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" |
Benjamin Kramer | 6876fe6 | 2010-03-31 15:04:05 +0000 | [diff] [blame] | 20 | #include "llvm/ADT/SmallSet.h" |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 21 | #include "llvm/Target/TargetData.h" |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 22 | #include <algorithm> |
Torok Edwin | f42e4a6 | 2009-08-24 13:25:12 +0000 | [diff] [blame] | 23 | |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 24 | using namespace clang; |
| 25 | using namespace CodeGen; |
| 26 | |
Mike Stump | cf62d39 | 2009-03-06 18:42:23 +0000 | [diff] [blame] | 27 | llvm::Constant *CodeGenFunction:: |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 28 | BuildDescriptorBlockDecl(const BlockExpr *BE, bool BlockHasCopyDispose, CharUnits Size, |
Mike Stump | a803b0e | 2009-03-25 17:58:24 +0000 | [diff] [blame] | 29 | const llvm::StructType* Ty, |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 30 | std::vector<HelperInfo> *NoteForHelper) { |
Mike Stump | 56129b1 | 2009-02-13 16:55:51 +0000 | [diff] [blame] | 31 | const llvm::Type *UnsignedLongTy |
| 32 | = CGM.getTypes().ConvertType(getContext().UnsignedLongTy); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 33 | llvm::Constant *C; |
| 34 | std::vector<llvm::Constant*> Elts; |
| 35 | |
| 36 | // reserved |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 37 | C = llvm::ConstantInt::get(UnsignedLongTy, 0); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 38 | Elts.push_back(C); |
| 39 | |
| 40 | // Size |
Mike Stump | d684000 | 2009-02-21 20:07:44 +0000 | [diff] [blame] | 41 | // FIXME: What is the right way to say this doesn't fit? We should give |
| 42 | // a user diagnostic in that case. Better fix would be to change the |
| 43 | // API to size_t. |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 44 | C = llvm::ConstantInt::get(UnsignedLongTy, Size.getQuantity()); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 45 | Elts.push_back(C); |
| 46 | |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 47 | // optional copy/dispose helpers |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 48 | if (BlockHasCopyDispose) { |
| 49 | // copy_func_helper_decl |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 50 | Elts.push_back(BuildCopyHelper(Ty, NoteForHelper)); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 51 | |
| 52 | // destroy_func_decl |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 53 | Elts.push_back(BuildDestroyHelper(Ty, NoteForHelper)); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 54 | } |
| 55 | |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 56 | // Signature. non-optional ObjC-style method descriptor @encode sequence |
| 57 | std::string BlockTypeEncoding; |
| 58 | CGM.getContext().getObjCEncodingForBlock(BE, BlockTypeEncoding); |
| 59 | |
| 60 | Elts.push_back(llvm::ConstantExpr::getBitCast( |
| 61 | CGM.GetAddrOfConstantCString(BlockTypeEncoding), PtrToInt8Ty)); |
| 62 | |
| 63 | // Layout. |
| 64 | C = llvm::ConstantInt::get(UnsignedLongTy, 0); |
| 65 | Elts.push_back(C); |
| 66 | |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 67 | C = llvm::ConstantStruct::get(VMContext, Elts, false); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 68 | |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 69 | C = new llvm::GlobalVariable(CGM.getModule(), C->getType(), true, |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 70 | llvm::GlobalValue::InternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 71 | C, "__block_descriptor_tmp"); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 72 | return C; |
| 73 | } |
| 74 | |
Mike Stump | 2a99814 | 2009-03-04 18:17:45 +0000 | [diff] [blame] | 75 | llvm::Constant *BlockModule::getNSConcreteGlobalBlock() { |
Chris Lattner | e2f79b6 | 2009-05-13 02:50:56 +0000 | [diff] [blame] | 76 | if (NSConcreteGlobalBlock == 0) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 77 | NSConcreteGlobalBlock = CGM.CreateRuntimeVariable(PtrToInt8Ty, |
Chris Lattner | e2f79b6 | 2009-05-13 02:50:56 +0000 | [diff] [blame] | 78 | "_NSConcreteGlobalBlock"); |
Mike Stump | f99f1d0 | 2009-02-13 17:23:42 +0000 | [diff] [blame] | 79 | return NSConcreteGlobalBlock; |
| 80 | } |
| 81 | |
Mike Stump | 2a99814 | 2009-03-04 18:17:45 +0000 | [diff] [blame] | 82 | llvm::Constant *BlockModule::getNSConcreteStackBlock() { |
Chris Lattner | e2f79b6 | 2009-05-13 02:50:56 +0000 | [diff] [blame] | 83 | if (NSConcreteStackBlock == 0) |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 84 | NSConcreteStackBlock = CGM.CreateRuntimeVariable(PtrToInt8Ty, |
Chris Lattner | e2f79b6 | 2009-05-13 02:50:56 +0000 | [diff] [blame] | 85 | "_NSConcreteStackBlock"); |
Mike Stump | 59c5b11 | 2009-02-13 19:29:27 +0000 | [diff] [blame] | 86 | return NSConcreteStackBlock; |
| 87 | } |
| 88 | |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 89 | static void CollectBlockDeclRefInfo( |
| 90 | const Stmt *S, CodeGenFunction::BlockInfo &Info, |
| 91 | llvm::SmallSet<const DeclContext *, 16> &InnerContexts) { |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 92 | for (Stmt::const_child_iterator I = S->child_begin(), E = S->child_end(); |
| 93 | I != E; ++I) |
Daniel Dunbar | 82573ee | 2009-03-02 07:00:57 +0000 | [diff] [blame] | 94 | if (*I) |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 95 | CollectBlockDeclRefInfo(*I, Info, InnerContexts); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 96 | |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 97 | // We want to ensure we walk down into block literals so we can find |
| 98 | // all nested BlockDeclRefExprs. |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 99 | if (const BlockExpr *BE = dyn_cast<BlockExpr>(S)) { |
| 100 | InnerContexts.insert(cast<DeclContext>(BE->getBlockDecl())); |
| 101 | CollectBlockDeclRefInfo(BE->getBody(), Info, InnerContexts); |
| 102 | } |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 103 | |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 104 | if (const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(S)) { |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 105 | // FIXME: Handle enums. |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 106 | if (isa<FunctionDecl>(BDRE->getDecl())) |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 107 | return; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 108 | |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 109 | // Only Decls that escape are added. |
| 110 | if (!InnerContexts.count(BDRE->getDecl()->getDeclContext())) |
| 111 | Info.DeclRefs.push_back(BDRE); |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 112 | } |
| 113 | } |
| 114 | |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 115 | /// CanBlockBeGlobal - Given a BlockInfo struct, determines if a block can be |
| 116 | /// declared as a global variable instead of on the stack. |
Chris Lattner | e2f79b6 | 2009-05-13 02:50:56 +0000 | [diff] [blame] | 117 | static bool CanBlockBeGlobal(const CodeGenFunction::BlockInfo &Info) { |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 118 | return Info.DeclRefs.empty(); |
| 119 | } |
| 120 | |
| 121 | /// AllocateAllBlockDeclRefs - Preallocate all nested BlockDeclRefExprs to |
| 122 | /// ensure we can generate the debug information for the parameter for the block |
| 123 | /// invoke function. |
| 124 | static void AllocateAllBlockDeclRefs(const CodeGenFunction::BlockInfo &Info, |
| 125 | CodeGenFunction *CGF) { |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 126 | // FIXME: Also always forward the this pointer in C++ as well. |
| 127 | |
| 128 | for (size_t i = 0; i < Info.DeclRefs.size(); ++i) |
| 129 | CGF->AllocateBlockDecl(Info.DeclRefs[i]); |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 130 | } |
| 131 | |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 132 | // FIXME: Push most into CGM, passing down a few bits, like current function |
| 133 | // name. |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 134 | llvm::Value *CodeGenFunction::BuildBlockLiteralTmp(const BlockExpr *BE) { |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 135 | |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 136 | std::string Name = CurFn->getName(); |
| 137 | CodeGenFunction::BlockInfo Info(0, Name.c_str()); |
Mike Stump | 38e1627 | 2009-10-21 22:01:24 +0000 | [diff] [blame] | 138 | llvm::SmallSet<const DeclContext *, 16> InnerContexts; |
| 139 | InnerContexts.insert(BE->getBlockDecl()); |
| 140 | CollectBlockDeclRefInfo(BE->getBody(), Info, InnerContexts); |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 141 | |
| 142 | // Check if the block can be global. |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 143 | // FIXME: This test doesn't work for nested blocks yet. Longer term, I'd like |
| 144 | // to just have one code path. We should move this function into CGM and pass |
| 145 | // CGF, then we can just check to see if CGF is 0. |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 146 | if (0 && CanBlockBeGlobal(Info)) |
Anders Carlsson | 4de9fce | 2009-03-01 01:09:12 +0000 | [diff] [blame] | 147 | return CGM.GetAddrOfGlobalBlock(BE, Name.c_str()); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 148 | |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 149 | size_t BlockFields = 5; |
| 150 | |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 151 | std::vector<llvm::Constant*> Elts(BlockFields); |
| 152 | |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 153 | llvm::Constant *C; |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 154 | llvm::Value *V; |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 155 | |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 156 | { |
| 157 | // C = BuildBlockStructInitlist(); |
Blaine Garst | a36e223 | 2010-03-05 01:29:59 +0000 | [diff] [blame] | 158 | unsigned int flags = BLOCK_HAS_SIGNATURE; |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 159 | |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 160 | // We run this first so that we set BlockHasCopyDispose from the entire |
| 161 | // block literal. |
| 162 | // __invoke |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 163 | CharUnits subBlockSize; |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 164 | CharUnits subBlockAlign; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 165 | llvm::SmallVector<const Expr *, 8> subBlockDeclRefDecls; |
