[Bug c++/57947] New: internal compiler error: Segmentation fault using extended initializer lists without -std=c++11 or -std=gnu++11

[Bug c++/57947] New: internal compiler error: Segmentation fault using extended initializer lists without -std=c++11 or -std=gnu++11

[cas43 at cs dot stanford.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57947

            Bug ID: 57947
           Summary: internal compiler error: Segmentation fault using
                    extended initializer lists without -std=c++11 or
                    -std=gnu++11
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: cas43 at cs dot stanford.edu

Program:

template <class _E>   class initializer_list {};
template <int N> struct D {D(std::initializer_list<int>) {}};
D<0> d{1, 2, 3};


Compile like this: g++ prog.cpp


Output:

prog.cpp:8:12: warning: extended initializer lists only available with
-std=c++11 or -std=gnu++11 [enabled by default]
       D<0> d{
            ^
prog.cpp:9:11: error: in C++98 ‘std::d’ must be initialized by constructor, not
by ‘{...}’
    1, 2, 3};
           ^
prog.cpp:9:11: internal compiler error: Segmentation fault
0xaac4cf crash_signal
    ../../s-4.9/gcc/toplev.c:333
0x519ce3 contains_struct_check
    ../../s-4.9/gcc/tree.h:3803
0x519ce3 convert_like_real
    ../../s-4.9/gcc/cp/call.c:6055
0x51b671 build_over_call
    ../../s-4.9/gcc/cp/call.c:6943
0x517b3b build_new_method_call_1
    ../../s-4.9/gcc/cp/call.c:7777
0x517b3b build_new_method_call(tree_node*, tree_node*, vec<tree_node*, va_gc,
vl_embed>**, tree_node*, int, tree_node**, int)
    ../../s-4.9/gcc/cp/call.c:7847
0x518d12 build_special_member_call(tree_node*, tree_node*, vec<tree_node*,
va_gc, vl_embed>**, tree_node*, int, int)
    ../../s-4.9/gcc/cp/call.c:7412
0x6657d7 expand_default_init
    ../../s-4.9/gcc/cp/init.c:1664
0x6657d7 expand_aggr_init_1
    ../../s-4.9/gcc/cp/init.c:1765
0x66835a build_aggr_init(tree_node*, tree_node*, int, int)
    ../../s-4.9/gcc/cp/init.c:1516
0x52d01d build_aggr_init_full_exprs
    ../../s-4.9/gcc/cp/decl.c:5545
0x52d01d check_initializer
    ../../s-4.9/gcc/cp/decl.c:5680
0x54006d cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
    ../../s-4.9/gcc/cp/decl.c:6349
0x6260fd cp_parser_init_declarator
    ../../s-4.9/gcc/cp/parser.c:16527
0x62673e cp_parser_simple_declaration
    ../../s-4.9/gcc/cp/parser.c:10946
0x6285a0 cp_parser_block_declaration
    ../../s-4.9/gcc/cp/parser.c:10827
0x63160b cp_parser_declaration
    ../../s-4.9/gcc/cp/parser.c:10724
0x6302dd cp_parser_declaration_seq_opt
    ../../s-4.9/gcc/cp/parser.c:10610
0x6304f0 cp_parser_namespace_body
    ../../s-4.9/gcc/cp/parser.c:15530
0x6304f0 cp_parser_namespace_definition
    ../../s-4.9/gcc/cp/parser.c:15511
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.


Version:

Using built-in specs.
COLLECT_GCC=/home/craig/new-gcc/i-4.9/bin/g++
COLLECT_LTO_WRAPPER=/home/craig/new-gcc/i-4.9/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../s-4.9/configure --prefix=/home/craig/new-gcc/i-4.9
Thread model: posix
gcc version 4.9.0 20130718 (experimental) (GCC)
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From: "cas43 at cs dot stanford.edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/57948] New: internal compiler error: in initialize_reference, at cp/call.c:9285
Date: Sun, 21 Jul 2013 03:41:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57948

            Bug ID: 57948
           Summary: internal compiler error: in initialize_reference, at
                    cp/call.c:9285
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: cas43 at cs dot stanford.edu

With this input:

struct Base {   };
struct Derived : Base
{
    struct Derived2 : Base
    {
        struct ConvertibleToBothDerivedRef
        {
            operator Derived&();
            operator Derived2&();
            void bind_lvalue_to_conv_lvalue_ambig(ConvertibleToBothDerivedRef
both)
            {
                Base &br1 = both;
            }
        };
    };
};


compiled like this:  g++ prog.cpp


I get this output:

