gcc/testsuite/gcc.dg/pr19105.c

   1 /* PR tree-optimization/19105 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-reassoc1-details" } */
   4
   5 enum e
   6 {
   7   a, b, c, d, e, f, g, h
   8 };
   9
  10 int range1 (enum e v, int x)
  11 {
  12   return x && v != c && v != d && v != e;
  13 }
  14
  15 int range2 (enum e v, int x)
  16 {
  17   return x && (v != c && v != d && v != e);
  18 }
  19
  20 /* { dg-final { scan-tree-dump-times "Optimizing range tests v_\[0-9\]*.D. -.2, 2. and -.3, 4.\[\n\r\]* into|Optimizing range tests v_\[0-9\]*.D. -.2, 2. and -.3, 3. and -.4, 4.\[\n\r\]* into" 1 "reassoc1" } } */
  21