| // run |
| |
| // 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. |
| |
| // Make sure FuncForPC won't panic when given a pc which |
| // lies between two functions. |
| |
| package main |
| |
| import ( |
| "runtime" |
| ) |
| |
| func main() { |
| var stack [1]uintptr |
| runtime.Callers(1, stack[:]) |
| f() // inlined function, to give main some inlining info |
| for i := uintptr(0); true; i++ { |
| f := runtime.FuncForPC(stack[0] + i) |
| if f.Name() != "main.main" && f.Name() != "main.f" { |
| // Reached next function successfully. |
| break |
| } |
| } |
| } |
| |
| func f() { |
| sink = 0 // one instruction which can't be removed |
| } |
| |
| var sink int |
