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[PATCH PR70729] The second part of patch.

From: Yuri Rumyantsev <ysrumyan at gmail dot com>
To: gcc-patches <gcc-patches at gcc dot gnu dot org>, Richard Biener <richard dot guenther at gmail dot com>, Igor Zamyatin <izamyatin at gmail dot com>, ÐÐÑÑ ÐÐÐÐÐÐÑ <enkovich dot gnu at gmail dot com>
Date: Tue, 28 Jun 2016 18:50:37 +0300
Subject: [PATCH PR70729] The second part of patch.
Authentication-results: sourceware.org; auth=none

Hi All!

Here is the second part of patch to improve loop invariant code motion
for loop marked with pragma omp simd.

Bootstrapping and regression testing did not show any new failures.
Is it OK for trunk?

ChangeLog:
2016-06-28  Yuri Rumyantsev  <ysrumyan@gmail.com>

PR tree-optimization/70729
* tree-ssa-loop-im.c (ref_indep_loop_p_1): Consider memory reference as
independent in loops having positive safelen value.
* tree-vect-loop.c (vect_transform_loop): Clear-up safelen value since
it may be not valid after vectorization.

gcc/testsuite/ChangeLog
* g++.dg/vect/pr70729.cc: New test.

Attachment: patch.3
Description: Binary data

Follow-Ups:
- Re: [PATCH PR70729] The second part of patch.
  - From: Richard Biener
- Re: [PATCH PR70729] The second part of patch.
  - From: Thomas Schwinge

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