[PATCH 1/N] x86_64 vectorization support: vectorized math functions addition to Glibc

[Carlos O'Donell]

On 09/12/2014 03:17 PM, Carlos O'Donell wrote:
> On 09/12/2014 01:33 AM, Andi Kleen wrote:
>> Rich Felker <dalias@libc.org> writes:
>>>
>>> This really seems like something the compiler should be doing --
>>> translating parallelizable calls to the standard math functions into
>>> calls to special simd versions (
>>
>> Of course gcc already supports that. Even in two different flavours.
>>
>> Not sure why the patch doesn't implement one of those ABIs though.
> 
> Please note that AFAIK gcc doesn't implement the ABI as documented
> by Intel, but a variant, and my expectation is that we should *absolutely*
> be targetting the gcc version of the Intel ABI otherwise what's the point?

I see Jakub already responded that there is a 3rd ABI :}

c.