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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/108933] [11/12/13/14 Regression] Missing rev16 detection
Date: Mon, 29 Jan 2024 15:58:33 +0000 [thread overview]
Message-ID: <bug-108933-4-0iuPPXHqDT@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-108933-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108933
--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Earnshaw <rearnsha@gcc.gnu.org>:
https://gcc.gnu.org/g:bad991a1c5960e90c4686a9362a1258ef29e195b
commit r14-8499-gbad991a1c5960e90c4686a9362a1258ef29e195b
Author: Matthieu Longo <matthieu.longo@arm.com>
Date: Mon Jan 29 15:54:35 2024 +0000
arm: Add pattern for bswap + rotate -> rev16 [Bug 108933]
The rev16 pattern was not recognised anymore as a change in the bswap
tree pass was introducing a new GIMPLE form, not recognized by the
assembly final transformation pass.
Also, fix the output patterns for arm_rev16si_alt[12] to correctly
handle the instructions being made conditional.
More details in the PR.
gcc/ChangeLog:
PR target/108933
* config/arm/arm.md (arm_rev16si2): Convert to define_insn.
Correct generated RTL.
(arm_rev16si2_alt1): Correctly handle conditional execution.
(arm_rev16si2_alt2): Likewise.
gcc/testsuite/ChangeLog:
PR target/108933
* gcc.target/arm/rev16.c: Moved to...
* gcc.target/arm/rev16_1.c: ...here.
* gcc.target/arm/rev16_2.c: New test to check that rev16 is
emitted.
next prev parent reply other threads:[~2024-01-29 15:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-25 19:50 [Bug target/108933] New: [10/11/12/13 Regression] Missing bswap detection pinskia at gcc dot gnu.org
2023-02-25 19:51 ` [Bug target/108933] " pinskia at gcc dot gnu.org
2023-03-10 17:54 ` pinskia at gcc dot gnu.org
2023-03-15 11:44 ` jakub at gcc dot gnu.org
2023-03-15 22:09 ` [Bug target/108933] [10/11/12/13 Regression] Missing rev16 detection pinskia at gcc dot gnu.org
2023-03-15 22:10 ` pinskia at gcc dot gnu.org
2023-03-27 10:56 ` rguenth at gcc dot gnu.org
2023-07-07 10:44 ` [Bug target/108933] [11/12/13/14 " rguenth at gcc dot gnu.org
2024-01-29 15:58 ` cvs-commit at gcc dot gnu.org [this message]
2024-01-29 16:01 ` [Bug target/108933] [11/12/13 " rearnsha at gcc dot gnu.org
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