From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14112 invoked by alias); 2 Oct 2013 10:26:54 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 14065 invoked by uid 48); 2 Oct 2013 10:26:50 -0000 From: "manu at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/58575] gcc should compile firefox code faster. Date: Wed, 02 Oct 2013 10:26:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: manu at gcc dot gnu.org X-Bugzilla-Status: RESOLVED 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 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 X-SW-Source: 2013-10/txt/msg00099.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D58575 Manuel L=C3=B3pez-Ib=C3=A1=C3=B1ez changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |manu at gcc dot gnu.org --- Comment #2 from Manuel L=C3=B3pez-Ib=C3=A1=C3=B1ez --- That GCC could be much faster is well-known but how to make it so is less c= lear and there is simply not enough people to do the work required. Currently th= ere is as many people working just on Clang than on the whole GCC (including all languages, middle-end and backends). Dimitrios Apostolou did some nice work on benchmarking, but his actual patc= hes did not bring impressive improvements: http://gcc.gnu.org/wiki/OptimisingGCC I don't know how much of this work ended up in GCC (if any). There are many ideas on what could speed-up C++ parsing: http://gcc.gnu.org/wiki/Speedup_areas#C.2B-.2B-_improvements BTW, reducing memory allocation (or using smarter data structures) is likel= y to bring significant improvements: http://gcc.gnu.org/wiki/Speedup_areas#Some_general_thoughts_on_memory_usage But at the end, someone needs to come up with very detailed benchmark data = to identify the real compile-time hogs and patches to address them. >>From gcc-bugs-return-430956-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Oct 02 10:44:28 2013 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 736 invoked by alias); 2 Oct 2013 10:44:28 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 687 invoked by uid 55); 2 Oct 2013 10:44:26 -0000 From: "paolo at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/58565] [c++11] ICE with label in statement expression Date: Wed, 02 Oct 2013 10:44:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: ice-on-invalid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: paolo at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: paolo.carlini at oracle dot com X-Bugzilla-Target-Milestone: 4.9.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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: 2013-10/txt/msg00100.txt.bz2 Content-length: 683 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58565 --- Comment #3 from paolo at gcc dot gnu.org --- Author: paolo Date: Wed Oct 2 10:44:23 2013 New Revision: 203109 URL: http://gcc.gnu.org/viewcvs?rev=203109&root=gcc&view=rev Log: /cp 2013-10-02 Paolo Carlini PR c++/58565 * semantics.c (potential_constant_expression_1): Handle LABEL_EXPR. /testsuite 2013-10-02 Paolo Carlini PR c++/58565 * g++.dg/parse/crash64.C: New. Added: trunk/gcc/testsuite/g++.dg/parse/crash64.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/semantics.c trunk/gcc/testsuite/ChangeLog