CGObjCGNU.cpp revision 3e0a540b6d846178857289ec0eb8470a278d11a3
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> 29dce1406f1c1f572cfd61c494546572d63461c741Chris Lattnerusing namespace clang; 3046f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbarusing namespace CodeGen; 3120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovusing llvm::dyn_cast; 3220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 3320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// The version of the runtime that this class targets. Must match the version 3420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// in the runtime. 3520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic const int RuntimeVersion = 8; 3620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic const int ProtocolVersion = 2; 370f984268b05edab2cc555a427c441baa9c252658Chris Lattner 380f984268b05edab2cc555a427c441baa9c252658Chris Lattnernamespace { 39dce1406f1c1f572cfd61c494546572d63461c741Chris Lattnerclass CGObjCGNU : public CodeGen::CGObjCRuntime { 400f984268b05edab2cc555a427c441baa9c252658Chris Lattnerprivate: 41dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner CodeGen::CodeGenModule &CGM; 420f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Module &TheModule; 4320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::StructType *SelStructTy; 44391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *SelectorTy; 45391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *PtrToInt8Ty; 46391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *IMPTy; 47391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *IdTy; 48391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *IntTy; 49391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *PtrTy; 50391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *LongTy; 51391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *PtrToIntTy; 5220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Classes; 5320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Categories; 5420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> ConstantStrings; 5520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Function *LoadFunction; 5620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StringMap<llvm::Constant*> ExistingProtocols; 5720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov typedef std::pair<std::string, std::string> TypedSelector; 5820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::map<TypedSelector, llvm::GlobalAlias*> TypedSelectors; 5920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StringMap<llvm::GlobalAlias*> UntypedSelectors; 6020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Some zeros used for GEPs in lots of places. 6120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Zeros[2]; 6220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *NULLPtr; 6320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovprivate: 6420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateIvarList( 6520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 6620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 6720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets); 6820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateMethodList(const std::string &ClassName, 6920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &CategoryName, 70a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const llvm::SmallVectorImpl<Selector> &MethodSels, 7120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes, 7220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethodList); 7320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateProtocolList( 7420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols); 7520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateClassStructure( 7620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClass, 7720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass, 7820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned info, 79d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner const char *Name, 8020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Version, 8120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceSize, 8220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IVars, 8320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Methods, 8420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Protocols); 8520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateProtocolMethodList( 8620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 8720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes); 8820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeConstantString(const std::string &Str, const std::string 8920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov &Name=""); 9020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeGlobal(const llvm::StructType *Ty, 9120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name=""); 9220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeGlobal(const llvm::ArrayType *Ty, 9320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name=""); 940f984268b05edab2cc555a427c441baa9c252658Chris Lattnerpublic: 95dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner CGObjCGNU(CodeGen::CodeGenModule &cgm); 96bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbar virtual llvm::Constant *GenerateConstantString(const std::string &String); 978f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar virtual CodeGen::RValue 988f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar GenerateMessageSend(CodeGen::CodeGenFunction &CGF, 997f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 1007f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 101f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 10219cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 10319cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs); 1048f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar virtual CodeGen::RValue 1058f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, 1067f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 1077f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 108f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *Class, 109f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 11019cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 11119cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs); 11245d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar virtual llvm::Value *GetClass(CGBuilderTy &Builder, 113ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar const ObjCInterfaceDecl *OID); 11445d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar virtual llvm::Value *GetSelector(CGBuilderTy &Builder, Selector Sel); 1158e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 1167ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar virtual llvm::Function *GenerateMethod(const ObjCMethodDecl *OMD); 1177ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar virtual void GenerateCategory(const ObjCCategoryImplDecl *CMD); 1187ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar virtual void GenerateClass(const ObjCImplementationDecl *ClassDecl); 11945d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar virtual llvm::Value *GenerateProtocolRef(CGBuilderTy &Builder, 120af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar const ObjCProtocolDecl *PD); 121af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar virtual void GenerateProtocol(const ObjCProtocolDecl *PD); 12220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Function *ModuleInitFunction(); 12349f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar virtual llvm::Function *GetPropertyGetFunction(); 12449f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar virtual llvm::Function *GetPropertySetFunction(); 1252abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson virtual llvm::Function *EnumerationMutationFunction(); 12664d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 127bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian virtual void EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, 128bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian const Stmt &S); 12964d5d6c5903157c521af496479d06dc26032d718Anders Carlsson virtual void EmitThrowStmt(CodeGen::CodeGenFunction &CGF, 13064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson const ObjCAtThrowStmt &S); 1313e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian virtual llvm::Value * EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF, 1326dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian llvm::Value *AddrWeakObj); 1333e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian virtual void EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, 1343e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian llvm::Value *src, llvm::Value *dst); 13558626500527695865683d1d65053743de8770b60Fariborz Jahanian virtual void EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, 13658626500527695865683d1d65053743de8770b60Fariborz Jahanian llvm::Value *src, llvm::Value *dest); 1377eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian virtual void EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, 1387eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian llvm::Value *src, llvm::Value *dest); 13958626500527695865683d1d65053743de8770b60Fariborz Jahanian virtual void EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF, 14058626500527695865683d1d65053743de8770b60Fariborz Jahanian llvm::Value *src, llvm::Value *dest); 1410f984268b05edab2cc555a427c441baa9c252658Chris Lattner}; 1420f984268b05edab2cc555a427c441baa9c252658Chris Lattner} // end anonymous namespace 1430f984268b05edab2cc555a427c441baa9c252658Chris Lattner 14420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 14520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 14620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic std::string SymbolNameForClass(const std::string &ClassName) { 14720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ".objc_class_" + ClassName; 14820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 14920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 15020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic std::string SymbolNameForMethod(const std::string &ClassName, const 15120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string &CategoryName, const std::string &MethodName, bool isClassMethod) 15220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov{ 15320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return "._objc_method_" + ClassName +"("+CategoryName+")"+ 15420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (isClassMethod ? "+" : "-") + MethodName; 15520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 15620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 157dce1406f1c1f572cfd61c494546572d63461c741Chris LattnerCGObjCGNU::CGObjCGNU(CodeGen::CodeGenModule &cgm) 158dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner : CGM(cgm), TheModule(CGM.getModule()) { 159dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner IntTy = CGM.getTypes().ConvertType(CGM.getContext().IntTy); 160dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner LongTy = CGM.getTypes().ConvertType(CGM.getContext().LongTy); 161dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner 1623a5013cab1162118bd5bcf00a36c52e19a319f87Sebastian Redl Zeros[0] = llvm::ConstantInt::get(LongTy, 0); 16320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros[1] = Zeros[0]; 16420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULLPtr = llvm::ConstantPointerNull::get( 16520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(llvm::Type::Int8Ty)); 166391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // C string type. Used in lots of places. 