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 4C437384607B; Fri,  5 Apr 2024 13:06:13 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 4C437384607B
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1712322373;
	bh=iZwD56YFIwX4gzYpkkTYyI8Guky+0aobJakhxZR8fVQ=;
	h=From:To:Subject:Date:From;
	b=Pcv0MK0REU8bHUk2BzTM20iGRY2+qwhxSAPvVnCVxhqKD3Yac4parKCsg7sPvmtn/
	 z0SfvBZNJvvYZd7SE+do3dCgY8BhnzQd4DAVx7dljv5vnhXwtvm5LAqKGJQewKg6u5
	 onh1h7APX3zOQAR/tW8ADHFIWirnT9s7iBIEdu7k=
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/114604] New: Ranger allocates from uninitialized
 bitmap_default_obstack
Date: Fri, 05 Apr 2024 13:06:12 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth 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: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-114604-4@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=3D114604

            Bug ID: 114604
           Summary: Ranger allocates from uninitialized
                    bitmap_default_obstack
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
  Target Milestone: ---

Visible at least from gcc.dg/torture/pr52429.c when instrumenting
bitmap_alloc with

bitmap
bitmap_alloc (bitmap_obstack *bit_obstack MEM_STAT_DECL)
{
  bitmap map;

  if (!bit_obstack)
    {
      gcc_assert (bitmap_default_obstack_depth > 0);
      bit_obstack =3D &bitmap_default_obstack;

gcc.dg/torture/pr52429.c:24:1: internal compiler error: in bitmap_alloc, at
bitmap.cc:785^M
0xf3d95b bitmap_alloc(bitmap_obstack*)^M
        /home/rguenther/src/trunk/gcc/bitmap.cc:785^M
0x2e89005 update_list::update_list()^M
        /home/rguenther/src/trunk/gcc/gimple-range-cache.cc:900^M
0x2e893a2 ranger_cache::ranger_cache(int, bool)^M
        /home/rguenther/src/trunk/gcc/gimple-range-cache.cc:976^M
0x2e815a9 gimple_ranger::gimple_ranger(bool)^M
        /home/rguenther/src/trunk/gcc/gimple-range.cc:44^M
0x2e83e88 enable_ranger(function*, bool)^M
        /home/rguenther/src/trunk/gcc/gimple-range.cc:693^M
0x13bfd62 ipa_analyze_node(cgraph_node*)^M
        /home/rguenther/src/trunk/gcc/ipa-prop.cc:3191^M=