| // 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 |