SUB $(1923<<12), R4, R27                   // SUB $7876608, R4, R27         // 9b0c5ed1
	SUBW $(1923<<12), R4, R27                  // SUBW $7876608, R4, R27        // 9b0c5e51
	SUBW R12<<29, R7, R8                       // e8740c4b
	SUB R12<<61, R7, R8                        // e8f40ccb
	SUBSW R2.SXTH<<3, R13, R6                  // a6ad226b
	SUBS R21.UXTX<<2, R27, R4                  // 646b35eb

	SLLV	R10, R22, R21	// 0156a814
	SRL	R27, R6, R17	// 03668806
	SRLV	R27, R6, R17	// 03668816
	SRA	R11, R19, R20	// 0173a007
	SRAV	R20, R19, R19	// 02939817
	ROTR	R19, R18, R20	// 0272a046
	ROTRV	R9, R13, R16	// 012d8056

//	LSHW rreg ',' rreg
//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
	SLL	R1, R2		// 00221004
	SLLV	R10, R22	// 0156b014
	SRL	R27, R6   	// 03663006
	SRLV	R27, R6   	// 03663016

				{2, 1073741816},          // R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 g R23 R24 R25 R26 R27 R28 R29 R31
				{0, 4611686019501129724}, // SP R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 g R23 R24 R25 R26 R27 R28 R29 R31 SB
			},
			outputs: []outputInfo{
				{0, 1071644664}, // R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R23 R24 R25 R26 R27 R28 R29 R31

package codegen

type T [2]*int // contain pointer, not SSA-able (so locals are not registerized)

var p1, p2, p3 T

func F() {
	// 3735936685 is 0xdeaddead. On ARM64 R27 is REGTMP.
	// clobber x, y at entry. not clobber z (stack object).
	// amd64:`MOVL\t\$3735936685, command-line-arguments\.x`, `MOVL\t\$3735936685, command-line-arguments\.y`, -`MOVL\t\$3735936685, command-line-arguments\.z`

	MSR	R4, CNTP_CVAL_EL0                  // 44e21bd5
	MRS	CNTP_TVAL_EL0, R27                 // 1be23bd5
	MSR	R17, CNTP_TVAL_EL0                 // 11e21bd5
	MRS	CNTV_CTL_EL0, R27                  // 3be33bd5
	MSR	R2, CNTV_CTL_EL0                   // 22e31bd5
	MRS	CNTV_CVAL_EL0, R16                 // 50e33bd5
	MSR	R27, CNTV_CVAL_EL0                 // 5be31bd5
	MRS	CNTV_TVAL_EL0, R12                 // 0ce33bd5

// Caution: ugly multiline assembly macros in your future!

#define DISPATCH(NAME,MAXSIZE)		\
	MOVD	$MAXSIZE, R27;		\
	CMP	R27, R16;		\
	BGT	3(PC);			\
	MOVD	$NAME(SB), R27;	\
	B	(R27)
// Note: can't just "B NAME(SB)" - bad inlining results.

TEXT ·reflectcall(SB), NOSPLIT|NOFRAME, $0-48
	MOVWU	frameSize+32(FP), R16
	DISPATCH(runtime·call16, 16)

	print("r22  ", hex(c.r22()), "\t")
	print("r23  ", hex(c.r23()), "\n")
	print("r24  ", hex(c.r24()), "\t")
	print("r25  ", hex(c.r25()), "\n")
	print("r26  ", hex(c.r26()), "\t")
	print("r27  ", hex(c.r27()), "\n")
	print("r28  ", hex(c.r28()), "\t")
	print("r29  ", hex(c.r29()), "\n")
	print("r30  ", hex(c.r30()), "\t")
	print("r31  ", hex(c.r31()), "\n")
	print("pc   ", hex(c.pc()), "\t")

	{"R17", "R17"},
	{"R18", "R18"},
	{"R19", "R19"},
	{"R2", "R2"},
	{"R20", "R20"},
	{"R21", "R21"},
	{"R22", "R22"},
	{"R23", "R23"},
	{"R24", "R24"},
	{"R25", "R25"},
	{"R26", "R26"},
	{"R27", "R27"},
	{"R28", "R28"},
	{"R29", "R29"},
	{"R3", "R3"},
	{"R31", "R31"},
	{"R4", "R4"},
	{"R5", "R5"},
	{"R6", "R6"},
	{"R7", "R7"},
	{"R8", "R8"},
	{"R9", "R9"},
	{"SPR(269)", "SPR(269)"},

	// R20: ptr to source memory
	// R21: ptr to destination memory
	// R26, R27 (aka REGTMP): scratch space
	// R20 and R21 are updated as a side effect
	fmt.Fprintln(w, "TEXT runtime·duffcopy<ABIInternal>(SB), NOSPLIT|NOFRAME, $0-0")

	for i := 0; i < 64; i++ {
		fmt.Fprintln(w, "\tLDP.P\t16(R20), (R26, R27)")
		fmt.Fprintln(w, "\tSTP.P\t(R26, R27), 16(R21)")
		fmt.Fprintln(w)
	}
	fmt.Fprintln(w, "\tRET")
}

	ADD	$0x1234567, R27, R3                              // ERROR "cannot use REGTMP as source"
	ADD	$0x3fffffffc000, R27, R5                         // ERROR "cannot use REGTMP as source"
	AND	$0x22220000, R27, R4                             // ERROR "cannot use REGTMP as source"
	ANDW	$0x6006000060060, R27, R5                        // ERROR "cannot use REGTMP as source"