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 603033858C66; Tue, 14 Mar 2023 10:11:23 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 603033858C66
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1678788683;
	bh=6ApQyEuzEBDAqQDx4PRr62Zl+mSne+ofAVz0CiirxFA=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=QgsMPnW78j6d2qRmjf/jfg6EzU2G73fWPQ0QBBxY5mW1h51plc6zHvuvzSm0td3a8
	 KIFWqjD9aR7aRt5yq1Zm9cYicrBihaQTjhdO5ACr0qRI2MqSp5cSfrnJF4n8fwUyXC
	 LlsMgo/TfmRAV8vbaVEeD3xyC5EWlRxmPtJx2hDk=
From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/109109] [13 Regression] mariadb fails in tests on i586
 (non-LTO mode) after r13-4435-g2c089640279614e3
Date: Tue, 14 Mar 2023 10:11:21 +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: 13.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: marxin 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: 13.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-109109-4-LUVNk3nsnp@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109109-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109109-4@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=3D109109

--- Comment #14 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
Btw. the problematic instruction that assembly the page_id_t:

# /tmp/trxundo.ii:181919:  if (__builtin_expect(!undo_block, (0))) {
        addl    $48, %esp       #,
# /tmp/trxundo.ii:181915:  buf_block_t* undo_block =3D
buf_page_get_gen(page_id_t(rseg->space->id,
        movl    %eax, -56(%ebp) # _39, %sfp
# /tmp/trxundo.ii:181919:  if (__builtin_expect(!undo_block, (0))) {
        testl   %eax, %eax      # _39
        je      .L636   #,
# /tmp/trxundo.ii:181923:  saved =3D page_id_t(rseg->space->id, hdr_page_no=
);
        movl    (%esi), %eax    # rseg_35(D)->space, rseg_35(D)->space
# /tmp/trxundo.ii:181923:  saved =3D page_id_t(rseg->space->id, hdr_page_no=
);
        movl    -44(%ebp), %ebx # %sfp, tmp82
# /tmp/trxundo.ii:58816:     m_id(uint64_t{space} << 32 | page_no) {}
        movl    44(%eax), %edx  # _9->id, _69
# /tmp/trxundo.ii:181923:  saved =3D page_id_t(rseg->space->id, hdr_page_no=
);
        movl    saved@GOT(%ebx), %ecx   #, tmp164
        movl    %edx, (%ecx)    # _69, saved.m_id
        movl    %edx, 4(%ecx)   # _69, saved.m_id
# /tmp/trxundo.ii:181924:  if (saved.raw() =3D=3D 0)
        movl    %edx, %ecx      # _69, tmp213
        orl     %edx, %ecx      # tmp214, tmp215
        je      .L662   #,

for my adjusted code:

 saved =3D page_id_t(rseg->space->id, hdr_page_no);
 if (saved.raw() =3D=3D 0)
   __builtin_abort ();=