view gen/tollvm.h @ 945:03d7c4aac654

SWITCHED TO LLVM 2.5 ! Applied patch from ticket #129 to compile against latest LLVM. Thanks Frits van Bommel. Fixed implicit return by asm block at the end of a function on x86-32. Other architectures will produce an error at the moment. Adding support for new targets is fairly simple. Fixed return calling convention for complex numbers, ST and ST(1) were switched around. Added some testcases. I've run a dstress test and there are no regressions. However, the runtime does not seem to compile with symbolic debug information. -O3 -release -inline works well and is what I used for the dstress run. Tango does not compile, a small workaround is needed in See ticket #206 .
author Tomas Lindquist Olsen <>
date Sun, 08 Feb 2009 05:26:54 +0100
parents 8e6135be6999
children 2667e3a145be
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#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);

// returns if the type should be returned in a hidden pointer arguement
bool DtoIsReturnedInArg(Type* type);

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
const LLStructType* DtoDelegateType(Type* t);
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);

// to constant helpers
LLConstantInt* DtoConstSize_t(size_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);
void DtoStore(LLValue* src, LLValue* dst);
LLValue* DtoBitCast(LLValue* v, const LLType* t, const char* name=0);
LLConstant* DtoBitCast(LLConstant* v, const LLType* t);

// 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.
void DtoMemCpy(LLValue* dst, LLValue* src, LLValue* nbytes);

 * 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