1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vrp26.c b/gcc/testsuite/gcc.dg/tree-ssa/vrp26.c
new file mode 100644
index 000000000..621541630
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp26.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-vrp1" } */
+
+int 
+foo(int a)
+{
+  int z = a | 1;
+  return z != 0;
+}
+
+/* VRP should optimize this to a trivial "return 1".   */
+/* { dg-final { scan-tree-dump-times "return 1" 1 "vrp1" } } * /
+/* { dg-final { cleanup-tree-dump "vrp1" } } */
+
+
+
+