1 // errorcheck -0 -m -live
3 // Copyright 2016 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.
7 // Test escape analysis and liveness inferred for uintptrescapes functions.
17 func F1(a uintptr) {} // ERROR "escaping uintptr"
21 func F2(a ...uintptr) {} // ERROR "escaping ...uintptr" "a does not escape"
25 func F3(uintptr) {} // ERROR "escaping uintptr"
29 func F4(...uintptr) {} // ERROR "escaping ...uintptr"
32 var t int // ERROR "moved to heap"
33 F1(uintptr(unsafe.Pointer(&t))) // ERROR "live at call to F1: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
34 var t2 int // ERROR "moved to heap"
35 F3(uintptr(unsafe.Pointer(&t2))) // ERROR "live at call to F3: .?autotmp"
39 var v int // ERROR "moved to heap"
40 F2(0, 1, uintptr(unsafe.Pointer(&v)), 2) // ERROR "live at call to newobject: .?autotmp" "live at call to F2: .?autotmp" "escapes to heap" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
41 var v2 int // ERROR "moved to heap"
42 F4(0, 1, uintptr(unsafe.Pointer(&v2)), 2) // ERROR "live at call to newobject: .?autotmp" "live at call to F4: .?autotmp" "escapes to heap"