Fix Sema and IRGen for atomic compound assignment so it has the right semantics when promotions are involved.
(As far as I can tell, this only affects some edge cases.)
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158591 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index 0603592..41ac77b 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -1276,7 +1276,7 @@
// If the common type isn't a real floating type, then the arguments were
// invalid for this operation.
- if (!Res->isRealFloatingType())
+ if (Res.isNull() || !Res->isRealFloatingType())
return Diag(OrigArg0.get()->getLocStart(),
diag::err_typecheck_call_invalid_ordered_compare)
<< OrigArg0.get()->getType() << OrigArg1.get()->getType()