On Fri, Aug 13, 2010 at 4:16 PM, H. Peter Anvin <hpa at zytor.com> wrote: > I guess my real question was "is this something IA64 could benefit from > and/or could we make the IA64 code more similar to the x86 bits"? If Eric's recollection about the "weird floating point fixup routines"[1] performance issues are correct - then ia64 won't want to do this. -Tony [1] more usually called FPSWA - floating point software assist - which handle a bunch or corner cases in denormalized floating point values that the h/w doesn't cover.
