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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/46391] false dependencies are computed after vectorization (#2)
Date: Tue, 09 Nov 2010 13:19:00 -0000	[thread overview]
Message-ID: <bug-46391-4-iAV888QqlQ@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-46391-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46391

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-09 13:18:47 UTC ---
On x86_64 restrict information is there (-fdump-tree-optimized-alias):

<bb 5>:
  # PT = nonlocal { PARM_RESTRICT.0 } (restr)
  vect_p.27_71 = c_8(D) + prolog_loop_niters.16_27;
  # PT = nonlocal { PARM_RESTRICT.1 } (restr)
  vect_p.32_75 = d_5(D) + prolog_loop_niters.16_27;

<bb 6>:
  # ivtmp.52_46 = PHI <ivtmp.52_31(6), 0(5)>
  # ivtmp.55_47 = PHI <ivtmp.55_33(6), 0(5)>
  vect_var_.28_74 = MEM[base: vect_p.27_71, index: ivtmp.55_47, offset: 0B];
  MEM[base: vect_p.32_75, index: ivtmp.55_47, offset: 0B] = vect_var_.28_74;
  ivtmp.52_31 = ivtmp.52_46 + 1;
  ivtmp.55_33 = ivtmp.55_47 + 16;
  if (ivtmp.52_31 < bnd.20_49)
    goto <bb 6>;
  else
    goto <bb 7>;


  reply	other threads:[~2010-11-09 13:19 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-09 12:35 [Bug rtl-optimization/46391] New: " roy.1rosen at gmail dot com
2010-11-09 13:19 ` rguenth at gcc dot gnu.org [this message]
2010-11-09 13:48 ` [Bug rtl-optimization/46391] " roy.1rosen at gmail dot com
2010-11-11  8:04 ` roy.1rosen at gmail dot com
2021-08-16  4:29 ` pinskia at gcc dot gnu.org
2021-09-08 11:04 ` rguenth at gcc dot gnu.org

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