CGObjC.cpp revision f5408fe484495ee4efbdd709c8a2c2fdbbbdb328
15508518a2702b00be3b15a26d772bde968972f54Anders Carlsson//===---- CGBuiltin.cpp - Emit LLVM Code for builtins ---------------------===// 25508518a2702b00be3b15a26d772bde968972f54Anders Carlsson// 35508518a2702b00be3b15a26d772bde968972f54Anders Carlsson// The LLVM Compiler Infrastructure 45508518a2702b00be3b15a26d772bde968972f54Anders Carlsson// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75508518a2702b00be3b15a26d772bde968972f54Anders Carlsson// 85508518a2702b00be3b15a26d772bde968972f54Anders Carlsson//===----------------------------------------------------------------------===// 95508518a2702b00be3b15a26d772bde968972f54Anders Carlsson// 105508518a2702b00be3b15a26d772bde968972f54Anders Carlsson// This contains code to emit Objective-C code as LLVM code. 115508518a2702b00be3b15a26d772bde968972f54Anders Carlsson// 125508518a2702b00be3b15a26d772bde968972f54Anders Carlsson//===----------------------------------------------------------------------===// 135508518a2702b00be3b15a26d772bde968972f54Anders Carlsson 142979ec73b4f974d85f2ce84167712177a44c6f09Ted Kremenek#include "CGObjCRuntime.h" 155508518a2702b00be3b15a26d772bde968972f54Anders Carlsson#include "CodeGenFunction.h" 165508518a2702b00be3b15a26d772bde968972f54Anders Carlsson#include "CodeGenModule.h" 1785c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar#include "clang/AST/ASTContext.h" 18c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar#include "clang/AST/DeclObjC.h" 1916f0049415ec596504891259e2a83e19871c0d52Chris Lattner#include "clang/AST/StmtObjC.h" 20e66f4e3e3ae9d7d11b0c302211066fad69228abaDaniel Dunbar#include "clang/Basic/Diagnostic.h" 213d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson#include "llvm/ADT/STLExtras.h" 22c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar#include "llvm/Target/TargetData.h" 235508518a2702b00be3b15a26d772bde968972f54Anders Carlssonusing namespace clang; 245508518a2702b00be3b15a26d772bde968972f54Anders Carlssonusing namespace CodeGen; 255508518a2702b00be3b15a26d772bde968972f54Anders Carlsson 268fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner/// Emits an instance of NSConstantString representing the object. 2771fcec9abf2ce66d5e17a24bd021680e94e42f0dDaniel Dunbarllvm::Value *CodeGenFunction::EmitObjCStringLiteral(const ObjCStringLiteral *E) 2871fcec9abf2ce66d5e17a24bd021680e94e42f0dDaniel Dunbar{ 2933fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff llvm::Constant *C = CGM.getObjCRuntime().GenerateConstantString(E); 30ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar // FIXME: This bitcast should just be made an invariant on the Runtime. 31bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbar return llvm::ConstantExpr::getBitCast(C, ConvertType(E->getType())); 328fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner} 338fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 348fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner/// Emit a selector. 358fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattnerllvm::Value *CodeGenFunction::EmitObjCSelectorExpr(const ObjCSelectorExpr *E) { 368fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // Untyped selector. 378fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // Note that this implementation allows for non-constant strings to be passed 388fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // as arguments to @selector(). Currently, the only thing preventing this 398fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // behaviour is the type checking in the front end. 40208ff5e8a073de2a5d15cbe03cab8a4c0d935e28Daniel Dunbar return CGM.getObjCRuntime().GetSelector(Builder, E->getSelector()); 418fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner} 428fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 43ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbarllvm::Value *CodeGenFunction::EmitObjCProtocolExpr(const ObjCProtocolExpr *E) { 44ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar // FIXME: This should pass the Decl not the name. 45ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar return CGM.getObjCRuntime().GenerateProtocolRef(Builder, E->getProtocol()); 46ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar} 478fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 488fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 498f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarRValue CodeGenFunction::EmitObjCMessageExpr(const ObjCMessageExpr *E) { 508fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // Only the lookup mechanism and first two arguments of the method 518fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // implementation vary between runtimes. We can get the receiver and 528fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // arguments in generic code. 538fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 54208ff5e8a073de2a5d15cbe03cab8a4c0d935e28Daniel Dunbar CGObjCRuntime &Runtime = CGM.getObjCRuntime(); 558fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner const Expr *ReceiverExpr = E->getReceiver(); 568fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner bool isSuperMessage = false; 57f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar bool isClassMessage = false; 588fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // Find the receiver 598fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *Receiver; 608fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner if (!ReceiverExpr) { 61ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar const ObjCInterfaceDecl *OID = E->getClassInfo().first; 62ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar 63ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar // Very special case, super send in class method. The receiver is 64ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar // self (the class object) and the send uses super semantics. 65ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar if (!OID) { 6692e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner assert(E->getClassName()->isStr("super") && 67ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar "Unexpected missing class interface in message send."); 68ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar isSuperMessage = true; 69f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar Receiver = LoadObjCSelf(); 70f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar } else { 71f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar Receiver = Runtime.GetClass(Builder, OID); 728fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner } 73f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar 74f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar isClassMessage = true; 75cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor } else if (isa<ObjCSuperExpr>(E->getReceiver())) { 768fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner isSuperMessage = true; 778fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner Receiver = LoadObjCSelf(); 788fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner } else { 792bedbf8549bb33293c6a53e5da6cbd8de290d014Daniel Dunbar Receiver = EmitScalarExpr(E->getReceiver()); 808fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner } 818fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 8219cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CallArgList