Fix ldbl-128ibm asinhl inaccuracy (bug 16385)

[Joseph S. Myers]

This patch fixes bug 16385, ldbl-128ibm asinhl inaccuracy, which
showed up while attempting to regenerate ulps for powerpc-nofpu for
2.19.  The problem here was use of fabs instead of fabsl meaning large
arguments were reduced to the precision of double.  Tested for
powerpc-nofpu.

2014-01-01  Joseph Myers  <joseph@codesourcery.com>

	[BZ #16385]
	* sysdeps/ieee754/ldbl-128ibm/s_asinhl.c (__asinhl): Use fabsl not
	fabs.

diff --git a/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c b/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c
index 63c6edb..043b151 100644
--- a/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c
+++ b/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c
@@ -48,7 +48,7 @@ long double __asinhl(long double x)
 	    if(huge+x>one) return x;	/* return x inexact except 0 */
 	}
 	if(ix>0x41b0000000000000LL) {	/* |x| > 2**28 */
-	    w = __ieee754_logl(fabs(x))+ln2;
+	    w = __ieee754_logl(fabsl(x))+ln2;
 	} else if (ix>0x4000000000000000LL) {	/* 2**28 > |x| > 2.0 */
 	    t = fabs(x);
 	    w = __ieee754_logl(2.0*t+one/(__ieee754_sqrtl(x*x+one)+t));

-- 
Joseph S. Myers
joseph@codesourcery.com