From: Jeff Law <jeffreyalaw@gmail.com>
To: Andrew Pinski <apinski@marvell.com>, gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] MATCH: Transform `(1 >> X) !=/== 0` into `X ==/!= 0`
Date: Tue, 5 Sep 2023 01:12:30 -0600 [thread overview]
Message-ID: <913b7359-30d6-4cee-895c-dbdff9454903@gmail.com> (raw)
In-Reply-To: <20230903162554.908044-1-apinski@marvell.com>
On 9/3/23 10:25, Andrew Pinski via Gcc-patches wrote:
> We currently have a pattern for handling `(C >> X) & D == 0`
> but if C is 1 and D is 1, the `& 1` might have been removed.
>
> gcc/ChangeLog:
>
> PR tree-optimization/105832
> * match.pd (`(1 >> X) != 0`): New pattern
OK
jeff
prev parent reply other threads:[~2023-09-05 7:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-03 16:25 Andrew Pinski
2023-09-05 7:12 ` Jeff Law [this message]
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