libgcc: strange optimization

[Hans-Peter Nilsson]

On Thu, 4 Aug 2011, Andreas Schwab wrote:
> Hans-Peter Nilsson <hp@bitrange.com> writes:
>
> > To make sure, it'd be nice if someone could perhaps grep an
> > entire GNU/Linux-or-other distribution including the kernel for
> > uses of asm-declared *local* registers that don't directly feed
> > into asms and not being the stack-pointer?
>
> One frequent candidate is the global pointer.

Yes, that too, but it's usually fixed isn't it?  What I really
meant was "not being a fixed register" but I don't think many
willing to grep a whole distro can tell which registers in which
gcc port are fixed and remember to look for uses of
"-ffixed-reg-".

brgds, H-P