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 A2DE63858D32; Mon,  3 Oct 2022 11:26:12 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A2DE63858D32
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1664796372;
	bh=c6EBckM35I5lbBEJh/1sj7B7s/pWbKqvMrydwMp6dSY=;
	h=From:To:Subject:Date:From;
	b=FELhqqDnkWKy+M01cO6UxxEEQ/QPk3Sc6dAG4BfhMzvScaLlKvI84Vv/8hLkc9hUz
	 mBlLzN7cXAewNKHDAY0gXyaV4r2PmhXuLZ83irS7gSbbjNocN46CBJBsRcVgHJdDj1
	 uHpZznuv02JO0ANkvVrWR1aR1Q3xMUn4MV6K5i4w=
From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/107130] New: [13 Regression] wrong code with
 -Os -fno-tree-ccp -fno-tree-forwprop -fno-tree-fre
Date: Mon, 03 Oct 2022 11:26:12 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: zsojka at seznam dot cz
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: bug_id short_desc product version bug_status
 keywords bug_severity priority component assigned_to reporter
 target_milestone cf_gcchost attachments.created
Message-ID: <bug-107130-4@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=3D107130

            Bug ID: 107130
           Summary: [13 Regression] wrong code with -Os -fno-tree-ccp
                    -fno-tree-forwprop -fno-tree-fre
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu

Created attachment 53653
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D53653&action=3Dedit
reduced testcase

Output:
$ x86_64-pc-linux-gnu-gcc -Os -fno-tree-ccp -fno-tree-forwprop -fno-tree-fre
testcase.c
$ ./a.out=20
Aborted

The generated code just aborts:
main:
        push    rax
        call    abort


$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=3D/repo/gcc-trunk/binary-latest/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=3D/repo/gcc-trunk/binary-trunk-r13-3023-20221003092645-=
g31d7c8bc263-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc=
/x86_64-pc-linux-gnu/13.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=3Dc,c++
--enable-valgrind-annotations --disable-nls --enable-checking=3Dyes,rtl,df,=
extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=3Dx86_64-pc-linux-gnu --host=3Dx86_64-pc-linux-gnu
--target=3Dx86_64-pc-linux-gnu --with-ld=3D/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=3D/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=3D/repo/gcc-trunk//binary-trunk-r13-3023-20221003092645-g31d7c8bc2=
63-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.0 20221003 (experimental) (GCC)=