From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11466 invoked by alias); 28 Feb 2006 09:02:43 -0000 Received: (qmail 11423 invoked by alias); 28 Feb 2006 09:02:40 -0000 Date: Tue, 28 Feb 2006 09:13:00 -0000 Message-ID: <20060228090240.11422.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/26436] [3.4 only] Use of 'mov' may violate WAW dependency 'GR%, % in 1 - 127' (impliedf), specific resource number is 14 In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "gdr at integrable-solutions dot net" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2006-02/txt/msg03157.txt.bz2 List-Id: ------- Comment #13 from gdr at integrable-solutions dot net 2006-02-28 09:02 ------- Subject: Re: [3.4 only] Use of 'mov' may violate WAW dependency 'GR%, % in 1 - 127' (impliedf), specific resource number is 14 "wilson at gcc dot gnu dot org" writes: [...] | As a workaround, we could modify the compiler to try to detect nested DV cases, | and emit extra unnecessary .pred.rel.mutex directives for them. This would | work around the assembler bug. Jim, you seem to understand well the issue. Would you ve willing to contribute a patch? GCC-3.4.6 release is soon; otherwise, I will just close this PR as won't fix. -- Gaby -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26436