From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 015623858C83; Wed, 19 Apr 2023 15:58:50 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 015623858C83 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1681919931; bh=d+HqE12fIH1f9F9eATuqViM5WIDubLvC81oBFD49DKo=; h=From:To:Subject:Date:In-Reply-To:References:From; b=yribM3ScTFNu/7UggQL1e7ZRA/wfYgYaew41ZaXyKZ6vtVEOawqfFBpNUBQqjFg2E DzSJYOcZpWb+Mq94U7pkkQcNxaNiOlAV8rTsFs2FyMG1+fOkA41q/zF88Xu9lbijwg uunFWX+jAho03hyseWzBMU/4ZKVBspI9lDRQt+VY= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/109555] memcmp with string literals cause branchy code maybe could use branchless? Date: Wed, 19 Apr 2023 15:58:50 +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: 13.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: enhancement X-Bugzilla-Who: pinskia 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: bug_severity short_desc 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=3D109555 Andrew Pinski changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |enhancement Summary|suboptimal code for |memcmp with string literals |comparing strings with |cause branchy code maybe |string literals |could use branchless?=