Mike Stump | a803b0e | 2009-03-25 17:58:24 +0000 | [diff] [blame] | 166 | bool subBlockHasCopyDispose = false; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 167 | llvm::Function *Fn |
Mike Stump | bb30419 | 2009-09-24 22:31:14 +0000 | [diff] [blame] | 168 | = CodeGenFunction(CGM).GenerateBlockFunction(BE, Info, CurFuncDecl, |
| 169 | LocalDeclMap, |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 170 | subBlockSize, |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 171 | subBlockAlign, |
| 172 | subBlockDeclRefDecls, |
Mike Stump | a803b0e | 2009-03-25 17:58:24 +0000 | [diff] [blame] | 173 | subBlockHasCopyDispose); |
| 174 | BlockHasCopyDispose |= subBlockHasCopyDispose; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 175 | Elts[3] = Fn; |
| 176 | |
Mike Stump | f5408fe | 2009-05-16 07:57:57 +0000 | [diff] [blame] | 177 | // FIXME: Don't use BlockHasCopyDispose, it is set more often then |
| 178 | // necessary, for example: { ^{ __block int i; ^{ i = 1; }(); }(); } |
Mike Stump | a803b0e | 2009-03-25 17:58:24 +0000 | [diff] [blame] | 179 | if (subBlockHasCopyDispose) |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 180 | flags |= BLOCK_HAS_COPY_DISPOSE; |
| 181 | |
Mike Stump | 7d6dc4f | 2009-02-13 20:17:16 +0000 | [diff] [blame] | 182 | // __isa |
Mike Stump | 59c5b11 | 2009-02-13 19:29:27 +0000 | [diff] [blame] | 183 | C = CGM.getNSConcreteStackBlock(); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 184 | C = llvm::ConstantExpr::getBitCast(C, PtrToInt8Ty); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 185 | Elts[0] = C; |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 186 | |
| 187 | // __flags |
Blaine Garst | a36e223 | 2010-03-05 01:29:59 +0000 | [diff] [blame] | 188 | { |
| 189 | QualType BPT = BE->getType(); |
| 190 | const FunctionType *ftype = BPT->getPointeeType()->getAs<FunctionType>(); |
| 191 | QualType ResultType = ftype->getResultType(); |
| 192 | |
| 193 | CallArgList Args; |
| 194 | CodeGenTypes &Types = CGM.getTypes(); |
| 195 | const CGFunctionInfo &FnInfo = Types.getFunctionInfo(ResultType, Args, |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 196 | FunctionType::ExtInfo()); |
Blaine Garst | a36e223 | 2010-03-05 01:29:59 +0000 | [diff] [blame] | 197 | if (CGM.ReturnTypeUsesSret(FnInfo)) |
| 198 | flags |= BLOCK_USE_STRET; |
| 199 | } |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 200 | const llvm::IntegerType *IntTy = cast<llvm::IntegerType>( |
| 201 | CGM.getTypes().ConvertType(CGM.getContext().IntTy)); |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 202 | C = llvm::ConstantInt::get(IntTy, flags); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 203 | Elts[1] = C; |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 204 | |
| 205 | // __reserved |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 206 | C = llvm::ConstantInt::get(IntTy, 0); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 207 | Elts[2] = C; |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 208 | |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 209 | if (subBlockDeclRefDecls.size() == 0) { |
Mike Stump | cf62d39 | 2009-03-06 18:42:23 +0000 | [diff] [blame] | 210 | // __descriptor |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 211 | Elts[4] = BuildDescriptorBlockDecl(BE, subBlockHasCopyDispose, subBlockSize, |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 212 | 0, 0); |
Mike Stump | cf62d39 | 2009-03-06 18:42:23 +0000 | [diff] [blame] | 213 | |
Mike Stump | 5570cfe | 2009-03-01 20:07:53 +0000 | [diff] [blame] | 214 | // Optimize to being a global block. |
| 215 | Elts[0] = CGM.getNSConcreteGlobalBlock(); |
Blaine Garst | a36e223 | 2010-03-05 01:29:59 +0000 | [diff] [blame] | 216 | |
Owen Anderson | 4a28d5d | 2009-07-24 23:12:58 +0000 | [diff] [blame] | 217 | Elts[1] = llvm::ConstantInt::get(IntTy, flags|BLOCK_IS_GLOBAL); |
Mike Stump | 5570cfe | 2009-03-01 20:07:53 +0000 | [diff] [blame] | 218 | |
Nick Lewycky | 0d36dd2 | 2009-09-19 20:00:52 +0000 | [diff] [blame] | 219 | C = llvm::ConstantStruct::get(VMContext, Elts, false); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 220 | |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 221 | C = new llvm::GlobalVariable(CGM.getModule(), C->getType(), true, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 222 | llvm::GlobalValue::InternalLinkage, C, |
| 223 | "__block_holder_tmp_" + |
| 224 | llvm::Twine(CGM.getGlobalUniqueCount())); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 225 | QualType BPT = BE->getType(); |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 226 | C = llvm::ConstantExpr::getBitCast(C, ConvertType(BPT)); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 227 | return C; |
| 228 | } |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 229 | |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 230 | std::vector<const llvm::Type *> Types(BlockFields+subBlockDeclRefDecls.size()); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 231 | for (int i=0; i<4; ++i) |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 232 | Types[i] = Elts[i]->getType(); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 233 | Types[4] = PtrToInt8Ty; |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 234 | |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 235 | for (unsigned i=0; i < subBlockDeclRefDecls.size(); ++i) { |
| 236 | const Expr *E = subBlockDeclRefDecls[i]; |
| 237 | const BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); |
| 238 | QualType Ty = E->getType(); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 239 | if (BDRE && BDRE->isByRef()) { |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 240 | Types[i+BlockFields] = llvm::PointerType::get(BuildByRefType(BDRE->getDecl()), 0); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 241 | } else |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 242 | Types[i+BlockFields] = ConvertType(Ty); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 243 | } |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 244 | |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 245 | llvm::StructType *Ty = llvm::StructType::get(VMContext, Types, true); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 246 | |
| 247 | llvm::AllocaInst *A = CreateTempAlloca(Ty); |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 248 | A->setAlignment(subBlockAlign.getQuantity()); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 249 | V = A; |
| 250 | |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 251 | std::vector<HelperInfo> NoteForHelper(subBlockDeclRefDecls.size()); |
| 252 | int helpersize = 0; |
| 253 | |
| 254 | for (unsigned i=0; i<4; ++i) |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 255 | Builder.CreateStore(Elts[i], Builder.CreateStructGEP(V, i, "block.tmp")); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 256 | |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 257 | for (unsigned i=0; i < subBlockDeclRefDecls.size(); ++i) |
| 258 | { |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 259 | // FIXME: Push const down. |
| 260 | Expr *E = const_cast<Expr*>(subBlockDeclRefDecls[i]); |
| 261 | DeclRefExpr *DR; |
| 262 | ValueDecl *VD; |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 263 | |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 264 | DR = dyn_cast<DeclRefExpr>(E); |
| 265 | // Skip padding. |
| 266 | if (DR) continue; |
| 267 | |
| 268 | BlockDeclRefExpr *BDRE = dyn_cast<BlockDeclRefExpr>(E); |
| 269 | VD = BDRE->getDecl(); |
| 270 | |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 271 | llvm::Value* Addr = Builder.CreateStructGEP(V, i+BlockFields, "tmp"); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 272 | NoteForHelper[helpersize].index = i+5; |
Mike Stump | 39605b4 | 2009-09-22 02:12:52 +0000 | [diff] [blame] | 273 | NoteForHelper[helpersize].RequiresCopying |
| 274 | = BlockRequiresCopying(VD->getType()); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 275 | NoteForHelper[helpersize].flag |
Mike Stump | 39605b4 | 2009-09-22 02:12:52 +0000 | [diff] [blame] | 276 | = (VD->getType()->isBlockPointerType() |
| 277 | ? BLOCK_FIELD_IS_BLOCK |
| 278 | : BLOCK_FIELD_IS_OBJECT); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 279 | |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 280 | if (LocalDeclMap[VD]) { |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 281 | if (BDRE->isByRef()) { |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 282 | NoteForHelper[helpersize].flag = BLOCK_FIELD_IS_BYREF | |
Mike Stump | f4bc312 | 2009-03-07 06:04:31 +0000 | [diff] [blame] | 283 | // FIXME: Someone double check this. |
| 284 | (VD->getType().isObjCGCWeak() ? BLOCK_FIELD_IS_WEAK : 0); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 285 | llvm::Value *Loc = LocalDeclMap[VD]; |
| 286 | Loc = Builder.CreateStructGEP(Loc, 1, "forwarding"); |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 287 | Loc = Builder.CreateLoad(Loc); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 288 | Builder.CreateStore(Loc, Addr); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 289 | ++helpersize; |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 290 | continue; |
| 291 | } else |
John McCall | dbd872f | 2009-12-08 09:08:17 +0000 | [diff] [blame] | 292 | E = new (getContext()) DeclRefExpr (VD, |
Douglas Gregor | 0da76df | 2009-11-23 11:41:28 +0000 | [diff] [blame] | 293 | VD->getType(), |
| 294 | SourceLocation()); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 295 | } |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 296 | if (BDRE->isByRef()) { |
Mike Stump | a8b60c9 | 2009-03-21 21:00:35 +0000 | [diff] [blame] | 297 | NoteForHelper[helpersize].flag = BLOCK_FIELD_IS_BYREF | |
| 298 | // FIXME: Someone double check this. |
| 299 | (VD->getType().isObjCGCWeak() ? BLOCK_FIELD_IS_WEAK : 0); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 300 | E = new (getContext()) |
| 301 | UnaryOperator(E, UnaryOperator::AddrOf, |
| 302 | getContext().getPointerType(E->getType()), |
| 303 | SourceLocation()); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 304 | } |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 305 | ++helpersize; |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 306 | |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 307 | RValue r = EmitAnyExpr(E, Addr, false); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 308 | if (r.isScalar()) { |
