Convert packed signed 32-bit integers from a and b to packed 16-bit integers using signed saturation. Warning: a and b are interleaved per-lane. Result has: a lane 0, b lane 0, a lane 1, b lane 1.
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Convert packed signed 32-bit integers from a and b to packed 16-bit integers using signed saturation. Warning: a and b are interleaved per-lane. Result has: a lane 0, b lane 0, a lane 1, b lane 1.