From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6579 invoked by alias); 25 Feb 2011 00:55:38 -0000 Received: (qmail 6570 invoked by uid 22791); 25 Feb 2011 00:55:37 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 25 Feb 2011 00:55:34 +0000 From: "pthaugen at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/47862] Incorrect code for spilling a vector register X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: pthaugen at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Date: Fri, 25 Feb 2011 01:43:00 -0000 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: 2011-02/txt/msg02824.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47862 --- Comment #2 from Pat Haugen 2011-02-25 00:55:20 UTC --- The DI mode for the spill locations is being decided in caller-save.c:init_caller_save(), which appears to decide what mode should be used when a caller-saved reg needs to be saved/restored (regno_save_mode[][]). This is done up front, without regard to what mode is actually in a register at the time of its use. The volatile floating point regs end up with a DI mode, the volatile Altivec regs get V2DF mode.