gcc/testsuite/gcc.dg/strlenopt-31.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2" } */
   3
   4 #include "strlenopt.h"
   5
   6 __attribute__((noinline, noclone)) int
   7 bar (char *p1, const char *q)
   8 {
   9   strcpy (p1, "abcde");
  10   char *p2 = strchr (p1, '\0');
  11   strcpy (p2, q);
  12   char *p3 = strchr (p2, '\0');
  13   memcpy (p3, "x", 2);
  14   return strlen (p1);
  15 }
  16
  17 int
  18 main (void)
  19 {
  20   char buffer[10];
  21   int res = bar (buffer, "foo");
  22   if (strcmp (buffer, "abcdefoox") != 0 || res != 9)
  23     abort ();
  24   return 0;
  25 }