golang issue6247 代码
文件路径：/test/fixedbugs/issue6247.go
/ compile
/ Copyright 2013 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 6247: 5g used to be confused by the numbering
/ of floating-point registers.
package main
var p map[string]interface{}
var v interface{}
func F() {
p["hello"] = v.(complex128) * v.(complex128)
}