[Bug c++/50972] New: [C++0x] ICE on undeclared identifier

[jarrydb at cse dot unsw.edu.au]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50972

             Bug #: 50972
           Summary: [C++0x] ICE on undeclared identifier
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: jarrydb@cse.unsw.edu.au


Created attachment 25698
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25698
triggers an internal compiler error

The attached code fails causes an internal compiler error. I reduced it to
about 500 lines. The error now isn't the original error, but they both seem to
come from an undeclared identifier. The relevant line is:

ice-undeclared.ii:275:7: error: ‘_S_propagate_on_swap’ was not declared in this
scope

The error reported is:

ice-undeclared.ii: At global scope:
ice-undeclared.ii:473:21: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Compiled with:

g++ -std=gnu++11 ice-undeclared.ii -c


gcc -v

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/jarrydb/current/soft/install-latest/libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /home/jarrydb/current/soft/src/gcc-git/configure
--prefix=/home/jarrydb/current/soft/install-latest --disable-multilib
--enable-languages=c,c++
Thread model: posix
gcc version 4.7.0 20111102 (experimental) (GCC)