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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/110206] [14 Regression] wrong code with -Os -march=cascadelake
Date: Sun, 11 Jun 2023 16:39:36 +0000	[thread overview]
Message-ID: <bug-110206-4-fxjzsB08Lv@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-110206-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110206

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
There is a difference at the gimple level even:
trunk:
  _3 = { 204, 204, 204, 204 } >> u_7(D);

GCC 13.1:
  _15 = BIT_FIELD_REF <u_7(D), 8, 0>;
  _16 = 204 >> _15;
  _17 = BIT_FIELD_REF <u_7(D), 8, 8>;
  _18 = 204 >> _17;
  _19 = BIT_FIELD_REF <u_7(D), 8, 16>;
  _20 = 204 >> _19;
  _21 = BIT_FIELD_REF <u_7(D), 8, 24>;
  _22 = 204 >> _21;
  _3 = {_16, _18, _20, _22};

  parent reply	other threads:[~2023-06-11 16:39 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-11 11:27 [Bug target/110206] New: " zsojka at seznam dot cz
2023-06-11 16:24 ` [Bug target/110206] " pinskia at gcc dot gnu.org
2023-06-11 16:39 ` pinskia at gcc dot gnu.org [this message]
2023-06-11 17:37 ` [Bug target/110206] [14 Regression] wrong code with -Os -march=cascadelake since r14-1246 jakub at gcc dot gnu.org
2023-06-12  8:22 ` rguenth at gcc dot gnu.org
2023-06-12  8:55 ` ubizjak at gmail dot com
2023-06-12  9:09 ` ubizjak at gmail dot com
2023-06-12  9:11 ` [Bug rtl-optimization/110206] " ubizjak at gmail dot com
2023-06-12  9:15 ` ubizjak at gmail dot com
2023-06-12  9:18 ` ubizjak at gmail dot com
2023-07-08 14:07 ` ubizjak at gmail dot com
2023-07-08 16:56 ` ubizjak at gmail dot com
2023-07-08 17:36 ` ubizjak at gmail dot com
2023-07-09  8:54 ` ubizjak at gmail dot com
2023-07-10 11:54 ` rguenth at gcc dot gnu.org
2023-07-10 12:33 ` ubizjak at gmail dot com
2023-07-10 12:37 ` ubizjak at gmail dot com
2023-07-13 17:51 ` ubizjak at gmail dot com
2023-07-14  6:26 ` ubizjak at gmail dot com
2023-07-14 15:17 ` cvs-commit at gcc dot gnu.org
2023-07-14 20:03 ` cvs-commit at gcc dot gnu.org
2023-07-14 22:38 ` cvs-commit at gcc dot gnu.org
2023-07-14 22:39 ` ubizjak at gmail dot com

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