Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 1 | //===--- CGBlocks.cpp - Emit LLVM Code for declarations -------------------===// |
| 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 contains code to emit blocks. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 14 | #include "CGDebugInfo.h" |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 15 | #include "CodeGenFunction.h" |
Fariborz Jahanian | 263c4de | 2010-02-10 23:34:57 +0000 | [diff] [blame] | 16 | #include "CGObjCRuntime.h" |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 17 | #include "CodeGenModule.h" |
Mike Stump | 6cc88f7 | 2009-03-20 21:53:12 +0000 | [diff] [blame] | 18 | #include "clang/AST/DeclObjC.h" |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 19 | #include "llvm/Module.h" |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 20 | #include "llvm/Target/TargetData.h" |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 21 | #include <algorithm> |
Torok Edwin | f42e4a6 | 2009-08-24 13:25:12 +0000 | [diff] [blame] | 22 | |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 23 | using namespace clang; |
| 24 | using namespace CodeGen; |
| 25 | |
Mike Stump | cf62d39 | 2009-03-06 18:42:23 +0000 | [diff] [blame] | 26 | llvm::Constant *CodeGenFunction:: |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 27 | BuildDescriptorBlockDecl(const BlockExpr *BE, bool BlockHasCopyDispose, CharUnits Size, |
Mike Stump | a803b0e | 2009-03-25 17:58:24 +0000 | [diff] [blame] | 28 | const llvm::StructType* Ty, |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 29 | std::vector<HelperInfo> *NoteForHelper) { |
Mike Stump | 56129b1 | 2009-02-13 16:55:51 +0000 | [diff] [blame] | 30 | const llvm::Type *UnsignedLongTy |
| 31 | = CGM.getTypes().ConvertType(getContext().UnsignedLongTy); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 32 | llvm::Constant *C; |
| 33 | std::vector<llvm::Constant*> Elts; |
| 34 | |
| 35 | // reserved |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 36 | C = llvm::ConstantInt::get(UnsignedLongTy, 0); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 37 | Elts.push_back(C); |
| 38 | |
| 39 | // Size |
Mike Stump | d684000 | 2009-02-21 20:07:44 +0000 | [diff] [blame] | 40 | // FIXME: What is the right way to say this doesn't fit? We should give |
| 41 | // a user diagnostic in that case. Better fix would be to change the |
| 42 | // API to size_t. |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 43 | C = llvm::ConstantInt::get(UnsignedLongTy, Size.getQuantity()); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 44 | Elts.push_back(C); |
| 45 | |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 46 | // optional copy/dispose helpers |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 47 | if (BlockHasCopyDispose) { |
| 48 | // copy_func_helper_decl |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 49 | Elts.push_back(BuildCopyHelper(Ty, NoteForHelper)); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 50 | |
| 51 | // destroy_func_decl |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 52 | Elts.push_back(BuildDestroyHelper(Ty, NoteForHelper)); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 53 | } |
| 54 | |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 55 | // Signature. non-optional ObjC-style method descriptor @encode sequence |
| 56 | std::string BlockTypeEncoding; |
| 57 | CGM.getContext().getObjCEncodingForBlock(BE, BlockTypeEncoding); |
| 58 | |
| 59 | Elts.push_back(llvm::ConstantExpr::getBitCast( |
| 60 | CGM.GetAddrOfConstantCString(BlockTypeEncoding), PtrToInt8Ty)); |
| 61 | |
| 62 | // Layout. |
| 63 | C = llvm::ConstantInt::get(UnsignedLongTy, 0); |
| 64 | Elts.push_back(C); |
| 65 | |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 66 | C = llvm::ConstantStruct::get(VMContext, Elts, false); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 67 | |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 68 | C = new llvm::GlobalVariable(CGM.getModule(), C->getType(), true, |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 69 | llvm::GlobalValue::InternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 70 | C, "__block_descriptor_tmp"); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 71 | return C; |
| 72 | } |
| 73 | |
Mike Stump | 2a99814 | 2009-03-04 18:17:45 +0000 | [diff] [blame] | 74 | llvm::Constant *BlockModule::getNSConcreteGlobalBlock() { |
Chris Lattner | e2f79b6 | 2009-05-13 02:50:56 +0000 | [diff] [blame] | 75 | if (NSConcreteGlobalBlock == 0) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 76 | NSConcreteGlobalBlock = CGM.CreateRuntimeVariable(PtrToInt8Ty, |
Chris Lattner | e2f79b6 | 2009-05-13 02:50:56 +0000 | [diff] [blame] | 77 | "_NSConcreteGlobalBlock"); |
Mike Stump | f99f1d0 | 2009-02-13 17:23:42 +0000 | [diff] [blame] | 78 | return NSConcreteGlobalBlock; |
| 79 | } |
| 80 | |
Mike Stump | 2a99814 | 2009-03-04 18:17:45 +0000 | [diff] [blame] | 81 | llvm::Constant *BlockModule::getNSConcreteStackBlock() { |
Chris Lattner | e2f79b6 | 2009-05-13 02:50:56 +0000 | [diff] [blame] | 82 | if (NSConcreteStackBlock == 0) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 83 | NSConcreteStackBlock = CGM.CreateRuntimeVariable(PtrToInt8Ty, |
Chris Lattner | e2f79b6 | 2009-05-13 02:50:56 +0000 | [diff] [blame] | 84 | "_NSConcreteStackBlock"); |
Mike Stump | 59c5b11 | 2009-02-13 19:29:27 +0000 | [diff] [blame] | 85 | return NSConcreteStackBlock; |
| 86 | } |
| 87 | |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 88 | static void CollectBlockDeclRefInfo( |
| 89 | const Stmt *S, CodeGenFunction::BlockInfo &Info, |
| 90 | llvm::SmallSet<const DeclContext *, 16> &InnerContexts) { |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 91 | for (Stmt::const_child_iterator I = S->child_begin(), E = S->child_end(); |
| 92 | I != E; ++I) |
Daniel Dunbar | 82573ee | 2009-03-02 07:00:57 +0000 | [diff] [blame] | 93 | if (*I) |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 94 | CollectBlockDeclRefInfo(*I, Info, InnerContexts); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 95 | |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 96 | // We want to ensure we walk down into block literals so we can find |
| 97 | // all nested BlockDeclRefExprs. |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 98 | if (const BlockExpr *BE = dyn_cast<BlockExpr>(S)) { |
| 99 | InnerContexts.insert(cast<DeclContext>(BE->getBlockDecl())); |
| 100 | CollectBlockDeclRefInfo(BE->getBody(), Info, InnerContexts); |
| 101 | } |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 102 | |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 103 | if (const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(S)) { |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 104 | // FIXME: Handle enums. |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 105 | if (isa<FunctionDecl>(BDRE->getDecl())) |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 106 | return; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 107 | |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 108 | // Only Decls that escape are added. |
| 109 | if (!InnerContexts.count(BDRE->getDecl()->getDeclContext())) |
| 110 | Info.DeclRefs.push_back(BDRE); |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 111 | } |
| 112 | } |
| 113 | |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 114 | /// CanBlockBeGlobal - Given a BlockInfo struct, determines if a block can be |
| 115 | /// declared as a global variable instead of on the stack. |
Chris Lattner | e2f79b6 | 2009-05-13 02:50:56 +0000 | [diff] [blame] | 116 | static bool CanBlockBeGlobal(const CodeGenFunction::BlockInfo &Info) { |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 117 | return Info.DeclRefs.empty(); |
| 118 | } |
| 119 | |
| 120 | /// AllocateAllBlockDeclRefs - Preallocate all nested BlockDeclRefExprs to |
| 121 | /// ensure we can generate the debug information for the parameter for the block |
| 122 | /// invoke function. |
| 123 | static void AllocateAllBlockDeclRefs(const CodeGenFunction::BlockInfo &Info, |
| 124 | CodeGenFunction *CGF) { |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 125 | // FIXME: Also always forward the this pointer in C++ as well. |
| 126 | |
| 127 | for (size_t i = 0; i < Info.DeclRefs.size(); ++i) |
| 128 | CGF->AllocateBlockDecl(Info.DeclRefs[i]); |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 129 | } |
| 130 | |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 131 | // FIXME: Push most into CGM, passing down a few bits, like current function |
| 132 | // name. |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 133 | llvm::Value *CodeGenFunction::BuildBlockLiteralTmp(const BlockExpr *BE) { |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 134 | |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 135 | std::string Name = CurFn->getName(); |
| 136 | CodeGenFunction::BlockInfo Info(0, Name.c_str()); |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 137 | llvm::SmallSet<const DeclContext *, 16> InnerContexts; |
| 138 | InnerContexts.insert(BE->getBlockDecl()); |
| 139 | CollectBlockDeclRefInfo(BE->getBody(), Info, InnerContexts); |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 140 | |
| 141 | // Check if the block can be global. |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 142 | // FIXME: This test doesn't work for nested blocks yet. Longer term, I'd like |
| 143 | // to just have one code path. We should move this function into CGM and pass |
| 144 | // CGF, then we can just check to see if CGF is 0. |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 145 | if (0 && CanBlockBeGlobal(Info)) |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 146 | return CGM.GetAddrOfGlobalBlock(BE, Name.c_str()); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 147 | |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 148 | size_t BlockFields = 5; |
| 149 | |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 150 | std::vector<llvm::Constant*> Elts(BlockFields); |
| 151 | |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 152 | llvm::Constant *C; |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 153 | llvm::Value *V; |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 154 | |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 155 | { |
| 156 | // C = BuildBlockStructInitlist(); |
