM.AddUsedGlobal(Entry); |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5178 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5179 | |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5180 | return Builder.CreateLoad(Entry, false, "tmp"); |
| 5181 | } |
| 5182 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5183 | /// EmitMetaClassRef - Return a Value * of the address of _class_t |
| 5184 | /// meta-data |
| 5185 | /// |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5186 | llvm::Value *CGObjCNonFragileABIMac::EmitMetaClassRef(CGBuilderTy &Builder, |
| 5187 | const ObjCInterfaceDecl *ID) { |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5188 | llvm::GlobalVariable * &Entry = MetaClassReferences[ID->getIdentifier()]; |
| 5189 | if (Entry) |
| 5190 | return Builder.CreateLoad(Entry, false, "tmp"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5191 | |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 5192 | std::string MetaClassName(getMetaclassSymbolPrefix() + ID->getNameAsString()); |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 5193 | llvm::GlobalVariable *MetaClassGV = GetClassGlobal(MetaClassName); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5194 | Entry = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5195 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.ClassnfABIPtrTy, false, |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5196 | llvm::GlobalValue::InternalLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5197 | MetaClassGV, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5198 | "\01L_OBJC_CLASSLIST_SUP_REFS_$_"); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5199 | Entry->setAlignment( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5200 | CGM.getTargetData().getPrefTypeAlignment( |
| 5201 | ObjCTypes.ClassnfABIPtrTy)); |
| 5202 | |
Daniel Dunbar | 33af70f | 2009-04-15 19:03:14 +0000 | [diff] [blame] | 5203 | Entry->setSection("__DATA, __objc_superrefs, regular, no_dead_strip"); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5204 | CGM.AddUsedGlobal(Entry); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5205 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5206 | return Builder.CreateLoad(Entry, false, "tmp"); |
| 5207 | } |
| 5208 | |
Fariborz Jahanian | 0e81f4b | 2009-02-05 20:41:40 +0000 | [diff] [blame] | 5209 | /// GetClass - Return a reference to the class for the given interface |
| 5210 | /// decl. |
| 5211 | llvm::Value *CGObjCNonFragileABIMac::GetClass(CGBuilderTy &Builder, |
| 5212 | const ObjCInterfaceDecl *ID) { |
| 5213 | return EmitClassRef(Builder, ID); |
| 5214 | } |
| 5215 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5216 | /// Generates a message send where the super is the receiver. This is |
| 5217 | /// a message send to self with special delivery semantics indicating |
| 5218 | /// which class's method should be called. |
| 5219 | CodeGen::RValue |
| 5220 | CGObjCNonFragileABIMac::GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5221 | QualType ResultType, |
| 5222 | Selector Sel, |
| 5223 | const ObjCInterfaceDecl *Class, |
| 5224 | bool isCategoryImpl, |
| 5225 | llvm::Value *Receiver, |
| 5226 | bool IsClassMessage, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5227 | const CodeGen::CallArgList &CallArgs, |
| 5228 | const ObjCMethodDecl *Method) { |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5229 | // ... |
| 5230 | // Create and init a super structure; this is a (receiver, class) |
| 5231 | // pair we will pass to objc_msgSendSuper. |
| 5232 | llvm::Value *ObjCSuper = |
| 5233 | CGF.Builder.CreateAlloca(ObjCTypes.SuperTy, 0, "objc_super"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5234 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5235 | llvm::Value *ReceiverAsObject = |
| 5236 | CGF.Builder.CreateBitCast(Receiver, ObjCTypes.ObjectPtrTy); |
| 5237 | CGF.Builder.CreateStore(ReceiverAsObject, |
| 5238 | CGF.Builder.CreateStructGEP(ObjCSuper, 0)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5239 | |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5240 | // 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] | 5241 | llvm::Value *Target; |
| 5242 | if (IsClassMessage) { |
| 5243 | if (isCategoryImpl) { |
| 5244 | // Message sent to "super' in a class method defined in |
| 5245 | // a category implementation. |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5246 | Target = EmitClassRef(CGF.Builder, Class); |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 5247 | Target = CGF.Builder.CreateStructGEP(Target, 0); |
| 5248 | Target = CGF.Builder.CreateLoad(Target); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5249 | } else |
Fariborz Jahanian | 7ce7792 | 2009-02-28 20:07:56 +0000 | [diff] [blame] | 5250 | Target = EmitMetaClassRef(CGF.Builder, Class); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5251 | } else |
