gcc/testsuite/gcc.target/i386/pr45830.c

   1 /* PR target/45830 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-switchconv-all -mtune=generic" } */
   4
   5 int
   6 foo (int *a)
   7 {
   8   switch (*a)
   9     {
  10     case 0:
  11     case 3:
  12     case 1:
  13     case 2:
  14     case 4:
  15     case 23:
  16     case 26:
  17     case 19:
  18     case 5:
  19     case 21:
  20     case 20:
  21     case 22:
  22     case 27:
  23       return 1;
  24     default:
  25       return 0;
  26     }
  27 }
  28
  29 /* { dg-final { scan-tree-dump "expanding as bit test is preferable" "switchconv" } } */
  30 /* { dg-final { scan-assembler-not "CSWTCH" } } */