You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.3 KiB
47 lines
1.3 KiB
// compile
|
|
|
|
// Copyright 2014 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.
|
|
|
|
// Test that code compiles without
|
|
// "internal error: ... recorded as live on entry" errors
|
|
// from the liveness code.
|
|
//
|
|
// This code contains methods or other construct that
|
|
// trigger the generation of wrapper functions with no
|
|
// clear line number (they end up using line 1), and those
|
|
// would have annotations printed if we used -live=1,
|
|
// like the live.go test does.
|
|
// Instead, this test relies on the fact that the liveness
|
|
// analysis turns any non-live parameter on entry into
|
|
// a compile error. Compiling successfully means that bug
|
|
// has been avoided.
|
|
|
|
package main
|
|
|
|
// The liveness analysis used to get confused by the tail return
|
|
// instruction in the wrapper methods generated for T1.M and (*T1).M,
|
|
// causing a spurious "live at entry: ~r1" for the return result.
|
|
|
|
type T struct {
|
|
}
|
|
|
|
func (t *T) M() *int
|
|
|
|
type T1 struct {
|
|
*T
|
|
}
|
|
|
|
// Liveness analysis used to have the VARDEFs in the wrong place,
|
|
// causing a temporary to appear live on entry.
|
|
|
|
func f1(pkg, typ, meth string) {
|
|
panic("value method " + pkg + "." + typ + "." + meth + " called using nil *" + typ + " pointer")
|
|
}
|
|
|
|
func f2() interface{} {
|
|
return new(int)
|
|
}
|
|
|