From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-466876-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 4298 invoked by alias); 15 Nov 2014 16:21:16 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Received: (qmail 4276 invoked by uid 48); 15 Nov 2014 16:21:13 -0000
From: "fxcoudert at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/63892] New: [5.0 regression] gcc.dg/sibcall-3.c fails on darwin with -m32
Date: Sat, 15 Nov 2014 16:21:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 5.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: fxcoudert at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
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 attachments.created
Message-ID: <bug-63892-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 7bit
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2014-11/txt/msg01348.txt.bz2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63892

            Bug ID: 63892
           Summary: [5.0 regression] gcc.dg/sibcall-3.c fails on darwin
                    with -m32
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: fxcoudert at gcc dot gnu.org

Created attachment 33986
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33986&action=edit
Assembler generated by the 4.9.2 compiler and trunk

Compiling sibcall-3.c with "-O2 -foptimize-sibling-calls -m32" on
x86_64-apple-darwin14 leads to runtime abort: on line 76, the test (trackpoint
!= stackpos) is true.

I attach to this PR the sibcall-3.c source (slightly amended so it prints out
the values of the pointers that should be equal), and the assembler generated
by the 4.9.2 compiler and trunk, both with "-O2 -foptimize-sibling-calls -m32".