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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug target/67351] Missed optimisation on 64-bit field compared to 32-bit Date: Tue, 25 Aug 2015 16:37:00 -0000 [thread overview] Message-ID: <bug-67351-4-4DiqB7dXTl@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-67351-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67351 --- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Allan Jensen from comment #0) > Gcc will expand and detect field setting on 32-bit integers, but for some > reason miss the opportunity on 64-bit. The immediates for 64bit logic insns are limited to sign-extended 32bit values, so this probably limits combine to combine several insns into one. >From gcc-bugs-return-495629-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Aug 25 16:40:25 2015 Return-Path: <gcc-bugs-return-495629-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org> Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 25025 invoked by alias); 25 Aug 2015 16:40:25 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: <gcc-bugs.gcc.gnu.org> List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/> List-Post: <mailto:gcc-bugs@gcc.gnu.org> List-Help: <mailto:gcc-bugs-help@gcc.gnu.org> Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 24978 invoked by uid 48); 25 Aug 2015 16:40:17 -0000 From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/64544] ../../gcc-svn/gcc/cgraphunit.c:2183:1: internal compiler error: in check_probability, at basic-block.h:581 Date: Tue, 25 Aug 2015 16:40:00 -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: 5.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: major X-Bugzilla-Who: mpolacek at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: FIXED 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_status resolution Message-ID: <bug-64544-4-EUWFzPM8pA@http.gcc.gnu.org/bugzilla/> In-Reply-To: <bug-64544-4@http.gcc.gnu.org/bugzilla/> References: <bug-64544-4@http.gcc.gnu.org/bugzilla/> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-08/txt/msg01771.txt.bz2 Content-length: 508 https://gcc.gnu.org/bugzilla/show_bug.cgi?idd544 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Should be fixed. If not, please reopen and be sure to add a preprocessed source file.
next prev parent reply other threads:[~2015-08-25 16:37 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-08-25 15:38 [Bug middle-end/67351] New: " linux at carewolf dot com 2015-08-25 15:39 ` [Bug middle-end/67351] " linux at carewolf dot com 2015-08-25 16:37 ` ubizjak at gmail dot com [this message] 2015-08-26 6:57 ` [Bug target/67351] " rguenth at gcc dot gnu.org 2015-09-01 9:00 ` [Bug tree-optimization/67351] " hs.naveen2u at gmail dot com 2015-09-03 10:20 ` naveenh at gcc dot gnu.org 2015-09-17 11:13 ` linux at carewolf dot com 2015-09-17 11:45 ` ubizjak at gmail dot com
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