From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29405 invoked by alias); 15 Nov 2002 23:25:20 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 29372 invoked by uid 61); 15 Nov 2002 23:25:19 -0000 Date: Thu, 21 Nov 2002 14:26:00 -0000 Message-ID: <20021115232519.29371.qmail@sources.redhat.com> To: danglin@gcc.gnu.org, dtucker@zip.com.au, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org From: danglin@gcc.gnu.org Reply-To: danglin@gcc.gnu.org, danglin@gcc.gnu.org, dtucker@zip.com.au, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org Subject: Re: optimization/7625: gcc pessimized 64-bit % operator on hppa2.0 X-SW-Source: 2002-11/txt/msg00787.txt.bz2 List-Id: Synopsis: gcc pessimized 64-bit % operator on hppa2.0 Responsible-Changed-From-To: unassigned->danglin Responsible-Changed-By: danglin Responsible-Changed-When: Fri Nov 15 15:25:18 2002 Responsible-Changed-Why: Assignment. State-Changed-From-To: open->analyzed State-Changed-By: danglin State-Changed-When: Fri Nov 15 15:25:18 2002 State-Changed-Why: Problem confirmed. GCC currently uses __umoddi3 from libgcc2.c for the operation. We need to add pattern to allow use of $$rem2U when available. We don't currently have this routine in the millicode routines used with linux. I suspect there may be other 64-bit operations that are pessimized by using generic libgcc code. http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7625