Gilles Peskine 997be0aba3 Fix multiplication with negative result and a low-order 0 limb
Fix a bug introduced in "Fix multiplication producing a negative zero" that
caused the sign to be forced to +1 when A > 0, B < 0 and B's low-order limb
is 0.

Add a non-regression test. More generally, systematically test combinations
of leading zeros, trailing zeros and signs.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-22 12:47:21 +02:00
..
2021-06-21 09:10:55 +01:00
2015-04-08 13:25:31 +02:00
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2020-11-26 15:54:35 +01:00
2021-03-09 16:09:18 +00:00
2021-06-18 12:59:38 +02:00