From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13603 invoked by alias); 5 Sep 2006 19:25:32 -0000 Received: (qmail 13274 invoked by uid 48); 5 Sep 2006 19:25:21 -0000 Date: Tue, 05 Sep 2006 19:25:00 -0000 Message-ID: <20060905192521.13273.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug middle-end/28690] [4.2 Regression] Performace problem with indexed load/stores on powerpc 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-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2006-09/txt/msg00368.txt.bz2 List-Id: ------- Comment #6 from bonzini at gnu dot org 2006-09-05 19:25 ------- To clarify, I make this suggestion because I think that we were getting it right pre-4.2 just out of luck. I also thought about having a lower commutative_operand_precedence for REG_POINTER regs than normal regs, but in fact regs need to have the same precedence as other rtx's of class RTX_OBJ, or you get pessimization on x86 (e.g. on crafty). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28690