[Bug c++/53308] New: AIX 5.3 segmentation fault with basic_ofstream, pthread and -O2

[askees at appfluent dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53308

             Bug #: 53308
           Summary: AIX 5.3 segmentation fault with basic_ofstream,
                    pthread and -O2
    Classification: Unclassified
           Product: gcc
           Version: 4.4.7
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: ask...@appfluent.com


Created attachment 27365
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27365
This is the preprocessed file

On AIX 5.3, this program has a segmentation fault when built using both pthread
and O2.  It runs normally when that particular combination is not used.

Source file: t.cpp

#include <fstream>
int main(int argc, char** argv)
{
  std::basic_ofstream<char> f("a.txt", std::ios::out);
  return 0;
}


g++ -v 

Using built-in specs.
Target: powerpc-ibm-aix5.3.0.0
Configured with: /home/askees/gcc/gcc-4.4.7/configure
--prefix=/usr/local/gnu/gcc/gcc-4.4.7 --with-gmp=/usr/local/gnu/gmp/gmp-5.0.1
--with-mpfr=/usr/local/gnu/mpfr/mpfr-2.4.2 --enable-threads=posix
--enable-languages=c,c++ --with-as=/usr/bin/as --with-ld=/usr/bin/ld
--host=powerpc-ibm-aix5.3.0.0 --target=powerpc-ibm-aix5.3.0.0
--build=powerpc-ibm-aix5.3.0.0
Thread model: aix
gcc version 4.4.7 (GCC)


Compile

g++ t.cpp -O2 -L/usr/lib/threads -pthread