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Re: [PATCH GCC8][32/33]Save niter check for vect peeling if loop versioning is required
- 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: Thu, 11 May 2017 13:06:02 +0200
- Subject: Re: [PATCH GCC8][32/33]Save niter check for vect peeling if loop versioning is required
- Authentication-results: sourceware.org; auth=none
- References: <VI1PR0802MB21767511F259C08E5E23F7A2E7190@VI1PR0802MB2176.eurprd08.prod.outlook.com>
On Tue, Apr 18, 2017 at 12:54 PM, Bin Cheng <Bin.Cheng@arm.com> wrote:
> Hi,
> When loop versioning is required in vectorization, we can merge niter check for vect
> peeling with the check for loop versioning, thus save one check/branch for vectorized
> loop.
> Is it OK?
Ok.
Thanks,
Richard.
> Thanks,
> bin
> 2017-04-11 Bin Cheng <bin.cheng@arm.com>
>
> * tree-vect-loop-manip.c (vect_do_peeling): Don't skip vector loop
> if versioning is required.
> * tree-vect-loop.c (vect_analyze_loop_2): Merge niter check for loop
> peeling with the check for versioning.