Blaine Garst | a36e223 | 2010-03-05 01:29:59 +0000 | [diff] [blame] | 157 | unsigned int flags = BLOCK_HAS_SIGNATURE; |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 158 | |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 159 | // We run this first so that we set BlockHasCopyDispose from the entire |
| 160 | // block literal. |
| 161 | // __invoke |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 162 | CharUnits subBlockSize; |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 163 | CharUnits subBlockAlign; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 164 | llvm::SmallVector<const Expr *, 8> subBlockDeclRefDecls; |
Mike Stump | a803b0e | 2009-03-25 17:58:24 +0000 | [diff] [blame] | 165 | bool subBlockHasCopyDispose = false; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 166 | llvm::Function *Fn |
Mike Stump | bb30419 | 2009-09-24 22:31:14 +0000 | [diff] [blame] | 167 | = CodeGenFunction(CGM).GenerateBlockFunction(BE, Info, CurFuncDecl, |
| 168 | LocalDeclMap, |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 169 | subBlockSize, |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 170 | subBlockAlign, |
| 171 | subBlockDeclRefDecls, |
Mike Stump | a803b0e | 2009-03-25 17:58:24 +0000 | [diff] [blame] | 172 | subBlockHasCopyDispose); |
| 173 | BlockHasCopyDispose |= subBlockHasCopyDispose; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 174 | Elts[3] = Fn; |
| 175 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 176 | // FIXME: Don't use BlockHasCopyDispose, it is set more often then |
| 177 | // necessary, for example: { ^{ __block int i; ^{ i = 1; }(); }(); } |
Mike Stump | a803b0e | 2009-03-25 17:58:24 +0000 | [diff] [blame] | 178 | if (subBlockHasCopyDispose) |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 179 | flags |= BLOCK_HAS_COPY_DISPOSE; |
| 180 | |
Mike Stump | 7d6dc4f | 2009-02-13 20:17:16 +0000 | [diff] [blame] | 181 | // __isa |
Mike Stump | 59c5b11 | 2009-02-13 19:29:27 +0000 | [diff] [blame] | 182 | C = CGM.getNSConcreteStackBlock(); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 183 | C = llvm::ConstantExpr::getBitCast(C, PtrToInt8Ty); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 184 | Elts[0] = C; |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 185 | |
| 186 | // __flags |
Blaine Garst | a36e223 | 2010-03-05 01:29:59 +0000 | [diff] [blame] | 187 | { |
| 188 | QualType BPT = BE->getType(); |
| 189 | const FunctionType *ftype = BPT->getPointeeType()->getAs<FunctionType>(); |
| 190 | QualType ResultType = ftype->getResultType(); |
| 191 | |
| 192 | CallArgList Args; |
| 193 | CodeGenTypes &Types = CGM.getTypes(); |
| 194 | const CGFunctionInfo &FnInfo = Types.getFunctionInfo(ResultType, Args, |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame^] | 195 | FunctionType::ExtInfo()); |
Blaine Garst | a36e223 | 2010-03-05 01:29:59 +0000 | [diff] [blame] | 196 | if (CGM.ReturnTypeUsesSret(FnInfo)) |
| 197 | flags |= BLOCK_USE_STRET; |
| 198 | } |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 199 | const llvm::IntegerType *IntTy = cast<llvm::IntegerType>( |
| 200 | CGM.getTypes().ConvertType(CGM.getContext().IntTy)); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 201 | C = llvm::ConstantInt::get(IntTy, flags); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 202 | Elts[1] = C; |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 203 | |
| 204 | // __reserved |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 205 | C = llvm::ConstantInt::get(IntTy, 0); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 206 | Elts[2] = C; |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 207 | |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 208 | if (subBlockDeclRefDecls.size() == 0) { |
Mike Stump | cf62d39 | 2009-03-06 18:42:23 +0000 | [diff] [blame] | 209 | // __descriptor |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 210 | Elts[4] = BuildDescriptorBlockDecl(BE, subBlockHasCopyDispose, subBlockSize, |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 211 | 0, 0); |
Mike Stump | cf62d39 | 2009-03-06 18:42:23 +0000 | [diff] [blame] | 212 | |
Mike Stump | 5570cfe | 2009-03-01 20:07:53 +0000 | [diff] [blame] | 213 | // Optimize to being a global block. |
| 214 | Elts[0] = CGM.getNSConcreteGlobalBlock(); |
Blaine Garst | a36e223 | 2010-03-05 01:29:59 +0000 | [diff] [blame] | 215 | |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 216 | Elts[1] = llvm::ConstantInt::get(IntTy, flags|BLOCK_IS_GLOBAL); |
Mike Stump | 5570cfe | 2009-03-01 20:07:53 +0000 | [diff] [blame] | 217 | |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 218 | C = llvm::ConstantStruct::get(VMContext, Elts, false); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 219 | |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 220 | C = new llvm::GlobalVariable(CGM.getModule(), C->getType(), true, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 221 | llvm::GlobalValue::InternalLinkage, C, |
| 222 | "__block_holder_tmp_" + |
| 223 | llvm::Twine(CGM.getGlobalUniqueCount())); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 224 | QualType BPT = BE->getType(); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 225 | C = llvm::ConstantExpr::getBitCast(C, ConvertType(BPT)); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 226 | return C; |
| 227 | } |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 228 | |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 229 | std::vector<const llvm::Type *> Types(BlockFields+subBlockDeclRefDecls.size()); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 230 | for (int i=0; i<4; ++i) |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 231 | Types[i] = Elts[i]->getType(); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 232 | Types[4] = PtrToInt8Ty; |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 233 | |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 234 | for (unsigned i=0; i < subBlockDeclRefDecls.size(); ++i) { |
| 235 | const Expr *E = subBlockDeclRefDecls[i]; |
| 236 | const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); |
| 237 | QualType Ty = E->getType(); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 238 | if (BDRE && BDRE->isByRef()) { |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 239 | Types[i+BlockFields] = llvm::PointerType::get(BuildByRefType(BDRE->getDecl()), 0); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 240 | } else |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 241 | Types[i+BlockFields] = ConvertType(Ty); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 242 | } |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 243 | |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 244 | llvm::StructType *Ty = llvm::StructType::get(VMContext, Types, true); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 245 | |
| 246 | llvm::AllocaInst *A = CreateTempAlloca(Ty); |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 247 | A->setAlignment(subBlockAlign.getQuantity()); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 248 | V = A; |
| 249 | |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 250 | std::vector<HelperInfo> NoteForHelper(subBlockDeclRefDecls.size()); |
| 251 | int helpersize = 0; |
| 252 | |
| 253 | for (unsigned i=0; i<4; ++i) |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 254 | Builder.CreateStore(Elts[i], Builder.CreateStructGEP(V, i, "block.tmp")); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 255 | |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 256 | for (unsigned i=0; i < subBlockDeclRefDecls.size(); ++i) |
| 257 | { |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 258 | // FIXME: Push const down. |
| 259 | Expr *E = const_cast<Expr*>(subBlockDeclRefDecls[i]); |
| 260 | DeclRefExpr *DR; |
| 261 | ValueDecl *VD; |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 262 | |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 263 | DR = dyn_cast<DeclRefExpr>(E); |
| 264 | // Skip padding. |
| 265 | if (DR) continue; |
| 266 | |
| 267 | BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); |
| 268 | VD = BDRE->getDecl(); |
| 269 | |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 270 | llvm::Value* Addr = Builder.CreateStructGEP(V, i+BlockFields, "tmp"); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 271 | NoteForHelper[helpersize].index = i+5; |
Mike Stump | 39605b4 | 2009-09-22 02:12:52 +0000 | [diff] [blame] | 272 | NoteForHelper[helpersize].RequiresCopying |
| 273 | = BlockRequiresCopying(VD->getType()); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 274 | NoteForHelper[helpersize].flag |
Mike Stump | 39605b4 | 2009-09-22 02:12:52 +0000 | [diff] [blame] | 275 | = (VD->getType()->isBlockPointerType() |
| 276 | ? BLOCK_FIELD_IS_BLOCK |
| 277 | : BLOCK_FIELD_IS_OBJECT); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 278 | |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 279 | if (LocalDeclMap[VD]) { |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 280 | if (BDRE->isByRef()) { |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 281 | NoteForHelper[helpersize].flag = BLOCK_FIELD_IS_BYREF | |
Mike Stump | f4bc312 | 2009-03-07 06:04:31 +0000 | [diff] [blame] | 282 | // FIXME: Someone double check this. |
| 283 | (VD->getType().isObjCGCWeak() ? BLOCK_FIELD_IS_WEAK : 0); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 284 | llvm::Value *Loc = LocalDeclMap[VD]; |
| 285 | Loc = Builder.CreateStructGEP(Loc, 1, "forwarding"); |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 286 | Loc = Builder.CreateLoad(Loc); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 287 | Builder.CreateStore(Loc, Addr); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 288 | ++helpersize; |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 289 | continue; |
| 290 | } else |
John McCall | dbd872f | 2009-12-08 09:08:17 +0000 | [diff] [blame] | 291 | E = new (getContext()) DeclRefExpr (VD, |
Douglas Gregor | 0da76df | 2009-11-23 11:41:28 +0000 | [diff] [blame] | 292 | VD->getType(), |
| 293 | SourceLocation()); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 294 | } |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 295 | if (BDRE->isByRef()) { |
Mike Stump | a8b60c9 | 2009-03-21 21:00:35 +0000 | [diff] [blame] | 296 | NoteForHelper[helpersize].flag = BLOCK_FIELD_IS_BYREF | |
| 297 | // FIXME: Someone double check this. |
