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, 1 insertions, 37 deletions

diff --git a/gcc/tree.h b/gcc/tree.h
index 0b4b443..3f1e7b6 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -109,8 +109,7 @@ extern const enum tree_code_class tree_code_type[];
 /* Nonzero if CODE represents a memory tag.  */
 
 #define MTAG_P(CODE) \
-  (TREE_CODE (CODE) == STRUCT_FIELD_TAG		\
-   || TREE_CODE (CODE) == NAME_MEMORY_TAG	\
+  (TREE_CODE (CODE) == NAME_MEMORY_TAG		\
    || TREE_CODE (CODE) == SYMBOL_MEMORY_TAG	\
    || TREE_CODE (CODE) == MEMORY_PARTITION_TAG)
 
@@ -2544,45 +2543,11 @@ struct tree_memory_tag GTY(())
 
   /* True if this tag has global scope.  */
   unsigned int is_global : 1;
-
-  /* True if this tag is the first field of an aggregate type that
-     can be used to find adjacent SFTs belonging to the same aggregate.  */
-  unsigned int base_for_components : 1;
-
-  /* True if this tag should not be grouped into a memory partition.  */
-  unsigned int unpartitionable : 1;
 };
 
 #define MTAG_GLOBAL(NODE) (TREE_MEMORY_TAG_CHECK (NODE)->mtag.is_global)
 #define MTAG_ALIASES(NODE) (TREE_MEMORY_TAG_CHECK (NODE)->mtag.aliases)
 
-struct tree_struct_field_tag GTY(())
-{
-  struct tree_memory_tag common;
-
-  /* Parent variable.  */
-  tree parent_var;
-
-  /* Offset inside structure.  */
-  unsigned HOST_WIDE_INT offset;
-
-  /* Size of the field.  */
-  unsigned HOST_WIDE_INT size;
-
-  /* Alias set for a DECL_NONADDRESSABLE_P field.  Otherwise -1.  */
-  alias_set_type alias_set;
-};
-#define SFT_PARENT_VAR(NODE) (STRUCT_FIELD_TAG_CHECK (NODE)->sft.parent_var)
-#define SFT_OFFSET(NODE) (STRUCT_FIELD_TAG_CHECK (NODE)->sft.offset)
-#define SFT_SIZE(NODE) (STRUCT_FIELD_TAG_CHECK (NODE)->sft.size)
-#define SFT_NONADDRESSABLE_P(NODE) \
-  (STRUCT_FIELD_TAG_CHECK (NODE)->sft.alias_set != -1)
-#define SFT_ALIAS_SET(NODE) (STRUCT_FIELD_TAG_CHECK (NODE)->sft.alias_set)
-#define SFT_UNPARTITIONABLE_P(NODE) \
-  (STRUCT_FIELD_TAG_CHECK (NODE)->sft.common.unpartitionable)
-#define SFT_BASE_FOR_COMPONENTS_P(NODE) \
-  (STRUCT_FIELD_TAG_CHECK (NODE)->sft.common.base_for_components)
-
 /* Memory Partition Tags (MPTs) group memory symbols under one
    common name for the purposes of placing memory PHI nodes.  */
 
@@ -3480,7 +3445,6 @@ union tree_node GTY ((ptr_alias (union lang_tree_node),
   struct tree_value_handle GTY ((tag ("TS_VALUE_HANDLE"))) value_handle;
   struct tree_constructor GTY ((tag ("TS_CONSTRUCTOR"))) constructor;
   struct tree_memory_tag GTY ((tag ("TS_MEMORY_TAG"))) mtag;
-  struct tree_struct_field_tag GTY ((tag ("TS_STRUCT_FIELD_TAG"))) sft;
   struct tree_omp_clause GTY ((tag ("TS_OMP_CLAUSE"))) omp_clause;
   struct tree_memory_partition_tag GTY ((tag ("TS_MEMORY_PARTITION_TAG"))) mpt;
 };