mirror of
https://github.com/golang/go
synced 2024-09-04 23:44:16 +00:00
![Keith Randall](/assets/img/avatar_default.png)
The compiler can crash if the compiled code tries to unconditionally read from a nil pointer. This should cause the generated binary to panic, not the compiler. Fixes #33438 Change-Id: Ic8fa89646d6968e2cc4e27da0ad9286662f8bc49 Reviewed-on: https://go-review.googlesource.com/c/go/+/188760 Reviewed-by: Austin Clements <austin@google.com>
20 lines
544 B
Go
20 lines
544 B
Go
// compile
|
|
|
|
// Copyright 2019 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 p
|
|
|
|
type hasPtrs struct {
|
|
x [2]*int
|
|
// Note: array size needs to be >1 to force this type to be not SSAable.
|
|
// The bug triggers only for OpMove, which is only used for unSSAable types.
|
|
}
|
|
|
|
func main() {
|
|
var x *hasPtrs // Can be local, global, or arg; nil or non-nil.
|
|
var y *hasPtrs = nil // Must initialize to nil.
|
|
*x = *y
|
|
}
|