[Bug c++/61959] New: "internal compiler error: Segmentation fault" when building Mozilla code

[Bug c++/61959] New: "internal compiler error: Segmentation fault" when building Mozilla code

[botond at mozilla dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

            Bug ID: 61959
           Summary: "internal compiler error: Segmentation fault" when
                    building Mozilla code
           Product: gcc
           Version: 4.7.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: botond at mozilla dot com

Created attachment 33208
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33208&action=edit
preprocessed source, zipped

I ran into an internal compiler error while trying to compile the Gecko
codebase with the patch at [1].

The output was:

/home/botond/dev/mozilla/refactoring/dom/events/EventStateManager.cpp:5609:1:
internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.7/README.Bugs> for instructions.
Preprocessed source stored into /tmp/cc7rD5Nc.out file, please attach this to
your bugreport.

Attached is the preprocessed source; I had to zip it to stay within the
attachment size limit.

My GCC version is 4.7.3; OS is Linux Mint 15 (Olivia).

Please let me know if there is any further informative I can provide.

[1] https://bug923512.bugzilla.mozilla.org/attachment.cgi?id=8464279

[Bug c++/61959] "internal compiler error: Segmentation fault" when building Mozilla code

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>See <file:///usr/share/doc/gcc-4.7/README.Bugs> for instructions.

[Bug c++/61959] "internal compiler error: Segmentation fault" when building Mozilla code

[botond at mozilla dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

--- Comment #2 from Botond Ballo <botond at mozilla dot com> ---
(In reply to Andrew Pinski from comment #1)
> >See <file:///usr/share/doc/gcc-4.7/README.Bugs> for instructions.

Here is the output of g++ -v:

Using built-in specs.
COLLECT_GCC=/usr/bin/g++-4.7.real
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.7/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
4.7.3-1ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs
--enable-languages=c,c++,go,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.7 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.7 --libdir=/usr/lib --enable-nls
--with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin
--with-system-zlib --enable-objc-gc --with-cloog --enable-cloog-backend=ppl
--disable-cloog-version-check --disable-ppl-version-check --enable-multiarch
--disable-werror --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --with-tune=generic --enable-checking=release
--build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-1ubuntu1)

Here is the complete command that triggers the bug:

  g++ -c -std=c++11 esm-ice.ii

Anything else I missed?

[Bug c++/61959] "internal compiler error: Segmentation fault" when building Mozilla code

[botond at mozilla dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

Botond Ballo <botond at mozilla dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|4.7.3                       |4.9.0

--- Comment #3 from Botond Ballo <botond at mozilla dot com> ---
Tried this with 4.9.0. I still get an ICE, but the error message is more
informative now:

/home/botond/dev/mozilla/refactoring/dom/events/EventStateManager.cpp:5609:1:
internal compiler error: in tree_to_uhwi, at tree.h:3657
0xb22aab tree_to_uhwi
        ../../src/gcc/tree.h:3657
0xb22aab output_constructor_regular_field
        ../../src/gcc/varasm.c:4894
0xb22aab output_constructor
        ../../src/gcc/varasm.c:5231
0xb21c7e assemble_variable(tree_node*, int, int, int)
        ../../src/gcc/varasm.c:2139
0xb238a5 varpool_assemble_decl(varpool_node*)
        ../../src/gcc/varpool.c:455
0x6de59d output_in_order
        ../../src/gcc/cgraphunit.c:2010
0x6de59d compile()
        ../../src/gcc/cgraphunit.c:2247
0x6de864 finalize_compilation_unit()
        ../../src/gcc/cgraphunit.c:2329
0x593f1b cp_write_global_declarations()
        ../../src/gcc/cp/decl2.c:4611

[Bug c++/61959] "internal compiler error: in tree_to_uhwi, at tree.h:3657" when building Mozilla code

[botond at mozilla dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

--- Comment #4 from Botond Ballo <botond at mozilla dot com> ---
Reduced code that triggers the ICE:


template <class T, class Sub, class Coord>
struct BasePoint {
  Coord x, y;

  constexpr BasePoint(Coord aX, Coord aY) : x(aX), y(aY) {}
};

template <class T, class Sub>
struct BaseCoord {
  T value;

  explicit constexpr BaseCoord(T aValue) : value(aValue) {}
};

template<class units>
struct IntCoordTyped :
  public BaseCoord< int, IntCoordTyped<units> >,
  public units {

  typedef BaseCoord< int, IntCoordTyped<units> > Super;

  constexpr IntCoordTyped(int aValue) : Super(aValue) {}
};

template<class units>
struct IntPointTyped :
  public BasePoint< int, IntPointTyped<units>, IntCoordTyped<units> >,
  public units {

  typedef IntCoordTyped<units> Coord;
  typedef BasePoint< int, IntPointTyped<units>, IntCoordTyped<units> > Super;

  constexpr IntPointTyped(int aX, int aY) : Super(Coord(aX), Coord(aY)) {}
};

struct LayoutDevicePixel {};
typedef IntPointTyped<LayoutDevicePixel> LayoutDeviceIntPoint;

static const LayoutDeviceIntPoint kInvalidRefPoint =
LayoutDeviceIntPoint(-1,-1);

[Bug middle-end/61959] [4.8/4.9/4.10 Regression] ICE: in tree_to_uhwi, at tree.h:3657 when building Mozilla code

