CGObjCGNU.cpp revision 26c8294dacc2efc83d8d560593ff863e7a32a48f
120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//===------- CGObjCGNU.cpp - Emit LLVM Code from ASTs for a Module --------===// 20f984268b05edab2cc555a427c441baa9c252658Chris Lattner// 30f984268b05edab2cc555a427c441baa9c252658Chris Lattner// The LLVM Compiler Infrastructure 40f984268b05edab2cc555a427c441baa9c252658Chris Lattner// 50f984268b05edab2cc555a427c441baa9c252658Chris Lattner// This file is distributed under the University of Illinois Open Source 60f984268b05edab2cc555a427c441baa9c252658Chris Lattner// License. See LICENSE.TXT for details. 70f984268b05edab2cc555a427c441baa9c252658Chris Lattner// 80f984268b05edab2cc555a427c441baa9c252658Chris Lattner//===----------------------------------------------------------------------===// 90f984268b05edab2cc555a427c441baa9c252658Chris Lattner// 1020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// This provides Objective-C code generation targetting the GNU runtime. The 1120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// class in this file generates structures used by the GNU Objective-C runtime 1220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// library. These structures are defined in objc/objc.h and objc/objc-api.h in 1320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// the GNU runtime distribution. 140f984268b05edab2cc555a427c441baa9c252658Chris Lattner// 150f984268b05edab2cc555a427c441baa9c252658Chris Lattner//===----------------------------------------------------------------------===// 160f984268b05edab2cc555a427c441baa9c252658Chris Lattner 170f984268b05edab2cc555a427c441baa9c252658Chris Lattner#include "CGObjCRuntime.h" 18dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner#include "CodeGenModule.h" 198f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar#include "CodeGenFunction.h" 20dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner#include "clang/AST/ASTContext.h" 21e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Decl.h" 22af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar#include "clang/AST/DeclObjC.h" 230f984268b05edab2cc555a427c441baa9c252658Chris Lattner#include "llvm/Module.h" 240f984268b05edab2cc555a427c441baa9c252658Chris Lattner#include "llvm/ADT/SmallVector.h" 2520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov#include "llvm/ADT/StringMap.h" 267ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar#include "llvm/Support/Compiler.h" 277ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar#include "llvm/Target/TargetData.h" 2820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov#include <map> 29e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner 30e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner 31dce1406f1c1f572cfd61c494546572d63461c741Chris Lattnerusing namespace clang; 3246f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbarusing namespace CodeGen; 3320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovusing llvm::dyn_cast; 3420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 3520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// The version of the runtime that this class targets. Must match the version 3620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// in the runtime. 3720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic const int RuntimeVersion = 8; 3820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic const int ProtocolVersion = 2; 390f984268b05edab2cc555a427c441baa9c252658Chris Lattner 400f984268b05edab2cc555a427c441baa9c252658Chris Lattnernamespace { 41dce1406f1c1f572cfd61c494546572d63461c741Chris Lattnerclass CGObjCGNU : public CodeGen::CGObjCRuntime { 420f984268b05edab2cc555a427c441baa9c252658Chris Lattnerprivate: 43dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner CodeGen::CodeGenModule &CGM; 440f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Module &TheModule; 45e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner const llvm::PointerType *SelectorTy; 46e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner const llvm::PointerType *PtrToInt8Ty; 47b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian const llvm::FunctionType *IMPTy; 48e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner const llvm::PointerType *IdTy; 49e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner const llvm::IntegerType *IntTy; 50e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner const llvm::PointerType *PtrTy; 51e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner const llvm::IntegerType *LongTy; 52e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner const llvm::PointerType *PtrToIntTy; 5320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Classes; 5420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Categories; 5520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> ConstantStrings; 5620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Function *LoadFunction; 5720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StringMap<llvm::Constant*> ExistingProtocols; 5820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov typedef std::pair<std::string, std::string> TypedSelector; 5920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::map<TypedSelector, llvm::GlobalAlias*> TypedSelectors; 6020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StringMap<llvm::GlobalAlias*> UntypedSelectors; 6120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Some zeros used for GEPs in lots of places. 6220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Zeros[2]; 6320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *NULLPtr; 6420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovprivate: 6520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateIvarList( 6620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 6720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 6820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets); 6920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateMethodList(const std::string &ClassName, 7020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &CategoryName, 71a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const llvm::SmallVectorImpl<Selector> &MethodSels, 7220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes, 7320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethodList); 7420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateProtocolList( 7520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols); 7620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateClassStructure( 7720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClass, 7820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass, 7920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned info, 80d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner const char *Name, 8120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Version, 8220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceSize, 8320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IVars, 8420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Methods, 8520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Protocols); 8620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateProtocolMethodList( 8720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 8820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes); 8920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeConstantString(const std::string &Str, const std::string 9020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov &Name=""); 9120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeGlobal(const llvm::StructType *Ty, 9220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name=""); 9320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeGlobal(const llvm::ArrayType *Ty, 9420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name=""); 950f984268b05edab2cc555a427c441baa9c252658Chris Lattnerpublic: 96dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner CGObjCGNU(CodeGen::CodeGenModule &cgm); 97bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbar virtual llvm::Constant *GenerateConstantString(const std::string &String); 988f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar virtual CodeGen::RValue 998f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar GenerateMessageSend(CodeGen::CodeGenFunction &CGF, 1007f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 1017f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 102f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 10319cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 10419cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs); 1058f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar virtual CodeGen::RValue 1068f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, 1077f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 1087f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 109f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *Class, 1107ce77920a35060f1c8dd72e541e42ce296ccd168Fariborz Jahanian bool isCategoryImpl, 111f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 11219cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 11319cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs); 11445d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar virtual llvm::Value *GetClass(CGBuilderTy &Builder, 115ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar const ObjCInterfaceDecl *OID); 11645d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar virtual llvm::Value *GetSelector(CGBuilderTy &Builder, Selector Sel); 1178e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 118679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian virtual llvm::Function *GenerateMethod(const ObjCMethodDecl *OMD, 119679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD); 1207ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar virtual void GenerateCategory(const ObjCCategoryImplDecl *CMD); 1217ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar virtual void GenerateClass(const ObjCImplementationDecl *ClassDecl); 12245d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar virtual llvm::Value *GenerateProtocolRef(CGBuilderTy &Builder, 123af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar const ObjCProtocolDecl *PD); 124af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar virtual void GenerateProtocol(const ObjCProtocolDecl *PD); 12520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Function *ModuleInitFunction(); 12649f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar virtual llvm::Function *GetPropertyGetFunction(); 12749f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar virtual llvm::Function *GetPropertySetFunction(); 1282abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson virtual llvm::Function *EnumerationMutationFunction(); 12964d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 130bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian virtual void EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, 131bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian const Stmt &S); 13264d5d6c5903157c521af496479d06dc26032d718Anders Carlsson virtual void EmitThrowStmt(CodeGen::CodeGenFunction &CGF, 13364d5d6c5903157c521af496479d06dc26032d718Anders Carlsson const ObjCAtThrowStmt &S); 1343e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian virtual llvm::Value * EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF, 1356dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian llvm::Value *AddrWeakObj); 1363e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian virtual void EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, 