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Rework vaarg support on X86_64

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This commit is contained in:
Alexey Prokhin
2011-04-30 15:30:57 +04:00
parent 805fb5cfc1
commit 8da0d673cf
1 changed files with 19 additions and 0 deletions
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19
gen/toir.cpp
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@@ -884,6 +884,11 @@ DValue* CallExp::toElem(IRState* p)
if (LLValue *argptr = gIR->func()->_argptr) {
DtoStore(DtoLoad(argptr), DtoBitCast(arg, getPtrToType(getVoidPtrType())));
return new DImValue(type, arg);
} else if (global.params.cpu == ARCHx86_64) {
LLValue *va_list = DtoAlloca(exp->type->nextOf());
DtoStore(va_list, arg);
va_list = DtoBitCast(va_list, getVoidPtrType());
return new DImValue(type, gIR->ir->CreateCall(GET_INTRINSIC_DECL(vastart), va_list, ""));
} else
#endif
{
@@ -891,6 +896,20 @@ DValue* CallExp::toElem(IRState* p)
return new DImValue(type, gIR->ir->CreateCall(GET_INTRINSIC_DECL(vastart), arg, ""));
}
}
#if DMDV2
else if (fndecl->llvmInternal == LLVMva_copy && global.params.cpu == ARCHx86_64) {
Expression* exp1 = (Expression*)arguments->data[0];
Expression* exp2 = (Expression*)arguments->data[1];
LLValue* arg1 = exp1->toElem(p)->getLVal();
LLValue* arg2 = exp2->toElem(p)->getLVal();
LLValue *va_list = DtoAlloca(exp1->type->nextOf());
DtoStore(va_list, arg1);
DtoStore(DtoLoad(DtoLoad(arg2)), DtoLoad(arg1));
return new DVarValue(type, arg1);
}
#endif
// va_arg instruction
else if (fndecl->llvmInternal == LLVMva_arg) {
return DtoVaArg(loc, type, (Expression*)arguments->data[0]);