bFalse := s.f.NewBlock(ssa.BlockPlain)
			bEnd := s.f.NewBlock(ssa.BlockPlain)
			b.AddEdgeTo(bTrue)
			b.AddEdgeTo(bFalse)
			b.Likely = ssa.BranchLikely // most machines have popcnt nowadays

			// We have the intrinsic - use it directly.
			s.startBlock(bTrue)
			s.vars[n] = s.newValue1(op, types.Types[types.TINT], args[0])
			s.endBlock().AddEdgeTo(bEnd)

				{0, 23551}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R11 R12 R14
			},
			clobbers: 2, // R1
			outputs: []outputInfo{
				{0, 1}, // R0
			},
		},
	},
	{
		name:         "POPCNT",
		argLen:       1,
		clobberFlags: true,
		asm:          s390x.APOPCNT,
		reg: regInfo{
			inputs: []inputInfo{
				{0, 23551}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R11 R12 R14
			},