From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14357 invoked by alias); 29 Apr 2012 20:49:07 -0000 Received: (qmail 14348 invoked by uid 22791); 29 Apr 2012 20:49:06 -0000 X-SWARE-Spam-Status: No, hits=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED 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; Sun, 29 Apr 2012 20:48:52 +0000 From: "davem at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/52684] glibc long double math tests fail on sparc 64-bit Date: Sun, 29 Apr 2012 20:49:00 -0000 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: davem at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: davem at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: 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 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: 2012-04/txt/msg02567.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52684 --- Comment #1 from davem at gcc dot gnu.org 2012-04-29 20:48:49 UTC --- Created attachment 27263 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27263 Testcase distilled from glibc's math/libm-test.inc compare_float_internal() This is distilled from glibc's math/libm-test.inc:compare_float_internal() when built for long double. The problem is that, with -ffloat-store, the compiler eliminates the stores into the stack that setup the stack slots for the arguments passed into _Qp_div().