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Re: [PATCH, ifcvt] Check size cost in noce_try_store_flag_mask

From: Jeff Law <law at redhat dot com>
To: Zhenqiang Chen <zhenqiang dot chen at arm dot com>, Andrew Pinski <pinskia at gmail dot com>, Matthew Fortune <Matthew dot Fortune at imgtec dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Fri, 31 Oct 2014 11:25:33 -0600
Subject: Re: [PATCH, ifcvt] Check size cost in noce_try_store_flag_mask
Authentication-results: sourceware.org; auth=none
References: <000001cff4d4$29ff8750$7dfe95f0$ at arm dot com>

On 10/31/14 00:30, Zhenqiang Chen wrote:

Thank you all for the comments. Patch is updated.

Bootstrap and no make check regression on X86-64.
No make check regression with Cortex-M0 qemu.
No performance changes for coremark, dhrystone, spec2000 and spec2006 on
X86-64 and Cortex-A15.

For CSiBE, ARM Cortex-M0 result is a little better. A little regression for
MIPS (less than 0.01%).

Given Matthew's follow-up indicting he was comfortable with the patchas-is and the MIPS folks will follow-up on their costing models, thispatch is fine.


jeff

References:
- RE: [PATCH, ifcvt] Check size cost in noce_try_store_flag_mask
  - From: Zhenqiang Chen

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