FLT_MIN
d0 = FLT_MIN;
static volatile const float f_tiny = FLT_MIN;
test(fmaf, -FLT_MIN, FLT_MIN, 0.0, -0.0,
test(fmaf, FLT_MIN, FLT_MIN, NAN, NAN, ALL_STD_EXCEPT, 0);
1.0F + FLT_MIN == 1.0F + FLT_EPSILON &&