Predictive commoning miscompiles 482.sphinx3 in SPEC CPU 2006

[H. J. Lu]

The predictive commoning patch:

http://gcc.gnu.org/ml/gcc-patches/2007-05/msg01061.html

miscompiles 482.sphinx3 in SPEC CPU 2006 with -O2 -ffast-math on
Linux/x86-64.  Zdenek, do you have any ideas?

BTW, we are working on a small testcase.


H.J.