gcc/testsuite/gcc.target/powerpc/ppc-switch-2.c

   1 /* { dg-do compile { target { powerpc*-*-* } } } */
   2 /* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
   3 /* { dg-options "-O2 --param case-values-threshold=20" } */
   4 /* { dg-final { scan-assembler-not "mtctr" } } */
   5 /* { dg-final { scan-assembler-not "bctr" } } */
   6
   7 /* Force using if tests, instead of a dispatch table.  */
   8
   9 extern long call (long);
  10
  11 long
  12 test_switch (long a, long b)
  13 {
  14   long c;
  15
  16   switch (a)
  17     {
  18     case 0:  c = -b;    break;
  19     case 1:  c = ~b;    break;
  20     case 2:  c = b+1;   break;
  21     case 3:  c = b-2;   break;
  22     case 4:  c = b*3;   break;
  23     case 5:  c = b/4;   break;
  24     case 6:  c = b<<5;  break;
  25     case 7:  c = b>>6;  break;
  26     case 8:  c = b|7;   break;
  27     case 9:  c = b^8;   break;
  28     default: c = b&9;   break;
  29     }
  30
  31   return call (c) + 1;
  32 }