Fix <rdar://problem/6703892> by not warning about self-comparisons of enum

constants.

llvm-svn: 67390

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/test/Sema/self-comparison.c b/clang/test/Sema/self-comparison.c
index 023afb7926f..8bf54fde9f5 100644
--- a/clang/test/Sema/self-comparison.c
+++ b/clang/test/Sema/self-comparison.c
@@ -23,3 +23,11 @@ int bar(float x) {
 int bar2(float x) {
   return x != x; // no-warning
 }
+
+// Motivated by <rdar://problem/6703892>, self-comparisons of enum constants
+// should not be warned about.  These can be expanded from macros, and thus
+// are usually deliberate.
+int compare_enum() {
+  enum { A };
+  return A == A; // no-warning
+}