From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 99DC13858415; Tue, 21 Dec 2021 03:02:18 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 99DC13858415
From: "guihaoc at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/103784] suboptimal code for returning bool value on
 target ppc
Date: Tue, 21 Dec 2021 03:02:18 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: normal
X-Bugzilla-Who: guihaoc at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-103784-4-NJ31QcyVMk@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-103784-4@http.gcc.gnu.org/bugzilla/>
References: <bug-103784-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Tue, 21 Dec 2021 03:02:18 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103784

--- Comment #4 from HaoChen Gui <guihaoc at gcc dot gnu.org> ---
output with "-fdump-tree-optimized=3D/dev/stdout"
;; Function foo (foo, funcdef_no=3D0, decl_uid=3D3317, cgraph_uid=3D1,
symbol_order=3D0)

Removing basic block 5
_Bool foo (int a, int b)
{
  _Bool _1;
  _Bool _5;

  <bb 2> [local count: 1073741824]:
  if (a_2(D) > 2)
    goto <bb 4>; [34.00%]
  else
    goto <bb 3>; [66.00%]

  <bb 3> [local count: 708669601]:
  _5 =3D b_3(D) <=3D 9;

  <bb 4> [local count: 1073741824]:
  # _1 =3D PHI <_5(3), 0(2)>
  return _1;

}=