CGObjCGNU.cpp revision 8fdf32822be2238aa7db62d40e75b168b637ab7d
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" 180f984268b05edab2cc555a427c441baa9c252658Chris Lattner#include "llvm/Module.h" 190f984268b05edab2cc555a427c441baa9c252658Chris Lattner#include "llvm/Support/Compiler.h" 2050b36741673258aaebcd3c7fe1260031901cae57Chris Lattner#include "llvm/Support/IRBuilder.h" 210f984268b05edab2cc555a427c441baa9c252658Chris Lattner#include "llvm/ADT/SmallVector.h" 2220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov#include "llvm/ADT/StringMap.h" 2320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov#include <map> 2420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 2520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovusing llvm::dyn_cast; 2620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 2720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// The version of the runtime that this class targets. Must match the version 2820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// in the runtime. 2920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic const int RuntimeVersion = 8; 3020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic const int ProtocolVersion = 2; 310f984268b05edab2cc555a427c441baa9c252658Chris Lattner 320f984268b05edab2cc555a427c441baa9c252658Chris Lattnernamespace { 33391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattnerclass CGObjCGNU : public clang::CodeGen::CGObjCRuntime { 340f984268b05edab2cc555a427c441baa9c252658Chris Lattnerprivate: 350f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Module &TheModule; 3620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::StructType *SelStructTy; 37391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *SelectorTy; 38391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *PtrToInt8Ty; 39391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *IMPTy; 40391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *IdTy; 41391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *IntTy; 42391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *PtrTy; 43391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *LongTy; 44391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *PtrToIntTy; 4520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Classes; 4620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Categories; 4720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> ConstantStrings; 4820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Function *LoadFunction; 4920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StringMap<llvm::Constant*> ExistingProtocols; 5020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov typedef std::pair<std::string, std::string> TypedSelector; 5120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::map<TypedSelector, llvm::GlobalAlias*> TypedSelectors; 5220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StringMap<llvm::GlobalAlias*> UntypedSelectors; 5320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Some zeros used for GEPs in lots of places. 5420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Zeros[2]; 5520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *NULLPtr; 5620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovprivate: 5720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateIvarList( 5820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 5920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 6020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets); 6120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateMethodList(const std::string &ClassName, 6220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &CategoryName, 6320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 6420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes, 6520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethodList); 6620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateProtocolList( 6720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols); 6820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateClassStructure( 6920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClass, 7020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass, 7120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned info, 7220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Name, 7320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Version, 7420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceSize, 7520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IVars, 7620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Methods, 7720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Protocols); 7820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *GenerateProtocolMethodList( 7920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 8020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes); 8120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeConstantString(const std::string &Str, const std::string 8220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov &Name=""); 8320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeGlobal(const llvm::StructType *Ty, 8420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name=""); 8520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MakeGlobal(const llvm::ArrayType *Ty, 8620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name=""); 870f984268b05edab2cc555a427c441baa9c252658Chris Lattnerpublic: 88391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner CGObjCGNU(llvm::Module &Mp, 89391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *LLVMIntType, 90391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *LLVMLongType); 9120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Constant *GenerateConstantString(const char *String, 9220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const size_t length); 9320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Value *GenerateMessageSend(llvm::IRBuilder &Builder, 940f984268b05edab2cc555a427c441baa9c252658Chris Lattner const llvm::Type *ReturnTy, 95391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Value *Sender, 960f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Value *Receiver, 97391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Value *Selector, 980f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Value** ArgV, 990f984268b05edab2cc555a427c441baa9c252658Chris Lattner unsigned ArgC); 10020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Value *GenerateMessageSendSuper(llvm::IRBuilder &Builder, 10120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::Type *ReturnTy, 10220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Sender, 10320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const char *SuperClassName, 10420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Receiver, 10520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Selector, 10620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value** ArgV, 10720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned ArgC); 10820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Value *LookupClass(llvm::IRBuilder &Builder, llvm::Value 10920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov *ClassName); 11020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Value *GetSelector(llvm::IRBuilder &Builder, 111391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Value *SelName, 112391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Value *SelTypes); 11320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Function *MethodPreamble( 11420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &ClassName, 11520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &CategoryName, 11620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &MethodName, 11720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::Type *ReturnTy, 11820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::Type *SelfTy, 11920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::Type **ArgTy, 12020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned ArgC, 12120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethod, 12220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isVarArg); 12320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual void GenerateCategory(const char *ClassName, const char *CategoryName, 12420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodNames, 12520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, 12620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodNames, 12720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes, 12820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols); 12920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual void GenerateClass( 13020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const char *ClassName, 13120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const char *SuperClassName, 13220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const int instanceSize, 13320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 13420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 13520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets, 13620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodNames, 13720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, 13820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodNames, 13920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes, 14020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols); 14120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Value *GenerateProtocolRef(llvm::IRBuilder &Builder, const char 14220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov *ProtocolName); 14320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual void GenerateProtocol(const char *ProtocolName, 14420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols, 14520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodNames, 14620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, 14720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodNames, 14820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes); 14920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov virtual llvm::Function *ModuleInitFunction(); 1500f984268b05edab2cc555a427c441baa9c252658Chris Lattner}; 1510f984268b05edab2cc555a427c441baa9c252658Chris Lattner} // end anonymous namespace 1520f984268b05edab2cc555a427c441baa9c252658Chris Lattner 15320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 15420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 15520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic std::string SymbolNameForClass(const std::string &ClassName) { 15620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ".objc_class_" + ClassName; 15720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 15820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 15920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovstatic std::string SymbolNameForMethod(const std::string &ClassName, const 16020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string &CategoryName, const std::string &MethodName, bool isClassMethod) 16120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov{ 16220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return "._objc_method_" + ClassName +"("+CategoryName+")"+ 16320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (isClassMethod ? "+" : "-") + MethodName; 16420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 16520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 166391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris LattnerCGObjCGNU::CGObjCGNU(llvm::Module &M, 167391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *LLVMIntType, 168391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *LLVMLongType) : 169391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner TheModule(M), 170391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IntTy(LLVMIntType), 171391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner LongTy(LLVMLongType) 172391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner{ 17320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros[0] = llvm::ConstantInt::get(llvm::Type::Int32Ty, 0); 17420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros[1] = Zeros[0]; 17520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULLPtr = llvm::ConstantPointerNull::get( 17620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(llvm::Type::Int8Ty)); 177391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // C string type. Used in lots of places. 178391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty = 179391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PointerType::getUnqual(llvm::Type::Int8Ty); 180391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // Get the selector Type. 18120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SelStructTy = llvm::StructType::get( 182391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 183391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 184391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner NULL); 185391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner SelectorTy = llvm::PointerType::getUnqual(SelStructTy); 186391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToIntTy = llvm::PointerType::getUnqual(IntTy); 187391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrTy = PtrToInt8Ty; 188391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 189391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // Object type 190391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PATypeHolder OpaqueObjTy = llvm::OpaqueType::get(); 191391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Type *OpaqueIdTy = llvm::PointerType::getUnqual(OpaqueObjTy); 192391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::StructType::get(OpaqueIdTy, NULL); 193391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::cast<llvm::OpaqueType>(OpaqueObjTy.get())->refineAbstractTypeTo(IdTy); 194391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::cast<llvm::StructType>(OpaqueObjTy.get()); 195391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IdTy = llvm::PointerType::getUnqual(IdTy); 196391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 197391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner // IMP type 198391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner std::vector<const llvm::Type*> IMPArgs; 199391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPArgs.push_back(IdTy); 200391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPArgs.push_back(SelectorTy); 201391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner IMPTy = llvm::FunctionType::get(IdTy, IMPArgs, true); 20220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 20320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// This has to perform the lookup every time, since posing and related 20420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// techniques can modify the name -> class mapping. 20520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Value *CGObjCGNU::LookupClass(llvm::IRBuilder &Builder, 20620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *ClassName) { 20720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassLookupFn = 20820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getOrInsertFunction("objc_lookup_class", IdTy, PtrToInt8Ty, 20920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 21020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateCall(ClassLookupFn, ClassName); 211391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 212391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 213391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner/// Looks up the selector for the specified name / type pair. 214391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner// FIXME: Selectors should be statically cached, not looked up on every call. 21520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Value *CGObjCGNU::GetSelector(llvm::IRBuilder &Builder, 216391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Value *SelName, 21720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *SelTypes) { 21820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // For static selectors, we return an alias for now then store them all in a 21920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // list that the runtime will initialise later. 22020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (llvm::Constant *CName = dyn_cast<llvm::Constant>(SelName)) { 22120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Untyped selector 22220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (SelTypes == 0) { 22320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // If it's already cached, return it. 22420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (UntypedSelectors[CName->getStringValue()]) { 2251e692ace08959399794363e77499b73da5494af9Eli Friedman // FIXME: Volatility 22620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateLoad(UntypedSelectors[CName->getStringValue()]); 22720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 22820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // If it isn't, cache it. 22920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalAlias *Sel = new llvm::GlobalAlias( 23020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(SelectorTy), 23120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, ".objc_untyped_selector_alias", 23220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL, &TheModule); 23320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov UntypedSelectors[CName->getStringValue()] = Sel; 2341e692ace08959399794363e77499b73da5494af9Eli Friedman // FIXME: Volatility 23520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateLoad(Sel); 23620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 23720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Typed selectors 23820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (llvm::Constant *CTypes = dyn_cast<llvm::Constant>(SelTypes)) { 23920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TypedSelector Selector = TypedSelector(CName->getStringValue(), 24020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov CTypes->getStringValue()); 24120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // If it's already cached, return it. 24220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (TypedSelectors[Selector]) { 2431e692ace08959399794363e77499b73da5494af9Eli Friedman // FIXME: Volatility 24420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateLoad(TypedSelectors[Selector]); 24520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 24620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // If it isn't, cache it. 24720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalAlias *Sel = new llvm::GlobalAlias( 24820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(SelectorTy), 24920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, ".objc_typed_selector_alias", 25020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL, &TheModule); 25120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TypedSelectors[Selector] = Sel; 