167391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty = 168391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PointerType::getUnqual(llvm::Type::Int8Ty); 169391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // Get the selector Type. 17020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SelStructTy = llvm::StructType::get( 171391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 172391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 173391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner NULL); 174391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner SelectorTy = llvm::PointerType::getUnqual(SelStructTy); 175391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToIntTy = llvm::PointerType::getUnqual(IntTy); 176391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrTy = PtrToInt8Ty; 177391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 178391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // Object type 179391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PATypeHolder OpaqueObjTy = llvm::OpaqueType::get(); 180391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Type *OpaqueIdTy = llvm::PointerType::getUnqual(OpaqueObjTy); 181391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::StructType::get(OpaqueIdTy, NULL); 182391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::cast<llvm::OpaqueType>(OpaqueObjTy.get())->refineAbstractTypeTo(IdTy); 183391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::cast<llvm::StructType>(OpaqueObjTy.get()); 184391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::PointerType::getUnqual(IdTy); 185391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 186391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // IMP type 187391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner std::vector<const llvm::Type*> IMPArgs; 188391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPArgs.push_back(IdTy); 189391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPArgs.push_back(SelectorTy); 190391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPTy = llvm::FunctionType::get(IdTy, IMPArgs, true); 19120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 19220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// This has to perform the lookup every time, since posing and related 19320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// techniques can modify the name -> class mapping. 19445d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbarllvm::Value *CGObjCGNU::GetClass(CGBuilderTy &Builder, 195ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar const ObjCInterfaceDecl *OID) { 196d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner llvm::Value *ClassName = CGM.GetAddrOfConstantCString(OID->getNameAsString()); 197ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar ClassName = Builder.CreateStructGEP(ClassName, 0); 198ddb2a3d55a24a1dbdf9152621642d9a4b4fc2f61Daniel Dunbar 19920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassLookupFn = 20020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getOrInsertFunction("objc_lookup_class", IdTy, PtrToInt8Ty, 20120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 20220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateCall(ClassLookupFn, ClassName); 203391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 204391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 2058e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner/// GetSelector - Return the pointer to the unique'd string for this selector. 20645d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbarllvm::Value *CGObjCGNU::GetSelector(CGBuilderTy &Builder, Selector Sel) { 2078e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner // FIXME: uniquing on the string is wasteful, unique on Sel instead! 208077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner llvm::GlobalAlias *&US = UntypedSelectors[Sel.getAsString()]; 2098e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner if (US == 0) 2108e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner US = new llvm::GlobalAlias(llvm::PointerType::getUnqual(SelectorTy), 2118e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner llvm::GlobalValue::InternalLinkage, 2128e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner ".objc_untyped_selector_alias", 2138e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner NULL, &TheModule); 2148e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2158e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner return Builder.CreateLoad(US); 2168e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2178e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner} 2188e67b63530b4f39a48bc12d97376f373a6901279Chris Lattner 2195e7dcc62e4637591959f9c372f6c5258d0d263e0Chris Lattnerllvm::Constant *CGObjCGNU::MakeConstantString(const std::string &Str, 2205e7dcc62e4637591959f9c372f6c5258d0d263e0Chris Lattner const std::string &Name) { 22120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * ConstStr = llvm::ConstantArray::get(Str); 22220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstStr = new llvm::GlobalVariable(ConstStr->getType(), true, 22320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 22420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstStr, Name, &TheModule); 22520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return llvm::ConstantExpr::getGetElementPtr(ConstStr, Zeros, 2); 22620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 22720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeGlobal(const llvm::StructType *Ty, 22820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name) { 22920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *C = llvm::ConstantStruct::get(Ty, V); 23020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return new llvm::GlobalVariable(Ty, false, 23120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, C, Name, &TheModule); 23220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 23320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeGlobal(const llvm::ArrayType *Ty, 23420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name) { 23520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *C = llvm::ConstantArray::get(Ty, V); 23620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return new llvm::GlobalVariable(Ty, false, 23720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, C, Name, &TheModule); 23820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 23920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 24020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate an NSConstantString object. 24120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//TODO: In case there are any crazy people still using the GNU runtime without 24220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//an OpenStep implementation, this should let them select their own class for 24320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//constant strings. 244bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbarllvm::Constant *CGObjCGNU::GenerateConstantString(const std::string &Str) { 24520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Ivars; 24620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(NULLPtr); 24713fd7e5111032f54b538dd66d035b0ccc1f82467Chris Lattner Ivars.push_back(MakeConstantString(Str)); 248bbce49b9e5c6d7f05926b89f8e6fd235ae01c250Daniel Dunbar Ivars.push_back(llvm::ConstantInt::get(IntTy, Str.size())); 24920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ObjCStr = MakeGlobal( 25020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, IntTy, NULL), 25120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars, ".objc_str"); 25220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.push_back( 25320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(ObjCStr, PtrToInt8Ty)); 25420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ObjCStr; 25520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 25620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 25720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///Generates a message send where the super is the receiver. This is a message 25820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///send to self with special delivery semantics indicating which class's method 25920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///should be called. 