Initial commit: Go 1.23 release state

test/fixedbugs/bug513.go

@@ -0,0 +1,21 @@
+// run -race -gcflags=all=-d=checkptr=0
+
+//go:build ((linux && amd64) || (linux && ppc64le) || (darwin && amd64) || (freebsd && amd64) || (netbsd && amd64) || (windows && amd64)) && cgo
+
+// Copyright 2021 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.
+
+// Although -race turns on -d=checkptr, the explicit -d=checkptr=0
+// should override it.
+
+package main
+
+import "unsafe"
+
+var v1 = new([2]int16)
+var v2 *[3]int64
+
+func main() {
+	v2 = (*[3]int64)(unsafe.Pointer(uintptr(unsafe.Pointer(&(*v1)[0]))))
+}