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Adds explicit alignment information for alloca instructions in general, there's a few cases that still needs to be looked at but this should catch the majority. Fixes ticket #293 .

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This commit is contained in:
Tomas Lindquist Olsen
2009-05-14 13:26:40 +02:00
parent 5694ec18ff
commit f5d635dfc7
16 changed files with 61 additions and 44 deletions
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27
gen/llvmhelpers.cpp
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@@ -95,14 +95,29 @@ void DtoDeleteArray(DValue* arr)
////////////////////////////////////////////////////////////////////////////////////////*/
llvm::AllocaInst* DtoAlloca(const LLType* lltype, const std::string& name)
llvm::AllocaInst* DtoAlloca(Type* type, const char* name)
{
return new llvm::AllocaInst(lltype, name, gIR->topallocapoint());
const llvm::Type* lltype = DtoType(type);
llvm::AllocaInst* ai = new llvm::AllocaInst(lltype, name, gIR->topallocapoint());
ai->setAlignment(type->alignsize());
return ai;
}
llvm::AllocaInst* DtoAlloca(const LLType* lltype, LLValue* arraysize, const std::string& name)
llvm::AllocaInst* DtoArrayAlloca(Type* type, unsigned arraysize, const char* name)
{
return new llvm::AllocaInst(lltype, arraysize, name, gIR->topallocapoint());
const llvm::Type* lltype = DtoType(type);
llvm::AllocaInst* ai = new llvm::AllocaInst(
lltype, DtoConstUint(arraysize), name, gIR->topallocapoint());
ai->setAlignment(type->alignsize());
return ai;
}
llvm::AllocaInst* DtoRawAlloca(const llvm::Type* lltype, size_t alignment, const char* name)
{
llvm::AllocaInst* ai = new llvm::AllocaInst(lltype, name, gIR->topallocapoint());
if (alignment)
ai->setAlignment(alignment);
return ai;
}
@@ -894,7 +909,7 @@ DValue* DtoDeclarationExp(Dsymbol* declaration)
if(gTargetData->getTypeSizeInBits(lltype) == 0)
allocainst = llvm::ConstantPointerNull::get(getPtrToType(lltype));
else
allocainst = DtoAlloca(lltype, vd->toChars());
allocainst = DtoAlloca(vd->type, vd->toChars());
//allocainst->setAlignment(vd->type->alignsize()); // TODO
vd->ir.irLocal = new IrLocal(vd);
@@ -1010,7 +1025,7 @@ LLValue* DtoRawVarDeclaration(VarDeclaration* var, LLValue* addr)
LLValue* allocaval = NULL;
if (!addr && (!var->ir.irLocal || !var->ir.irLocal->value))
{
addr = DtoAlloca(DtoType(var->type), var->toChars());
addr = DtoAlloca(var->type, var->toChars());
// add debug info
if (global.params.symdebug)