Daniel Dunbar | 1139452 | 2009-04-18 08:51:00 +0000 | [diff] [blame] | 5252 | Target = EmitSuperClassRef(CGF.Builder, Class); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5253 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 5254 | // FIXME: We shouldn't need to do this cast, rectify the ASTContext and |
| 5255 | // ObjCTypes types. |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5256 | const llvm::Type *ClassTy = |
| 5257 | CGM.getTypes().ConvertType(CGF.getContext().getObjCClassType()); |
| 5258 | Target = CGF.Builder.CreateBitCast(Target, ClassTy); |
| 5259 | CGF.Builder.CreateStore(Target, |
| 5260 | CGF.Builder.CreateStructGEP(ObjCSuper, 1)); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5261 | |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 5262 | return (LegacyDispatchedSelector(Sel)) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5263 | ? EmitLegacyMessageSend(CGF, ResultType,EmitSelector(CGF.Builder, Sel), |
| 5264 | ObjCSuper, ObjCTypes.SuperPtrCTy, |
Daniel Dunbar | d6c93d7 | 2009-09-17 04:01:22 +0000 | [diff] [blame] | 5265 | true, CallArgs, Method, ObjCTypes) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5266 | : EmitMessageSend(CGF, ResultType, Sel, |
| 5267 | ObjCSuper, ObjCTypes.SuperPtrCTy, |
| 5268 | true, CallArgs); |
Fariborz Jahanian | 7a06aae | 2009-02-06 20:09:23 +0000 | [diff] [blame] | 5269 | } |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5270 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5271 | llvm::Value *CGObjCNonFragileABIMac::EmitSelector(CGBuilderTy &Builder, |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5272 | Selector Sel) { |
| 5273 | llvm::GlobalVariable *&Entry = SelectorReferences[Sel]; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5274 | |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5275 | if (!Entry) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5276 | llvm::Constant *Casted = |
| 5277 | llvm::ConstantExpr::getBitCast(GetMethodVarName(Sel), |
| 5278 | ObjCTypes.SelectorPtrTy); |
| 5279 | Entry = |
| 5280 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.SelectorPtrTy, false, |
| 5281 | llvm::GlobalValue::InternalLinkage, |
| 5282 | Casted, "\01L_OBJC_SELECTOR_REFERENCES_"); |
Fariborz Jahanian | d0f8a8d | 2009-05-11 19:25:47 +0000 | [diff] [blame] | 5283 | Entry->setSection("__DATA, __objc_selrefs, literal_pointers, no_dead_strip"); |
Chris Lattner | ad64e02 | 2009-07-17 23:57:13 +0000 | [diff] [blame] | 5284 | CGM.AddUsedGlobal(Entry); |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5285 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5286 | |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5287 | return Builder.CreateLoad(Entry, false, "tmp"); |
| 5288 | } |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5289 | /// EmitObjCIvarAssign - Code gen for assigning to a __strong object. |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 5290 | /// objc_assign_ivar (id src, id *dst, ptrdiff_t) |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5291 | /// |
| 5292 | void CGObjCNonFragileABIMac::EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5293 | llvm::Value *src, |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 5294 | llvm::Value *dst, |
| 5295 | llvm::Value *ivarOffset) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5296 | const llvm::Type * SrcTy = src->getType(); |
| 5297 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5298 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5299 | assert(Size <= 8 && "does not support size > 8"); |
| 5300 | src = (Size == 4 ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
| 5301 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongTy)); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 5302 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 5303 | } |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5304 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 5305 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Fariborz Jahanian | 6c7a1f3 | 2009-09-24 22:25:38 +0000 | [diff] [blame] | 5306 | CGF.Builder.CreateCall3(ObjCTypes.getGcAssignIvarFn(), |
| 5307 | src, dst, ivarOffset); |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5308 | return; |
| 5309 | } |
| 5310 | |
| 5311 | /// EmitObjCStrongCastAssign - Code gen for assigning to a __strong cast object. |
| 5312 | /// objc_assign_strongCast (id src, id *dst) |
| 5313 | /// |
| 5314 | void CGObjCNonFragileABIMac::EmitObjCStrongCastAssign( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5315 | CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5316 | llvm::Value *src, llvm::Value *dst) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5317 | const llvm::Type * SrcTy = src->getType(); |
| 5318 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5319 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5320 | assert(Size <= 8 && "does not support size > 8"); |
