CGObjC.cpp revision 90350b6f815eecd9441119b1412695d33fb2b98f
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" 19e66f4e3e3ae9d7d11b0c302211066fad69228abaDaniel Dunbar#include "clang/Basic/Diagnostic.h" 203d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson#include "llvm/ADT/STLExtras.h" 21c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar#include "llvm/Target/TargetData.h" 224111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 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{ 2971fcec9abf2ce66d5e17a24bd021680e94e42f0dDaniel Dunbar std::string String(E->getString()->getStrData(), 3071fcec9abf2ce66d5e17a24bd021680e94e42f0dDaniel Dunbar E->getString()->getByteLength()); 31bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbar llvm::Constant *C = CGM.getObjCRuntime().GenerateConstantString(String); 32ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar // FIXME: This bitcast should just be made an invariant on the Runtime. 33bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbar return llvm::ConstantExpr::getBitCast(C, ConvertType(E->getType())); 348fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner} 358fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 368fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner/// Emit a selector. 378fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattnerllvm::Value *CodeGenFunction::EmitObjCSelectorExpr(const ObjCSelectorExpr *E) { 388fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // Untyped selector. 398fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // Note that this implementation allows for non-constant strings to be passed 408fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // as arguments to @selector(). Currently, the only thing preventing this 418fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // behaviour is the type checking in the front end. 42208ff5e8a073de2a5d15cbe03cab8a4c0d935e28Daniel Dunbar return CGM.getObjCRuntime().GetSelector(Builder, E->getSelector()); 438fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner} 448fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 45ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbarllvm::Value *CodeGenFunction::EmitObjCProtocolExpr(const ObjCProtocolExpr *E) { 46ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar // FIXME: This should pass the Decl not the name. 47ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar return CGM.getObjCRuntime().GenerateProtocolRef(Builder, E->getProtocol()); 48ed7c618f849e2541b1d0288c43154937652c5b15Daniel Dunbar} 498fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 508fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 518f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarRValue CodeGenFunction::EmitObjCMessageExpr(const ObjCMessageExpr *E) { 528fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // Only the lookup mechanism and first two arguments of the method 538fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // implementation vary between runtimes. We can get the receiver and 548fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // arguments in generic code. 558fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 56208ff5e8a073de2a5d15cbe03cab8a4c0d935e28Daniel Dunbar CGObjCRuntime &Runtime = CGM.getObjCRuntime(); 578fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner const Expr *ReceiverExpr = E->getReceiver(); 588fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner bool isSuperMessage = false; 59f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar bool isClassMessage = false; 608fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner // Find the receiver 618fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner llvm::Value *Receiver; 628fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner if (!ReceiverExpr) { 63ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar const ObjCInterfaceDecl *OID = E->getClassInfo().first; 64ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar 65ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar // Very special case, super send in class method. The receiver is 66ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar // self (the class object) and the send uses super semantics. 67ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar if (!OID) { 6892e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner assert(E->getClassName()->isStr("super") && 69ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar "Unexpected missing class interface in message send."); 70ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar isSuperMessage = true; 71f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar Receiver = LoadObjCSelf(); 72f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar } else { 73f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar Receiver = Runtime.GetClass(Builder, OID); 748fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner } 75f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar 76f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar isClassMessage = true; 77cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor } else if (isa<ObjCSuperExpr>(E->getReceiver())) { 788fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner isSuperMessage = true; 798fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner Receiver = LoadObjCSelf(); 808fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner } else { 812bedbf8549bb33293c6a53e5da6cbd8de290d014Daniel Dunbar Receiver = EmitScalarExpr(E->getReceiver()); 828fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner } 838fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner 8419cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CallArgList Args; 8519cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar for (CallExpr::const_arg_iterator i = E->arg_begin(), e = E->arg_end(); 8619cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar i != e; ++i) 8746f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar Args.push_back(std::make_pair(EmitAnyExprToTemp(*i), (*i)->getType())); 8819cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar 898fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner if (isSuperMessage) { 909384c768e93f270118a30ce96546083a666da284Chris Lattner // super is only valid in an Objective-C method 919384c768e93f270118a30ce96546083a666da284Chris Lattner const ObjCMethodDecl *OMD = cast<ObjCMethodDecl>(CurFuncDecl); 927f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar return Runtime.GenerateMessageSendSuper(*this, E->getType(), 937f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar E->getSelector(), 94f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar OMD->getClassInterface(), 95f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar Receiver, 9619cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar isClassMessage, 9719cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar Args); 988fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner } 997f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar return Runtime.GenerateMessageSend(*this, E->getType(), E->getSelector(), 1007f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Receiver, isClassMessage, Args); 1015508518a2702b00be3b15a26d772bde968972f54Anders Carlsson} 1025508518a2702b00be3b15a26d772bde968972f54Anders Carlsson 103af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// StartObjCMethod - Begin emission of an ObjCMethod. This generates 104af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// the LLVM function and sets the other context used by 105af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// CodeGenFunction. 106679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanianvoid CodeGenFunction::StartObjCMethod(const ObjCMethodDecl *OMD, 107679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD) { 1087c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar FunctionArgList Args; 109679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian llvm::Function *Fn = CGM.getObjCRuntime().GenerateMethod(OMD, CD); 110f80519b919a348db004fba18530706314d1ebfb5Daniel Dunbar 1117c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar CGM.SetMethodAttributes(OMD, Fn); 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 1187c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar for (unsigned i = 0, e = OMD->getNumParams(); i != e; ++i) { 1197c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar ParmVarDecl *IPD = OMD->getParamDecl(i); 1207c086516f3cc9fba2733b1919973206c6ba4b171Daniel Dunbar Args.push_back(std::make_pair(IPD, IPD->getType())); 1214111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner } 122b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 1232284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar StartFunction(OMD, OMD->getResultType(), Fn, Args, OMD->getLocEnd()); 124af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar} 125af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 126af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// Generate an Objective-C method. An Objective-C method is a C function with 127af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// its pointer, name, and types registered in the class struture. 128af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbarvoid CodeGenFunction::GenerateObjCMethod(const ObjCMethodDecl *OMD) { 129679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian StartObjCMethod(OMD, OMD->getClassInterface()); 130af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar EmitStmt(OMD->getBody()); 1312284ac9ec80299fcdefae9a2787cf85105a0f203Daniel Dunbar FinishFunction(cast<CompoundStmt>(OMD->getBody())->getRBracLoc()); 132af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar} 133af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 134af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar// FIXME: I wasn't sure about the synthesis approach. If we end up 135af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar// generating an AST for the whole body we can just fall back to 136af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar// having a GenerateFunction which takes the body Stmt. 137af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 138af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// GenerateObjCGetter - Generate an Objective-C property getter 139489034cf8bde09360e0089f401b2929597b125d8Steve Naroff/// function. The given Decl must be an ObjCImplementationDecl. @synthesize 140489034cf8bde09360e0089f401b2929597b125d8Steve Naroff/// is illegal within a category. 141fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanianvoid CodeGenFunction::GenerateObjCGetter(ObjCImplementationDecl *IMP, 142fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID) { 143c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar ObjCIvarDecl *Ivar = PID->getPropertyIvarDecl(); 144af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar const ObjCPropertyDecl *PD = PID->getPropertyDecl(); 145af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar ObjCMethodDecl *OMD = PD->getGetterMethodDecl(); 146af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar assert(OMD && "Invalid call to generate getter (empty method)"); 147af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar // FIXME: This is rather murky, we create this here since they will 148af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar // not have been created by Sema for us. 149fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian OMD->createImplicitParams(getContext(), IMP->getClassInterface()); 150679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian StartObjCMethod(OMD, IMP->getClassInterface()); 151af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 152c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // Determine if we should use an objc_getProperty call for 153447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian // this. Non-atomic properties are directly evaluated. 154447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian // atomic 'copy' and 'retain' properties are also directly 155447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian // evaluated in gc-only mode. 156c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar if (CGM.getLangOptions().getGCMode() != LangOptions::GCOnly && 157447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian !(PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) && 158447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian (PD->getSetterKind() == ObjCPropertyDecl::Copy || 159447d7aeb9499d7ade42be7d63fa03b37b1d2fc09Fariborz Jahanian PD->getSetterKind() == ObjCPropertyDecl::Retain)) { 160c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar llvm::Value *GetPropertyFn = 161c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CGM.getObjCRuntime().GetPropertyGetFunction(); 162c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar 163c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar if (!GetPropertyFn) { 164c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CGM.ErrorUnsupported(PID, "Obj-C getter requiring atomic copy"); 165c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar FinishFunction(); 166c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar return; 167c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar } 168c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar 169c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // Return (ivar-type) objc_getProperty((id) self, _cmd, offset, true). 170c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // FIXME: Can't this be simpler? This might even be worse than the 171c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // corresponding gcc code. 172c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CodeGenTypes &Types = CGM.getTypes(); 173c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar ValueDecl *Cmd = OMD->getCmdDecl(); 174c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar llvm::Value *CmdVal = Builder.CreateLoad(LocalDeclMap[Cmd], "cmd"); 175c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar QualType IdTy = getContext().getObjCIdType(); 176c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar llvm::Value *SelfAsId = 177c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Builder.CreateBitCast(LoadObjCSelf(), Types.ConvertType(IdTy)); 178fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian llvm::Value *Offset = EmitIvarOffset(IMP->getClassInterface(), Ivar); 179c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar llvm::Value *True = 180be395f6b29762c37938637ffef5f59514e04751aDaniel Dunbar llvm::ConstantInt::get(Types.ConvertType(getContext().BoolTy), 1); 181c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CallArgList Args; 182c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Args.push_back(std::make_pair(RValue::get(SelfAsId), IdTy)); 183c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Args.push_back(std::make_pair(RValue::get(CmdVal), Cmd->getType())); 184c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Args.push_back(std::make_pair(RValue::get(Offset), getContext().LongTy)); 185c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Args.push_back(std::make_pair(RValue::get(True), getContext().BoolTy)); 186e4be5a66072f7c7618071284c8d2a9c6d8e691cfDaniel Dunbar // FIXME: We shouldn't need to get the function info here, the 187e4be5a66072f7c7618071284c8d2a9c6d8e691cfDaniel Dunbar // runtime already should have computed it to build the function. 188541b63b1a9db77e4a8670e9823711c2c12e58afbDaniel Dunbar RValue RV = EmitCall(Types.getFunctionInfo(PD->getType(), Args), 18988b5396b0897f28d22ae3debf4a0d97b33b6c362Daniel Dunbar GetPropertyFn, Args); 190c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // We need to fix the type here. Ivars with copy & retain are 191c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // always objects so we don't need to worry about complex or 192c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar // aggregates. 193c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar RV = RValue::get(Builder.CreateBitCast(RV.getScalarVal(), 194c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar Types.ConvertType(PD->getType()))); 195c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar EmitReturnOfRValue(RV, PD->getType()); 196c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar } else { 197fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian FieldDecl *Field = 198fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian IMP->getClassInterface()->lookupFieldDeclForIvar(getContext(), Ivar); 19945012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LValue LV = EmitLValueForIvar(TypeOfSelfObject(), 20045012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian LoadObjCSelf(), Ivar, Field, 0); 2016010bca98a617a40951561c380a89afd261fb0acFariborz Jahanian if (hasAggregateLLVMType(Ivar->getType())) { 2026010bca98a617a40951561c380a89afd261fb0acFariborz Jahanian EmitAggregateCopy(ReturnValue, LV.getAddress(), Ivar->getType()); 2036010bca98a617a40951561c380a89afd261fb0acFariborz Jahanian } 2046010bca98a617a40951561c380a89afd261fb0acFariborz Jahanian else 2056010bca98a617a40951561c380a89afd261fb0acFariborz Jahanian EmitReturnOfRValue(EmitLoadOfLValue(LV, Ivar->getType()), 2066010bca98a617a40951561c380a89afd261fb0acFariborz Jahanian PD->getType()); 207c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar } 208af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 209af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar FinishFunction(); 210af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar} 211af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 212af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar/// GenerateObjCSetter - Generate an Objective-C property setter 213489034cf8bde09360e0089f401b2929597b125d8Steve Naroff/// function. The given Decl must be an ObjCImplementationDecl. @synthesize 214489034cf8bde09360e0089f401b2929597b125d8Steve Naroff/// is illegal within a category. 215fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanianvoid CodeGenFunction::GenerateObjCSetter(ObjCImplementationDecl *IMP, 216fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian const ObjCPropertyImplDecl *PID) { 21786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar ObjCIvarDecl *Ivar = PID->getPropertyIvarDecl(); 218af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar const ObjCPropertyDecl *PD = PID->getPropertyDecl(); 219af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar ObjCMethodDecl *OMD = PD->getSetterMethodDecl(); 220af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar assert(OMD && "Invalid call to generate setter (empty method)"); 221af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar // FIXME: This is rather murky, we create this here since they will 222af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar // not have been created by Sema for us. 223fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian OMD->createImplicitParams(getContext(), IMP->getClassInterface()); 224679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian StartObjCMethod(OMD, IMP->getClassInterface()); 225b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar 22686957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar bool IsCopy = PD->getSetterKind() == ObjCPropertyDecl::Copy; 22786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar bool IsAtomic = 22886957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar !(PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic); 22986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar 23086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // Determine if we should use an objc_setProperty call for 23186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // this. Properties with 'copy' semantics always use it, as do 23286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // non-atomic properties with 'release' semantics as long as we are 23386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // not in gc-only mode. 23486957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar if (IsCopy || 23586957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar (CGM.getLangOptions().getGCMode() != LangOptions::GCOnly && 23686957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar PD->getSetterKind() == ObjCPropertyDecl::Retain)) { 23786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *SetPropertyFn = 23886957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar CGM.getObjCRuntime().GetPropertySetFunction(); 23986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar 24086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar if (!SetPropertyFn) { 24186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar CGM.ErrorUnsupported(PID, "Obj-C getter requiring atomic copy"); 24286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar FinishFunction(); 24386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar return; 24486957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar } 24586957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar 24686957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // Emit objc_setProperty((id) self, _cmd, offset, arg, 24786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // <is-atomic>, <is-copy>). 24886957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // FIXME: Can't this be simpler? This might even be worse than the 24986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar // corresponding gcc code. 25086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar CodeGenTypes &Types = CGM.getTypes(); 25186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar ValueDecl *Cmd = OMD->getCmdDecl(); 25286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *CmdVal = Builder.CreateLoad(LocalDeclMap[Cmd], "cmd"); 25386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar QualType IdTy = getContext().getObjCIdType(); 25486957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *SelfAsId = 25586957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Builder.CreateBitCast(LoadObjCSelf(), Types.ConvertType(IdTy)); 256fef30b55230064d334a669a065a1c9acdb87cdfeFariborz Jahanian llvm::Value *Offset = EmitIvarOffset(IMP->getClassInterface(), Ivar); 25786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *Arg = LocalDeclMap[OMD->getParamDecl(0)]; 25886957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *ArgAsId = 25986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Builder.CreateBitCast(Builder.CreateLoad(Arg, "arg"), 26086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Types.ConvertType(IdTy)); 26186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *True = 262be395f6b29762c37938637ffef5f59514e04751aDaniel Dunbar llvm::ConstantInt::get(Types.ConvertType(getContext().BoolTy), 1); 26386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar llvm::Value *False = 264be395f6b29762c37938637ffef5f59514e04751aDaniel Dunbar llvm::ConstantInt::get(Types.ConvertType(getContext().BoolTy), 0); 26586957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar CallArgList Args; 26686957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(SelfAsId), IdTy)); 26786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(CmdVal), Cmd->getType())); 26886957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(Offset), getContext().LongTy)); 26986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(ArgAsId), IdTy)); 27086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(IsAtomic ? True : False), 27186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar getContext().BoolTy)); 27286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Args.push_back(std::make_pair(RValue::get(IsCopy ? True : False), 27386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar getContext().BoolTy)); 274e4be5a66072f7c7618071284c8d2a9c6d8e691cfDaniel Dunbar // FIXME: We shouldn't need to get the function info here, the 275e4be5a66072f7c7618071284c8d2a9c6d8e691cfDaniel Dunbar // runtime already should have computed it to build the function. 276e4be5a66072f7c7618071284c8d2a9c6d8e691cfDaniel Dunbar EmitCall(Types.getFunctionInfo(getContext().VoidTy, Args), 277541b63b1a9db77e4a8670e9823711c2c12e58afbDaniel Dunbar SetPropertyFn, Args); 27886957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar } else { 27986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar SourceLocation Loc = PD->getLocation(); 28086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar ValueDecl *Self = OMD->getSelfDecl(); 28186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar ObjCIvarDecl *Ivar = PID->getPropertyIvarDecl(); 28286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar DeclRefExpr Base(Self, Self->getType(), Loc); 28386957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar ParmVarDecl *ArgDecl = OMD->getParamDecl(0); 28486957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar DeclRefExpr Arg(ArgDecl, ArgDecl->getType(), Loc); 285aaa63a761c6671a08e3f4f463435b72739fa194bFariborz Jahanian ObjCInterfaceDecl *OI = IMP->getClassInterface(); 286efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian ObjCIvarRefExpr IvarRef(Ivar, Ivar->getType(), Loc, &Base, 28786957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar true, true); 288efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian getContext().setFieldDecl(OI, Ivar, &IvarRef); 28986957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar BinaryOperator Assign(&IvarRef, &Arg, BinaryOperator::Assign, 