[Bug c++/48909] New: [C++0x]internal compiler error: in cxx_eval_conditional_expression, at cp/semantics.c:6213

[Bug c++/48909] New: [C++0x]internal compiler error: in cxx_eval_conditional_expression, at cp/semantics.c:6213

[sscrisk at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48909

           Summary: [C++0x]internal compiler error: in
                    cxx_eval_conditional_expression, at
                    cp/semantics.c:6213
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: sscrisk@gmail.com


Souce:

constexpr int const * is_sorted_until(int const * first, int const * last)
{
 return first == last || first + 1 == last ? last
  : (*(first + 1) < *first) != false ? first + 1
  : is_sorted_until(first + 1, last);
}

int main()
{
 static constexpr int array[2] = {0, 1};
 constexpr int const * last = is_sorted_until(array, array + 2);
}


Compile errors:

a.cpp: In function 'int main()':
a.cpp:11:56:   in constexpr expansion of 'is_sorted_until(((const int*)(& b)),
(((const int*)(& b)) + 8u))'
a.cpp:11:56: internal compiler error: in cxx_eval_conditional_expression, at
cp/semantics.c:6213
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

[Bug c++/48909] [C++0x] ICE in cxx_eval_conditional_expression, at cp/semantics.c:6213

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48909

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011.05.06 09:26:05
                 CC|                            |jason at gcc dot gnu.org
            Summary|[C++0x]internal compiler    |[C++0x] ICE in
                   |error: in                   |cxx_eval_conditional_expres
                   |cxx_eval_conditional_expres |sion, at
                   |sion, at                    |cp/semantics.c:6213
                   |cp/semantics.c:6213         |
     Ever Confirmed|0                           |1

--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-05-06 09:26:05 UTC ---
Confirmed mainline and 4_6-branch.

[Bug c++/48909] [C++0x] ICE in cxx_eval_conditional_expression, at cp/semantics.c:6213

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48909

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

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

[Bug c++/48909] [C++0x] ICE in cxx_eval_conditional_expression, at cp/semantics.c:6213

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48909

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2011-05-06 21:57:52 UTC ---
Author: jason
Date: Fri May  6 21:57:49 2011
New Revision: 173511

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173511
Log:
    PR c++/48909
    * semantics.c (cxx_eval_conditional_expression): Check
    integer_zerop/onep instead.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/constexpr-condition2.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/semantics.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/48909] [C++0x] ICE in cxx_eval_conditional_expression, at cp/semantics.c:6213

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48909

--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2011-05-06 21:58:47 UTC ---
Author: jason
Date: Fri May  6 21:58:44 2011
New Revision: 173516

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173516
Log:
    PR c++/48909
    * semantics.c (cxx_eval_conditional_expression): Check
    integer_zerop/onep instead.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/g++.dg/cpp0x/constexpr-condition2.C
Modified:
    branches/gcc-4_6-branch/gcc/cp/ChangeLog
    branches/gcc-4_6-branch/gcc/cp/semantics.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog

[Bug c++/48909] [C++0x] ICE in cxx_eval_conditional_expression, at cp/semantics.c:6213

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48909

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.6.1

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> 2011-05-06 22:00:58 UTC ---
Fixed for 4.6.1.