Args; 83131038e2125d98f1be0d9cb62561a7cede41bb44Anders Carlsson EmitCallArgs(Args, E->getMethodDecl(), E->arg_begin(), E->arg_end()); 8419cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar 858fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner if (isSuperMessage) { 869384c768e93f270118a30ce96546083a666da284Chris Lattner // super is only valid in an Objective-C method 879384c768e93f270118a30ce96546083a666da284Chris Lattner const ObjCMethodDecl *OMD = cast<ObjCMethodDecl>(CurFuncDecl); 887ce77920a35060f1c8dd72e541e42ce296ccd168Fariborz Jahanian bool isCategoryImpl = isa<ObjCCategoryImplDecl>(OMD->getDeclContext()); 897f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar return Runtime.GenerateMessageSendSuper(*this, E->getType(), 907f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar E->getSelector(), 91f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar OMD->getClassInterface(), 927ce77920a35060f1c8dd72e541e42ce296ccd168Fariborz Jahanian isCategoryImpl, 93f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar Receiver, 9419cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar isClassMessage, 9519cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar Args); 968fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner } 977f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar return Runtime.GenerateMessageSend(*this, E->getType(), E->getSelector(), 98df9ccc6381314ccca6407abb209155e9273a631dFariborz Jahanian Receiver, isClassMessage, Args, 99df9ccc6381314ccca6407abb209155e9273a631dFariborz Jahanian E->getMethodDecl()); 1005508518a2702b00be3b15a26d772bde968972f54Anders Carlsson} 1015508518a2702b00be3b15a26d772bde968972f54Anders Carlsson 102af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// StartObjCMethod - Begin emission of an ObjCMethod. This generates 103af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// the LLVM function and sets the other context used by 104af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// CodeGenFunction. 105679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanianvoid CodeGenFunction::StartObjCMethod(const ObjCMethodDecl *OMD, 106679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD) { 1077c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar FunctionArgList Args; 108679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian llvm::Function *Fn = CGM.getObjCRuntime().GenerateMethod(OMD, CD); 109f80519b919a348db004fba18530706314d1ebfb5Daniel Dunbar 1100e4f40e1bbc4dce16bbb9870300a435419f1b3d5Daniel Dunbar const CGFunctionInfo &FI = CGM.getTypes().getFunctionInfo(OMD); 1110e4f40e1bbc4dce16bbb9870300a435419f1b3d5Daniel Dunbar CGM.SetInternalFunctionAttributes(OMD, Fn, FI); 1124111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 1137c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar Args.push_back(std::make_pair(OMD->getSelfDecl(), 1147c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar OMD->getSelfDecl()->getType())); 1157c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar Args.push_back(std::make_pair(OMD->getCmdDecl(), 1167c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar OMD->getCmdDecl()->getType())); 1174111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 11889951a86b594513c2a013532ed45d197413b1087Chris Lattner for (ObjCMethodDecl::param_iterator PI = OMD->param_begin(), 11989951a86b594513c2a013532ed45d197413b1087Chris Lattner E = OMD->param_end(); PI != E; ++PI) 12089951a86b594513c2a013532ed45d197413b1087Chris Lattner Args.push_back(std::make_pair(*PI, (*PI)->getType())); 121b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 1222284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar StartFunction(OMD, OMD->getResultType(), Fn, Args, OMD->getLocEnd()); 123af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar} 124af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 125af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// Generate an Objective-C method. An Objective-C method is a C function with 126af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// its pointer, name, and types registered in the class struture. 127af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbarvoid CodeGenFunction::GenerateObjCMethod(const ObjCMethodDecl *OMD) { 1281d6a451ceed4bd654462040bd8e880f69649ee9aDevang Patel // Check if we should generate debug info for this method. 129b11fa0d25d86169f0e0a29d5398116c0212bb787Daniel Dunbar if (CGM.getDebugInfo() && !OMD->hasAttr<NodebugAttr>()) 1301d6a451ceed4bd654462040bd8e880f69649ee9aDevang Patel DebugInfo = CGM.getDebugInfo(); 131679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian StartObjCMethod(OMD, OMD->getClassInterface()); 1327297134f128423fce2e88f92421ed135bded7d4eDouglas Gregor EmitStmt(OMD->getBody(getContext())); 133d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl FinishFunction(OMD->getBodyRBrace(getContext())); 134af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar} 135af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 136f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump// FIXME: I wasn't sure about the synthesis approach. If we end up generating an 137f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump// AST for the whole body we can just fall back to having a GenerateFunction 138f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump// which takes the body Stmt. 139af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 140af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// GenerateObjCGetter - Generate an Objective-C property getter 141489034cf8bde09360e0089f401b2929597b125d8Steve Naroff/// function. The given Decl must be an ObjCImplementationDecl. @synthesize 142489034cf8bde09360e0089f401b2929597b125d8Steve Naroff/// is illegal within a category. 143fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanianvoid CodeGenFunction::GenerateObjCGetter(ObjCImplementationDecl *IMP, 144fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID) { 145c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar ObjCIvarDecl *Ivar = PID->getPropertyIvarDecl(); 146af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar const ObjCPropertyDecl *PD = PID->getPropertyDecl(); 147af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar ObjCMethodDecl *OMD = PD->getGetterMethodDecl(); 148af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar assert(OMD && "Invalid call to generate getter (empty method)"); 149f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump // FIXME: This is rather murky, we create this here since they will not have 150f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump // been created by Sema for us. 151fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian OMD->createImplicitParams(getContext(), IMP->getClassInterface()); 152679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian StartObjCMethod(OMD, IMP->getClassInterface()); 153af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 154c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // Determine if we should use an objc_getProperty call for 155447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian // this. Non-atomic properties are directly evaluated. 