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Implement support for intrinsics returning struct types

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(such as llvm.*.with.overflow)
This commit is contained in:
Frits van Bommel
2009-02-26 22:47:06 +01:00
parent 693e796893
commit 4f51adc810
3 changed files with 77 additions and 14 deletions
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18
gen/tocall.cpp
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@@ -464,8 +464,22 @@ DValue* DtoCallFunction(Loc& loc, Type* resulttype, DValue* fnval, Expressions*
// get return value
LLValue* retllval = (retinptr) ? args[0] : call->get();
// do abi specific return value fixups
retllval = gABI->getRet(tf, retllval);
if (tf->linkage == LINKintrinsic)
{
// Ignore ABI for intrinsics
Type* rettype = tf->next;
if (rettype->ty == Tstruct) {
// LDC assumes structs are in memory, so put it there.
LLValue* mem = DtoAlloca(retllval->getType());
DtoStore(retllval, mem);
retllval = mem;
}
}
else
{
// do abi specific return value fixups
retllval = gABI->getRet(tf, retllval);
}
// repaint the type if necessary
if (resulttype)