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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111120 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 9 insertions, 0 deletions

diff --git a/gcc/print-tree.c b/gcc/print-tree.c
index dad7e59e002..02e5c7b9c61 100644
--- a/gcc/print-tree.c
+++ b/gcc/print-tree.c
@@ -510,6 +510,15 @@ print_node (FILE *file, const char *prefix, tree node, int indent)
 	  && DECL_HAS_VALUE_EXPR_P (node))
 	print_node (file, "value-expr", DECL_VALUE_EXPR (node), indent + 4);
 
+      if (TREE_CODE (node) == STRUCT_FIELD_TAG)
+	{
+	  fprintf (file, " sft size " HOST_WIDE_INT_PRINT_DEC, 
+		   SFT_SIZE (node));
+	  fprintf (file, " sft offset " HOST_WIDE_INT_PRINT_DEC,
+		   SFT_OFFSET (node));
+	  print_node_brief (file, "parent var", SFT_PARENT_VAR (node), 
+			    indent + 4);
+	}
       /* Print the decl chain only if decl is at second level.  */
       if (indent == 4)
 	print_node (file, "chain", TREE_CHAIN (node), indent + 4);