#include <openssl/arm_arch.h>

#if __ARM_MAX_ARCH__>=7
.text

.align	5
Lrcon:
.long	0x01,0x01,0x01,0x01
.long	0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d	// rotate-n-splat
.long	0x1b,0x1b,0x1b,0x1b

.globl	_aes_hw_set_encrypt_key
.private_extern	_aes_hw_set_encrypt_key

.align	5
_aes_hw_set_encrypt_key:
Lenc_key:
	stp	x29,x30,[sp,#-16]!
	add	x29,sp,#0
	mov	x3,#-1
	cmp	x0,#0
	b.eq	Lenc_key_abort
	cmp	x2,#0
	b.eq	Lenc_key_abort
	mov	x3,#-2
	cmp	w1,#128
	b.lt	Lenc_key_abort
	cmp	w1,#256
	b.gt	Lenc_key_abort
	tst	w1,#0x3f
	b.ne	Lenc_key_abort

	adr	x3,Lrcon
	cmp	w1,#192

	eor	v0.16b,v0.16b,v0.16b
	ld1	{v3.16b},[x0],#16
	mov	w1,#8		// reuse w1
	ld1	{v1.4s,v2.4s},[x3],#32

	b.lt	Loop128
	b.eq	L192
	b	L256

.align	4
Loop128:
	tbl	v6.16b,{v3.16b},v2.16b
	ext	v5.16b,v0.16b,v3.16b,#12
	st1	{v3.4s},[x2],#16
	aese	v6.16b,v0.16b
	subs	w1,w1,#1

	eor	v3.16b,v3.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v3.16b,v3.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v6.16b,v6.16b,v1.16b
	eor	v3.16b,v3.16b,v5.16b
	shl	v1.16b,v1.16b,#1
	eor	v3.16b,v3.16b,v6.16b
	b.ne	Loop128

	ld1	{v1.4s},[x3]

	tbl	v6.16b,{v3.16b},v2.16b
	ext	v5.16b,v0.16b,v3.16b,#12
	st1	{v3.4s},[x2],#16
	aese	v6.16b,v0.16b

	eor	v3.16b,v3.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v3.16b,v3.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v6.16b,v6.16b,v1.16b
	eor	v3.16b,v3.16b,v5.16b
	shl	v1.16b,v1.16b,#1
	eor	v3.16b,v3.16b,v6.16b

	tbl	v6.16b,{v3.16b},v2.16b
	ext	v5.16b,v0.16b,v3.16b,#12
	st1	{v3.4s},[x2],#16
	aese	v6.16b,v0.16b

	eor	v3.16b,v3.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v3.16b,v3.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v6.16b,v6.16b,v1.16b
	eor	v3.16b,v3.16b,v5.16b
	eor	v3.16b,v3.16b,v6.16b
	st1	{v3.4s},[x2]
	add	x2,x2,#0x50

	mov	w12,#10
	b	Ldone

.align	4
L192:
	ld1	{v4.8b},[x0],#8
	movi	v6.16b,#8			// borrow v6.16b
	st1	{v3.4s},[x2],#16
	sub	v2.16b,v2.16b,v6.16b	// adjust the mask

Loop192:
	tbl	v6.16b,{v4.16b},v2.16b
	ext	v5.16b,v0.16b,v3.16b,#12
	st1	{v4.8b},[x2],#8
	aese	v6.16b,v0.16b
	subs	w1,w1,#1

	eor	v3.16b,v3.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v3.16b,v3.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v3.16b,v3.16b,v5.16b

	dup	v5.4s,v3.s[3]
	eor	v5.16b,v5.16b,v4.16b
	eor	v6.16b,v6.16b,v1.16b
	ext	v4.16b,v0.16b,v4.16b,#12
	shl	v1.16b,v1.16b,#1
	eor	v4.16b,v4.16b,v5.16b
	eor	v3.16b,v3.16b,v6.16b
	eor	v4.16b,v4.16b,v6.16b
	st1	{v3.4s},[x2],#16
	b.ne	Loop192

	mov	w12,#12
	add	x2,x2,#0x20
	b	Ldone

.align	4
L256:
	ld1	{v4.16b},[x0]
	mov	w1,#7
	mov	w12,#14
	st1	{v3.4s},[x2],#16

Loop256:
	tbl	v6.16b,{v4.16b},v2.16b
	ext	v5.16b,v0.16b,v3.16b,#12
	st1	{v4.4s},[x2],#16
	aese	v6.16b,v0.16b
	subs	w1,w1,#1

