From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 80F383940CDA; Wed, 11 Mar 2020 13:13:58 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 80F383940CDA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1583932438; bh=3GDjULa8FzbIyuMfv450GCa3qwlv7/t2upXA4ueW+x4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=uQZLyIHVUuKJ4F2rE5GT3l/N5c9pf5wz/MOvkfgv53FX/sGUNaqgYcPMZfYAYUMIv zLaymW/IbAMaeyX1mZrIvQHefSLQCcYUAu/ilTB2TqkpBZLUi/1+e+BNsggu9y1m7j XI9RkjPqx3RJW8LVoAugHhWAtMOSwUSwbzK7mwS4= From: "marxin at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/94129] Using almost any openacc !$acc directive causes ICE "compressed stream: data error" Date: Wed, 11 Mar 2020 13:13:58 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Version: 10.0 X-Bugzilla-Keywords: openacc X-Bugzilla-Severity: normal X-Bugzilla-Who: marxin at gcc dot gnu.org X-Bugzilla-Status: NEW 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: In-Reply-To: References: 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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Mar 2020 13:13:58 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94129 --- Comment #6 from Martin Li=C5=A1ka --- (In reply to Matthias Klose from comment #3) > $ gfortran-10 -v -fopenacc program.f90 2>&1 |grep zstd > Supported LTO compression algorithms: zlib zstd > Supported LTO compression algorithms: zlib zstd >=20 > afaics both builds are correctly configured. Then you can dump lto header in a .o file: $ gcc -flto -c bss.c $ readelf -SW bss.o | grep lto_.lto [ 6] .gnu.lto_.lto.2cfeb5fb4c8095f PROGBITS 0000000000000000 000062 000008 00 E 0 0 1 $ objdump -s -j .gnu.lto_.lto.2cfeb5fb4c8095f bss.o bss.o: file format elf64-x86-64 Contents of section .gnu.lto_.lto.2cfeb5fb4c8095f: 0000 09000000 01000100 ........=20=20=20=20=20=20=20=20 that ending 0100 is zstd =3D=3D 1.=