libgomp/testsuite/libgomp.oacc-c-c++-common/switch-conversion.c

   1 /* PR tree-optimization/85063 */
   2 /* { dg-additional-options "-ftree-switch-conversion" } */
   3
   4 #include <stdlib.h>
   5
   6 #pragma acc routine seq
   7 static int __attribute__((noinline)) foo (int n)
   8 {
   9   switch (n & 3)
  10     {
  11     case 0: return 4;
  12     case 1: return 3;
  13     case 2: return 2;
  14     default:
  15       return 1;
  16     }
  17 }
  18
  19 int
  20 main (void)
  21 {
  22   int n[1];
  23
  24   n[0] = 4;
  25
  26 #pragma acc parallel copy(n)
  27   {
  28     n[0] = foo (n[0]);
  29   }
  30
  31   if (n[0] != 4)
  32     abort ();
  33
  34   return 0;
  35 }