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[Bug tree-optimization/36493] [4.3/4.4 Regression] vectorizer aliasing bug
- From: "irar at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Jun 2008 10:39:51 -0000
- Subject: [Bug tree-optimization/36493] [4.3/4.4 Regression] vectorizer aliasing bug
- References: <bug-36493-230@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from irar at gcc dot gnu dot org 2008-06-16 10:39 -------
Subject: Bug 36493
Author: irar
Date: Mon Jun 16 10:39:07 2008
New Revision: 136843
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=136843
Log:
PR tree-optimization/36493
* tree-vect-transform.c (vect_create_data_ref_ptr): Remove TYPE from
the arguments list. Use VECTYPE to create vector pointer.
(vectorizable_store): Fail if accesses through a pointer to vectype
do not alias the original memory reference operands.
Call vect_create_data_ref_ptr without the removed argument.
(vectorizable_load): Likewise.
(vect_setup_realignment): Call vect_create_data_ref_ptr without the
removed argument.
Added:
trunk/gcc/testsuite/gcc.dg/vect/pr36493.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-transform.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36493