1// Copyright 2022 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5#include "go_asm.h"
6#include "textflag.h"
7
8#define REGCTXT R29
9
10// memequal(a, b unsafe.Pointer, size uintptr) bool
11TEXT runtime·memequal<ABIInternal>(SB),NOSPLIT|NOFRAME,$0-25
12 BEQ R4, R5, eq
13 ADDV R4, R6, R7
14 PCALIGN $16
15loop:
16 BNE R4, R7, test
17 MOVV $1, R4
18 RET
19test:
20 MOVBU (R4), R9
21 ADDV $1, R4
22 MOVBU (R5), R10
23 ADDV $1, R5
24 BEQ R9, R10, loop
25
26 MOVB R0, R4
27 RET
28eq:
29 MOVV $1, R4
30 RET
31
32// memequal_varlen(a, b unsafe.Pointer) bool
33TEXT runtime·memequal_varlen<ABIInternal>(SB),NOSPLIT,$40-17
34 BEQ R4, R5, eq
35 MOVV 8(REGCTXT), R6 // compiler stores size at offset 8 in the closure
36 MOVV R4, 8(R3)
37 MOVV R5, 16(R3)
38 MOVV R6, 24(R3)
39 JAL runtime·memequal(SB)
40 MOVBU 32(R3), R4
41 RET
42eq:
43 MOVV $1, R4
44 RET
View as plain text