Initial commit: Go 1.23 release state

test/fixedbugs/issue57955.go

@@ -0,0 +1,43 @@
+// compile
+
+// Copyright 2023 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.
+
+// Issue 57955: ARM assembler fails to handle certain cases.
+
+package main
+
+func main() {
+	Decode[int16](nil)
+	Decode[uint16](nil)
+	Decode[float64](nil)
+}
+
+func DecodeInt16(b []byte) (int16, int) {
+	return 0, 0
+}
+
+func DecodeUint16(b []byte) (uint16, int) {
+	return 0, 0
+}
+
+func DecodeFloat64(b []byte) (float64, int) {
+	return 0, 0
+}
+
+func Decode[T any](b []byte) (T, int) {
+	switch any(*new(T)).(type) {
+	case int16:
+		v, n := DecodeInt16(b)
+		return any(v).(T), n
+	case uint16:
+		v, n := DecodeUint16(b)
+		return any(v).(T), n
+	case float64:
+		v, n := DecodeFloat64(b)
+		return any(v).(T), n
+	default:
+		panic("")
+	}
+}