	eor	v3.16b,v3.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v3.16b,v3.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v6.16b,v6.16b,v1.16b
	eor	v3.16b,v3.16b,v5.16b
	shl	v1.16b,v1.16b,#1
	eor	v3.16b,v3.16b,v6.16b
	st1	{v3.4s},[x2],#16
	b.eq	Ldone

	dup	v6.4s,v3.s[3]		// just splat
	ext	v5.16b,v0.16b,v4.16b,#12
	aese	v6.16b,v0.16b

	eor	v4.16b,v4.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v4.16b,v4.16b,v5.16b
	ext	v5.16b,v0.16b,v5.16b,#12
	eor	v4.16b,v4.16b,v5.16b

	eor	v4.16b,v4.16b,v6.16b
	b	Loop256

Ldone:
	str	w12,[x2]
	mov	x3,#0

Lenc_key_abort:
	mov	x0,x3			// return value
	ldr	x29,[sp],#16
	ret


.globl	_aes_hw_set_decrypt_key
.private_extern	_aes_hw_set_decrypt_key

.align	5
_aes_hw_set_decrypt_key:
	stp	x29,x30,[sp,#-16]!
	add	x29,sp,#0
	bl	Lenc_key

	cmp	x0,#0
	b.ne	Ldec_key_abort

	sub	x2,x2,#240		// restore original x2
	mov	x4,#-16
	add	x0,x2,x12,lsl#4	// end of key schedule

	ld1	{v0.4s},[x2]
	ld1	{v1.4s},[x0]
	st1	{v0.4s},[x0],x4
	st1	{v1.4s},[x2],#16

Loop_imc:
	ld1	{v0.4s},[x2]
	ld1	{v1.4s},[x0]
	aesimc	v0.16b,v0.16b
	aesimc	v1.16b,v1.16b
	st1	{v0.4s},[x0],x4
	st1	{v1.4s},[x2],#16
	cmp	x0,x2
	b.hi	Loop_imc

	ld1	{v0.4s},[x2]
	aesimc	v0.16b,v0.16b
	st1	{v0.4s},[x0]

	eor	x0,x0,x0		// return value
Ldec_key_abort:
	ldp	x29,x30,[sp],#16
	ret

.globl	_aes_hw_encrypt
.private_extern	_aes_hw_encrypt

.align	5
_aes_hw_encrypt:
	ldr	w3,[x2,#240]
	ld1	{v0.4s},[x2],#16
	ld1	{v2.16b},[x0]
	sub	w3,w3,#2
	ld1	{v1.4s},[x2],#16

Loop_enc:
	aese	v2.16b,v0.16b
	aesmc	v2.16b,v2.16b
	ld1	{v0.4s},[x2],#16
	subs	w3,w3,#2
	aese	v2.16b,v1.16b
	aesmc	v2.16b,v2.16b
	ld1	{v1.4s},[x2],#16
	b.gt	Loop_enc

	aese	v2.16b,v0.16b
	aesmc	v2.16b,v2.16b
	ld1	{v0.4s},[x2]
	aese	v2.16b,v1.16b
	eor	v2.16b,v2.16b,v0.16b

	st1	{v2.16b},[x1]
	ret

.globl	_aes_hw_decrypt
.private_extern	_aes_hw_decrypt

.align	5
_aes_hw_decrypt:
	ldr	w3,[x2,#240]
	ld1	{v0.4s},[x2],#16
	ld1	{v2.16b},[x0]
	sub	w3,w3,#2
	ld1	{v1.4s},[x2],#16

Loop_dec:
	aesd	v2.16b,v0.16b
	aesimc	v2.16b,v2.16b
	ld1	{v0.4s},[x2],#16
	subs	w3,w3,#2
	aesd	v2.16b,v1.16b
	aesimc	v2.16b,v2.16b
	ld1	{v1.4s},[x2],#16
	b.gt	Loop_dec

	aesd	v2.16b,v0.16b
	aesimc	v2.16b,v2.16b
	ld1	{v0.4s},[x2]
	aesd	v2.16b,v1.16b
	eor	v2.16b,v2.16b,v0.16b

	st1	{v2.16b},[x1]
	ret

.globl	_aes_hw_cbc_encrypt
.private_extern	_aes_hw_cbc_encrypt

.align	5
_aes_hw_cbc_encrypt:
	stp	x29,x30,[sp,#-16]!
	add	x29,sp,#0
	subs	x2,x2,#16
	mov	x8,#16
	b.lo	Lcbc_abort
	csel	x8,xzr,x8,eq