2521e692ace08959399794363e77499b73da5494af9Eli Friedman // FIXME: Volatility 25320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateLoad(Sel); 25420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 25520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 25620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Dynamically look up selectors from non-constant sources 257391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Value *cmd; 25820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (SelTypes == 0) { 259391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Constant *SelFunction = TheModule.getOrInsertFunction("sel_get_uid", 260391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner SelectorTy, 261391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 262391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner NULL); 263391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner cmd = Builder.CreateCall(SelFunction, SelName); 264391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner } 265391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner else { 266391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Constant *SelFunction = 267391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner TheModule.getOrInsertFunction("sel_get_typed_uid", 268391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner SelectorTy, 269391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 270391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner PtrToInt8Ty, 271391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner NULL); 2723eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner cmd = Builder.CreateCall2(SelFunction, SelName, SelTypes); 273391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner } 274391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner return cmd; 275391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 276391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 277391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 27820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeConstantString(const std::string &Str, const 27920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string &Name) { 28020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * ConstStr = llvm::ConstantArray::get(Str); 28120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstStr = new llvm::GlobalVariable(ConstStr->getType(), true, 28220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 28320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstStr, Name, &TheModule); 28420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return llvm::ConstantExpr::getGetElementPtr(ConstStr, Zeros, 2); 28520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 28620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeGlobal(const llvm::StructType *Ty, 28720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name) { 28820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *C = llvm::ConstantStruct::get(Ty, V); 28920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return new llvm::GlobalVariable(Ty, false, 29020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, C, Name, &TheModule); 29120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 29220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::MakeGlobal(const llvm::ArrayType *Ty, 29320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> &V, const std::string &Name) { 29420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *C = llvm::ConstantArray::get(Ty, V); 29520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return new llvm::GlobalVariable(Ty, false, 29620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, C, Name, &TheModule); 29720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 29820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 29920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate an NSConstantString object. 30020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//TODO: In case there are any crazy people still using the GNU runtime without 30120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//an OpenStep implementation, this should let them select their own class for 30220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov//constant strings. 30320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateConstantString(const char *String, const 30420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov size_t length) { 30513fd7e5111032f54b538dd66d035b0ccc1f82467Chris Lattner std::string Str(String, String +length); 30620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Ivars; 30720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(NULLPtr); 30813fd7e5111032f54b538dd66d035b0ccc1f82467Chris Lattner Ivars.push_back(MakeConstantString(Str)); 30920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(llvm::ConstantInt::get(IntTy, length)); 31020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ObjCStr = MakeGlobal( 31120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, IntTy, NULL), 31220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars, ".objc_str"); 31320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.push_back( 31420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(ObjCStr, PtrToInt8Ty)); 31520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ObjCStr; 31620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 31720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 31820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///Generates a message send where the super is the receiver. This is a message 31920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///send to self with special delivery semantics indicating which class's method 32020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov///should be called. 32120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Value *CGObjCGNU::GenerateMessageSendSuper(llvm::IRBuilder &Builder, 32220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::Type *ReturnTy, 32320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Sender, 32420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const char *SuperClassName, 32520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Receiver, 32620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Selector, 32720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value** ArgV, 32820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned ArgC) { 32920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // TODO: This should be cached, not looked up every time. 33020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *ReceiverClass = LookupClass(Builder, 33120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeConstantString(SuperClassName)); 33220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *cmd = GetSelector(Builder, Selector, 0); 33320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<const llvm::Type*> impArgTypes; 33420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(Receiver->getType()); 33520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(SelectorTy); 33620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 33720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Avoid an explicit cast on the IMP by getting a version that has the right 33820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // return type. 33920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType *impType = llvm::FunctionType::get(ReturnTy, impArgTypes, 34020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov true); 34120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Construct the structure used to look up the IMP 34220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCSuperTy = llvm::StructType::get(Receiver->getType(), 34320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IdTy, NULL); 34420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *ObjCSuper = Builder.CreateAlloca(ObjCSuperTy); 3451e692ace08959399794363e77499b73da5494af9Eli Friedman // FIXME: volatility 34620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateStore(Receiver, Builder.CreateStructGEP(ObjCSuper, 0)); 34720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateStore(ReceiverClass, Builder.CreateStructGEP(ObjCSuper, 1)); 34820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 34920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the IMP 35020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *lookupFunction = 35120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getOrInsertFunction("objc_msg_lookup_super", 35220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(impType), 35320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(ObjCSuperTy), 35420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SelectorTy, NULL); 35520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *lookupArgs[] = {ObjCSuper, cmd}; 35620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *imp = Builder.CreateCall(lookupFunction, lookupArgs, 35720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov lookupArgs+2); 35820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 35920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Call the method 36020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<llvm::Value*, 8> callArgs; 36120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov callArgs.push_back(Receiver); 36220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov callArgs.push_back(cmd); 36320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov callArgs.insert(callArgs.end(), ArgV, ArgV+ArgC); 36420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateCall(imp, callArgs.begin(), callArgs.end()); 36520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 36620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 36720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate code for a message send expression. 