public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/45970] tree DSE misses many obvious dead stores
Date: Wed, 13 Oct 2010 13:04:00 -0000	[thread overview]
Message-ID: <20101013130400.29CpXcUJ4GY30x4QyGs_BwqBtwRHutQ7DjAlYSexQ_s@z> (raw)
In-Reply-To: <bug-45970-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45970

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-10-13 13:03:37 UTC ---
Author: rguenth
Date: Wed Oct 13 13:03:31 2010
New Revision: 165422

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=165422
Log:
2010-10-13  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/45970
    * tree-ssa-alias.h (stmt_kills_ref_p): Declare.
    * tree-ssa-alias.c (stmt_kills_ref_p_1): New function.
    (stmt_kills_ref_p): Likewise.
    * tree-ssa-dse.c (dse_optimize_stmt): Use it.

    * gcc.dg/tree-ssa/ssa-dse-13.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-13.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-alias.c
    trunk/gcc/tree-ssa-alias.h
    trunk/gcc/tree-ssa-dse.c


      parent reply	other threads:[~2010-10-13 13:04 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-11 14:40 [Bug tree-optimization/45970] New: " jakub at gcc dot gnu.org
2010-10-11 14:48 ` [Bug tree-optimization/45970] " rguenth at gcc dot gnu.org
2010-10-13 13:04 ` rguenth at gcc dot gnu.org
2010-10-13 13:04 ` rguenth at gcc dot gnu.org [this message]

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=20101013130400.29CpXcUJ4GY30x4QyGs_BwqBtwRHutQ7DjAlYSexQ_s@z \
    --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).