From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11293 invoked by alias); 11 Oct 2010 16:30:36 -0000 Received: (qmail 11265 invoked by uid 22791); 11 Oct 2010 16:30:33 -0000 X-SWARE-Spam-Status: No, hits=-2.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,MISSING_MID,TW_CP 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; Mon, 11 Oct 2010 16:30:28 +0000 From: "danglin at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/45722] [4.6 Regression] FAIL: gcc.c-torture/execute/20040709-2.c execution at -O1 and -Os X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: danglin at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.6.0 X-Bugzilla-Changed-Fields: 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: Mon, 11 Oct 2010 16:30:00 -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: 2010-10/txt/msg00904.txt.bz2 Message-ID: <20101011163000.BsebJa-auUoslMTkCV5iJ5nJskAEpPoLpmEzqX073-8@z> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45722 --- Comment #14 from John David Anglin 2010-10-11 16:30:09 UTC --- At -O0, memcpy is used. So, problem doesn't occur. ;; x = sB; (insn 81 80 82 (set (reg/f:SI 160) (high:SI (symbol_ref:SI ("sB") [flags 0x200] )) ) pr45722-2.c:48 -1 (nil)) (insn 82 81 83 (set (reg/f:SI 159) (lo_sum:SI (reg/f:SI 160) (symbol_ref:SI ("sB") [flags 0x200] ))) pr4 5722-2.c:48 -1 (expr_list:REG_EQUAL (symbol_ref:SI ("sB") [flags 0x200] ) (nil))) (insn 83 82 84 (set (reg:SI 161) (plus:SI (reg/f:SI 91 virtual-stack-vars) (const_int 24 [0x18]))) pr45722-2.c:48 -1 (nil)) (insn 84 83 85 (set (reg/f:SI 162) (reg/f:SI 159)) pr45722-2.c:48 -1 (nil)) (insn 85 84 86 (set (reg:SI 163) (const_int 6 [0x6])) pr45722-2.c:48 -1 (nil)) (insn 86 85 87 (set (reg:SI 26 %r26) (reg:SI 161)) pr45722-2.c:48 -1 (nil)) (insn 87 86 88 (set (reg:SI 25 %r25) (reg/f:SI 162)) pr45722-2.c:48 -1 (nil)) (insn 88 87 89 (set (reg:SI 24 %r24) (reg:SI 163)) pr45722-2.c:48 -1 (nil)) (call_insn 89 88 90 (parallel [ (set (reg:SI 28 %r28) (call (mem:SI (symbol_ref/v:SI ("@memcpy") [flags 0x41] ) [0 S4 A32]) (const_int 16 [0x10]))) (clobber (reg:SI 1 %r1)) (clobber (reg:SI 2 %r2)) (use (const_int 0 [0])) ]) pr45722-2.c:48 -1 (expr_list:REG_EH_REGION (const_int 0 [0]) (nil)) (expr_list:REG_DEP_TRUE (use (reg:SI 24 %r24)) (expr_list:REG_DEP_TRUE (use (reg:SI 25 %r25)) (expr_list:REG_DEP_TRUE (use (reg:SI 26 %r26)) (nil))))) (insn 90 89 0 (set (reg:SI 164) (reg:SI 28 %r28)) pr45722-2.c:48 -1 (nil)) ;; r_16 = fn3B (a_13);