tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.

2006-02-15 Daniel Berlin  <dberlin@dberlin.org>

	* tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
	(tree_code_size): Ditto.
	* tree.h (struct tree_memory_tag): Remove parent_var.
	(struct tree_struct_field_tag): New.
	(SFT_OFFSET): New.
	(SFT_SIZE): New.
	(union tree_node): Add sft member.
	* tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
	specially here.
	(create_sft): Add size and offset argument, set SFT_OFFSET and
	SFT_SIZE.
	(create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
	* treestruct.def: Add TS_STRUCT_FIELD_TAG.
	* tree-flow-inline.h (get_subvar_at): Update for
	SFT_OFFSET/SFT_SIZE.
	(var_can_have_subvars): Ditto.
	(overlap_subvar): Ditto.
	* print-tree.c (print_node): Print out interesting things for
	SFT's.
	* tree-flow.h (struct subvar): Remove offset and size members.
	* tree-ssa-operands.c (get_expr_operands): Update for
	get_indirect_ref_operands changes.
	(get_indirect_ref_operands): Call add_virtual_operand instead of
	add_stmt_operand.  Only recurse on base var if requested.
	(access_can_touch_variable): New function.
	(add_stmt_operand): Split virtual operand handling into ...
	(add_virtual_operand): Here.  Add offset, size, and for_clobber
	arguments.  Prune alias sets.
	(add_call_clobber_ops): Call add_virtual_operand.

From-SVN: r111120

1 files changed, 4 insertions, 1 deletions

diff --git a/gcc/tree.c b/gcc/tree.c
index d66e0c6..0a3d606 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -276,6 +276,8 @@ init_ttree (void)
   tree_contains_struct[NAME_MEMORY_TAG][TS_MEMORY_TAG] = 1;
   tree_contains_struct[TYPE_MEMORY_TAG][TS_MEMORY_TAG] = 1;
 
+  tree_contains_struct[STRUCT_FIELD_TAG][TS_STRUCT_FIELD_TAG] = 1;
+
   tree_contains_struct[VAR_DECL][TS_DECL_WITH_VIS] = 1;
   tree_contains_struct[FUNCTION_DECL][TS_DECL_WITH_VIS] = 1;
   tree_contains_struct[TYPE_DECL][TS_DECL_WITH_VIS] = 1;
@@ -335,8 +337,9 @@ tree_code_size (enum tree_code code)
 	    return sizeof (struct tree_function_decl);
 	  case NAME_MEMORY_TAG:
 	  case TYPE_MEMORY_TAG:
-	  case STRUCT_FIELD_TAG:
 	    return sizeof (struct tree_memory_tag);
+	  case STRUCT_FIELD_TAG:
+	    return sizeof (struct tree_struct_field_tag);
 	  default:
 	    return sizeof (struct tree_decl_non_common);
 	  }