ROLL $1, (BX)                           // d103
	ROLL $1, (R11)                          // 41d103
	ROLL $1, DX                             // d1c2
	ROLL $1, R11                            // 41d1c3
	ROLL CL, (BX)                           // d303
	ROLL CL, (R11)                          // 41d303
	ROLL CL, DX                             // d3c2
	ROLL CL, R11                            // 41d3c3

	v_1 := v.Args[1]
	v_0 := v.Args[0]
	// match: (ROLL x (NEGQ y))
	// result: (RORL x y)
	for {
		x := v_0
		if v_1.Op != OpAMD64NEGQ {
			break
		}
		y := v_1.Args[0]
		v.reset(OpAMD64RORL)
		v.AddArg2(x, y)
		return true
	}
	// match: (ROLL x (NEGL y))
	// result: (RORL x y)
	for {
		x := v_0
		if v_1.Op != OpAMD64NEGL {
			break

For example:

```
# 't' is [0, 1, 2, 3, 4]
roll(t, shift=2, axis=0) ==> [3, 4, 0, 1, 2]

# shifting along multiple dimensions
# 't' is [[0, 1, 2, 3, 4], [5, 6, 7, 8, 9]]
roll(t, shift=[1, -2], axis=[0, 1]) ==> [[7, 8, 9, 5, 6], [2, 3, 4, 0, 1]]

# shifting along the same axis multiple times
# 't' is [[0, 1, 2, 3, 4], [5, 6, 7, 8, 9]]
roll(t, shift=[2, -3], axis=[1, 1]) ==> [[1, 2, 3, 4, 0], [6, 7, 8, 9, 5]]

1C38..1C3A    ; disallowed                             # NA   <reserved-1C38>..<reserved-1C3A>
1C3B..1C3F    ; valid                  ;      ; NV8    # 5.1  LEPCHA PUNCTUATION TA-ROL..LEPCHA PUNCTUATION TSHOOK
1C40..1C49    ; valid                                  # 5.1  LEPCHA DIGIT ZERO..LEPCHA DIGIT NINE
1C4A..1C4C    ; disallowed                             # NA   <reserved-1C4A>..<reserved-1C4C>