Nikita Popov 9a85643cd3 [KnownBits] Combine abs() implementations ...

ValueTracking was using a more powerful abs() implementation. Roll
it into KnownBits::abs(). Also add an exhaustive test for abs(),
in both the poisoning and non-poisoning variants.

2020-11-13 22:23:50 +01:00

15 KiB

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