--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-64.c	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,21 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-fre1-details -fdump-tree-dse1-details" } */
+
+int foo(unsigned char c, signed char d, int e)
+{
+  int res = 0;
+  char x[256];
+  __builtin_memset (x, c, 256);
+  res += x[54];
+  __builtin_memset (x, d, 256);
+  res += x[54];
+  __builtin_memset (x, e, 256);
+  res += x[54];
+  return res;
+}
+
+/* The loads get replaced with conversions from c or d and e.  */
+/* { dg-final { scan-tree-dump-times "Inserted" 2 "fre1" } } */
+/* { dg-final { scan-tree-dump-times "Replaced x" 3 "fre1" } } */
+/* And the memsets removed as dead.  */
+/* { dg-final { scan-tree-dump-times "Deleted dead call" 3 "dse1" } } */