| 309 | llvm::Value *Loc = r.getScalarVal(); |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 310 | const llvm::Type *Ty = Types[i+BlockFields]; |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 311 | if (BDRE->isByRef()) { |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 312 | // E is now the address of the value field, instead, we want the |
| 313 | // address of the actual ByRef struct. We optimize this slightly |
| 314 | // compared to gcc by not grabbing the forwarding slot as this must |
| 315 | // be done during Block_copy for us, and we can postpone the work |
| 316 | // until then. |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 317 | CharUnits offset = BlockDecls[BDRE->getDecl()]; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 318 | |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 319 | llvm::Value *BlockLiteral = LoadBlockStruct(); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 320 | |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 321 | Loc = Builder.CreateGEP(BlockLiteral, |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 322 | llvm::ConstantInt::get(llvm::Type::getInt64Ty(VMContext), |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 323 | offset.getQuantity()), |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 324 | "block.literal"); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 325 | Ty = llvm::PointerType::get(Ty, 0); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 326 | Loc = Builder.CreateBitCast(Loc, Ty); |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 327 | Loc = Builder.CreateLoad(Loc); |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 328 | // Loc = Builder.CreateBitCast(Loc, Ty); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 329 | } |
| 330 | Builder.CreateStore(Loc, Addr); |
| 331 | } else if (r.isComplex()) |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 332 | // FIXME: implement |
| 333 | ErrorUnsupported(BE, "complex in block literal"); |
| 334 | else if (r.isAggregate()) |
| 335 | ; // Already created into the destination |
| 336 | else |
| 337 | assert (0 && "bad block variable"); |
| 338 | // FIXME: Ensure that the offset created by the backend for |
| 339 | // the struct matches the previously computed offset in BlockDecls. |
| 340 | } |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 341 | NoteForHelper.resize(helpersize); |
Mike Stump | cf62d39 | 2009-03-06 18:42:23 +0000 | [diff] [blame] | 342 | |
| 343 | // __descriptor |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 344 | llvm::Value *Descriptor = BuildDescriptorBlockDecl(BE, |
| 345 | subBlockHasCopyDispose, |
Mike Stump | a803b0e | 2009-03-25 17:58:24 +0000 | [diff] [blame] | 346 | subBlockSize, Ty, |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 347 | &NoteForHelper); |
| 348 | Descriptor = Builder.CreateBitCast(Descriptor, PtrToInt8Ty); |
| 349 | Builder.CreateStore(Descriptor, Builder.CreateStructGEP(V, 4, "block.tmp")); |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 350 | } |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 351 | |
Mike Stump | bd65cac | 2009-02-19 01:01:04 +0000 | [diff] [blame] | 352 | QualType BPT = BE->getType(); |
Fariborz Jahanian | 263c4de | 2010-02-10 23:34:57 +0000 | [diff] [blame] | 353 | V = Builder.CreateBitCast(V, ConvertType(BPT)); |
| 354 | // See if this is a __weak block variable and the must call objc_read_weak |
| 355 | // on it. |
| 356 | const FunctionType *ftype = BPT->getPointeeType()->getAs<FunctionType>(); |
| 357 | QualType RES = ftype->getResultType(); |
| 358 | if (RES.isObjCGCWeak()) { |
| 359 | // Must cast argument to id* |
| 360 | const llvm::Type *ObjectPtrTy = |
| 361 | ConvertType(CGM.getContext().getObjCIdType()); |
| 362 | const llvm::Type *PtrObjectPtrTy = |
| 363 | llvm::PointerType::getUnqual(ObjectPtrTy); |
| 364 | V = Builder.CreateBitCast(V, PtrObjectPtrTy); |
| 365 | V = CGM.getObjCRuntime().EmitObjCWeakRead(*this, V); |
| 366 | } |
| 367 | return V; |
Mike Stump | e5fee25 | 2009-02-13 16:19:19 +0000 | [diff] [blame] | 368 | } |
| 369 | |
| 370 | |
Mike Stump | 2a99814 | 2009-03-04 18:17:45 +0000 | [diff] [blame] | 371 | const llvm::Type *BlockModule::getBlockDescriptorType() { |
Mike Stump | ab69514 | 2009-02-13 15:16:56 +0000 | [diff] [blame] | 372 | if (BlockDescriptorType) |
| 373 | return BlockDescriptorType; |
| 374 | |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 375 | const llvm::Type *UnsignedLongTy = |
Mike Stump | ab69514 | 2009-02-13 15:16:56 +0000 | [diff] [blame] | 376 | getTypes().ConvertType(getContext().UnsignedLongTy); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 377 | |
Mike Stump | ab69514 | 2009-02-13 15:16:56 +0000 | [diff] [blame] | 378 | // struct __block_descriptor { |
| 379 | // unsigned long reserved; |
| 380 | // unsigned long block_size; |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 381 | // |
| 382 | // // later, the following will be added |
| 383 | // |
| 384 | // struct { |
| 385 | // void (*copyHelper)(); |
| 386 | // void (*copyHelper)(); |
| 387 | // } helpers; // !!! optional |
| 388 | // |
| 389 | // const char *signature; // the block signature |
| 390 | // const char *layout; // reserved |
Mike Stump | ab69514 | 2009-02-13 15:16:56 +0000 | [diff] [blame] | 391 | // }; |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 392 | BlockDescriptorType = llvm::StructType::get(UnsignedLongTy->getContext(), |
| 393 | UnsignedLongTy, |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 394 | UnsignedLongTy, |
Mike Stump | ab69514 | 2009-02-13 15:16:56 +0000 | [diff] [blame] | 395 | NULL); |
| 396 | |
| 397 | getModule().addTypeName("struct.__block_descriptor", |
| 398 | BlockDescriptorType); |
| 399 | |
| 400 | return BlockDescriptorType; |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 401 | } |
| 402 | |
Mike Stump | 2a99814 | 2009-03-04 18:17:45 +0000 | [diff] [blame] | 403 | const llvm::Type *BlockModule::getGenericBlockLiteralType() { |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 404 | if (GenericBlockLiteralType) |
| 405 | return GenericBlockLiteralType; |
| 406 | |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 407 | const llvm::Type *BlockDescPtrTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 408 | llvm::PointerType::getUnqual(getBlockDescriptorType()); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 409 | |
Mike Stump | 7cbb360 | 2009-02-13 16:01:35 +0000 | [diff] [blame] | 410 | const llvm::IntegerType *IntTy = cast<llvm::IntegerType>( |
| 411 | getTypes().ConvertType(getContext().IntTy)); |
| 412 | |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 413 | // struct __block_literal_generic { |
Mike Stump | bd65cac | 2009-02-19 01:01:04 +0000 | [diff] [blame] | 414 | // void *__isa; |
| 415 | // int __flags; |
| 416 | // int __reserved; |
| 417 | // void (*__invoke)(void *); |
| 418 | // struct __block_descriptor *__descriptor; |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 419 | // }; |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 420 | GenericBlockLiteralType = llvm::StructType::get(IntTy->getContext(), |
Owen Anderson | 47a434f | 2009-08-05 23:18:46 +0000 | [diff] [blame] | 421 | PtrToInt8Ty, |
Mike Stump | 7cbb360 | 2009-02-13 16:01:35 +0000 | [diff] [blame] | 422 | IntTy, |
| 423 | IntTy, |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 424 | PtrToInt8Ty, |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 425 | BlockDescPtrTy, |
| 426 | NULL); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 427 | |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 428 | getModule().addTypeName("struct.__block_literal_generic", |
| 429 | GenericBlockLiteralType); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 430 | |
Mike Stump | 9b8a797 | 2009-02-13 15:25:34 +0000 | [diff] [blame] | 431 | return GenericBlockLiteralType; |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 432 | } |
| 433 | |
Mike Stump | bd65cac | 2009-02-19 01:01:04 +0000 | [diff] [blame] | 434 | |
Anders Carlsson | a1736c0 | 2009-12-24 21:13:40 +0000 | [diff] [blame] | 435 | RValue CodeGenFunction::EmitBlockCallExpr(const CallExpr* E, |
| 436 | ReturnValueSlot ReturnValue) { |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 437 | const BlockPointerType *BPT = |
Ted Kremenek | 6217b80 | 2009-07-29 21:53:49 +0000 | [diff] [blame] | 438 | E->getCallee()->getType()->getAs<BlockPointerType>(); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 439 | |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 440 | llvm::Value *Callee = EmitScalarExpr(E->getCallee()); |
| 441 | |
| 442 | // Get a pointer to the generic block literal. |
| 443 | const llvm::Type *BlockLiteralTy = |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 444 | llvm::PointerType::getUnqual(CGM.getGenericBlockLiteralType()); |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 445 | |
| 446 | // Bitcast the callee to a block literal. |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 447 | llvm::Value *BlockLiteral = |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 448 | Builder.CreateBitCast(Callee, BlockLiteralTy, "block.literal"); |
| 449 | |
| 450 | // Get the function pointer from the literal. |
| 451 | llvm::Value *FuncPtr = Builder.CreateStructGEP(BlockLiteral, 3, "tmp"); |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 452 | |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 453 | BlockLiteral = |
| 454 | Builder.CreateBitCast(BlockLiteral, |
Benjamin Kramer | 3c0ef8c | 2009-10-13 10:07:13 +0000 | [diff] [blame] | 455 | llvm::Type::getInt8PtrTy(VMContext), |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 456 | "tmp"); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 457 | |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 458 | // Add the block literal. |
| 459 | QualType VoidPtrTy = getContext().getPointerType(getContext().VoidTy); |
| 460 | CallArgList Args; |
| 461 | Args.push_back(std::make_pair(RValue::get(BlockLiteral), VoidPtrTy)); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 462 | |
Anders Carlsson | 782f397 | 2009-04-08 23:13:16 +0000 | [diff] [blame] | 463 | QualType FnType = BPT->getPointeeType(); |
| 464 | |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 465 | // And the rest of the arguments. |
John McCall | 183700f | 2009-09-21 23:43:11 +0000 | [diff] [blame] | 466 | EmitCallArgs(Args, FnType->getAs<FunctionProtoType>(), |
Anders Carlsson | 782f397 | 2009-04-08 23:13:16 +0000 | [diff] [blame] | 467 | E->arg_begin(), E->arg_end()); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 468 | |
