From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id A67D73858D20; Tue, 29 Nov 2022 19:19:51 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A67D73858D20 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1669749591; bh=IPqrEh5+6F3Rgv4AwSBolqHNl6a3wZkLta+MY07m5rc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=UFP1OaFYCe/+YRlXqfF0vft06tqPiQ0hvYRTIpSnoW08v2N6QnZGA77XZ5LT0PbSQ vVF+He4kXDirOXMO+DagAMYCdyMt+V0omEW9IRXlNwSDWTZbuIcPIgjG1DRU7ktaV3 QzTd0Q5vGEM9FAuphGvDYNVgCvryhHPuf0oYbz+s= From: "amonakov at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/107905] 2x slowdown versus CLANG and ICL Date: Tue, 29 Nov 2022 19:19:50 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 11.3.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: amonakov 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: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: keywords cc 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=3D107905 Alexander Monakov changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords|ra | CC| |amonakov at gcc dot gnu.org --- Comment #3 from Alexander Monakov --- LLVM does a better job at code layout, and massively wins on the amount of executed branches (in particular unconditional jumps). With -fdisable-rtl-b= bro gcc achieves a similar performance.=