156447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian // atomic 'copy' and 'retain' properties are also directly 157447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian // evaluated in gc-only mode. 158c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar if (CGM.getLangOptions().getGCMode() != LangOptions::GCOnly && 159447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian !(PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) && 160447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian (PD->getSetterKind() == ObjCPropertyDecl::Copy || 161447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian PD->getSetterKind() == ObjCPropertyDecl::Retain)) { 162c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar llvm::Value *GetPropertyFn = 163c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CGM.getObjCRuntime().GetPropertyGetFunction(); 164c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar 165c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar if (!GetPropertyFn) { 166c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CGM.ErrorUnsupported(PID, "Obj-C getter requiring atomic copy"); 167c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar FinishFunction(); 168c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar return; 169c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar } 170c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar 171c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // Return (ivar-type) objc_getProperty((id) self, _cmd, offset, true). 172c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // FIXME: Can't this be simpler? This might even be worse than the 173c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // corresponding gcc code. 174c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CodeGenTypes &Types = CGM.getTypes(); 175c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar ValueDecl *Cmd = OMD->getCmdDecl(); 176c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar llvm::Value *CmdVal = Builder.CreateLoad(LocalDeclMap[Cmd], "cmd"); 177c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar QualType IdTy = getContext().getObjCIdType(); 178c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar llvm::Value *SelfAsId = 179c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Builder.CreateBitCast(LoadObjCSelf(), Types.ConvertType(IdTy)); 180fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian llvm::Value *Offset = EmitIvarOffset(IMP->getClassInterface(), Ivar); 181c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar llvm::Value *True = 182be395f6b29762c37938637ffef5f59514e04751aDaniel Dunbar llvm::ConstantInt::get(Types.ConvertType(getContext().BoolTy), 1); 183c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CallArgList Args; 184c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Args.push_back(std::make_pair(RValue::get(SelfAsId), IdTy)); 185c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Args.push_back(std::make_pair(RValue::get(CmdVal), Cmd->getType())); 186c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Args.push_back(std::make_pair(RValue::get(Offset), getContext().LongTy)); 187c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Args.push_back(std::make_pair(RValue::get(True), getContext().BoolTy)); 188e4be5a66072f7c7618071284c8d2a9c6d8e691cfDaniel Dunbar // FIXME: We shouldn't need to get the function info here, the 189e4be5a66072f7c7618071284c8d2a9c6d8e691cfDaniel Dunbar // runtime already should have computed it to build the function. 190541b63b1a9db77e4a8670e9823711c2c12e58afbDaniel Dunbar RValue RV = EmitCall(Types.getFunctionInfo(PD->getType(), Args), 19188b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar GetPropertyFn, Args); 192c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // We need to fix the type here. Ivars with copy & retain are 193c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // always objects so we don't need to worry about complex or 194c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // aggregates. 195c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar RV = RValue::get(Builder.CreateBitCast(RV.getScalarVal(), 196c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Types.ConvertType(PD->getType()))); 197c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar EmitReturnOfRValue(RV, PD->getType()); 198c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar } else { 199525c9b7baeeff022127cd1b167579f3bda73b3edDaniel Dunbar LValue LV = EmitLValueForIvar(TypeOfSelfObject(), LoadObjCSelf(), Ivar, 0); 2006010bca98a617a40951561c380a89afd261fb0acFariborz Jahanian if (hasAggregateLLVMType(Ivar->getType())) { 2016010bca98a617a40951561c380a89afd261fb0acFariborz Jahanian EmitAggregateCopy(ReturnValue, LV.getAddress(), Ivar->getType()); 2026010bca98a617a40951561c380a89afd261fb0acFariborz Jahanian } 203ed1d29d62595a83ccf6ef23eb2759d355206df2eFariborz Jahanian else { 204ed1d29d62595a83ccf6ef23eb2759d355206df2eFariborz Jahanian CodeGenTypes &Types = CGM.getTypes(); 205ed1d29d62595a83ccf6ef23eb2759d355206df2eFariborz Jahanian RValue RV = EmitLoadOfLValue(LV, Ivar->getType()); 206ed1d29d62595a83ccf6ef23eb2759d355206df2eFariborz Jahanian RV = RValue::get(Builder.CreateBitCast(RV.getScalarVal(), 207ed1d29d62595a83ccf6ef23eb2759d355206df2eFariborz Jahanian Types.ConvertType(PD->getType()))); 208ed1d29d62595a83ccf6ef23eb2759d355206df2eFariborz Jahanian EmitReturnOfRValue(RV, PD->getType()); 209ed1d29d62595a83ccf6ef23eb2759d355206df2eFariborz Jahanian } 210c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar } 211af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 212af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar FinishFunction(); 213af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar} 214af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 215af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// GenerateObjCSetter - Generate an Objective-C property setter 216489034cf8bde09360e0089f401b2929597b125d8Steve Naroff/// function. The given Decl must be an ObjCImplementationDecl. @synthesize 217489034cf8bde09360e0089f401b2929597b125d8Steve Naroff/// is illegal within a category. 218fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanianvoid CodeGenFunction::GenerateObjCSetter(ObjCImplementationDecl *IMP, 219fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID) { 22086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar ObjCIvarDecl *Ivar = PID->getPropertyIvarDecl(); 221af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar const ObjCPropertyDecl *PD = PID->getPropertyDecl(); 222af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar ObjCMethodDecl *OMD = PD->getSetterMethodDecl(); 223af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar assert(OMD && "Invalid call to generate setter (empty method)"); 224f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump // FIXME: This is rather murky, we create this here since they will not have 225f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump // been created by Sema for us. 226fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian OMD->createImplicitParams(getContext(), IMP->getClassInterface()); 227679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian StartObjCMethod(OMD, IMP->getClassInterface()); 228b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 22986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar bool IsCopy = PD->getSetterKind() == ObjCPropertyDecl::Copy; 23086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar bool IsAtomic = 23186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar !(PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic); 23286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar 23386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // Determine if we should use an objc_setProperty call for 23486957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // this. Properties with 'copy' semantics always use it, as do 23586957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // non-atomic properties with 'release' semantics as long as we are 23686957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // not in gc-only mode. 23786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar if (IsCopy || 23886957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar (CGM.getLangOptions().getGCMode() != LangOptions::GCOnly && 23986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar PD->getSetterKind() == ObjCPropertyDecl::Retain)) { 24086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *SetPropertyFn = 24186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar CGM.getObjCRuntime().GetPropertySetFunction(); 24286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar 24386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar if (!SetPropertyFn) { 24486957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar CGM.ErrorUnsupported(PID, "Obj-C getter requiring atomic copy"); 24586957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar FinishFunction(); 24686957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar return; 24786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar } 24886957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar 24986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // Emit objc_setProperty((id) self, _cmd, offset, arg, 25086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // <is-atomic>, <is-copy>). 25186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // FIXME: Can't this be simpler? This might even be worse than the 25286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // corresponding gcc code. 25386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar CodeGenTypes &Types = CGM.getTypes(); 25486957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar ValueDecl *Cmd = OMD->getCmdDecl(); 25586957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *CmdVal = Builder.CreateLoad(LocalDeclMap[Cmd], "cmd"); 25686957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar QualType IdTy = getContext().getObjCIdType(); 25786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *SelfAsId = 25886957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Builder.CreateBitCast(LoadObjCSelf(), Types.ConvertType(IdTy)); 259fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian llvm::Value *Offset = EmitIvarOffset(IMP->getClassInterface(), Ivar); 26089951a86b594513c2a013532ed45d197413b1087Chris Lattner llvm::Value *Arg = LocalDeclMap[*OMD->param_begin()]; 26186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *ArgAsId = 26286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Builder.CreateBitCast(Builder.CreateLoad(Arg, "arg"), 26386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Types.ConvertType(IdTy)); 26486957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *True = 265be395f6b29762c37938637ffef5f59514e04751aDaniel Dunbar llvm::ConstantInt::get(Types.ConvertType(getContext().BoolTy), 1); 26686957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *False = 267be395f6b29762c37938637ffef5f59514e04751aDaniel Dunbar llvm::ConstantInt::get(Types.ConvertType(getContext().BoolTy), 0); 26886957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar CallArgList Args; 26986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(SelfAsId), IdTy)); 27086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(CmdVal), Cmd->getType())); 27186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(Offset), getContext().LongTy)); 27286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(ArgAsId), IdTy)); 27386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(IsAtomic ? True : False), 27486957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar getContext().BoolTy)); 27586957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(IsCopy ? True : False), 27686957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar getContext().BoolTy)); 277f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump // FIXME: We shouldn't need to get the function info here, the runtime 278f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump // already should have computed it to build the function. 279e4be5a66072f7c7618071284c8d2a9c6d8e691cfDaniel Dunbar EmitCall(Types.getFunctionInfo(getContext().VoidTy, Args), 280541b63b1a9db77e4a8670e9823711c2c12e58afbDaniel Dunbar SetPropertyFn, Args); 28186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar } else { 28286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar SourceLocation Loc = PD->getLocation(); 28386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar ValueDecl *Self = OMD->getSelfDecl(); 28486957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar ObjCIvarDecl *Ivar = PID->getPropertyIvarDecl(); 28586957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar DeclRefExpr Base(Self, Self->getType(), Loc); 28689951a86b594513c2a013532ed45d197413b1087Chris Lattner ParmVarDecl *ArgDecl = *OMD->param_begin(); 28786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar DeclRefExpr Arg(ArgDecl, ArgDecl->getType(), Loc); 288efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian ObjCIvarRefExpr IvarRef(Ivar, Ivar->getType(), Loc, &Base, 28986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar true, true); 29086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar BinaryOperator Assign(&IvarRef, &Arg, BinaryOperator::Assign, 29186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Ivar->getType(), Loc); 29286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar EmitStmt(&Assign); 29386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar } 294af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 295af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar FinishFunction(); 2964111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner} 2974111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 298c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbarllvm::Value *CodeGenFunction::LoadObjCSelf() { 299b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar const ObjCMethodDecl *OMD = cast<ObjCMethodDecl>(CurFuncDecl); 3006cc88f78fd36d3511b89412b193494b3e423cbffMike Stump // See if we need to lazily forward self inside a block literal. 