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StackOverflow.swift
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// RUN: %empty-directory(%t)
// RUN: %target-build-swift %s -parse-as-library -Onone -g -o %t/StackOverflow
// RUN: %target-codesign %t/StackOverflow
// RUN: (env SWIFT_BACKTRACE=enable=yes,cache=no %target-run %t/StackOverflow || true) | %FileCheck %s
// RUN: (env SWIFT_BACKTRACE=limit=16,top=4,enable=yes,cache=no %target-run %t/StackOverflow || true) | %FileCheck %s --check-prefix LIMITED
// RUN: (env SWIFT_BACKTRACE=preset=friendly,enable=yes,cache=no %target-run %t/StackOverflow || true) | %FileCheck %s --check-prefix FRIENDLY
// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime
// REQUIRES: executable_test
// REQUIRES: backtracing
// REQUIRES: OS=macosx
func recurse(_ level: Int) {
if level % 100000 == 0 {
print(level)
}
recurse(level + 1)
}
@main
struct StackOverflow {
static func main() {
recurse(1)
}
}
// FIXME: We have to allow all the line numbers below to be off-by-one because
// of a CoreSymbolication bug. This also means we have to skip checking the
// source code output because currently, it's pointing at the wrong line :-(
// CHECK: *** Program crashed: Bad pointer dereference at 0x{{[0-9a-f]+}} ***
// CHECK: Thread 0 crashed:
// CHECK: 0 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:{{[0-9]+}}
// CHECK-NEXT: 1 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 2 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 3 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 4 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 5 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 6 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 7 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 8 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 9 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 10 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 11 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 12 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 13 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 14 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 15 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 16 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 17 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 18 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 19 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 20 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 21 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 22 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 23 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 24 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 25 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 26 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 27 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 28 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 29 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 30 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 31 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 32 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 33 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 34 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 35 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 36 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 37 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 38 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 39 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 40 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 41 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 42 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 43 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 44 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 45 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: 46 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: ...
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} static StackOverflow.main() + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:24:5
// CHECK-NEXT: {{[0-9]+}} [ra] [system] 0x{{[0-9a-f]+}} static StackOverflow.$main() + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:21:1
// CHECK-NEXT: {{[0-9]+}} [ra] [system] 0x{{[0-9a-f]+}} main + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift
// CHECK: Registers:
// CHECK: Images ({{[0-9]+}} omitted):
// CHECK: {{0x[0-9a-f]+}}–{{0x[0-9a-f]+}}{{ +}}{{[0-9a-f]+}}{{ +}}StackOverflow{{ +}}{{.*}}/StackOverflow
// LIMITED: *** Program crashed: Bad pointer dereference at 0x{{[0-9a-f]+}} ***
// LIMITED: Thread 0 crashed:
// LIMITED: 0 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift
// LIMITED-NEXT: 1 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// LIMITED-NEXT: 2 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// LIMITED-NEXT: 3 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// LIMITED-NEXT: 4 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// LIMITED-NEXT: 5 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// LIMITED-NEXT: 6 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// LIMITED-NEXT: 7 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// LIMITED-NEXT: 8 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// LIMITED-NEXT: 9 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// LIMITED-NEXT: 10 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// LIMITED-NEXT: ...
// LIMITED-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} static StackOverflow.main() + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:24:5
// LIMITED-NEXT: {{[0-9]+}} [ra] [system] 0x{{[0-9a-f]+}} static StackOverflow.$main() + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:21:1
// LIMITED-NEXT: {{[0-9]+}} [ra] [system] 0x{{[0-9a-f]+}} main + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift
// FRIENDLY: *** Program crashed: Bad pointer dereference at 0x{{[0-9a-f]+}} ***
// FRIENDLY: Thread 0 crashed:
// FRIENDLY: {{[ ]}}0 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift
// SKIP-FRIENDLY: 9│ // REQUIRES: executable_test
// SKIP-FRIENDLY-NEXT: 10│ // REQUIRES: OS=macosx
// SKIP-FRIENDLY-NEXT: 11│
// SKIP-FRIENDLY-NEXT: 12│ func recurse(_ level: Int) {
// SKIP-FRIENDLY-NEXT: │ ▲
// SKIP-FRIENDLY-NEXT: 13│ if level % 100000 == 0 {
// FRIENDLY: 1 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// SKIP-FRIENDLY: 13│ if level % 100000 == 0 {
// SKIP-FRIENDLY-NEXT: 14│ print(level)
// SKIP-FRIENDLY-NEXT: 15│ }
// SKIP-FRIENDLY-NEXT: 16│ recurse(level + 1)
// SKIP-FRIENDLY-NEXT: │ ▲
// SKIP-FRIENDLY-NEXT: 17│ }
// FRIENDLY: 2 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 3 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 4 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 5 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 6 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 7 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 8 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 9 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 10 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 11 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 12 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 13 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 14 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 15 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 16 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 17 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 18 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 19 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 20 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 21 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 22 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 23 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 24 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 25 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 26 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 27 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 28 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 29 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 30 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 31 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 32 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 33 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 34 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 35 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 36 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 37 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 38 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 39 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 40 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 41 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 42 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 43 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 44 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 45 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: 46 recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: ...
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:18:3
// FRIENDLY-NEXT: {{[0-9]+}} static StackOverflow.main() + {{[0-9]+}} in StackOverflow at {{.*}}/StackOverflow.swift:24:5
// SKIP-FRIENDLY: 19│ @main
// SKIP-FRIENDLY-NEXT: 20│ struct StackOverflow {
// SKIP-FRIENDLY-NEXT: 21│ static func main() {
// SKIP-FRIENDLY-NEXT: 22│ recurse(1)
// SKIP-FRIENDLY-NEXT: │ ▲
// SKIP-FRIENDLY-NEXT: 23│ }