29086957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar Ivar->getType(), Loc); 29186957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar EmitStmt(&Assign); 29286957eb200492e95a09bce1b2c76f66345468f84Daniel Dunbar } 293af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar 294af05bb9073319d8381b71c4325188853fd4b8ed6Daniel Dunbar FinishFunction(); 2954111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner} 2964111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 297c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbarllvm::Value *CodeGenFunction::LoadObjCSelf() { 298b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar const ObjCMethodDecl *OMD = cast<ObjCMethodDecl>(CurFuncDecl); 299b7ec246872b412f0e7bb9e93eacfd78cfa6adfb3Daniel Dunbar return Builder.CreateLoad(LocalDeclMap[OMD->getSelfDecl()], "self"); 3004111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner} 3014111024be81e7c0525e42dadcc126d27e5bf2425Chris Lattner 30245012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz JahanianQualType CodeGenFunction::TypeOfSelfObject() { 30345012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian const ObjCMethodDecl *OMD = cast<ObjCMethodDecl>(CurFuncDecl); 30445012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian ImplicitParamDecl *selfDecl = OMD->getSelfDecl(); 30545012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian const PointerType *PTy = 30645012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian cast<PointerType>(getContext().getCanonicalType(selfDecl->getType())); 30745012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian return PTy->getPointeeType(); 30845012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian} 30945012a7ef5abf1042c893f3f2fa5c23cb5485ea9Fariborz Jahanian 3105daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz JahanianRValue CodeGenFunction::EmitObjCPropertyGet(const Expr *Exp) { 31143f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian // FIXME: Split it into two separate routines. 3125daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian if (const ObjCPropertyRefExpr *E = dyn_cast<ObjCPropertyRefExpr>(Exp)) { 3135daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian Selector S = E->getProperty()->getGetterName(); 3145daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian return CGM.getObjCRuntime(). 31543f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian GenerateMessageSend(*this, Exp->getType(), S, 31643f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian EmitScalarExpr(E->getBase()), 31743f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian false, CallArgList()); 31843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian } 319f185319f25efd6094870f287030270fad26085baDaniel Dunbar else { 320f479cea608dae347bc06c7a7279ab54fe34d47f6Daniel Dunbar const ObjCKVCRefExpr *KE = cast<ObjCKVCRefExpr>(Exp); 321f479cea608dae347bc06c7a7279ab54fe34d47f6Daniel Dunbar Selector S = KE->getGetterMethod()->getSelector(); 32243f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian return CGM.getObjCRuntime(). 32343f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian GenerateMessageSend(*this, Exp->getType(), S, 324f479cea608dae347bc06c7a7279ab54fe34d47f6Daniel Dunbar EmitScalarExpr(KE->getBase()), 32543f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian false, CallArgList()); 3265daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian } 3279c3fc703b29a31d40bcf5027dbb4784dd393804eDaniel Dunbar} 3289c3fc703b29a31d40bcf5027dbb4784dd393804eDaniel Dunbar 32943f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanianvoid CodeGenFunction::EmitObjCPropertySet(const Expr *Exp, 33085c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar RValue Src) { 33143f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian // FIXME: Split it into two separate routines. 33243f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian if (const ObjCPropertyRefExpr *E = dyn_cast<ObjCPropertyRefExpr>(Exp)) { 33343f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian Selector S = E->getProperty()->getSetterName(); 33443f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian CallArgList Args; 33543f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian Args.push_back(std::make_pair(Src, E->getType())); 33643f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian CGM.getObjCRuntime().GenerateMessageSend(*this, getContext().VoidTy, S, 33743f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian EmitScalarExpr(E->getBase()), 33843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian false, Args); 33943f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian } 34043f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian else if (const ObjCKVCRefExpr *E = dyn_cast<ObjCKVCRefExpr>(Exp)) { 34143f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian Selector S = E->getSetterMethod()->getSelector(); 34243f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian CallArgList Args; 34343f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian Args.push_back(std::make_pair(Src, E->getType())); 34443f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian CGM.getObjCRuntime().GenerateMessageSend(*this, getContext().VoidTy, S, 34543f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian EmitScalarExpr(E->getBase()), 34643f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian false, Args); 34743f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian } 34843f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian else 34943f447098d5e6162fbfb97ed38365284207a7fbeFariborz Jahanian assert (0 && "bad expression node in EmitObjCPropertySet"); 35085c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar} 35185c59edda02df48fae8dc85049743319bc6e7e89Daniel Dunbar 3523d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlssonvoid CodeGenFunction::EmitObjCForCollectionStmt(const ObjCForCollectionStmt &S) 3533d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson{ 354c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar llvm::Function *EnumerationMutationFn = 355c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CGM.getObjCRuntime().EnumerationMutationFunction(); 356f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *DeclAddress; 357f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson QualType ElementTy; 358f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 359c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar