gcc/testsuite/gcc.dg/tree-ssa/slsr-30.c

   1 /* Verify straight-line strength reduction fails for simple integer addition
   2    with casts thrown in when -fwrapv is used.  */
   3
   4 /* { dg-do compile { target { long_neq_int } } } */
   5 /* { dg-options "-O3 -fdump-tree-dom2 -fwrapv" } */
   6
   7 long
   8 f (int s, long c)
   9 {
  10   int a1, a2, a3;
  11   long x1, x2, x3, x;
  12
  13   a1 = 2 * s;
  14   x1 = c + a1;
  15   a2 = 4 * s;
  16   x2 = c + a2;
  17   a3 = 6 * s;
  18   x3 = c + a3;
  19   x = x1 + x2 + x3;
  20   return x;
  21 }
  22
  23 /* { dg-final { scan-tree-dump-times " \\* " 3 "dom2" } } */
  24 /* { dg-final { cleanup-tree-dump "dom2" } } */