On Wed, May 03, 2000 at 09:54:01PM +0000, David Wragg <dpw@doc.ic.ac.uk> wrote:
> It's actually possible to compile this to code that doesn't use FP
> instructions. To do the trick with three instructions on x86:
>
> However, I don't know of any version of gcc/egcs which performs this
> optimization
A C compiler couldn't do this transformation since your code gives
different results (and would thus be incorrect). It is up to the
programmer to decide wether the error is small enough to warrant slightly
"incorrect" results.
The transformation could be made to work in some cases, however.
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---==---(_)__ __ ____ __ Marc Lehmann +--
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The choice of a GNU generation |
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