[Bug testsuite/41700] New: g++.dg/debug/dwarf2/icf.C

[Bug testsuite/41700] New: g++.dg/debug/dwarf2/icf.C

[danglin at gcc dot gnu dot org]

Executing on host: /test/gnu/gcc/objdir/gcc/testsuite/g++/../../g++
-B/test/gnu/
gcc/objdir/gcc/testsuite/g++/../../
/test/gnu/gcc/gcc/gcc/testsuite/g++.dg/debug
/dwarf2/icf.C  -nostdinc++
-I/test/gnu/gcc/objdir/hppa64-hp-hpux11.11/libstdc++-
v3/include/hppa64-hp-hpux11.11
-I/test/gnu/gcc/objdir/hppa64-hp-hpux11.11/libstd
c++-v3/include -I/test/gnu/gcc/gcc/libstdc++-v3/libsupc++
-I/test/gnu/gcc/gcc/li
bstdc++-v3/include/backward -I/test/gnu/gcc/gcc/libstdc++-v3/testsuite/util
-fme
ssage-length=0  -O0 -gdwarf-2 -fenable-icf-debug -dA  -S  -o icf.s    (timeout
=
 300)
PASS: g++.dg/debug/dwarf2/icf.C (test for excess errors)
PASS: g++.dg/debug/dwarf2/icf.C scan-assembler \\.section.*.debug_dcall
FAIL: g++.dg/debug/dwarf2/icf.C scan-assembler \\.section.*.debug_vcall
PASS: g++.dg/debug/dwarf2/icf.C scan-assembler New caller
PASS: g++.dg/debug/dwarf2/icf.C scan-assembler Caller DIE offset
PASS: g++.dg/debug/dwarf2/icf.C scan-assembler Point of call
PASS: g++.dg/debug/dwarf2/icf.C scan-assembler Callee DIE offset
FAIL: g++.dg/debug/dwarf2/icf.C scan-assembler 0x0.*Vtable slot
FAIL: g++.dg/debug/dwarf2/icf.C scan-assembler 0x1.*Vtable slot


-- 
           Summary: g++.dg/debug/dwarf2/icf.C
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
 GCC build triplet: hppa64-hp-hpux11.11
  GCC host triplet: hppa64-hp-hpux11.11
GCC target triplet: hppa64-hp-hpux11.11


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700

[Bug testsuite/41700] g++.dg/debug/dwarf2/icf.C

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #1 from dave at hiauly1 dot hia dot nrc dot ca  2009-10-14 12:29 -------
Subject: Re:  g++.dg/debug/dwarf2/icf.C

One thing that may be relevant is the PA backend doesn't currently
provide vtable support when generating jumps to thunks.

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700

[Bug testsuite/41700] g++.dg/debug/dwarf2/icf.C

[sje at cup dot hp dot com]

------- Comment #2 from sje at cup dot hp dot com  2009-10-14 21:03 -------
I see failures for this test on IA64 HP-UX and Linux as well.

FAIL: g++.dg/debug/dwarf2/icf.C scan-assembler 0x0.*Vtable slot
FAIL: g++.dg/debug/dwarf2/icf.C scan-assembler 0x1.*Vtable slot
FAIL: g++.dg/debug/dwarf2/icf.C scan-assembler \\.section.*.debug_vcall


-- 

sje at cup dot hp dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sje at cup dot hp dot com
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-10-14 21:03:06
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700

[Bug testsuite/41700] g++.dg/debug/dwarf2/icf.C

[ccoutant at gcc dot gnu dot org]

------- Comment #3 from ccoutant at gcc dot gnu dot org  2009-10-17 00:30 -------
The insn UID is changed when the call_insn is split, so the vtable slot index
can't be found when it's time to build the vcall table.