| 298 | (VD->getType().isObjCGCWeak() ? BLOCK_FIELD_IS_WEAK : 0); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 299 | E = new (getContext()) |
| 300 | UnaryOperator(E, UnaryOperator::AddrOf, |
| 301 | getContext().getPointerType(E->getType()), |
| 302 | SourceLocation()); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 303 | } |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 304 | ++helpersize; |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 305 | |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 306 | RValue r = EmitAnyExpr(E, Addr, false); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 307 | if (r.isScalar()) { |
| 308 | llvm::Value *Loc = r.getScalarVal(); |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 309 | const llvm::Type *Ty = Types[i+BlockFields]; |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 310 | if (BDRE->isByRef()) { |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 311 | // E is now the address of the value field, instead, we want the |
| 312 | // address of the actual ByRef struct. We optimize this slightly |
| 313 | // compared to gcc by not grabbing the forwarding slot as this must |
| 314 | // be done during Block_copy for us, and we can postpone the work |
| 315 | // until then. |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 316 | CharUnits offset = BlockDecls[BDRE->getDecl()]; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 317 | |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 318 | llvm::Value *BlockLiteral = LoadBlockStruct(); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 319 | |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 320 | Loc = Builder.CreateGEP(BlockLiteral, |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 321 | llvm::ConstantInt::get(llvm::Type::getInt64Ty(VMContext), |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 322 | offset.getQuantity()), |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 323 | "block.literal"); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 324 | Ty = llvm::PointerType::get(Ty, 0); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 325 | Loc = Builder.CreateBitCast(Loc, Ty); |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 326 | Loc = Builder.CreateLoad(Loc); |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 327 | // Loc = Builder.CreateBitCast(Loc, Ty); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 328 | } |
| 329 | Builder.CreateStore(Loc, Addr); |
| 330 | } else if (r.isComplex()) |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 331 | // FIXME: implement |
| 332 | ErrorUnsupported(BE, "complex in block literal"); |
| 333 | else if (r.isAggregate()) |
| 334 | ; // Already created into the destination |
| 335 | else |
| 336 | assert (0 && "bad block variable"); |
| 337 | // FIXME: Ensure that the offset created by the backend for |
| 338 | // the struct matches the previously computed offset in BlockDecls. |
| 339 | } |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 340 | NoteForHelper.resize(helpersize); |
Mike Stump | cf62d39 | 2009-03-06 18:42:23 +0000 | [diff] [blame] | 341 | |
| 342 | // __descriptor |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 343 | llvm::Value *Descriptor = BuildDescriptorBlockDecl(BE, |
| 344 | subBlockHasCopyDispose, |
Mike Stump | a803b0e | 2009-03-25 17:58:24 +0000 | [diff] [blame] | 345 | subBlockSize, Ty, |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 346 | &NoteForHelper); |
| 347 | Descriptor = Builder.CreateBitCast(Descriptor, PtrToInt8Ty); |
| 348 | Builder.CreateStore(Descriptor, Builder.CreateStructGEP(V, 4, "block.tmp")); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 349 | } |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 350 | |
Mike Stump | bd65cac | 2009-02-19 01:01:04 +0000 | [diff] [blame] | 351 | QualType BPT = BE->getType(); |
Fariborz Jahanian | 263c4de | 2010-02-10 23:34:57 +0000 | [diff] [blame] | 352 | V = Builder.CreateBitCast(V, ConvertType(BPT)); |
| 353 | // See if this is a __weak block variable and the must call objc_read_weak |
| 354 | // on it. |
| 355 | const FunctionType *ftype = BPT->getPointeeType()->getAs<FunctionType>(); |
| 356 | QualType RES = ftype->getResultType(); |
| 357 | if (RES.isObjCGCWeak()) { |
| 358 | // Must cast argument to id* |
| 359 | const llvm::Type *ObjectPtrTy = |
| 360 | ConvertType(CGM.getContext().getObjCIdType()); |
| 361 | const llvm::Type *PtrObjectPtrTy = |
| 362 | llvm::PointerType::getUnqual(ObjectPtrTy); |
| 363 | V = Builder.CreateBitCast(V, PtrObjectPtrTy); |
| 364 | V = CGM.getObjCRuntime().EmitObjCWeakRead(*this, V); |
| 365 | } |
| 366 | return V; |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | |
Mike Stump | 2a99814 | 2009-03-04 18:17:45 +0000 | [diff] [blame] | 370 | const llvm::Type *BlockModule::getBlockDescriptorType() { |
Mike Stump | ab69514 | 2009-02-13 15:16:56 +0000 | [diff] [blame] | 371 | if (BlockDescriptorType) |
| 372 | return BlockDescriptorType; |
| 373 | |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 374 | const llvm::Type *UnsignedLongTy = |
Mike Stump | ab69514 | 2009-02-13 15:16:56 +0000 | [diff] [blame] | 375 | getTypes().ConvertType(getContext().UnsignedLongTy); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 376 | |
Mike Stump | ab69514 | 2009-02-13 15:16:56 +0000 | [diff] [blame] | 377 | // struct __block_descriptor { |
| 378 | // unsigned long reserved; |
| 379 | // unsigned long block_size; |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 380 | // |
| 381 | // // later, the following will be added |
| 382 | // |
| 383 | // struct { |
| 384 | // void (*copyHelper)(); |
| 385 | // void (*copyHelper)(); |
| 386 | // } helpers; // !!! optional |
| 387 | // |
| 388 | // const char *signature; // the block signature |
| 389 | // const char *layout; // reserved |
Mike Stump | ab69514 | 2009-02-13 15:16:56 +0000 | [diff] [blame] | 390 | // }; |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 391 | BlockDescriptorType = llvm::StructType::get(UnsignedLongTy->getContext(), |
| 392 | UnsignedLongTy, |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 393 | UnsignedLongTy, |
Mike Stump | ab69514 | 2009-02-13 15:16:56 +0000 | [diff] [blame] | 394 | NULL); |
| 395 | |
| 396 | getModule().addTypeName("struct.__block_descriptor", |
| 397 | BlockDescriptorType); |
| 398 | |
| 399 | return BlockDescriptorType; |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 400 | } |
| 401 | |
Mike Stump | 2a99814 | 2009-03-04 18:17:45 +0000 | [diff] [blame] | 402 | const llvm::Type *BlockModule::getGenericBlockLiteralType() { |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 403 | if (GenericBlockLiteralType) |
| 404 | return GenericBlockLiteralType; |
| 405 | |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 406 | const llvm::Type *BlockDescPtrTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 407 | llvm::PointerType::getUnqual(getBlockDescriptorType()); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 408 | |
Mike Stump | 7cbb360 | 2009-02-13 16:01:35 +0000 | [diff] [blame] | 409 | const llvm::IntegerType *IntTy = cast<llvm::IntegerType>( |
| 410 | getTypes().ConvertType(getContext().IntTy)); |
| 411 | |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 412 | // struct __block_literal_generic { |
Mike Stump | bd65cac | 2009-02-19 01:01:04 +0000 | [diff] [blame] | 413 | // void *__isa; |
| 414 | // int __flags; |
| 415 | // int __reserved; |
| 416 | // void (*__invoke)(void *); |
| 417 | // struct __block_descriptor *__descriptor; |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 418 | // }; |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 419 | GenericBlockLiteralType = llvm::StructType::get(IntTy->getContext(), |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 420 | PtrToInt8Ty, |
Mike Stump | 7cbb360 | 2009-02-13 16:01:35 +0000 | [diff] [blame] | 421 | IntTy, |
| 422 | IntTy, |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 423 | PtrToInt8Ty, |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 424 | BlockDescPtrTy, |
| 425 | NULL); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 426 | |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 427 | getModule().addTypeName("struct.__block_literal_generic", |
| 428 | GenericBlockLiteralType); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 429 | |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 430 | return GenericBlockLiteralType; |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 431 | } |
| 432 | |
Mike Stump | bd65cac | 2009-02-19 01:01:04 +0000 | [diff] [blame] | 433 | |
Anders Carlsson | a1736c0 | 2009-12-24 21:13:40 +0000 | [diff] [blame] | 434 | RValue CodeGenFunction::EmitBlockCallExpr(const CallExpr* E, |
| 435 | ReturnValueSlot ReturnValue) { |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 436 | const BlockPointerType *BPT = |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 437 | E->getCallee()->getType()->getAs<BlockPointerType>(); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 438 | |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 439 | llvm::Value *Callee = EmitScalarExpr(E->getCallee()); |
| 440 | |
| 441 | // Get a pointer to the generic block literal. |
| 442 | const llvm::Type *BlockLiteralTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 443 | llvm::PointerType::getUnqual(CGM.getGenericBlockLiteralType()); |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 444 | |
| 445 | // Bitcast the callee to a block literal. |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 446 | llvm::Value *BlockLiteral = |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 447 | Builder.CreateBitCast(Callee, BlockLiteralTy, "block.literal"); |
| 448 | |
| 449 | // Get the function pointer from the literal. |
| 450 | llvm::Value *FuncPtr = Builder.CreateStructGEP(BlockLiteral, 3, "tmp"); |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 451 | |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 452 | BlockLiteral = |
| 453 | Builder.CreateBitCast(BlockLiteral, |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 454 | llvm::Type::getInt8PtrTy(VMContext), |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 455 | "tmp"); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 456 | |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 457 | // Add the block literal. |
| 458 | QualType VoidPtrTy = getContext().getPointerType(getContext().VoidTy); |
| 459 | CallArgList Args; |
