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// Copyright 2019 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 CTXT S4
// func memequal(a, b unsafe.Pointer, size uintptr) bool
TEXT runtime·memequal(SB),NOSPLIT|NOFRAME,$0-25
MOV a+0(FP), A1
MOV b+8(FP), A2
BEQ A1, A2, eq
MOV size+16(FP), A3
ADD A1, A3, A4
loop:
BEQ A1, A4, eq
MOVBU (A1), A6
ADD $1, A1
MOVBU (A2), A7
ADD $1, A2
BEQ A6, A7, loop
MOVB ZERO, ret+24(FP)
RET
eq:
MOV $1, A1
MOVB A1, ret+24(FP)
RET
// func memequal_varlen(a, b unsafe.Pointer) bool
TEXT runtime·memequal_varlen(SB),NOSPLIT,$40-17
MOV a+0(FP), A1
MOV b+8(FP), A2
BEQ A1, A2, eq
MOV 8(CTXT), A3 // compiler stores size at offset 8 in the closure
MOV A1, 8(X2)
MOV A2, 16(X2)
MOV A3, 24(X2)
CALL runtime·memequal(SB)
MOVBU 32(X2), A1
MOVB A1, ret+16(FP)
RET
eq:
MOV $1, A1
MOVB A1, ret+16(FP)
RET
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