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[gomp4 simd, RFC] Simple fix to override vectorization cost estimation.

From: Yuri Rumyantsev <ysrumyan at gmail dot com>
To: gcc-patches <gcc-patches at gcc dot gnu dot org>, Jakub Jelinek <jakub at redhat dot com>, Igor Zamyatin <izamyatin at gmail dot com>, Areg Melik-Adamyan <areg dot melikadamyan at gmail dot com>
Date: Thu, 31 Oct 2013 19:02:28 +0400
Subject: [gomp4 simd, RFC] Simple fix to override vectorization cost estimation.
Authentication-results: sourceware.org; auth=none

Hi All,

Here is a simple fix which allows to vectorize loop marked with
'pragma omp simd' even if cost model tells us that vectorization is
not profitable.
I checked that on simple test-case is works as expected.

Is it Ok for trunk?

ChangeLog:

2013-10-31  Yuri Rumyantsev  <ysrumyan@gmail.com>

* tree-vect-loop.c (vect_estimate_min_profitable_iters): Override
cost estimation for loops marked as vectorizable.

Attachment: patch
Description: Binary data

Follow-Ups:
- Re: [gomp4 simd, RFC] Simple fix to override vectorization cost estimation.
  - From: Jakub Jelinek

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