question regarding asm()

[Joern Rennecke]

> resulting compiler produced slightly better code, but died a few times with the
> "forbidden register was spilled" message.  Most of the time, GCC was trying to
> spill the (unneeded) frame pointer.  I applied a small patch to tell reload that
> it's OK to spill the FP when it is not needed and now I'm left with only a few

You should rather use an extra hard register number for the frame pointer,
and then eliminate this frame pointer either to the hard frame pointer or
to the stack.