Johan Råde wrote:
Markus Schöpflin wrote:
You can't leave out -ieee as the Alpha needs some special compiler help for conforming IEEE math handling, the processor itself is only 'mostly conformant'.
What happens if you leave out -ieee?
I forgot to add something... from the compiler man page: -ieee Support all portable features of the IEEE Standard for Binary Floating-Point Arithmetic (ANSI/IEEE Standard 754-1985), including the treatment of denormalized numbers, NaNs, infinities, and the handling of error cases. This flag also sets the _IEEE_FP macro. To flush floating point underflows to zero, add the -underflow_to_zero option. -underflow_to_zero When used with the -ieee option, directs the compiler to flush float- ing point underflows to zero. Markus