gcc/testsuite/gcc.dg/strlenopt-34.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 __attribute__ ((noinline, noclone))
   9 f1 (char b)
  10 {
  11   char a[30];
  12   v += 1;
  13   strcpy (a, "foo.bar");
  14   a[3] = b;
  15   a[4] = 0;
  16   return strlen (a);
  17 }
  18
  19 size_t __attribute__ ((noinline, noclone))
  20 f2 (char *a, char b)
  21 {
  22   v += 2;
  23   strcpy (a, "foo.bar");
  24   a[3] = b;
  25   a[4] = 0;
  26   return strlen (a);
  27 }
  28
  29 int
  30 main ()
  31 {
  32   char a[30];
  33   if (f1 ('_') != 4 || f1 (0) != 3 || f2 (a, '_') != 4 || f2 (a, 0) != 3)
  34     abort ();
  35   return 0;
  36 }
  37
  38 /* { dg-final { scan-tree-dump-times "strlen \\(" 2 "strlen" } } */