From 128aaeedf407def236eefa58efa18327e81b72eb Mon Sep 17 00:00:00 2001
From: Richard Biener <rguenth@gcc.gnu.org>
Date: Tue, 7 Dec 2010 16:35:24 +0000
Subject: [PATCH] tree-vect-data-refs.c (vect_create_addr_base_for_vector_ref):
Reset alignment information.
2010-12-07 Richard Guenther <rguenther@suse.de>
* tree-vect-data-refs.c (vect_create_addr_base_for_vector_ref):
Reset alignment information.
(bump_vector_ptr): Likewise.
From-SVN: r167556
---
gcc/tree-vect-data-refs.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c
index 2c92c37bcce5..9a94df4b7f74 100644
--- a/gcc/tree-vect-data-refs.c
+++ b/gcc/tree-vect-data-refs.c
@@ -2918,7 +2918,14 @@ vect_create_addr_base_for_vector_ref (gimple stmt,
if (DR_PTR_INFO (dr)
&& TREE_CODE (vec_stmt) == SSA_NAME)
- duplicate_ssa_name_ptr_info (vec_stmt, DR_PTR_INFO (dr));
+ {
+ duplicate_ssa_name_ptr_info (vec_stmt, DR_PTR_INFO (dr));
+ if (offset)
+ {
+ SSA_NAME_PTR_INFO (vec_stmt)->align = 1;
+ SSA_NAME_PTR_INFO (vec_stmt)->misalign = 0;
+ }
+ }
if (vect_print_dump_info (REPORT_DETAILS))
{
@@ -3308,7 +3315,11 @@ bump_vector_ptr (tree dataref_ptr, gimple ptr_incr, gimple_stmt_iterator *gsi,
/* Copy the points-to information if it exists. */
if (DR_PTR_INFO (dr))
- duplicate_ssa_name_ptr_info (new_dataref_ptr, DR_PTR_INFO (dr));
+ {
+ duplicate_ssa_name_ptr_info (new_dataref_ptr, DR_PTR_INFO (dr));
+ SSA_NAME_PTR_INFO (new_dataref_ptr)->align = 1;
+ SSA_NAME_PTR_INFO (new_dataref_ptr)->misalign = 0;
+ }
if (!ptr_incr)
return new_dataref_ptr;
--
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