IEEE underflows are not reported when the mask bit is off and we don't
also have an inexact exception.
z14 PoP, 9-20, "IEEE Underflow":
An IEEE-underflow exception is recognized for an
IEEE target when the tininess condition exists and
either: (1) the IEEE-underflow mask bit in the FPC
register is zero and the result value is inexact, or (2)
the IEEE-underflow mask bit in the FPC register is
one.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190218122710.23639-6-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
6d6ad1d14e