gcc/testsuite/gcc.dg/torture/ssa-fre-3.c

   1 /* { dg-do compile } */
   2 /* { dg-skip-if "" { *-*-* } { "-O0" } { "" } } */
   3 /* { dg-additional-options "-fdump-tree-fre1" } */
   4
   5 int x;
   6 int main()
   7 {
   8   x = 0;
   9   int z = x;
  10   int w = 1;
  11   for (int i = 0; i < 32; ++i)
  12     {
  13       if (z)
  14         w = 2;
  15       else
  16         w = 1;
  17       if (w == 2)
  18         __builtin_abort ();
  19     }
  20   return w;
  21 }
  22
  23 /* { dg-final { scan-tree-dump-not "abort" "fre1" } } */