[llvm-branch-commits] [llvm] [DAG] Explicitly truncate splat operand in get_active_lane_mask expansion (PR #230056)

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Andarwinux wrote:

Best to provide x86-64-v2/3/4 coverage - looks like x86 is completely missing codegen coverage for this intrinsic.

https://github.com/llvm/llvm-project/pull/230056