--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/guality/pr54693.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,29 @@
+/* PR debug/54693 */
+/* { dg-do run } */
+/* { dg-options "-g" } */
+
+__attribute__((noinline, noclone)) void
+foo (char *str, char c)
+{
+  asm volatile ("" : : "r" (str), "r" (c) : "memory");
+  *str = c;
+}
+
+int
+main ()
+{
+  int i;
+  char c;
+  char arr[11];
+
+  for (i = 0; i < 10; i++)
+    {
+      c = 0x30 + i;
+      foo (&arr[i], c); /* { dg-final { gdb-test 22 "i" "c - 48" } } */
+    }
+  arr[10] = 0;
+
+  __builtin_printf ("arr = %s\n", arr);
+  return 0;
+}
+