gcc/testsuite/gcc.dg/pr64454.c

   1 /* PR tree-optimization/64454 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-vrp1 -fno-ipa-icf" } */
   4
   5 unsigned
   6 f1 (unsigned x)
   7 {
   8   return (x % 5) % 5;
   9 }
  10
  11 int
  12 f2 (int x)
  13 {
  14   return (x % 5) % 5;
  15 }
  16
  17 int
  18 f3 (int x)
  19 {
  20   return (x % -5) % -5;
  21 }
  22
  23 unsigned
  24 f4 (unsigned x)
  25 {
  26   return (x % 5) % 6;
  27 }
  28
  29 int
  30 f5 (int x)
  31 {
  32   return (x % 5) % 6;
  33 }
  34
  35 int
  36 f6 (int x)
  37 {
  38   return (x % -5) % -6;
  39 }
  40
  41 /* { dg-final { scan-tree-dump-times "% 5" 6 "vrp1" } } */
  42 /* { dg-final { scan-tree-dump-times "% 6" 0 "vrp1" } } */