1373e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian llvm::Value *src, llvm::Value *dst); 13858626500527695865683d1d65053743de8770b60Fariborz Jahanian virtual void EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, 13958626500527695865683d1d65053743de8770b60Fariborz Jahanian llvm::Value *src, llvm::Value *dest); 1407eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian virtual void EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, 1417eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian llvm::Value *src, llvm::Value *dest); 14258626500527695865683d1d65053743de8770b60Fariborz Jahanian virtual void EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF, 14358626500527695865683d1d65053743de8770b60Fariborz Jahanian llvm::Value *src, llvm::Value *dest); 144598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian virtual LValue EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF, 145598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian QualType ObjectTy, 146598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian llvm::Value *BaseValue, 147598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian const ObjCIvarDecl *Ivar, 148598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian const FieldDecl *Field, 149598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers); 150f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian virtual llvm::Value *EmitIvarOffset(CodeGen::CodeGenFunction &CGF, 151f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian ObjCInterfaceDecl *Interface, 152f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian const ObjCIvarDecl *Ivar); 1530f984268b05edab2cc555a427c441baa9c252658Chris Lattner}; 1540f984268b05edab2cc555a427c441baa9c252658Chris Lattner} // end anonymous namespace 1550f984268b05edab2cc555a427c441baa9c252658Chris Lattner 15620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 15720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 15820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic std::string SymbolNameForClass(const std::string &ClassName) { 15920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ".objc_class_" + ClassName; 16020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 16120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 16220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic std::string SymbolNameForMethod(const std::string &ClassName, const 16320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string &CategoryName, const std::string &MethodName, bool isClassMethod) 16420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov{ 16520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return "._objc_method_" + ClassName +"("+CategoryName+")"+ 16620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (isClassMethod ? "+" : "-") + MethodName; 16720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 16820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 169dce1406f1c1f572cfd61c494546572d63461c741Chris LattnerCGObjCGNU::CGObjCGNU(CodeGen::CodeGenModule &cgm) 170dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner : CGM(cgm), TheModule(CGM.getModule()) { 171e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner IntTy = cast<llvm::IntegerType>( 172e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner CGM.getTypes().ConvertType(CGM.getContext().IntTy)); 173e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner LongTy = cast<llvm::IntegerType>( 174e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner CGM.getTypes().ConvertType(CGM.getContext().LongTy)); 175dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner 1763a5013cab1162118bd5bcf00a36c52e19a319f87Sebastian Redl Zeros[0] = llvm::ConstantInt::get(LongTy, 0); 17720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros[1] = Zeros[0]; 17820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULLPtr = llvm::ConstantPointerNull::get( 17920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(llvm::Type::Int8Ty)); 180391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // C string type. Used in lots of places. 181391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty = 182391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PointerType::getUnqual(llvm::Type::Int8Ty); 183391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // Get the selector Type. 184e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner SelectorTy = cast<llvm::PointerType>( 185e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner CGM.getTypes().ConvertType(CGM.getContext().getObjCSelType())); 186e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner 187391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToIntTy = llvm::PointerType::getUnqual(IntTy); 188391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrTy = PtrToInt8Ty; 189391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 190391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // Object type 191b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian IdTy = cast<llvm::PointerType>( 192b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian CGM.getTypes().ConvertType(CGM.getContext().getObjCIdType())); 193391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 194391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // IMP type 195391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner std::vector<const llvm::Type*> IMPArgs; 196391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPArgs.push_back(IdTy); 197391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPArgs.push_back(SelectorTy); 198391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPTy = llvm::FunctionType::get(IdTy, IMPArgs, true); 19920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 20020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// This has to perform the lookup every time, since posing and related 20120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// techniques can modify the name -> class mapping. 20245d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbarllvm::Value *CGObjCGNU::GetClass(CGBuilderTy &Builder, 203ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar const ObjCInterfaceDecl *OID) { 204d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner llvm::Value *ClassName = CGM.GetAddrOfConstantCString(OID->getNameAsString()); 205ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar ClassName = Builder.CreateStructGEP(ClassName, 0); 206ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar 20726c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian std::vector<const llvm::Type*> Params(1, PtrToInt8Ty); 20820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassLookupFn = 20926c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian CGM.CreateRuntimeFunction(llvm::FunctionType::get(IdTy, 21026c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian Params, 21126c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian true), 21226c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian "objc_lookup_class"); 21320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateCall(ClassLookupFn, ClassName); 214391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 215391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 2168e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner/// GetSelector - Return the pointer to the unique'd string for this selector. 21745d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbarllvm::Value *CGObjCGNU::GetSelector(CGBuilderTy &Builder, Selector Sel) { 2188e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner // FIXME: uniquing on the string is wasteful, unique on Sel instead! 219077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner llvm::GlobalAlias *&US = UntypedSelectors[Sel.getAsString()]; 2208e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner if (US == 0) 2218e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner US = new llvm::GlobalAlias(llvm::PointerType::getUnqual(SelectorTy), 2228e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner llvm::GlobalValue::InternalLinkage, 2238e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner ".objc_untyped_selector_alias", 2248e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner NULL, &TheModule); 2258e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2268e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner return Builder.CreateLoad(US); 2278e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2288e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner} 2298e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2305e7dcc62e4637591959f9c372f6c5258d0d263e0Chris Lattnerllvm::Constant *CGObjCGNU::MakeConstantString(const std::string &Str, 2315e7dcc62e4637591959f9c372f6c5258d0d263e0Chris Lattner const std::string &Name) { 23220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * ConstStr = llvm::ConstantArray::get(Str); 23320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstStr = new llvm::GlobalVariable(ConstStr->getType(), true, 23420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 23520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstStr, Name, &TheModule); 23620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return llvm::ConstantExpr::getGetElementPtr(ConstStr, Zeros, 2); 23720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 23820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeGlobal(const llvm::StructType *Ty, 23920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name) { 24020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *C = llvm::ConstantStruct::get(Ty, V); 24120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return new llvm::GlobalVariable(Ty, false, 24220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, C, Name, &TheModule); 24320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 24420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeGlobal(const llvm::ArrayType *Ty, 24520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name) { 24620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *C = llvm::ConstantArray::get(Ty, V); 24720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return new llvm::GlobalVariable(Ty, false, 24820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, C, Name, &TheModule); 24920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 25020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 25120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate an NSConstantString object. 25220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//TODO: In case there are any crazy people still using the GNU runtime without 25320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//an OpenStep implementation, this should let them select their own class for 25420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//constant strings. 255bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbarllvm::Constant *CGObjCGNU::GenerateConstantString(const std::string &Str) { 25620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Ivars; 25720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(NULLPtr); 25813fd7e5111032f54b538dd66d035b0ccc1f82467Chris Lattner Ivars.push_back(MakeConstantString(Str)); 259bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbar Ivars.push_back(llvm::ConstantInt::get(IntTy, Str.size())); 26020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ObjCStr = MakeGlobal( 26120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, IntTy, NULL), 26220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars, ".objc_str"); 26320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.push_back( 26420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(ObjCStr, PtrToInt8Ty)); 26520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ObjCStr; 26620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 26720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 26820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///Generates a message send where the super is the receiver. This is a message 26920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///send to self with special delivery semantics indicating which class's method 27020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///should be called. 