gcc/testsuite/gcc.dg/tree-ssa/cswtch-4.c

   1 /* PR tree-optimization/79472 */
   2 /* { dg-options "-O2 -fdump-tree-switchconv" } */
   3 /* { dg-do compile } */
   4
   5 void
   6 frobulate (unsigned int v)
   7 {
   8   const char *s;
   9
  10   switch (v)
  11     {
  12     case 0:
  13       s = "foo";
  14       break;
  15     case 1:
  16       s = "bar";
  17       break;
  18     case 2:
  19       s = "spam";
  20       break;
  21     default:
  22       __builtin_abort ();
  23       break;
  24     }
  25
  26   __builtin_printf ("%s\n", s);
  27 }
  28
  29 void
  30 frobulate_for_gcc (unsigned int v)
  31 {
  32   const char *s;
  33
  34   switch (v)
  35     {
  36     case 0:
  37       s = "foo";
  38       break;
  39     case 1:
  40       s = "bar";
  41       break;
  42     case 2:
  43       s = "spam";
  44       break;
  45     default:
  46       s = (const char *) 0;
  47       break;
  48     }
  49
  50   if (!s)
  51     __builtin_abort ();
  52
  53   __builtin_printf ("%s\n", s);
  54 }
  55
  56 /* { dg-final { scan-tree-dump-times "Switch converted" 2 "switchconv" } } */
  57 /* { dg-final { scan-tree-dump-times "= CSWTCH" 2 "switchconv" } } */