Anders Carlsson | 6e460ff | 2009-04-07 22:10:22 +0000 | [diff] [blame] | 469 | // Load the function. |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 470 | llvm::Value *Func = Builder.CreateLoad(FuncPtr, "tmp"); |
Anders Carlsson | 6e460ff | 2009-04-07 22:10:22 +0000 | [diff] [blame] | 471 | |
John McCall | 04a67a6 | 2010-02-05 21:31:56 +0000 | [diff] [blame] | 472 | const FunctionType *FuncTy = FnType->getAs<FunctionType>(); |
| 473 | QualType ResultType = FuncTy->getResultType(); |
Anders Carlsson | a17d7cc | 2009-04-08 02:55:55 +0000 | [diff] [blame] | 474 | |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 475 | const CGFunctionInfo &FnInfo = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 476 | CGM.getTypes().getFunctionInfo(ResultType, Args, |
| 477 | FuncTy->getExtInfo()); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 478 | |
Anders Carlsson | 6e460ff | 2009-04-07 22:10:22 +0000 | [diff] [blame] | 479 | // Cast the function pointer to the right type. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 480 | const llvm::Type *BlockFTy = |
Anders Carlsson | a17d7cc | 2009-04-08 02:55:55 +0000 | [diff] [blame] | 481 | CGM.getTypes().GetFunctionType(FnInfo, false); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 482 | |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 483 | const llvm::Type *BlockFTyPtr = llvm::PointerType::getUnqual(BlockFTy); |
Anders Carlsson | 6e460ff | 2009-04-07 22:10:22 +0000 | [diff] [blame] | 484 | Func = Builder.CreateBitCast(Func, BlockFTyPtr); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 485 | |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 486 | // And call the block. |
Anders Carlsson | a1736c0 | 2009-12-24 21:13:40 +0000 | [diff] [blame] | 487 | return EmitCall(FnInfo, Func, ReturnValue, Args); |
Anders Carlsson | acfde80 | 2009-02-12 00:39:25 +0000 | [diff] [blame] | 488 | } |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 489 | |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 490 | CharUnits CodeGenFunction::AllocateBlockDecl(const BlockDeclRefExpr *E) { |
Anders Carlsson | 7dfa407 | 2009-09-12 02:14:24 +0000 | [diff] [blame] | 491 | const ValueDecl *VD = E->getDecl(); |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 492 | CharUnits &offset = BlockDecls[VD]; |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 493 | |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 494 | // See if we have already allocated an offset for this variable. |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 495 | if (offset.isPositive()) |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 496 | return offset; |
| 497 | |
| 498 | // Don't run the expensive check, unless we have to. |
Mike Stump | 083c25e | 2009-10-22 00:49:09 +0000 | [diff] [blame] | 499 | if (!BlockHasCopyDispose) |
| 500 | if (E->isByRef() |
| 501 | || BlockRequiresCopying(E->getType())) |
| 502 | BlockHasCopyDispose = true; |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 503 | |
| 504 | // if not, allocate one now. |
| 505 | offset = getBlockOffset(E); |
| 506 | |
| 507 | return offset; |
| 508 | } |
| 509 | |
| 510 | llvm::Value *CodeGenFunction::GetAddrOfBlockDecl(const BlockDeclRefExpr *E) { |
| 511 | const ValueDecl *VD = E->getDecl(); |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 512 | CharUnits offset = AllocateBlockDecl(E); |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 513 | |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 514 | |
| 515 | llvm::Value *BlockLiteral = LoadBlockStruct(); |
| 516 | llvm::Value *V = Builder.CreateGEP(BlockLiteral, |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 517 | llvm::ConstantInt::get(llvm::Type::getInt64Ty(VMContext), |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 518 | offset.getQuantity()), |
Mike Stump | 58a8514 | 2009-03-04 22:48:06 +0000 | [diff] [blame] | 519 | "block.literal"); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 520 | if (E->isByRef()) { |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 521 | const llvm::Type *PtrStructTy |
Anders Carlsson | 7dfa407 | 2009-09-12 02:14:24 +0000 | [diff] [blame] | 522 | = llvm::PointerType::get(BuildByRefType(VD), 0); |
Mike Stump | a8b60c9 | 2009-03-21 21:00:35 +0000 | [diff] [blame] | 523 | // The block literal will need a copy/destroy helper. |
| 524 | BlockHasCopyDispose = true; |
Anders Carlsson | 7dfa407 | 2009-09-12 02:14:24 +0000 | [diff] [blame] | 525 | |
| 526 | const llvm::Type *Ty = PtrStructTy; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 527 | Ty = llvm::PointerType::get(Ty, 0); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 528 | V = Builder.CreateBitCast(V, Ty); |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 529 | V = Builder.CreateLoad(V); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 530 | V = Builder.CreateStructGEP(V, 1, "forwarding"); |
Daniel Dunbar | 2da84ff | 2009-11-29 21:23:36 +0000 | [diff] [blame] | 531 | V = Builder.CreateLoad(V); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 532 | V = Builder.CreateBitCast(V, PtrStructTy); |
Anders Carlsson | 7dfa407 | 2009-09-12 02:14:24 +0000 | [diff] [blame] | 533 | V = Builder.CreateStructGEP(V, getByRefValueLLVMField(VD), |
| 534 | VD->getNameAsString()); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 535 | } else { |
Anders Carlsson | 7dfa407 | 2009-09-12 02:14:24 +0000 | [diff] [blame] | 536 | const llvm::Type *Ty = CGM.getTypes().ConvertType(VD->getType()); |
| 537 | |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 538 | Ty = llvm::PointerType::get(Ty, 0); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 539 | V = Builder.CreateBitCast(V, Ty); |
| 540 | } |
| 541 | return V; |
| 542 | } |
| 543 | |
Mike Stump | 6cc88f7 | 2009-03-20 21:53:12 +0000 | [diff] [blame] | 544 | void CodeGenFunction::BlockForwardSelf() { |
| 545 | const ObjCMethodDecl *OMD = cast<ObjCMethodDecl>(CurFuncDecl); |
| 546 | ImplicitParamDecl *SelfDecl = OMD->getSelfDecl(); |
| 547 | llvm::Value *&DMEntry = LocalDeclMap[SelfDecl]; |
| 548 | if (DMEntry) |
| 549 | return; |
| 550 | // FIXME - Eliminate BlockDeclRefExprs, clients don't need/want to care |
| 551 | BlockDeclRefExpr *BDRE = new (getContext()) |
| 552 | BlockDeclRefExpr(SelfDecl, |
| 553 | SelfDecl->getType(), SourceLocation(), false); |
| 554 | DMEntry = GetAddrOfBlockDecl(BDRE); |
| 555 | } |
| 556 | |
Mike Stump | 67a6448 | 2009-02-14 22:16:35 +0000 | [diff] [blame] | 557 | llvm::Constant * |
Mike Stump | 90a9043 | 2009-03-04 18:47:42 +0000 | [diff] [blame] | 558 | BlockModule::GetAddrOfGlobalBlock(const BlockExpr *BE, const char * n) { |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 559 | // Generate the block descriptor. |
| 560 | const llvm::Type *UnsignedLongTy = Types.ConvertType(Context.UnsignedLongTy); |
Mike Stump | 7cbb360 | 2009-02-13 16:01:35 +0000 | [diff] [blame] | 561 | const llvm::IntegerType *IntTy = cast<llvm::IntegerType>( |
| 562 | getTypes().ConvertType(getContext().IntTy)); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 563 | |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 564 | llvm::Constant *DescriptorFields[4]; |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 565 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 566 | // Reserved |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 567 | DescriptorFields[0] = llvm::Constant::getNullValue(UnsignedLongTy); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 568 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 569 | // Block literal size. For global blocks we just use the size of the generic |
| 570 | // block literal struct. |
Ken Dyck | 687cc4a | 2010-01-26 13:48:07 +0000 | [diff] [blame] | 571 | CharUnits BlockLiteralSize = |
| 572 | CGM.GetTargetTypeStoreSize(getGenericBlockLiteralType()); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 573 | DescriptorFields[1] = |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 574 | llvm::ConstantInt::get(UnsignedLongTy,BlockLiteralSize.getQuantity()); |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 575 | |
| 576 | // signature. non-optional ObjC-style method descriptor @encode sequence |
| 577 | std::string BlockTypeEncoding; |
| 578 | CGM.getContext().getObjCEncodingForBlock(BE, BlockTypeEncoding); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 579 | |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 580 | DescriptorFields[2] = llvm::ConstantExpr::getBitCast( |
| 581 | CGM.GetAddrOfConstantCString(BlockTypeEncoding), PtrToInt8Ty); |
| 582 | |
| 583 | // layout |
| 584 | DescriptorFields[3] = |
| 585 | llvm::ConstantInt::get(UnsignedLongTy,0); |
| 586 | |
| 587 | // build the structure from the 4 elements |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 588 | llvm::Constant *DescriptorStruct = |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 589 | llvm::ConstantStruct::get(VMContext, &DescriptorFields[0], 4, false); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 590 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 591 | llvm::GlobalVariable *Descriptor = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 592 | new llvm::GlobalVariable(getModule(), DescriptorStruct->getType(), true, |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 593 | llvm::GlobalVariable::InternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 594 | DescriptorStruct, "__block_descriptor_global"); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 595 | |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 596 | int FieldCount = 5; |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 597 | // Generate the constants for the block literal. |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 598 | |
| 599 | std::vector<llvm::Constant*> LiteralFields(FieldCount); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 600 | |
Mike Stump | 67a6448 | 2009-02-14 22:16:35 +0000 | [diff] [blame] | 601 | CodeGenFunction::BlockInfo Info(0, n); |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 602 | CharUnits subBlockSize; |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 603 | CharUnits subBlockAlign; |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 604 | llvm::SmallVector<const Expr *, 8> subBlockDeclRefDecls; |
Daniel Dunbar | d67b09a | 2009-03-12 03:07:24 +0000 | [diff] [blame] | 605 | bool subBlockHasCopyDispose = false; |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 606 | llvm::DenseMap<const Decl*, llvm::Value*> LocalDeclMap; |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 607 | llvm::Function *Fn |