2608f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCodeGen::RValue 2618f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCGObjCGNU::GenerateMessageSendSuper(CodeGen::CodeGenFunction &CGF, 2627f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 2637f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 264f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *Class, 265f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 26619cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 26719cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs) { 268f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar const ObjCInterfaceDecl *SuperClass = Class->getSuperClass(); 2697f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar const llvm::Type *ReturnTy = CGM.getTypes().ConvertType(ResultType); 27020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // TODO: This should be cached, not looked up every time. 2718f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *ReceiverClass = GetClass(CGF.Builder, SuperClass); 2727f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar llvm::Value *cmd = GetSelector(CGF.Builder, Sel); 27320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<const llvm::Type*> impArgTypes; 27420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(Receiver->getType()); 27520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(SelectorTy); 27620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 27720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Avoid an explicit cast on the IMP by getting a version that has the right 27820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // return type. 27920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType *impType = llvm::FunctionType::get(ReturnTy, impArgTypes, 28020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov true); 28120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Construct the structure used to look up the IMP 28220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCSuperTy = llvm::StructType::get(Receiver->getType(), 28320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IdTy, NULL); 2848f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *ObjCSuper = CGF.Builder.CreateAlloca(ObjCSuperTy); 2851e692ace08959399794363e77499b73da5494af9Eli Friedman // FIXME: volatility 2868f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar CGF.Builder.CreateStore(Receiver, CGF.Builder.CreateStructGEP(ObjCSuper, 0)); 2878f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar CGF.Builder.CreateStore(ReceiverClass, CGF.Builder.CreateStructGEP(ObjCSuper, 1)); 28820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 28920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the IMP 29020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *lookupFunction = 29120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getOrInsertFunction("objc_msg_lookup_super", 29220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(impType), 29320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(ObjCSuperTy), 29420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SelectorTy, NULL); 29520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *lookupArgs[] = {ObjCSuper, cmd}; 2968f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *imp = CGF.Builder.CreateCall(lookupFunction, lookupArgs, 29720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov lookupArgs+2); 29820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 29920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Call the method 30019cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CallArgList ActualArgs; 30146f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(Receiver), 30219cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCIdType())); 30346f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(cmd), 30419cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCSelType())); 30519cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); 3067f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar return CGF.EmitCall(imp, ResultType, ActualArgs); 30720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 30820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 30920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate code for a message send expression. 3108f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCodeGen::RValue 3118f2926b73ed635afecd020da787af6a837601a2bDaniel DunbarCGObjCGNU::GenerateMessageSend(CodeGen::CodeGenFunction &CGF, 3127f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar QualType ResultType, 3137f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar Selector Sel, 314f56f1913e91ad32bed52dd3f6afc26735d336584Daniel Dunbar llvm::Value *Receiver, 31519cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar bool IsClassMessage, 31619cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar const CallArgList &CallArgs) { 3177f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar const llvm::Type *ReturnTy = CGM.getTypes().ConvertType(ResultType); 3187f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar llvm::Value *cmd = GetSelector(CGF.Builder, Sel); 3190f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3200f984268b05edab2cc555a427c441baa9c252658Chris Lattner // Look up the method implementation. 3210f984268b05edab2cc555a427c441baa9c252658Chris Lattner std::vector<const llvm::Type*> impArgTypes; 32220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::Type *RetTy; 32320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //TODO: Revisit this when LLVM supports aggregate return types. 32420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (ReturnTy->isSingleValueType() && ReturnTy != llvm::Type::VoidTy) { 32520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov RetTy = ReturnTy; 32620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } else { 32720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // For struct returns allocate the space in the caller and pass it up to 32820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // the sender. 32920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov RetTy = llvm::Type::VoidTy; 33020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(llvm::PointerType::getUnqual(ReturnTy)); 33120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 3320f984268b05edab2cc555a427c441baa9c252658Chris Lattner impArgTypes.push_back(Receiver->getType()); 333391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner impArgTypes.push_back(SelectorTy); 3340f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3350f984268b05edab2cc555a427c441baa9c252658Chris Lattner // Avoid an explicit cast on the IMP by getting a version that has the right 3360f984268b05edab2cc555a427c441baa9c252658Chris Lattner // return type. 33720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType *impType = llvm::FunctionType::get(RetTy, impArgTypes, 3380f984268b05edab2cc555a427c441baa9c252658Chris Lattner true); 3390f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3400f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Constant *lookupFunction = 3410f984268b05edab2cc555a427c441baa9c252658Chris Lattner TheModule.getOrInsertFunction("objc_msg_lookup", 342391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PointerType::getUnqual(impType), 343391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Receiver->getType(), SelectorTy, NULL); 3448f2926b73ed635afecd020da787af6a837601a2bDaniel Dunbar llvm::Value *imp = CGF.Builder.CreateCall2(lookupFunction, Receiver, cmd); 3453eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner 3463eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner // Call the method. 34719cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CallArgList ActualArgs; 34846f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(Receiver), 34919cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCIdType())); 35046f45b9bec4a265ad8400a538e5ec3a5683617f1Daniel Dunbar ActualArgs.push_back(std::make_pair(RValue::get(cmd), 35119cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar CGF.getContext().getObjCSelType())); 35219cd87eb5fb3c197e631ce08fd52c446c4d4e8f1Daniel Dunbar ActualArgs.insert(ActualArgs.end(), CallArgs.begin(), CallArgs.end()); 3537f8ea5c5b3a6a4332a841eefdd86b0726722ea7bDaniel Dunbar return CGF.EmitCall(imp, ResultType, ActualArgs); 35420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 35520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 35620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generates a MethodList. Used in construction of a objc_class and 35720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// objc_category structures. 35820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateMethodList(const std::string &ClassName, 359a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const std::string &CategoryName, 360a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner const llvm::SmallVectorImpl<Selector> &MethodSels, 36120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes, 36220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethodList) { 36320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 36420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodTy = llvm::StructType::get( 36520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Really a selector, but the runtime creates it us. 36620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Method types 36720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(IMPTy), //Method pointer 36820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 36920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Methods; 37020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 37120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = MethodTypes.size(); i < e; ++i) { 37220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 373077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner llvm::Constant *C = 374077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner CGM.GetAddrOfConstantCString(MethodSels[i].getAsString()); 375a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner Elements.push_back(llvm::ConstantExpr::getGetElementPtr(C, Zeros, 2)); 37620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 37720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(MethodTypes[i], Zeros, 2)); 37820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Method = 37920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getFunction(SymbolNameForMethod(ClassName, CategoryName, 380077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner MethodSels[i].getAsString(), 381550b8db03c0bb1b006d2ff63d4febda3db16002fChris Lattner isClassMethodList)); 38220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Method = llvm::ConstantExpr::getBitCast(Method, 38320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(IMPTy)); 38420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Method); 38520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantStruct::get(ObjCMethodTy, Elements)); 38620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 38720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 38820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of method structures 38920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCMethodArrayTy = llvm::ArrayType::get(ObjCMethodTy, 390a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner MethodSels.size()); 39120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MethodArray = llvm::ConstantArray::get(ObjCMethodArrayTy, 