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-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/phi-opt-4.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-4.c b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-4.c
new file mode 100644
index 000000000..efd9228b6
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-4.c
@@ -0,0 +1,17 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+_Bool t();
+_Bool t1();
+
+_Bool f1()
+{
+ return t() && t1();
+}
+
+/* There should be only one if, the outer one; the inner one
+ should have been changed to straight line code with the
+ value of b (except that we don't fold ! (b != 0) into b
+ which means that we miss a sib calling opportunity). */
+/* { dg-final { scan-tree-dump-times "if " 1 "optimized"} } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */