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From: "liuhongt at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/114591] [12/13/14 Regression] register allocators introduce an extra load operation since gcc-12
Date: Thu, 11 Apr 2024 07:37:52 +0000 [thread overview]
Message-ID: <bug-114591-4-n0yIYxk3Pc@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-114591-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114591
--- Comment #16 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
>
> 4952 /* See if a MEM has already been loaded with a widening operation;
> 4953 if it has, we can use a subreg of that. Many CISC machines
> 4954 also have such operations, but this is only likely to be
> 4955 beneficial on these machines. */
Oh, it's pre_reload cse_insn, not postreload gcse
next prev parent reply other threads:[~2024-04-11 7:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-04 18:57 [Bug rtl-optimization/114591] New: rtl-reload " absoler at smail dot nju.edu.cn
2024-04-04 19:03 ` [Bug target/114591] " pinskia at gcc dot gnu.org
2024-04-04 19:07 ` [Bug target/114591] [12/13/14 Regression] " pinskia at gcc dot gnu.org
2024-04-05 2:32 ` [Bug target/114591] [12/13/14 Regression] register allocators " law at gcc dot gnu.org
2024-04-08 15:02 ` jakub at gcc dot gnu.org
2024-04-10 7:51 ` ubizjak at gmail dot com
2024-04-10 8:17 ` liuhongt at gcc dot gnu.org
2024-04-10 8:30 ` liuhongt at gcc dot gnu.org
2024-04-10 8:36 ` ubizjak at gmail dot com
2024-04-10 8:40 ` ubizjak at gmail dot com
2024-04-10 8:47 ` ubizjak at gmail dot com
2024-04-10 8:52 ` liuhongt at gcc dot gnu.org
2024-04-10 9:07 ` ubizjak at gmail dot com
2024-04-10 9:12 ` liuhongt at gcc dot gnu.org
2024-04-11 6:33 ` liuhongt at gcc dot gnu.org
2024-04-11 6:54 ` ubizjak at gmail dot com
2024-04-11 7:08 ` pinskia at gcc dot gnu.org
2024-04-11 7:28 ` liuhongt at gcc dot gnu.org
2024-04-11 7:37 ` liuhongt at gcc dot gnu.org [this message]
2024-06-20 9:15 ` [Bug target/114591] [12/13/14/15 " rguenth at gcc dot gnu.org
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