From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-362776-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 6383 invoked by alias); 15 Jul 2011 17:10:20 -0000
Received: (qmail 6373 invoked by uid 22791); 15 Jul 2011 17:10:19 -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, 15 Jul 2011 17:10:05 +0000
From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/48220] DW_OP_GNU_entry_value/DW_TAG_GNU_call_site_parameter vs register window
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: ebotcazou at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Changed-Fields:
Message-ID: <bug-48220-4-DUxIVjlHU7@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-48220-4@http.gcc.gnu.org/bugzilla/>
References: <bug-48220-4@http.gcc.gnu.org/bugzilla/>
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, 15 Jul 2011 17:10:00 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2011-07/txt/msg01260.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48220

--- Comment #10 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-07-15 17:10:00 UTC ---
Author: ebotcazou
Date: Fri Jul 15 17:09:56 2011
New Revision: 176318

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176318
Log:
    PR target/48220
    * doc/md.texi (Standard Names): Document window_save.
    * cfgexpand.c (expand_debug_parm_decl): New function extracted from
    expand_debug_expr and expand_debug_source_expr.  If the target has
    a window_save instruction, adjust the ENTRY_VALUE_EXP.
    (expand_debug_expr) <SSA_NAME>: Call expand_debug_parm_decl if the
    SSA_NAME_VAR is a parameter.
    (expand_debug_source_expr) <PARM_DECL>: Call expand_debug_parm_decl.
    * var-tracking.c (parm_reg_t): New type and associated vector type.
    (windowed_parm_regs): New variable.
    (adjust_insn): If the target has a window_save instruction and this
    is the instruction, make its effect on parameter registers explicit.
    (next_non_note_insn_var_location): New function.
    (emit_notes_in_bb): Use it instead of NEXT_INSN throughout.
    (vt_add_function_parameter): If the target has a window_save insn,
    adjust the incoming RTL and record that in windowed_parm_regs.
    (vt_finalize): Free windowed_parm_regs.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgexpand.c
    trunk/gcc/doc/md.texi
    trunk/gcc/var-tracking.c