gcc/testsuite/gcc.dg/strcmpopt_4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-strlen" } */
   3
   4 typedef struct { char s[8]; int x; } S;
   5
   6 extern int max_i;
   7
   8 int f_param (S s)
   9 {
  10   int result = 0;
  11   for (int i = 0; i < max_i; i++)
  12     result += __builtin_strcmp (s.s, "abc") != 0 ? 2 : 1;
  13   return result;
  14 }
  15
  16
  17 S s;
  18
  19 int f_object (void)
  20 {
  21   int result = 0;
  22   for (int i = 0; i < max_i; i++)
  23     result += __builtin_strcmp (s.s, "abc") != 0 ? 2 : 1;
  24   return result;
  25 }
  26
  27 /* { dg-final { scan-tree-dump-times "cmp_eq \\(" 2 "strlen1" } } */