gcc/testsuite/gcc.dg/strlenopt-35.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -fdump-tree-strlen" } */
   3
   4 #include "strlenopt.h"
   5
   6 volatile int v;
   7
   8 size_t
   9 f1 (char *a1)
  10 {
  11   v += 1;
  12   size_t x = strlen (a1);
  13   char *a2 = a1 + x;
  14   a2[0] = '1';
  15   a2[1] = '2';
  16   a2[2] = '3';
  17   a2[3] = 0;
  18   return strlen (a1);
  19 }
  20
  21 int
  22 main ()
  23 {
  24   char a[30];
  25   strcpy (a, "abcd");
  26   if (f1 (a) != 7)
  27     abort ();
  28   return 0;
  29 }
  30
  31 /* { dg-final { scan-tree-dump-times "strlen \\(" 1 "strlen" } } */