3016cc88f78fd36d3511b89412b193494b3e423cbffMike Stump BlockForwardSelf(); 302b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar return Builder.CreateLoad(LocalDeclMap[OMD->getSelfDecl()], "self"); 3034111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner} 3044111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 30545012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz JahanianQualType CodeGenFunction::TypeOfSelfObject() { 30645012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian const ObjCMethodDecl *OMD = cast<ObjCMethodDecl>(CurFuncDecl); 30745012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian ImplicitParamDecl *selfDecl = OMD->getSelfDecl(); 30845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian const PointerType *PTy = 30945012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian cast<PointerType>(getContext().getCanonicalType(selfDecl->getType())); 31045012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian return PTy->getPointeeType(); 31145012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian} 31245012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian 313f469557743f77918d2ca8226e2ee2888998ffd4aFariborz JahanianRValue CodeGenFunction::EmitObjCSuperPropertyGet(const Expr *Exp, 314f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian const Selector &S) { 315f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian llvm::Value *Receiver = LoadObjCSelf(); 316f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian const ObjCMethodDecl *OMD = cast<ObjCMethodDecl>(CurFuncDecl); 317f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian bool isClassMessage = OMD->isClassMethod(); 318f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian bool isCategoryImpl = isa<ObjCCategoryImplDecl>(OMD->getDeclContext()); 319f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian return CGM.getObjCRuntime().GenerateMessageSendSuper(*this, 320f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian Exp->getType(), 321f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian S, 322f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian OMD->getClassInterface(), 323f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian isCategoryImpl, 324f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian Receiver, 325f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian isClassMessage, 326f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian CallArgList()); 327f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian 328f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian} 329f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian 3305daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz JahanianRValue CodeGenFunction::EmitObjCPropertyGet(const Expr *Exp) { 33143f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian // FIXME: Split it into two separate routines. 3325daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian if (const ObjCPropertyRefExpr *E = dyn_cast<ObjCPropertyRefExpr>(Exp)) { 3335daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian Selector S = E->getProperty()->getGetterName(); 334f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian if (isa<ObjCSuperExpr>(E->getBase())) 335f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian return EmitObjCSuperPropertyGet(E, S); 3365daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian return CGM.getObjCRuntime(). 33743f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian GenerateMessageSend(*this, Exp->getType(), S, 33843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian EmitScalarExpr(E->getBase()), 33943f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian false, CallArgList()); 34043f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian } 341f185319f25efd6094870f287030270fad26085baDaniel Dunbar else { 342f479cea608dae347bc06c7a7279ab54fe34d47f6Daniel Dunbar const ObjCKVCRefExpr *KE = cast<ObjCKVCRefExpr>(Exp); 343f479cea608dae347bc06c7a7279ab54fe34d47f6Daniel Dunbar Selector S = KE->getGetterMethod()->getSelector(); 3443523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian llvm::Value *Receiver; 3453523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian if (KE->getClassProp()) { 3463523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian const ObjCInterfaceDecl *OID = KE->getClassProp(); 3473523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian Receiver = CGM.getObjCRuntime().GetClass(Builder, OID); 3483523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian } 349f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian else if (isa<ObjCSuperExpr>(KE->getBase())) 350f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian return EmitObjCSuperPropertyGet(KE, S); 3513523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian else 3523523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian Receiver = EmitScalarExpr(KE->getBase()); 35343f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian return CGM.getObjCRuntime(). 35443f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian GenerateMessageSend(*this, Exp->getType(), S, 3553523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian Receiver, 3563523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian KE->getClassProp() != 0, CallArgList()); 3575daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian } 3589c3fc703b29a31d40bcf5027dbb4784dd393804eDaniel Dunbar} 3599c3fc703b29a31d40bcf5027dbb4784dd393804eDaniel Dunbar 360f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanianvoid CodeGenFunction::EmitObjCSuperPropertySet(const Expr *Exp, 361f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian const Selector &S, 362f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian RValue Src) { 363f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian CallArgList Args; 364f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian llvm::Value *Receiver = LoadObjCSelf(); 365f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian const ObjCMethodDecl *OMD = cast<ObjCMethodDecl>(CurFuncDecl); 366f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian bool isClassMessage = OMD->isClassMethod(); 367f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian bool isCategoryImpl = isa<ObjCCategoryImplDecl>(OMD->getDeclContext()); 368f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian Args.push_back(std::make_pair(Src, Exp->getType())); 369f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian CGM.getObjCRuntime().GenerateMessageSendSuper(*this, 370f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian Exp->getType(), 371f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian S, 372f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian OMD->getClassInterface(), 373f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian isCategoryImpl, 374f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian Receiver, 375f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian isClassMessage, 376f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian Args); 377f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian return; 378f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian} 379f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian 38043f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanianvoid CodeGenFunction::EmitObjCPropertySet(const Expr *Exp, 38185c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue Src) { 38243f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian // FIXME: Split it into two separate routines. 