Mike Stump | 6cc88f7 | 2009-03-20 21:53:12 +0000 | [diff] [blame] | 608 | = CodeGenFunction(CGM).GenerateBlockFunction(BE, Info, 0, LocalDeclMap, |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 609 | subBlockSize, |
Mike Stump | 90a9043 | 2009-03-04 18:47:42 +0000 | [diff] [blame] | 610 | subBlockAlign, |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 611 | subBlockDeclRefDecls, |
| 612 | subBlockHasCopyDispose); |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 613 | assert(subBlockSize == BlockLiteralSize |
| 614 | && "no imports allowed for global block"); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 615 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 616 | // isa |
Mike Stump | f99f1d0 | 2009-02-13 17:23:42 +0000 | [diff] [blame] | 617 | LiteralFields[0] = getNSConcreteGlobalBlock(); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 618 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 619 | // Flags |
Blaine Garst | 2a7eb28 | 2010-02-23 21:51:17 +0000 | [diff] [blame] | 620 | LiteralFields[1] = |
Blaine Garst | a36e223 | 2010-03-05 01:29:59 +0000 | [diff] [blame] | 621 | llvm::ConstantInt::get(IntTy, BLOCK_IS_GLOBAL | BLOCK_HAS_SIGNATURE); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 622 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 623 | // Reserved |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 624 | LiteralFields[2] = llvm::Constant::getNullValue(IntTy); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 625 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 626 | // Function |
| 627 | LiteralFields[3] = Fn; |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 628 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 629 | // Descriptor |
| 630 | LiteralFields[4] = Descriptor; |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 631 | |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 632 | llvm::Constant *BlockLiteralStruct = |
David Chisnall | 5e530af | 2009-11-17 19:33:30 +0000 | [diff] [blame] | 633 | llvm::ConstantStruct::get(VMContext, LiteralFields, false); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 634 | |
| 635 | llvm::GlobalVariable *BlockLiteral = |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 636 | new llvm::GlobalVariable(getModule(), BlockLiteralStruct->getType(), true, |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 637 | llvm::GlobalVariable::InternalLinkage, |
Owen Anderson | 1c431b3 | 2009-07-08 19:05:04 +0000 | [diff] [blame] | 638 | BlockLiteralStruct, "__block_literal_global"); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 639 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 640 | return BlockLiteral; |
| 641 | } |
| 642 | |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 643 | llvm::Value *CodeGenFunction::LoadBlockStruct() { |
Mike Stump | bf1914b | 2009-10-20 20:30:01 +0000 | [diff] [blame] | 644 | llvm::Value *V = Builder.CreateLoad(LocalDeclMap[getBlockStructDecl()], |
| 645 | "self"); |
| 646 | // For now, we codegen based upon byte offsets. |
| 647 | return Builder.CreateBitCast(V, PtrToInt8Ty); |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 648 | } |
| 649 | |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 650 | llvm::Function * |
| 651 | CodeGenFunction::GenerateBlockFunction(const BlockExpr *BExpr, |
| 652 | const BlockInfo& Info, |
Mike Stump | 6cc88f7 | 2009-03-20 21:53:12 +0000 | [diff] [blame] | 653 | const Decl *OuterFuncDecl, |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 654 | llvm::DenseMap<const Decl*, llvm::Value*> ldm, |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 655 | CharUnits &Size, |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 656 | CharUnits &Align, |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 657 | llvm::SmallVector<const Expr *, 8> &subBlockDeclRefDecls, |
| 658 | bool &subBlockHasCopyDispose) { |
Devang Patel | 963dfbd | 2009-04-15 21:51:44 +0000 | [diff] [blame] | 659 | |
| 660 | // Check if we should generate debug info for this block. |
| 661 | if (CGM.getDebugInfo()) |
| 662 | DebugInfo = CGM.getDebugInfo(); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 663 | |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 664 | // Arrange for local static and local extern declarations to appear |
| 665 | // to be local to this function as well, as they are directly referenced |
| 666 | // in a block. |
| 667 | for (llvm::DenseMap<const Decl *, llvm::Value*>::iterator i = ldm.begin(); |
| 668 | i != ldm.end(); |
| 669 | ++i) { |
| 670 | const VarDecl *VD = dyn_cast<VarDecl>(i->first); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 671 | |
Daniel Dunbar | 5466c7b | 2009-04-14 02:25:56 +0000 | [diff] [blame] | 672 | if (VD->getStorageClass() == VarDecl::Static || VD->hasExternalStorage()) |
Mike Stump | 7f28a9c | 2009-03-13 23:34:28 +0000 | [diff] [blame] | 673 | LocalDeclMap[VD] = i->second; |
| 674 | } |
| 675 | |
Ken Dyck | 687cc4a | 2010-01-26 13:48:07 +0000 | [diff] [blame] | 676 | BlockOffset = |
| 677 | CGM.GetTargetTypeStoreSize(CGM.getGenericBlockLiteralType()); |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 678 | BlockAlign = getContext().getTypeAlignInChars(getContext().VoidPtrTy); |
Eli Friedman | 48f9122 | 2009-03-28 03:24:54 +0000 | [diff] [blame] | 679 | |
Fariborz Jahanian | 140fb26 | 2009-04-11 17:55:15 +0000 | [diff] [blame] | 680 | const FunctionType *BlockFunctionType = BExpr->getFunctionType(); |
| 681 | QualType ResultType; |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 682 | FunctionType::ExtInfo EInfo = getFunctionExtInfo(*BlockFunctionType); |
Fariborz Jahanian | 140fb26 | 2009-04-11 17:55:15 +0000 | [diff] [blame] | 683 | bool IsVariadic; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 684 | if (const FunctionProtoType *FTy = |
Fariborz Jahanian | da0895d | 2009-04-11 18:54:57 +0000 | [diff] [blame] | 685 | dyn_cast<FunctionProtoType>(BlockFunctionType)) { |
Fariborz Jahanian | 140fb26 | 2009-04-11 17:55:15 +0000 | [diff] [blame] | 686 | ResultType = FTy->getResultType(); |
| 687 | IsVariadic = FTy->isVariadic(); |
Mike Stump | b3589f4 | 2009-07-30 22:28:39 +0000 | [diff] [blame] | 688 | } else { |
Fariborz Jahanian | 140fb26 | 2009-04-11 17:55:15 +0000 | [diff] [blame] | 689 | // K&R style block. |
| 690 | ResultType = BlockFunctionType->getResultType(); |
| 691 | IsVariadic = false; |
| 692 | } |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 693 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 694 | FunctionArgList Args; |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 695 | |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 696 | CurFuncDecl = OuterFuncDecl; |
| 697 | |
Chris Lattner | 161d36d | 2009-02-28 19:01:03 +0000 | [diff] [blame] | 698 | const BlockDecl *BD = BExpr->getBlockDecl(); |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 699 | |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 700 | IdentifierInfo *II = &CGM.getContext().Idents.get(".block_descriptor"); |
Mike Stump | adaaad3 | 2009-10-20 02:12:22 +0000 | [diff] [blame] | 701 | |
Mike Stump | bfbd5df | 2009-10-21 18:24:18 +0000 | [diff] [blame] | 702 | // Allocate all BlockDeclRefDecls, so we can calculate the right ParmTy below. |
Mike Stump | 0298d38 | 2009-10-21 22:02:08 +0000 | [diff] [blame] | 703 | AllocateAllBlockDeclRefs(Info, this); |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 704 | |
Mike Stump | 083c25e | 2009-10-22 00:49:09 +0000 | [diff] [blame] | 705 | QualType ParmTy = getContext().getBlockParmType(BlockHasCopyDispose, |
| 706 | BlockDeclRefDecls); |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 707 | // FIXME: This leaks |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 708 | ImplicitParamDecl *SelfDecl = |
John McCall | 2888b65 | 2010-04-30 21:35:41 +0000 | [diff] [blame^] | 709 | ImplicitParamDecl::Create(getContext(), const_cast<BlockDecl*>(BD), |
Mike Stump | adaaad3 | 2009-10-20 02:12:22 +0000 | [diff] [blame] | 710 | SourceLocation(), II, |
| 711 | ParmTy); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 712 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 713 | Args.push_back(std::make_pair(SelfDecl, SelfDecl->getType())); |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 714 | BlockStructDecl = SelfDecl; |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 715 | |
Steve Naroff | e78b809 | 2009-03-13 16:56:44 +0000 | [diff] [blame] | 716 | for (BlockDecl::param_const_iterator i = BD->param_begin(), |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 717 | e = BD->param_end(); i != e; ++i) |
Mike Stump | 1905061 | 2009-02-17 23:25:52 +0000 | [diff] [blame] | 718 | Args.push_back(std::make_pair(*i, (*i)->getType())); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 719 | |
| 720 | const CGFunctionInfo &FI = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 721 | CGM.getTypes().getFunctionInfo(ResultType, Args, EInfo); |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 722 | |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 723 | CodeGenTypes &Types = CGM.getTypes(); |
Fariborz Jahanian | 140fb26 | 2009-04-11 17:55:15 +0000 | [diff] [blame] | 724 | const llvm::FunctionType *LTy = Types.GetFunctionType(FI, IsVariadic); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 725 | |
| 726 | llvm::Function *Fn = |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 727 | llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 728 | llvm::Twine("__") + Info.Name + "_block_invoke_", |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 729 | &CGM.getModule()); |
Mike Stump | a544854 | 2009-02-13 15:32:32 +0000 | [diff] [blame] | 730 | |
Daniel Dunbar | 0e4f40e | 2009-04-17 00:48:04 +0000 | [diff] [blame] | 731 | CGM.SetInternalFunctionAttributes(BD, Fn, FI); |
| 732 | |
Chris Lattner | 4863db4 | 2009-04-23 07:18:56 +0000 | [diff] [blame] | 733 | StartFunction(BD, ResultType, Fn, Args, |
Chris Lattner | 161d36d | 2009-02-28 19:01:03 +0000 | [diff] [blame] | 734 | BExpr->getBody()->getLocEnd()); |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 735 | |
Chris Lattner | 4863db4 | 2009-04-23 07:18:56 +0000 | [diff] [blame] | 736 | CurFuncDecl = OuterFuncDecl; |
Chris Lattner | b5437d2 | 2009-04-23 05:30:27 +0000 | [diff] [blame] | 737 | CurCodeDecl = BD; |
Mike Stump | b289b3f | 2009-10-01 22:29:41 +0000 | [diff] [blame] | 738 | |
| 739 | // Save a spot to insert the debug information for all the BlockDeclRefDecls. |
