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 67E063858D3C; Mon, 22 Apr 2024 11:54:23 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 67E063858D3C
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1713786863;
	bh=4vSzMSI26T9Jnhwa0ZexahFMqqI6I48mN6BSk6eqEGo=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=a8VFzW6s0xeLyYc5MkA+3dMx6jBwv6iwjkjML7WUg0WZyIRtx2XekPvQKdYKpumIG
	 dYovFU1roINK4NdhKa8EnDEcuG7OUuyG006t7eW0638xb9I9bPU0Tt1aSJFqnGBMrM
	 Pu+o9DTacbBmrcRiaq9aN0DHUdwF9mGcTiNOpe/g=
From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/114799] [14 Regression] ICE: tree check:
 expected class 'type', have 'exceptional' (error_mark) in
 useless_type_conversion_p, at gimple-expr.cc:85 with -O2 
 -fno-vect-cost-model since r14-9316
Date: Mon, 22 Apr 2024 11:54:22 +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: 14.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: jakub at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P1
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 14.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-114799-4-QtMwP20DZl@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-114799-4@http.gcc.gnu.org/bugzilla/>
References: <bug-114799-4@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=3D114799

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
_10 is created during pattern recognition:
patt_10 =3D (unsigned short) y.0_1;

#0  vect_convert_input (vinfo=3D0x3a883e0, stmt_info=3D0x3be5410,
type=3D<integer_type 0x7fffea2db540>, unprom=3D0x7fffffffcc80, vectype=3D<v=
ector_type
0x7fffea2db930>, subtype=3Doptab_default)
    at ../../gcc/tree-vect-patterns.cc:926
#1  0x00000000026dcede in vect_convert_inputs (vinfo=3D0x3a883e0,
stmt_info=3D0x3be5410, n=3D2, result=3D0x7fffffffcc50, type=3D<integer_type
0x7fffea2db540>, unprom=3D0x7fffffffcc80,=20
    vectype=3D<vector_type 0x7fffea2db930>, subtype=3Doptab_default) at
../../gcc/tree-vect-patterns.cc:977
#2  0x00000000026e35f5 in vect_recog_over_widening_pattern (vinfo=3D0x3a883=
e0,
last_stmt_info=3D0x3be5410, type_out=3D0x7fffffffce48) at
../../gcc/tree-vect-patterns.cc:3155
#3  0x00000000026f250a in vect_pattern_recog_1 (vinfo=3D0x3a883e0,
recog_func=3D0x385ae30 <vect_vect_recog_func_ptrs+48>, stmt_info=3D0x3be541=
0) at
../../gcc/tree-vect-patterns.cc:7181
#4  0x00000000026f29fb in vect_pattern_recog (vinfo=3D0x3a883e0) at
../../gcc/tree-vect-patterns.cc:7338
#5  0x00000000011663ac in vect_slp_analyze_bb_1 (bb_vinfo=3D0x3a883e0, n_st=
mts=3D9,
fatal=3D@0x7fffffffd2cb: false, Python Exception <class 'gdb.error'>: There=
 is no
member or method named m_vecpfx.
dataref_groups=3D0x7fffffffd760) at ../../gcc/tree-vect-slp.cc:7722
#6  0x00000000011668b6 in vect_slp_region (bbs=3D..., datarefs=3D..., Python
Exception <class 'gdb.error'>: There is no member or method named m_vecpfx.
dataref_groups=3D0x7fffffffd760, n_stmts=3D9, orig_loop=3D0x0) at
../../gcc/tree-vect-slp.cc:7831
#7  0x000000000116791f in vect_slp_bbs (bbs=3D..., orig_loop=3D0x0) at
../../gcc/tree-vect-slp.cc:8042

Unfortunately, I'm afraid I know next to nothing about SLP handling of
patterns, just loop vectorization :(=