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Make preciprocal IEEE compliant w.r.t. 1/0 and 1/inf.

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This commit is contained in:
Rasmus Munk Larsen
2022-01-26 20:38:05 +00:00
parent d271a7d545
commit 8f2c6f0aa6
3 changed files with 44 additions and 9 deletions
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17
test/packetmath.cpp
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@@ -1007,6 +1007,23 @@ void packetmath_real() {
VERIFY_IS_EQUAL(data2[0], Scalar(1));
}
}
if (PacketTraits::HasReciprocal && PacketSize >= 2) {
test::packet_helper<PacketTraits::HasReciprocal, Packet> h;
const Scalar inf = NumTraits<Scalar>::infinity();
const Scalar zero = Scalar(0);
data1[0] = zero;
data1[1] = -zero;
h.store(data2, internal::preciprocal(h.load(data1)));
VERIFY_IS_EQUAL(data2[0], inf);
VERIFY_IS_EQUAL(data2[1], -inf);
data1[0] = inf;
data1[1] = -inf;
h.store(data2, internal::preciprocal(h.load(data1)));
VERIFY_IS_EQUAL(data2[0], zero);
VERIFY_IS_EQUAL(data2[1], -zero);
}
}
#define CAST_CHECK_CWISE1_IF(COND, REFOP, POP, SCALAR, REFTYPE) if(COND) { \