weird optimization in sin+cos, x86 backend

[Andrew Haley]

On 02/09/2012 03:59 PM, Richard Guenther wrote:
> On Thu, Feb 9, 2012 at 4:57 PM, Andrew Haley <aph@redhat.com> wrote:
>> On 02/09/2012 03:56 PM, Michael Matz wrote:
>>> Hi,
>>>
>>> On Thu, 9 Feb 2012, Andrew Haley wrote:
>>>
>>>> On 02/09/2012 03:28 PM, Richard Guenther wrote:
>>>>> So - do you have an idea what routines we can start off with to get
>>>>> a full C99 set of routines for float, double and long double?  The last
>>>>> time I was exploring the idea again I was looking at the BSD libm.
>>>>
>>>> I'd start with INRIA's crlibm.
>>>
>>> Not complete.  Too slow.
>>
>> Not complete, fair enough.  But it's the fastest accurate one,
>> isn't it?
> 
> Maybe.  Nothing would prevent us from composing from multiple sources
> of course.  crlibm also only provides double precision routines.

Okay, but the crlibm algorithms could be extended to long
doubles and, presumably, floats.  Where's Vincent Lefevre
when you need him?   :-)

Andrew.