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Re: [PATCH GCC][3/5]Move pass ivcanon upward in compilation process
- From: Richard Biener <richard dot guenther at gmail dot com>
- To: Bin Cheng <Bin dot Cheng at arm dot com>
- Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, nd <nd at arm dot com>
- Date: Wed, 7 Jun 2017 10:36:05 +0200
- Subject: Re: [PATCH GCC][3/5]Move pass ivcanon upward in compilation process
- Authentication-results: sourceware.org; auth=none
- References: <VI1PR0802MB2176CD399891B40E036D1C1EE7F70@VI1PR0802MB2176.eurprd08.prod.outlook.com>
On Fri, Jun 2, 2017 at 1:51 PM, Bin Cheng <Bin.Cheng@arm.com> wrote:
> Hi,
> This patch moves pass ivcanon before loop distribution. Pass loop split could create
> loops with limited niters. Such loop should be unrolled before loop distribution (or graphite),
> rather than after.
>
> Bootstrap and test at O2/O3 on x86_64 and AArch64. is it OK?
Ok.
Richard.
> Thanks,
> bin
> 2017-05-31 Bin Cheng <bin.cheng@arm.com>
>
> * passes.def (pass_iv_canon): Move before pass_loop_distribution.