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 D1AC03882AD5; Tue, 18 Jun 2024 11:23:13 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D1AC03882AD5
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1718709793;
	bh=lKVG5NGLM1gnclgqrnweTiD3PBYONubarJF1Hx9XpzQ=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=TkOOy8r18uhg/iWsUpBop0KdKpBuQTQuY+Crd3qvolteRI/HjZMsr+xu/TMDSaBfe
	 PmV8fsFGEMafXjEaIJyjYdK0dRVGCz/Ic9SpMUhEC7SBAFUR2bxe+QbRual4zD4sFz
	 v4T44713qYXRayKyv3H0vMZZgiwVGK7V07foTXKQ=
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/115464] [14 Backport] ICE when building libaom on arm64
 (neon sve bridge usage with tbl/perm)
Date: Tue, 18 Jun 2024 11:23:12 +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: 15.0
X-Bugzilla-Keywords: aarch64-sve, ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: rsandifo at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-115464-4-CNpwRQjfMX@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-115464-4@http.gcc.gnu.org/bugzilla/>
References: <bug-115464-4@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=3D115464

--- Comment #12 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Richard Sandiford <rsandifo@gcc.gnu.or=
g>:

https://gcc.gnu.org/g:6bd4fbae45d11795a9a6f54b866308d4d7134def

commit r15-1399-g6bd4fbae45d11795a9a6f54b866308d4d7134def
Author: Richard Sandiford <richard.sandiford@arm.com>
Date:   Tue Jun 18 12:22:31 2024 +0100

    aarch64: Add some uses of force_lowpart_subreg

    This patch makes more use of force_lowpart_subreg, similarly
    to the recent patch for force_subreg.  The criteria were:

    (1) The code is obviously specific to expand (where new pseudos
        can be created).

    (2) The value is obviously an rvalue rather than an lvalue.

    gcc/
            PR target/115464
            * config/aarch64/aarch64-builtins.cc (aarch64_expand_fcmla_buil=
tin)
            (aarch64_expand_rwsr_builtin): Use force_lowpart_subreg instead=
 of
            simplify_gen_subreg and lowpart_subreg.
            * config/aarch64/aarch64-sve-builtins-base.cc
            (svset_neonq_impl::expand): Likewise.
            * config/aarch64/aarch64-sve-builtins-sme.cc
            (add_load_store_slice_operand): Likewise.
            * config/aarch64/aarch64.cc (aarch64_sve_reinterpret): Likewise.
            (aarch64_addti_scratch_regs, aarch64_subvti_scratch_regs):
Likewise.

    gcc/testsuite/
            PR target/115464
            * gcc.target/aarch64/sve/acle/general/pr115464_2.c: New test.=