MOVD	(R12), R8;			\
	PCDATA  $PCDATA_StackMapIndex, $0;	\
	BL	(R8);				\
	/* copy return values back */		\
	MOVD	stackArgsType+0(FP), R7;		\
	MOVD	stackArgs+16(FP), R6;			\
	MOVWZ	stackArgsSize+24(FP), R5;			\
	MOVD	$stack-MAXSIZE(SP), R4;		\
	MOVWZ	stackRetOffset+28(FP), R1;		\
	ADD	R1, R4;				\
	ADD	R1, R6;				\
	SUB	R1, R5;				\
	BL	callRet<>(SB);			\
	RET

	// s390x:`MOVHBR\t\(.*\), [R]`,`CMPW\t.*, [$]`
	return s == "xx"
}

func CompareString2(s string) bool {
	// amd64:`CMPL\t\(.*\), [$]`
	// arm64:`MOVWU\t\(.*\), [R]`,`CMPW\t.*, [R]`
	// ppc64le:`MOVWZ\t\(.*\), [R]`,`CMPW\t.*, [R]`
	// s390x:`MOVWBR\t\(.*\), [R]`,`CMPW\t.*, [$]`
	return s == "xxxx"
}

func CompareString3(s string) bool {
	// amd64:`CMPQ\t\(.*\), [A-Z]`
	// arm64:-`CMPW\t`
	// ppc64x:-`CMPW\t`

checkbytes:
	BC	12, 14, LR		// BEQ lr
#ifdef GOPPC64_power10
	SLD	$56, BYTES, TMP
	LXVL	SRC, TMP, V0
	STXVL	V0, TGT, TMP
	RET
#endif
lt8:	// Move word if possible
	CMP BYTES, $4
	BLT lt4
	MOVWZ 0(SRC), TMP
	ADD $-4, BYTES
	MOVW TMP, 0(TGT)
	ADD $4, SRC
	ADD $4, TGT
lt4:	// Move halfword if possible
	CMP BYTES, $2
	BLT lt2
	MOVHZ 0(SRC), TMP
	ADD $-2, BYTES
	MOVH TMP, 0(TGT)

	io64[2] = (io64[2] >> 4) & 0x0000FFFFFFFFFFFF
	// ppc64x: -"SRD", -"AND", "RLDICL\t[$]36, R[0-9]*, [$]28, R"
	io64[3] = (io64[3] >> 28) & 0x0000FFFFFFFFFFFF

	// ppc64x: "MOVWZ", "RLWNM\t[$]1, R[0-9]*, [$]28, [$]3, R"
	io64[4] = uint64(bits.RotateLeft32(io32[0], 1) & 0xF000000F)

	// ppc64x: "RLWNM\t[$]0, R[0-9]*, [$]4, [$]19, R"
	io32[0] = io32[0] & 0x0FFFF000

		{name: "MOVWreg", argLength: 1, reg: gp11sp, asm: "MOVW", typ: "Int64"},    // sign extend arg0 from int32 to int64
		{name: "MOVWZreg", argLength: 1, reg: gp11sp, asm: "MOVWZ", typ: "UInt64"}, // zero extend arg0 from int32 to int64

		{name: "MOVDconst", reg: gp01, asm: "MOVD", typ: "UInt64", aux: "Int64", rematerializeable: true}, // auxint

	BLT	next4
	MOVD	0(MASK_PTR), R14
	MOVD	0(BLK_INP), R15
	XOR	R14, R15, R14
	MOVD	R14, 0(BLK_OUT)
	ADD	$8, R16
	ADD	$-8, IN_LEN
next4:
	CMP	IN_LEN, $4
	BLT	next2
	MOVWZ	(BLK_INP)(R16), R15
	MOVWZ	(MASK_PTR)(R16), R14
	XOR	R14, R15, R14
	MOVW	R14, (R16)(BLK_OUT)
	ADD	$4, R16
	ADD	$-4, IN_LEN
next2:
	CMP	IN_LEN, $2
	BLT	next1
	MOVHZ	(BLK_INP)(R16), R15

#endif						\
	/* copy return values back */		\
	MOVD	regArgs+40(FP), R20;		\
	BL	runtime·spillArgs(SB);			\
	MOVD	stackArgsType+0(FP), R7;		\
	MOVD	stackArgs+16(FP), R3;			\
	MOVWZ	stackArgsSize+24(FP), R4;			\
	MOVWZ	stackRetOffset+28(FP), R6;		\
	ADD	$FIXED_FRAME, R1, R5;		\
	ADD	R6, R5; 			\
	ADD	R6, R3;				\
	SUB	R6, R4;				\
	BL	callRet<>(SB);			\
	RET

		{name: "MOVWreg", argLength: 1, reg: gp11, asm: "MOVW", typ: "Int64"},   // sign extend int32 to int64
		{name: "MOVWZreg", argLength: 1, reg: gp11, asm: "MOVWZ", typ: "Int64"}, // zero extend uint32 to uint64

		// Load bytes in the endian order of the arch from arg0+aux+auxint into a 64 bit register.

is updated by the value in the index register.

Examples:

	MOVD (R3), R4		<=>	ld r4,0(r3)
	MOVW (R3), R4		<=>	lwa r4,0(r3)
	MOVWZU 4(R3), R4		<=>	lwzu r4,4(r3)
	MOVWZ (R3+R5), R4		<=>	lwzx r4,r3,r5
	MOVHZ  (R3), R4		<=>	lhz r4,0(r3)
	MOVHU 2(R3), R4		<=>	lhau r4,2(r3)
	MOVBZ (R3), R4		<=>	lbz r4,0(r3)

	MOVD R4,(R3)		<=>	std r4,0(r3)
	MOVW R4,(R3)		<=>	stw r4,0(r3)

	MOVD	p_len+16(FP), LEN

	SRD	$6, LEN
	SLD	$6, LEN
	ADD	INP, LEN, END

	CMP	INP, END
	BEQ	end

	MOVD	$·kcon(SB), TBL_STRT
	MOVD	$0x10, R_x010

#ifdef GOARCH_ppc64le
	MOVWZ	$8, TEMP
	LVSL	(TEMP)(R0), LEMASK
	VSPLTISB	$0x0F, KI
	VXOR	KI, LEMASK, LEMASK
#endif

	LXVW4X	(CTX)(R_x000), V0
	LXVW4X	(CTX)(R_x010), V4

	// unpack the input values into vector registers