fix folding of comma if given a non-constant operand.

Eli please take a look, as I'm not sure if this gets the extension warning in the right place

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59422 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/test/CodeGen/exprs.c b/test/CodeGen/exprs.c
index f1c9a5d73f..275c988ab9 100644
--- a/test/CodeGen/exprs.c
+++ b/test/CodeGen/exprs.c
@@ -39,3 +39,9 @@ int test5(const float x, float float_number) {
   return __builtin_isless(x, float_number);
 }
 
+// this one shouldn't fold
+int ola() {
+  int a=2;
+  if ((0, (int)a) & 2) { return 1; }
+  return 2;
+}