1 // errorcheck -0 -l -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.
16 func F1(a uintptr) {} // ERROR "escaping uintptr"
19 func F2(a ...uintptr) {} // ERROR "escaping ...uintptr"
22 func F3(uintptr) {} // ERROR "escaping uintptr"
25 func F4(...uintptr) {} // ERROR "escaping ...uintptr"
30 func (T) M1(a uintptr) {} // ERROR "escaping uintptr"
33 func (T) M2(a ...uintptr) {} // ERROR "escaping ...uintptr"
36 var t int // ERROR "moved to heap"
37 F1(uintptr(unsafe.Pointer(&t))) // ERROR "live at call to F1: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
41 var t2 int // ERROR "moved to heap"
42 F3(uintptr(unsafe.Pointer(&t2))) // ERROR "live at call to F3: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
47 var v int // ERROR "moved to heap"
48 t.M1(uintptr(unsafe.Pointer(&v))) // ERROR "live at call to T.M1: .?autotmp" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
52 var v int // ERROR "moved to heap"
53 F2(0, 1, uintptr(unsafe.Pointer(&v)), 2) // ERROR "live at call to newobject: .?autotmp" "live at call to F2: .?autotmp" "escapes to heap" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
57 var v2 int // ERROR "moved to heap"
58 F4(0, 1, uintptr(unsafe.Pointer(&v2)), 2) // ERROR "live at call to newobject: .?autotmp" "live at call to F4: .?autotmp" "escapes to heap" "stack object .autotmp_[0-9]+ unsafe.Pointer$"
63 var v int // ERROR "moved to heap"
64 t.M2(0, 1, uintptr(unsafe.Pointer(&v)), 2) // ERROR "live at call to newobject: .?autotmp" "live at call to T.M2: .?autotmp" "escapes to heap" "stack object .autotmp_[0-9]+ unsafe.Pointer$"