prog.cpp: In member function ‘void
Derived::Derived2::ConvertibleToBothDerivedRef::bind_lvalue_to_conv_lvalue_ambig(Derived::Derived2::ConvertibleToBothDerivedRef)’:
prog.cpp:12:29: error: conversion from
‘Derived::Derived2::ConvertibleToBothDerivedRef’ to ‘Base&’ is ambiguous
                 Base &br1 = both;
                             ^
prog.cpp:10:18: note: candidates are:
             void bind_lvalue_to_conv_lvalue_ambig(ConvertibleToBothDerivedRef
both)
                  ^
prog.cpp:9:13: note: Derived::Derived2::ConvertibleToBothDerivedRef::operator
Derived::Derived2&()
             operator Derived2&();
             ^
prog.cpp:8:13: note: Derived::Derived2::ConvertibleToBothDerivedRef::operator
Derived&()
             operator Derived&();
             ^
prog.cpp:12:29: internal compiler error: in initialize_reference, at
cp/call.c:9285
                 Base &br1 = both;
                             ^
0x52061e initialize_reference(tree_node*, tree_node*, int, int)
    ../../s-4.9/gcc/cp/call.c:9285
0x52d9a4 grok_reference_init
    ../../s-4.9/gcc/cp/decl.c:4762
0x52d9a4 check_initializer
    ../../s-4.9/gcc/cp/decl.c:5630
0x54006d cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
    ../../s-4.9/gcc/cp/decl.c:6349
0x6260fd cp_parser_init_declarator
    ../../s-4.9/gcc/cp/parser.c:16527
0x62673e cp_parser_simple_declaration
    ../../s-4.9/gcc/cp/parser.c:10946
0x6285a0 cp_parser_block_declaration
    ../../s-4.9/gcc/cp/parser.c:10827
0x6296a0 cp_parser_declaration_statement
    ../../s-4.9/gcc/cp/parser.c:10471
0x612527 cp_parser_statement
    ../../s-4.9/gcc/cp/parser.c:9229
0x61382e cp_parser_statement_seq_opt
    ../../s-4.9/gcc/cp/parser.c:9509
0x613976 cp_parser_compound_statement
    ../../s-4.9/gcc/cp/parser.c:9463
0x624733 cp_parser_function_body
    ../../s-4.9/gcc/cp/parser.c:18257
0x624733 cp_parser_ctor_initializer_opt_and_function_body
    ../../s-4.9/gcc/cp/parser.c:18293
0x62578f cp_parser_function_definition_after_declarator
    ../../s-4.9/gcc/cp/parser.c:22271
0x60b49c cp_parser_late_parsing_for_member
    ../../s-4.9/gcc/cp/parser.c:22923
0x60b49c cp_parser_class_specifier_1
    ../../s-4.9/gcc/cp/parser.c:19016
0x60d610 cp_parser_class_specifier
    ../../s-4.9/gcc/cp/parser.c:19040
0x60d610 cp_parser_type_specifier
    ../../s-4.9/gcc/cp/parser.c:14042
0x622ad9 cp_parser_decl_specifier_seq
    ../../s-4.9/gcc/cp/parser.c:11288
0x626599 cp_parser_simple_declaration
    ../../s-4.9/gcc/cp/parser.c:10878
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.


Compiler version:

Using built-in specs.
COLLECT_GCC=/home/craig/new-gcc/i-4.9/bin/g++
COLLECT_LTO_WRAPPER=/home/craig/new-gcc/i-4.9/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../s-4.9/configure --prefix=/home/craig/new-gcc/i-4.9
Thread model: posix
gcc version 4.9.0 20130718 (experimental) (GCC)
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Subject: [Bug preprocessor/57620] Phantom terminator confuses raw string literal parsing.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idW620

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sun Jul 21 02:28:03 2013
New Revision: 201091

URL: http://gcc.gnu.org/viewcvs?rev 1091&root=gcc&view=rev
Log:
    PR preprocessor/57620
    * lex.c (lex_raw_string): Undo phase1 and phase2 transformations
    between R" and final " rather than only in between R"del( and )del".

    * c-c++-common/raw-string-2.c (s12, u12, U12, L12): Remove.
    (main): Don't test {s,u,U,L}12.
    * c-c++-common/raw-string-13.c: New test.
    * c-c++-common/raw-string-14.c: New test.
    * c-c++-common/raw-string-15.c: New test.
    * c-c++-common/raw-string-16.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/raw-string-13.c
    trunk/gcc/testsuite/c-c++-common/raw-string-14.c
    trunk/gcc/testsuite/c-c++-common/raw-string-15.c
    trunk/gcc/testsuite/c-c++-common/raw-string-16.c
Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/c-c++-common/raw-string-2.c
    trunk/libcpp/ChangeLog
    trunk/libcpp/lex.c

[Bug c++/57947] internal compiler error: Segmentation fault using extended initializer lists without -std=c++11 or -std=gnu++11

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57947

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2013-07-22
     Ever confirmed|0                           |1

--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
I can't reproduce this (with or without the std::) Looks like the error message
doesn't match the code (line #8 ?!?)

[Bug c++/57947] internal compiler error: Segmentation fault using extended initializer lists without -std=c++11 or -std=gnu++11

[cas43 at cs dot stanford.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57947

--- Comment #2 from Craig Schroeder <cas43 at cs dot stanford.edu> ---
Unfortunately that is because I tried cleaning up the test case some more after
reducing it down.  How about this:

namespace std
{
template <class _E> class initializer_list {};
template <int N> struct D {D(std::initializer_list<int>) {}};
D<0> d{1, 2, 3};
}

[Bug c++/57947] internal compiler error: Segmentation fault using extended initializer lists without -std=c++11 or -std=gnu++11

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57947

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-invalid-code
             Status|WAITING                     |NEW

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Ok, thanks.

[Bug c++/57947] internal compiler error: Segmentation fault using extended initializer lists without -std=c++11 or -std=gnu++11

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57947

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |paolo.carlini at oracle dot com
   Target Milestone|---                         |4.9.0

--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Mine.

[Bug c++/57947] internal compiler error: Segmentation fault using extended initializer lists without -std=c++11 or -std=gnu++11

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57947

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |NEW
           Assignee|paolo.carlini at oracle dot com    |unassigned at gcc dot gnu.org

--- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Not now, sorry. The issue is a bit tricky, not a straightforward error
recovery: the name initializer_list triggers magic, necessary to fully
implement the C++11 semantics. Thus the issue boils down to treating it as any
other name in C++98.

[Bug c++/57947] internal compiler error: Segmentation fault using extended initializer lists without -std=c++11 or -std=gnu++11

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57947

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |paolo.carlini at oracle dot com

--- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Ok, I think I have a way to fix this.

[Bug c++/57947] internal compiler error: Segmentation fault using extended initializer lists without -std=c++11 or -std=gnu++11

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57947

Paolo Carlini <paolo.carlini at oracle dot com> changed:

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

--- Comment #7 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed.