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 950493858D20; Tue,  2 May 2023 09:57:38 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 950493858D20
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1683021458;
	bh=PYUkiEGa+2VHOfGj/gNigqCkn1h2EFHwszHrkcjwlEc=;
	h=From:To:Subject:Date:From;
	b=i8YIDvSSznQPMHV1wtgSsB0k2zqIFAHC5UGYH/bfOlR81zc1oQpZGIWSCZivoUjyf
	 KF/seapKLlCuqRhtmaw8bC6ae+UhD78LSX8j832da5DNhRGNgMl+hw7mhyHuPmIIeo
	 02JdNgBAf9LNbPfEgQHVSmVsyzmYrVa6eVxg0A+k=
From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/109695] New: crash in gimple_ranger::range_of_expr
Date: Tue, 02 May 2023 09:57:37 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dcb314 at hotmail dot com
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
 bug_severity priority component assigned_to reporter target_milestone
 attachments.created
Message-ID: <bug-109695-4@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=3D109695

            Bug ID: 109695
           Summary: crash in gimple_ranger::range_of_expr
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 54966
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D54966&action=3Dedit
gzipped C++ source code

The attached C++ code does this when compiled by today's gcc:

$ ~/gcc/results.20230502.asan.ubsan/bin/gcc -c -w bug914.cc
gcc: internal compiler error: Segmentation fault signal terminated program
cc1plus
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://gcc.gnu.org/bugs/> for instructions.
$

It was fine yesterday:

$ ~/gcc/results.20230501.asan.ubsan/bin/gcc -c -w bug914.cc
$=20

Here is a stack backtrace of the crash:

#0  0x0000000001f5328b in gimple_ranger::range_of_expr (this=3D0x36e4d50, r=
=3D...,=20
    expr=3D0x7fffe0369990, stmt=3D0x7fffe8cd6688)
    at ../../trunk.year/gcc/gimple-range.cc:87
#1  0x0000000001f62f96 in fold_using_range::range_of_range_op (
    this=3Dthis@entry=3D0x7ffffc01e100, r=3D..., handler=3D..., src=3D...)
    at ../../trunk.year/gcc/gimple-range-fold.cc:559
#2  0x0000000001f61d4e in fold_using_range::fold_stmt (this=3D0x7ffffc01e10=
0,=20
    r=3D..., s=3D0x7fffe8cd6688, src=3D..., name=3D0x7fffe0369cf0)
    at ../../trunk.year/gcc/gimple-range-fold.cc:490
#3  0x0000000001f54220 in gimple_ranger::fold_range_internal (this=3D0x36e4=
d50,=20
    r=3D..., s=3D0x7fffe8cd6688, name=3D<optimized out>)
    at ../../trunk.year/gcc/gimple-range.cc:257=