2718f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCodeGen::RValue 2728f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCGObjCGNU::GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, 2737f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 2747f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 275f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *Class, 2767ce77920a35060f1c8dd72e541e42ce296ccd168Fariborz Jahanian bool isCategoryImpl, 277f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 27819cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 27919cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs) { 280b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian llvm::Value *cmd = GetSelector(CGF.Builder, Sel); 281b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian 282b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian CallArgList ActualArgs; 283b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian 284b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian ActualArgs.push_back( 285b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian std::make_pair(RValue::get(CGF.Builder.CreateBitCast(Receiver, IdTy)), 286b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian CGF.getContext().getObjCIdType())); 287b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian ActualArgs.push_back(std::make_pair(RValue::get(cmd), 288b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian CGF.getContext().getObjCSelType())); 289b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); 290b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian 291b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian CodeGenTypes &Types = CGM.getTypes(); 292b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian const CGFunctionInfo &FnInfo = Types.getFunctionInfo(ResultType, ActualArgs); 293b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian const llvm::FunctionType *impType = Types.GetFunctionType(FnInfo, false); 294b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian 295b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian 296f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *SuperClass = Class->getSuperClass(); 29720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // TODO: This should be cached, not looked up every time. 2988f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *ReceiverClass = GetClass(CGF.Builder, SuperClass); 299b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian 300b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian 30120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Construct the structure used to look up the IMP 30220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCSuperTy = llvm::StructType::get(Receiver->getType(), 30320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IdTy, NULL); 3048f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *ObjCSuper = CGF.Builder.CreateAlloca(ObjCSuperTy); 305b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian 3068f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar CGF.Builder.CreateStore(Receiver, CGF.Builder.CreateStructGEP(ObjCSuper, 0)); 3078f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar CGF.Builder.CreateStore(ReceiverClass, CGF.Builder.CreateStructGEP(ObjCSuper, 1)); 30820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 30920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the IMP 31026c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian std::vector<const llvm::Type*> Params; 31126c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian Params.push_back(llvm::PointerType::getUnqual(ObjCSuperTy)); 31226c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian Params.push_back(SelectorTy); 31320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *lookupFunction = 31426c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian CGM.CreateRuntimeFunction(llvm::FunctionType::get( 31526c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian llvm::PointerType::getUnqual(impType), Params, true), 31626c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian "objc_msg_lookup_super"); 31726c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian 31820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *lookupArgs[] = {ObjCSuper, cmd}; 3198f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *imp = CGF.Builder.CreateCall(lookupFunction, lookupArgs, 32020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov lookupArgs+2); 32120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 322b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian return CGF.EmitCall(FnInfo, imp, ActualArgs); 32320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 32420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 32520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate code for a message send expression. 3268f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCodeGen::RValue 3278f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCGObjCGNU::GenerateMessageSend(CodeGen::CodeGenFunction &CGF, 3287f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 3297f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 330f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 33119cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 33219cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs) { 3337f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar llvm::Value *cmd = GetSelector(CGF.Builder, Sel); 334b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian CallArgList ActualArgs; 335b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian 336b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian ActualArgs.push_back( 337b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian std::make_pair(RValue::get(CGF.Builder.CreateBitCast(Receiver, IdTy)), 338b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian CGF.getContext().getObjCIdType())); 339b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian ActualArgs.push_back(std::make_pair(RValue::get(cmd), 340b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian CGF.getContext().getObjCSelType())); 341b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); 342b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian 343b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian CodeGenTypes &Types = CGM.getTypes(); 344b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian const CGFunctionInfo &FnInfo = Types.getFunctionInfo(ResultType, ActualArgs); 345b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian const llvm::FunctionType *impType = Types.GetFunctionType(FnInfo, false); 3460f984268b05edab2cc555a427c441baa9c252658Chris Lattner 34726c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian std::vector<const llvm::Type*> Params; 34826c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian Params.push_back(Receiver->getType()); 34926c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian Params.push_back(SelectorTy); 3500f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Constant *lookupFunction = 35126c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian CGM.CreateRuntimeFunction(llvm::FunctionType::get( 35226c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian llvm::PointerType::getUnqual(impType), Params, true), 35326c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian "objc_msg_lookup"); 35426c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian 3558f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *imp = CGF.Builder.CreateCall2(lookupFunction, Receiver, cmd); 3563eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner 357b3716efb0966620f205c939b671b579ad331ca0dFariborz Jahanian return CGF.EmitCall(FnInfo, imp, ActualArgs); 35820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 35920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 36020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generates a MethodList. Used in construction of a objc_class and 36120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// objc_category structures. 36220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateMethodList(const std::string &ClassName, 363a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const std::string &CategoryName, 364a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const llvm::SmallVectorImpl<Selector> &MethodSels, 36520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes, 36620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethodList) { 36720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 36820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodTy = llvm::StructType::get( 36920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Really a selector, but the runtime creates it us. 37020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Method types 37120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(IMPTy), //Method pointer 37220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 37320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Methods; 37420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 37520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = MethodTypes.size(); i < e; ++i) { 37620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 377077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner llvm::Constant *C = 378077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner CGM.GetAddrOfConstantCString(MethodSels[i].getAsString()); 379a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner Elements.push_back(llvm::ConstantExpr::getGetElementPtr(C, Zeros, 2)); 38020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 38120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(MethodTypes[i], Zeros, 2)); 38220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Method = 38320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getFunction(SymbolNameForMethod(ClassName, CategoryName, 384077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner MethodSels[i].getAsString(), 385550b8db03c0bb1b006d2ff63d4febda3db16002fChris Lattner isClassMethodList)); 38620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Method = llvm::ConstantExpr::getBitCast(Method, 38720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(IMPTy)); 38820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Method); 38920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantStruct::get(ObjCMethodTy, Elements)); 39020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 39120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 39220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of method structures 39320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCMethodArrayTy = llvm::ArrayType::get(ObjCMethodTy, 394a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner MethodSels.size()); 39520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MethodArray = llvm::ConstantArray::get(ObjCMethodArrayTy, 396fba676396703e87a5034e5f308aa30a633468f66Chris Lattner Methods); 39720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 39820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Structure containing list pointer, array and array count 