| 5321 | src = (Size == 4 ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5322 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongTy)); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 5323 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 5324 | } |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5325 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 5326 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 5327 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignStrongCastFn(), |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5328 | src, dst, "weakassign"); |
| 5329 | return; |
| 5330 | } |
| 5331 | |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 5332 | void CGObjCNonFragileABIMac::EmitGCMemmoveCollectable( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5333 | CodeGen::CodeGenFunction &CGF, |
| 5334 | llvm::Value *DestPtr, |
| 5335 | llvm::Value *SrcPtr, |
Fariborz Jahanian | 08c3213 | 2009-08-31 19:33:16 +0000 | [diff] [blame] | 5336 | QualType Ty) { |
| 5337 | // Get size info for this aggregate. |
| 5338 | std::pair<uint64_t, unsigned> TypeInfo = CGM.getContext().getTypeInfo(Ty); |
Fariborz Jahanian | 736d8a6 | 2009-09-10 16:20:31 +0000 | [diff] [blame] | 5339 | unsigned long size = TypeInfo.first/8; |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 5340 | SrcPtr = CGF.Builder.CreateBitCast(SrcPtr, ObjCTypes.Int8PtrTy); |
| 5341 | DestPtr = CGF.Builder.CreateBitCast(DestPtr, ObjCTypes.Int8PtrTy); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 5342 | llvm::Value *N = llvm::ConstantInt::get(ObjCTypes.LongTy, size); |
Fariborz Jahanian | 082b02e | 2009-07-08 01:18:33 +0000 | [diff] [blame] | 5343 | CGF.Builder.CreateCall3(ObjCTypes.GcMemmoveCollectableFn(), |
| 5344 | DestPtr, SrcPtr, N); |
| 5345 | return; |
| 5346 | } |
| 5347 | |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5348 | /// EmitObjCWeakRead - Code gen for loading value of a __weak |
| 5349 | /// object: objc_read_weak (id *src) |
| 5350 | /// |
| 5351 | llvm::Value * CGObjCNonFragileABIMac::EmitObjCWeakRead( |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5352 | CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5353 | llvm::Value *AddrWeakObj) { |
Eli Friedman | 8339b35 | 2009-03-07 03:57:15 +0000 | [diff] [blame] | 5354 | const llvm::Type* DestTy = |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5355 | cast<llvm::PointerType>(AddrWeakObj->getType())->getElementType(); |
| 5356 | AddrWeakObj = CGF.Builder.CreateBitCast(AddrWeakObj, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | 72db6c3 | 2009-04-22 02:44:54 +0000 | [diff] [blame] | 5357 | llvm::Value *read_weak = CGF.Builder.CreateCall(ObjCTypes.getGcReadWeakFn(), |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5358 | AddrWeakObj, "weakread"); |
Eli Friedman | 8339b35 | 2009-03-07 03:57:15 +0000 | [diff] [blame] | 5359 | read_weak = CGF.Builder.CreateBitCast(read_weak, DestTy); |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5360 | return read_weak; |
| 5361 | } |
| 5362 | |
| 5363 | /// EmitObjCWeakAssign - Code gen for assigning to a __weak object. |
| 5364 | /// objc_assign_weak (id src, id *dst) |
| 5365 | /// |
| 5366 | void CGObjCNonFragileABIMac::EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5367 | llvm::Value *src, llvm::Value *dst) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5368 | const llvm::Type * SrcTy = src->getType(); |
| 5369 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5370 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5371 | assert(Size <= 8 && "does not support size > 8"); |
| 5372 | src = (Size == 4 ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
| 5373 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongTy)); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 5374 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 5375 | } |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5376 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 5377 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | 96508e1 | 2009-04-17 22:12:36 +0000 | [diff] [blame] | 5378 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignWeakFn(), |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5379 | src, dst, "weakassign"); |
| 5380 | return; |
| 5381 | } |
| 5382 | |
| 5383 | /// EmitObjCGlobalAssign - Code gen for assigning to a __strong object. |
| 5384 | /// objc_assign_global (id src, id *dst) |
| 5385 | /// |
| 5386 | void CGObjCNonFragileABIMac::EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 5387 | llvm::Value *src, llvm::Value *dst) { |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5388 | const llvm::Type * SrcTy = src->getType(); |
| 5389 | if (!isa<llvm::PointerType>(SrcTy)) { |
Duncan Sands | 9408c45 | 2009-05-09 07:08:47 +0000 | [diff] [blame] | 5390 | unsigned Size = CGM.getTargetData().getTypeAllocSize(SrcTy); |
Fariborz Jahanian | 0a855d0 | 2009-03-23 19:10:40 +0000 | [diff] [blame] | 5391 | assert(Size <= 8 && "does not support size > 8"); |
| 5392 | src = (Size == 4 ? CGF.Builder.CreateBitCast(src, ObjCTypes.IntTy) |
| 5393 | : CGF.Builder.CreateBitCast(src, ObjCTypes.LongTy)); |
