From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15665 invoked by alias); 31 Aug 2005 09:40:33 -0000 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 Received: (qmail 15493 invoked by uid 48); 31 Aug 2005 09:40:24 -0000 Date: Wed, 31 Aug 2005 09:42:00 -0000 Message-ID: <20050831094024.15492.qmail@sourceware.org> From: "rguenth at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20050720134633.22568.arndt@jjj.de> References: <20050720134633.22568.arndt@jjj.de> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug rtl-optimization/22568] Should use cmov in some stituations X-Bugzilla-Reason: CC X-SW-Source: 2005-08/txt/msg03551.txt.bz2 List-Id: ------- Additional Comments From rguenth at gcc dot gnu dot org 2005-08-31 09:40 ------- With new tree-codes instead of using COND_EXPR we may use the tree-vectorizers if-conversion and make expand preserve the conditional moves. Also it shouldn't be too hard to hack rtl if-conversion to handle the case of exactly two set's in the then/else block, too, and that may turn out to be profitable always. Is there any arch whose conditional move will kill condition codes? RTL is not my best friend (yet), but ifcvt doens't look too bad either ;) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22568