Antonio Frighetto 65898e5260 [ConstantRange] Handle Intrinsic::ctlz ...

Introduce ConstantRange support for ctlz intrinsic, including
exhaustive testing. Among other things, LVI may now be able to
propagate information about cltz constant ranges lattice values.

Differential Revision: https://reviews.llvm.org/D142234

2023-02-17 09:57:35 +01:00

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