PR4097: add logic to Evaluate to handle pointer equality comparisons.

llvm-svn: 70317
diff --git a/clang/test/Sema/const-eval.c b/clang/test/Sema/const-eval.c
index ce1aacd..79f96b9 100644
--- a/clang/test/Sema/const-eval.c
+++ b/clang/test/Sema/const-eval.c
@@ -63,3 +63,5 @@
 static const struct a V1 = (struct a){ 1, 2};
 
 EVAL_EXPR(30, (int)(_Complex float)((1<<30)-1) == (1<<30) ? 1 : -1)
+EVAL_EXPR(31, (int*)0 == (int*)0 ? 1 : -1)
+EVAL_EXPR(32, (int*)0 != (int*)0 ? -1 : 1)