From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21541 invoked by alias); 16 Dec 2010 09:14:46 -0000 Received: (qmail 21528 invoked by uid 22791); 16 Dec 2010 09:14:45 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 16 Dec 2010 09:14:41 +0000 From: "mikpe at it dot uu.se" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/46972] __thread storage class variable gets optimized out on ARM X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mikpe at it dot uu.se X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: CC Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Date: Thu, 16 Dec 2010 09:14:00 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2010-12/txt/msg01874.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46972 Mikael Pettersson changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mikpe at it dot uu.se --- Comment #2 from Mikael Pettersson 2010-12-16 09:14:33 UTC --- The test case works for me on armv5tel-linux-gnueabi with gcc 4.4, 4.5, and 4.6. Comparing your assemby code with mine I see that your calls __emutls_get_address while mine calls __aeabi_read_tp, and the section allocation for .LANCHOR0 is different (your is in .bss, mine is in .section .tdata,"awT",%progbits). So I suspect the issue is dependent on emutls or uclibc.