38343f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian if (const ObjCPropertyRefExpr *E = dyn_cast<ObjCPropertyRefExpr>(Exp)) { 38443f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian Selector S = E->getProperty()->getSetterName(); 385f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian if (isa<ObjCSuperExpr>(E->getBase())) { 386f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian EmitObjCSuperPropertySet(E, S, Src); 387f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian return; 388f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian } 38943f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian CallArgList Args; 39043f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian Args.push_back(std::make_pair(Src, E->getType())); 39143f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian CGM.getObjCRuntime().GenerateMessageSend(*this, getContext().VoidTy, S, 39243f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian EmitScalarExpr(E->getBase()), 39343f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian false, Args); 39443f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian } 39543f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian else if (const ObjCKVCRefExpr *E = dyn_cast<ObjCKVCRefExpr>(Exp)) { 39643f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian Selector S = E->getSetterMethod()->getSelector(); 39743f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian CallArgList Args; 3983523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian llvm::Value *Receiver; 3993523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian if (E->getClassProp()) { 4003523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian const ObjCInterfaceDecl *OID = E->getClassProp(); 4013523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian Receiver = CGM.getObjCRuntime().GetClass(Builder, OID); 4023523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian } 4038e5d23236ad05f9b18114d5486b3a3aeadf42e00Fariborz Jahanian else if (isa<ObjCSuperExpr>(E->getBase())) { 404f469557743f77918d2ca8226e2ee2888998ffd4aFariborz Jahanian EmitObjCSuperPropertySet(E, S, Src); 4058e5d23236ad05f9b18114d5486b3a3aeadf42e00Fariborz Jahanian return; 4068e5d23236ad05f9b18114d5486b3a3aeadf42e00Fariborz Jahanian } 4078e5d23236ad05f9b18114d5486b3a3aeadf42e00Fariborz Jahanian else 4083523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian Receiver = EmitScalarExpr(E->getBase()); 40943f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian Args.push_back(std::make_pair(Src, E->getType())); 41043f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian CGM.getObjCRuntime().GenerateMessageSend(*this, getContext().VoidTy, S, 4113523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian Receiver, 4123523d4f59eb0aa1f200dcb943093ecfe75008735Fariborz Jahanian E->getClassProp() != 0, Args); 41343f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian } 41443f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian else 41543f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian assert (0 && "bad expression node in EmitObjCPropertySet"); 41685c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar} 41785c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar 41874391b48b4791cded373683a3baf67314f358d50Chris Lattnervoid CodeGenFunction::EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S){ 41974391b48b4791cded373683a3baf67314f358d50Chris Lattner llvm::Constant *EnumerationMutationFn = 420c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CGM.getObjCRuntime().EnumerationMutationFunction(); 421f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *DeclAddress; 422f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson QualType ElementTy; 423f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 424c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar if (!EnumerationMutationFn) { 425c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CGM.ErrorUnsupported(&S, "Obj-C fast enumeration for this runtime"); 426c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar return; 427c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar } 428c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar 429f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson if (const DeclStmt *SD = dyn_cast<DeclStmt>(S.getElement())) { 430f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitStmt(SD); 431a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar assert(HaveInsertPoint() && "DeclStmt destroyed insert point!"); 4327e24e82a70a2c681f4291a3397bcd1e1005f251aChris Lattner const Decl* D = SD->getSingleDecl(); 43339741cecde917affbcbdfb2942ff1a9eae8f3488Ted Kremenek ElementTy = cast<ValueDecl>(D)->getType(); 43439741cecde917affbcbdfb2942ff1a9eae8f3488Ted Kremenek DeclAddress = LocalDeclMap[D]; 435f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson } else { 436f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson ElementTy = cast<Expr>(S.getElement())->getType(); 437f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson DeclAddress = 0; 438f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson } 439f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 440f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Fast enumeration state. 441f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson QualType StateTy = getContext().getObjCFastEnumerationStateType(); 442f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::AllocaInst *StatePtr = CreateTempAlloca(ConvertType(StateTy), 443f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson "state.ptr"); 444f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson StatePtr->setAlignment(getContext().getTypeAlign(StateTy) >> 3); 4452abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson EmitMemSetToZero(StatePtr, StateTy); 446f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 447f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Number of elements in the items array. 4482abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson static const unsigned NumItems = 16; 449f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 450f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Get selector 451f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::SmallVector<IdentifierInfo*, 3> II; 452f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson II.push_back(&CGM.getContext().Idents.get("countByEnumeratingWithState")); 453f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson II.push_back(&CGM.getContext().Idents.get("objects")); 454f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson II.push_back(&CGM.getContext().Idents.get("count")); 455f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Selector FastEnumSel = CGM.getContext().Selectors.getSelector(II.size(), 456f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson &II[0]); 457f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 458f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson QualType ItemsTy = 459f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson getContext().getConstantArrayType(getContext().getObjCIdType(), 460f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::APInt(32, NumItems), 461f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson ArrayType::Normal, 0); 462f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *ItemsPtr = CreateTempAlloca(ConvertType(ItemsTy), "items.ptr"); 463f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 464f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *Collection = EmitScalarExpr(S.getCollection()); 465f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 466f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson CallArgList Args; 46746f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar Args.push_back(std::make_pair(RValue::get(StatePtr), 468f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson getContext().getPointerType(StateTy))); 469f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 47046f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar Args.push_back(std::make_pair(RValue::get(ItemsPtr), 