gcc/testsuite/gcc.dg/tree-ssa/20030808-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-cddce3" } */
   3
   4 extern void abort (void);
   5
   6 struct rtx_def;
   7 typedef struct rtx_def *rtx;
   8 enum rtx_code
   9 {
  10   UNKNOWN,
  11   CODE_LABEL,
  12   NOTE,
  13   LAST_AND_UNUSED_RTX_CODE = 256
  14 };
  15 typedef union rtunion_def rtunion;
  16 struct rtx_def
  17 {
  18   enum rtx_code code:16;
  19 };
  20 void
  21 delete_dead_jumptables ()
  22 {
  23   rtx insn, next;
  24   if (insn->code == CODE_LABEL)
  25     {
  26       rtx const _rtx = insn;
  27       if (_rtx->code != CODE_LABEL && _rtx->code != NOTE)
  28         abort ();
  29     }
  30   ;
  31 }
  32
  33 /* There should be no loads of ->code.  If any exist, then we failed to
  34    optimize away all the IF statements and the statements feeding
  35    their conditions.  */
  36 /* { dg-final { scan-tree-dump-times "->code" 0 "cddce3"} } */
  37
  38 /* There should be no IF statements.  */
  39 /* { dg-final { scan-tree-dump-times "if " 0 "cddce3"} } */
  40