tiny.simd.combineShiftRightLanes

1pub fn combineShiftRightLanes(2    comptime D: type,3    comptime amount: usize,4    high: D.Vector,5    low: D.Vector,6) D.Vector {7    const lanes_per_block = comptime blockLanes(D);8    if (comptime amount >= lanes_per_block) @compileError("combined lane shift must remain inside a block");9    const high_lanes: [D.lane_count]D.Lane = @bitCast(high);10    const low_lanes: [D.lane_count]D.Lane = @bitCast(low);11    var result: [D.lane_count]D.Lane = undefined;12    inline for (0..D.lane_count) |index| {13        const base = index / lanes_per_block * lanes_per_block;14        const source = index % lanes_per_block + amount;15        result[index] = if (source < lanes_per_block)16            low_lanes[base + source]17        else18            high_lanes[base + source - lanes_per_block];19    }20    return @bitCast(result);21}

1pub const combineShiftRightLanes = block.combineShiftRightLanes;