471f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson getContext().getPointerType(ItemsTy))); 472f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 473f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson const llvm::Type *UnsignedLongLTy = ConvertType(getContext().UnsignedLongTy); 474f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Constant *Count = llvm::ConstantInt::get(UnsignedLongLTy, NumItems); 47546f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar Args.push_back(std::make_pair(RValue::get(Count), 47646f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar getContext().UnsignedLongTy)); 477f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 478f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson RValue CountRV = 479f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson CGM.getObjCRuntime().GenerateMessageSend(*this, 480f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson getContext().UnsignedLongTy, 481f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson FastEnumSel, 482f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Collection, false, Args); 483f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 484f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *LimitPtr = CreateTempAlloca(UnsignedLongLTy, "limit.ptr"); 485f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(CountRV.getScalarVal(), LimitPtr); 486f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 48755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *NoElements = createBasicBlock("noelements"); 48855e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *SetStartMutations = createBasicBlock("setstartmutations"); 489f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 490f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *Limit = Builder.CreateLoad(LimitPtr); 491f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *Zero = llvm::Constant::getNullValue(UnsignedLongLTy); 492f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 493f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *IsZero = Builder.CreateICmpEQ(Limit, Zero, "iszero"); 4942abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson Builder.CreateCondBr(IsZero, NoElements, SetStartMutations); 495f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 4962abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson EmitBlock(SetStartMutations); 4972abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 4982abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *StartMutationsPtr = 4992abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson CreateTempAlloca(UnsignedLongLTy); 5002abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 5012abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *StateMutationsPtrPtr = 5022abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson Builder.CreateStructGEP(StatePtr, 2, "mutationsptr.ptr"); 5032abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *StateMutationsPtr = Builder.CreateLoad(StateMutationsPtrPtr, 5042abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson "mutationsptr"); 5052abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 5062abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *StateMutations = Builder.CreateLoad(StateMutationsPtr, 5072abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson "mutations"); 5082abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 5092abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson Builder.CreateStore(StateMutations, StartMutationsPtr); 5102abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 51155e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *LoopStart = createBasicBlock("loopstart"); 512f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(LoopStart); 513f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 514f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *CounterPtr = CreateTempAlloca(UnsignedLongLTy, "counter.ptr"); 515f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(Zero, CounterPtr); 516f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 51755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *LoopBody = createBasicBlock("loopbody"); 518f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(LoopBody); 519f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 5202abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson StateMutationsPtr = Builder.CreateLoad(StateMutationsPtrPtr, "mutationsptr"); 5212abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson StateMutations = Builder.CreateLoad(StateMutationsPtr, "statemutations"); 5222abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 5232abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *StartMutations = Builder.CreateLoad(StartMutationsPtr, 5242abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson "mutations"); 5252abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *MutationsEqual = Builder.CreateICmpEQ(StateMutations, 5262abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson StartMutations, 5272abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson "tobool"); 5282abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 5292abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 53055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *WasMutated = createBasicBlock("wasmutated"); 53155e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *WasNotMutated = createBasicBlock("wasnotmutated"); 5322abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 5332abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson Builder.CreateCondBr(MutationsEqual, WasNotMutated, WasMutated); 5342abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 5352abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson EmitBlock(WasMutated); 5362abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *V = 5372abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson Builder.CreateBitCast(Collection, 5382abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson ConvertType(getContext().getObjCIdType()), 5392abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson "tmp"); 5402b2105e92fc77016992dae3f117f526e73af5ea9Daniel Dunbar CallArgList Args2; 5412b2105e92fc77016992dae3f117f526e73af5ea9Daniel Dunbar Args2.push_back(std::make_pair(RValue::get(V), 5422b2105e92fc77016992dae3f117f526e73af5ea9Daniel Dunbar getContext().getObjCIdType())); 543f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump // FIXME: We shouldn't need to get the function info here, the runtime already 544f5408fe484495ee4efbdd709c8a2c2fdbbbdb328Mike Stump // should have computed it to build the function. 