392fba676396703e87a5034e5f308aa30a633468f66Chris Lattner Methods); 39320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 39420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Structure containing list pointer, array and array count 39520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<const llvm::Type*, 16> ObjCMethodListFields; 39620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PATypeHolder OpaqueNextTy = llvm::OpaqueType::get(); 39720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type *NextPtrTy = llvm::PointerType::getUnqual(OpaqueNextTy); 39820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodListTy = llvm::StructType::get(NextPtrTy, 39920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, 40020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCMethodArrayTy, 40120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 40220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Refine next pointer type to concrete type 40320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::OpaqueType>( 40420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov OpaqueNextTy.get())->refineAbstractTypeTo(ObjCMethodListTy); 40520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCMethodListTy = llvm::cast<llvm::StructType>(OpaqueNextTy.get()); 40620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 40720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.clear(); 40820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantPointerNull::get( 40920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(ObjCMethodListTy))); 41020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantInt::get(llvm::Type::Int32Ty, 41120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodTypes.size())); 41220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(MethodArray); 41320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 41420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 41520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCMethodListTy, Methods, ".objc_method_list"); 41620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 41720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 41820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generates an IvarList. Used in construction of a objc_class. 41920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateIvarList( 42020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 42120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 42220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets) { 42320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 42420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCIvarTy = llvm::StructType::get( 42520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 42620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 42720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, 42820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 42920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Ivars; 43020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 43120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = IvarNames.size() ; i < e ; i++) { 43220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 43320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(IvarNames[i], 43420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 43520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(IvarTypes[i], 43620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 43720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(IvarOffsets[i]); 43820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(llvm::ConstantStruct::get(ObjCIvarTy, Elements)); 43920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 44020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 44120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of method structures 44220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCIvarArrayTy = llvm::ArrayType::get(ObjCIvarTy, 44320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IvarNames.size()); 44420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 44520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 44620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 44720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get( 44820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::IntegerType>(IntTy), (int)IvarNames.size())); 44920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantArray::get(ObjCIvarArrayTy, Ivars)); 45020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Structure containing array and array count 45120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCIvarListTy = llvm::StructType::get(IntTy, 45220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCIvarArrayTy, 45320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 45420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 45520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 45620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCIvarListTy, Elements, ".objc_ivar_list"); 4570f984268b05edab2cc555a427c441baa9c252658Chris Lattner} 4580f984268b05edab2cc555a427c441baa9c252658Chris Lattner 45920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate a class structure 46020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateClassStructure( 46120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClass, 46220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass, 46320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned info, 464d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner const char *Name, 46520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Version, 46620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceSize, 46720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IVars, 46820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Methods, 46920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Protocols) { 47020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Set up the class structure 47120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Note: Several of these are char*s when they should be ids. This is 47220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // because the runtime performs this translation on load. 47320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ClassTy = llvm::StructType::get( 47420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // class_pointer 47520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // super_class 47620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // name 47720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // version 47820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // info 47920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // instance_size 48020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IVars->getType(), // ivars 48120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods->getType(), // methods 48220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // These are all filled in by the runtime, so we pretend 48320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // dtable 48420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // subclass_list 48520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // sibling_class 48620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // protocols 48720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // gc_object_type 48820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 48920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Zero = llvm::ConstantInt::get(LongTy, 0); 49020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *NullP = 49120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantPointerNull::get(llvm::cast<llvm::PointerType>(PtrTy)); 49220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Fill in the structure 49320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 49420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(MetaClass, PtrToInt8Ty)); 49520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(SuperClass); 496d002cc6fc5b72bf00e3b7b4571ccf0f23c789b4bChris Lattner Elements.push_back(MakeConstantString(Name, ".class_name")); 49720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Zero); 49820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, info)); 49920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(InstanceSize); 50020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(IVars); 50120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Methods); 50220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 50320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 50420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 50520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(Protocols, PtrTy)); 50620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 50720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 5081565e0364b05d163640dd2b6feed43bae67df4fdChris Lattner return MakeGlobal(ClassTy, Elements, SymbolNameForClass(Name)); 50920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 51020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 51120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateProtocolMethodList( 51220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 51320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes) { 51420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 51520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodDescTy = llvm::StructType::get( 51620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Really a selector, but the runtime does the casting for us. 51720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 51820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 51920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Methods; 52020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 52120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = MethodTypes.size() ; i < e ; i++) { 52220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 52320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(MethodNames[i], 52420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 52520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 52620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(MethodTypes[i], Zeros, 2)); 52720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantStruct::get(ObjCMethodDescTy, Elements)); 52820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 52920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCMethodArrayTy = llvm::ArrayType::get(ObjCMethodDescTy, 53020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodNames.size()); 