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From: "steven at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/55006] [4.8 Regression] aermod.f90 is miscompiled with '-m64 -O2 -funroll-loops' after revision 192526
Date: Wed, 28 Nov 2012 00:18:00 -0000	[thread overview]
Message-ID: <bug-55006-4-ztbKwxhy2k@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-55006-4@http.gcc.gnu.org/bugzilla/>


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55006

--- Comment #6 from Steven Bosscher <steven at gcc dot gnu.org> 2012-11-28 00:17:40 UTC ---
Author: steven
Date: Wed Nov 28 00:17:34 2012
New Revision: 193876

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193876
Log:
    PR rtl-optimization/55006
    * loop-unroll.c (struct iv_to_split): Add new 'orig_var' member.
    (analyze_iv_to_split_insn): Record it.
    (maybe_strip_eq_note_for_split_iv): New function to remove REG_EQUAL
    notes that refer to IVs that are being split.
    (apply_opt_in_copies): Use maybe_strip_eq_note_for_split_iv.  Twice.
    Use FOR_BB_INSNS_SAFE.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/loop-unroll.c


  parent reply	other threads:[~2012-11-28  0:18 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-21 12:12 [Bug tree-optimization/55006] New: " dominiq at lps dot ens.fr
2012-10-21 12:24 ` [Bug tree-optimization/55006] " dominiq at lps dot ens.fr
2012-10-21 12:39 ` dominiq at lps dot ens.fr
2012-10-22  9:06 ` rguenth at gcc dot gnu.org
2012-10-29 19:25 ` izamyatin at gmail dot com
2012-11-08 12:07 ` dominiq at lps dot ens.fr
2012-11-18 23:11 ` dominiq at lps dot ens.fr
2012-11-19 21:22 ` [Bug rtl-optimization/55006] " steven at gcc dot gnu.org
2012-11-28  0:18 ` steven at gcc dot gnu.org [this message]
2012-12-03 15:59 ` rguenth at gcc dot gnu.org
2012-12-03 16:04 ` steven at gcc dot gnu.org
2012-12-05 11:54 ` krebbel at gcc dot gnu.org
2012-12-05 11:56 ` krebbel at gcc dot gnu.org
2012-12-05 11:58 ` krebbel at gcc dot gnu.org
2012-12-05 11:59 ` krebbel at gcc dot gnu.org
2012-12-05 12:24 ` steven at gcc dot gnu.org
2012-12-05 12:32 ` steven at gcc dot gnu.org
2012-12-05 12:55 ` krebbel at gcc dot gnu.org
2012-12-21 12:19 ` rguenth at gcc dot gnu.org

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