54590350b6f815eecd9441119b1412695d33fb2b98fDaniel Dunbar EmitCall(CGM.getTypes().getFunctionInfo(getContext().VoidTy, Args2), 5462b2105e92fc77016992dae3f117f526e73af5ea9Daniel Dunbar EnumerationMutationFn, Args2); 5472abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 5482abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson EmitBlock(WasNotMutated); 5492abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 550f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *StateItemsPtr = 551f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStructGEP(StatePtr, 1, "stateitems.ptr"); 552f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 553f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *Counter = Builder.CreateLoad(CounterPtr, "counter"); 554f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 555f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *EnumStateItems = Builder.CreateLoad(StateItemsPtr, 556f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson "stateitems"); 557f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 558f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *CurrentItemPtr = 559f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateGEP(EnumStateItems, Counter, "currentitem.ptr"); 560f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 561f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *CurrentItem = Builder.CreateLoad(CurrentItemPtr, "currentitem"); 562f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 563f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Cast the item to the right type. 564f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson CurrentItem = Builder.CreateBitCast(CurrentItem, 565f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson ConvertType(ElementTy), "tmp"); 566f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 567f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson if (!DeclAddress) { 568f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson LValue LV = EmitLValue(cast<Expr>(S.getElement())); 569f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 570f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Set the value to null. 571f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(CurrentItem, LV.getAddress()); 572f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson } else 573f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(CurrentItem, DeclAddress); 574f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 575f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Increment the counter. 576f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Counter = Builder.CreateAdd(Counter, 577f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::ConstantInt::get(UnsignedLongLTy, 1)); 578f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(Counter, CounterPtr); 579f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 58055e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *LoopEnd = createBasicBlock("loopend"); 58155e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *AfterBody = createBasicBlock("afterbody"); 582f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 583e4b6d342c29d5cb9d311756100df1603810fa892Anders Carlsson BreakContinueStack.push_back(BreakContinue(LoopEnd, AfterBody)); 584f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 585f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitStmt(S.getBody()); 586f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 587f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson BreakContinueStack.pop_back(); 588f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 589f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(AfterBody); 590f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 59155e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *FetchMore = createBasicBlock("fetchmore"); 592f0906c4edb37b20141428ca77fa7dfd00b976eafFariborz Jahanian 593f0906c4edb37b20141428ca77fa7dfd00b976eafFariborz Jahanian Counter = Builder.CreateLoad(CounterPtr); 594f0906c4edb37b20141428ca77fa7dfd00b976eafFariborz Jahanian Limit = Builder.CreateLoad(LimitPtr); 595f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *IsLess = Builder.CreateICmpULT(Counter, Limit, "isless"); 596fe2b2c08984f861f82339138302689480c658ecdDaniel Dunbar Builder.CreateCondBr(IsLess, LoopBody, FetchMore); 597f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 598f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Fetch more elements. 599f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(FetchMore); 600f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 601f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson CountRV = 602f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson CGM.getObjCRuntime().GenerateMessageSend(*this, 603f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson getContext().UnsignedLongTy, 604f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson FastEnumSel, 605f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Collection, false, Args); 606f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(CountRV.getScalarVal(), LimitPtr); 607f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Limit = Builder.CreateLoad(LimitPtr); 608f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 609f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson IsZero = Builder.CreateICmpEQ(Limit, Zero, "iszero"); 610f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateCondBr(IsZero, NoElements, LoopStart); 611f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 612f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // No more elements. 613f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(NoElements); 614f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 615f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson if (!DeclAddress) { 616f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // If the element was not a declaration, set it to be null. 617f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 618f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson LValue LV = EmitLValue(cast<Expr>(S.getElement())); 619f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 620f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Set the value to null. 621f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(llvm::Constant::getNullValue(ConvertType(ElementTy)), 622f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson LV.getAddress()); 623f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson } 624f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 625f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(LoopEnd); 6263d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson} 6273d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson 62864d5d6c5903157c521af496479d06dc26032d718Anders Carlssonvoid CodeGenFunction::EmitObjCAtTryStmt(const ObjCAtTryStmt &S) 62964d5d6c5903157c521af496479d06dc26032d718Anders Carlsson{ 630bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian CGM.getObjCRuntime().EmitTryOrSynchronizedStmt(*this, S); 63164d5d6c5903157c521af496479d06dc26032d718Anders Carlsson} 63264d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 63364d5d6c5903157c521af496479d06dc26032d718Anders Carlssonvoid CodeGenFunction::EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S) 63464d5d6c5903157c521af496479d06dc26032d718Anders Carlsson{ 63564d5d6c5903157c521af496479d06dc26032d718Anders Carlsson CGM.getObjCRuntime().EmitThrowStmt(*this, S); 63664d5d6c5903157c521af496479d06dc26032d718Anders Carlsson} 63764d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 63810cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattnervoid CodeGenFunction::EmitObjCAtSynchronizedStmt( 63910cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner const ObjCAtSynchronizedStmt &S) 64010cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner{ 641bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian CGM.getObjCRuntime().EmitTryOrSynchronizedStmt(*this, S); 64210cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner} 64310cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner 6442979ec73b4f974d85f2ce84167712177a44c6f09Ted KremenekCGObjCRuntime::~CGObjCRuntime() {} 645