On Tue, Dec 13, 2005 at 09:25:45PM +0000, Joern RENNECKE wrote: > >While we could use pushhi2 insn > >(would need to use pre_modify rather than pre_dec etc.), it wouldn't > >buy us anything. > > > Presumably, it would prevent a partial register stall.
Only if we use the real pushw instruction. But in that case
unwind info can't represent the stack movement.
Jakub