if (!EnumerationMutationFn) { 360c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar CGM.ErrorUnsupported(&S, "Obj-C fast enumeration for this runtime"); 361c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar return; 362c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar } 363c1cf4a579f8a0a77719deedc1b8f850b77d36ecfDaniel Dunbar 364f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson if (const DeclStmt *SD = dyn_cast<DeclStmt>(S.getElement())) { 365f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitStmt(SD); 366a448fb2da03ece39978784793eea68760e8205a1Daniel Dunbar assert(HaveInsertPoint() && "DeclStmt destroyed insert point!"); 3674afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor const Decl* D = SD->getSolitaryDecl(); 36839741cecde917affbcbdfb2942ff1a9eae8f3488Ted Kremenek ElementTy = cast<ValueDecl>(D)->getType(); 36939741cecde917affbcbdfb2942ff1a9eae8f3488Ted Kremenek DeclAddress = LocalDeclMap[D]; 370f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson } else { 371f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson ElementTy = cast<Expr>(S.getElement())->getType(); 372f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson DeclAddress = 0; 373f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson } 374f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 375f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Fast enumeration state. 376f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson QualType StateTy = getContext().getObjCFastEnumerationStateType(); 377f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::AllocaInst *StatePtr = CreateTempAlloca(ConvertType(StateTy), 378f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson "state.ptr"); 379f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson StatePtr->setAlignment(getContext().getTypeAlign(StateTy) >> 3); 3802abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson EmitMemSetToZero(StatePtr, StateTy); 381f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 382f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Number of elements in the items array. 3832abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson static const unsigned NumItems = 16; 384f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 385f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Get selector 386f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::SmallVector<IdentifierInfo*, 3> II; 387f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson II.push_back(&CGM.getContext().Idents.get("countByEnumeratingWithState")); 388f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson II.push_back(&CGM.getContext().Idents.get("objects")); 389f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson II.push_back(&CGM.getContext().Idents.get("count")); 390f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Selector FastEnumSel = CGM.getContext().Selectors.getSelector(II.size(), 391f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson &II[0]); 392f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 393f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson QualType ItemsTy = 394f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson getContext().getConstantArrayType(getContext().getObjCIdType(), 395f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::APInt(32, NumItems), 396f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson ArrayType::Normal, 0); 397f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *ItemsPtr = CreateTempAlloca(ConvertType(ItemsTy), "items.ptr"); 398f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 399f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *Collection = EmitScalarExpr(S.getCollection()); 400f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 401f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson CallArgList Args; 40246f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar Args.push_back(std::make_pair(RValue::get(StatePtr), 403f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson getContext().getPointerType(StateTy))); 404f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 40546f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar Args.push_back(std::make_pair(RValue::get(ItemsPtr), 406f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson getContext().getPointerType(ItemsTy))); 407f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 408f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson const llvm::Type *UnsignedLongLTy = ConvertType(getContext().UnsignedLongTy); 409f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Constant *Count = llvm::ConstantInt::get(UnsignedLongLTy, NumItems); 41046f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar Args.push_back(std::make_pair(RValue::get(Count), 41146f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar getContext().UnsignedLongTy)); 412f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 413f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson RValue CountRV = 414f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson CGM.getObjCRuntime().GenerateMessageSend(*this, 415f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson getContext().UnsignedLongTy, 416f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson FastEnumSel, 417f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Collection, false, Args); 418f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 419f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *LimitPtr = CreateTempAlloca(UnsignedLongLTy, "limit.ptr"); 420f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(CountRV.getScalarVal(), LimitPtr); 421f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 42255e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *NoElements = createBasicBlock("noelements"); 42355e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *SetStartMutations = createBasicBlock("setstartmutations"); 424f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 425f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *Limit = Builder.CreateLoad(LimitPtr); 426f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *Zero = llvm::Constant::getNullValue(UnsignedLongLTy); 427f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 428f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *IsZero = Builder.CreateICmpEQ(Limit, Zero, "iszero"); 4292abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson Builder.CreateCondBr(IsZero, NoElements, SetStartMutations); 430f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 4312abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson EmitBlock(SetStartMutations); 4322abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 4332abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *StartMutationsPtr = 4342abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson CreateTempAlloca(UnsignedLongLTy); 4352abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 4362abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *StateMutationsPtrPtr = 4372abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson Builder.CreateStructGEP(StatePtr, 2, "mutationsptr.ptr"); 4382abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *StateMutationsPtr = Builder.CreateLoad(StateMutationsPtrPtr, 4392abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson "mutationsptr"); 4402abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 4412abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *StateMutations = Builder.CreateLoad(StateMutationsPtr, 4422abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson "mutations"); 4432abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 4442abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson Builder.CreateStore(StateMutations, StartMutationsPtr); 4452abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 44655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *LoopStart = createBasicBlock("loopstart"); 447f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(LoopStart); 448f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 449f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *CounterPtr = CreateTempAlloca(UnsignedLongLTy, "counter.ptr"); 450f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(Zero, CounterPtr); 451f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 45255e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *LoopBody = createBasicBlock("loopbody"); 453f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(LoopBody); 454f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 4552abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson StateMutationsPtr = Builder.CreateLoad(StateMutationsPtrPtr, "mutationsptr"); 4562abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson StateMutations = Builder.CreateLoad(StateMutationsPtr, "statemutations"); 4572abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 4582abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *StartMutations = Builder.CreateLoad(StartMutationsPtr, 4592abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson "mutations"); 4602abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *MutationsEqual = Builder.CreateICmpEQ(StateMutations, 4612abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson StartMutations, 4622abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson "tobool"); 4632abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 4642abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 46555e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *WasMutated = createBasicBlock("wasmutated"); 46655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *WasNotMutated = createBasicBlock("wasnotmutated"); 4672abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 4682abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson Builder.CreateCondBr(MutationsEqual, WasNotMutated, WasMutated); 4692abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 4702abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson EmitBlock(WasMutated); 4712abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson llvm::Value *V = 4722abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson Builder.CreateBitCast(Collection, 4732abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson ConvertType(getContext().getObjCIdType()), 4742abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson "tmp"); 4752b2105e92fc77016992dae3f117f526e73af5ea9Daniel Dunbar CallArgList Args2; 4762b2105e92fc77016992dae3f117f526e73af5ea9Daniel Dunbar Args2.push_back(std::make_pair(RValue::get(V), 4772b2105e92fc77016992dae3f117f526e73af5ea9Daniel Dunbar getContext().getObjCIdType())); 4782b2105e92fc77016992dae3f117f526e73af5ea9Daniel Dunbar // FIXME: We shouldn't need to get the function info here, the 4792b2105e92fc77016992dae3f117f526e73af5ea9Daniel Dunbar // runtime already should have computed it to build the function. 48090350b6f815eecd9441119b1412695d33fb2b98fDaniel Dunbar EmitCall(CGM.getTypes().getFunctionInfo(getContext().VoidTy, Args2), 4812b2105e92fc77016992dae3f117f526e73af5ea9Daniel Dunbar EnumerationMutationFn, Args2); 4822abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 4832abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson EmitBlock(WasNotMutated); 4842abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 485f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *StateItemsPtr = 486f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStructGEP(StatePtr, 1, "stateitems.ptr"); 487f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 488f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *Counter = Builder.CreateLoad(CounterPtr, "counter"); 489f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 490f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *EnumStateItems = Builder.CreateLoad(StateItemsPtr, 491f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson "stateitems"); 492f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 493f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *CurrentItemPtr = 494f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateGEP(EnumStateItems, Counter, "currentitem.ptr"); 495f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 496f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *CurrentItem = Builder.CreateLoad(CurrentItemPtr, "currentitem"); 497f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 498f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Cast the item to the right type. 499f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson CurrentItem = Builder.CreateBitCast(CurrentItem, 500f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson ConvertType(ElementTy), "tmp"); 501f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 502f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson if (!DeclAddress) { 503f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson LValue LV = EmitLValue(cast<Expr>(S.getElement())); 504f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 505f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Set the value to null. 506f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(CurrentItem, LV.getAddress()); 507f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson } else 508f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(CurrentItem, DeclAddress); 509f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 510f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Increment the counter. 