[Issue 13474] Discard excess precision for float and double (x87)

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13474

Martin Nowak <code at dawg.eu> changed:

           What    |Removed                     |Added
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                 CC|                            |code at dawg.eu

--- Comment #21 from Martin Nowak <code at dawg.eu> ---
(In reply to yebblies from comment #18)
> Maybe.  The logic in here does seem sound, although again I'm not an expert.
> 
> http://dlang.org/d-floating-point.html
> 
> So the idea is that strict double rounding would be a big performance hit

That doesn't make too much sense, and we shouldn't adapt the language to an x87
"coprocessor", using the old FPU nowadays is a performance hit and should be
avoided unless you absolutely need the extra 16-bits of precision.

As C get's away with it's default behavior, I don't think need to make
-ffast-math our default.

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