Description of problem:
GCC chokes on some C++ code.

Version-Release number of selected component (if applicable):
gcc-c++-4.1.0-3

How reproducible:
Every time.

Steps to reproduce:
Compile attached source with the following command:
        g++ -c nmtest.cpp -funroll-loops -O2 -o nmtest.o

  
Actual results:
Crash with the following output:
nmtest.cpp: In function âint main()â:
nmtest.cpp:293: internal compiler error: in get_loop_body, at cfgloop.c:799
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugzilla.redhat.com/bugzilla> for instructions.
Preprocessed source stored into /tmp/ccGuOWMs.out file, please attach this to
your bugreport.


Expected results:
Compiled code.

Additional info:
This is using ccache but I don't expect that it has anything to do with this.  I
have wiped the cache and rebuilt from scratch with the same results.

I will attach some code in a follow up comment.  The preprocessor output is
attached here.