Initial commit: Go 1.23 release state

test/tighten.go

@@ -0,0 +1,22 @@
+// errorcheck -0 -d=ssa/tighten/debug=1
+
+//go:build arm64
+
+// 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.
+
+package main
+
+var (
+	e  any
+	ts uint16
+)
+
+func moveValuesWithMemoryArg(len int) {
+	for n := 0; n < len; n++ {
+		// Load of e.data is lowed as a MOVDload op, which has a memory
+		// argument. It's moved near where it's used.
+		_ = e != ts // ERROR "MOVDload is moved$" "MOVDaddr is moved$"
+	}
+}