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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/90094] better handling of x == LONG_MIN on x86-64
Date: Wed, 14 Jun 2023 09:00:33 +0000	[thread overview]
Message-ID: <bug-90094-4-SJw2VSnfK5@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-90094-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90094

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
One argument against doing it during expansion is that if we need the large
constant for other purposes, loading it with movabsq and just doing comparison
is better, the overflow way also clobbers the register which is being compared.

      parent reply	other threads:[~2023-06-14  9:00 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-90094-4@http.gcc.gnu.org/bugzilla/>
2021-07-25  1:06 ` pinskia at gcc dot gnu.org
2023-06-14  6:11 ` eggert at cs dot ucla.edu
2023-06-14  8:58 ` jakub at gcc dot gnu.org
2023-06-14  9:00 ` jakub at gcc dot gnu.org [this message]

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