SimpleBacktrace.swift

// RUN: %empty-directory(%t)
// RUN: %target-build-swift %s -Xfrontend -parse-as-library -Onone -o %t/SimpleBacktrace
// RUN: %target-codesign %t/SimpleBacktrace
// RUN: %target-run %t/SimpleBacktrace | %FileCheck %s

// REQUIRES: executable_test
// REQUIRES: backtracing
// REQUIRES: OS=macosx || OS=linux-gnu

// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime

import Runtime

func level1(){
level2()
}

func level2(){
level3()
}

func level3(){
level4()
}

func level4(){
level5()
}

func level5(){
letbacktrace=try!Backtrace.capture()

 // CHECK: 0{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
 // CHECK-NEXT: 1{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
 // CHECK-NEXT: 2{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
 // CHECK-NEXT: 3{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
 // CHECK-NEXT: 4{{[ \t]+}}0x{{[0-9a-f]+}} [ra]
 // CHECK-NEXT: 5{{[ \t]+}}0x{{[0-9a-f]+}} [ra]

print(backtrace)
}

@main
structSimpleBacktrace{
staticfunc main(){
level1()
}
}