Simon Pilgrim 117d755b1b [DAG] SimplifyDemandedBits - use ComputeKnownBits instead of getValidShiftAmountConstant to check for constant shift amounts. (#92412) ...

This allows us to handle cases where the constant has already been type legalized behind a bitcast

Despite calling ComputeKnownBits I'm not seeing any notable change in compile time.

2024-05-16 17:04:30 +01:00

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