public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "rth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/60438] [4.9 Regression] dwarf2cfi :2239 still assert,not the same cause as PR 59575
Date: Sun, 09 Mar 2014 00:03:00 -0000	[thread overview]
Message-ID: <bug-60438-4-vZoprIjCph@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-60438-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60438

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

--- Comment #17 from Richard Henderson <rth at gcc dot gnu.org> ---
The REG_ARGS_SIZE notes are a red-herring.

The bug is that 

(insn:TI 66 61 31 4 (set (mem:SI (pre_dec:SI (reg/f:SI 7 sp)) [0  S4 A8])
        (reg:SI 0 ax [orig:85 D.1918 ] [85])) z.c:21 66 {*pushsi2}
     (nil))

as noted above created by split2, is not processed by the dwarf2cfi
code at all, and so its stack adjustment is lost entirely.  Thus when
we remove its adjustment later, we wind up with the wrong answer and
that leads directly to the abort.


  parent reply	other threads:[~2014-03-09  0:03 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-06  6:54 [Bug debug/60438] New: " manjian2006 at gmail dot com
2014-03-06  6:56 ` [Bug debug/60438] " manjian2006 at gmail dot com
2014-03-06  6:59 ` manjian2006 at gmail dot com
2014-03-06  7:37 ` manjian2006 at gmail dot com
2014-03-07  8:53 ` manjian2006 at gmail dot com
2014-03-07  8:59 ` manjian2006 at gmail dot com
2014-03-07  9:24 ` manjian2006 at gmail dot com
2014-03-07  9:48 ` manjian2006 at gmail dot com
2014-03-07 10:09 ` manjian2006 at gmail dot com
2014-03-07 14:28 ` manjian2006 at gmail dot com
2014-03-07 18:08 ` manjian2006 at gmail dot com
2014-03-07 22:05 ` jakub at gcc dot gnu.org
2014-03-07 22:07 ` [Bug debug/60438] [4.9 Regression] " jakub at gcc dot gnu.org
2014-03-08  2:59 ` manjian2006 at gmail dot com
2014-03-08  6:33 ` manjian2006 at gmail dot com
2014-03-08  6:42 ` manjian2006 at gmail dot com
2014-03-08 10:04 ` manjian2006 at gmail dot com
2014-03-08 10:43 ` manjian2006 at gmail dot com
2014-03-09  0:03 ` rth at gcc dot gnu.org [this message]
2014-03-09  2:23 ` manjian2006 at gmail dot com
2014-03-09  4:10 ` rth at gcc dot gnu.org
2014-03-09  5:37 ` manjian2006 at gmail dot com
2014-03-09 10:23 ` manjian2006 at gmail dot com
2014-03-09 10:25 ` manjian2006 at gmail dot com
2014-03-09 10:29 ` manjian2006 at gmail dot com
2014-03-09 15:02 ` manjian2006 at gmail dot com
2014-03-10 10:18 ` jakub at gcc dot gnu.org
2014-03-10 11:04 ` manjian2006 at gmail dot com
2014-03-10 11:32 ` jakub at gcc dot gnu.org
2014-03-10 13:03 ` manjian2006 at gmail dot com
2014-03-10 19:23 ` rth at gcc dot gnu.org
2014-03-10 19:26 ` jakub at gcc dot gnu.org
2014-03-10 20:51 ` rth at gcc dot gnu.org
2014-03-11 15:12 ` jakub at gcc dot gnu.org
2014-03-12 17:25 ` rth at gcc dot gnu.org
2014-03-12 17:29 ` jakub at gcc dot gnu.org
2014-03-13  9:00 ` jakub at gcc dot gnu.org
2014-03-13 20:25 ` rth at gcc dot gnu.org
2014-03-13 20:56 ` jakub at gcc dot gnu.org
2014-03-18 13:08 ` bernd.edlinger at hotmail dot de
2014-03-18 13:16 ` dominiq at lps dot ens.fr
2014-03-18 15:10 ` manjian2006 at gmail dot com

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=bug-60438-4-vZoprIjCph@http.gcc.gnu.org/bugzilla/ \
    --to=gcc-bugzilla@gcc.gnu.org \
    --cc=gcc-bugs@gcc.gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).