Adding upstream version 1.17.13.upstream/1.17.13upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 63 insertions, 0 deletions

diff --git a/src/internal/bytealg/equal_mipsx.s b/src/internal/bytealg/equal_mipsx.s
new file mode 100644
index 0000000..11e5549
--- /dev/null
+++ b/src/internal/bytealg/equal_mipsx.s
@@ -0,0 +1,63 @@
+// Copyright 2018 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.
+
+//go:build mips || mipsle
+// +build mips mipsle
+
+#include "go_asm.h"
+#include "textflag.h"
+
+#define	REGCTXT	R22
+
+// memequal(a, b unsafe.Pointer, size uintptr) bool
+TEXT runtime·memequal(SB),NOSPLIT,$0-13
+	MOVW	a+0(FP), R1
+	MOVW	b+4(FP), R2
+	BEQ	R1, R2, eq
+	MOVW	size+8(FP), R3
+	ADDU	R1, R3, R4
+loop:
+	BNE	R1, R4, test
+	MOVW	$1, R1
+	MOVB	R1, ret+12(FP)
+	RET
+test:
+	MOVBU	(R1), R6
+	ADDU	$1, R1
+	MOVBU	(R2), R7
+	ADDU	$1, R2
+	BEQ	R6, R7, loop
+
+	MOVB	R0, ret+12(FP)
+	RET
+eq:
+	MOVW	$1, R1
+	MOVB	R1, ret+12(FP)
+	RET
+
+// memequal_varlen(a, b unsafe.Pointer) bool
+TEXT runtime·memequal_varlen(SB),NOSPLIT,$0-9
+	MOVW	a+0(FP), R1
+	MOVW	b+4(FP), R2
+	BEQ	R1, R2, eq
+	MOVW	4(REGCTXT), R3	// compiler stores size at offset 4 in the closure
+	ADDU	R1, R3, R4
+loop:
+	BNE	R1, R4, test
+	MOVW	$1, R1
+	MOVB	R1, ret+8(FP)
+	RET
+test:
+	MOVBU	(R1), R6
+	ADDU	$1, R1
+	MOVBU	(R2), R7
+	ADDU	$1, R2
+	BEQ	R6, R7, loop
+
+	MOVB	R0, ret+8(FP)
+	RET
+eq:
+	MOVW	$1, R1
+	MOVB	R1, ret+8(FP)
+	RET