53120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Array = llvm::ConstantArray::get(ObjCMethodArrayTy, Methods); 53220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodDescListTy = llvm::StructType::get( 53320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, ObjCMethodArrayTy, NULL); 53420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.clear(); 53520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantInt::get(IntTy, MethodNames.size())); 53620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(Array); 53720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCMethodDescListTy, Methods, ".objc_method_list"); 53820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 53920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// Create the protocol list structure used in classes, categories and so on 54020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateProtocolList( 54120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols) { 54220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ProtocolArrayTy = llvm::ArrayType::get(PtrToInt8Ty, 54320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Protocols.size()); 54420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ProtocolListTy = llvm::StructType::get( 54520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, //Should be a recurisve pointer, but it's always NULL here. 54620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy,//FIXME: Should be size_t 54720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ProtocolArrayTy, 54820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 54920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 55020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (const std::string *iter = Protocols.begin(), *endIter = Protocols.end(); 55120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != endIter ; iter++) { 55220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Ptr = 55320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(ExistingProtocols[*iter], PtrToInt8Ty); 55420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Ptr); 55520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 55620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * ProtocolArray = llvm::ConstantArray::get(ProtocolArrayTy, 55720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements); 55820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 55920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 56020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get( 56120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::IntegerType>(LongTy), Protocols.size())); 56220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ProtocolArray); 56320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ProtocolListTy, Elements, ".objc_protocol_list"); 56420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 56520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 56645d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbarllvm::Value *CGObjCGNU::GenerateProtocolRef(CGBuilderTy &Builder, 567af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar const ObjCProtocolDecl *PD) { 568d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner return ExistingProtocols[PD->getNameAsString()]; 56920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 57020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 571af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbarvoid CGObjCGNU::GenerateProtocol(const ObjCProtocolDecl *PD) { 572af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar ASTContext &Context = CGM.getContext(); 5738ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner std::string ProtocolName = PD->getNameAsString(); 574af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 575af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::protocol_iterator PI = PD->protocol_begin(), 576af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar E = PD->protocol_end(); PI != E; ++PI) 577d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Protocols.push_back((*PI)->getNameAsString()); 578af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodNames; 579af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 580af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::instmeth_iterator iter = PD->instmeth_begin(), 581af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar E = PD->instmeth_end(); iter != E; iter++) { 582af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar std::string TypeStr; 583af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar Context.getObjCEncodingForMethodDecl(*iter, TypeStr); 584af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar InstanceMethodNames.push_back( 585077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner CGM.GetAddrOfConstantCString((*iter)->getSelector().getAsString())); 5866143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 587af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar } 588af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar // Collect information about class methods: 589af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodNames; 590af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 591af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar for (ObjCProtocolDecl::classmeth_iterator iter = PD->classmeth_begin(), 592af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar endIter = PD->classmeth_end() ; iter != endIter ; iter++) { 593af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar std::string TypeStr; 594af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 595af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar ClassMethodNames.push_back( 596077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner CGM.GetAddrOfConstantCString((*iter)->getSelector().getAsString())); 5976143293fa4366ee95d7e47e61bd030a34bf68b55Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 598af2f62ce32e462f256855cd24b06dec4755d2827Daniel Dunbar } 59920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 60020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ProtocolList = GenerateProtocolList(Protocols); 60120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceMethodList = 60220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolMethodList(InstanceMethodNames, InstanceMethodTypes); 60320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassMethodList = 60420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolMethodList(ClassMethodNames, ClassMethodTypes); 60520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Protocols are objects containing lists of the methods implemented and 60620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // protocols adopted. 60720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ProtocolTy = llvm::StructType::get(IdTy, 60820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 60920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ProtocolList->getType(), 61020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov InstanceMethodList->getType(), 61120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassMethodList->getType(), 61220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 61320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 61420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // The isa pointer must be set to a magic number so the runtime knows it's 61520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // the correct layout. 61620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getIntToPtr( 61720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, ProtocolVersion), IdTy)); 61820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(ProtocolName, ".objc_protocol_name")); 61920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ProtocolList); 62020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(InstanceMethodList); 62120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ClassMethodList); 62220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ExistingProtocols[ProtocolName] = 62320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(MakeGlobal(ProtocolTy, Elements, 62420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_protocol"), IdTy); 62520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 62620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 6277ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarvoid CGObjCGNU::GenerateCategory(const ObjCCategoryImplDecl *OCD) { 6288ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner std::string ClassName = OCD->getClassInterface()->getNameAsString(); 6298ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner std::string CategoryName = OCD->getNameAsString(); 6307ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance methods 6317ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> InstanceMethodSels; 6327ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 6330701bbb228dfd87e1fe82a0a4b7b9facfecb43daSteve Naroff for (ObjCCategoryImplDecl::instmeth_iterator iter = OCD->instmeth_begin(), 6347ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OCD->instmeth_end() ; iter != endIter ; iter++) { 6357ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodSels.push_back((*iter)->getSelector()); 6367ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 6377ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getContext().getObjCEncodingForMethodDecl(*iter,TypeStr); 6387ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 6397ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6407ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6417ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about class methods 6427ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> ClassMethodSels; 6437ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 6440701bbb228dfd87e1fe82a0a4b7b9facfecb43daSteve Naroff for (ObjCCategoryImplDecl::classmeth_iterator iter = OCD->classmeth_begin(), 6457ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OCD->classmeth_end() ; iter != endIter ; iter++) { 6467ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodSels.push_back((*iter)->getSelector()); 6477ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 6487ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getContext().getObjCEncodingForMethodDecl(*iter,TypeStr); 6497ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 6507ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 6517ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6527ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect the names of referenced protocols 