From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27478 invoked by alias); 3 Oct 2012 17:36:16 -0000 Received: (qmail 25327 invoked by uid 48); 3 Oct 2012 17:35:45 -0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug debug/54796] [4.8 Regression] Non-addressable stack parameter debug quality regression Date: Wed, 03 Oct 2012 17:36:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: debug X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub 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: 4.8.0 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 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: 2012-10/txt/msg00226.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54796 --- Comment #2 from Jakub Jelinek 2012-10-03 17:35:44 UTC --- Perhaps it would suffice to reserve another rtx flag bit on VALUE for SP_BASED_VALUE_P, and just from var-tracking if hard_frame_pointer_adjustment is != -1 (i.e. frame_pointer_needed and hfp = assignment has been seen) mark that way sp values that are created afterwards, and change find_base_term in alias.c so that it returns static_reg_base_value[STACK_POINTER_REGNUM] when seeing VALUEs marked that way.