[Bug c++/65277] New: ice in get_untransformed

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* [Bug c++/65277] New: ice in get_untransformed_body with -O2
@ 2015-03-02 13:52 dcb314 at hotmail dot com
  2015-03-02 14:02 ` [Bug c++/65277] [5 Regression] " rguenth at gcc dot gnu.org
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: dcb314 at hotmail dot com @ 2015-03-02 13:52 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65277

            Bug ID: 65277
           Summary: ice in get_untransformed_body with -O2
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com

The gcc/testsuite case g++.dg/inherit/covariant18.C,
when compiled by trunk dated 20150301 with -O2, does this:

bug188.cc:41:1: internal compiler error: in get_untransformed_body, at
cgraph.c:
3113
 }
 ^
0x8faead cgraph_node::get_untransformed_body()
    ../../src/trunk/gcc/cgraph.c:3113
0x90560f cgraph_node::expand()
    ../../src/trunk/gcc/cgraphunit.c:1850
0x906e58 expand_all_functions
    ../../src/trunk/gcc/cgraphunit.c:2014
0x906e58 symbol_table::compile()
    ../../src/trunk/gcc/cgraphunit.c:2367
0x908977 symbol_table::finalize_compilation_unit()
    ../../src/trunk/gcc/cgraphunit.c:2444
0x6d901c cp_write_global_declarations()
    ../../src/trunk/gcc/cp/decl2.c:4754


^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug c++/65277] [5 Regression] ice in get_untransformed_body with -O2
  2015-03-02 13:52 [Bug c++/65277] New: ice in get_untransformed_body with -O2 dcb314 at hotmail dot com
@ 2015-03-02 14:02 ` rguenth at gcc dot gnu.org
  2015-03-02 14:43 ` ktietz at gcc dot gnu.org
                   ` (4 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-03-02 14:02 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65277

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
                 CC|                            |hubicka at gcc dot gnu.org
   Target Milestone|---                         |5.0
            Summary|ice in                      |[5 Regression] ice in
                   |get_untransformed_body with |get_untransformed_body with
                   |-O2                         |-O2


^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug c++/65277] [5 Regression] ice in get_untransformed_body with -O2
  2015-03-02 13:52 [Bug c++/65277] New: ice in get_untransformed_body with -O2 dcb314 at hotmail dot com
  2015-03-02 14:02 ` [Bug c++/65277] [5 Regression] " rguenth at gcc dot gnu.org
@ 2015-03-02 14:43 ` ktietz at gcc dot gnu.org
  2015-03-02 15:24 ` mpolacek at gcc dot gnu.org
                   ` (3 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: ktietz at gcc dot gnu.org @ 2015-03-02 14:43 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65277

Kai Tietz <ktietz at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-03-02
                 CC|                            |ktietz at gcc dot gnu.org,
                   |                            |maxim at trivialbugs dot com
     Ever confirmed|0                           |1

--- Comment #1 from Kai Tietz <ktietz at gcc dot gnu.org> ---
Issue seems to be happend in expand_all_functions.  In prior versions we called
expand_function, but now we are calling directly expand ().  Expand () itself
makes use of function get_untransformed_body, which checks for in-LTO-mode,
which of course fails.
Anyway the most funny thing here is that this change is not mentioned in any
ChangeLog.  It is caused by r214422


^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug c++/65277] [5 Regression] ice in get_untransformed_body with -O2
  2015-03-02 13:52 [Bug c++/65277] New: ice in get_untransformed_body with -O2 dcb314 at hotmail dot com
  2015-03-02 14:02 ` [Bug c++/65277] [5 Regression] " rguenth at gcc dot gnu.org
  2015-03-02 14:43 ` ktietz at gcc dot gnu.org
@ 2015-03-02 15:24 ` mpolacek at gcc dot gnu.org
  2015-03-02 15:58 ` ktietz at gcc dot gnu.org
                   ` (2 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2015-03-02 15:24 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65277

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mpolacek at gcc dot gnu.org

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
221040(In reply to Kai Tietz from comment #1)
> It is caused by r214422

No, I think this started with r221040.