511f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Counter = Builder.CreateAdd(Counter, 512f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::ConstantInt::get(UnsignedLongLTy, 1)); 513f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(Counter, CounterPtr); 514f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 51555e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *LoopEnd = createBasicBlock("loopend"); 51655e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *AfterBody = createBasicBlock("afterbody"); 517f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 518e21269bcb732afa70386fdd4c95d22bc2ed943b1Anders Carlsson BreakContinueStack.push_back(BreakContinue(LoopEnd, AfterBody, 519e21269bcb732afa70386fdd4c95d22bc2ed943b1Anders Carlsson ObjCEHStack.size())); 520f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 521f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitStmt(S.getBody()); 522f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 523f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson BreakContinueStack.pop_back(); 524f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 525f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(AfterBody); 526f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 52755e874299f2ad827646a4ca9ea38c402aaeb38c9Daniel Dunbar llvm::BasicBlock *FetchMore = createBasicBlock("fetchmore"); 528f0906c4edb37b20141428ca77fa7dfd00b976eafFariborz Jahanian 529f0906c4edb37b20141428ca77fa7dfd00b976eafFariborz Jahanian Counter = Builder.CreateLoad(CounterPtr); 530f0906c4edb37b20141428ca77fa7dfd00b976eafFariborz Jahanian Limit = Builder.CreateLoad(LimitPtr); 531f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson llvm::Value *IsLess = Builder.CreateICmpULT(Counter, Limit, "isless"); 532fe2b2c08984f861f82339138302689480c658ecdDaniel Dunbar Builder.CreateCondBr(IsLess, LoopBody, FetchMore); 533f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 534f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Fetch more elements. 535f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(FetchMore); 536f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 537f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson CountRV = 538f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson CGM.getObjCRuntime().GenerateMessageSend(*this, 539f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson getContext().UnsignedLongTy, 540f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson FastEnumSel, 541f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Collection, false, Args); 542f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(CountRV.getScalarVal(), LimitPtr); 543f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Limit = Builder.CreateLoad(LimitPtr); 544f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 545f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson IsZero = Builder.CreateICmpEQ(Limit, Zero, "iszero"); 546f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateCondBr(IsZero, NoElements, LoopStart); 547f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 548f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // No more elements. 549f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(NoElements); 550f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 551f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson if (!DeclAddress) { 552f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // If the element was not a declaration, set it to be null. 553f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 554f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson LValue LV = EmitLValue(cast<Expr>(S.getElement())); 555f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 556f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson // Set the value to null. 557f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson Builder.CreateStore(llvm::Constant::getNullValue(ConvertType(ElementTy)), 558f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson LV.getAddress()); 559f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson } 560f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson 561f484c31f4d6934f56070c2942d4dfdf3fee84074Anders Carlsson EmitBlock(LoopEnd); 5623d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson} 5633d8400d9a61aa4b63ff35e5cede405b32a41425eAnders Carlsson 56464d5d6c5903157c521af496479d06dc26032d718Anders Carlssonvoid CodeGenFunction::EmitObjCAtTryStmt(const ObjCAtTryStmt &S) 56564d5d6c5903157c521af496479d06dc26032d718Anders Carlsson{ 566bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian CGM.getObjCRuntime().EmitTryOrSynchronizedStmt(*this, S); 56764d5d6c5903157c521af496479d06dc26032d718Anders Carlsson} 56864d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 56964d5d6c5903157c521af496479d06dc26032d718Anders Carlssonvoid CodeGenFunction::EmitObjCAtThrowStmt(const ObjCAtThrowStmt &S) 57064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson{ 57164d5d6c5903157c521af496479d06dc26032d718Anders Carlsson CGM.getObjCRuntime().EmitThrowStmt(*this, S); 57264d5d6c5903157c521af496479d06dc26032d718Anders Carlsson} 57364d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 57410cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattnervoid CodeGenFunction::EmitObjCAtSynchronizedStmt( 57510cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner const ObjCAtSynchronizedStmt &S) 57610cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner{ 577bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian CGM.getObjCRuntime().EmitTryOrSynchronizedStmt(*this, S); 57810cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner} 57910cac6f7115b59a466bb8d2d51cdddeb38aadc37Chris Lattner 5802979ec73b4f974d85f2ce84167712177a44c6f09Ted KremenekCGObjCRuntime::~CGObjCRuntime() {} 581