--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr45397.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,23 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-phiopt1" } */
+
+int foo_add (const unsigned char *tmp, int i, int val)
+{
+  return (unsigned char)(((tmp[i] + val)>0xFF)?0xFF:(((tmp[i] + val)<0)?0:(tmp[i] + val)));
+}
+
+int foo_sub (const unsigned char *tmp, int i, int val)
+{
+  return (unsigned char)(((tmp[i] - val)>0xFF)?0xFF:(((tmp[i] - val)<0)?0:(tmp[i] - val)));
+}
+
+int foo_mul (const unsigned char *tmp, int i, int val)
+{
+  return (unsigned char)(((tmp[i] * val)>0xFF)?0xFF:(((tmp[i] * val)<0)?0:(tmp[i] * val)));
+}
+
+/* All cases should end up using min/max for the saturated operations and
+   have no control flow.  */
+/* { dg-final { scan-tree-dump-times "MAX_EXPR" 3 "phiopt1" } } */
+/* { dg-final { scan-tree-dump-times "MIN_EXPR" 3 "phiopt1" } } */
+/* { dg-final { scan-tree-dump-not "if " "phiopt1" } } */