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[Bug tree-optimization/38301] vectorization breaks type-based aliasing rules
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Jan 2009 11:07:57 -0000
- Subject: [Bug tree-optimization/38301] vectorization breaks type-based aliasing rules
- References: <bug-38301-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from rguenth at gcc dot gnu dot org 2009-01-07 11:07 -------
Subject: Bug 38301
Author: rguenth
Date: Wed Jan 7 11:07:46 2009
New Revision: 143153
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143153
Log:
2009-01-07 Richard Guenther <rguenther@suse.de>
PR tree-optimization/38301
* alias.c (get_deref_alias_set): New function split out from ...
(get_alias_set): ... here.
* alias.h (get_deref_alias_set): Declare.
* tree-vect-transform.c (vect_create_data_ref_ptr): Remove unused
type parameter. Remove restrict pointer handling. Create a
ref-all pointer in case type-based alias sets do not conflict.
(vectorizable_store): Re-instantiate TBAA assert.
(vectorizable_load): Likewise.
Modified:
branches/alias-improvements/gcc/ChangeLog.alias
branches/alias-improvements/gcc/alias.c
branches/alias-improvements/gcc/alias.h
branches/alias-improvements/gcc/tree-vect-transform.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38301