Initial commit: Go 1.23 release state

src/internal/bytealg/equal_wasm.s

@@ -0,0 +1,77 @@
+// 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.
+
+#include "go_asm.h"
+#include "textflag.h"
+
+// memequal(p, q unsafe.Pointer, size uintptr) bool
+TEXT runtime·memequal(SB), NOSPLIT, $0-25
+	Get SP
+	I64Load a+0(FP)
+	I64Load b+8(FP)
+	I64Load size+16(FP)
+	Call memeqbody<>(SB)
+	I64Store8 ret+24(FP)
+	RET
+
+// memequal_varlen(a, b unsafe.Pointer) bool
+TEXT runtime·memequal_varlen(SB), NOSPLIT, $0-17
+	Get SP
+	I64Load a+0(FP)
+	I64Load b+8(FP)
+	I64Load 8(CTXT) // compiler stores size at offset 8 in the closure
+	Call memeqbody<>(SB)
+	I64Store8 ret+16(FP)
+	RET
+
+// params: a, b, len
+// ret: 0/1
+TEXT memeqbody<>(SB), NOSPLIT, $0-0
+	Get R0
+	Get R1
+	I64Eq
+	If
+		I64Const $1
+		Return
+	End
+
+loop:
+	Loop
+		Get R2
+		I64Eqz
+		If
+			I64Const $1
+			Return
+		End
+
+		Get R0
+		I32WrapI64
+		I64Load8U $0
+		Get R1
+		I32WrapI64
+		I64Load8U $0
+		I64Ne
+		If
+			I64Const $0
+			Return
+		End
+
+		Get R0
+		I64Const $1
+		I64Add
+		Set R0
+
+		Get R1
+		I64Const $1
+		I64Add
+		Set R1
+
+		Get R2
+		I64Const $1
+		I64Sub
+		Set R2
+
+		Br loop
+	End
+	UNDEF