Fariborz Jahanian | 3b8a652 | 2009-03-13 00:42:52 +0000 | [diff] [blame] | 5394 | src = CGF.Builder.CreateIntToPtr(src, ObjCTypes.Int8PtrTy); |
| 5395 | } |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5396 | src = CGF.Builder.CreateBitCast(src, ObjCTypes.ObjectPtrTy); |
| 5397 | dst = CGF.Builder.CreateBitCast(dst, ObjCTypes.PtrObjectPtrTy); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 5398 | CGF.Builder.CreateCall2(ObjCTypes.getGcAssignGlobalFn(), |
Fariborz Jahanian | 6948aea | 2009-02-16 22:52:32 +0000 | [diff] [blame] | 5399 | src, dst, "globalassign"); |
| 5400 | return; |
| 5401 | } |
Fariborz Jahanian | 26cc89f | 2009-02-11 20:51:17 +0000 | [diff] [blame] | 5402 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5403 | void |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5404 | CGObjCNonFragileABIMac::EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, |
| 5405 | const Stmt &S) { |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5406 | bool isTry = isa<ObjCAtTryStmt>(S); |
| 5407 | llvm::BasicBlock *TryBlock = CGF.createBasicBlock("try"); |
| 5408 | llvm::BasicBlock *PrevLandingPad = CGF.getInvokeDest(); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5409 | llvm::BasicBlock *TryHandler = CGF.createBasicBlock("try.handler"); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5410 | llvm::BasicBlock *FinallyBlock = CGF.createBasicBlock("finally"); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5411 | llvm::BasicBlock *FinallyRethrow = CGF.createBasicBlock("finally.throw"); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5412 | llvm::BasicBlock *FinallyEnd = CGF.createBasicBlock("finally.end"); |
| 5413 | |
| 5414 | // For @synchronized, call objc_sync_enter(sync.expr). The |
| 5415 | // evaluation of the expression must occur before we enter the |
| 5416 | // @synchronized. We can safely avoid a temp here because jumps into |
| 5417 | // @synchronized are illegal & this will dominate uses. |
| 5418 | llvm::Value *SyncArg = 0; |
| 5419 | if (!isTry) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5420 | SyncArg = |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5421 | CGF.EmitScalarExpr(cast<ObjCAtSynchronizedStmt>(S).getSynchExpr()); |
| 5422 | SyncArg = CGF.Builder.CreateBitCast(SyncArg, ObjCTypes.ObjectPtrTy); |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 5423 | CGF.Builder.CreateCall(ObjCTypes.getSyncEnterFn(), SyncArg); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5424 | } |
| 5425 | |
| 5426 | // Push an EH context entry, used for handling rethrows and jumps |
| 5427 | // through finally. |
| 5428 | CGF.PushCleanupBlock(FinallyBlock); |
| 5429 | |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5430 | CGF.setInvokeDest(TryHandler); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5431 | |
| 5432 | CGF.EmitBlock(TryBlock); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5433 | CGF.EmitStmt(isTry ? cast<ObjCAtTryStmt>(S).getTryBody() |
| 5434 | : cast<ObjCAtSynchronizedStmt>(S).getSynchBody()); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5435 | CGF.EmitBranchThroughCleanup(FinallyEnd); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5436 | |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5437 | // Emit the exception handler. |
| 5438 | |
| 5439 | CGF.EmitBlock(TryHandler); |
| 5440 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5441 | llvm::Value *llvm_eh_exception = |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5442 | CGF.CGM.getIntrinsic(llvm::Intrinsic::eh_exception); |
Duncan Sands | 790b20e | 2009-10-14 16:13:30 +0000 | [diff] [blame] | 5443 | llvm::Value *llvm_eh_selector = |
| 5444 | CGF.CGM.getIntrinsic(llvm::Intrinsic::eh_selector); |
| 5445 | llvm::Value *llvm_eh_typeid_for = |
| 5446 | CGF.CGM.getIntrinsic(llvm::Intrinsic::eh_typeid_for); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5447 | llvm::Value *Exc = CGF.Builder.CreateCall(llvm_eh_exception, "exc"); |
| 5448 | llvm::Value *RethrowPtr = CGF.CreateTempAlloca(Exc->getType(), "_rethrow"); |
| 5449 | |
| 5450 | llvm::SmallVector<llvm::Value*, 8> SelectorArgs; |
| 5451 | SelectorArgs.push_back(Exc); |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 5452 | SelectorArgs.push_back(ObjCTypes.getEHPersonalityPtr()); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5453 | |
| 5454 | // Construct the lists of (type, catch body) to handle. |
Daniel Dunbar | ede8de9 | 2009-03-06 00:01:21 +0000 | [diff] [blame] | 5455 | llvm::SmallVector<std::pair<const ParmVarDecl*, const Stmt*>, 8> Handlers; |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5456 | bool HasCatchAll = false; |
| 5457 | if (isTry) { |
| 5458 | if (const ObjCAtCatchStmt* CatchStmt = |
| 5459 | cast<ObjCAtTryStmt>(S).getCatchStmts()) { |
| 5460 | for (; CatchStmt; CatchStmt = CatchStmt->getNextCatchStmt()) { |
Daniel Dunbar | ede8de9 | 2009-03-06 00:01:21 +0000 | [diff] [blame] | 5461 | const ParmVarDecl *CatchDecl = CatchStmt->getCatchParamDecl(); |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 5462 | Handlers.push_back(std::make_pair(CatchDecl, CatchStmt->getCatchBody())); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5463 | |
