I think this patch is causing a glibc testing error. The
tests math/bug-nextafter and math/bug-nexttoward are failing
due to underflow not getting set. Here is a test case that
should print nothing but is currently printing the
'did not underflow' message.
#include <fenv.h>
#include <math.h>
#include <float.h>
#include <stdlib.h>
#include <stdio.h>
float zero = 0.0;
float inf = INFINITY;
int
main (void)
{
int result = 0;
float i = INFINITY;
float m = FLT_MAX;
i = 0;
m = FLT_MIN;
feclearexcept (FE_ALL_EXCEPT);
i = nextafterf (m, i);
if (i < 0 || i >= FLT_MIN)
{
printf ("nextafterf+ failed\n");
++result;
}
if (fetestexcept (FE_UNDERFLOW) == 0)
{
printf ("nextafterf+ did not underflow\n");
++result;
}
return result;
}
