gcc/testsuite/gcc.dg/tree-ssa/pr114009.c

   1 /* PR tree-optimization/114009 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -Wno-psabi -fdump-tree-forwprop1" } */
   4 /* { dg-final { scan-tree-dump-times "  return 0;" 3 "forwprop1" } } */
   5 /* { dg-final { scan-tree-dump-times "  (?:return|<retval> =) { 0, 0, 0, 0 };" 1 "forwprop1" } } */
   6
   7 int
   8 foo (int x)
   9 {
  10   x = (x / 2) * 2;
  11   return (!x) * x;
  12 }
  13
  14 int
  15 bar (int x, int y)
  16 {
  17   (void) x;
  18   return y * !y;
  19 }
  20
  21 unsigned long long
  22 baz (unsigned long long x)
  23 {
  24   return (!x) * x;
  25 }
  26
  27 typedef int V __attribute__((vector_size (4 * sizeof (int))));
  28
  29 V
  30 qux (V x)
  31 {
  32   return x * (x == 0);
  33 }