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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/111696] [11/12/13/14 Regression] Spurious -Wstringop-overflow
Date: Wed, 04 Oct 2023 22:50:21 +0000	[thread overview]
Message-ID: <bug-111696-4-rDSvn2z4rA@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-111696-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111696

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The vectorizer has not much to do with the warning issue except for the IR
change into FRE.

Before fre5:
  _11 = &last_14(D)->s;
  memcpy (_11, &cur.s, 24);


After:
  vectp.7_19 = &accum_13(D)->sD.4831.aD.4827[0];
...
  vectp.10_9 = &last_14(D)->sD.4831.aD.4827[0];
...
  # .MEM_26 = VDEF <.MEM_12(D)>
  MEM <vector(2) long unsigned intD.17> [(long unsigned intD.17 *)vectp.7_19] =
vect__5.13_24;
  # .MEM_17 = VDEF <.MEM_26>
  MEM <unsigned charD.31[24]> [(charD.11 * {ref-all})vectp.10_9] = MEM
<unsigned charD.31[24]> [(charD.11 * {ref-all})&curD.4832];

  reply	other threads:[~2023-10-04 22:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-04 18:03 [Bug middle-end/111696] New: " stilor at att dot net
2023-10-04 22:50 ` pinskia at gcc dot gnu.org [this message]
2023-10-04 22:55 ` [Bug middle-end/111696] " pinskia at gcc dot gnu.org
2023-10-05  7:38 ` rguenth at gcc dot gnu.org
2024-03-07 21:06 ` law at gcc dot gnu.org

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