	cmp	w5,#0			// en- or decrypting?
	ldr	w5,[x3,#240]
	and	x2,x2,#-16
	ld1	{v6.16b},[x4]
	ld1	{v0.16b},[x0],x8

	ld1	{v16.4s,v17.4s},[x3]		// load key schedule...
	sub	w5,w5,#6
	add	x7,x3,x5,lsl#4	// pointer to last 7 round keys
	sub	w5,w5,#2
	ld1	{v18.4s,v19.4s},[x7],#32
	ld1	{v20.4s,v21.4s},[x7],#32
	ld1	{v22.4s,v23.4s},[x7],#32
	ld1	{v7.4s},[x7]

	add	x7,x3,#32
	mov	w6,w5
	b.eq	Lcbc_dec

	cmp	w5,#2
	eor	v0.16b,v0.16b,v6.16b
	eor	v5.16b,v16.16b,v7.16b
	b.eq	Lcbc_enc128

	ld1	{v2.4s,v3.4s},[x7]
	add	x7,x3,#16
	add	x6,x3,#16*4
	add	x12,x3,#16*5
	aese	v0.16b,v16.16b
	aesmc	v0.16b,v0.16b
	add	x14,x3,#16*6
	add	x3,x3,#16*7
	b	Lenter_cbc_enc

.align	4
Loop_cbc_enc:
	aese	v0.16b,v16.16b
	aesmc	v0.16b,v0.16b
	st1	{v6.16b},[x1],#16
Lenter_cbc_enc:
	aese	v0.16b,v17.16b
	aesmc	v0.16b,v0.16b
	aese	v0.16b,v2.16b
	aesmc	v0.16b,v0.16b
	ld1	{v16.4s},[x6]
	cmp	w5,#4
	aese	v0.16b,v3.16b
	aesmc	v0.16b,v0.16b
	ld1	{v17.4s},[x12]
	b.eq	Lcbc_enc192

	aese	v0.16b,v16.16b
	aesmc	v0.16b,v0.16b
	ld1	{v16.4s},[x14]
	aese	v0.16b,v17.16b
	aesmc	v0.16b,v0.16b
	ld1	{v17.4s},[x3]
	nop

Lcbc_enc192:
	aese	v0.16b,v16.16b
	aesmc	v0.16b,v0.16b
	subs	x2,x2,#16
	aese	v0.16b,v17.16b
	aesmc	v0.16b,v0.16b
	csel	x8,xzr,x8,eq
	aese	v0.16b,v18.16b
	aesmc	v0.16b,v0.16b
	aese	v0.16b,v19.16b
	aesmc	v0.16b,v0.16b
	ld1	{v16.16b},[x0],x8
	aese	v0.16b,v20.16b
	aesmc	v0.16b,v0.16b
	eor	v16.16b,v16.16b,v5.16b
	aese	v0.16b,v21.16b
	aesmc	v0.16b,v0.16b
	ld1	{v17.4s},[x7]		// re-pre-load rndkey[1]
	aese	v0.16b,v22.16b
	aesmc	v0.16b,v0.16b
	aese	v0.16b,v23.16b
	eor	v6.16b,v0.16b,v7.16b
	b.hs	Loop_cbc_enc

	st1	{v6.16b},[x1],#16
	b	Lcbc_done

.align	5
Lcbc_enc128:
	ld1	{v2.4s,v3.4s},[x7]
	aese	v0.16b,v16.16b
	aesmc	v0.16b,v0.16b
	b	Lenter_cbc_enc128
Loop_cbc_enc128:
	aese	v0.16b,v16.16b
	aesmc	v0.16b,v0.16b
	st1	{v6.16b},[x1],#16
Lenter_cbc_enc128:
	aese	v0.16b,v17.16b
	aesmc	v0.16b,v0.16b
	subs	x2,x2,#16
	aese	v0.16b,v2.16b
	aesmc	v0.16b,v0.16b
	csel	x8,xzr,x8,eq
	aese	v0.16b,v3.16b
	aesmc	v0.16b,v0.16b
	aese	v0.16b,v18.16b
	aesmc	v0.16b,v0.16b
	aese	v0.16b,v19.16b
	aesmc	v0.16b,v0.16b
	ld1	{v16.16b},[x0],x8
	aese	v0.16b,v20.16b
	aesmc	v0.16b,v0.16b
	aese	v0.16b,v21.16b
	aesmc	v0.16b,v0.16b
	aese	v0.16b,v22.16b
	aesmc	v0.16b,v0.16b
	eor	v16.16b,v16.16b,v5.16b
	aese	v0.16b,v23.16b
	eor	v6.16b,v0.16b,v7.16b
	b.hs	Loop_cbc_enc128

