// Copyright 2022 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

#include "go_asm.h"

#include "textflag.h"

#define REGCTXT R29

// memequal(a, b unsafe.Pointer, size uintptr) bool

TEXT runtime·memequal<ABIInternal>(SB),NOSPLIT|NOFRAME,$0-25

BEQ R4, R5, eq

ADDV R4, R6, R7

PCALIGN $16

loop:

BNE R4, R7, test

MOVV $1, R4

RET

test:

MOVBU (R4), R9

ADDV $1, R4

MOVBU (R5), R10

ADDV $1, R5

BEQ R9, R10, loop

MOVB R0, R4

RET

eq:

MOVV $1, R4

RET

// memequal_varlen(a, b unsafe.Pointer) bool

TEXT runtime·memequal_varlen<ABIInternal>(SB),NOSPLIT,$40-17

BEQ R4, R5, eq

MOVV 8(REGCTXT), R6 // compiler stores size at offset 8 in the closure

MOVV R4, 8(R3)

MOVV R5, 16(R3)

MOVV R6, 24(R3)

JAL runtime·memequal(SB)

MOVBU 32(R3), R4

RET

eq:

MOVV $1, R4

RET