36820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Value *CGObjCGNU::GenerateMessageSend(llvm::IRBuilder &Builder, 3690f984268b05edab2cc555a427c441baa9c252658Chris Lattner const llvm::Type *ReturnTy, 370391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Value *Sender, 3710f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Value *Receiver, 372391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Value *Selector, 3730f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Value** ArgV, 3740f984268b05edab2cc555a427c441baa9c252658Chris Lattner unsigned ArgC) { 37520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *cmd = GetSelector(Builder, Selector, 0); 3760f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3770f984268b05edab2cc555a427c441baa9c252658Chris Lattner // Look up the method implementation. 3780f984268b05edab2cc555a427c441baa9c252658Chris Lattner std::vector<const llvm::Type*> impArgTypes; 37920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::Type *RetTy; 38020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //TODO: Revisit this when LLVM supports aggregate return types. 38120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (ReturnTy->isSingleValueType() && ReturnTy != llvm::Type::VoidTy) { 38220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov RetTy = ReturnTy; 38320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } else { 38420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // For struct returns allocate the space in the caller and pass it up to 38520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // the sender. 38620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov RetTy = llvm::Type::VoidTy; 38720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov impArgTypes.push_back(llvm::PointerType::getUnqual(ReturnTy)); 38820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 3890f984268b05edab2cc555a427c441baa9c252658Chris Lattner impArgTypes.push_back(Receiver->getType()); 390391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner impArgTypes.push_back(SelectorTy); 3910f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3920f984268b05edab2cc555a427c441baa9c252658Chris Lattner // Avoid an explicit cast on the IMP by getting a version that has the right 3930f984268b05edab2cc555a427c441baa9c252658Chris Lattner // return type. 39420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType *impType = llvm::FunctionType::get(RetTy, impArgTypes, 3950f984268b05edab2cc555a427c441baa9c252658Chris Lattner true); 3960f984268b05edab2cc555a427c441baa9c252658Chris Lattner 3970f984268b05edab2cc555a427c441baa9c252658Chris Lattner llvm::Constant *lookupFunction = 3980f984268b05edab2cc555a427c441baa9c252658Chris Lattner TheModule.getOrInsertFunction("objc_msg_lookup", 399391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::PointerType::getUnqual(impType), 400391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Receiver->getType(), SelectorTy, NULL); 4013eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner llvm::Value *imp = Builder.CreateCall2(lookupFunction, Receiver, cmd); 4023eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner 4033eae03e7d165f20a863a9a4d7122ba2a691ab16dChris Lattner // Call the method. 40420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<llvm::Value*, 16> Args; 40520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (!ReturnTy->isSingleValueType()) { 40620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Return = Builder.CreateAlloca(ReturnTy); 40720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Args.push_back(Return); 40820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 40920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Args.push_back(Receiver); 41020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Args.push_back(cmd); 41120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Args.insert(Args.end(), ArgV, ArgV+ArgC); 4128fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner if (!ReturnTy->isSingleValueType()) { 4138fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner Builder.CreateCall(imp, Args.begin(), Args.end()); 4148fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner return Args[0]; 4158fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner } 41620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return Builder.CreateCall(imp, Args.begin(), Args.end()); 41720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 41820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 41920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generates a MethodList. Used in construction of a objc_class and 42020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// objc_category structures. 42120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateMethodList(const std::string &ClassName, 42220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &CategoryName, 42320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 42420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes, 42520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethodList) { 42620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 42720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodTy = llvm::StructType::get( 42820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Really a selector, but the runtime creates it us. 42920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Method types 43020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(IMPTy), //Method pointer 43120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 43220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Methods; 43320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 43420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = MethodTypes.size(); i < e; ++i) { 43520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 43620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(MethodNames[i], 43720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 43820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 43920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(MethodTypes[i], Zeros, 2)); 44020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Method = 44120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov TheModule.getFunction(SymbolNameForMethod(ClassName, CategoryName, 44220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodNames[i]->getStringValue(), isClassMethodList)); 44320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Method = llvm::ConstantExpr::getBitCast(Method, 44420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(IMPTy)); 44520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Method); 44620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantStruct::get(ObjCMethodTy, Elements)); 44720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 44820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 44920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of method structures 45020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCMethodArrayTy = llvm::ArrayType::get(ObjCMethodTy, 45120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodNames.size()); 45220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MethodArray = llvm::ConstantArray::get(ObjCMethodArrayTy, 45320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods); 45420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 45520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Structure containing list pointer, array and array count 45620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<const llvm::Type*, 16> ObjCMethodListFields; 45720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PATypeHolder OpaqueNextTy = llvm::OpaqueType::get(); 45820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type *NextPtrTy = llvm::PointerType::getUnqual(OpaqueNextTy); 45920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodListTy = llvm::StructType::get(NextPtrTy, 46020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, 46120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCMethodArrayTy, 46220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 46320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Refine next pointer type to concrete type 46420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::OpaqueType>( 46520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov OpaqueNextTy.get())->refineAbstractTypeTo(ObjCMethodListTy); 46620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCMethodListTy = llvm::cast<llvm::StructType>(OpaqueNextTy.get()); 46720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 46820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.clear(); 46920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantPointerNull::get( 47020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::PointerType::getUnqual(ObjCMethodListTy))); 47120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantInt::get(llvm::Type::Int32Ty, 47220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodTypes.size())); 47320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(MethodArray); 47420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 47520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 47620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCMethodListTy, Methods, ".objc_method_list"); 47720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 47820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 47920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generates an IvarList. Used in construction of a objc_class. 