[Bug c++/47503] New: [4.6 Regression] [C++0x] ICE: in adjust_temp_type, at cp/semantics.c:5876 with -fno-elide-constructors

[Bug c++/47503] New: [4.6 Regression] [C++0x] ICE: in adjust_temp_type, at cp/semantics.c:5876 with -fno-elide-constructors

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47503

           Summary: [4.6 Regression] [C++0x] ICE: in adjust_temp_type, at
                    cp/semantics.c:5876 with -fno-elide-constructors
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


Created attachment 23147
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23147
reduced testcase

Compiler output:
$ gcc -std=c++0x -fno-elide-constructors testcase.C 
testcase.C: In constructor 'B::B(A&)':
testcase.C:10:20:   in constexpr expansion of '((B*)this)->B::a.A::A((*(const
A*)aa))'
testcase.C:10:20: internal compiler error: in adjust_temp_type, at
cp/semantics.c:5876
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r169326 - crash
4.5 r168785 - OK

[Bug c++/47503] [4.6 Regression] [C++0x] ICE: in adjust_temp_type, at cp/semantics.c:5876 with -fno-elide-constructors

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47503

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011.01.28 03:26:48
                 CC|                            |jason at redhat dot com
   Target Milestone|---                         |4.6.0
     Ever Confirmed|0                           |1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-01-28 03:26:48 UTC ---
This is caused by revision 166167:

http://gcc.gnu.org/ml/gcc-cvs/2010-11/msg00053.html

[Bug c++/47503] [4.6 Regression] [C++0x] ICE: in adjust_temp_type, at cp/semantics.c:5876 with -fno-elide-constructors

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47503

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1

[Bug c++/47503] [4.6 Regression] [C++0x] ICE: in adjust_temp_type, at cp/semantics.c:5876 with -fno-elide-constructors

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47503

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2011-02-19 22:39:53 UTC ---
Author: jason
Date: Sat Feb 19 22:39:50 2011
New Revision: 170330

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170330
Log:
    PR c++/47503
    * semantics.c (cxx_eval_call_expression): Shortcut trivial copy.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/regress/no-elide1.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/semantics.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/47503] [4.6 Regression] [C++0x] ICE: in adjust_temp_type, at cp/semantics.c:5876 with -fno-elide-constructors

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47503

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

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

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-02-19 23:33:18 UTC ---
Should be fixed then.