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 4D98B3858D1E; Tue, 16 May 2023 23:41:12 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 4D98B3858D1E
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1684280472;
	bh=i7VKx/p43Xis5KcA4Fi0qHZSRVjK6AZnwDoeNKK0+NA=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=pBfJMpH3N7dmRw6msMLvInH1OcBdwFcN+q6U9+risf/4JLH9InjcJ7c4UkupJyhSn
	 W0XYa4y2HcbgswTx8z52ABS5M/f/KAQ5+8Dt/RQVK8EpIWOAHhub3Oo607SXRFDEza
	 xBlqBw8YxE6aB3OWAswPewd5HqNFOPnMLsPNXMmA=
From: "gnugcc at marino dot st" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/109881] GNAT BUG DETECTED during RTL pass, raised
 TYPES.UNRECOVERABLE_ERROR
Date: Tue, 16 May 2023 23:41:12 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: ada
X-Bugzilla-Version: 11.2.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: gnugcc at marino dot st
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: 
Message-ID: <bug-109881-4-fxRMvZIBML@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109881-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109881-4@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=3D109881

--- Comment #2 from John Marino <gnugcc at marino dot st> ---
I found the problematic line.

I changed this line:
data_in :=3D read_compressed_data (input_stream, planned, bytes_read);

to:
bytes_read :=3D read_compressed_data (input_stream  =3D> input_stream,
                                    bytes_planned =3D> planned,
                                    data_in       =3D> data_in);

and the read_compressed_data function was changed from:
   function read_compressed_data
     (input_stream  : not null SIO.Stream_Access;
      bytes_planned : Natural;
      bytes_read    : out Natural) return data_in_type;

to:
   function read_compressed_data
     (input_stream  : not null SIO.Stream_Access;
      bytes_planned : Natural;
      data_in       : out data_in_type) return Natural;

The rearrangement of the function avoided the GNAT bug.=