| 740 | llvm::BasicBlock *entry = Builder.GetInsertBlock(); |
| 741 | llvm::BasicBlock::iterator entry_ptr = Builder.GetInsertPoint(); |
| 742 | --entry_ptr; |
| 743 | |
Chris Lattner | 161d36d | 2009-02-28 19:01:03 +0000 | [diff] [blame] | 744 | EmitStmt(BExpr->getBody()); |
Mike Stump | b289b3f | 2009-10-01 22:29:41 +0000 | [diff] [blame] | 745 | |
Mike Stump | de8c5c7 | 2009-10-01 00:27:30 +0000 | [diff] [blame] | 746 | // Remember where we were... |
| 747 | llvm::BasicBlock *resume = Builder.GetInsertBlock(); |
Mike Stump | b289b3f | 2009-10-01 22:29:41 +0000 | [diff] [blame] | 748 | |
Mike Stump | de8c5c7 | 2009-10-01 00:27:30 +0000 | [diff] [blame] | 749 | // Go back to the entry. |
Mike Stump | b289b3f | 2009-10-01 22:29:41 +0000 | [diff] [blame] | 750 | ++entry_ptr; |
| 751 | Builder.SetInsertPoint(entry, entry_ptr); |
| 752 | |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 753 | if (CGDebugInfo *DI = getDebugInfo()) { |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 754 | // Emit debug information for all the BlockDeclRefDecls. |
Chris Lattner | 14b1a36 | 2010-01-25 03:29:35 +0000 | [diff] [blame] | 755 | for (unsigned i = 0, e = BlockDeclRefDecls.size(); i != e; ++i) { |
| 756 | if (const BlockDeclRefExpr *BDRE = |
| 757 | dyn_cast<BlockDeclRefExpr>(BlockDeclRefDecls[i])) { |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 758 | const ValueDecl *D = BDRE->getDecl(); |
| 759 | DI->setLocation(D->getLocation()); |
| 760 | DI->EmitDeclareOfBlockDeclRefVariable(BDRE, |
| 761 | LocalDeclMap[getBlockStructDecl()], |
| 762 | Builder, this); |
| 763 | } |
| 764 | } |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 765 | } |
Mike Stump | de8c5c7 | 2009-10-01 00:27:30 +0000 | [diff] [blame] | 766 | // And resume where we left off. |
| 767 | if (resume == 0) |
| 768 | Builder.ClearInsertionPoint(); |
| 769 | else |
| 770 | Builder.SetInsertPoint(resume); |
Mike Stump | b1a6e68 | 2009-09-30 02:43:10 +0000 | [diff] [blame] | 771 | |
Chris Lattner | 161d36d | 2009-02-28 19:01:03 +0000 | [diff] [blame] | 772 | FinishFunction(cast<CompoundStmt>(BExpr->getBody())->getRBracLoc()); |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 773 | |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 774 | // The runtime needs a minimum alignment of a void *. |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 775 | CharUnits MinAlign = getContext().getTypeAlignInChars(getContext().VoidPtrTy); |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 776 | BlockOffset = CharUnits::fromQuantity( |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 777 | llvm::RoundUpToAlignment(BlockOffset.getQuantity(), |
| 778 | MinAlign.getQuantity())); |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 779 | |
Mike Stump | 4e7a1f7 | 2009-02-21 20:00:35 +0000 | [diff] [blame] | 780 | Size = BlockOffset; |
Mike Stump | 8a2b4b1 | 2009-02-25 23:33:13 +0000 | [diff] [blame] | 781 | Align = BlockAlign; |
| 782 | subBlockDeclRefDecls = BlockDeclRefDecls; |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 783 | subBlockHasCopyDispose |= BlockHasCopyDispose; |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 784 | return Fn; |
| 785 | } |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 786 | |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 787 | CharUnits BlockFunction::getBlockOffset(const BlockDeclRefExpr *BDRE) { |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 788 | const ValueDecl *D = dyn_cast<ValueDecl>(BDRE->getDecl()); |
| 789 | |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 790 | CharUnits Size = getContext().getTypeSizeInChars(D->getType()); |
Ken Dyck | 8b752f1 | 2010-01-27 17:10:57 +0000 | [diff] [blame] | 791 | CharUnits Align = getContext().getDeclAlign(D); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 792 | |
| 793 | if (BDRE->isByRef()) { |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 794 | Size = getContext().getTypeSizeInChars(getContext().VoidPtrTy); |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 795 | Align = getContext().getTypeAlignInChars(getContext().VoidPtrTy); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 796 | } |
| 797 | |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 798 | assert ((Align.isPositive()) && "alignment must be 1 byte or more"); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 799 | |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 800 | CharUnits OldOffset = BlockOffset; |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 801 | |
| 802 | // 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] | 803 | BlockOffset = CharUnits::fromQuantity( |
Ken Dyck | 30a8a27 | 2010-01-26 19:13:33 +0000 | [diff] [blame] | 804 | llvm::RoundUpToAlignment(BlockOffset.getQuantity(), Align.getQuantity())); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 805 | BlockAlign = std::max(Align, BlockAlign); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 806 | |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 807 | CharUnits Pad = BlockOffset - OldOffset; |
| 808 | if (Pad.isPositive()) { |
| 809 | llvm::ArrayType::get(llvm::Type::getInt8Ty(VMContext), Pad.getQuantity()); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 810 | QualType PadTy = getContext().getConstantArrayType(getContext().CharTy, |
Ken Dyck | 199c3d6 | 2010-01-11 17:06:35 +0000 | [diff] [blame] | 811 | llvm::APInt(32, |
| 812 | Pad.getQuantity()), |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 813 | ArrayType::Normal, 0); |
| 814 | ValueDecl *PadDecl = VarDecl::Create(getContext(), 0, SourceLocation(), |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 815 | 0, QualType(PadTy), 0, |
| 816 | VarDecl::None, VarDecl::None); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 817 | Expr *E; |
| 818 | E = new (getContext()) DeclRefExpr(PadDecl, PadDecl->getType(), |
Douglas Gregor | 0da76df | 2009-11-23 11:41:28 +0000 | [diff] [blame] | 819 | SourceLocation()); |
Mike Stump | a99038c | 2009-02-28 09:07:16 +0000 | [diff] [blame] | 820 | BlockDeclRefDecls.push_back(E); |
| 821 | } |
| 822 | BlockDeclRefDecls.push_back(BDRE); |
| 823 | |
| 824 | BlockOffset += Size; |
| 825 | return BlockOffset-Size; |
| 826 | } |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 827 | |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 828 | llvm::Constant *BlockFunction:: |
| 829 | GenerateCopyHelperFunction(bool BlockHasCopyDispose, const llvm::StructType *T, |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 830 | std::vector<HelperInfo> *NoteForHelperp) { |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 831 | QualType R = getContext().VoidTy; |
| 832 | |
| 833 | FunctionArgList Args; |
| 834 | // FIXME: This leaks |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 835 | ImplicitParamDecl *Dst = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 836 | ImplicitParamDecl::Create(getContext(), 0, |
| 837 | SourceLocation(), 0, |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 838 | getContext().getPointerType(getContext().VoidTy)); |
| 839 | Args.push_back(std::make_pair(Dst, Dst->getType())); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 840 | ImplicitParamDecl *Src = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 841 | ImplicitParamDecl::Create(getContext(), 0, |
| 842 | SourceLocation(), 0, |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 843 | getContext().getPointerType(getContext().VoidTy)); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 844 | Args.push_back(std::make_pair(Src, Src->getType())); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 845 | |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 846 | const CGFunctionInfo &FI = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 847 | CGM.getTypes().getFunctionInfo(R, Args, FunctionType::ExtInfo()); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 848 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 849 | // FIXME: We'd like to put these into a mergable by content, with |
| 850 | // internal linkage. |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 851 | CodeGenTypes &Types = CGM.getTypes(); |
| 852 | const llvm::FunctionType *LTy = Types.GetFunctionType(FI, false); |
| 853 | |
| 854 | llvm::Function *Fn = |
| 855 | llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 856 | "__copy_helper_block_", &CGM.getModule()); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 857 | |
| 858 | IdentifierInfo *II |
| 859 | = &CGM.getContext().Idents.get("__copy_helper_block_"); |
| 860 | |
| 861 | FunctionDecl *FD = FunctionDecl::Create(getContext(), |
| 862 | getContext().getTranslationUnitDecl(), |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 863 | SourceLocation(), II, R, 0, |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 864 | FunctionDecl::Static, |
| 865 | FunctionDecl::None, |
| 866 | false, |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 867 | true); |
| 868 | CGF.StartFunction(FD, R, Fn, Args, SourceLocation()); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 869 | |
| 870 | llvm::Value *SrcObj = CGF.GetAddrOfLocalVar(Src); |
| 871 | llvm::Type *PtrPtrT; |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 872 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 873 | if (NoteForHelperp) { |
| 874 | std::vector<HelperInfo> &NoteForHelper = *NoteForHelperp; |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 875 | |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 876 | PtrPtrT = llvm::PointerType::get(llvm::PointerType::get(T, 0), 0); |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 877 | SrcObj = Builder.CreateBitCast(SrcObj, PtrPtrT); |
| 878 | SrcObj = Builder.CreateLoad(SrcObj); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 879 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 880 | llvm::Value *DstObj = CGF.GetAddrOfLocalVar(Dst); |
Mike Stump | c2f4c34 | 2009-04-15 22:11:36 +0000 | [diff] [blame] | 881 | llvm::Type *PtrPtrT; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 882 | PtrPtrT = llvm::PointerType::get(llvm::PointerType::get(T, 0), 0); |
Mike Stump | c2f4c34 | 2009-04-15 22:11:36 +0000 | [diff] [blame] | 883 | DstObj = Builder.CreateBitCast(DstObj, PtrPtrT); |
| 884 | DstObj = Builder.CreateLoad(DstObj); |
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 | for (unsigned i=0; i < NoteForHelper.size(); ++i) { |
| 887 | int flag = NoteForHelper[i].flag; |
| 888 | int index = NoteForHelper[i].index; |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 889 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 890 | if ((NoteForHelper[i].flag & BLOCK_FIELD_IS_BYREF) |