6537ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 6547ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCInterfaceDecl *ClassDecl = OCD->getClassInterface(); 6557ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCList<ObjCProtocolDecl> &Protos =ClassDecl->getReferencedProtocols(); 6567ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCList<ObjCProtocolDecl>::iterator I = Protos.begin(), 6577ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar E = Protos.end(); I != E; ++I) 658d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Protocols.push_back((*I)->getNameAsString()); 6597ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 66020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 66120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(CategoryName)); 66220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(ClassName)); 66320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Instance method list 66420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(GenerateMethodList( 665a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassName, CategoryName, InstanceMethodSels, InstanceMethodTypes, 66620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov false), PtrTy)); 66720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Class method list 66820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(GenerateMethodList( 669a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassName, CategoryName, ClassMethodSels, ClassMethodTypes, true), 67020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy)); 67120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Protocol list 67220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast( 67320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolList(Protocols), PtrTy)); 67420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Categories.push_back(llvm::ConstantExpr::getBitCast( 67520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeGlobal(llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, PtrTy, 67620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, PtrTy, NULL), Elements), PtrTy)); 67720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 6787ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6797ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarvoid CGObjCGNU::GenerateClass(const ObjCImplementationDecl *OID) { 6807ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ASTContext &Context = CGM.getContext(); 6817ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6827ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the superclass name. 6837ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCInterfaceDecl * SuperClassDecl = 6847ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar OID->getClassInterface()->getSuperClass(); 6858ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner std::string SuperClassName; 6868ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner if (SuperClassDecl) 6878ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner SuperClassName = SuperClassDecl->getNameAsString(); 6887ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6897ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the class name 6907ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjCInterfaceDecl * ClassDecl = (ObjCInterfaceDecl*)OID->getClassInterface(); 6918ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner std::string ClassName = ClassDecl->getNameAsString(); 6927ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 6937ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the size of instances. For runtimes that support late-bound instances 6947ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // this should probably be something different (size just of instance 6957ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // varaibles in this class, not superclasses?). 6967ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar int instanceSize = 0; 6977ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::Type *ObjTy = 0; 6987ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar if (!LateBoundIVars()) { 6997ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjTy = CGM.getTypes().ConvertType(Context.getObjCInterfaceType(ClassDecl)); 7007ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar instanceSize = CGM.getTargetData().getABITypeSize(ObjTy); 7017ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } else { 7027ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // This is required by newer ObjC runtimes. 7037ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar assert(0 && "Late-bound instance variables not yet supported"); 7047ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7057ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7067ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance variables. 7077ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarNames; 7087ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarTypes; 7097ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> IvarOffsets; 7107ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const llvm::StructLayout *Layout = 7117ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar CGM.getTargetData().getStructLayout(cast<llvm::StructType>(ObjTy)); 7127ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ObjTy = llvm::PointerType::getUnqual(ObjTy); 7137ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCInterfaceDecl::ivar_iterator iter = ClassDecl->ivar_begin(), 7147ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = ClassDecl->ivar_end() ; iter != endIter ; iter++) { 7157ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Store the name 716d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner IvarNames.push_back(CGM.GetAddrOfConstantCString((*iter) 717d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner ->getNameAsString())); 7187ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the type encoding for this ivar 7197ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7200d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar Context.getObjCEncodingForType((*iter)->getType(), TypeStr); 7217ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar IvarTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7227ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Get the offset 723fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian FieldDecl *Field = ClassDecl->lookupFieldDeclForIvar(Context, (*iter)); 7247ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar int offset = 725fd64bb635dc221baa19f81d5d2a084f7eb269f7fFariborz Jahanian (int)Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(Field)); 7267ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar IvarOffsets.push_back( 7277ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::ConstantInt::get(llvm::Type::Int32Ty, offset)); 7287ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7297ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7307ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about instance methods 7317ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> InstanceMethodSels; 7327ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> InstanceMethodTypes; 7337ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCImplementationDecl::instmeth_iterator iter = OID->instmeth_begin(), 7347ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OID->instmeth_end() ; iter != endIter ; iter++) { 7357ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodSels.push_back((*iter)->getSelector()); 7367ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7377ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 7387ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar InstanceMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7397ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7407ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7417ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect information about class methods 7427ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<Selector, 16> ClassMethodSels; 7437ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<llvm::Constant*, 16> ClassMethodTypes; 7447ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCImplementationDecl::classmeth_iterator iter = OID->classmeth_begin(), 7457ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar endIter = OID->classmeth_end() ; iter != endIter ; iter++) { 7467ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodSels.push_back((*iter)->getSelector()); 7477ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar std::string TypeStr; 7487ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar Context.getObjCEncodingForMethodDecl((*iter),TypeStr); 7497ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar ClassMethodTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr)); 7507ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar } 7517ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar // Collect the names of referenced protocols 7527ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar llvm::SmallVector<std::string, 16> Protocols; 7537ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCList<ObjCProtocolDecl> &Protos =ClassDecl->getReferencedProtocols(); 7547ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar for (ObjCList<ObjCProtocolDecl>::iterator I = Protos.begin(), 7557ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar E = Protos.end(); I != E; ++I) 756d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Protocols.push_back((*I)->getNameAsString()); 7577ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7587ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 7597ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 76020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the superclass pointer. 