39920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<const llvm::Type*, 16> ObjCMethodListFields; 40020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PATypeHolder OpaqueNextTy = llvm::OpaqueType::get(); 40120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type *NextPtrTy = llvm::PointerType::getUnqual(OpaqueNextTy); 40220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodListTy = llvm::StructType::get(NextPtrTy, 40320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, 40420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCMethodArrayTy, 40520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 40620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Refine next pointer type to concrete type 40720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::OpaqueType>( 40820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov OpaqueNextTy.get())->refineAbstractTypeTo(ObjCMethodListTy); 40920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCMethodListTy = llvm::cast<llvm::StructType>(OpaqueNextTy.get()); 41020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 41120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.clear(); 41220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantPointerNull::get( 41320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(ObjCMethodListTy))); 41420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantInt::get(llvm::Type::Int32Ty, 41520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodTypes.size())); 41620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(MethodArray); 41720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 41820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 41920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCMethodListTy, Methods, ".objc_method_list"); 42020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 42120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 42220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generates an IvarList. Used in construction of a objc_class. 42320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateIvarList( 42420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 42520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 42620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets) { 42720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 42820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCIvarTy = llvm::StructType::get( 42920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 43020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 43120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, 43220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 43320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Ivars; 43420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 43520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = IvarNames.size() ; i < e ; i++) { 43620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 43720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(IvarNames[i], 43820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 43920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(IvarTypes[i], 44020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 44120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(IvarOffsets[i]); 44220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(llvm::ConstantStruct::get(ObjCIvarTy, Elements)); 44320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 44420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 44520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of method structures 44620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCIvarArrayTy = llvm::ArrayType::get(ObjCIvarTy, 44720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IvarNames.size()); 44820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 44920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 45020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 451e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner Elements.push_back(llvm::ConstantInt::get(IntTy, (int)IvarNames.size())); 45220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantArray::get(ObjCIvarArrayTy, Ivars)); 45320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Structure containing array and array count 45420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCIvarListTy = llvm::StructType::get(IntTy, 45520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCIvarArrayTy, 45620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 45720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 45820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 45920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCIvarListTy, Elements, ".objc_ivar_list"); 4600f984268b05edab2cc555a427c441baa9c252658Chris Lattner} 4610f984268b05edab2cc555a427c441baa9c252658Chris Lattner 46220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate a class structure 46320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateClassStructure( 46420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClass, 46520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass, 46620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned info, 467d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner const char *Name, 46820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Version, 46920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceSize, 47020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IVars, 47120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Methods, 47220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Protocols) { 47320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Set up the class structure 47420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Note: Several of these are char*s when they should be ids. This is 47520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // because the runtime performs this translation on load. 47620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ClassTy = llvm::StructType::get( 47720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // class_pointer 47820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // super_class 47920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // name 48020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // version 48120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // info 48220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // instance_size 48320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IVars->getType(), // ivars 48420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods->getType(), // methods 48520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // These are all filled in by the runtime, so we pretend 48620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // dtable 48720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // subclass_list 48820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // sibling_class 48920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // protocols 49020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // gc_object_type 49120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 49220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Zero = llvm::ConstantInt::get(LongTy, 0); 49320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *NullP = 494e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner llvm::ConstantPointerNull::get(PtrTy); 49520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Fill in the structure 49620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 49720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(MetaClass, PtrToInt8Ty)); 49820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(SuperClass); 499d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner Elements.push_back(MakeConstantString(Name, ".class_name")); 50020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Zero); 50120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, info)); 50220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(InstanceSize); 50320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(IVars); 50420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Methods); 50520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 50620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 50720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 50820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(Protocols, PtrTy)); 50920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 51020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 5111565e0364b05d163640dd2b6feed43bae67df4fdChris Lattner return MakeGlobal(ClassTy, Elements, SymbolNameForClass(Name)); 51220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 51320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 51420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateProtocolMethodList( 51520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 51620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes) { 51720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 51820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodDescTy = llvm::StructType::get( 51920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Really a selector, but the runtime does the casting for us. 52020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 52120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 52220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Methods; 52320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 52420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = MethodTypes.size() ; i < e ; i++) { 52520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 52620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(MethodNames[i], 52720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 52820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 52920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(MethodTypes[i], Zeros, 2)); 53020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantStruct::get(ObjCMethodDescTy, Elements)); 53120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 53220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCMethodArrayTy = llvm::ArrayType::get(ObjCMethodDescTy, 53320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodNames.size()); 53420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Array = llvm::ConstantArray::get(ObjCMethodArrayTy, Methods); 53520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodDescListTy = llvm::StructType::get( 53620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, ObjCMethodArrayTy, NULL); 53720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.clear(); 53820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantInt::get(IntTy, MethodNames.size())); 53920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(Array); 54020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCMethodDescListTy, Methods, ".objc_method_list"); 54120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 54220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// Create the protocol list structure used in classes, categories and so on 54320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateProtocolList( 54420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols) { 54520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ProtocolArrayTy = llvm::ArrayType::get(PtrToInt8Ty, 54620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Protocols.size()); 54720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ProtocolListTy = llvm::StructType::get( 54820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, //Should be a recurisve pointer, but it's always NULL here. 54920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy,//FIXME: Should be size_t 55020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ProtocolArrayTy, 55120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 55220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 55320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (const std::string *iter = Protocols.begin(), *endIter = Protocols.end(); 55420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != