Hello! > The following proposed patch fixed the problem. Note that for Atom, > only the CWD instruction is slow with 5 cycle latency, the rest sign > extension instructions are fast -- the fix for Atom needs finer grain > control and can be done separately. > > 2010-11-30 Xinliang David Li <davi...@google.com> > > * config/i386/i386.c: Allow sign extend instructions (cltd etc) > on modern CPUs.
OK. Thanks, Uros.