76120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass; 7628ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner if (!SuperClassName.empty()) { 76320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SuperClass = MakeConstantString(SuperClassName, ".super_class_name"); 76420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } else { 76520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SuperClass = llvm::ConstantPointerNull::get( 76620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::PointerType>(PtrToInt8Ty)); 76720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 76820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Empty vector used to construct empty method lists 76920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<llvm::Constant*, 1> empty; 77020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate the method and instance variable lists 77120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MethodList = GenerateMethodList(ClassName, "", 772a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner InstanceMethodSels, InstanceMethodTypes, false); 77320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassMethodList = GenerateMethodList(ClassName, "", 774a4210076fc1d7ac0a20b8b4a79e18a8ae33b9c69Chris Lattner ClassMethodSels, ClassMethodTypes, true); 77520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IvarList = GenerateIvarList(IvarNames, IvarTypes, 77620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IvarOffsets); 77720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //Generate metaclass for class methods 77820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClassStruct = GenerateClassStructure(NULLPtr, 7791565e0364b05d163640dd2b6feed43bae67df4fdChris Lattner NULLPtr, 0x2L, /*name*/"", 0, Zeros[0], GenerateIvarList( 78020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov empty, empty, empty), ClassMethodList, NULLPtr); 78120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate the class structure 7828ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner llvm::Constant *ClassStruct = 7838ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner GenerateClassStructure(MetaClassStruct, SuperClass, 0x1L, 7848ec03f58c33c33a917f54bb7f2cd61b6d7ffe0caChris Lattner ClassName.c_str(), 0, 7853a5013cab1162118bd5bcf00a36c52e19a319f87Sebastian Redl llvm::ConstantInt::get(LongTy, instanceSize), IvarList, 78620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodList, GenerateProtocolList(Protocols)); 78720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Add class structure to list to be added to the symtab later 78820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassStruct = llvm::ConstantExpr::getBitCast(ClassStruct, PtrToInt8Ty); 78920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(ClassStruct); 79020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 79120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 79220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Function *CGObjCGNU::ModuleInitFunction() { 79320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Only emit an ObjC load function if no Objective-C stuff has been called 79420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (Classes.empty() && Categories.empty() && ConstantStrings.empty() && 79520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ExistingProtocols.empty() && TypedSelectors.empty() && 7965f58b911304f7d114f929d1726a09cd1c828a5ddAnton Korobeynikov UntypedSelectors.empty()) 79720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return NULL; 7981b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman 7991b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman // Name the ObjC types to make the IR a bit easier to read 8001b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_selector", SelectorTy); 8011b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_id", IdTy); 8021b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_imp", IMPTy); 8031b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman 80420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 80520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate statics list: 80620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *StaticsArrayTy = llvm::ArrayType::get(PtrToInt8Ty, 80720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.size() + 1); 80820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.push_back(NULLPtr); 80920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString("NSConstantString", 81020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_static_class_name")); 81120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantArray::get(StaticsArrayTy, ConstantStrings)); 81220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *StaticsListTy = 81320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType::get(PtrToInt8Ty, StaticsArrayTy, NULL); 814630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type *StaticsListPtrTy = llvm::PointerType::getUnqual(StaticsListTy); 81520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Statics = 81620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeGlobal(StaticsListTy, Elements, ".objc_statics"); 8174e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner llvm::ArrayType *StaticsListArrayTy = 818630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::ArrayType::get(StaticsListPtrTy, 2); 8194e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.clear(); 8204e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.push_back(Statics); 821630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(llvm::Constant::getNullValue(StaticsListPtrTy)); 8224e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Statics = MakeGlobal(StaticsListArrayTy, Elements, ".objc_statics_ptr"); 82320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Statics = llvm::ConstantExpr::getBitCast(Statics, PtrTy); 82420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of classes, categories, and constant objects 82520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ClassListTy = llvm::ArrayType::get(PtrToInt8Ty, 82620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.size() + Categories.size() + 2); 827630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::StructType *SymTabTy = llvm::StructType::get(LongTy, SelectorTy, 828630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type::Int16Ty, 829630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner llvm::Type::Int16Ty, 830630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner ClassListTy, NULL); 83120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 83220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 83320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Pointer to an array of selectors used in this module. 83420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Selectors; 83520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (std::map<TypedSelector, llvm::GlobalAlias*>::iterator 83620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter = TypedSelectors.begin(), iterEnd = TypedSelectors.end(); 83720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd ; ++iter) { 838630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(MakeConstantString(iter->first.first, ".objc_sel_name")); 839630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner Elements.push_back(MakeConstantString(iter->first.second, 840630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner ".objc_sel_types")); 84120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 84220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 84320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 84420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (llvm::StringMap<llvm::GlobalAlias*>::iterator 84520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter = UntypedSelectors.begin(), iterEnd = UntypedSelectors.end(); 846630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner iter != iterEnd; ++iter) { 84720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 848630404b16e886238ed68a1abbfe2e548f43aa664Chris Lattner MakeConstantString(iter->getKeyData(), ".objc_sel_name")); 84920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 85020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 85120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 85220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 85320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 85420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 85520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 85620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 85720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of static selectors 85820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, Selectors.size() )); 85920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SelectorList = MakeGlobal( 86020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType::get(SelStructTy, Selectors.size()), Selectors, 86120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_selector_list"); 86220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(SelectorList, SelectorTy)); 86320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 86420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Now that all of the static selectors exist, create pointers to them. 86520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov int index = 0; 86620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (std::map<TypedSelector, llvm::GlobalAlias*>::iterator 86720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter=TypedSelectors.begin(), iterEnd =TypedSelectors.end(); 86820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; ++iter) { 86920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Idxs[] = {Zeros[0], 87020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, index++), Zeros[0]}; 87120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalVariable *SelPtr = new llvm::GlobalVariable(SelectorTy, true, 87220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 87320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(SelectorList, Idxs, 2), 87420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_ptr", &TheModule); 87520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (*iter).second->setAliasee(SelPtr); 87620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 87720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (llvm::StringMap<llvm::GlobalAlias*>::iterator 87820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter=UntypedSelectors.begin(), iterEnd = UntypedSelectors.end(); 87920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; iter++) { 88020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Idxs[] = {Zeros[0], 88120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, index++), Zeros[0]}; 88220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalVariable *SelPtr = new llvm::GlobalVariable(SelectorTy, true, 88320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 88420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(SelectorList, Idxs, 2), 88520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_ptr", &TheModule); 88620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (*iter).second->setAliasee(SelPtr); 88720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 88820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of classes defined. 