48020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateIvarList( 48120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 48220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 48320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets) { 48420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 48520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCIvarTy = llvm::StructType::get( 48620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 48720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 48820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, 48920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 49020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Ivars; 49120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 49220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = IvarNames.size() ; i < e ; i++) { 49320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 49420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(IvarNames[i], 49520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 49620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(IvarTypes[i], 49720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 49820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(IvarOffsets[i]); 49920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Ivars.push_back(llvm::ConstantStruct::get(ObjCIvarTy, Elements)); 50020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 50120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 50220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of method structures 50320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCIvarArrayTy = llvm::ArrayType::get(ObjCIvarTy, 50420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IvarNames.size()); 50520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 50620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 50720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 50820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get( 50920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::IntegerType>(IntTy), (int)IvarNames.size())); 51020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantArray::get(ObjCIvarArrayTy, Ivars)); 51120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Structure containing array and array count 51220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCIvarListTy = llvm::StructType::get(IntTy, 51320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ObjCIvarArrayTy, 51420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 51520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 51620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 51720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCIvarListTy, Elements, ".objc_ivar_list"); 5180f984268b05edab2cc555a427c441baa9c252658Chris Lattner} 5190f984268b05edab2cc555a427c441baa9c252658Chris Lattner 52020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov/// Generate a class structure 52120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateClassStructure( 52220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClass, 52320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass, 52420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov unsigned info, 52520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Name, 52620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Version, 52720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceSize, 52820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IVars, 52920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Methods, 53020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Protocols) { 53120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Set up the class structure 53220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Note: Several of these are char*s when they should be ids. This is 53320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // because the runtime performs this translation on load. 53420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ClassTy = llvm::StructType::get( 53520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // class_pointer 53620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // super_class 53720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // name 53820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // version 53920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // info 54020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, // instance_size 54120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IVars->getType(), // ivars 54220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods->getType(), // methods 54320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // These are all filled in by the runtime, so we pretend 54420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // dtable 54520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // subclass_list 54620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // sibling_class 54720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // protocols 54820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, // gc_object_type 54920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 55020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Zero = llvm::ConstantInt::get(LongTy, 0); 55120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *NullP = 55220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantPointerNull::get(llvm::cast<llvm::PointerType>(PtrTy)); 55320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Fill in the structure 55420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 55520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(MetaClass, PtrToInt8Ty)); 55620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(SuperClass); 55720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Name); 55820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Zero); 55920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, info)); 56020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(InstanceSize); 56120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(IVars); 56220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Methods); 56320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 56420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 56520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 56620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(Protocols, PtrTy)); 56720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NullP); 56820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an instance of the structure 56920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ClassTy, Elements, 57020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SymbolNameForClass(Name->getStringValue())); 57120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 57220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 57320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateProtocolMethodList( 57420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodNames, 57520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &MethodTypes) { 57620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the method structure type. 57720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodDescTy = llvm::StructType::get( 57820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, // Really a selector, but the runtime does the casting for us. 57920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 58020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 58120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Methods; 58220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 58320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (unsigned int i = 0, e = MethodTypes.size() ; i < e ; i++) { 58420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 58520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( llvm::ConstantExpr::getGetElementPtr(MethodNames[i], 58620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Zeros, 2)); 58720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 58820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(MethodTypes[i], Zeros, 2)); 58920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantStruct::get(ObjCMethodDescTy, Elements)); 59020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 59120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ObjCMethodArrayTy = llvm::ArrayType::get(ObjCMethodDescTy, 59220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodNames.size()); 59320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Array = llvm::ConstantArray::get(ObjCMethodArrayTy, Methods); 59420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ObjCMethodDescListTy = llvm::StructType::get( 59520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IntTy, ObjCMethodArrayTy, NULL); 59620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.clear(); 59720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(llvm::ConstantInt::get(IntTy, MethodNames.size())); 59820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Methods.push_back(Array); 59920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ObjCMethodDescListTy, Methods, ".objc_method_list"); 60020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 60120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov// Create the protocol list structure used in classes, categories and so on 60220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Constant *CGObjCGNU::GenerateProtocolList( 60320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols) { 60420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ProtocolArrayTy = llvm::ArrayType::get(PtrToInt8Ty, 60520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Protocols.size()); 60620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ProtocolListTy = llvm::StructType::get( 60720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, //Should be a recurisve pointer, but it's always NULL here. 60820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy,//FIXME: Should be size_t 60920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ProtocolArrayTy, 61020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 61120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 61220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (const std::string *iter = Protocols.begin(), *endIter = Protocols.end(); 61320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != