From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19041 invoked by alias); 5 Jun 2008 06:42:21 -0000 Received: (qmail 18778 invoked by uid 48); 5 Jun 2008 06:41:38 -0000 Date: Thu, 05 Jun 2008 06:42:00 -0000 Message-ID: <20080605064138.18777.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug rtl-optimization/36438] gcc ICE compiling code with mmx builtin In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "davidxl at gcc dot 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: 2008-06/txt/msg00197.txt.bz2 ------- Comment #1 from davidxl at gcc dot gnu dot org 2008-06-05 06:41 ------- cse1 (RTL) does some expression simplification on the fly such as t = x << 4 r = t << 4 ==> r = x << 8 However for mmx shift operation, the mode (V1DI) for the const folding is illegal -- resulting in ICE. -- davidxl at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |davidxl at gcc dot gnu dot | |org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36438