endIter ; iter++) { 55520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Ptr = 55620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(ExistingProtocols[*iter], PtrToInt8Ty); 55720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Ptr); 55820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 55920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * ProtocolArray = llvm::ConstantArray::get(ProtocolArrayTy, 56020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements); 56120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 56220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 563e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner Elements.push_back(llvm::ConstantInt::get(LongTy, Protocols.size())); 56420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ProtocolArray); 56520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ProtocolListTy, Elements, ".objc_protocol_list"); 56620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 56720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 56845d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbarllvm::Value *CGObjCGNU::GenerateProtocolRef(CGBuilderTy &Builder, 569af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar const ObjCProtocolDecl *PD) { 570d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner return ExistingProtocols[PD->getNameAsString()]; 57120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 57220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 573af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbarvoid CGObjCGNU::GenerateProtocol(const ObjCProtocolDecl *PD) { 574af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar ASTContext &Context = CGM.getContext(); 5758ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner std::string ProtocolName = PD->getNameAsString(); 576af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 577af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::protocol_iterator PI = PD->protocol_begin(), 578af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar E = PD->protocol_end(); PI != E; ++PI) 579d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Protocols.push_back((*PI)->getNameAsString()); 580af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodNames; 581af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 582af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::instmeth_iterator iter = PD->instmeth_begin(), 583af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar E = PD->instmeth_end(); iter != E; iter++) { 584af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar std::string TypeStr; 585af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar Context.getObjCEncodingForMethodDecl(*iter, TypeStr); 586af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar InstanceMethodNames.push_back( 587077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner CGM.GetAddrOfConstantCString((*iter)->getSelector().getAsString())); 5886143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 589af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar } 590af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar // Collect information about class methods: 591af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodNames; 592af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 593af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::classmeth_iterator iter = PD->classmeth_begin(), 594af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar endIter = PD->classmeth_end() ; iter != endIter ; iter++) { 595af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar std::string TypeStr; 596af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 597af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar ClassMethodNames.push_back( 598077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner CGM.GetAddrOfConstantCString((*iter)->getSelector().getAsString())); 5996143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 600af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar } 60120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 60220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ProtocolList = GenerateProtocolList(Protocols); 60320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceMethodList = 60420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolMethodList(InstanceMethodNames, InstanceMethodTypes); 60520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassMethodList = 60620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolMethodList(ClassMethodNames, ClassMethodTypes); 60720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Protocols are objects containing lists of the methods implemented and 60820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // protocols adopted. 60920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ProtocolTy = llvm::StructType::get(IdTy, 61020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 61120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ProtocolList->getType(), 61220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov InstanceMethodList->getType(), 61320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassMethodList->getType(), 61420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 61520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 61620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // The isa pointer must be set to a magic number so the runtime knows it's 61720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // the correct layout. 61820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getIntToPtr( 61920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, ProtocolVersion), IdTy)); 62020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(ProtocolName, ".objc_protocol_name")); 62120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ProtocolList); 62220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(InstanceMethodList); 62320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ClassMethodList); 62420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ExistingProtocols[ProtocolName] = 62520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(MakeGlobal(ProtocolTy, Elements, 62620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_protocol"), IdTy); 62720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 62820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 6297ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarvoid CGObjCGNU::GenerateCategory(const ObjCCategoryImplDecl *OCD) { 6308ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner std::string ClassName = OCD->getClassInterface()->getNameAsString(); 6318ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner std::string CategoryName = OCD->getNameAsString(); 6327ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance methods 6337ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> InstanceMethodSels; 6347ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 6350701bbb228dfd87e1fe82a0a4b7b9facfecb43daSteve Naroff for (ObjCCategoryImplDecl::instmeth_iterator iter = OCD->instmeth_begin(), 6367ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OCD->instmeth_end() ; iter != endIter ; iter++) { 6377ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodSels.push_back((*iter)->getSelector()); 6387ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 6397ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getContext().getObjCEncodingForMethodDecl(*iter,TypeStr); 6407ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 6417ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6427ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6437ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about class methods 6447ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> ClassMethodSels; 6457ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 6460701bbb228dfd87e1fe82a0a4b7b9facfecb43daSteve Naroff for (ObjCCategoryImplDecl::classmeth_iterator iter = OCD->classmeth_begin(), 6477ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OCD->classmeth_end() ; iter != endIter ; iter++) { 6487ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodSels.push_back((*iter)->getSelector()); 6497ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 6507ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getContext().getObjCEncodingForMethodDecl(*iter,TypeStr); 6517ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 6527ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6537ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6547ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect the names of referenced protocols 6557ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 6567ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCInterfaceDecl *ClassDecl = OCD->getClassInterface(); 6577ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCList<ObjCProtocolDecl> &Protos =ClassDecl->getReferencedProtocols(); 6587ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCList<ObjCProtocolDecl>::iterator I = Protos.begin(), 6597ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar E = Protos.end(); I != E; ++I) 660d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Protocols.push_back((*I)->getNameAsString()); 6617ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 66220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 66320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(CategoryName)); 66420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(ClassName)); 66520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Instance method list 66620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(GenerateMethodList( 667a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassName, CategoryName, InstanceMethodSels, InstanceMethodTypes, 66820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov false), PtrTy)); 66920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Class method list 67020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(GenerateMethodList( 671a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassName, CategoryName, ClassMethodSels, ClassMethodTypes, true), 67220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy)); 67320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Protocol list 67420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast( 67520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolList(Protocols), PtrTy)); 67620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Categories.push_back(llvm::ConstantExpr::getBitCast( 67720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeGlobal(llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, PtrTy, 67820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, PtrTy, NULL), Elements), PtrTy)); 67920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 6807ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6817ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarvoid CGObjCGNU::GenerateClass(const ObjCImplementationDecl *OID) { 6827ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ASTContext &Context = CGM.getContext(); 6837ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6847ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the superclass name. 6857ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCInterfaceDecl * SuperClassDecl = 6867ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar OID->getClassInterface()->getSuperClass(); 6878ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner std::string SuperClassName; 6888ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner if (SuperClassDecl) 6898ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner SuperClassName = SuperClassDecl->getNameAsString(); 6907ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6917ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the class name 6927ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjCInterfaceDecl * ClassDecl = (ObjCInterfaceDecl*)OID->getClassInterface(); 6938ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner std::string ClassName = ClassDecl->getNameAsString(); 6947ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6957ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the size of instances. For runtimes that support late-bound instances 6967ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // this should probably be something different (size just of instance 6977ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // varaibles in this class, not superclasses?). 