+2014-04-29 Stefan Liebler <stli@linux.vnet.ibm.com>
+
+ [BZ #16823]
+ * sysdeps/ieee754/ldbl-128/s_log1pl.c (__log1pl):
+ Always divide by positive zero when computing -Inf result.
+ * sysdeps/ieee754/dbl-64/s_log1p.c (__log1p): Likewise.
+ * sysdeps/ieee754/flt-32/s_log1pf.c (__log1pf): Likewise.
+
2014-04-28 Adhemerval Zanella <azanella@linux.vnet.ibm.com>
* sysdeps/powerpc/fpu/fclrexcpt.c (__feclearexcept): Do not update
if (__glibc_unlikely (ax >= 0x3ff00000)) /* x <= -1.0 */
{
if (x == -1.0)
- return -two54 / (x - x); /* log1p(-1)=+inf */
+ return -two54 / zero; /* log1p(-1)=-inf */
else
return (x - x) / (x - x); /* log1p(x<-1)=NaN */
}
k = 1;
if (hx < 0x3ed413d7) { /* x < 0.41422 */
if(ax>=0x3f800000) { /* x <= -1.0 */
- if(x==(float)-1.0) return -two25/(x-x); /* log1p(-1)=+inf */
+ if(x==(float)-1.0) return -two25/zero; /* log1p(-1)=-inf */
else return (x-x)/(x-x); /* log1p(x<-1)=NaN */
}
if(ax<0x31000000) { /* |x| < 2**-29 */
if (x <= 0.0L)
{
if (x == 0.0L)
- return (-1.0L / (x - x));
+ return (-1.0L / zero); /* log1p(-1) = -inf */
else
return (zero / (x - x));
}