| 460 | Args.push_back(std::make_pair(RValue::get(BlockLiteral), VoidPtrTy)); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 461 | |
Anders Carlsson | 782f397 | 2009-04-08 23:13:16 +0000 | [diff] [blame] | 462 | QualType FnType = BPT->getPointeeType(); |
| 463 | |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 464 | // And the rest of the arguments. |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 465 | EmitCallArgs(Args, FnType->getAs<FunctionProtoType>(), |
Anders Carlsson | 782f397 | 2009-04-08 23:13:16 +0000 | [diff] [blame] | 466 | E->arg_begin(), E->arg_end()); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 467 | |
Anders Carlsson | 6e460ff | 2009-04-07 22:10:22 +0000 | [diff] [blame] | 468 | // Load the function. |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 469 | llvm::Value *Func = Builder.CreateLoad(FuncPtr, "tmp"); |
Anders Carlsson | 6e460ff | 2009-04-07 22:10:22 +0000 | [diff] [blame] | 470 | |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 471 | const FunctionType *FuncTy = FnType->getAs<FunctionType>(); |
| 472 | QualType ResultType = FuncTy->getResultType(); |
Anders Carlsson | a17d7cc | 2009-04-08 02:55:55 +0000 | [diff] [blame] | 473 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 474 | const CGFunctionInfo &FnInfo = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame^] | 475 | CGM.getTypes().getFunctionInfo(ResultType, Args, |
| 476 | FuncTy->getExtInfo()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 477 | |
Anders Carlsson | 6e460ff | 2009-04-07 22:10:22 +0000 | [diff] [blame] | 478 | // Cast the function pointer to the right type. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 479 | const llvm::Type *BlockFTy = |
Anders Carlsson | a17d7cc | 2009-04-08 02:55:55 +0000 | [diff] [blame] | 480 | CGM.getTypes().GetFunctionType(FnInfo, false); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 481 | |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 482 | const llvm::Type *BlockFTyPtr = llvm::PointerType::getUnqual(BlockFTy); |
Anders Carlsson | 6e460ff | 2009-04-07 22:10:22 +0000 | [diff] [blame] | 483 | Func = Builder.CreateBitCast(Func, BlockFTyPtr); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 484 | |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 485 | // And call the block. |
Anders Carlsson | a1736c0 | 2009-12-24 21:13:40 +0000 | [diff] [blame] | 486 | return EmitCall(FnInfo, Func, ReturnValue, Args); |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 487 | } |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 488 | |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 489 | CharUnits CodeGenFunction::AllocateBlockDecl(const BlockDeclRefExpr *E) { |
Anders Carlsson | 7dfa407 | 2009-09-12 02:14:24 +0000 | [diff] [blame] | 490 | const ValueDecl *VD = E->getDecl(); |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 491 | CharUnits &offset = BlockDecls[VD]; |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 492 | |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 493 | // See if we have already allocated an offset for this variable. |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 494 | if (offset.isPositive()) |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 495 | return offset; |
| 496 | |
| 497 | // Don't run the expensive check, unless we have to. |
Mike Stump | 083c25e | 2009-10-22 00:49:09 +0000 | [diff] [blame] | 498 | if (!BlockHasCopyDispose) |
| 499 | if (E->isByRef() |
| 500 | || BlockRequiresCopying(E->getType())) |
| 501 | BlockHasCopyDispose = true; |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 502 | |
| 503 | // if not, allocate one now. |
| 504 | offset = getBlockOffset(E); |
| 505 | |
| 506 | return offset; |
| 507 | } |
| 508 | |
| 509 | llvm::Value *CodeGenFunction::GetAddrOfBlockDecl(const BlockDeclRefExpr *E) { |
| 510 | const ValueDecl *VD = E->getDecl(); |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 511 | CharUnits offset = AllocateBlockDecl(E); |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 512 | |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 513 | |
| 514 | llvm::Value *BlockLiteral = LoadBlockStruct(); |
| 515 | llvm::Value *V = Builder.CreateGEP(BlockLiteral, |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 516 | llvm::ConstantInt::get(llvm::Type::getInt64Ty(VMContext), |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 517 | offset.getQuantity()), |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 518 | "block.literal"); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 519 | if (E->isByRef()) { |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 520 | const llvm::Type *PtrStructTy |
Anders Carlsson | 7dfa407 | 2009-09-12 02:14:24 +0000 | [diff] [blame] | 521 | = llvm::PointerType::get(BuildByRefType(VD), 0); |
Mike Stump | a8b60c9 | 2009-03-21 21:00:35 +0000 | [diff] [blame] | 522 | // The block literal will need a copy/destroy helper. |
| 523 | BlockHasCopyDispose = true; |
Anders Carlsson | 7dfa407 | 2009-09-12 02:14:24 +0000 | [diff] [blame] | 524 | |
| 525 | const llvm::Type *Ty = PtrStructTy; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 526 | Ty = llvm::PointerType::get(Ty, 0); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 527 | V = Builder.CreateBitCast(V, Ty); |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 528 | V = Builder.CreateLoad(V); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 529 | V = Builder.CreateStructGEP(V, 1, "forwarding"); |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 530 | V = Builder.CreateLoad(V); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 531 | V = Builder.CreateBitCast(V, PtrStructTy); |
Anders Carlsson | 7dfa407 | 2009-09-12 02:14:24 +0000 | [diff] [blame] | 532 | V = Builder.CreateStructGEP(V, getByRefValueLLVMField(VD), |
| 533 | VD->getNameAsString()); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 534 | } else { |
Anders Carlsson | 7dfa407 | 2009-09-12 02:14:24 +0000 | [diff] [blame] | 535 | const llvm::Type *Ty = CGM.getTypes().ConvertType(VD->getType()); |
| 536 | |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 537 | Ty = llvm::PointerType::get(Ty, 0); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 538 | V = Builder.CreateBitCast(V, Ty); |
| 539 | } |
| 540 | return V; |
| 541 | } |
| 542 | |
Mike Stump | 6cc88f7 | 2009-03-20 21:53:12 +0000 | [diff] [blame] | 543 | void CodeGenFunction::BlockForwardSelf() { |
| 544 | const ObjCMethodDecl *OMD = cast<ObjCMethodDecl>(CurFuncDecl); |
| 545 | ImplicitParamDecl *SelfDecl = OMD->getSelfDecl(); |
| 546 | llvm::Value *&DMEntry = LocalDeclMap[SelfDecl]; |
| 547 | if (DMEntry) |
| 548 | return; |
| 549 | // FIXME - Eliminate BlockDeclRefExprs, clients don't need/want to care |
| 550 | BlockDeclRefExpr *BDRE = new (getContext()) |
| 551 | BlockDeclRefExpr(SelfDecl, |
| 552 | SelfDecl->getType(), SourceLocation(), false); |
| 553 | DMEntry = GetAddrOfBlockDecl(BDRE); |
| 554 | } |
| 555 | |
Mike Stump | 67a6448 | 2009-02-14 22:16:35 +0000 | [diff] [blame] | 556 | llvm::Constant * |
Mike Stump | 90a9043 | 2009-03-04 18:47:42 +0000 | [diff] [blame] | 557 | BlockModule::GetAddrOfGlobalBlock(const BlockExpr *BE, const char * n) { |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 558 | // Generate the block descriptor. |
| 559 | const llvm::Type *UnsignedLongTy = Types.ConvertType(Context.UnsignedLongTy); |
Mike Stump | 7cbb360 | 2009-02-13 16:01:35 +0000 | [diff] [blame] | 560 | const llvm::IntegerType *IntTy = cast<llvm::IntegerType>( |
| 561 | getTypes().ConvertType(getContext().IntTy)); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 562 | |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 563 | llvm::Constant *DescriptorFields[4]; |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 564 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 565 | // Reserved |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 566 | DescriptorFields[0] = llvm::Constant::getNullValue(UnsignedLongTy); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 567 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 568 | // Block literal size. For global blocks we just use the size of the generic |
| 569 | // block literal struct. |
Ken Dyck | 687cc4a | 2010-01-26 13:48:07 +0000 | [diff] [blame] | 570 | CharUnits BlockLiteralSize = |
| 571 | CGM.GetTargetTypeStoreSize(getGenericBlockLiteralType()); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 572 | DescriptorFields[1] = |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 573 | llvm::ConstantInt::get(UnsignedLongTy,BlockLiteralSize.getQuantity()); |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 574 | |
| 575 | // signature. non-optional ObjC-style method descriptor @encode sequence |
| 576 | std::string BlockTypeEncoding; |
| 577 | CGM.getContext().getObjCEncodingForBlock(BE, BlockTypeEncoding); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 578 | |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 579 | DescriptorFields[2] = llvm::ConstantExpr::getBitCast( |
| 580 | CGM.GetAddrOfConstantCString(BlockTypeEncoding), PtrToInt8Ty); |
| 581 | |
| 582 | // layout |
| 583 | DescriptorFields[3] = |
| 584 | llvm::ConstantInt::get(UnsignedLongTy,0); |
| 585 | |
| 586 | // build the structure from the 4 elements |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 587 | llvm::Constant *DescriptorStruct = |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 588 | llvm::ConstantStruct::get(VMContext, &DescriptorFields[0], 4, false); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 589 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 590 | llvm::GlobalVariable *Descriptor = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 591 | new llvm::GlobalVariable(getModule(), DescriptorStruct->getType(), true, |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 592 | llvm::GlobalVariable::InternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 593 | DescriptorStruct, "__block_descriptor_global"); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 594 | |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 595 | int FieldCount = 5; |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 596 | // Generate the constants for the block literal. |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 597 | |
| 598 | std::vector<llvm::Constant*> LiteralFields(FieldCount); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 599 | |
