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[PATCH] Do not walk BINFOs in record_component_aliases
- From: Richard Biener <rguenther at suse dot de>
- To: gcc-patches at gcc dot gnu dot org
- Date: Tue, 15 Apr 2014 11:10:00 +0200 (CEST)
- Subject: [PATCH] Do not walk BINFOs in record_component_aliases
- Authentication-results: sourceware.org; auth=none
As discussed last year.
Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.
Richard.
2014-04-15 Richard Biener <rguenther@suse.de>
* alias.c (record_component_aliases): Do not walk BINFOs.
Index: gcc/alias.c
===================================================================
--- gcc/alias.c (revision 209405)
+++ gcc/alias.c (working copy)
@@ -995,17 +995,6 @@ record_component_aliases (tree type)
case RECORD_TYPE:
case UNION_TYPE:
case QUAL_UNION_TYPE:
- /* Recursively record aliases for the base classes, if there are any. */
- if (TYPE_BINFO (type))
- {
- int i;
- tree binfo, base_binfo;
-
- for (binfo = TYPE_BINFO (type), i = 0;
- BINFO_BASE_ITERATE (binfo, i, base_binfo); i++)
- record_alias_subset (superset,
- get_alias_set (BINFO_TYPE (base_binfo)));
- }
for (field = TYPE_FIELDS (type); field != 0; field = DECL_CHAIN (field))
if (TREE_CODE (field) == FIELD_DECL && !DECL_NONADDRESSABLE_P (field))
record_alias_subset (superset, get_alias_set (TREE_TYPE (field)));