REPOSITORY
rL LLVM
================
Comment at: cfe/trunk/lib/CodeGen/CGAtomic.cpp:747
@@ +746,3 @@
+ if (!RetTy->isVoidType()) {
+ if (UseOptimizedLibcall) {
+ if (HaveRetTy)
----------------
robertlytton wrote:
> Hi David,
>
> I've been chasing issues with libcxx for the xcore - hence finding this late
> in the day.
>
> For non-optimized lib calls that return a value, don't we want to return the
> 'Res'?
> viz:
> if (!RetTy->isVoidType()) {
> if (HaveRetTy)
> return Res;
> if (UseOptimizedLibcall) {
> ...
>
> Have I understood the code correctly?
>
> Robert
This bug manifests itself in exactly one case as far as I can tell:
`__atomic_compare_exchange`. I'm working on a small cleanup to this code
because it's not in great shape. It'll be fixed by tonight.
http://reviews.llvm.org/D5098
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