| 5464 | // catch(...) always matches. |
Steve Naroff | 7ba138a | 2009-03-03 19:52:17 +0000 | [diff] [blame] | 5465 | if (!CatchDecl) { |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5466 | // Use i8* null here to signal this is a catch all, not a cleanup. |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 5467 | llvm::Value *Null = llvm::Constant::getNullValue(ObjCTypes.Int8PtrTy); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5468 | SelectorArgs.push_back(Null); |
| 5469 | HasCatchAll = true; |
| 5470 | break; |
| 5471 | } |
| 5472 | |
Steve Naroff | 14108da | 2009-07-10 23:34:53 +0000 | [diff] [blame] | 5473 | if (CatchDecl->getType()->isObjCIdType() || |
Daniel Dunbar | ede8de9 | 2009-03-06 00:01:21 +0000 | [diff] [blame] | 5474 | CatchDecl->getType()->isObjCQualifiedIdType()) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5475 | llvm::Value *IDEHType = |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5476 | CGM.getModule().getGlobalVariable("OBJC_EHTYPE_id"); |
| 5477 | if (!IDEHType) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5478 | IDEHType = |
| 5479 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.EHTypeTy, |
| 5480 | false, |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5481 | llvm::GlobalValue::ExternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5482 | 0, "OBJC_EHTYPE_id"); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5483 | SelectorArgs.push_back(IDEHType); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 5484 | } else { |
Fariborz Jahanian | 99438a7 | 2009-07-27 23:12:41 +0000 | [diff] [blame] | 5485 | // All other types should be Objective-C interface pointer types. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5486 | const ObjCObjectPointerType *PT = |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 5487 | CatchDecl->getType()->getAs<ObjCObjectPointerType>(); |
Fariborz Jahanian | 99438a7 | 2009-07-27 23:12:41 +0000 | [diff] [blame] | 5488 | assert(PT && "Invalid @catch type."); |
| 5489 | const ObjCInterfaceType *IT = PT->getInterfaceType(); |
| 5490 | assert(IT && "Invalid @catch type."); |
| 5491 | llvm::Value *EHType = GetInterfaceEHType(IT->getDecl(), false); |
| 5492 | SelectorArgs.push_back(EHType); |
| 5493 | } |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5494 | } |
| 5495 | } |
| 5496 | } |
| 5497 | |
| 5498 | // We use a cleanup unless there was already a catch all. |
| 5499 | if (!HasCatchAll) { |
Daniel Dunbar | e3d25ab | 2009-08-03 21:20:07 +0000 | [diff] [blame] | 5500 | // Even though this is a cleanup, treat it as a catch all to avoid the C++ |
| 5501 | // personality behavior of terminating the process if only cleanups are |
| 5502 | // found in the exception handling stack. |
| 5503 | SelectorArgs.push_back(llvm::Constant::getNullValue(ObjCTypes.Int8PtrTy)); |
Daniel Dunbar | ede8de9 | 2009-03-06 00:01:21 +0000 | [diff] [blame] | 5504 | Handlers.push_back(std::make_pair((const ParmVarDecl*) 0, (const Stmt*) 0)); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5505 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5506 | |
| 5507 | llvm::Value *Selector = |
Duncan Sands | 790b20e | 2009-10-14 16:13:30 +0000 | [diff] [blame] | 5508 | CGF.Builder.CreateCall(llvm_eh_selector, |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5509 | SelectorArgs.begin(), SelectorArgs.end(), |
| 5510 | "selector"); |
| 5511 | for (unsigned i = 0, e = Handlers.size(); i != e; ++i) { |
Daniel Dunbar | ede8de9 | 2009-03-06 00:01:21 +0000 | [diff] [blame] | 5512 | const ParmVarDecl *CatchParam = Handlers[i].first; |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5513 | const Stmt *CatchBody = Handlers[i].second; |
| 5514 | |
| 5515 | llvm::BasicBlock *Next = 0; |
| 5516 | |
| 5517 | // The last handler always matches. |
| 5518 | if (i + 1 != e) { |
| 5519 | assert(CatchParam && "Only last handler can be a catch all."); |
| 5520 | |
| 5521 | llvm::BasicBlock *Match = CGF.createBasicBlock("match"); |
| 5522 | Next = CGF.createBasicBlock("catch.next"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5523 | llvm::Value *Id = |
Duncan Sands | 790b20e | 2009-10-14 16:13:30 +0000 | [diff] [blame] | 5524 | CGF.Builder.CreateCall(llvm_eh_typeid_for, |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5525 | CGF.Builder.CreateBitCast(SelectorArgs[i+2], |
| 5526 | ObjCTypes.Int8PtrTy)); |
| 5527 | CGF.Builder.CreateCondBr(CGF.Builder.CreateICmpEQ(Selector, Id), |
| 5528 | Match, Next); |
| 5529 | |
| 5530 | CGF.EmitBlock(Match); |
| 5531 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5532 | |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5533 | if (CatchBody) { |
| 5534 | llvm::BasicBlock *MatchEnd = CGF.createBasicBlock("match.end"); |
| 5535 | llvm::BasicBlock *MatchHandler = CGF.createBasicBlock("match.handler"); |
| 5536 | |
