From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21167 invoked by alias); 5 Apr 2012 14:31:16 -0000 Received: (qmail 21158 invoked by uid 22791); 5 Apr 2012 14:31:15 -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; Thu, 05 Apr 2012 14:30:59 +0000 From: "hjl.tools at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/52876] [x32] - Sign extend 32 to 64bit then clear upper 32bits fails O1 or higher Date: Thu, 05 Apr 2012 14:31:00 -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: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: hjl.tools at gmail dot com 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: 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/msg00363.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52876 --- Comment #10 from H.J. Lu 2012-04-05 14:30:40 UTC --- simplify_binary_operation (code=AND, mode=DImode, op0=0x7ffff1ac0900, op1=0x7ffff1a8ffb0) at /export/gnu/import/git/gcc/gcc/simplify-rtx.c:1893 1893 gcc_assert (GET_RTX_CLASS (code) != RTX_COMPARE); (gdb) call debug_rtx (op0) (reg/f:DI 64 [ addr ]) (gdb) call debug_rtx (op1) (const_int 4294967295 [0xffffffff]) (gdb) returns (reg/f:DI 64 [ addr ])