ADDL DX, (BX)                           // 0113
	ADDL R11, (BX)                          // 44011b
	ADDL DX, (R11)                          // 410113
	ADDL R11, (R11)                         // 45011b
	ADDL DX, DX                             // 01d2 or 03d2
	ADDL R11, DX                            // 4401da or 4103d3
	ADDL DX, R11                            // 4101d3 or 4403da

	// result: (LEAL2 x y)
	for {
		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
			x := v_0
			if v_1.Op != OpAMD64SHLLconst || auxIntToInt8(v_1.AuxInt) != 1 {
				continue
			}
			y := v_1.Args[0]
			v.reset(OpAMD64LEAL2)
			v.AddArg2(x, y)
			return true
		}
		break
	}
	// match: (ADDL x (ADDL y y))
	// result: (LEAL2 x y)
	for {