^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug c++/65277] [5 Regression] ice in get_untransformed_body with -O2
  2015-03-02 13:52 [Bug c++/65277] New: ice in get_untransformed_body with -O2 dcb314 at hotmail dot com
                   ` (2 preceding siblings ...)
  2015-03-02 15:24 ` mpolacek at gcc dot gnu.org
@ 2015-03-02 15:58 ` ktietz at gcc dot gnu.org
  2015-03-02 23:29 ` hubicka at gcc dot gnu.org
  2015-03-03 13:07 ` [Bug ipa/65277] " marxin at gcc dot gnu.org
  5 siblings, 0 replies; 7+ messages in thread
From: ktietz at gcc dot gnu.org @ 2015-03-02 15:58 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65277

--- Comment #3 from Kai Tietz <ktietz at gcc dot gnu.org> ---
(In reply to Marek Polacek from comment #2)
> 221040(In reply to Kai Tietz from comment #1)
> > It is caused by r214422
> 
> No, I think this started with r221040.

Yes, it got shown with r221040.  Nevertheless code-change mentioned before
happend in r214256 (svn blame lied).  So I am testing right now:

Index: cgraphunit.c
===================================================================
--- cgraphunit.c        (Revision 221103)
+++ cgraphunit.c        (Arbeitskopie)
@@ -1847,7 +1847,8 @@ cgraph_node::expand (void)
   announce_function (decl);
   process = 0;
   gcc_assert (lowered);
-  get_untransformed_body ();
+  if (in_lto_p)
+    get_untransformed_body ();

   /* Generate RTL for the body of DECL.  */


^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug c++/65277] [5 Regression] ice in get_untransformed_body with -O2
  2015-03-02 13:52 [Bug c++/65277] New: ice in get_untransformed_body with -O2 dcb314 at hotmail dot com
                   ` (3 preceding siblings ...)
  2015-03-02 15:58 ` ktietz at gcc dot gnu.org
@ 2015-03-02 23:29 ` hubicka at gcc dot gnu.org
  2015-03-03 13:07 ` [Bug ipa/65277] " marxin at gcc dot gnu.org
  5 siblings, 0 replies; 7+ messages in thread
From: hubicka at gcc dot gnu.org @ 2015-03-02 23:29 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65277

--- Comment #4 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
get_untransformed_body should turn itself into noop in !in_lto_p compilation as
all function bodies have DECL_RESULT. (it probably deserves comment, but that
way we check if the body was read)

Formatting is off:

  for (i = new_order_pos - 1; i >= 0; i--)
    {
      node = order[i];

      if (node->process)
        {
     expanded_func_count++;
     if(node->tp_first_run)
       profiled_func_count++;

    if (symtab->dump_file)
          fprintf (symtab->dump_file,
                   "Time profile order in expand_all_functions:%s:%d\n",
                   node->asm_name (), node->tp_first_run);
          node->process = 0;
          node->expand ();
        }
    }

but actual code makes sense. Node in question is:
_ZTch0_v0_n40_N3Ent4ThisEv/7 (virtual Ent& Ent::_ZTch0_v0_n40_N3Ent4ThisEv())
@0x7ffff6c5d620
  Type: function
  Body removed by symtab_remove_unreachable_nodes
  Visibility: externally_visible public weak comdat comdat_group:_ZN3Ent4ThisEv
one_only section:.text._ZN3Ent4ThisEv (implicit_section) virtual artificial
  Same comdat group as: _ZN3Ent4ThisEv/5
  References: 
  Referring: 
  Availability: not_available
  First run: 0
  Function flags: icf_merged
  Called by: 
  Calls: 

it was removed, so it is wrong that we try to output it.

The removal happens in ipa-icf and it is based on
cgraph_can_remove_if_no_direct_calls_p being wrong - if symbol is in comdat
group removing all direct calls to it may not make it removable if other
symbols hold it around... Will fix that.

