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From: "pthaugen at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/103743] PPC: Inefficient equality compare for large 64-bit constants having only 16-bit relevant bits in high part
Date: Thu, 16 Dec 2021 22:14:01 +0000 [thread overview]
Message-ID: <bug-103743-4-KjdR8PdeWl@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-103743-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103743
--- Comment #2 from pthaugen at gcc dot gnu.org ---
(In reply to Peter Bergner from comment #1)
> Pat, does the patch from Alan you're working to get committed help with this
> test case?
No, it just loads the constant slightly different:
li 9,1
rotldi 9,9,63
cmpd 0,3,9
next prev parent reply other threads:[~2021-12-16 22:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-16 6:46 [Bug target/103743] New: " jens.seifert at de dot ibm.com
2021-12-16 6:49 ` [Bug target/103743] " pinskia at gcc dot gnu.org
2021-12-16 15:06 ` bergner at gcc dot gnu.org
2021-12-16 22:14 ` pthaugen at gcc dot gnu.org [this message]
2022-03-15 2:06 ` guojiufu at gcc dot gnu.org
2022-03-15 7:32 ` guojiufu at gcc dot gnu.org
2022-03-16 9:48 ` guojiufu at gcc dot gnu.org
2022-05-16 1:59 ` guojiufu at gcc dot gnu.org
2022-12-20 3:59 ` cvs-commit at gcc dot gnu.org
2023-01-09 5:29 ` guojiufu at gcc dot gnu.org
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