tree-data-ref.c (dr_analyze_alias): Do not set DR_SUBVARS.

2008-05-08  Richard Guenther  <rguenther@suse.de>

	* tree-data-ref.c (dr_analyze_alias): Do not set DR_SUBVARS.
	* tree-data-ref.h (struct dr_alias): Remove subvars field.
	(DR_SUBVARS): Remove.
	* tree-dfa.c (dump_subvars_for): Remove.
	(debug_subvars_for): Likewise.
	(dump_variable): Do not dump subvars.
	(remove_referenced_var): Do not remove subvars.
	* tree-flow-inline.h (clear_call_clobbered): SFTs no longer exist.
	(lookup_subvars_for_var): Remove.
	(get_subvars_for_var): Likewise.
	(get_subvars_at): Likewise.
	(get_first_overlapping_subvar): Likewise.
	(overlap_subvar): Likewise.
	* tree-flow.h (subvar_t): Remove.
	(struct var_ann_d): Remove subvars field.
	* tree-ssa-alias.c (mark_aliases_call_clobbered): Remove queued
	argument.  Remove special handling of SFTs.
	(compute_tag_properties): Likewise.
	(set_initial_properties): Likewise.
	(compute_call_clobbered): Likewise.
	(count_mem_refs): Likewise.
	(compute_memory_partitions): Likewise.
	(compute_flow_insensitive_aliasing): Likewise.
	(setup_pointers_and_addressables): Likewise.
	(new_type_alias): Likewise.
	(struct used_part): Remove.
	(used_portions): Likewise.
	(struct used_part_map): Likewise.
	(used_part_map_eq): Likewise.
	(used_part_map_hash): Likewise.
	(free_used_part_map): Likewise.
	(up_lookup): Likewise.
	(up_insert): Likewise.
	(get_or_create_used_part_for): Likewise.
	(create_sft): Likewise.
	(create_overlap_variables_for): Likewise.
	(find_used_portions): Likewise.
	(create_structure_vars): Likewise.
	* tree.def (STRUCT_FIELD_TAG): Remove.
	* tree.h (MTAG_P): Adjust.
	(struct tree_memory_tag): Remove base_for_components and
	unpartitionable flags.
	(struct tree_struct_field_tag): Remove.
	(SFT_PARENT_VAR): Likewise.
	(SFT_OFFSET): Likewise.
	(SFT_SIZE): Likewise.
	(SFT_NONADDRESSABLE_P): Likewise.
	(SFT_ALIAS_SET): Likewise.
	(SFT_UNPARTITIONABLE_P): Likewise.
	(SFT_BASE_FOR_COMPONENTS_P): Likewise.
	(union tree_node): Remove sft field.
	* alias.c (get_alias_set): Remove special handling of SFTs.
	* print-tree.c (print_node): Remove handling of SFTs.
	* tree-dump.c (dequeue_and_dump): Likewise.
	* tree-into-ssa.c (mark_sym_for_renaming): Likewise.
	* tree-nrv.c (dest_safe_for_nrv_p): Remove special handling of SFTs.
	* tree-predcom.c (set_alias_info): Do not set subvars.
	* tree-pretty-print.c (dump_generic_node): Do not handle SFTs.
	* tree-ssa-loop-ivopts.c (get_ref_tag): Likewise.
	* tree-ssa-operands.c (access_can_touch_variable): Likewise.
	(add_vars_for_offset): Remove.
	(add_virtual_operand): Remove special handling of SFTs.
	(add_call_clobber_ops): Likewise.
	(add_call_read_ops): Likewise.
	(get_asm_expr_operands): Likewise.
	(get_modify_stmt_operands): Likewise.
	(get_expr_operands): Likewise.
	(add_to_addressable_set): Likewise.
	* tree-ssa.c (verify_ssa_name): Do not handle SFTs.
	* tree-tailcall.c (suitable_for_tail_opt_p): Likewise.
	* tree-vect-transform.c (vect_create_data_ref_ptr): Do not
	set subvars.
	* tree.c (init_ttree): Remove STRUCT_FIELD_TAG initialization.
	(tree_code_size): Remove STRUCT_FIELD_TAG handling.
	(tree_node_structure): Likewise.
	* tree-ssa-structalias.c (set_uids_in_ptset): Remove special
	handling of SFTs.
	(find_what_p_points_to): Likewise.

From-SVN: r135077

1 files changed, 0 insertions, 64 deletions

diff --git a/gcc/tree-dfa.c b/gcc/tree-dfa.c
index 23e3ba7..622930f 100644
--- a/gcc/tree-dfa.c
+++ b/gcc/tree-dfa.c
@@ -272,42 +272,6 @@ debug_referenced_vars (void)
 }
 
 
-/* Dump sub-variables for VAR to FILE.  */
-
-void
-dump_subvars_for (FILE *file, tree var)
-{
-  subvar_t sv = get_subvars_for_var (var);
-  tree subvar;
-  unsigned int i;
-
-  if (!sv)
-    return;
-
-  fprintf (file, "{ ");
-
-  for (i = 0; VEC_iterate (tree, sv, i, subvar); ++i)
-    {
-      print_generic_expr (file, subvar, dump_flags);
-      fprintf (file, "@" HOST_WIDE_INT_PRINT_UNSIGNED, SFT_OFFSET (subvar));
-      if (SFT_BASE_FOR_COMPONENTS_P (subvar))
-        fprintf (file, "[B]");
-      fprintf (file, " ");
-    }
-
-  fprintf (file, "}");
-}
-
-
-/* Dumb sub-variables for VAR to stderr.  */
-
-void
-debug_subvars_for (tree var)
-{
-  dump_subvars_for (stderr, var);
-}
-
-
 /* Dump variable VAR and its may-aliases to FILE.  */
 
 void
@@ -403,12 +367,6 @@ dump_variable (FILE *file, tree var)
       dump_may_aliases_for (file, var);
     }
 
-  if (get_subvars_for_var (var))
-    {
-      fprintf (file, ", sub-vars: ");
-      dump_subvars_for (file, var);
-    }
-
   if (!is_gimple_reg (var))
     {
       if (memory_partition (var))
@@ -422,16 +380,6 @@ dump_variable (FILE *file, tree var)
 	  fprintf (file, ", partition symbols: ");
 	  dump_decl_set (file, MPT_SYMBOLS (var));
 	}
-
-      if (TREE_CODE (var) == STRUCT_FIELD_TAG)
-	{
-	  fprintf (file, ", offset: " HOST_WIDE_INT_PRINT_UNSIGNED,
-		   SFT_OFFSET (var));
-	  fprintf (file, ", base for components: %s",
-		   SFT_BASE_FOR_COMPONENTS_P (var) ? "NO" : "YES");
-	  fprintf (file, ", partitionable: %s",
-		   SFT_UNPARTITIONABLE_P (var) ? "NO" : "YES");
-	}
     }
 
   fprintf (file, "\n");
@@ -766,18 +714,6 @@ remove_referenced_var (tree var)
   struct tree_decl_minimal in;
   void **loc;
   unsigned int uid = DECL_UID (var);
-  subvar_t sv;
-
-  /* If we remove a var, we should also remove its subvars, as we kill
-     their parent var and its annotation.  */
-  if (var_can_have_subvars (var)
-      && (sv = get_subvars_for_var (var)))
-    {
-      unsigned int i;
-      tree subvar;
-      for (i = 0; VEC_iterate (tree, sv, i, subvar); ++i)
-        remove_referenced_var (subvar);
-    }
 
   clear_call_clobbered (var);
   if ((v_ann = var_ann (var)))