gcc/testsuite/gcc.dg/torture/20220518-1.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-funswitch-loops" } */
   3
   4 enum {
   5   MOD_WVG_MASK_TEX_USE_INT,
   6   MOD_WVG_MASK_TEX_USE_RED,
   7   MOD_WVG_MASK_TEX_USE_BLUE,
   8   MOD_WVG_MASK_TEX_USE_SAT,
   9   MOD_WVG_MASK_TEX_USE_VAL,
  10   MOD_WVG_MASK_TEX_USE_ALPHA
  11 } foo_num;
  12 float *foo_org_w;
  13 int *foo_new_w;
  14 float foo_fact;
  15 int foo_tex_use_channel, foo_i, foo_texres_0;
  16 void foo()
  17 {
  18   for (; foo_num;)
  19     switch (foo_tex_use_channel) {
  20     case MOD_WVG_MASK_TEX_USE_INT:
  21       foo_org_w[foo_i] = foo_new_w[foo_i] * foo_texres_0;
  22       break;
  23     case MOD_WVG_MASK_TEX_USE_RED:
  24       foo_org_w[foo_i] = 0;
  25     case MOD_WVG_MASK_TEX_USE_BLUE:
  26       foo_org_w[foo_i] = foo_fact + foo_org_w[foo_i];
  27       break;
  28     case MOD_WVG_MASK_TEX_USE_SAT:
  29       foo_org_w[foo_i] = foo_fact;
  30       break;
  31     case MOD_WVG_MASK_TEX_USE_VAL:
  32       foo_org_w[foo_i] = 0;
  33     case MOD_WVG_MASK_TEX_USE_ALPHA:
  34       foo_org_w[foo_i] = foo_fact + foo_org_w[foo_i];
  35       break;
  36     default:
  37       foo_org_w[foo_i] = foo_new_w[foo_i] * foo_texres_0;
  38     }
  39 }