{"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"///"}]}
/// Implement an x86 pack instruction with the intrinsic `_mm{,256}pack{us,s}_epi{16,32}`.
/// Validated for correctness against LLVM, see commit `c8f5d35508e062bd2d95e6c03429bfec831db6d3`.