	st1	{v6.16b},[x1],#16
	b	Lcbc_done
.align	5
Lcbc_dec:
	ld1	{v18.16b},[x0],#16
	subs	x2,x2,#32		// bias
	add	w6,w5,#2
	orr	v3.16b,v0.16b,v0.16b
	orr	v1.16b,v0.16b,v0.16b
	orr	v19.16b,v18.16b,v18.16b
	b.lo	Lcbc_dec_tail

	orr	v1.16b,v18.16b,v18.16b
	ld1	{v18.16b},[x0],#16
	orr	v2.16b,v0.16b,v0.16b
	orr	v3.16b,v1.16b,v1.16b
	orr	v19.16b,v18.16b,v18.16b

Loop3x_cbc_dec:
	aesd	v0.16b,v16.16b
	aesimc	v0.16b,v0.16b
	aesd	v1.16b,v16.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v16.16b
	aesimc	v18.16b,v18.16b
	ld1	{v16.4s},[x7],#16
	subs	w6,w6,#2
	aesd	v0.16b,v17.16b
	aesimc	v0.16b,v0.16b
	aesd	v1.16b,v17.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v17.16b
	aesimc	v18.16b,v18.16b
	ld1	{v17.4s},[x7],#16
	b.gt	Loop3x_cbc_dec

	aesd	v0.16b,v16.16b
	aesimc	v0.16b,v0.16b
	aesd	v1.16b,v16.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v16.16b
	aesimc	v18.16b,v18.16b
	eor	v4.16b,v6.16b,v7.16b
	subs	x2,x2,#0x30
	eor	v5.16b,v2.16b,v7.16b
	csel	x6,x2,x6,lo			// x6, w6, is zero at this point
	aesd	v0.16b,v17.16b
	aesimc	v0.16b,v0.16b
	aesd	v1.16b,v17.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v17.16b
	aesimc	v18.16b,v18.16b
	eor	v17.16b,v3.16b,v7.16b
	add	x0,x0,x6		// x0 is adjusted in such way that
					// at exit from the loop v1.16b-v18.16b
					// are loaded with last "words"
	orr	v6.16b,v19.16b,v19.16b
	mov	x7,x3
	aesd	v0.16b,v20.16b
	aesimc	v0.16b,v0.16b
	aesd	v1.16b,v20.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v20.16b
	aesimc	v18.16b,v18.16b
	ld1	{v2.16b},[x0],#16
	aesd	v0.16b,v21.16b
	aesimc	v0.16b,v0.16b
	aesd	v1.16b,v21.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v21.16b
	aesimc	v18.16b,v18.16b
	ld1	{v3.16b},[x0],#16
	aesd	v0.16b,v22.16b
	aesimc	v0.16b,v0.16b
	aesd	v1.16b,v22.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v22.16b
	aesimc	v18.16b,v18.16b
	ld1	{v19.16b},[x0],#16
	aesd	v0.16b,v23.16b
	aesd	v1.16b,v23.16b
	aesd	v18.16b,v23.16b
	ld1	{v16.4s},[x7],#16	// re-pre-load rndkey[0]
	add	w6,w5,#2
	eor	v4.16b,v4.16b,v0.16b
	eor	v5.16b,v5.16b,v1.16b
	eor	v18.16b,v18.16b,v17.16b
	ld1	{v17.4s},[x7],#16	// re-pre-load rndkey[1]
	st1	{v4.16b},[x1],#16
	orr	v0.16b,v2.16b,v2.16b
	st1	{v5.16b},[x1],#16
	orr	v1.16b,v3.16b,v3.16b
	st1	{v18.16b},[x1],#16
	orr	v18.16b,v19.16b,v19.16b
	b.hs	Loop3x_cbc_dec

