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Updated ABI handling to be more flexible with regard to reusing lvalues and allocating fewer temporaries.

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This commit is contained in:
Tomas Lindquist Olsen
2009-03-04 17:24:25 +01:00
parent ca41cb29d9
commit 65ba1d4d88
7 changed files with 112 additions and 61 deletions
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17
gen/functions.cpp
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@@ -684,9 +684,6 @@ void DtoDefineFunction(FuncDeclaration* fd)
IrLocal* irloc = vd->ir.irLocal;
assert(irloc);
// let the abi transform the argument back first
LLValue* argvalue = f->fty->getParam(vd->type, i, irloc->value);
#if DMDV2
if (vd->nestedrefs.dim)
#else
@@ -701,11 +698,17 @@ void DtoDefineFunction(FuncDeclaration* fd)
if (!refout && (!f->fty->args[i]->byref || lazy))
{
LLValue* a = argvalue;
LLValue* v = DtoAlloca(a->getType(), vd->ident->toChars());
DtoStore(a,v);
irloc->value = v;
// alloca a stack slot for this first class value arg
LLValue* mem = DtoAlloca(DtoType(vd->type), vd->ident->toChars());
// let the abi transform the argument back first
DImValue arg_dval(vd->type, irloc->value);
f->fty->getParam(vd->type, i, &arg_dval, mem);
// set the arg var value to the alloca
irloc->value = mem;
}
if (global.params.symdebug && !(isaArgument(irloc->value) && !isaArgument(irloc->value)->hasByValAttr()) && !refout)
DtoDwarfLocalVariable(irloc->value, vd);
}