ppc64 floating point usage [was Re: PPC64 Compiler bug !!]

[David Edelsohn]

>>>>> Jakub Jelinek writes:

Jakub> I guess best would be if GCC could dynamically switch the reg alloc orders
Jakub> based on whether FPRs will be used anyway or whether current function is
Jakub> pure integer code.

	Yes.  The difficulty is determining whether a function is pure
integer code.  Even more, one does not want to simply change the alloc
order but mark FPRs as fixed for pure integer code, which is what
-msoft-float does.

David