| 891 | || NoteForHelper[i].RequiresCopying) { |
| 892 | llvm::Value *Srcv = SrcObj; |
| 893 | Srcv = Builder.CreateStructGEP(Srcv, index); |
| 894 | Srcv = Builder.CreateBitCast(Srcv, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 895 | llvm::PointerType::get(PtrToInt8Ty, 0)); |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 896 | Srcv = Builder.CreateLoad(Srcv); |
| 897 | |
| 898 | llvm::Value *Dstv = Builder.CreateStructGEP(DstObj, index); |
| 899 | Dstv = Builder.CreateBitCast(Dstv, PtrToInt8Ty); |
| 900 | |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 901 | llvm::Value *N = llvm::ConstantInt::get( |
| 902 | llvm::Type::getInt32Ty(T->getContext()), flag); |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 903 | llvm::Value *F = getBlockObjectAssign(); |
| 904 | Builder.CreateCall3(F, Dstv, Srcv, N); |
| 905 | } |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 906 | } |
| 907 | } |
| 908 | |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 909 | CGF.FinishFunction(); |
| 910 | |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 911 | return llvm::ConstantExpr::getBitCast(Fn, PtrToInt8Ty); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 912 | } |
| 913 | |
Mike Stump | cf62d39 | 2009-03-06 18:42:23 +0000 | [diff] [blame] | 914 | llvm::Constant *BlockFunction:: |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 915 | GenerateDestroyHelperFunction(bool BlockHasCopyDispose, |
| 916 | const llvm::StructType* T, |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 917 | std::vector<HelperInfo> *NoteForHelperp) { |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 918 | QualType R = getContext().VoidTy; |
| 919 | |
| 920 | FunctionArgList Args; |
| 921 | // FIXME: This leaks |
| 922 | ImplicitParamDecl *Src = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 923 | ImplicitParamDecl::Create(getContext(), 0, |
| 924 | SourceLocation(), 0, |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 925 | getContext().getPointerType(getContext().VoidTy)); |
| 926 | |
| 927 | Args.push_back(std::make_pair(Src, Src->getType())); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 928 | |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 929 | const CGFunctionInfo &FI = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 930 | CGM.getTypes().getFunctionInfo(R, Args, FunctionType::ExtInfo()); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 931 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 932 | // FIXME: We'd like to put these into a mergable by content, with |
| 933 | // internal linkage. |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 934 | CodeGenTypes &Types = CGM.getTypes(); |
| 935 | const llvm::FunctionType *LTy = Types.GetFunctionType(FI, false); |
| 936 | |
| 937 | llvm::Function *Fn = |
| 938 | llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 939 | "__destroy_helper_block_", &CGM.getModule()); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 940 | |
| 941 | IdentifierInfo *II |
| 942 | = &CGM.getContext().Idents.get("__destroy_helper_block_"); |
| 943 | |
| 944 | FunctionDecl *FD = FunctionDecl::Create(getContext(), |
| 945 | getContext().getTranslationUnitDecl(), |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 946 | SourceLocation(), II, R, 0, |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 947 | FunctionDecl::Static, |
| 948 | FunctionDecl::None, |
| 949 | false, true); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 950 | CGF.StartFunction(FD, R, Fn, Args, SourceLocation()); |
Mike Stump | 1edf6b6 | 2009-03-07 02:53:18 +0000 | [diff] [blame] | 951 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 952 | if (NoteForHelperp) { |
| 953 | std::vector<HelperInfo> &NoteForHelper = *NoteForHelperp; |
Mike Stump | 1edf6b6 | 2009-03-07 02:53:18 +0000 | [diff] [blame] | 954 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 955 | llvm::Value *SrcObj = CGF.GetAddrOfLocalVar(Src); |
| 956 | llvm::Type *PtrPtrT; |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 957 | PtrPtrT = llvm::PointerType::get(llvm::PointerType::get(T, 0), 0); |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 958 | SrcObj = Builder.CreateBitCast(SrcObj, PtrPtrT); |
| 959 | SrcObj = Builder.CreateLoad(SrcObj); |
Mike Stump | 1edf6b6 | 2009-03-07 02:53:18 +0000 | [diff] [blame] | 960 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 961 | for (unsigned i=0; i < NoteForHelper.size(); ++i) { |
| 962 | int flag = NoteForHelper[i].flag; |
| 963 | int index = NoteForHelper[i].index; |
Mike Stump | 1edf6b6 | 2009-03-07 02:53:18 +0000 | [diff] [blame] | 964 | |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 965 | if ((NoteForHelper[i].flag & BLOCK_FIELD_IS_BYREF) |
| 966 | || NoteForHelper[i].RequiresCopying) { |
| 967 | llvm::Value *Srcv = SrcObj; |
| 968 | Srcv = Builder.CreateStructGEP(Srcv, index); |
| 969 | Srcv = Builder.CreateBitCast(Srcv, |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 970 | llvm::PointerType::get(PtrToInt8Ty, 0)); |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 971 | Srcv = Builder.CreateLoad(Srcv); |
| 972 | |
| 973 | BuildBlockRelease(Srcv, flag); |
| 974 | } |
Mike Stump | 1edf6b6 | 2009-03-07 02:53:18 +0000 | [diff] [blame] | 975 | } |
| 976 | } |
| 977 | |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 978 | CGF.FinishFunction(); |
| 979 | |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 980 | return llvm::ConstantExpr::getBitCast(Fn, PtrToInt8Ty); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 981 | } |
| 982 | |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 983 | llvm::Constant *BlockFunction::BuildCopyHelper(const llvm::StructType *T, |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 984 | std::vector<HelperInfo> *NoteForHelper) { |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 985 | return CodeGenFunction(CGM).GenerateCopyHelperFunction(BlockHasCopyDispose, |
| 986 | T, NoteForHelper); |
Mike Stump | a4f668f | 2009-03-06 01:33:24 +0000 | [diff] [blame] | 987 | } |
| 988 | |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 989 | llvm::Constant *BlockFunction::BuildDestroyHelper(const llvm::StructType *T, |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 990 | std::vector<HelperInfo> *NoteForHelperp) { |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 991 | return CodeGenFunction(CGM).GenerateDestroyHelperFunction(BlockHasCopyDispose, |
Mike Stump | b7477cf | 2009-04-10 18:52:28 +0000 | [diff] [blame] | 992 | T, NoteForHelperp); |
Mike Stump | dab514f | 2009-03-04 03:23:46 +0000 | [diff] [blame] | 993 | } |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 994 | |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 995 | llvm::Constant *BlockFunction:: |
| 996 | GeneratebyrefCopyHelperFunction(const llvm::Type *T, int flag) { |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 997 | QualType R = getContext().VoidTy; |
| 998 | |
| 999 | FunctionArgList Args; |
| 1000 | // FIXME: This leaks |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1001 | ImplicitParamDecl *Dst = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 1002 | ImplicitParamDecl::Create(getContext(), 0, |
| 1003 | SourceLocation(), 0, |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1004 | getContext().getPointerType(getContext().VoidTy)); |
| 1005 | Args.push_back(std::make_pair(Dst, Dst->getType())); |
| 1006 | |
| 1007 | // FIXME: This leaks |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1008 | ImplicitParamDecl *Src = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 1009 | ImplicitParamDecl::Create(getContext(), 0, |
| 1010 | SourceLocation(), 0, |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1011 | getContext().getPointerType(getContext().VoidTy)); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1012 | Args.push_back(std::make_pair(Src, Src->getType())); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1013 | |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1014 | const CGFunctionInfo &FI = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 1015 | CGM.getTypes().getFunctionInfo(R, Args, FunctionType::ExtInfo()); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1016 | |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1017 | CodeGenTypes &Types = CGM.getTypes(); |
| 1018 | const llvm::FunctionType *LTy = Types.GetFunctionType(FI, false); |
| 1019 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1020 | // FIXME: We'd like to put these into a mergable by content, with |
| 1021 | // internal linkage. |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1022 | llvm::Function *Fn = |
| 1023 | llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 1024 | "__Block_byref_id_object_copy_", &CGM.getModule()); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1025 | |
| 1026 | IdentifierInfo *II |
| 1027 | = &CGM.getContext().Idents.get("__Block_byref_id_object_copy_"); |
| 1028 | |
| 1029 | FunctionDecl *FD = FunctionDecl::Create(getContext(), |
| 1030 | getContext().getTranslationUnitDecl(), |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 1031 | SourceLocation(), II, R, 0, |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1032 | FunctionDecl::Static, |
| 1033 | FunctionDecl::None, |
| 1034 | false, true); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1035 | CGF.StartFunction(FD, R, Fn, Args, SourceLocation()); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1036 | |
| 1037 | // dst->x |
| 1038 | llvm::Value *V = CGF.GetAddrOfLocalVar(Dst); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1039 | V = Builder.CreateBitCast(V, llvm::PointerType::get(T, 0)); |
Mike Stump | c2f4c34 | 2009-04-15 22:11:36 +0000 | [diff] [blame] | 1040 | V = Builder.CreateLoad(V); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1041 | V = Builder.CreateStructGEP(V, 6, "x"); |
| 1042 | llvm::Value *DstObj = Builder.CreateBitCast(V, PtrToInt8Ty); |
| 1043 | |
| 1044 | // src->x |
| 1045 | V = CGF.GetAddrOfLocalVar(Src); |
| 1046 | V = Builder.CreateLoad(V); |
| 1047 | V = Builder.CreateBitCast(V, T); |
| 1048 | V = Builder.CreateStructGEP(V, 6, "x"); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1049 | V = Builder.CreateBitCast(V, llvm::PointerType::get(PtrToInt8Ty, 0)); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1050 | llvm::Value *SrcObj = Builder.CreateLoad(V); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1051 | |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1052 | flag |= BLOCK_BYREF_CALLER; |
