Mercurial > projects > ldc
view gen/tollvm.h @ 1479:4f7d50c744ed
Rewrite `StructLiteralExp::toElem` to store individual fields instead of
generating a constant to fill the entire struct with a single `store`.
This is much more efficient at compile time (fixing #320) and vastly reduces
the size of the emitted code. Since LLVM no longer needs to keep the data for
all fields in "registers" until the store happens, it should also be more
efficient at run time in cases where the fields aren't assigned with constants.
There's also some code clean-up by removing duplicated logic.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Sat, 06 Jun 2009 20:16:13 +0200 |
parents | 83bdf7bed9c5 |
children | b3ba2c6ff038 |
line wrap: on
line source
#ifndef LDC_GEN_TOLLVM_H #define LDC_GEN_TOLLVM_H #include "gen/llvm.h" #include "lexer.h" #include "mtype.h" #include "attrib.h" #include "declaration.h" #include "gen/structs.h" // D->LLVM type handling stuff const LLType* DtoType(Type* t); // same as DtoType except it converts 'void' to 'i8' const LLType* DtoTypeNotVoid(Type* t); // returns true is the type must be passed by pointer bool DtoIsPassedByRef(Type* type); // should argument be zero or sign extended unsigned DtoShouldExtend(Type* type); // tuple helper // takes a arguments list and makes a struct type out of them //const LLType* DtoStructTypeFromArguments(Arguments* arguments); // delegate helpers LLValue* DtoDelegateEquals(TOK op, LLValue* lhs, LLValue* rhs); // return linkage type for symbol using the current ir state for context LLGlobalValue::LinkageTypes DtoLinkage(Dsymbol* sym); LLGlobalValue::LinkageTypes DtoInternalLinkage(Dsymbol* sym); LLGlobalValue::LinkageTypes DtoExternalLinkage(Dsymbol* sym); // TODO: this one should be removed!!! LLValue* DtoPointedType(LLValue* ptr, LLValue* val); // some types const LLType* DtoSize_t(); const LLStructType* DtoInterfaceInfoType(); const LLStructType* DtoMutexType(); const LLStructType* DtoModuleReferenceType(); // getelementptr helpers LLValue* DtoGEP1(LLValue* ptr, LLValue* i0, const char* var=NULL, llvm::BasicBlock* bb=NULL); LLValue* DtoGEP(LLValue* ptr, LLValue* i0, LLValue* i1, const char* var=NULL, llvm::BasicBlock* bb=NULL); LLValue* DtoGEPi1(LLValue* ptr, unsigned i0, const char* var=NULL, llvm::BasicBlock* bb=NULL); LLValue* DtoGEPi(LLValue* ptr, unsigned i0, unsigned i1, const char* var=NULL, llvm::BasicBlock* bb=NULL); LLConstant* DtoGEPi(LLConstant* ptr, unsigned i0, unsigned i1); // to constant helpers LLConstantInt* DtoConstSize_t(uint64_t); LLConstantInt* DtoConstUint(unsigned i); LLConstantInt* DtoConstInt(int i); LLConstantInt* DtoConstUbyte(unsigned char i); llvm::ConstantFP* DtoConstFP(Type* t, long double value); LLConstant* DtoConstString(const char*); LLConstant* DtoConstStringPtr(const char* str, const char* section = 0); LLConstant* DtoConstBool(bool); // llvm wrappers LLValue* DtoLoad(LLValue* src, const char* name=0); LLValue* DtoAlignedLoad(LLValue* src, const char* name=0); void DtoStore(LLValue* src, LLValue* dst); void DtoAlignedStore(LLValue* src, LLValue* dst); LLValue* DtoBitCast(LLValue* v, const LLType* t, const char* name=0); LLConstant* DtoBitCast(LLConstant* v, const LLType* t); LLValue* DtoInsertValue(LLValue* aggr, LLValue* v, unsigned idx); LLValue* DtoExtractValue(LLValue* aggr, unsigned idx); // llvm::dyn_cast wrappers const LLPointerType* isaPointer(LLValue* v); const LLPointerType* isaPointer(const LLType* t); const LLArrayType* isaArray(LLValue* v); const LLArrayType* isaArray(const LLType* t); const LLStructType* isaStruct(LLValue* v); const LLStructType* isaStruct(const LLType* t); const LLFunctionType* isaFunction(LLValue* v); const LLFunctionType* isaFunction(const LLType* t); LLConstant* isaConstant(LLValue* v); LLConstantInt* isaConstantInt(LLValue* v); llvm::Argument* isaArgument(LLValue* v); LLGlobalVariable* isaGlobalVar(LLValue* v); // llvm::T::get(...) wrappers const LLPointerType* getPtrToType(const LLType* t); const LLPointerType* getVoidPtrType(); llvm::ConstantPointerNull* getNullPtr(const LLType* t); LLConstant* getNullValue(const LLType* t); // type sizes size_t getTypeBitSize(const LLType* t); size_t getTypeStoreSize(const LLType* t); size_t getTypePaddedSize(const LLType* t); // type alignments unsigned char getABITypeAlign(const LLType* t); unsigned char getPrefTypeAlign(const LLType* t); // get biggest type, for unions ... const LLType* getBiggestType(const LLType** begin, size_t n); // pair type helpers LLValue* DtoAggrPair(const LLType* type, LLValue* V1, LLValue* V2, const char* name = 0); LLValue* DtoAggrPair(LLValue* V1, LLValue* V2, const char* name = 0); LLValue* DtoAggrPaint(LLValue* aggr, const LLType* as); LLValue* DtoAggrPairSwap(LLValue* aggr); /** * Generates a call to llvm.memset.i32 (or i64 depending on architecture). * @param dst Destination memory. * @param nbytes Number of bytes to overwrite. */ void DtoMemSetZero(LLValue* dst, LLValue* nbytes); /** * Generates a call to llvm.memcpy.i32 (or i64 depending on architecture). * @param dst Destination memory. * @param src Source memory. * @param nbytes Number of bytes to copy. * @param align The minimum alignment of the source and destination memory. */ void DtoMemCpy(LLValue* dst, LLValue* src, LLValue* nbytes, unsigned align = 0); /** * Generates a call to C memcmp. */ LLValue* DtoMemCmp(LLValue* lhs, LLValue* rhs, LLValue* nbytes); /** * The same as DtoMemSetZero but figures out the size itself by "dereferencing" the v pointer once. * @param v Destination memory. */ void DtoAggrZeroInit(LLValue* v); /** * The same as DtoMemCpy but figures out the size itself by "dereferencing" dst the pointer once. * @param dst Destination memory. * @param src Source memory. */ void DtoAggrCopy(LLValue* dst, LLValue* src); /** * Generates a call to llvm.memory.barrier * @param ll load-load * @param ls load-store * @param sl store-load * @param ss store-store * @param device special device flag */ void DtoMemoryBarrier(bool ll, bool ls, bool sl, bool ss, bool device=false); #include "enums.h" #endif // LDC_GEN_TOLLVM_H