Matt Arsenault 47c68904a5 DAG: ComputeNumSignBits from load range metadata ...

The cases where the result type doesn't match the range type
are inadequately tested, but I'm not sure how to write such a
test. During the pre-legalize combine, any obviously optimizable
code gets handled so it's harder to test legalized extloads.

2022-12-05 11:57:13 -05:00

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