-- 

ccoutant at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |ccoutant at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2009-10-14 21:03:06         |2009-10-17 00:30:53
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700

[Bug testsuite/41700] g++.dg/debug/dwarf2/icf.C

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #4 from dave at hiauly1 dot hia dot nrc dot ca  2009-10-20 23:12 -------
Subject: Re:  g++.dg/debug/dwarf2/icf.C

> The insn UID is changed when the call_insn is split, so the vtable slot index
> can't be found when it's time to build the vcall table.

So, it seems this is a middle-end bug.

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700

[Bug testsuite/41700] g++.dg/debug/dwarf2/icf.C

[ccoutant at gcc dot gnu dot org]

------- Comment #5 from ccoutant at gcc dot gnu dot org  2009-10-23 01:44 -------
Created an attachment (id=18876)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18876&action=view)
Proposed fix for PR 41700.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700

[Bug debug/41700] g++.dg/debug/dwarf2/icf.C

[ccoutant at gcc dot gnu dot org]

------- Comment #6 from ccoutant at gcc dot gnu dot org  2009-10-23 01:46 -------
I'm inclined to classify this as a debug problem rather than middle-end. Does
that seem reasonable?

Steve, could you see if this patch fixes the failure on PA and Itanium?

-cary


-- 

ccoutant at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|testsuite                   |debug


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700

[Bug debug/41700] g++.dg/debug/dwarf2/icf.C

[sje at cup dot hp dot com]

------- Comment #7 from sje at cup dot hp dot com  2009-10-23 18:52 -------
I haven't had a chance to test it on PA yet but it fixes the problem on
Itanium.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700

[Bug debug/41700] g++.dg/debug/dwarf2/icf.C

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #8 from dave at hiauly1 dot hia dot nrc dot ca  2009-10-23 19:56 -------
Subject: Re:  g++.dg/debug/dwarf2/icf.C

> I haven't had a chance to test it on PA yet but it fixes the problem on
> Itanium.

It fixes the test on hppa64-hp-hpux11.11.  Will test hppa2.0w-hp-hpux11.11
tonight.

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700

[Bug debug/41700] g++.dg/debug/dwarf2/icf.C

[ccoutant at gcc dot gnu dot org]

------- Comment #9 from ccoutant at gcc dot gnu dot org  2009-10-29 18:13 -------
Subject: Bug 41700

Author: ccoutant
Date: Thu Oct 29 18:13:27 2009
New Revision: 153719

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153719
Log:
gcc/ChangeLog:
        PR debug/41700
        * dwarf2out.c (dwarf2_debug_hooks): Add entries for new hook (two
        locations in the source).
        (store_vcall_insn): New function.
        (lookup_vcall_insn): New function.
        (dwarf2out_virtual_call_token): Use store_vcall_insn.
        (dwarf2out_copy_call_info): New function.
        (dwarf2out_virtual_call): Use lookup_vcall_insn.
        * emit-rtl.c (try_split): Call copy_call_info debug hook.
        * debug.h (struct gcc_debug_hooks): Add copy_call_info hook.
        * debug.c (do_nothing_debug_hooks): Add dummy entry for new hook.
        (debug_nothing_rtx_rtx): New dummy hook.
        * dbxout.c (dbx_debug_hooks): Add dummy entry for new hook.
        (xcoff_debug_hooks): Likewise.
        * sdbout.c (sdb_debug_hooks): Likewise.
        * vmsdbgout.c (vmsdbg_debug_hooks): Likewise.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dbxout.c
    trunk/gcc/debug.c
    trunk/gcc/debug.h
    trunk/gcc/dwarf2out.c
    trunk/gcc/emit-rtl.c
    trunk/gcc/sdbout.c
    trunk/gcc/vmsdbgout.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700

[Bug debug/41700] g++.dg/debug/dwarf2/icf.C

[sje at cup dot hp dot com]

------- Comment #10 from sje at cup dot hp dot com  2009-12-02 17:20 -------
This bug appears to be fixed on all my PA and IPF targets.
Closing out as fixed.


-- 

sje at cup dot hp dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41700