	cmn	x2,#0x30
	b.eq	Lcbc_done
	nop

Lcbc_dec_tail:
	aesd	v1.16b,v16.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v16.16b
	aesimc	v18.16b,v18.16b
	ld1	{v16.4s},[x7],#16
	subs	w6,w6,#2
	aesd	v1.16b,v17.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v17.16b
	aesimc	v18.16b,v18.16b
	ld1	{v17.4s},[x7],#16
	b.gt	Lcbc_dec_tail

	aesd	v1.16b,v16.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v16.16b
	aesimc	v18.16b,v18.16b
	aesd	v1.16b,v17.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v17.16b
	aesimc	v18.16b,v18.16b
	aesd	v1.16b,v20.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v20.16b
	aesimc	v18.16b,v18.16b
	cmn	x2,#0x20
	aesd	v1.16b,v21.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v21.16b
	aesimc	v18.16b,v18.16b
	eor	v5.16b,v6.16b,v7.16b
	aesd	v1.16b,v22.16b
	aesimc	v1.16b,v1.16b
	aesd	v18.16b,v22.16b
	aesimc	v18.16b,v18.16b
	eor	v17.16b,v3.16b,v7.16b
	aesd	v1.16b,v23.16b
	aesd	v18.16b,v23.16b
	b.eq	Lcbc_dec_one
	eor	v5.16b,v5.16b,v1.16b
	eor	v17.16b,v17.16b,v18.16b
	orr	v6.16b,v19.16b,v19.16b
	st1	{v5.16b},[x1],#16
	st1	{v17.16b},[x1],#16
	b	Lcbc_done

Lcbc_dec_one:
	eor	v5.16b,v5.16b,v18.16b
	orr	v6.16b,v19.16b,v19.16b
	st1	{v5.16b},[x1],#16

Lcbc_done:
	st1	{v6.16b},[x4]
Lcbc_abort:
	ldr	x29,[sp],#16
	ret

.globl	_aes_hw_ctr32_encrypt_blocks
.private_extern	_aes_hw_ctr32_encrypt_blocks

.align	5
_aes_hw_ctr32_encrypt_blocks:
	stp	x29,x30,[sp,#-16]!
	add	x29,sp,#0
	ldr	w5,[x3,#240]

	ldr	w8, [x4, #12]
	ld1	{v0.4s},[x4]

	ld1	{v16.4s,v17.4s},[x3]		// load key schedule...
	sub	w5,w5,#4
	mov	x12,#16
	cmp	x2,#2
	add	x7,x3,x5,lsl#4	// pointer to last 5 round keys
	sub	w5,w5,#2
	ld1	{v20.4s,v21.4s},[x7],#32
	ld1	{v22.4s,v23.4s},[x7],#32
	ld1	{v7.4s},[x7]
	add	x7,x3,#32
	mov	w6,w5
	csel	x12,xzr,x12,lo
#ifndef __ARMEB__
	rev	w8, w8
#endif
	orr	v1.16b,v0.16b,v0.16b
	add	w10, w8, #1
	orr	v18.16b,v0.16b,v0.16b
	add	w8, w8, #2
	orr	v6.16b,v0.16b,v0.16b
	rev	w10, w10
	mov	v1.s[3],w10
	b.ls	Lctr32_tail
	rev	w12, w8
	sub	x2,x2,#3		// bias
	mov	v18.s[3],w12
	b	Loop3x_ctr32

.align	4
Loop3x_ctr32:
	aese	v0.16b,v16.16b
	aesmc	v0.16b,v0.16b
	aese	v1.16b,v16.16b
	aesmc	v1.16b,v1.16b
	aese	v18.16b,v16.16b
	aesmc	v18.16b,v18.16b
	ld1	{v16.4s},[x7],#16
	subs	w6,w6,#2
	aese	v0.16b,v17.16b
	aesmc	v0.16b,v0.16b
	aese	v1.16b,v17.16b
	aesmc	v1.16b,v1.16b
	aese	v18.16b,v17.16b
	aesmc	v18.16b,v18.16b
	ld1	{v17.4s},[x7],#16
	b.gt	Loop3x_ctr32