Mike Stump | 67a6448 | 2009-02-14 22:16:35 +0000 | [diff] [blame] | 600 | CodeGenFunction::BlockInfo Info(0, n); |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 601 | CharUnits subBlockSize; |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 602 | CharUnits subBlockAlign; |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 603 | llvm::SmallVector<const Expr *, 8> subBlockDeclRefDecls; |
Daniel Dunbar | d67b09a | 2009-03-12 03:07:24 +0000 | [diff] [blame] | 604 | bool subBlockHasCopyDispose = false; |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 605 | llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 606 | llvm::Function *Fn |
Mike Stump | 6cc88f7 | 2009-03-20 21:53:12 +0000 | [diff] [blame] | 607 | = CodeGenFunction(CGM).GenerateBlockFunction(BE, Info, 0, LocalDeclMap, |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 608 | subBlockSize, |
Mike Stump | 90a9043 | 2009-03-04 18:47:42 +0000 | [diff] [blame] | 609 | subBlockAlign, |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 610 | subBlockDeclRefDecls, |
| 611 | subBlockHasCopyDispose); |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 612 | assert(subBlockSize == BlockLiteralSize |
| 613 | && "no imports allowed for global block"); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 614 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 615 | // isa |
Mike Stump | f99f1d0 | 2009-02-13 17:23:42 +0000 | [diff] [blame] | 616 | LiteralFields[0] = getNSConcreteGlobalBlock(); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 617 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 618 | // Flags |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 619 | LiteralFields[1] = |
Blaine Garst | a36e223 | 2010-03-05 01:29:59 +0000 | [diff] [blame] | 620 | llvm::ConstantInt::get(IntTy, BLOCK_IS_GLOBAL | BLOCK_HAS_SIGNATURE); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 621 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 622 | // Reserved |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 623 | LiteralFields[2] = llvm::Constant::getNullValue(IntTy); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 624 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 625 | // Function |
| 626 | LiteralFields[3] = Fn; |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 627 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 628 | // Descriptor |
| 629 | LiteralFields[4] = Descriptor; |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 630 | |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 631 | llvm::Constant *BlockLiteralStruct = |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 632 | llvm::ConstantStruct::get(VMContext, LiteralFields, false); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 633 | |
| 634 | llvm::GlobalVariable *BlockLiteral = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 635 | new llvm::GlobalVariable(getModule(), BlockLiteralStruct->getType(), true, |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 636 | llvm::GlobalVariable::InternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 637 | BlockLiteralStruct, "__block_literal_global"); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 638 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 639 | return BlockLiteral; |
| 640 | } |
| 641 | |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 642 | llvm::Value *CodeGenFunction::LoadBlockStruct() { |
Mike Stump | bf1914b | 2009-10-20 20:30:01 +0000 | [diff] [blame] | 643 | llvm::Value *V = Builder.CreateLoad(LocalDeclMap[getBlockStructDecl()], |
| 644 | "self"); |
| 645 | // For now, we codegen based upon byte offsets. |
| 646 | return Builder.CreateBitCast(V, PtrToInt8Ty); |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 647 | } |
| 648 | |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 649 | llvm::Function * |
| 650 | CodeGenFunction::GenerateBlockFunction(const BlockExpr *BExpr, |
| 651 | const BlockInfo& Info, |
Mike Stump | 6cc88f7 | 2009-03-20 21:53:12 +0000 | [diff] [blame] | 652 | const Decl *OuterFuncDecl, |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 653 | llvm::DenseMap<const Decl*, llvm::Value*> ldm, |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 654 | CharUnits &Size, |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 655 | CharUnits &Align, |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 656 | llvm::SmallVector<const Expr *, 8> &subBlockDeclRefDecls, |
| 657 | bool &subBlockHasCopyDispose) { |
Devang Patel | 963dfbd | 2009-04-15 21:51:44 +0000 | [diff] [blame] | 658 | |
| 659 | // Check if we should generate debug info for this block. |
| 660 | if (CGM.getDebugInfo()) |
| 661 | DebugInfo = CGM.getDebugInfo(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 662 | |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 663 | // Arrange for local static and local extern declarations to appear |
| 664 | // to be local to this function as well, as they are directly referenced |
| 665 | // in a block. |
| 666 | for (llvm::DenseMap<const Decl *, llvm::Value*>::iterator i = ldm.begin(); |
| 667 | i != ldm.end(); |
| 668 | ++i) { |
| 669 | const VarDecl *VD = dyn_cast<VarDecl>(i->first); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 670 | |
Daniel Dunbar | 5466c7b | 2009-04-14 02:25:56 +0000 | [diff] [blame] | 671 | if (VD->getStorageClass() == VarDecl::Static || VD->hasExternalStorage()) |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 672 | LocalDeclMap[VD] = i->second; |
| 673 | } |
| 674 | |
Ken Dyck | 687cc4a | 2010-01-26 13:48:07 +0000 | [diff] [blame] | 675 | BlockOffset = |
| 676 | CGM.GetTargetTypeStoreSize(CGM.getGenericBlockLiteralType()); |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 677 | BlockAlign = getContext().getTypeAlignInChars(getContext().VoidPtrTy); |
Eli Friedman | 48f9122 | 2009-03-28 03:24:54 +0000 | [diff] [blame] | 678 | |
Fariborz Jahanian | 140fb26 | 2009-04-11 17:55:15 +0000 | [diff] [blame] | 679 | const FunctionType *BlockFunctionType = BExpr->getFunctionType(); |
| 680 | QualType ResultType; |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame^] | 681 | FunctionType::ExtInfo EInfo = getFunctionExtInfo(*BlockFunctionType); |
Fariborz Jahanian | 140fb26 | 2009-04-11 17:55:15 +0000 | [diff] [blame] | 682 | bool IsVariadic; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 683 | if (const FunctionProtoType *FTy = |
Fariborz Jahanian | da0895d | 2009-04-11 18:54:57 +0000 | [diff] [blame] | 684 | dyn_cast<FunctionProtoType>(BlockFunctionType)) { |
Fariborz Jahanian | 140fb26 | 2009-04-11 17:55:15 +0000 | [diff] [blame] | 685 | ResultType = FTy->getResultType(); |
| 686 | IsVariadic = FTy->isVariadic(); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 687 | } else { |
Fariborz Jahanian | 140fb26 | 2009-04-11 17:55:15 +0000 | [diff] [blame] | 688 | // K&R style block. |
| 689 | ResultType = BlockFunctionType->getResultType(); |
| 690 | IsVariadic = false; |
| 691 | } |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 692 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 693 | FunctionArgList Args; |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 694 | |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 695 | CurFuncDecl = OuterFuncDecl; |
| 696 | |
Chris Lattner | 161d36d | 2009-02-28 19:01:03 +0000 | [diff] [blame] | 697 | const BlockDecl *BD = BExpr->getBlockDecl(); |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 698 | |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 699 | IdentifierInfo *II = &CGM.getContext().Idents.get(".block_descriptor"); |
Mike Stump | adaaad3 | 2009-10-20 02:12:22 +0000 | [diff] [blame] | 700 | |
Mike Stump | bfbd5df | 2009-10-21 18:24:18 +0000 | [diff] [blame] | 701 | // Allocate all BlockDeclRefDecls, so we can calculate the right ParmTy below. |
Mike Stump | 0298d38 | 2009-10-21 22:02:08 +0000 | [diff] [blame] | 702 | AllocateAllBlockDeclRefs(Info, this); |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 703 | |
Mike Stump | 083c25e | 2009-10-22 00:49:09 +0000 | [diff] [blame] | 704 | QualType ParmTy = getContext().getBlockParmType(BlockHasCopyDispose, |
| 705 | BlockDeclRefDecls); |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 706 | // FIXME: This leaks |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 707 | ImplicitParamDecl *SelfDecl = |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 708 | ImplicitParamDecl::Create(getContext(), 0, |
Mike Stump | adaaad3 | 2009-10-20 02:12:22 +0000 | [diff] [blame] | 709 | SourceLocation(), II, |
| 710 | ParmTy); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 711 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 712 | Args.push_back(std::make_pair(SelfDecl, SelfDecl->getType())); |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 713 | BlockStructDecl = SelfDecl; |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 714 | |
Steve Naroff | e78b809 | 2009-03-13 16:56:44 +0000 | [diff] [blame] | 715 | for (BlockDecl::param_const_iterator i = BD->param_begin(), |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 716 | e = BD->param_end(); i != e; ++i) |
Mike Stump | 1905061 | 2009-02-17 23:25:52 +0000 | [diff] [blame] | 717 | Args.push_back(std::make_pair(*i, (*i)->getType())); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 718 | |
| 719 | const CGFunctionInfo &FI = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame^] | 720 | CGM.getTypes().getFunctionInfo(ResultType, Args, EInfo); |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 721 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 722 | CodeGenTypes &Types = CGM.getTypes(); |
Fariborz Jahanian | 140fb26 | 2009-04-11 17:55:15 +0000 | [diff] [blame] | 723 | const llvm::FunctionType *LTy = Types.GetFunctionType(FI, IsVariadic); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 724 | |
| 725 | llvm::Function *Fn = |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 726 | llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 727 | llvm::Twine("__") + Info.Name + "_block_invoke_", |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 728 | &CGM.getModule()); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 729 | |
Daniel Dunbar | 0e4f40e | 2009-04-17 00:48:04 +0000 | [diff] [blame] | 730 | CGM.SetInternalFunctionAttributes(BD, Fn, FI); |
| 731 | |
Chris Lattner | 4863db4 | 2009-04-23 07:18:56 +0000 | [diff] [blame] | 732 | StartFunction(BD, ResultType, Fn, Args, |
