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[Bug tree-optimization/80170] SLP vectorization creates aligned access
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 27 Mar 2017 08:08:21 +0000
- Subject: [Bug tree-optimization/80170] SLP vectorization creates aligned access
- Auto-submitted: auto-generated
- References: <bug-80170-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80170
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Mar 27 08:07:49 2017
New Revision: 246491
URL: https://gcc.gnu.org/viewcvs?rev=246491&root=gcc&view=rev
Log:
2017-03-27 Richard Biener <rguenther@suse.de>
PR tree-optimization/80170
* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Make
sure DR/SCEV didnt fold in constants we do not see when looking
at the reference base alignment.
* gcc.dg/pr80170.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/pr80170.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vect-data-refs.c