endIter ; iter++) { 61420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Ptr = 61520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(ExistingProtocols[*iter], PtrToInt8Ty); 61620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(Ptr); 61720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 61820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * ProtocolArray = llvm::ConstantArray::get(ProtocolArrayTy, 61920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements); 62020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 62120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 62220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get( 62320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::IntegerType>(LongTy), Protocols.size())); 62420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ProtocolArray); 62520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return MakeGlobal(ProtocolListTy, Elements, ".objc_protocol_list"); 62620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 62720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 62820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Value *CGObjCGNU::GenerateProtocolRef(llvm::IRBuilder &Builder, const 62920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov char *ProtocolName) { 63020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return ExistingProtocols[ProtocolName]; 63120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 63220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 63320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovvoid CGObjCGNU::GenerateProtocol(const char *ProtocolName, 63420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols, 63520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodNames, 63620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, 63720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodNames, 63820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes) { 63920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 64020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ProtocolList = GenerateProtocolList(Protocols); 64120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *InstanceMethodList = 64220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolMethodList(InstanceMethodNames, InstanceMethodTypes); 64320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassMethodList = 64420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolMethodList(ClassMethodNames, ClassMethodTypes); 64520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Protocols are objects containing lists of the methods implemented and 64620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // protocols adopted. 64720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *ProtocolTy = llvm::StructType::get(IdTy, 64820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, 64920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ProtocolList->getType(), 65020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov InstanceMethodList->getType(), 65120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassMethodList->getType(), 65220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 65320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 65420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // The isa pointer must be set to a magic number so the runtime knows it's 65520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // the correct layout. 65620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getIntToPtr( 65720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, ProtocolVersion), IdTy)); 65820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(ProtocolName, ".objc_protocol_name")); 65920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ProtocolList); 66020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(InstanceMethodList); 66120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ClassMethodList); 66220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ExistingProtocols[ProtocolName] = 66320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getBitCast(MakeGlobal(ProtocolTy, Elements, 66420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_protocol"), IdTy); 66520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 66620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 66720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovvoid CGObjCGNU::GenerateCategory( 66820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const char *ClassName, 66920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const char *CategoryName, 67020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodNames, 67120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, 67220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodNames, 67320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes, 67420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols) { 67520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 67620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(CategoryName)); 67720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString(ClassName)); 67820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Instance method list 67920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(GenerateMethodList( 68020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassName, CategoryName, InstanceMethodNames, InstanceMethodTypes, 68120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov false), PtrTy)); 68220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Class method list 68320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(GenerateMethodList( 68420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassName, CategoryName, ClassMethodNames, ClassMethodTypes, true), 68520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy)); 68620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Protocol list 68720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast( 68820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov GenerateProtocolList(Protocols), PtrTy)); 68920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Categories.push_back(llvm::ConstantExpr::getBitCast( 69020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeGlobal(llvm::StructType::get(PtrToInt8Ty, PtrToInt8Ty, PtrTy, 69120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrTy, PtrTy, NULL), Elements), PtrTy)); 69220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 69320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovvoid CGObjCGNU::GenerateClass( 69420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const char *ClassName, 69520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const char *SuperClassName, 69620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const int instanceSize, 69720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarNames, 69820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarTypes, 69920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &IvarOffsets, 70020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodNames, 70120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &InstanceMethodTypes, 70220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodNames, 70320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<llvm::Constant *> &ClassMethodTypes, 70420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const llvm::SmallVectorImpl<std::string> &Protocols) { 70520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Get the superclass pointer. 