Chris Lattner | 161d36d | 2009-02-28 19:01:03 +0000 | [diff] [blame] | 733 | BExpr->getBody()->getLocEnd()); |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 734 | |
Chris Lattner | 4863db4 | 2009-04-23 07:18:56 +0000 | [diff] [blame] | 735 | CurFuncDecl = OuterFuncDecl; |
Chris Lattner | b5437d2 | 2009-04-23 05:30:27 +0000 | [diff] [blame] | 736 | CurCodeDecl = BD; |
Mike Stump | b289b3f | 2009-10-01 22:29:41 +0000 | [diff] [blame] | 737 | |
| 738 | // Save a spot to insert the debug information for all the BlockDeclRefDecls. |
| 739 | llvm::BasicBlock *entry = Builder.GetInsertBlock(); |
| 740 | llvm::BasicBlock::iterator entry_ptr = Builder.GetInsertPoint(); |
| 741 | --entry_ptr; |
| 742 | |
Chris Lattner | 161d36d | 2009-02-28 19:01:03 +0000 | [diff] [blame] | 743 | EmitStmt(BExpr->getBody()); |
Mike Stump | b289b3f | 2009-10-01 22:29:41 +0000 | [diff] [blame] | 744 | |
Mike Stump | de8c5c7 | 2009-10-01 00:27:30 +0000 | [diff] [blame] | 745 | // Remember where we were... |
| 746 | llvm::BasicBlock *resume = Builder.GetInsertBlock(); |
Mike Stump | b289b3f | 2009-10-01 22:29:41 +0000 | [diff] [blame] | 747 | |
Mike Stump | de8c5c7 | 2009-10-01 00:27:30 +0000 | [diff] [blame] | 748 | // Go back to the entry. |
Mike Stump | b289b3f | 2009-10-01 22:29:41 +0000 | [diff] [blame] | 749 | ++entry_ptr; |
| 750 | Builder.SetInsertPoint(entry, entry_ptr); |
| 751 | |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 752 | if (CGDebugInfo *DI = getDebugInfo()) { |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 753 | // Emit debug information for all the BlockDeclRefDecls. |
Chris Lattner | 14b1a36 | 2010-01-25 03:29:35 +0000 | [diff] [blame] | 754 | for (unsigned i = 0, e = BlockDeclRefDecls.size(); i != e; ++i) { |
| 755 | if (const BlockDeclRefExpr *BDRE = |
| 756 | dyn_cast<BlockDeclRefExpr>(BlockDeclRefDecls[i])) { |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 757 | const ValueDecl *D = BDRE->getDecl(); |
| 758 | DI->setLocation(D->getLocation()); |
| 759 | DI->EmitDeclareOfBlockDeclRefVariable(BDRE, |
| 760 | LocalDeclMap[getBlockStructDecl()], |
| 761 | Builder, this); |
| 762 | } |
| 763 | } |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 764 | } |
Mike Stump | de8c5c7 | 2009-10-01 00:27:30 +0000 | [diff] [blame] | 765 | // And resume where we left off. |
| 766 | if (resume == 0) |
| 767 | Builder.ClearInsertionPoint(); |
| 768 | else |
| 769 | Builder.SetInsertPoint(resume); |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 770 | |
Chris Lattner | 161d36d | 2009-02-28 19:01:03 +0000 | [diff] [blame] | 771 | FinishFunction(cast<CompoundStmt>(BExpr->getBody())->getRBracLoc()); |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 772 | |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 773 | // The runtime needs a minimum alignment of a void *. |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 774 | CharUnits MinAlign = getContext().getTypeAlignInChars(getContext().VoidPtrTy); |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 775 | BlockOffset = CharUnits::fromQuantity( |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 776 | llvm::RoundUpToAlignment(BlockOffset.getQuantity(), |
| 777 | MinAlign.getQuantity())); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 778 | |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 779 | Size = BlockOffset; |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 780 | Align = BlockAlign; |
| 781 | subBlockDeclRefDecls = BlockDeclRefDecls; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 782 | subBlockHasCopyDispose |= BlockHasCopyDispose; |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 783 | return Fn; |
| 784 | } |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 785 | |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 786 | CharUnits BlockFunction::getBlockOffset(const BlockDeclRefExpr *BDRE) { |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 787 | const ValueDecl *D = dyn_cast<ValueDecl>(BDRE->getDecl()); |
| 788 | |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 789 | CharUnits Size = getContext().getTypeSizeInChars(D->getType()); |
Ken Dyck | 8b752f1 | 2010-01-27 17:10:57 +0000 | [diff] [blame] | 790 | CharUnits Align = getContext().getDeclAlign(D); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 791 | |
| 792 | if (BDRE->isByRef()) { |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 793 | Size = getContext().getTypeSizeInChars(getContext().VoidPtrTy); |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 794 | Align = getContext().getTypeAlignInChars(getContext().VoidPtrTy); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 795 | } |
| 796 | |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 797 | assert ((Align.isPositive()) && "alignment must be 1 byte or more"); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 798 | |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 799 | CharUnits OldOffset = BlockOffset; |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 800 | |
| 801 | // Ensure proper alignment, even if it means we have to have a gap |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 802 | BlockOffset = CharUnits::fromQuantity( |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 803 | llvm::RoundUpToAlignment(BlockOffset.getQuantity(), Align.getQuantity())); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 804 | BlockAlign = std::max(Align, BlockAlign); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 805 | |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 806 | CharUnits Pad = BlockOffset - OldOffset; |
| 807 | if (Pad.isPositive()) { |
| 808 | llvm::ArrayType::get(llvm::Type::getInt8Ty(VMContext), Pad.getQuantity()); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 809 | QualType PadTy = getContext().getConstantArrayType(getContext().CharTy, |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 810 | llvm::APInt(32, |
| 811 | Pad.getQuantity()), |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 812 | ArrayType::Normal, 0); |
| 813 | ValueDecl *PadDecl = VarDecl::Create(getContext(), 0, SourceLocation(), |
Argyrios Kyrtzidis | a5d8200 | 2009-08-21 00:31:54 +0000 | [diff] [blame] | 814 | 0, QualType(PadTy), 0, VarDecl::None); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 815 | Expr *E; |
| 816 | E = new (getContext()) DeclRefExpr(PadDecl, PadDecl->getType(), |
Douglas Gregor | 0da76df | 2009-11-23 11:41:28 +0000 | [diff] [blame] | 817 | SourceLocation()); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 818 | BlockDeclRefDecls.push_back(E); |
| 819 | } |
| 820 | BlockDeclRefDecls.push_back(BDRE); |
| 821 | |
| 822 | BlockOffset += Size; |
| 823 | return BlockOffset-Size; |
| 824 | } |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 825 | |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 826 | llvm::Constant *BlockFunction:: |
| 827 | GenerateCopyHelperFunction(bool BlockHasCopyDispose, const llvm::StructType *T, |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 828 | std::vector<HelperInfo> *NoteForHelperp) { |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 829 | QualType R = getContext().VoidTy; |
| 830 | |
| 831 | FunctionArgList Args; |
| 832 | // FIXME: This leaks |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 833 | ImplicitParamDecl *Dst = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 834 | ImplicitParamDecl::Create(getContext(), 0, |
| 835 | SourceLocation(), 0, |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 836 | getContext().getPointerType(getContext().VoidTy)); |
| 837 | Args.push_back(std::make_pair(Dst, Dst->getType())); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 838 | ImplicitParamDecl *Src = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 839 | ImplicitParamDecl::Create(getContext(), 0, |
| 840 | SourceLocation(), 0, |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 841 | getContext().getPointerType(getContext().VoidTy)); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 842 | Args.push_back(std::make_pair(Src, Src->getType())); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 843 | |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 844 | const CGFunctionInfo &FI = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame^] | 845 | CGM.getTypes().getFunctionInfo(R, Args, FunctionType::ExtInfo()); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 846 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 847 | // FIXME: We'd like to put these into a mergable by content, with |
| 848 | // internal linkage. |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 849 | CodeGenTypes &Types = CGM.getTypes(); |
| 850 | const llvm::FunctionType *LTy = Types.GetFunctionType(FI, false); |
| 851 | |
| 852 | llvm::Function *Fn = |
| 853 | llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 854 | "__copy_helper_block_", &CGM.getModule()); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 855 | |
| 856 | IdentifierInfo *II |
| 857 | = &CGM.getContext().Idents.get("__copy_helper_block_"); |
| 858 | |
| 859 | FunctionDecl *FD = FunctionDecl::Create(getContext(), |
| 860 | getContext().getTranslationUnitDecl(), |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 861 | SourceLocation(), II, R, 0, |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 862 | FunctionDecl::Static, false, |
| 863 | true); |
| 864 | CGF.StartFunction(FD, R, Fn, Args, SourceLocation()); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 865 | |
| 866 | llvm::Value *SrcObj = CGF.GetAddrOfLocalVar(Src); |
| 867 | llvm::Type *PtrPtrT; |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 868 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 869 | if (NoteForHelperp) { |
| 870 | std::vector<HelperInfo> &NoteForHelper = *NoteForHelperp; |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 871 | |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 872 | PtrPtrT = llvm::PointerType::get(llvm::PointerType::get(T, 0), 0); |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 873 | SrcObj = Builder.CreateBitCast(SrcObj, PtrPtrT); |
| 874 | SrcObj = Builder.CreateLoad(SrcObj); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 875 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 876 | llvm::Value *DstObj = CGF.GetAddrOfLocalVar(Dst); |
Mike Stump | c2f4c34 | 2009-04-15 22:11:36 +0000 | [diff] [blame] | 877 | llvm::Type *PtrPtrT; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 878 | PtrPtrT = llvm::PointerType::get(llvm::PointerType::get(T, 0), 0); |