6987ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar int instanceSize = 0; 6997ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::Type *ObjTy = 0; 7007ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar if (!LateBoundIVars()) { 7017ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjTy = CGM.getTypes().ConvertType(Context.getObjCInterfaceType(ClassDecl)); 702491c7b77cd8ec8570f646d43b937a5aec688bcbfDaniel Dunbar instanceSize = CGM.getTargetData().getTypePaddedSize(ObjTy); 7037ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } else { 7047ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // This is required by newer ObjC runtimes. 7057ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar assert(0 && "Late-bound instance variables not yet supported"); 7067ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7077ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7087ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance variables. 7097ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarNames; 7107ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarTypes; 7117ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarOffsets; 7127ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::StructLayout *Layout = 7137ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getTargetData().getStructLayout(cast<llvm::StructType>(ObjTy)); 7147ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjTy = llvm::PointerType::getUnqual(ObjTy); 7157ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCInterfaceDecl::ivar_iterator iter = ClassDecl->ivar_begin(), 7167ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = ClassDecl->ivar_end() ; iter != endIter ; iter++) { 7177ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Store the name 718d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner IvarNames.push_back(CGM.GetAddrOfConstantCString((*iter) 719d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner ->getNameAsString())); 7207ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the type encoding for this ivar 7217ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7220d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar Context.getObjCEncodingForType((*iter)->getType(), TypeStr); 7237ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar IvarTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7247ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the offset 725fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian FieldDecl *Field = ClassDecl->lookupFieldDeclForIvar(Context, (*iter)); 7267ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar int offset = 727fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian (int)Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(Field)); 7287ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar IvarOffsets.push_back( 7297ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::ConstantInt::get(llvm::Type::Int32Ty, offset)); 7307ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7317ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7327ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance methods 7337ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> InstanceMethodSels; 7347ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 7357ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCImplementationDecl::instmeth_iterator iter = OID->instmeth_begin(), 7367ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OID->instmeth_end() ; iter != endIter ; iter++) { 7377ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodSels.push_back((*iter)->getSelector()); 7387ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7397ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 7407ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7417ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7427ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7437ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about class methods 7447ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> ClassMethodSels; 7457ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 7467ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCImplementationDecl::classmeth_iterator iter = OID->classmeth_begin(), 7477ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OID->classmeth_end() ; iter != endIter ; iter++) { 7487ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodSels.push_back((*iter)->getSelector()); 7497ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7507ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 7517ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7527ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7537ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect the names of referenced protocols 7547ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 7557ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCList<ObjCProtocolDecl> &Protos =ClassDecl->getReferencedProtocols(); 7567ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCList<ObjCProtocolDecl>::iterator I = Protos.begin(), 7577ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar E = Protos.end(); I != E; ++I) 758d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Protocols.push_back((*I)->getNameAsString()); 7597ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7607ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7617ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 76220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the superclass pointer. 76320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass; 7648ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner if (!SuperClassName.empty()) { 76520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SuperClass = MakeConstantString(SuperClassName, ".super_class_name"); 76620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } else { 767e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner SuperClass = llvm::ConstantPointerNull::get(PtrToInt8Ty); 76820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 76920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Empty vector used to construct empty method lists 77020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<llvm::Constant*, 1> empty; 77120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate the method and instance variable lists 77220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MethodList = GenerateMethodList(ClassName, "", 773a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner InstanceMethodSels, InstanceMethodTypes, false); 77420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassMethodList = GenerateMethodList(ClassName, "", 775a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassMethodSels, ClassMethodTypes, true); 77620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IvarList = GenerateIvarList(IvarNames, IvarTypes, 77720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IvarOffsets); 77820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //Generate metaclass for class methods 77920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClassStruct = GenerateClassStructure(NULLPtr, 7801565e0364b05d163640dd2b6feed43bae67df4fdChris Lattner NULLPtr, 0x2L, /*name*/"", 0, Zeros[0], GenerateIvarList( 78120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov empty, empty, empty), ClassMethodList, NULLPtr); 78220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate the class structure 7838ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner llvm::Constant *ClassStruct = 7848ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner GenerateClassStructure(MetaClassStruct, SuperClass, 0x1L, 7858ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner ClassName.c_str(), 0, 7863a5013cab1162118bd5bcf00a36c52e19a319f87Sebastian Redl llvm::ConstantInt::get(LongTy, instanceSize), IvarList, 78720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodList, GenerateProtocolList(Protocols)); 78820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Add class structure to list to be added to the symtab later 78920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassStruct = llvm::ConstantExpr::getBitCast(ClassStruct, PtrToInt8Ty); 79020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(ClassStruct); 79120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 79220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 79320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Function *CGObjCGNU::ModuleInitFunction() { 79420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Only emit an ObjC load function if no Objective-C stuff has been called 79520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (Classes.empty() && Categories.empty() && ConstantStrings.empty() && 79620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ExistingProtocols.empty() && TypedSelectors.empty() && 7975f58b911304f7d114f929d1726a09cd1c828a5ddAnton Korobeynikov UntypedSelectors.empty()) 79820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return NULL; 7991b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman 800e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner const llvm::StructType *SelStructTy = dyn_cast<llvm::StructType>( 801e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner SelectorTy->getElementType()); 802e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner const llvm::Type *SelStructPtrTy = SelectorTy; 803e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner bool isSelOpaque = false; 804e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner if (SelStructTy == 0) { 805e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner SelStructTy = llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, NULL); 806e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner SelStructPtrTy = llvm::PointerType::getUnqual(SelStructTy); 807e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner isSelOpaque = true; 808e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner } 809e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner 8101b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman // Name the ObjC types to make the IR a bit easier to read 811e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner TheModule.addTypeName(".objc_selector", SelStructPtrTy); 8121b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_id", IdTy); 8131b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_imp", IMPTy); 8141b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman 