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Re: FWD: FLOATING-POINT CONSISTENCY, -FFLOAT-STORE, AND X86
- To: hjstein at bfr dot co dot il
- Subject: Re: FWD: FLOATING-POINT CONSISTENCY, -FFLOAT-STORE, AND X86
- From: Craig Burley <burley at gnu dot org>
- Date: Sat, 19 Dec 1998 03:29:33 -0500 (EST)
- Cc: toon at moene dot indiv dot nluug dot nl, egcs at cygnus dot com
- Cc: burley at gnu dot org
>Those trying to port to ix86 *must* be porting code that doesn't
>expect 80 bit cpu registers & therefore would actually produce results
>closer to the original code with the FPU set to 64 bits.
Yup. And will all the libraries they use -- perhaps separately
ported -- will work that way as well?
And what about those trying to port to *gcc* (or g77) from some
*other* compiler on the ix86, where the other compiler made
proper use of the x86 (by doing 80-bit spills)?
But, never mind, I've withdrawn my proposal to try and offer 80-bit
spills, so such users should just be told to rewrite their code --
after taking a few more classes on numerical analysis.
tq vm, (burley)