70620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SuperClass; 70720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (SuperClassName) { 70820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SuperClass = MakeConstantString(SuperClassName, ".super_class_name"); 70920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } else { 71020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SuperClass = llvm::ConstantPointerNull::get( 71120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::cast<llvm::PointerType>(PtrToInt8Ty)); 71220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 71320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant * Name = MakeConstantString(ClassName, ".class_name"); 71420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Empty vector used to construct empty method lists 71520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::SmallVector<llvm::Constant*, 1> empty; 71620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate the method and instance variable lists 71720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MethodList = GenerateMethodList(ClassName, "", 71820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov InstanceMethodNames, InstanceMethodTypes, false); 71920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassMethodList = GenerateMethodList(ClassName, "", 72020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassMethodNames, ClassMethodTypes, true); 72120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *IvarList = GenerateIvarList(IvarNames, IvarTypes, 72220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov IvarOffsets); 72320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //Generate metaclass for class methods 72420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *MetaClassStruct = GenerateClassStructure(NULLPtr, 72520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULLPtr, 0x2L, NULLPtr, 0, Zeros[0], GenerateIvarList( 72620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov empty, empty, empty), ClassMethodList, NULLPtr); 72720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate the class structure 72820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassStruct = GenerateClassStructure(MetaClassStruct, 72920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SuperClass, 0x1L, Name, 0, 73020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, instanceSize), IvarList, 73120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodList, GenerateProtocolList(Protocols)); 73220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Add class structure to list to be added to the symtab later 73320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassStruct = llvm::ConstantExpr::getBitCast(ClassStruct, PtrToInt8Ty); 73420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(ClassStruct); 73520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 73620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 73720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikovllvm::Function *CGObjCGNU::ModuleInitFunction() { 73820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Only emit an ObjC load function if no Objective-C stuff has been called 73920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (Classes.empty() && Categories.empty() && ConstantStrings.empty() && 74020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ExistingProtocols.empty() && TypedSelectors.empty() && 7415f58b911304f7d114f929d1726a09cd1c828a5ddAnton Korobeynikov UntypedSelectors.empty()) 74220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return NULL; 7431b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman 7441b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman // Name the ObjC types to make the IR a bit easier to read 7451b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_selector", SelectorTy); 7461b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_id", IdTy); 7471b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman TheModule.addTypeName(".objc_imp", IMPTy); 7481b8956e1ce4c5770982d6e59edb16979b500677aEli Friedman 74920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Elements; 75020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Generate statics list: 75120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *StaticsArrayTy = llvm::ArrayType::get(PtrToInt8Ty, 75220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.size() + 1); 75320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ConstantStrings.push_back(NULLPtr); 75420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString("NSConstantString", 75520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_static_class_name")); 75620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantArray::get(StaticsArrayTy, ConstantStrings)); 75720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *StaticsListTy = 75820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType::get(PtrToInt8Ty, StaticsArrayTy, NULL); 75920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Statics = 76020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeGlobal(StaticsListTy, Elements, ".objc_statics"); 7614e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner llvm::ArrayType *StaticsListArrayTy = 7624e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner llvm::ArrayType::get(llvm::PointerType::getUnqual(StaticsListTy), 2); 7634e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.clear(); 7644e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.push_back(Statics); 7654e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Elements.push_back(llvm::ConstantPointerNull::get(llvm::PointerType::getUnqual(StaticsListTy))); 7664e0b2641d8aa8da8eb001b959940a9ec68f45f0dChris Lattner Statics = MakeGlobal(StaticsListArrayTy, Elements, ".objc_statics_ptr"); 76720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Statics = llvm::ConstantExpr::getBitCast(Statics, PtrTy); 76820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Array of classes, categories, and constant objects 76920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType *ClassListTy = llvm::ArrayType::get(PtrToInt8Ty, 77020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.size() + Categories.size() + 2); 77120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType *SymTabTy = llvm::StructType::get( 77220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov LongTy, 77320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov SelectorTy, 77420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type::Int16Ty, 77520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type::Int16Ty, 77620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ClassListTy, 77720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov NULL); 77820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 77920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 78020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Pointer to an array of selectors used in this module. 78120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<llvm::Constant*> Selectors; 78220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (std::map<TypedSelector, llvm::GlobalAlias*>::iterator 78320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter = TypedSelectors.begin(), iterEnd = TypedSelectors.end(); 78420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd ; ++iter) { 78520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString((*iter).first.first, 78620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_name")); 78720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(MakeConstantString((*iter).first.second, 78820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_types")); 78920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 79020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 79120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 79220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (llvm::StringMap<llvm::GlobalAlias*>::iterator 79320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter = UntypedSelectors.begin(), iterEnd = UntypedSelectors.end(); 79420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; iter++) { 79520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back( 79620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MakeConstantString((*iter).getKeyData(), ".objc_sel_name")); 79720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 79820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 79920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 80020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 80120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 80220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 80320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Selectors.push_back(llvm::ConstantStruct::get(SelStructTy, Elements)); 80420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 80520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of static selectors 80620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, Selectors.size() )); 80720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SelectorList = MakeGlobal( 80820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ArrayType::get(SelStructTy, Selectors.size()), Selectors, 80920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_selector_list"); 81020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantExpr::getBitCast(SelectorList, SelectorTy)); 81120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 81220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Now that all of the static selectors exist, create pointers to them. 81320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov int index = 0; 81420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (std::map<TypedSelector, llvm::GlobalAlias*>::iterator 81520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter=TypedSelectors.begin(), iterEnd =TypedSelectors.end(); 81620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; ++iter) { 81720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Idxs[] = {Zeros[0], 81820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, index++), Zeros[0]}; 81920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalVariable *SelPtr = new llvm::GlobalVariable(SelectorTy, true, 82020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 82120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(SelectorList, Idxs, 2), 82220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_ptr", &TheModule); 82320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (*iter).second->setAliasee(SelPtr); 82420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 82520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov for (llvm::StringMap<llvm::GlobalAlias*>::iterator 82620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter=UntypedSelectors.begin(), iterEnd = UntypedSelectors.end(); 82720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov iter != iterEnd; iter++) { 82820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *Idxs[] = {Zeros[0], 82920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantInt::get(llvm::Type::Int32Ty, index++), Zeros[0]}; 83020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalVariable *SelPtr = new llvm::GlobalVariable(SelectorTy, true, 83120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, 83220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::ConstantExpr::getGetElementPtr(SelectorList, Idxs, 2), 83320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ".objc_sel_ptr", &TheModule); 83420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov (*iter).second->setAliasee(SelPtr); 83520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 83620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of classes defined. 