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From: Segher Boessenkool <>
To: Hongyu Wang <>
Subject: Re: [PATCH] rs6000: Adjust loop_unroll_adjust to match middle-end change [PR 107692]
Date: Fri, 18 Nov 2022 08:46:00 -0600	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

[ Please cc: me and Ke Wen on rs6000 patches ]

On Thu, Nov 17, 2022 at 07:54:29AM +0800, Hongyu Wang wrote:
> r13-3950-g071e428c24ee8c enables O2 small loop unrolling, but it breaks
> -fno-unroll-loops for rs6000 with loop_unroll_adjust hook. Adjust the
> option handling and target hook accordingly.


This is wrong.  -munroll-only-small-loops does not enable loop
unrolling; doing that with a machine flag is completely unmaintainable,
also for people using different targets.

Something in your patch was wrong, please fix that (or revert the
patch).  You should not have to touch config/rs6000/ at all.


  reply	other threads:[~2022-11-18 14:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-16 23:54 Hongyu Wang
2022-11-18 14:46 ` Segher Boessenkool [this message]
2022-11-22  9:00   ` Richard Biener
2022-11-23  1:53     ` Hongyu Wang
2022-11-23 20:02       ` Richard Biener

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