81520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 81620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate statics list: 81720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *StaticsArrayTy = llvm::ArrayType::get(PtrToInt8Ty, 81820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.size() + 1); 81920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.push_back(NULLPtr); 82020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString("NSConstantString", 82120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_static_class_name")); 82220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantArray::get(StaticsArrayTy, ConstantStrings)); 82320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *StaticsListTy = 82420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType::get(PtrToInt8Ty, StaticsArrayTy, NULL); 825630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type *StaticsListPtrTy = llvm::PointerType::getUnqual(StaticsListTy); 82620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Statics = 82720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeGlobal(StaticsListTy, Elements, ".objc_statics"); 8284e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner llvm::ArrayType *StaticsListArrayTy = 829630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::ArrayType::get(StaticsListPtrTy, 2); 8304e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.clear(); 8314e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.push_back(Statics); 832630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(llvm::Constant::getNullValue(StaticsListPtrTy)); 8334e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Statics = MakeGlobal(StaticsListArrayTy, Elements, ".objc_statics_ptr"); 83420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Statics = llvm::ConstantExpr::getBitCast(Statics, PtrTy); 83520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of classes, categories, and constant objects 83620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ClassListTy = llvm::ArrayType::get(PtrToInt8Ty, 83720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.size() + Categories.size() + 2); 838e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner llvm::StructType *SymTabTy = llvm::StructType::get(LongTy, SelStructPtrTy, 839630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type::Int16Ty, 840630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type::Int16Ty, 841630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner ClassListTy, NULL); 84220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 84320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 84420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Pointer to an array of selectors used in this module. 84520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Selectors; 84620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (std::map<TypedSelector, llvm::GlobalAlias*>::iterator 84720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter = TypedSelectors.begin(), iterEnd = TypedSelectors.end(); 84820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd ; ++iter) { 849630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(MakeConstantString(iter->first.first, ".objc_sel_name")); 850630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(MakeConstantString(iter->first.second, 851630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner ".objc_sel_types")); 85220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 85320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 85420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 85520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (llvm::StringMap<llvm::GlobalAlias*>::iterator 85620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter = UntypedSelectors.begin(), iterEnd = UntypedSelectors.end(); 857630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner iter != iterEnd; ++iter) { 85820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 859630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner MakeConstantString(iter->getKeyData(), ".objc_sel_name")); 86020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 86120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 86220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 86320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 86420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 86520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 86620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 86720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 86820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of static selectors 86920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, Selectors.size() )); 87020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SelectorList = MakeGlobal( 87120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType::get(SelStructTy, Selectors.size()), Selectors, 87220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_selector_list"); 873e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner Elements.push_back(llvm::ConstantExpr::getBitCast(SelectorList, 874e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner SelStructPtrTy)); 87520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 87620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Now that all of the static selectors exist, create pointers to them. 87720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov int index = 0; 87820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (std::map<TypedSelector, llvm::GlobalAlias*>::iterator 87920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter=TypedSelectors.begin(), iterEnd =TypedSelectors.end(); 88020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; ++iter) { 88120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Idxs[] = {Zeros[0], 88220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, index++), Zeros[0]}; 883e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner llvm::Constant *SelPtr = new llvm::GlobalVariable(SelStructPtrTy, 884e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner true, llvm::GlobalValue::InternalLinkage, 88520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(SelectorList, Idxs, 2), 88620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_ptr", &TheModule); 887e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner // If selectors are defined as an opaque type, cast the pointer to this 888e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner // type. 889e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner if (isSelOpaque) { 890e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner SelPtr = llvm::ConstantExpr::getBitCast(SelPtr, 891e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner llvm::PointerType::getUnqual(SelectorTy)); 892e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner } 89320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (*iter).second->setAliasee(SelPtr); 89420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 89520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (llvm::StringMap<llvm::GlobalAlias*>::iterator 89620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter=UntypedSelectors.begin(), iterEnd = UntypedSelectors.end(); 89720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; iter++) { 89820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Idxs[] = {Zeros[0], 89920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, index++), Zeros[0]}; 900e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner llvm::Constant *SelPtr = new llvm::GlobalVariable(SelStructPtrTy, true, 90120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 90220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(SelectorList, Idxs, 2), 90320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_ptr", &TheModule); 904e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner // If selectors are defined as an opaque type, cast the pointer to this 905e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner // type. 906e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner if (isSelOpaque) { 907e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner SelPtr = llvm::ConstantExpr::getBitCast(SelPtr, 908e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner llvm::PointerType::getUnqual(SelectorTy)); 909e160c9b09d2f5098dfdcca99b9c6485487e0c252Chris Lattner } 91020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (*iter).second->setAliasee(SelPtr); 91120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 91220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of classes defined. 91320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(llvm::Type::Int16Ty, 91420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.size())); 91520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of categories defined 91620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(llvm::Type::Int16Ty, 91720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Categories.size())); 91820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an array of classes, then categories, then static object instances 91920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.insert(Classes.end(), Categories.begin(), Categories.end()); 92020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // NULL-terminated list of static object instances (mainly constant strings) 92120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(Statics); 92220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(NULLPtr); 92320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassList = llvm::ConstantArray::get(ClassListTy, Classes); 92420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ClassList); 92520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Construct the symbol table 92620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SymTab= MakeGlobal(SymTabTy, Elements); 92720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 92820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // The symbol table is contained in a module which has some version-checking 92920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // constants 93020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType * ModuleTy = llvm::StructType::get(LongTy, LongTy, 93120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, llvm::PointerType::getUnqual(SymTabTy), NULL); 93220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 93320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Runtime version used for compatibility checking. 