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[PING][PATCH] Fix cos computation for multiple precision fallback (bz #20357)


Ping!

On Wed, Jul 13, 2016 at 04:13:25PM +0530, Siddhesh Poyarekar wrote:
> On Tue, Jul 12, 2016 at 02:22:03PM +0530, Siddhesh Poyarekar wrote:
> > During the sincos consolidation I made two mistakes, one was a logical
> > error due to which cos(0x1.8475e5afd4481p+0) returned
> > sin(0x1.8475e5afd4481p+0) instead.
> > 
> > The second issue was an error in negating inputs for the correct
> > quadrants for sine.  I could not find a suitable test case for this
> > despite running a program to search for such an input for a couple of
> > hours.
> 
> FYI, I have added this as a blocker for 2.24.
> 
> Siddhesh


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