From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id C33D63858C50; Fri, 26 Apr 2024 14:30:34 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C33D63858C50 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1714141834; bh=+llswkLJ3l28Z+srMkU7OFkbUeEXCHnlGgbQo7wikI8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=ZAHmtghwIO846BF9X9s39bBqZbM+14rouXlvR9Btmb6uEgiaQvu7NW+RnSgBpbApq A6a7Je5ndvsEibywb8p46gYIp646wmKSiFSxAjD7ZZ6B/tQJqkGg1bcxwd+wZmrcZy FuuMj3j2MaCT4yMs+dk2JA3GCDMK0NAoVC5ciR48= From: "tnfchris at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/114860] [14/15 regression] [aarch64] 511.povray regresses by ~5.5% with -O3 -flto -march=native -mcpu=neoverse-v2 since r14-10014-ga2f4be3dae04fa Date: Fri, 26 Apr 2024 14:30:34 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: tnfchris at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 14.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114860 --- Comment #1 from Tamar Christina --- Hmm I Am unable to reproduce this with -O3 - flto -mcpu=3Dneoverse-v2 on a neoverse-v2 machine. Is any other option required? Also that code was new in gcc 14 and was partially reverted due to register allocation issue. So if there is a performance difference it's a miss optimization and not a regression=