Mike Stump | c2f4c34 | 2009-04-15 22:11:36 +0000 | [diff] [blame] | 879 | DstObj = Builder.CreateBitCast(DstObj, PtrPtrT); |
| 880 | DstObj = Builder.CreateLoad(DstObj); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 881 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 882 | for (unsigned i=0; i < NoteForHelper.size(); ++i) { |
| 883 | int flag = NoteForHelper[i].flag; |
| 884 | int index = NoteForHelper[i].index; |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 885 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 886 | if ((NoteForHelper[i].flag & BLOCK_FIELD_IS_BYREF) |
| 887 | || NoteForHelper[i].RequiresCopying) { |
| 888 | llvm::Value *Srcv = SrcObj; |
| 889 | Srcv = Builder.CreateStructGEP(Srcv, index); |
| 890 | Srcv = Builder.CreateBitCast(Srcv, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 891 | llvm::PointerType::get(PtrToInt8Ty, 0)); |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 892 | Srcv = Builder.CreateLoad(Srcv); |
| 893 | |
| 894 | llvm::Value *Dstv = Builder.CreateStructGEP(DstObj, index); |
| 895 | Dstv = Builder.CreateBitCast(Dstv, PtrToInt8Ty); |
| 896 | |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 897 | llvm::Value *N = llvm::ConstantInt::get( |
| 898 | llvm::Type::getInt32Ty(T->getContext()), flag); |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 899 | llvm::Value *F = getBlockObjectAssign(); |
| 900 | Builder.CreateCall3(F, Dstv, Srcv, N); |
| 901 | } |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 902 | } |
| 903 | } |
| 904 | |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 905 | CGF.FinishFunction(); |
| 906 | |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 907 | return llvm::ConstantExpr::getBitCast(Fn, PtrToInt8Ty); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 908 | } |
| 909 | |
Mike Stump | cf62d39 | 2009-03-06 18:42:23 +0000 | [diff] [blame] | 910 | llvm::Constant *BlockFunction:: |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 911 | GenerateDestroyHelperFunction(bool BlockHasCopyDispose, |
| 912 | const llvm::StructType* T, |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 913 | std::vector<HelperInfo> *NoteForHelperp) { |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 914 | QualType R = getContext().VoidTy; |
| 915 | |
| 916 | FunctionArgList Args; |
| 917 | // FIXME: This leaks |
| 918 | ImplicitParamDecl *Src = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 919 | ImplicitParamDecl::Create(getContext(), 0, |
| 920 | SourceLocation(), 0, |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 921 | getContext().getPointerType(getContext().VoidTy)); |
| 922 | |
| 923 | Args.push_back(std::make_pair(Src, Src->getType())); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 924 | |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 925 | const CGFunctionInfo &FI = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame^] | 926 | CGM.getTypes().getFunctionInfo(R, Args, FunctionType::ExtInfo()); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 927 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 928 | // FIXME: We'd like to put these into a mergable by content, with |
| 929 | // internal linkage. |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 930 | CodeGenTypes &Types = CGM.getTypes(); |
| 931 | const llvm::FunctionType *LTy = Types.GetFunctionType(FI, false); |
| 932 | |
| 933 | llvm::Function *Fn = |
| 934 | llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 935 | "__destroy_helper_block_", &CGM.getModule()); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 936 | |
| 937 | IdentifierInfo *II |
| 938 | = &CGM.getContext().Idents.get("__destroy_helper_block_"); |
| 939 | |
| 940 | FunctionDecl *FD = FunctionDecl::Create(getContext(), |
| 941 | getContext().getTranslationUnitDecl(), |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 942 | SourceLocation(), II, R, 0, |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 943 | FunctionDecl::Static, false, |
| 944 | true); |
| 945 | CGF.StartFunction(FD, R, Fn, Args, SourceLocation()); |
Mike Stump | 1edf6b6 | 2009-03-07 02:53:18 +0000 | [diff] [blame] | 946 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 947 | if (NoteForHelperp) { |
| 948 | std::vector<HelperInfo> &NoteForHelper = *NoteForHelperp; |
Mike Stump | 1edf6b6 | 2009-03-07 02:53:18 +0000 | [diff] [blame] | 949 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 950 | llvm::Value *SrcObj = CGF.GetAddrOfLocalVar(Src); |
| 951 | llvm::Type *PtrPtrT; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 952 | PtrPtrT = llvm::PointerType::get(llvm::PointerType::get(T, 0), 0); |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 953 | SrcObj = Builder.CreateBitCast(SrcObj, PtrPtrT); |
| 954 | SrcObj = Builder.CreateLoad(SrcObj); |
Mike Stump | 1edf6b6 | 2009-03-07 02:53:18 +0000 | [diff] [blame] | 955 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 956 | for (unsigned i=0; i < NoteForHelper.size(); ++i) { |
| 957 | int flag = NoteForHelper[i].flag; |
| 958 | int index = NoteForHelper[i].index; |
Mike Stump | 1edf6b6 | 2009-03-07 02:53:18 +0000 | [diff] [blame] | 959 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 960 | if ((NoteForHelper[i].flag & BLOCK_FIELD_IS_BYREF) |
| 961 | || NoteForHelper[i].RequiresCopying) { |
| 962 | llvm::Value *Srcv = SrcObj; |
| 963 | Srcv = Builder.CreateStructGEP(Srcv, index); |
| 964 | Srcv = Builder.CreateBitCast(Srcv, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 965 | llvm::PointerType::get(PtrToInt8Ty, 0)); |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 966 | Srcv = Builder.CreateLoad(Srcv); |
| 967 | |
| 968 | BuildBlockRelease(Srcv, flag); |
| 969 | } |
Mike Stump | 1edf6b6 | 2009-03-07 02:53:18 +0000 | [diff] [blame] | 970 | } |
| 971 | } |
| 972 | |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 973 | CGF.FinishFunction(); |
| 974 | |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 975 | return llvm::ConstantExpr::getBitCast(Fn, PtrToInt8Ty); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 976 | } |
| 977 | |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 978 | llvm::Constant *BlockFunction::BuildCopyHelper(const llvm::StructType *T, |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 979 | std::vector<HelperInfo> *NoteForHelper) { |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 980 | return CodeGenFunction(CGM).GenerateCopyHelperFunction(BlockHasCopyDispose, |
| 981 | T, NoteForHelper); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 982 | } |
| 983 | |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 984 | llvm::Constant *BlockFunction::BuildDestroyHelper(const llvm::StructType *T, |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 985 | std::vector<HelperInfo> *NoteForHelperp) { |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 986 | return CodeGenFunction(CGM).GenerateDestroyHelperFunction(BlockHasCopyDispose, |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 987 | T, NoteForHelperp); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 988 | } |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 989 | |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 990 | llvm::Constant *BlockFunction:: |
| 991 | GeneratebyrefCopyHelperFunction(const llvm::Type *T, int flag) { |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 992 | QualType R = getContext().VoidTy; |
| 993 | |
| 994 | FunctionArgList Args; |
| 995 | // FIXME: This leaks |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 996 | ImplicitParamDecl *Dst = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 997 | ImplicitParamDecl::Create(getContext(), 0, |
| 998 | SourceLocation(), 0, |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 999 | getContext().getPointerType(getContext().VoidTy)); |
| 1000 | Args.push_back(std::make_pair(Dst, Dst->getType())); |
| 1001 | |
| 1002 | // FIXME: This leaks |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1003 | ImplicitParamDecl *Src = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 1004 | ImplicitParamDecl::Create(getContext(), 0, |
| 1005 | SourceLocation(), 0, |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1006 | getContext().getPointerType(getContext().VoidTy)); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1007 | Args.push_back(std::make_pair(Src, Src->getType())); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1008 | |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1009 | const CGFunctionInfo &FI = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame^] | 1010 | CGM.getTypes().getFunctionInfo(R, Args, FunctionType::ExtInfo()); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1011 | |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1012 | CodeGenTypes &Types = CGM.getTypes(); |
| 1013 | const llvm::FunctionType *LTy = Types.GetFunctionType(FI, false); |
| 1014 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1015 | // FIXME: We'd like to put these into a mergable by content, with |
| 1016 | // internal linkage. |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1017 | llvm::Function *Fn = |
| 1018 | llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 1019 | "__Block_byref_id_object_copy_", &CGM.getModule()); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1020 | |
| 1021 | IdentifierInfo *II |
| 1022 | = &CGM.getContext().Idents.get("__Block_byref_id_object_copy_"); |
| 1023 | |
| 1024 | FunctionDecl *FD = FunctionDecl::Create(getContext(), |
| 1025 | getContext().getTranslationUnitDecl(), |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 1026 | SourceLocation(), II, R, 0, |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1027 | FunctionDecl::Static, false, |
| 1028 | true); |
| 1029 | CGF.StartFunction(FD, R, Fn, Args, SourceLocation()); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1030 | |
| 1031 | // dst->x |
| 1032 | llvm::Value *V = CGF.GetAddrOfLocalVar(Dst); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1033 | V = Builder.CreateBitCast(V, llvm::PointerType::get(T, 0)); |
Mike Stump | c2f4c34 | 2009-04-15 22:11:36 +0000 | [diff] [blame] | 1034 | V = Builder.CreateLoad(V); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1035 | V = Builder.CreateStructGEP(V, 6, "x"); |
| 1036 | llvm::Value *DstObj = Builder.CreateBitCast(V, PtrToInt8Ty); |
| 1037 | |
| 1038 | // src->x |
| 1039 | V = CGF.GetAddrOfLocalVar(Src); |
| 1040 | V = Builder.CreateLoad(V); |
