Make test pass in Release builds, which use a different naming scheme for llvm values.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162771 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/exprs.c b/test/CodeGen/exprs.c
index 01abd50..f8f2833 100644
--- a/test/CodeGen/exprs.c
+++ b/test/CodeGen/exprs.c
@@ -182,5 +182,5 @@
   __int128 x = 2;
   x--;
   extfunc(x);
-// CHECK: add nsw i128 %0, -1
+// CHECK: add nsw i128 %{{.}}, -1
 }