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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
| commit | 43a123c1ae6613b3efeed291fa552ecd909d3acf (patch) | |
| tree | fd92518b7024bc74031f78a1cf9e454b65e73665 /src/internal/bytealg/equal_loong64.s | |
| parent | Initial commit. (diff) | |
| download | golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.tar.xz golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.zip | |
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/internal/bytealg/equal_loong64.s')
| -rw-r--r-- | src/internal/bytealg/equal_loong64.s | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/internal/bytealg/equal_loong64.s b/src/internal/bytealg/equal_loong64.s new file mode 100644 index 0000000..dcdde89 --- /dev/null +++ b/src/internal/bytealg/equal_loong64.s @@ -0,0 +1,52 @@ +// 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(SB),NOSPLIT|NOFRAME,$0-25 + MOVV a+0(FP), R4 + MOVV b+8(FP), R5 + BEQ R4, R5, eq + MOVV size+16(FP), R6 + ADDV R4, R6, R7 +loop: + BNE R4, R7, test + MOVV $1, R4 + MOVB R4, ret+24(FP) + RET +test: + MOVBU (R4), R9 + ADDV $1, R4 + MOVBU (R5), R10 + ADDV $1, R5 + BEQ R9, R10, loop + + MOVB R0, ret+24(FP) + RET +eq: + MOVV $1, R4 + MOVB R4, ret+24(FP) + RET + +// memequal_varlen(a, b unsafe.Pointer) bool +TEXT runtime·memequal_varlen(SB),NOSPLIT,$40-17 + MOVV a+0(FP), R4 + MOVV b+8(FP), R5 + 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 + MOVB R4, ret+16(FP) + RET +eq: + MOVV $1, R4 + MOVB R4, ret+16(FP) + RET |