From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27759 invoked by alias); 9 Feb 2009 13:36:05 -0000 Received: (qmail 27686 invoked by uid 48); 9 Feb 2009 13:35:53 -0000 Date: Mon, 09 Feb 2009 13:36:00 -0000 Message-ID: <20090209133553.27685.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/38824] [4.4 Regression] performance regression of sse code from 4.2/4.3 In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "bonzini at gnu dot org" 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: 2009-02/txt/msg00765.txt.bz2 ------- Comment #18 from bonzini at gnu dot org 2009-02-09 13:35 ------- Xuepeng, can you test with the loop as produced by my posted patch, that is: .L11: movaps (%rsi,%rax), %xmm0 addps %xmm1, %xmm0 movaps %xmm0, (%rdi,%rax) addq $16, %rax cmpq %rdx, %rax jne .L11 I don't have access to new enough chips. -- bonzini at gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bonzini at gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38824