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Rewritten DtoArrayInit().

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It does not create calls to runtime functions and generates a faster code, especially if optimizations are on.
This commit is contained in:
Alexey Prokhin
2011-11-01 14:19:55 +04:00
parent 40fa7653e2
commit 22d0f00027
2 changed files with 35 additions and 165 deletions
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33
gen/runtime.cpp
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@@ -534,39 +534,10 @@ static void LLVM_D_BuildRuntimeModule()
/////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////
#define ARRAY_INIT(TY,suffix) \
{ \
std::string fname = (llvm::StringRef("_d_array_init_") + llvm::StringRef(suffix)).str(); \
std::vector<const LLType*> types; \
types.push_back(rt_ptr(TY)); \
types.push_back(sizeTy); \
types.push_back(TY); \
const llvm::FunctionType* fty = llvm::FunctionType::get(voidTy, types, false); \
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M) \
->setAttributes(Attr_1_NoCapture); \
}
ARRAY_INIT(shortTy,"i16")
ARRAY_INIT(intTy,"i32")
ARRAY_INIT(longTy,"i64")
ARRAY_INIT(floatTy,"float")
ARRAY_INIT(doubleTy,"double")
ARRAY_INIT(realTy,"real")
ARRAY_INIT(cfloatTy,"cfloat")
ARRAY_INIT(cdoubleTy,"cdouble")
ARRAY_INIT(crealTy,"creal")
ARRAY_INIT(voidPtrTy,"pointer")
#undef ARRAY_INIT
// array init mem
// void _d_array_init_mem(void* a, size_t na, void* v, size_t nv)
// +
// array slice copy when assertions are on!
// void _d_array_slice_copy(void* dst, size_t dstlen, void* src, size_t srclen)
{
llvm::StringRef fname("_d_array_init_mem");
llvm::StringRef fname2("_d_array_slice_copy");
llvm::StringRef fname("_d_array_slice_copy");
std::vector<const LLType*> types;
types.push_back(voidPtrTy);
types.push_back(sizeTy);
@@ -575,8 +546,6 @@ static void LLVM_D_BuildRuntimeModule()
const llvm::FunctionType* fty = llvm::FunctionType::get(voidTy, types, false);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M)
->setAttributes(Attr_1_3_NoCapture);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname2, M)
->setAttributes(Attr_1_3_NoCapture);
}
/////////////////////////////////////////////////////////////////////////////////////