| 5537 | // Cleanups must call objc_end_catch. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5538 | // |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 5539 | // FIXME: It seems incorrect for objc_begin_catch to be inside this |
| 5540 | // context, but this matches gcc. |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5541 | CGF.PushCleanupBlock(MatchEnd); |
| 5542 | CGF.setInvokeDest(MatchHandler); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5543 | |
| 5544 | llvm::Value *ExcObject = |
Chris Lattner | 8a56911 | 2009-04-22 02:15:23 +0000 | [diff] [blame] | 5545 | CGF.Builder.CreateCall(ObjCTypes.getObjCBeginCatchFn(), Exc); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5546 | |
| 5547 | // Bind the catch parameter if it exists. |
| 5548 | if (CatchParam) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5549 | ExcObject = |
| 5550 | CGF.Builder.CreateBitCast(ExcObject, |
Daniel Dunbar | ede8de9 | 2009-03-06 00:01:21 +0000 | [diff] [blame] | 5551 | CGF.ConvertType(CatchParam->getType())); |
| 5552 | // CatchParam is a ParmVarDecl because of the grammar |
| 5553 | // construction used to handle this, but for codegen purposes |
| 5554 | // we treat this as a local decl. |
| 5555 | CGF.EmitLocalBlockVarDecl(*CatchParam); |
| 5556 | CGF.Builder.CreateStore(ExcObject, CGF.GetAddrOfLocalVar(CatchParam)); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5557 | } |
| 5558 | |
| 5559 | CGF.ObjCEHValueStack.push_back(ExcObject); |
| 5560 | CGF.EmitStmt(CatchBody); |
| 5561 | CGF.ObjCEHValueStack.pop_back(); |
| 5562 | |
| 5563 | CGF.EmitBranchThroughCleanup(FinallyEnd); |
| 5564 | |
| 5565 | CGF.EmitBlock(MatchHandler); |
| 5566 | |
| 5567 | llvm::Value *Exc = CGF.Builder.CreateCall(llvm_eh_exception, "exc"); |
| 5568 | // We are required to emit this call to satisfy LLVM, even |
| 5569 | // though we don't use the result. |
| 5570 | llvm::SmallVector<llvm::Value*, 8> Args; |
| 5571 | Args.push_back(Exc); |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 5572 | Args.push_back(ObjCTypes.getEHPersonalityPtr()); |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 5573 | Args.push_back(llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext), |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5574 | 0)); |
Duncan Sands | 790b20e | 2009-10-14 16:13:30 +0000 | [diff] [blame] | 5575 | CGF.Builder.CreateCall(llvm_eh_selector, Args.begin(), Args.end()); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5576 | CGF.Builder.CreateStore(Exc, RethrowPtr); |
| 5577 | CGF.EmitBranchThroughCleanup(FinallyRethrow); |
| 5578 | |
| 5579 | CodeGenFunction::CleanupBlockInfo Info = CGF.PopCleanupBlock(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5580 | |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5581 | CGF.EmitBlock(MatchEnd); |
| 5582 | |
| 5583 | // Unfortunately, we also have to generate another EH frame here |
| 5584 | // in case this throws. |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5585 | llvm::BasicBlock *MatchEndHandler = |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5586 | CGF.createBasicBlock("match.end.handler"); |
| 5587 | llvm::BasicBlock *Cont = CGF.createBasicBlock("invoke.cont"); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5588 | CGF.Builder.CreateInvoke(ObjCTypes.getObjCEndCatchFn(), |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5589 | Cont, MatchEndHandler, |
| 5590 | Args.begin(), Args.begin()); |
| 5591 | |
| 5592 | CGF.EmitBlock(Cont); |
| 5593 | if (Info.SwitchBlock) |
| 5594 | CGF.EmitBlock(Info.SwitchBlock); |
| 5595 | if (Info.EndBlock) |
| 5596 | CGF.EmitBlock(Info.EndBlock); |
| 5597 | |
| 5598 | CGF.EmitBlock(MatchEndHandler); |
| 5599 | Exc = CGF.Builder.CreateCall(llvm_eh_exception, "exc"); |
| 5600 | // We are required to emit this call to satisfy LLVM, even |
| 5601 | // though we don't use the result. |
| 5602 | Args.clear(); |
| 5603 | Args.push_back(Exc); |
Chris Lattner | b02e53b | 2009-04-06 16:53:45 +0000 | [diff] [blame] | 5604 | Args.push_back(ObjCTypes.getEHPersonalityPtr()); |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 5605 | Args.push_back(llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext), |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5606 | 0)); |
Duncan Sands | 790b20e | 2009-10-14 16:13:30 +0000 | [diff] [blame] | 5607 | CGF.Builder.CreateCall(llvm_eh_selector, Args.begin(), Args.end()); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5608 | CGF.Builder.CreateStore(Exc, RethrowPtr); |
| 5609 | CGF.EmitBranchThroughCleanup(FinallyRethrow); |
| 5610 | |
| 5611 | if (Next) |
| 5612 | CGF.EmitBlock(Next); |
| 5613 | } else { |
| 5614 | assert(!Next && "catchup should be last handler."); |
| 5615 | |
| 5616 | CGF.Builder.CreateStore(Exc, RethrowPtr); |
| 5617 | CGF.EmitBranchThroughCleanup(FinallyRethrow); |
| 5618 | } |
| 5619 | } |
| 5620 | |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5621 | // Pop the cleanup entry, the @finally is outside this cleanup |
| 5622 | // scope. |
| 5623 | CodeGenFunction::CleanupBlockInfo Info = CGF.PopCleanupBlock(); |
| 5624 | CGF.setInvokeDest(PrevLandingPad); |
