================
@@ -2608,9 +2611,12 @@ bool SystemZTargetLowering::CanLowerReturn(
const Type *RetTy) const {
// Special case that we cannot easily detect in RetCC_SystemZ since
// i128 may not be a legal type.
- for (auto &Out : Outs)
- if (Out.ArgVT.isScalarInteger() && Out.ArgVT.getSizeInBits() > 64)
- return false;
+ // On z/OS we need to skip the convention of passing the return value on
+ // the stack used on zLinux.
+ if (Subtarget.isTargetLinux())
----------------
uweigand wrote:
I'd prefer to use `!Subtarget.isTargetzOS()` instead of adding this new
predicate.
https://github.com/llvm/llvm-project/pull/223026
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