93420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, RuntimeVersion)); 93520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //FIXME: Should be sizeof(ModuleTy) 93620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, 16)); 93720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //FIXME: Should be the path to the file where this module was declared 93820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 93920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(SymTab); 94020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Module = MakeGlobal(ModuleTy, Elements); 94120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 94220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create the load function calling the runtime entry point with the module 94320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // structure 94420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<const llvm::Type*> VoidArgs; 94520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Function * LoadFunction = llvm::Function::Create( 94620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType::get(llvm::Type::VoidTy, VoidArgs, false), 94720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, ".objc_load_function", 94820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov &TheModule); 94920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::BasicBlock *EntryBB = llvm::BasicBlock::Create("entry", LoadFunction); 95045d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 95120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.SetInsertPoint(EntryBB); 95226c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian 95326c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian std::vector<const llvm::Type*> Params(1, 95426c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian llvm::PointerType::getUnqual(ModuleTy)); 95526c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian llvm::Value *Register = CGM.CreateRuntimeFunction(llvm::FunctionType::get( 95626c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian llvm::Type::VoidTy, Params, true), "__objc_exec_class"); 95720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateCall(Register, Module); 95820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateRetVoid(); 95920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return LoadFunction; 96020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 9617ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 962679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanianllvm::Function *CGObjCGNU::GenerateMethod(const ObjCMethodDecl *OMD, 963679a502d462ef819e6175b58e255ca3f3391e7cfFariborz Jahanian const ObjCContainerDecl *CD) { 9647ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCCategoryImplDecl *OCD = 9653e0a540b6d846178857289ec0eb8470a278d11a3Steve Naroff dyn_cast<ObjCCategoryImplDecl>(OMD->getDeclContext()); 966077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner std::string CategoryName = OCD ? OCD->getNameAsString() : ""; 967077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner std::string ClassName = OMD->getClassInterface()->getNameAsString(); 968077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner std::string MethodName = OMD->getSelector().getAsString(); 969f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor bool isClassMethod = !OMD->isInstanceMethod(); 970391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 971541b63b1a9db77e4a8670e9823711c2c12e58afbDaniel Dunbar CodeGenTypes &Types = CGM.getTypes(); 97245c25ba11cbf8c9a461def5b03f6ee9481e06769Daniel Dunbar const llvm::FunctionType *MethodTy = 973541b63b1a9db77e4a8670e9823711c2c12e58afbDaniel Dunbar Types.GetFunctionType(Types.getFunctionInfo(OMD), OMD->isVariadic()); 97420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string FunctionName = SymbolNameForMethod(ClassName, CategoryName, 97520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodName, isClassMethod); 97620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 977984d0b414bc76d3530b9bc55a5a55834ba76c607Gabor Greif llvm::Function *Method = llvm::Function::Create(MethodTy, 978391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::GlobalValue::InternalLinkage, 97920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov FunctionName, 980391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner &TheModule); 981391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner return Method; 982391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 983391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 98449f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbarllvm::Function *CGObjCGNU::GetPropertyGetFunction() { 98549f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar return 0; 98649f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar} 98749f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar 98849f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbarllvm::Function *CGObjCGNU::GetPropertySetFunction() { 98949f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar return 0; 99049f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar} 99149f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar 99249f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbarllvm::Function *CGObjCGNU::EnumerationMutationFunction() { 99326c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian std::vector<const llvm::Type*> Params(1, IdTy); 99426c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian return cast<llvm::Function>(CGM.CreateRuntimeFunction( 99526c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian llvm::FunctionType::get(llvm::Type::VoidTy, Params, true), 99626c8294dacc2efc83d8d560593ff863e7a32a48fFariborz Jahanian "objc_enumerationMutation")); 9972abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson} 9982abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 999bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanianvoid CGObjCGNU::EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, 1000bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian const Stmt &S) { 1001bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian CGF.ErrorUnsupported(&S, "@try/@synchronized statement"); 100264d5d6c5903157c521af496479d06dc26032d718Anders Carlsson} 100364d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 100464d5d6c5903157c521af496479d06dc26032d718Anders Carlssonvoid CGObjCGNU::EmitThrowStmt(CodeGen::CodeGenFunction &CGF, 100549f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar const ObjCAtThrowStmt &S) { 100664d5d6c5903157c521af496479d06dc26032d718Anders Carlsson CGF.ErrorUnsupported(&S, "@throw statement"); 100764d5d6c5903157c521af496479d06dc26032d718Anders Carlsson} 100864d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 10093e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanianllvm::Value * CGObjCGNU::EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF, 10106dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian llvm::Value *AddrWeakObj) 10116dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian{ 10126dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian return 0; 10136dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian} 10146dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian 10153e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanianvoid CGObjCGNU::EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, 10163e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian llvm::Value *src, llvm::Value *dst) 10173e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian{ 10183e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian return; 10193e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian} 10203e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian 102158626500527695865683d1d65053743de8770b60Fariborz Jahanianvoid CGObjCGNU::EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, 102258626500527695865683d1d65053743de8770b60Fariborz Jahanian llvm::Value *src, llvm::Value *dst) 102358626500527695865683d1d65053743de8770b60Fariborz Jahanian{ 102458626500527695865683d1d65053743de8770b60Fariborz Jahanian return; 102558626500527695865683d1d65053743de8770b60Fariborz Jahanian} 102658626500527695865683d1d65053743de8770b60Fariborz Jahanian 10277eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanianvoid CGObjCGNU::EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, 10287eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian llvm::Value *src, llvm::Value *dst) 10297eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian{ 10307eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian return; 10317eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian} 10327eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian 103358626500527695865683d1d65053743de8770b60Fariborz Jahanianvoid CGObjCGNU::EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF, 103458626500527695865683d1d65053743de8770b60Fariborz Jahanian llvm::Value *src, llvm::Value *dst) 103558626500527695865683d1d65053743de8770b60Fariborz Jahanian{ 103658626500527695865683d1d65053743de8770b60Fariborz Jahanian return; 103758626500527695865683d1d65053743de8770b60Fariborz Jahanian} 103858626500527695865683d1d65053743de8770b60Fariborz Jahanian 1039598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz JahanianLValue CGObjCGNU::EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF, 1040598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian QualType ObjectTy, 1041598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian llvm::Value *BaseValue, 1042598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian const ObjCIvarDecl *Ivar, 1043598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian const FieldDecl *Field, 1044598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian unsigned CVRQualifiers) { 1045598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian if (Ivar->isBitField()) 1046598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian return CGF.EmitLValueForBitfield(BaseValue, const_cast<FieldDecl *>(Field), 1047598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian CVRQualifiers); 10480bb20361a321593887f067515dd04cf109f4c74aFariborz Jahanian // TODO: Add a special case for isa (index 0) 10490bb20361a321593887f067515dd04cf109f4c74aFariborz Jahanian unsigned Index = CGM.getTypes().getLLVMFieldNo(Field); 10500bb20361a321593887f067515dd04cf109f4c74aFariborz Jahanian llvm::Value *V = CGF.Builder.CreateStructGEP(BaseValue, Index, "tmp"); 1051598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian LValue LV = LValue::MakeAddr(V, 1052598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian Ivar->getType().getCVRQualifiers()|CVRQualifiers); 1053598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian LValue::SetObjCIvar(LV, true); 1054598d3f61b6ca854e9d3c2f3359e24468502a61aaFariborz Jahanian return LV; 10550bb20361a321593887f067515dd04cf109f4c74aFariborz Jahanian} 10560bb20361a321593887f067515dd04cf109f4c74aFariborz Jahanian 1057f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanianllvm::Value *CGObjCGNU::EmitIvarOffset(CodeGen::CodeGenFunction &CGF, 1058f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian ObjCInterfaceDecl *Interface, 1059f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian const ObjCIvarDecl *Ivar) { 1060f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian const llvm::Type *InterfaceLTy = 1061f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian CGM.getTypes().ConvertType( 1062f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian CGM.getContext().getObjCInterfaceType(Interface)); 1063f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian const llvm::StructLayout *Layout = 1064f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian CGM.getTargetData().getStructLayout(cast<llvm::StructType>(InterfaceLTy)); 1065f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian FieldDecl *Field = Interface->lookupFieldDeclForIvar(CGM.getContext(), Ivar); 1066f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian uint64_t Offset = 1067f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(Field)); 1068f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian 1069f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian return llvm::ConstantInt::get( 1070f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian CGM.getTypes().ConvertType(CGM.getContext().LongTy), 1071f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian Offset); 1072f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian} 1073f63aa3fd429cdb9145d78f0b656bc78754efedb9Fariborz Jahanian 1074c17a4d3b16a2624a76de5d7508805534545bd3bfDaniel DunbarCodeGen::CGObjCRuntime *CodeGen::CreateGNUObjCRuntime(CodeGen::CodeGenModule &CGM){ 1075dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner return new CGObjCGNU(CGM); 10760f984268b05edab2cc555a427c441baa9c252658Chris Lattner} 1077