^ permalink raw reply	[flat|nested] 7+ messages in thread

* [Bug ipa/65277] [5 Regression] ice in get_untransformed_body with -O2
  2015-03-02 13:52 [Bug c++/65277] New: ice in get_untransformed_body with -O2 dcb314 at hotmail dot com
                   ` (4 preceding siblings ...)
  2015-03-02 23:29 ` hubicka at gcc dot gnu.org
@ 2015-03-03 13:07 ` marxin at gcc dot gnu.org
  5 siblings, 0 replies; 7+ messages in thread
From: marxin at gcc dot gnu.org @ 2015-03-03 13:07 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65277

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |marxin at gcc dot gnu.org

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
With current trunk, the testcase doesn't ICE for me.
Fixed in revision r221134.

Martin
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Subject: [Bug ipa/65277] [5 Regression] ice in get_untransformed_body with -O2
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65277

Martin Liška <marxin at gcc dot gnu.org> changed:

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

--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
Fixed in 5.0.
>From gcc-bugs-return-479156-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Mar 03 13:10:00 2015
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Subject: [Bug target/65297] [5 Regression] ICE (in get_untransformed_body, at cgraph.c:3113) on arm-linux-gnueabihf
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65297

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |marxin at gcc dot gnu.org
         Resolution|---                         |DUPLICATE

--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Duplicate.

*** This bug has been marked as a duplicate of bug 65277 ***
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Subject: [Bug ipa/65277] [5 Regression] ice in get_untransformed_body with -O2
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65277

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |doko at gcc dot gnu.org

--- Comment #7 from Martin Liška <marxin at gcc dot gnu.org> ---
*** Bug 65297 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-479159-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Mar 03 13:16:00 2015
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Subject: [Bug ipa/65287] [5 Regression] Current trunk ICE in address_matters_p, at symtab.c:1908
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65287

Martin Liška <marxin at gcc dot gnu.org> changed:

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----------------------------------------------------------------------------
                 CC|                            |doko at gcc dot gnu.org

--- Comment #7 from Martin Liška <marxin at gcc dot gnu.org> ---
*** Bug 65288 has been marked as a duplicate of this bug. ***
>From gcc-bugs-return-479158-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Mar 03 13:15:59 2015
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Subject: [Bug target/65288] [5 Regression] ICE (in address_matters_p, at symtab.c:1908) on powerpc64le-linux-gnu
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65288

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Duplicate.

*** This bug has been marked as a duplicate of bug 65287 ***
>From gcc-bugs-return-479160-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Mar 03 13:34:17 2015
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From: "ktietz at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/15212] [4.8/4.9/5 Regression] bootstrap fails on interix3
Date: Tue, 03 Mar 2015 13:34:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: bootstrap
X-Bugzilla-Version: 3.4.0
X-Bugzilla-Keywords: build
X-Bugzilla-Severity: normal
X-Bugzilla-Who: ktietz at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Priority: P5
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X-Bugzilla-Target-Milestone: 4.8.5
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Message-ID: <bug-15212-4-4WxvQta0Mo@http.gcc.gnu.org/bugzilla/>
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id\x15212

Kai Tietz <ktietz at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |ktietz at gcc dot gnu.org
         Resolution|---                         |WONTFIX

--- Comment #48 from Kai Tietz <ktietz at gcc dot gnu.org> ---
The Interix target got obsoleted at 4.6 (see
https://gcc.gnu.org/gcc-4.6/changes.html ).
Therefore I close this bug as WONTFIX.  If status for Interix changes in
future, feel free to reopen this bug.


^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2015-03-03 13:07 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-03-02 13:52 [Bug c++/65277] New: ice in get_untransformed_body with -O2 dcb314 at hotmail dot com
2015-03-02 14:02 ` [Bug c++/65277] [5 Regression] " rguenth at gcc dot gnu.org
2015-03-02 14:43 ` ktietz at gcc dot gnu.org
2015-03-02 15:24 ` mpolacek at gcc dot gnu.org
2015-03-02 15:58 ` ktietz at gcc dot gnu.org
2015-03-02 23:29 ` hubicka at gcc dot gnu.org
2015-03-03 13:07 ` [Bug ipa/65277] " marxin at gcc dot gnu.org

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