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 8BB46383A202; Wed, 14 Sep 2022 07:46:48 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8BB46383A202
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1663141608;
	bh=X450d00yEWaNyv4J3HoXeSIdtf/fKOCDLQHgacrDTJQ=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=fmoUqRVWjdhBEVIcvmAbus9AxLEuT8zByUyHtsPDokitRsPYtvWbfO3UvltfIjXIA
	 FpOpKPuzqy81HaGO7B78FBE2j5tuRVYT0CgMIe1l/2RigbUz0PprtWuT2I2DBNCPqD
	 vBhCM15XQxq7YbKGYCsJp0EaWpTWoUe+PyIWjbj0=
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/106905] [13 Regression] ia64: ICE in in
 vect_peel_nonlinear_iv_init, at tree-vect-loop.cc:8412 on zstd-1.5.2 since
 r13-2503-gc13223b790bbc5
Date: Wed, 14 Sep 2022 07:46:48 +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: 13.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 13.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-106905-4-lfRK2q5euj@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-106905-4@http.gcc.gnu.org/bugzilla/>
References: <bug-106905-4@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=3D106905

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuhongt@gcc.gnu.org>:

https://gcc.gnu.org/g:93b09bf3246f413b8e469ebfd8ce43947c0073a6

commit r13-2656-g93b09bf3246f413b8e469ebfd8ce43947c0073a6
Author: liuhongt <hongtao.liu@intel.com>
Date:   Tue Sep 13 13:25:24 2022 +0800

    Check another epilog variable peeling case in
vectorizable_nonlinear_induction.

    in vectorizable_nonlinear_induction, r13-2503-gc13223b790bbc5 prevent
variable peeling by
    only checking LOOP_VINFO_MASK_SKIP_NITERS (loop_vinfo). But when
    "!vect_use_loop_mask_for_alignment_p (loop_vinfo) &&
    LOOP_VINFO_PEELING_FOR_ALIGNMENT (loop_vinfo) < 0", vectorizer will
    still do variable peeling for epilog, and it hits gcc_assert in
    vect_peel_nonlinear_iv_init.

    gcc/ChangeLog:

            PR tree-optimization/106905
            * tree-vect-loop.cc (vectorizable_nonlinear_induction): Return
            false when !vect_use_loop_mask_for_alignment_p (loop_vinfo) &&
            LOOP_VINFO_PEELING_FOR_ALIGNMENT (loop_vinfo) < 0.

    gcc/testsuite/ChangeLog:

            * gcc.target/i386/pr106905.c: New test.
            * gcc.target/ia64/pr106905.c: New test.=