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Re: The state of glibc libm
On Thu, Mar 15, 2012 at 3:17 PM, Andi Kleen <andi@firstfloor.org> wrote:
>> SSE ABI entries for i?86 in glibc were rejected. ?I proposed them like
>> 4-5 years ago to make -mfpmath=sse not suck.
>
> With the new libm hopefully this can be revisited.
>
> But there's the ABI and there's the internal implementation.
>
> My point was just that relying on x87 fully again does not really make
> sense anymore in 2012.
That's true, the return value shuffle to/from the x87 stack might not be
too bad for performance, nor argument passing on the stack.
Richard.