Source file test/fixedbugs/issue42944.go

     1  // errorcheck -0 -live
     2  
     3  // Copyright 2020 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  // Issue 42944: address of callee args area should only be short-lived
     8  // and never across a call.
     9  
    10  package p
    11  
    12  type T [10]int // trigger DUFFCOPY when passing by value, so it uses the address
    13  
    14  func F() {
    15  	var x T
    16  	var i int
    17  	for {
    18  		x = G(i) // no autotmp live at this and next calls
    19  		H(i, x)
    20  	}
    21  }
    22  
    23  func G(int) T
    24  func H(int, T)
    25  

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