modernc.org/gc@v1.0.1-0.20240304020402-f0dba7c97c2b/testdata/errchk/test/fixedbugs/issue22458.go (about)

     1  // compile
     2  
     3  // Copyright 2017 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  // Make sure KeepAlive introduces a use of the spilled variable.
     8  
     9  package main
    10  
    11  import "runtime"
    12  
    13  type node struct {
    14          next *node
    15  }
    16  
    17  var x bool
    18  
    19  func main() {
    20          var head *node
    21          for x {
    22                  head = &node{head}
    23          }
    24  
    25          runtime.KeepAlive(head)
    26  }