Simon Pilgrim 69bc0990a9 [DAGCombiner] Enable SimplifyDemandedBits vector support for TRUNCATE (REAPPLIED). ...

Add DemandedElts support inside the TRUNCATE analysis.

REAPPLIED - this was reverted by @hans at rGa51226057fc3 due to an issue with vector shift amount types, which was fixed in rG935bacd3a724 and an additional test case added at rG0ca81b90d19d

Differential Revision: https://reviews.llvm.org/D56387

2021-01-21 13:01:34 +00:00

9.7 KiB

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