| 5625 | |
| 5626 | CGF.EmitBlock(FinallyBlock); |
| 5627 | |
| 5628 | if (isTry) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5629 | if (const ObjCAtFinallyStmt* FinallyStmt = |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5630 | cast<ObjCAtTryStmt>(S).getFinallyStmt()) |
| 5631 | CGF.EmitStmt(FinallyStmt->getFinallyBody()); |
| 5632 | } else { |
| 5633 | // Emit 'objc_sync_exit(expr)' as finally's sole statement for |
| 5634 | // @synchronized. |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 5635 | CGF.Builder.CreateCall(ObjCTypes.getSyncExitFn(), SyncArg); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5636 | } |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5637 | |
| 5638 | if (Info.SwitchBlock) |
| 5639 | CGF.EmitBlock(Info.SwitchBlock); |
| 5640 | if (Info.EndBlock) |
| 5641 | CGF.EmitBlock(Info.EndBlock); |
| 5642 | |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5643 | // Branch around the rethrow code. |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5644 | CGF.EmitBranch(FinallyEnd); |
| 5645 | |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5646 | CGF.EmitBlock(FinallyRethrow); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5647 | CGF.Builder.CreateCall(ObjCTypes.getUnwindResumeOrRethrowFn(), |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5648 | CGF.Builder.CreateLoad(RethrowPtr)); |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5649 | CGF.Builder.CreateUnreachable(); |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5650 | |
Daniel Dunbar | 8ecbaf2 | 2009-02-24 07:47:38 +0000 | [diff] [blame] | 5651 | CGF.EmitBlock(FinallyEnd); |
| 5652 | } |
| 5653 | |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 5654 | /// EmitThrowStmt - Generate code for a throw statement. |
| 5655 | void CGObjCNonFragileABIMac::EmitThrowStmt(CodeGen::CodeGenFunction &CGF, |
| 5656 | const ObjCAtThrowStmt &S) { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5657 | llvm::Value *Exception; |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 5658 | if (const Expr *ThrowExpr = S.getThrowExpr()) { |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5659 | Exception = CGF.EmitScalarExpr(ThrowExpr); |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 5660 | } else { |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5661 | assert((!CGF.ObjCEHValueStack.empty() && CGF.ObjCEHValueStack.back()) && |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5662 | "Unexpected rethrow outside @catch block."); |
| 5663 | Exception = CGF.ObjCEHValueStack.back(); |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 5664 | } |
| 5665 | |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5666 | llvm::Value *ExceptionAsObject = |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5667 | CGF.Builder.CreateBitCast(Exception, ObjCTypes.ObjectPtrTy, "tmp"); |
| 5668 | llvm::BasicBlock *InvokeDest = CGF.getInvokeDest(); |
| 5669 | if (InvokeDest) { |
| 5670 | llvm::BasicBlock *Cont = CGF.createBasicBlock("invoke.cont"); |
Chris Lattner | bbccd61 | 2009-04-22 02:38:11 +0000 | [diff] [blame] | 5671 | CGF.Builder.CreateInvoke(ObjCTypes.getExceptionThrowFn(), |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5672 | Cont, InvokeDest, |
| 5673 | &ExceptionAsObject, &ExceptionAsObject + 1); |
| 5674 | CGF.EmitBlock(Cont); |
| 5675 | } else |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5676 | CGF.Builder.CreateCall(ObjCTypes.getExceptionThrowFn(), ExceptionAsObject); |
Daniel Dunbar | 4ff3684 | 2009-03-02 06:08:11 +0000 | [diff] [blame] | 5677 | CGF.Builder.CreateUnreachable(); |
| 5678 | |
Anders Carlsson | f57c5b2 | 2009-02-16 22:59:18 +0000 | [diff] [blame] | 5679 | // Clear the insertion point to indicate we are in unreachable code. |
| 5680 | CGF.Builder.ClearInsertionPoint(); |
| 5681 | } |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5682 | |
| 5683 | llvm::Value * |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5684 | CGObjCNonFragileABIMac::GetInterfaceEHType(const ObjCInterfaceDecl *ID, |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5685 | bool ForDefinition) { |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5686 | llvm::GlobalVariable * &Entry = EHTypeReferences[ID->getIdentifier()]; |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5687 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5688 | // If we don't need a definition, return the entry if found or check |
| 5689 | // if we use an external reference. |
| 5690 | if (!ForDefinition) { |
| 5691 | if (Entry) |
| 5692 | return Entry; |
Daniel Dunbar | 7e075cb | 2009-04-07 06:43:45 +0000 | [diff] [blame] | 5693 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5694 | // If this type (or a super class) has the __objc_exception__ |
| 5695 | // attribute, emit an external reference. |
Douglas Gregor | 68584ed | 2009-06-18 16:11:24 +0000 | [diff] [blame] | 5696 | if (hasObjCExceptionAttribute(CGM.getContext(), ID)) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5697 | return Entry = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5698 | new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.EHTypeTy, false, |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5699 | llvm::GlobalValue::ExternalLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5700 | 0, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5701 | ("OBJC_EHTYPE_$_" + |
Daniel Dunbar | 01eb9b9 | 2009-10-18 21:17:35 +0000 | [diff] [blame] | 5702 | ID->getIdentifier()->getName())); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5703 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5704 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5705 | // Otherwise we need to either make a new entry or fill in the |
| 5706 | // initializer. |
| 5707 | assert((!Entry || !Entry->hasInitializer()) && "Duplicate EHType definition"); |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 5708 | std::string ClassName(getClassSymbolPrefix() + ID->getNameAsString()); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5709 | std::string VTableName = "objc_ehtype_vtable"; |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5710 | llvm::GlobalVariable *VTableGV = |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5711 | CGM.getModule().getGlobalVariable(VTableName); |
| 5712 | if (!VTableGV) |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5713 | VTableGV = new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.Int8PtrTy, |
| 5714 | false, |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5715 | llvm::GlobalValue::ExternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5716 | 0, VTableName); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5717 | |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 5718 | llvm::Value *VTableIdx = llvm::ConstantInt::get(llvm::Type::getInt32Ty(VMContext), 2); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5719 | |
| 5720 | std::vector<llvm::Constant*> Values(3); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 5721 | Values[0] = llvm::ConstantExpr::getGetElementPtr(VTableGV, &VTableIdx, 1); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5722 | Values[1] = GetClassName(ID->getIdentifier()); |
Fariborz Jahanian | 0f90294 | 2009-04-14 18:41:56 +0000 | [diff] [blame] | 5723 | Values[2] = GetClassGlobal(ClassName); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 5724 | llvm::Constant *Init = |
Owen Anderson | 08e2524 | 2009-07-27 22:29:56 +0000 | [diff] [blame] | 5725 | llvm::ConstantStruct::get(ObjCTypes.EHTypeTy, Values); |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5726 | |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5727 | if (Entry) { |
| 5728 | Entry->setInitializer(Init); |
| 5729 | } else { |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 5730 | Entry = new llvm::GlobalVariable(CGM.getModule(), ObjCTypes.EHTypeTy, false, |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5731 | llvm::GlobalValue::WeakAnyLinkage, |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5732 | Init, |
Daniel Dunbar | 9c29bf5 | 2009-10-18 20:48:59 +0000 | [diff] [blame] | 5733 | ("OBJC_EHTYPE_$_" + |
Daniel Dunbar | 01eb9b9 | 2009-10-18 21:17:35 +0000 | [diff] [blame] | 5734 | ID->getIdentifier()->getName())); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5735 | } |
| 5736 | |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 5737 | if (CGM.getLangOptions().getVisibilityMode() == LangOptions::Hidden) |
Daniel Dunbar | 6ab187a | 2009-04-07 05:48:37 +0000 | [diff] [blame] | 5738 | Entry->setVisibility(llvm::GlobalValue::HiddenVisibility); |
Daniel Dunbar | 8158a2f | 2009-04-08 04:21:03 +0000 | [diff] [blame] | 5739 | Entry->setAlignment(8); |
| 5740 | |
| 5741 | if (ForDefinition) { |
| 5742 | Entry->setSection("__DATA,__objc_const"); |
| 5743 | Entry->setLinkage(llvm::GlobalValue::ExternalLinkage); |
| 5744 | } else { |
| 5745 | Entry->setSection("__DATA,__datacoal_nt,coalesced"); |
| 5746 | } |
Daniel Dunbar | e588b99 | 2009-03-01 04:46:24 +0000 | [diff] [blame] | 5747 | |
| 5748 | return Entry; |
| 5749 | } |
Daniel Dunbar | 6bff251 | 2009-08-03 17:06:42 +0000 | [diff] [blame] | 5750 | |
Daniel Dunbar | bbce49b | 2008-08-12 00:12:39 +0000 | [diff] [blame] | 5751 | /* *** */ |
| 5752 | |
Daniel Dunbar | 6efc0c5 | 2008-08-13 03:21:16 +0000 | [diff] [blame] | 5753 | CodeGen::CGObjCRuntime * |
| 5754 | CodeGen::CreateMacObjCRuntime(CodeGen::CodeGenModule &CGM) { |
Daniel Dunbar | c17a4d3 | 2008-08-11 02:45:11 +0000 | [diff] [blame] | 5755 | return new CGObjCMac(CGM); |
| 5756 | } |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 5757 | |
| 5758 | CodeGen::CGObjCRuntime * |
Fariborz Jahanian | 30bc571 | 2009-01-22 23:02:58 +0000 | [diff] [blame] | 5759 | CodeGen::CreateMacNonFragileABIObjCRuntime(CodeGen::CodeGenModule &CGM) { |
Fariborz Jahanian | aa23b57 | 2009-01-23 23:53:38 +0000 | [diff] [blame] | 5760 | return new CGObjCNonFragileABIMac(CGM); |
Fariborz Jahanian | ee0af74 | 2009-01-21 22:04:16 +0000 | [diff] [blame] | 5761 | } |