ColdFire soft-float optimizations

[Jim Wilson]

Peter Barada wrote:
> As an example, for the absolute value of a SPFP value, the sign bit can
> be cleared via an integer instruction instead of having to call out to
> the FP library.  This would be valid for all normal SPFP values and
> infinity.

This is valid for all numbers, and many targets, including the m68k 
port, already do this by default.  The IEEE FP standard explicitly says 
that abs can be implemented as a non-arithmetic operation, and hence 
there is no need to worry about NaNs here.  This is in the appendix.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com