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-07-30
                 CC|                            |trippels at gcc dot gnu.org
          Component|c++                         |middle-end
   Target Milestone|---                         |4.8.4
            Summary|"internal compiler error:   |[4.8/4.9/4.10 Regression]
                   |in tree_to_uhwi, at         |ICE: in tree_to_uhwi, at
                   |tree.h:3657" when building  |tree.h:3657 when building
                   |Mozilla code                |Mozilla code
     Ever confirmed|0                           |1

--- Comment #5 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
A bit further reduced:

markus@x4 tmp % cat foo.ii
template <class Coord> struct BasePoint
{
  Coord x, y;
  constexpr BasePoint (Coord, Coord) : x (0), y (0) {}
};
template <class T> struct BaseCoord
{
  int value;
  constexpr BaseCoord (T) : value (1) {}
};
template <class units> struct IntCoordTyped : BaseCoord<int>, units
{
  typedef BaseCoord Super;
  constexpr IntCoordTyped (int) : Super (0) {}
};
template <class units>
struct IntPointTyped : BasePoint<IntCoordTyped<units> >, units
{
  typedef BasePoint<IntCoordTyped<units> > Super;
  constexpr IntPointTyped (int, int) : Super (0, 0) {}
};
struct A
{
};
IntPointTyped<A> a (0, 0);

markus@x4 tmp % g++ -O2 -std=c++11 -c foo.ii
foo.ii:25:26: internal compiler error: tree check: expected field_decl, have
pointer_plus_expr in output_constructor, at varasm.c:5194
 IntPointTyped<A> a (0, 0);
                          ^
0xdb4d94 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
        ../../gcc/gcc/tree.c:9169
0xe0a9e4 tree_check
        ../../gcc/gcc/tree.h:2728
0xe0a9e4 output_constructor
        ../../gcc/gcc/varasm.c:5194
0xe02817 output_constant
        ../../gcc/gcc/varasm.c:4735
0xe0b364 assemble_variable(tree_node*, int, int, int)
        ../../gcc/gcc/varasm.c:2175
0xe0caff varpool_node::assemble_decl()
        ../../gcc/gcc/varpool.c:544
0xe0d0c5 varpool_node::assemble_decl()
        ../../gcc/gcc/varpool.c:516
0xe0d0c5 varpool_node::output_variables()
        ../../gcc/gcc/varpool.c:684
0x844a7c compile()
        ../../gcc/gcc/cgraphunit.c:2262
0x845184 finalize_compilation_unit()
        ../../gcc/gcc/cgraphunit.c:2338
0x63330a cp_write_global_declarations()
        ../../gcc/gcc/cp/decl2.c:4684
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.

[Bug c++/61959] [4.8/4.9/4.10 Regression] ICE: in tree_to_uhwi, at tree.h:3657 when building Mozilla code

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|middle-end                  |c++

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
The constructor is invalid:

(gdb) p debug_generic_expr (exp)
{.D.2102={.x={.D.2071={.value=1}}, .y={.D.2071={.value=1}}}, .(struct A *) this
+ 8={}}

the element index has to be a FIELD_DECL - 'this + 8' is not allowed here.

C++ frontend issue.

[Bug c++/61959] [4.8/4.9/4.10 Regression] ICE: in tree_to_uhwi, at tree.h:3657 when building Mozilla code

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |jason at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |jason at gcc dot gnu.org

[Bug c++/61959] [4.8/4.9/4.10 Regression] ICE: in tree_to_uhwi, at tree.h:3657 when building Mozilla code

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Thu Aug  7 19:49:21 2014
New Revision: 213733

URL: https://gcc.gnu.org/viewcvs?rev=213733&root=gcc&view=rev
Log:
    PR c++/61959
    * semantics.c (cxx_eval_bare_aggregate): Handle POINTER_PLUS_EXPR.

Added:
    branches/gcc-4_9-branch/gcc/testsuite/g++.dg/cpp0x/constexpr-empty7.C
Modified:
    branches/gcc-4_9-branch/gcc/cp/ChangeLog
    branches/gcc-4_9-branch/gcc/cp/semantics.c

[Bug c++/61959] [4.8/4.9/4.10 Regression] ICE: in tree_to_uhwi, at tree.h:3657 when building Mozilla code

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

--- Comment #7 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Thu Aug  7 19:48:30 2014
New Revision: 213731

URL: https://gcc.gnu.org/viewcvs?rev=213731&root=gcc&view=rev
Log:
    PR c++/61959
    * semantics.c (cxx_eval_bare_aggregate): Handle POINTER_PLUS_EXPR.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-empty7.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/semantics.c

[Bug c++/61959] [4.8/4.9/4.10 Regression] ICE: in tree_to_uhwi, at tree.h:3657 when building Mozilla code

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

--- Comment #9 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Thu Aug  7 19:50:11 2014
New Revision: 213735

URL: https://gcc.gnu.org/viewcvs?rev=213735&root=gcc&view=rev
Log:
    PR c++/61959
    * semantics.c (cxx_eval_bare_aggregate): Handle POINTER_PLUS_EXPR.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/g++.dg/cpp0x/constexpr-empty7.C
Modified:
    branches/gcc-4_8-branch/gcc/cp/ChangeLog
    branches/gcc-4_8-branch/gcc/cp/semantics.c

[Bug c++/61959] [4.8/4.9/4.10 Regression] ICE: in tree_to_uhwi, at tree.h:3657 when building Mozilla code

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61959

Jason Merrill <jason at gcc dot gnu.org> changed:

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

--- Comment #10 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed for 4.8.4/4.9.2/trunk.