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 83BDD3858C66; Mon,  8 May 2023 16:03:56 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 83BDD3858C66
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1683561836;
	bh=mz6wqEbYPKQk/KOnhlrL9fPcxFRiKbZKCXmyzIsETbI=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=tNxLbZzQAJCo7rczRGkREAMRaFf9FR+O6TSSBEf3zvchOPZ+7j7ddsHLndDBguV0H
	 8e2A+JzCeYvcVVkYJXM1y7PkKOXnzZNT2EcK7qop2Jrht9M9w5h5CkC84N510zSxAc
	 nE7d2Nx+3MmBnZReGzW1Sytn23yu3Fhj7KDOdqd8=
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109771] Unnecessary pblendw for vectorized or
Date: Mon, 08 May 2023 16:03:56 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 13.1.0
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia 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: component
Message-ID: <bug-109771-4-q8Vky2POlT@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109771-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109771-4@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
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109771

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|rtl-optimization            |tree-optimization

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---

  vect_y_w_0_5.51_14 =3D MEM <vector(2) long unsigned int> [(void *)t_4(D)];
  vect_y_w_0_5.52_10 =3D MEM <vector(2) long unsigned int> [(void *)t_4(D) +
16B];
  vect_y_w_0_5.54_24 =3D MEM <vector(2) long unsigned int> [(void *)t_4(D) +
48B];
  vect_y_w_0_5.55_6 =3D VEC_PERM_EXPR <vect_y_w_0_5.52_10, vect_y_w_0_5.54_=
24, {
0, 3 }>;
  vect_x_w_0_36.60_44 =3D MEM <vector(2) long unsigned int> [(void *)t_4(D)=
 +
32B];
  vect_y_w_0_5.62_21 =3D VEC_PERM_EXPR <vect_y_w_0_5.54_24, vect_y_w_0_5.52=
_10, {
0, 3 }>;
  vect__25.63_20 =3D vect_y_w_0_5.51_14 | vect_x_w_0_36.60_44;
  vect__25.63_19 =3D vect_y_w_0_5.55_6 | vect_y_w_0_5.62_21;
  MEM <vector(2) long unsigned int> [(long unsigned int *)t_4(D) + 32B] =3D
vect__25.63_20;
  MEM <vector(2) long unsigned int> [(long unsigned int *)t_4(D) + 48B] =3D
vect__25.63_19;



vs
  vect_y_w_0_10.25_44 =3D MEM <vector(2) long unsigned int> [(long unsigned=
 int
*)t_2(D)];
  vect_y_w_0_10.26_46 =3D MEM <vector(2) long unsigned int> [(long unsigned=
 int
*)t_2(D) + 16B];
  x =3D MEM[(const struct u256 &)t_2(D) + 32];
  vect__6.14_9 =3D MEM <vector(2) long unsigned int> [(long unsigned int *)=
&x];
  vect__8.18_14 =3D vect__6.14_9 | vect_y_w_0_10.25_44;
  MEM <vector(2) long unsigned int> [(long unsigned int *)&z] =3D vect__8.1=
8_14;
  vect__6.14_11 =3D MEM <vector(2) long unsigned int> [(long unsigned int *=
)&x +
16B];
  vect__8.18_36 =3D vect__6.14_11 | vect_y_w_0_10.26_46;
  MEM <vector(2) long unsigned int> [(long unsigned int *)&z + 16B] =3D
vect__8.18_36;
  x =3D{v} {CLOBBER(eol)};
  MEM[(struct u256 *)t_2(D) + 32B] =3D z;
  z =3D{v} {CLOBBER(eol)};=