gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-22.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-lim2-details" } */
   3
   4 volatile int x;
   5 volatile int y;
   6 void
   7 bar (int, char *, char *);
   8 void
   9 foo (int *a, int n, int m, int s, int t)
  10 {
  11   int i;
  12   int j;
  13   int k;
  14
  15   for (i = 0; i < m; i++) // Loop 1
  16     {
  17       if (__builtin_expect (x, 0))
  18         for (j = 0; j < n; j++) // Loop 2
  19           if (__builtin_expect (y, 0))
  20             for (k = 0; k < n; k++) // Loop 3
  21               {
  22                 bar (s / 5, "one", "two");
  23                 a[t] = s;
  24               }
  25       a[t] = t;
  26     }
  27 }
  28
  29 /* { dg-final { scan-tree-dump-times "out of loop 3" 4 "lim2" } } */
  30 /* { dg-final { scan-tree-dump-times "out of loop 1" 3 "lim2" } } */
  31
  32