From: Jakub Jelinek <jakub@redhat.com>
To: Richard Biener <rguenther@suse.de>
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] tree-optimization/108482 - remove stray .LOOP_DIST_ALIAS calls
Date: Mon, 23 Jan 2023 11:20:52 +0100 [thread overview]
Message-ID: <Y85fhDhMsPe4GO20@tucnak> (raw)
In-Reply-To: <20230123100943.6C675134F5@imap2.suse-dmz.suse.de>
On Mon, Jan 23, 2023 at 11:09:43AM +0100, Richard Biener wrote:
> The following deals with .LOOP_DIST_ALIAS surviving vectorization
> because any of the loops involved were elided between loop distribution
> and vectorization. As opposed to .LOOP_VECTORIZED which exists only
> between if-conversion and vectorization with no intermediate passes
> this is more difficult to deal with in advance and thus cleaning
> up after vectorization looks better. There's the unconditional
> vector lowering pass which looks like a good place for this (for
> SIMD uid we have pass_simduid_cleanup).
>
> Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.
>
> OK?
I admit I didn't know something like LOOP_DIST_ALIAS even exist until
today.
Anyway, I wonder if there is still time to clean up during/after
veclower21.
I see fold_loop_internal_call propagates the return value to immediate
uses and cfg_changed means we'll clean up the cfg, is that enough?
Jakub
next prev parent reply other threads:[~2023-01-23 10:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-23 10:09 Richard Biener
2023-01-23 10:20 ` Jakub Jelinek [this message]
2023-01-23 10:28 ` Richard Biener
2023-01-23 10:29 ` Jakub Jelinek
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