This is another small H8 cleanup. This time we're killing a peephole2
that doesn't seem terribly useful. The peephole in question narrows a
SImode comparison to QImode when it's fed by an (and (xor)) and the
result is the same in either mode. I couldn't get this to trigger
within libgcc, newlib
Another batch of cleanups/consolidations.
First, the move patterns. This consolidates the movXX expanders -- this
can slightly change the generated code on the H8/SX due to an
inconsistency in the old movhi expander that is fixed by this change.
The expanders for logicals and basic arithmetic w