| 1053 | |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1054 | llvm::Value *N = llvm::ConstantInt::get( |
| 1055 | llvm::Type::getInt32Ty(T->getContext()), flag); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1056 | llvm::Value *F = getBlockObjectAssign(); |
| 1057 | Builder.CreateCall3(F, DstObj, SrcObj, N); |
| 1058 | |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1059 | CGF.FinishFunction(); |
| 1060 | |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1061 | return llvm::ConstantExpr::getBitCast(Fn, PtrToInt8Ty); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1062 | } |
| 1063 | |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1064 | llvm::Constant * |
| 1065 | BlockFunction::GeneratebyrefDestroyHelperFunction(const llvm::Type *T, |
| 1066 | int flag) { |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1067 | QualType R = getContext().VoidTy; |
| 1068 | |
| 1069 | FunctionArgList Args; |
| 1070 | // FIXME: This leaks |
| 1071 | ImplicitParamDecl *Src = |
Mike Stump | ea26cb5 | 2009-10-21 03:49:08 +0000 | [diff] [blame] | 1072 | ImplicitParamDecl::Create(getContext(), 0, |
| 1073 | SourceLocation(), 0, |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1074 | getContext().getPointerType(getContext().VoidTy)); |
| 1075 | |
| 1076 | Args.push_back(std::make_pair(Src, Src->getType())); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 1077 | |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1078 | const CGFunctionInfo &FI = |
Rafael Espindola | 264ba48 | 2010-03-30 20:24:48 +0000 | [diff] [blame] | 1079 | CGM.getTypes().getFunctionInfo(R, Args, FunctionType::ExtInfo()); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1080 | |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1081 | CodeGenTypes &Types = CGM.getTypes(); |
| 1082 | const llvm::FunctionType *LTy = Types.GetFunctionType(FI, false); |
| 1083 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1084 | // FIXME: We'd like to put these into a mergable by content, with |
| 1085 | // internal linkage. |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1086 | llvm::Function *Fn = |
| 1087 | llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage, |
Benjamin Kramer | 3cf7c5d | 2010-01-22 13:59:13 +0000 | [diff] [blame] | 1088 | "__Block_byref_id_object_dispose_", |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1089 | &CGM.getModule()); |
| 1090 | |
| 1091 | IdentifierInfo *II |
| 1092 | = &CGM.getContext().Idents.get("__Block_byref_id_object_dispose_"); |
| 1093 | |
| 1094 | FunctionDecl *FD = FunctionDecl::Create(getContext(), |
| 1095 | getContext().getTranslationUnitDecl(), |
Argyrios Kyrtzidis | a1d5662 | 2009-08-19 01:27:57 +0000 | [diff] [blame] | 1096 | SourceLocation(), II, R, 0, |
Douglas Gregor | 16573fa | 2010-04-19 22:54:31 +0000 | [diff] [blame] | 1097 | FunctionDecl::Static, |
| 1098 | FunctionDecl::None, |
| 1099 | false, true); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1100 | CGF.StartFunction(FD, R, Fn, Args, SourceLocation()); |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1101 | |
| 1102 | llvm::Value *V = CGF.GetAddrOfLocalVar(Src); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1103 | V = Builder.CreateBitCast(V, llvm::PointerType::get(T, 0)); |
Mike Stump | c2f4c34 | 2009-04-15 22:11:36 +0000 | [diff] [blame] | 1104 | V = Builder.CreateLoad(V); |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1105 | V = Builder.CreateStructGEP(V, 6, "x"); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1106 | V = Builder.CreateBitCast(V, llvm::PointerType::get(PtrToInt8Ty, 0)); |
Mike Stump | c2f4c34 | 2009-04-15 22:11:36 +0000 | [diff] [blame] | 1107 | V = Builder.CreateLoad(V); |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1108 | |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1109 | flag |= BLOCK_BYREF_CALLER; |
| 1110 | BuildBlockRelease(V, flag); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1111 | CGF.FinishFunction(); |
| 1112 | |
Owen Anderson | 3c4972d | 2009-07-29 18:54:39 +0000 | [diff] [blame] | 1113 | return llvm::ConstantExpr::getBitCast(Fn, PtrToInt8Ty); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1114 | } |
| 1115 | |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1116 | llvm::Constant *BlockFunction::BuildbyrefCopyHelper(const llvm::Type *T, |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1117 | int Flag, unsigned Align) { |
| 1118 | // All alignments below that of pointer alignment collapse down to just |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1119 | // pointer alignment, as we always have at least that much alignment to begin |
| 1120 | // with. |
| 1121 | Align /= unsigned(CGF.Target.getPointerAlign(0)/8); |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1122 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1123 | // As an optimization, we only generate a single function of each kind we |
| 1124 | // might need. We need a different one for each alignment and for each |
| 1125 | // setting of flags. We mix Align and flag to get the kind. |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1126 | uint64_t Kind = (uint64_t)Align*BLOCK_BYREF_CURRENT_MAX + Flag; |
| 1127 | llvm::Constant *&Entry = CGM.AssignCache[Kind]; |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1128 | if (Entry) |
| 1129 | return Entry; |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1130 | return Entry = CodeGenFunction(CGM).GeneratebyrefCopyHelperFunction(T, Flag); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1131 | } |
| 1132 | |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1133 | llvm::Constant *BlockFunction::BuildbyrefDestroyHelper(const llvm::Type *T, |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1134 | int Flag, |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1135 | unsigned Align) { |
| 1136 | // All alignments below that of pointer alignment collpase down to just |
| 1137 | // pointer alignment, as we always have at least that much alignment to begin |
| 1138 | // with. |
| 1139 | Align /= unsigned(CGF.Target.getPointerAlign(0)/8); |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1140 | |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1141 | // As an optimization, we only generate a single function of each kind we |
| 1142 | // might need. We need a different one for each alignment and for each |
| 1143 | // setting of flags. We mix Align and flag to get the kind. |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1144 | uint64_t Kind = (uint64_t)Align*BLOCK_BYREF_CURRENT_MAX + Flag; |
| 1145 | llvm::Constant *&Entry = CGM.DestroyCache[Kind]; |
Mike Stump | 3899a7f | 2009-06-05 23:26:36 +0000 | [diff] [blame] | 1146 | if (Entry) |
| 1147 | return Entry; |
Chris Lattner | 10976d9 | 2009-12-05 08:21:30 +0000 | [diff] [blame] | 1148 | return Entry=CodeGenFunction(CGM).GeneratebyrefDestroyHelperFunction(T, Flag); |
Mike Stump | 45031c0 | 2009-03-06 02:29:21 +0000 | [diff] [blame] | 1149 | } |
| 1150 | |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1151 | llvm::Value *BlockFunction::getBlockObjectDispose() { |
| 1152 | if (CGM.BlockObjectDispose == 0) { |
| 1153 | const llvm::FunctionType *FTy; |
| 1154 | std::vector<const llvm::Type*> ArgTys; |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1155 | const llvm::Type *ResultType = llvm::Type::getVoidTy(VMContext); |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1156 | ArgTys.push_back(PtrToInt8Ty); |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1157 | ArgTys.push_back(llvm::Type::getInt32Ty(VMContext)); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1158 | FTy = llvm::FunctionType::get(ResultType, ArgTys, false); |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 1159 | CGM.BlockObjectDispose |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1160 | = CGM.CreateRuntimeFunction(FTy, "_Block_object_dispose"); |
| 1161 | } |
| 1162 | return CGM.BlockObjectDispose; |
| 1163 | } |
| 1164 | |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1165 | llvm::Value *BlockFunction::getBlockObjectAssign() { |
| 1166 | if (CGM.BlockObjectAssign == 0) { |
| 1167 | const llvm::FunctionType *FTy; |
| 1168 | std::vector<const llvm::Type*> ArgTys; |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1169 | const llvm::Type *ResultType = llvm::Type::getVoidTy(VMContext); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1170 | ArgTys.push_back(PtrToInt8Ty); |
| 1171 | ArgTys.push_back(PtrToInt8Ty); |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1172 | ArgTys.push_back(llvm::Type::getInt32Ty(VMContext)); |
Owen Anderson | 96e0fc7 | 2009-07-29 22:16:19 +0000 | [diff] [blame] | 1173 | FTy = llvm::FunctionType::get(ResultType, ArgTys, false); |
Mike Stump | ee09422 | 2009-03-06 06:12:24 +0000 | [diff] [blame] | 1174 | CGM.BlockObjectAssign |
| 1175 | = CGM.CreateRuntimeFunction(FTy, "_Block_object_assign"); |
| 1176 | } |
| 1177 | return CGM.BlockObjectAssign; |
| 1178 | } |
| 1179 | |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1180 | void BlockFunction::BuildBlockRelease(llvm::Value *V, int flag) { |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1181 | llvm::Value *F = getBlockObjectDispose(); |
Mike Stump | 1851b68 | 2009-03-06 04:53:30 +0000 | [diff] [blame] | 1182 | llvm::Value *N; |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1183 | V = Builder.CreateBitCast(V, PtrToInt8Ty); |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1184 | N = llvm::ConstantInt::get(llvm::Type::getInt32Ty(V->getContext()), flag); |
Mike Stump | 797b632 | 2009-03-05 01:23:13 +0000 | [diff] [blame] | 1185 | Builder.CreateCall2(F, V, N); |
| 1186 | } |
Mike Stump | 00470a1 | 2009-03-05 08:32:30 +0000 | [diff] [blame] | 1187 | |
| 1188 | ASTContext &BlockFunction::getContext() const { return CGM.getContext(); } |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 1189 | |
| 1190 | BlockFunction::BlockFunction(CodeGenModule &cgm, CodeGenFunction &cgf, |
| 1191 | CGBuilderTy &B) |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 1192 | : CGM(cgm), CGF(cgf), VMContext(cgm.getLLVMContext()), Builder(B) { |
Owen Anderson | 0032b27 | 2009-08-13 21:57:51 +0000 | [diff] [blame] | 1193 | PtrToInt8Ty = llvm::PointerType::getUnqual( |
| 1194 | llvm::Type::getInt8Ty(VMContext)); |
Mike Stump | 0892099 | 2009-03-07 02:35:30 +0000 | [diff] [blame] | 1195 | |
| 1196 | BlockHasCopyDispose = false; |
| 1197 | } |