From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 1E08B3858CDB; Fri, 1 Dec 2023 10:38:04 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1E08B3858CDB DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1701427084; bh=tNwL4U5lgm/CeP2j36Eq2/9LxerQBAq2AfIHO0O3fJ4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Ez+VPEevGspj9D2rT8FStZsMP/hLO2HFtymfNG1KLL1IpBNAUrc+Woc3k1MMLGHBB UMrSEimf4r+6TllqcdMS1TsJ1BSTOaJbxZsJdAmdTcZBERYAOpFodIIih1AoycCmYF QsqIql7GCM3T9BmQv0xAQn5G+BuNLrbAm2DcwAHw= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug gcov-profile/112806] Profile-Guided Optimization (PGO) policy regarding explicit user optimization hint behavior Date: Fri, 01 Dec 2023 10:38:03 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: gcov-profile X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: documentation X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth 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: cc version 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=3D112806 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hubicka at gcc dot gnu.org Version|unknown |14.0 --- Comment #4 from Richard Biener --- I think it depends on whether the code was executed at all during training dependent on -fprofile-partial-training which does regular profile guessing for untrained parts of the program. In general the situation is complicated and it's difficult to document behavior with a short description.=