From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26235 invoked by alias); 18 Jan 2011 14:55:06 -0000 Received: (qmail 26195 invoked by uid 22791); 18 Jan 2011 14:55:04 -0000 X-SWARE-Spam-Status: No, hits=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 18 Jan 2011 14:54:59 +0000 From: "dberlin at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/26854] Inordinate compile times on large routines X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Keywords: compile-time-hog, memory-hog X-Bugzilla-Severity: normal X-Bugzilla-Who: dberlin at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Date: Tue, 18 Jan 2011 15:15:00 -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 X-SW-Source: 2011-01/txt/msg01802.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D26854 --- Comment #123 from Daniel Berlin 2011-01-18= 14:54:33 UTC --- On Tue, Jan 18, 2011 at 9:49 AM, hubicka at gcc dot gnu.org wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D26854 > > Jan Hubicka changed: > > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 What =C2=A0 =C2=A0|Removed =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |Added > -------------------------------------------------------------------------= --- > =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 CC| =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0|hubicka at gcc dot gnu.org > > --- Comment #122 from Jan Hubicka 2011-01-18= 14:48:32 UTC --- > oprofiling shows that 50% of parsing time is in decl_jump_unsafe that is C > frontend thingy to output some sort of warnings on gotos to VLAs. =C2=A0T= his can > probably be solved quite easilly. > > Later we get (at -O2 all.i) > 83417 =C2=A0 =C2=A017.0179 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0dominated_by_p > 75164 =C2=A0 =C2=A015.3342 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0bitmap_equal_p > 38134 =C2=A0 =C2=A0 7.7797 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0bitmap_set_bit > 26144 =C2=A0 =C2=A0 5.3336 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0bitmap_ior_into > 21031 =C2=A0 =C2=A0 4.2905 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0decl_jump_unsafe > 16142 =C2=A0 =C2=A0 3.2931 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0register_new_assert_for.isra.42 > 12713 =C2=A0 =C2=A0 2.5936 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0bitmap_elt_insert_after > 11136 =C2=A0 =C2=A0 2.2719 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0sbitmap_a_or_b > 10625 =C2=A0 =C2=A0 2.1676 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0et_splay > 10059 =C2=A0 =C2=A0 2.0521 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0walk_dominator_tree > 6775 =C2=A0 =C2=A0 =C2=A01.3822 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0dse_enter_block > 5952 =C2=A0 =C2=A0 =C2=A01.2143 =C2=A0cc1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0bitmap_bit_p This looks suspiciously like it's not using the DFS numbers