83720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(llvm::Type::Int16Ty, 83820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.size())); 83920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Number of categories defined 84020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(llvm::Type::Int16Ty, 84120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Categories.size())); 84220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create an array of classes, then categories, then static object instances 84320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.insert(Classes.end(), Categories.begin(), Categories.end()); 84420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // NULL-terminated list of static object instances (mainly constant strings) 84520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(Statics); 84620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Classes.push_back(NULLPtr); 84720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *ClassList = llvm::ConstantArray::get(ClassListTy, Classes); 84820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(ClassList); 84920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Construct the symbol table 85020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Constant *SymTab= MakeGlobal(SymTabTy, Elements); 85120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 85220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // The symbol table is contained in a module which has some version-checking 85320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // constants 85420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::StructType * ModuleTy = llvm::StructType::get(LongTy, LongTy, 85520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov PtrToInt8Ty, llvm::PointerType::getUnqual(SymTabTy), NULL); 85620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.clear(); 85720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Runtime version used for compatibility checking. 85820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, RuntimeVersion)); 85920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //FIXME: Should be sizeof(ModuleTy) 86020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(llvm::ConstantInt::get(LongTy, 16)); 86120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov //FIXME: Should be the path to the file where this module was declared 86220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(NULLPtr); 86320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Elements.push_back(SymTab); 86420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Module = MakeGlobal(ModuleTy, Elements); 86520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 86620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Create the load function calling the runtime entry point with the module 86720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // structure 86820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::vector<const llvm::Type*> VoidArgs; 86920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Function * LoadFunction = llvm::Function::Create( 87020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::FunctionType::get(llvm::Type::VoidTy, VoidArgs, false), 87120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::GlobalValue::InternalLinkage, ".objc_load_function", 87220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov &TheModule); 87320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::BasicBlock *EntryBB = llvm::BasicBlock::Create("entry", LoadFunction); 87420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::IRBuilder Builder; 87520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.SetInsertPoint(EntryBB); 87620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Value *Register = TheModule.getOrInsertFunction("__objc_exec_class", 87720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov llvm::Type::VoidTy, llvm::PointerType::getUnqual(ModuleTy), NULL); 87820ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateCall(Register, Module); 87920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Builder.CreateRetVoid(); 88020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov return LoadFunction; 88120ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov} 882391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattnerllvm::Function *CGObjCGNU::MethodPreamble( 88320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &ClassName, 88420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &CategoryName, 88520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov const std::string &MethodName, 886391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *ReturnTy, 887391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *SelfTy, 888391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type **ArgTy, 889391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner unsigned ArgC, 89020ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov bool isClassMethod, 891391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner bool isVarArg) { 892391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner std::vector<const llvm::Type*> Args; 8938fdf32822be2238aa7db62d40e75b168b637ab7dChris Lattner if (!ReturnTy->isSingleValueType() && ReturnTy != llvm::Type::VoidTy) { 89420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov Args.push_back(llvm::PointerType::getUnqual(ReturnTy)); 89520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ReturnTy = llvm::Type::VoidTy; 89620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 897391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Args.push_back(SelfTy); 898391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Args.push_back(SelectorTy); 899391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Args.insert(Args.end(), ArgTy, ArgTy+ArgC); 900391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 901391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::FunctionType *MethodTy = llvm::FunctionType::get(ReturnTy, 902391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner Args, 903391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner isVarArg); 90420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov std::string FunctionName = SymbolNameForMethod(ClassName, CategoryName, 90520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov MethodName, isClassMethod); 90620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov 907984d0b414bc76d3530b9bc55a5a55834ba76c607Gabor Greif llvm::Function *Method = llvm::Function::Create(MethodTy, 908391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::GlobalValue::InternalLinkage, 90920ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov FunctionName, 910391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner &TheModule); 911391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Function::arg_iterator AI = Method->arg_begin(); 91220ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // Name the struct return argument. 91320ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov // FIXME: This is probably the wrong test. 91420ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov if (!ReturnTy->isFirstClassType() && ReturnTy != llvm::Type::VoidTy) { 91520ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov AI->setName("agg.result"); 91620ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov ++AI; 91720ff3108fcd2c3bd734dc79efc22ebaa090abd41Anton Korobeynikov } 918391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner AI->setName("self"); 919391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner ++AI; 920391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner AI->setName("_cmd"); 921391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner return Method; 922391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner} 923391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner 924391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattnerclang::CodeGen::CGObjCRuntime *clang::CodeGen::CreateObjCRuntime( 925391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner llvm::Module &M, 926391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *LLVMIntType, 927391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner const llvm::Type *LLVMLongType) { 928391d77a26382dddf25da73e29fc1fa5aaaea4c6fChris Lattner return new CGObjCGNU(M, LLVMIntType, LLVMLongType); 9290f984268b05edab2cc555a427c441baa9c252658Chris Lattner} 930