88920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(llvm::Type::Int16Ty, 89020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.size())); 89120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of categories defined 89220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(llvm::Type::Int16Ty, 89320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Categories.size())); 89420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an array of classes, then categories, then static object instances 89520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.insert(Classes.end(), Categories.begin(), Categories.end()); 89620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // NULL-terminated list of static object instances (mainly constant strings) 89720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(Statics); 89820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(NULLPtr); 89920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassList = llvm::ConstantArray::get(ClassListTy, Classes); 90020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ClassList); 90120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Construct the symbol table 90220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SymTab= MakeGlobal(SymTabTy, Elements); 90320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 90420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // The symbol table is contained in a module which has some version-checking 90520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // constants 90620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType * ModuleTy = llvm::StructType::get(LongTy, LongTy, 90720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, llvm::PointerType::getUnqual(SymTabTy), NULL); 90820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 90920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Runtime version used for compatibility checking. 91020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, RuntimeVersion)); 91120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //FIXME: Should be sizeof(ModuleTy) 91220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, 16)); 91320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //FIXME: Should be the path to the file where this module was declared 91420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 91520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(SymTab); 91620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Module = MakeGlobal(ModuleTy, Elements); 91720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 91820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create the load function calling the runtime entry point with the module 91920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // structure 92020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<const llvm::Type*> VoidArgs; 92120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Function * LoadFunction = llvm::Function::Create( 92220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType::get(llvm::Type::VoidTy, VoidArgs, false), 92320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, ".objc_load_function", 92420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov &TheModule); 92520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::BasicBlock *EntryBB = llvm::BasicBlock::Create("entry", LoadFunction); 92645d196b8387dcefc4df26cda114fa34c6528e928Daniel Dunbar CGBuilderTy Builder; 92720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.SetInsertPoint(EntryBB); 92820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Register = TheModule.getOrInsertFunction("__objc_exec_class", 92920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type::VoidTy, llvm::PointerType::getUnqual(ModuleTy), NULL); 93020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateCall(Register, Module); 93120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateRetVoid(); 93220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return LoadFunction; 93320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 9347ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar 9357ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbarllvm::Function *CGObjCGNU::GenerateMethod(const ObjCMethodDecl *OMD) { 9367ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar const ObjCCategoryImplDecl *OCD = 9373e0a540b6d846178857289ec0eb8470a278d11a3Steve Naroff dyn_cast<ObjCCategoryImplDecl>(OMD->getDeclContext()); 938077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner std::string CategoryName = OCD ? OCD->getNameAsString() : ""; 939077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner std::string ClassName = OMD->getClassInterface()->getNameAsString(); 940077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner std::string MethodName = OMD->getSelector().getAsString(); 9417ded7f4983dc4a20561db7a8d02c6b2435030961Daniel Dunbar bool isClassMethod = !OMD->isInstance(); 942391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 94345c25ba11cbf8c9a461def5b03f6ee9481e06769Daniel Dunbar const llvm::FunctionType *MethodTy = 94445c25ba11cbf8c9a461def5b03f6ee9481e06769Daniel Dunbar CGM.getTypes().GetFunctionType(CGFunctionInfo(OMD, CGM.getContext())); 94520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string FunctionName = SymbolNameForMethod(ClassName, CategoryName, 94620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodName, isClassMethod); 94720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 948984d0b414bc76d3530b9bc55a5a55834ba76c607Gabor Greif llvm::Function *Method = llvm::Function::Create(MethodTy, 949391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::GlobalValue::InternalLinkage, 95020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov FunctionName, 951391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner &TheModule); 952391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner return Method; 953391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 954391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 95549f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbarllvm::Function *CGObjCGNU::GetPropertyGetFunction() { 95649f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar return 0; 95749f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar} 95849f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar 95949f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbarllvm::Function *CGObjCGNU::GetPropertySetFunction() { 96049f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar return 0; 96149f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar} 96249f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar 96349f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbarllvm::Function *CGObjCGNU::EnumerationMutationFunction() { 9642abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson return 0; 9652abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson} 9662abd89c039e835e84519a4cd8a7495899a70153dAnders Carlsson 967bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanianvoid CGObjCGNU::EmitTryOrSynchronizedStmt(CodeGen::CodeGenFunction &CGF, 968bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian const Stmt &S) { 969bd71be4683c195260d5245118b1e13e6b2e20504Fariborz Jahanian CGF.ErrorUnsupported(&S, "@try/@synchronized statement"); 97064d5d6c5903157c521af496479d06dc26032d718Anders Carlsson} 97164d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 97264d5d6c5903157c521af496479d06dc26032d718Anders Carlssonvoid CGObjCGNU::EmitThrowStmt(CodeGen::CodeGenFunction &CGF, 97349f6602707887eea1a558a1dffe0213102f887f2Daniel Dunbar const ObjCAtThrowStmt &S) { 97464d5d6c5903157c521af496479d06dc26032d718Anders Carlsson CGF.ErrorUnsupported(&S, "@throw statement"); 97564d5d6c5903157c521af496479d06dc26032d718Anders Carlsson} 97664d5d6c5903157c521af496479d06dc26032d718Anders Carlsson 9773e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanianllvm::Value * CGObjCGNU::EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF, 9786dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian llvm::Value *AddrWeakObj) 9796dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian{ 9806dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian return 0; 9816dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian} 9826dc2317b59cb1180a59f6c283d96b7a5dfeb5307Fariborz Jahanian 9833e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanianvoid CGObjCGNU::EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF, 9843e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian llvm::Value *src, llvm::Value *dst) 9853e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian{ 9863e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian return; 9873e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian} 9883e283e344595e0bd499b13b30a92b7d9c10a2140Fariborz Jahanian 98958626500527695865683d1d65053743de8770b60Fariborz Jahanianvoid CGObjCGNU::EmitObjCGlobalAssign(CodeGen::CodeGenFunction &CGF, 99058626500527695865683d1d65053743de8770b60Fariborz Jahanian llvm::Value *src, llvm::Value *dst) 99158626500527695865683d1d65053743de8770b60Fariborz Jahanian{ 99258626500527695865683d1d65053743de8770b60Fariborz Jahanian return; 99358626500527695865683d1d65053743de8770b60Fariborz Jahanian} 99458626500527695865683d1d65053743de8770b60Fariborz Jahanian 9957eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanianvoid CGObjCGNU::EmitObjCIvarAssign(CodeGen::CodeGenFunction &CGF, 9967eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian llvm::Value *src, llvm::Value *dst) 9977eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian{ 9987eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian return; 9997eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian} 10007eda8367cf63caee8acf907356b1d199ccaa6e89Fariborz Jahanian 100158626500527695865683d1d65053743de8770b60Fariborz Jahanianvoid CGObjCGNU::EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF, 100258626500527695865683d1d65053743de8770b60Fariborz Jahanian llvm::Value *src, llvm::Value *dst) 100358626500527695865683d1d65053743de8770b60Fariborz Jahanian{ 100458626500527695865683d1d65053743de8770b60Fariborz Jahanian return; 100558626500527695865683d1d65053743de8770b60Fariborz Jahanian} 100658626500527695865683d1d65053743de8770b60Fariborz Jahanian 1007c17a4d3b16a2624a76de5d7508805534545bd3bfDaniel DunbarCodeGen::CGObjCRuntime *CodeGen::CreateGNUObjCRuntime(CodeGen::CodeGenModule &CGM){ 1008dce1406f1c1f572cfd61c494546572d63461c741Chris Lattner return new CGObjCGNU(CGM); 10090f984268b05edab2cc555a427c441baa9c252658Chris Lattner} 1010