gcc/testsuite/gcc.dg/torture/pr45865.c

   1 /* { dg-do compile } */
   2
   3 typedef struct rtx_def *rtx;
   4 enum machine_mode {
   5   VOIDmode,
   6   CCFPmode,
   7   CCFPUmode,
   8   MAX_MACHINE_MODE
   9 };
  10 enum mode_class {
  11   MODE_CC,
  12   MODE_FLOAT,
  13   MODE_COMPLEX_FLOAT,
  14   MODE_VECTOR_FLOAT
  15 };
  16 extern const enum mode_class mode_class[(int) MAX_MACHINE_MODE];
  17 enum rtx_code {
  18   UNKNOWN,
  19   GEU,
  20   ORDERED,
  21   CONST_INT
  22 };
  23 struct rtx_def {
  24   unsigned int code: 16;
  25   unsigned int mode : 8;
  26 };
  27 extern enum rtx_code reverse_condition (enum rtx_code);
  28 extern enum rtx_code reverse_condition_maybe_unordered (enum rtx_code);
  29 enum rtx_code
  30 reversed_comparison_code_parts (enum rtx_code code, rtx insn, rtx arg0,
  31                                 rtx arg1)
  32 {
  33   enum machine_mode mode;
  34   mode = (enum machine_mode) (arg0)->mode;
  35   if (mode == VOIDmode)
  36     mode = (enum machine_mode) (arg1)->mode;
  37   if ((mode_class[(int) (mode)]) == MODE_CC)
  38     return (mode != CCFPmode && mode != CCFPUmode
  39             ? reverse_condition (code)
  40             : reverse_condition_maybe_unordered (code));
  41   switch (code)
  42     {
  43     case GEU:
  44       return reverse_condition (code);
  45     case ORDERED:
  46       return UNKNOWN;
  47     }
  48   if (((enum rtx_code) (arg0)->code) == CONST_INT
  49       || (((enum machine_mode) (arg0)->mode) != VOIDmode
  50           && ! ((mode_class[(int) (mode)]) == MODE_FLOAT
  51                 || (mode_class[(int) (mode)]) == MODE_COMPLEX_FLOAT
  52                 || (mode_class[(int) (mode)]) == MODE_VECTOR_FLOAT)))
  53     return reverse_condition (code);
  54   return UNKNOWN;
  55 }