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kit
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sw_dense_signed.c (684B)

      1 /* A dense switch whose case values are contiguous but include negatives, so the
      2  * backend must bias the selector before indexing (or build a compare chain).
      3  * This complements the existing 0-based dense jumptable case by starting below
      4  * zero. volatile selector defeats folding. Selector -1 selects the case
      5  * returning 42. Exit code 42. */
      6 int sel(int x) {
      7   switch (x) {
      8     case -3:
      9       return 10;
     10     case -2:
     11       return 11;
     12     case -1:
     13       return 42;
     14     case 0:
     15       return 13;
     16     case 1:
     17       return 14;
     18     case 2:
     19       return 15;
     20     case 3:
     21       return 16;
     22     default:
     23       return 99;
     24   }
     25 }
     26 int test_main(void) {
     27   volatile int x = -1;
     28   return sel(x);
     29 }