	aese	v0.16b,v16.16b
	aesmc	v4.16b,v0.16b
	aese	v1.16b,v16.16b
	aesmc	v5.16b,v1.16b
	ld1	{v2.16b},[x0],#16
	orr	v0.16b,v6.16b,v6.16b
	aese	v18.16b,v16.16b
	aesmc	v18.16b,v18.16b
	ld1	{v3.16b},[x0],#16
	orr	v1.16b,v6.16b,v6.16b
	aese	v4.16b,v17.16b
	aesmc	v4.16b,v4.16b
	aese	v5.16b,v17.16b
	aesmc	v5.16b,v5.16b
	ld1	{v19.16b},[x0],#16
	mov	x7,x3
	aese	v18.16b,v17.16b
	aesmc	v17.16b,v18.16b
	orr	v18.16b,v6.16b,v6.16b
	add	w9,w8,#1
	aese	v4.16b,v20.16b
	aesmc	v4.16b,v4.16b
	aese	v5.16b,v20.16b
	aesmc	v5.16b,v5.16b
	eor	v2.16b,v2.16b,v7.16b
	add	w10,w8,#2
	aese	v17.16b,v20.16b
	aesmc	v17.16b,v17.16b
	eor	v3.16b,v3.16b,v7.16b
	add	w8,w8,#3
	aese	v4.16b,v21.16b
	aesmc	v4.16b,v4.16b
	aese	v5.16b,v21.16b
	aesmc	v5.16b,v5.16b
	eor	v19.16b,v19.16b,v7.16b
	rev	w9,w9
	aese	v17.16b,v21.16b
	aesmc	v17.16b,v17.16b
	mov	v0.s[3], w9
	rev	w10,w10
	aese	v4.16b,v22.16b
	aesmc	v4.16b,v4.16b
	aese	v5.16b,v22.16b
	aesmc	v5.16b,v5.16b
	mov	v1.s[3], w10
	rev	w12,w8
	aese	v17.16b,v22.16b
	aesmc	v17.16b,v17.16b
	mov	v18.s[3], w12
	subs	x2,x2,#3
	aese	v4.16b,v23.16b
	aese	v5.16b,v23.16b
	aese	v17.16b,v23.16b

	eor	v2.16b,v2.16b,v4.16b
	ld1	{v16.4s},[x7],#16	// re-pre-load rndkey[0]
	st1	{v2.16b},[x1],#16
	eor	v3.16b,v3.16b,v5.16b
	mov	w6,w5
	st1	{v3.16b},[x1],#16
	eor	v19.16b,v19.16b,v17.16b
	ld1	{v17.4s},[x7],#16	// re-pre-load rndkey[1]
	st1	{v19.16b},[x1],#16
	b.hs	Loop3x_ctr32

	adds	x2,x2,#3
	b.eq	Lctr32_done
	cmp	x2,#1
	mov	x12,#16
	csel	x12,xzr,x12,eq

Lctr32_tail:
	aese	v0.16b,v16.16b
	aesmc	v0.16b,v0.16b
	aese	v1.16b,v16.16b
	aesmc	v1.16b,v1.16b
	ld1	{v16.4s},[x7],#16
	subs	w6,w6,#2
	aese	v0.16b,v17.16b
	aesmc	v0.16b,v0.16b
	aese	v1.16b,v17.16b
	aesmc	v1.16b,v1.16b
	ld1	{v17.4s},[x7],#16
	b.gt	Lctr32_tail

	aese	v0.16b,v16.16b
	aesmc	v0.16b,v0.16b
	aese	v1.16b,v16.16b
	aesmc	v1.16b,v1.16b
	aese	v0.16b,v17.16b
	aesmc	v0.16b,v0.16b
	aese	v1.16b,v17.16b
	aesmc	v1.16b,v1.16b
	ld1	{v2.16b},[x0],x12
	aese	v0.16b,v20.16b
	aesmc	v0.16b,v0.16b
	aese	v1.16b,v20.16b
	aesmc	v1.16b,v1.16b
	ld1	{v3.16b},[x0]
	aese	v0.16b,v21.16b
	aesmc	v0.16b,v0.16b
	aese	v1.16b,v21.16b
	aesmc	v1.16b,v1.16b
	eor	v2.16b,v2.16b,v7.16b
	aese	v0.16b,v22.16b
	aesmc	v0.16b,v0.16b
	aese	v1.16b,v22.16b
	aesmc	v1.16b,v1.16b
	eor	v3.16b,v3.16b,v7.16b
	aese	v0.16b,v23.16b
	aese	v1.16b,v23.16b

	cmp	x2,#1
	eor	v2.16b,v2.16b,v0.16b
	eor	v3.16b,v3.16b,v1.16b
	st1	{v2.16b},[x1],#16
	b.eq	Lctr32_done
	st1	{v3.16b},[x1]

Lctr32_done:
	ldr	x29,[sp],#16
	ret

#endif