On Fri, Jun 01, 2007 at 09:37:54AM -0700, H. J. Lu wrote: > 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? >
Something is wrong. Predictive commoning is supposed to be turned on at -O3. But it definitely afffects -O2. Why? H.J.