| 1041 | V = Builder.CreateBitCast(V, T); |
| 1042 | V = Builder.CreateStructGEP(V, 6, "x"); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1043 | V = Builder.CreateBitCast(V, llvm::PointerType::get(PtrToInt8Ty, 0)); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1044 | llvm::Value *SrcObj = Builder.CreateLoad(V); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1045 | |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1046 | flag |= BLOCK_BYREF_CALLER; |
| 1047 | |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1048 | llvm::Value *N = llvm::ConstantInt::get( |
| 1049 | llvm::Type::getInt32Ty(T->getContext()), flag); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1050 | llvm::Value *F = getBlockObjectAssign(); |
| 1051 | Builder.CreateCall3(F, DstObj, SrcObj, N); |
| 1052 | |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1053 | CGF.FinishFunction(); |
| 1054 | |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1055 | return llvm::ConstantExpr::getBitCast(Fn, PtrToInt8Ty); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1056 | } |
| 1057 | |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1058 | llvm::Constant * |
| 1059 | BlockFunction::GeneratebyrefDestroyHelperFunction(const llvm::Type *T, |
| 1060 | int flag) { |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1061 | QualType R = getContext().VoidTy; |
| 1062 | |
| 1063 | FunctionArgList Args; |
| 1064 | // FIXME: This leaks |
| 1065 | ImplicitParamDecl *Src = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 1066 | ImplicitParamDecl::Create(getContext(), 0, |
| 1067 | SourceLocation(), 0, |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1068 | getContext().getPointerType(getContext().VoidTy)); |
| 1069 | |
| 1070 | Args.push_back(std::make_pair(Src, Src->getType())); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1071 | |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1072 | const CGFunctionInfo &FI = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame^] | 1073 | CGM.getTypes().getFunctionInfo(R, Args, FunctionType::ExtInfo()); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1074 | |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1075 | CodeGenTypes &Types = CGM.getTypes(); |
| 1076 | const llvm::FunctionType *LTy = Types.GetFunctionType(FI, false); |
| 1077 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1078 | // FIXME: We'd like to put these into a mergable by content, with |
| 1079 | // internal linkage. |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1080 | llvm::Function *Fn = |
| 1081 | llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 1082 | "__Block_byref_id_object_dispose_", |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1083 | &CGM.getModule()); |
| 1084 | |
| 1085 | IdentifierInfo *II |
| 1086 | = &CGM.getContext().Idents.get("__Block_byref_id_object_dispose_"); |
| 1087 | |
| 1088 | FunctionDecl *FD = FunctionDecl::Create(getContext(), |
| 1089 | getContext().getTranslationUnitDecl(), |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 1090 | SourceLocation(), II, R, 0, |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1091 | FunctionDecl::Static, false, |
| 1092 | true); |
| 1093 | CGF.StartFunction(FD, R, Fn, Args, SourceLocation()); |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1094 | |
| 1095 | llvm::Value *V = CGF.GetAddrOfLocalVar(Src); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1096 | V = Builder.CreateBitCast(V, llvm::PointerType::get(T, 0)); |
Mike Stump | c2f4c34 | 2009-04-15 22:11:36 +0000 | [diff] [blame] | 1097 | V = Builder.CreateLoad(V); |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1098 | V = Builder.CreateStructGEP(V, 6, "x"); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1099 | V = Builder.CreateBitCast(V, llvm::PointerType::get(PtrToInt8Ty, 0)); |
Mike Stump | c2f4c34 | 2009-04-15 22:11:36 +0000 | [diff] [blame] | 1100 | V = Builder.CreateLoad(V); |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1101 | |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1102 | flag |= BLOCK_BYREF_CALLER; |
| 1103 | BuildBlockRelease(V, flag); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1104 | CGF.FinishFunction(); |
| 1105 | |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1106 | return llvm::ConstantExpr::getBitCast(Fn, PtrToInt8Ty); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1107 | } |
| 1108 | |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1109 | llvm::Constant *BlockFunction::BuildbyrefCopyHelper(const llvm::Type *T, |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1110 | int Flag, unsigned Align) { |
| 1111 | // All alignments below that of pointer alignment collapse down to just |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1112 | // pointer alignment, as we always have at least that much alignment to begin |
| 1113 | // with. |
| 1114 | Align /= unsigned(CGF.Target.getPointerAlign(0)/8); |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1115 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1116 | // As an optimization, we only generate a single function of each kind we |
| 1117 | // might need. We need a different one for each alignment and for each |
| 1118 | // setting of flags. We mix Align and flag to get the kind. |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1119 | uint64_t Kind = (uint64_t)Align*BLOCK_BYREF_CURRENT_MAX + Flag; |
| 1120 | llvm::Constant *&Entry = CGM.AssignCache[Kind]; |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1121 | if (Entry) |
| 1122 | return Entry; |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1123 | return Entry = CodeGenFunction(CGM).GeneratebyrefCopyHelperFunction(T, Flag); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1124 | } |
| 1125 | |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1126 | llvm::Constant *BlockFunction::BuildbyrefDestroyHelper(const llvm::Type *T, |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1127 | int Flag, |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1128 | unsigned Align) { |
| 1129 | // All alignments below that of pointer alignment collpase down to just |
| 1130 | // pointer alignment, as we always have at least that much alignment to begin |
| 1131 | // with. |
| 1132 | Align /= unsigned(CGF.Target.getPointerAlign(0)/8); |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1133 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1134 | // As an optimization, we only generate a single function of each kind we |
| 1135 | // might need. We need a different one for each alignment and for each |
| 1136 | // setting of flags. We mix Align and flag to get the kind. |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1137 | uint64_t Kind = (uint64_t)Align*BLOCK_BYREF_CURRENT_MAX + Flag; |
| 1138 | llvm::Constant *&Entry = CGM.DestroyCache[Kind]; |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1139 | if (Entry) |
| 1140 | return Entry; |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1141 | return Entry=CodeGenFunction(CGM).GeneratebyrefDestroyHelperFunction(T, Flag); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1142 | } |
| 1143 | |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1144 | llvm::Value *BlockFunction::getBlockObjectDispose() { |
| 1145 | if (CGM.BlockObjectDispose == 0) { |
| 1146 | const llvm::FunctionType *FTy; |
| 1147 | std::vector<const llvm::Type*> ArgTys; |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1148 | const llvm::Type *ResultType = llvm::Type::getVoidTy(VMContext); |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1149 | ArgTys.push_back(PtrToInt8Ty); |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1150 | ArgTys.push_back(llvm::Type::getInt32Ty(VMContext)); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1151 | FTy = llvm::FunctionType::get(ResultType, ArgTys, false); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 1152 | CGM.BlockObjectDispose |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1153 | = CGM.CreateRuntimeFunction(FTy, "_Block_object_dispose"); |
| 1154 | } |
| 1155 | return CGM.BlockObjectDispose; |
| 1156 | } |
| 1157 | |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1158 | llvm::Value *BlockFunction::getBlockObjectAssign() { |
| 1159 | if (CGM.BlockObjectAssign == 0) { |
| 1160 | const llvm::FunctionType *FTy; |
| 1161 | std::vector<const llvm::Type*> ArgTys; |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1162 | const llvm::Type *ResultType = llvm::Type::getVoidTy(VMContext); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1163 | ArgTys.push_back(PtrToInt8Ty); |
| 1164 | ArgTys.push_back(PtrToInt8Ty); |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1165 | ArgTys.push_back(llvm::Type::getInt32Ty(VMContext)); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1166 | FTy = llvm::FunctionType::get(ResultType, ArgTys, false); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1167 | CGM.BlockObjectAssign |
| 1168 | = CGM.CreateRuntimeFunction(FTy, "_Block_object_assign"); |
| 1169 | } |
| 1170 | return CGM.BlockObjectAssign; |
| 1171 | } |
| 1172 | |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1173 | void BlockFunction::BuildBlockRelease(llvm::Value *V, int flag) { |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1174 | llvm::Value *F = getBlockObjectDispose(); |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1175 | llvm::Value *N; |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1176 | V = Builder.CreateBitCast(V, PtrToInt8Ty); |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1177 | N = llvm::ConstantInt::get(llvm::Type::getInt32Ty(V->getContext()), flag); |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1178 | Builder.CreateCall2(F, V, N); |
| 1179 | } |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 1180 | |
| 1181 | ASTContext &BlockFunction::getContext() const { return CGM.getContext(); } |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 1182 | |
| 1183 | BlockFunction::BlockFunction(CodeGenModule &cgm, CodeGenFunction &cgf, |
| 1184 | CGBuilderTy &B) |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 1185 | : CGM(cgm), CGF(cgf), VMContext(cgm.getLLVMContext()), Builder(B) { |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1186 | PtrToInt8Ty = llvm::PointerType::getUnqual( |
| 1187 | llvm::Type::getInt8Ty(VMContext)); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 1188 | |
| 1189 | BlockHasCopyDispose = false; |
| 1190 | } |