gcc/testsuite/gcc.dg/tree-ssa/foldconst-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3 typedef union tree_node *tree;
   4 enum tree_code
   5 {
   6   OFFSET_TYPE, ENUMERAL_TYPE, BOOLEAN_TYPE, POINTER_TYPE, FIXED_POINT_TYPE,
   7 };
   8 struct tree_base
   9 {
  10   unsigned public_flag:1;
  11 };
  12 struct tree_decl_with_vis
  13 {
  14   unsigned comdat_flag:1;
  15 };
  16 union tree_node
  17 {
  18   struct tree_base base;
  19   struct tree_decl_with_vis decl_with_vis;
  20 };
  21 enum tree_index
  22 {
  23     TI_LONG_DOUBLE_PTR_TYPE, TI_INTEGER_PTR_TYPE, TI_VOID_TYPE, TI_PTR_TYPE,
  24     TI_VA_LIST_FPR_COUNTER_FIELD, TI_BOOLEAN_TYPE, TI_FILEPTR_TYPE,
  25     TI_CURRENT_TARGET_PRAGMA, TI_CURRENT_OPTIMIZE_PRAGMA, TI_MAX
  26 };
  27 extern tree global_trees[TI_MAX];
  28 emit_support_tinfos (void)
  29 {
  30   static tree *const fundamentals[] = {
  31     &global_trees[TI_VOID_TYPE], &global_trees[TI_BOOLEAN_TYPE],
  32   };
  33   int ix;
  34   for (ix = 0; fundamentals[ix]; ix++)
  35     {
  36         {
  37           tree tinfo;
  38             {
  39               ((void) (!(((tinfo)->base.public_flag) && !(__extension__ (
  40                                                                           {
  41                                                                           __typeof
  42                                                                           (tinfo)
  43                                                                           __t
  44                                                                           =
  45                                                                           (tinfo);
  46                                                                           __t;}
  47                                                           )->decl_with_vis.
  48                                                           comdat_flag)) ?
  49                        fancy_abort ("../../gcc/cp/rtti.c", 1529,
  50                                     __FUNCTION__), 0 : 0));
  51             }
  52         }
  53     }
  54 }
  55 /* We should copy loop header to fundamentals[0] and then fold it way into
  56    known value.  */
  57 /* { dg-final { scan-tree-dump-not "fundamentals.0" "optimized"} } */
  58 /* { dg-final { cleanup-tree-dump "optimized" } } */