[PATCH v2] [BZ 21130] ldbl-128: Fix y0 and y1 for -Inf input

[Joseph Myers]

On Fri, 10 Feb 2017, Gabriel F. T. Gomes wrote:

> The Bessel functions of the second type (Yn) are not defined for
> negative input and should return NAN with the "invalid" exception
> raised, in these cases.  However, current code checks for infinity and
> return zero, regardless of the sign.  This error is exposed for long
> double when linking with -lieee.  Without this flag, the error is not
> exposed, because the wrappers for these functions, which use
> __kernel_standard functionality, return the correct value.
> 
> Tested for powerpc64le.

OK.

> 	[BZ 21130]

Note that there is a # before the bug number in the ChangeLog syntax, 
"[BZ #21130]".

-- 
Joseph S. Myers
joseph@codesourcery.com