1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
// 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
|
