From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-263785-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 29473 invoked by alias); 7 Oct 2008 18:51:53 -0000
Received: (qmail 27757 invoked by alias); 7 Oct 2008 18:50:04 -0000
Date: Tue, 07 Oct 2008 18:51:00 -0000
Message-ID: <20081007185004.27756.qmail@sourceware.org>
X-Bugzilla-Reason: CC
References: <bug-36690-12292@http.gcc.gnu.org/bugzilla/>
Subject: [Bug debug/36690] [4.3/4.4 Regression] .debug_line first line is behind the first instruction
In-Reply-To: <bug-36690-12292@http.gcc.gnu.org/bugzilla/>
Reply-To: gcc-bugzilla@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org
From: "jakub at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
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: 2008-10/txt/msg00512.txt.bz2



------- Comment #6 from jakub at gcc dot gnu dot org  2008-10-07 18:50 -------
Subject: Bug 36690

Author: jakub
Date: Tue Oct  7 18:48:40 2008
New Revision: 140948

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=140948
Log:
        PR debug/29609
        PR debug/36690
        PR debug/37616
        * basic-block.h (struct edge_def): Add goto_block field.
        * cfglayout.c (fixup_reorder_chain): Ensure that there is at least
        one insn with locus corresponding to edge's goto_locus if !optimize.
        * profile.c (branch_prob): Copy edge's goto_block.
        * cfgrtl.c (force_nonfallthru_and_redirect): Use goto_locus for
        emitted jumps.
        (cfg_layout_merge_blocks): Emit a nop with edge's goto_locus
        locator in between the merged basic blocks if !optimize and needed.
        * cfgexpand.c (expand_gimple_cond): Convert goto_block and
        goto_locus into RTL locator.  For unconditional jump use that
        locator for the jump insn.
        (expand_gimple_cond): Convert goto_block and goto_locus into
        RTL locator for all remaining edges.  For unconditional jump
        use that locator for the jump insn.
        * cfgcleanup.c (try_forward_edges): Avoid the optimization if
        there is more than one edge or insn locator along the forwarding
        edges and !optimize.  If there is just one, set e->goto_locus.
        * tree-cfg.c (make_cond_expr_edges, make_goto_expr_edges): Set also
        edge's goto_block.
        (move_block_to_fn): Adjust edge's goto_block.

        * gcc.dg/debug/pr29609-1.c: New test.
        * gcc.dg/debug/pr29609-2.c: New test.
        * gcc.dg/debug/pr36690-1.c: New test.
        * gcc.dg/debug/pr36690-2.c: New test.
        * gcc.dg/debug/pr36690-3.c: New test.
        * gcc.dg/debug/pr37616.c: New test.
        * gcc.dg/debug/dwarf2/pr29609-1.c: New test.
        * gcc.dg/debug/dwarf2/pr29609-2.c: New test.
        * gcc.dg/debug/dwarf2/pr36690-1.c: New test.
        * gcc.dg/debug/dwarf2/pr36690-2.c: New test.
        * gcc.dg/debug/dwarf2/pr36690-3.c: New test.
        * gcc.dg/debug/dwarf2/pr37616.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/debug/dwarf2/pr29609-1.c
    trunk/gcc/testsuite/gcc.dg/debug/dwarf2/pr29609-2.c
    trunk/gcc/testsuite/gcc.dg/debug/dwarf2/pr36690-1.c
    trunk/gcc/testsuite/gcc.dg/debug/dwarf2/pr36690-2.c
    trunk/gcc/testsuite/gcc.dg/debug/dwarf2/pr36690-3.c
    trunk/gcc/testsuite/gcc.dg/debug/dwarf2/pr37616.c
    trunk/gcc/testsuite/gcc.dg/debug/pr29609-1.c
    trunk/gcc/testsuite/gcc.dg/debug/pr29609-2.c
    trunk/gcc/testsuite/gcc.dg/debug/pr36690-1.c
    trunk/gcc/testsuite/gcc.dg/debug/pr36690-2.c
    trunk/gcc/testsuite/gcc.dg/debug/pr36690-3.c
    trunk/gcc/testsuite/gcc.dg/debug/pr37616.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/basic-block.h
    trunk/gcc/cfgcleanup.c
    trunk/gcc/cfgexpand.c
    trunk/gcc/cfglayout.c
    trunk/gcc/cfgrtl.c
    trunk/gcc/profile.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-cfg.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36690