Kazu Hirata d5248a46fa [SystemZ] Use llvm::bit_floor (NFC) ...

If x is known to be nonzero, findLastSet(x) returns the index of the
highest set bit counting from the LSB, so 1 << findLastSet(x) is the
same as llvm::bit_floor(x).

2023-01-24 22:10:03 -08:00

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