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input.mlir

module {
llvm.func @zero_counts_0(%arg0: vector<4xi32>) attributes {passthrough = ["nounwind"]} {
  %v0 = "llvm.intr.ctlz"(%arg0) <{is_zero_poison = true}> : (vector<4xi32>) -> vector<4xi32>
  llvm.return
}
}