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swift-mirror/test/Backtracing/StackOverflow.test
Alastair Houghton e47788232c [Backtracing][Test] Use !, not not. 
`not` works on Windows, but not on Linux or Darwin.

rdar://101623384
2026-02-06 08:53:16 +00:00

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This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
// RUN: %empty-directory(%t)
// RUN: %target-build-swift %S/Inputs/StackOverflow.swift -parse-as-library -Onone %swift-debug-flags -o %t/stack-overflow.exe
// RUN: %target-codesign %t/stack-overflow.exe
// RUN: ! env SWIFT_BACKTRACE=enable=yes,cache=no %target-run %t/stack-overflow.exe > %t/StackOverflow.out 2>&1
// RUN: %FileCheck %s < %t/StackOverflow.out
// RUN: ! env SWIFT_BACKTRACE=limit=18,top=6,enable=yes,cache=no %target-run %t/stack-overflow.exe > %t/Limited.out 2>&1
// RUN: %FileCheck %s --check-prefix LIMITED < %t/Limited.out
// RUN: ! env SWIFT_BACKTRACE=preset=friendly,enable=yes,cache=no %target-run %t/stack-overflow.exe > %t/Friendly.out 2>&1
// RUN: %FileCheck %s --check-prefix FRIENDLY < %t/Friendly.out
// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime
// UNSUPPORTED: asan
// REQUIRES: executable_test
// REQUIRES: backtracing
// REQUIRES: OS=macosx || OS=linux-gnu || OS=windows-msvc
// 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|Stack overflow)}} at 0x{{[0-9a-f]+}} ***
// CHECK: Thread 0 {{(".*" )?}}crashed:
// CHECK: 0 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift
// CHECK-NEXT: 1 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 2 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 3 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 4 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 5 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 6 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 7 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 8 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 9 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 10 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 11 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 12 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 13 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 14 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 15 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 16 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 17 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 18 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 19 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 20 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 21 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 22 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 23 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 24 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 25 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 26 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 27 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 28 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 29 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 30 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 31 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 32 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 33 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 34 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 35 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 36 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 37 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 38 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 39 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 40 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 41 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 42 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 43 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 44 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 45 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: 46 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: ...
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// CHECK-NEXT: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// The exact number of recursion frames varies from platform to platform;
// on macOS, there is a hidden dyld frame at the very top, which takes up one
// of the 16 frames. On Linux, we may have a couple of libc frames as well.
// CHECK: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} static StackOverflow.main() + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:11:5
// CHECK-NEXT: {{[0-9]+}} [ra] [system] 0x{{[0-9a-f]+}} static StackOverflow.$main() + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}<compiler-generated>
// CHECK-NEXT: {{[0-9]+}} [ra] [system] 0x{{[0-9a-f]+}} main + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift
// CHECK: Registers:
// CHECK: Images ({{[0-9]+}} omitted):
// CHECK: {{0x[0-9a-f]+}}–{{0x[0-9a-f]+}}{{ +}}{{[0-9a-f]+|<no build ID>}}{{ +}}stack-overflow.exe{{ +}}{{.*[\\/]}}stack-overflow.exe
// LIMITED: *** Program crashed: {{(Bad pointer dereference|Stack overflow)}} at 0x{{[0-9a-f]+}} ***
// LIMITED: Thread 0 {{(".*" )?}}crashed:
// LIMITED: 0 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift
// LIMITED-NEXT: 1 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// LIMITED-NEXT: 2 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// LIMITED-NEXT: 3 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// LIMITED-NEXT: 4 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// LIMITED-NEXT: 5 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// LIMITED-NEXT: 6 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// LIMITED-NEXT: 7 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// LIMITED-NEXT: 8 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// LIMITED-NEXT: 9 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// LIMITED-NEXT: 10 [ra] 0x{{[0-9a-f]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// LIMITED-NEXT: ...
// N.B. There can be platform differences surrounding the exact frame counts
// LIMITED: {{[0-9]+}} [ra] 0x{{[0-9a-f]+}} static StackOverflow.main() + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:11:5
// LIMITED-NEXT: {{[0-9]+}} [ra] [system] 0x{{[0-9a-f]+}} static StackOverflow.$main() + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}<compiler-generated>
// LIMITED-NEXT: {{[0-9]+}} [ra] [system] 0x{{[0-9a-f]+}} main + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift
// FRIENDLY: *** Program crashed: {{(Bad pointer dereference|Stack overflow)}} at 0x{{[0-9a-f]+}} ***
// FRIENDLY: Thread 0 {{(".*" )?}}crashed:
// FRIENDLY: {{[ ]}}0 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift
// SKIP-FRIENDLY: 1│ func recurse(_ level: Int) {
// SKIP-FRIENDLY-NEXT: │ ▲
// SKIP-FRIENDLY-NEXT: 2│ if level % 100000 == 0 {
// FRIENDLY: 1 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// SKIP-FRIENDLY: 2│ if level % 100000 == 0 {
// SKIP-FRIENDLY-NEXT: 3│ print(level)
// SKIP-FRIENDLY-NEXT: 4│ }
// SKIP-FRIENDLY-NEXT: 5│ recurse(level + 1)
// SKIP-FRIENDLY-NEXT: │ ▲
// SKIP-FRIENDLY-NEXT: 6│ }
// FRIENDLY: 2 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 3 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 4 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 5 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 6 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 7 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 8 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 9 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 10 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 11 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 12 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 13 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 14 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 15 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 16 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 17 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 18 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 19 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 20 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 21 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 22 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 23 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 24 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 25 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 26 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 27 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 28 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 29 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 30 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 31 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 32 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 33 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 34 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 35 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 36 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 37 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 38 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 39 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 40 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 41 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 42 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 43 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 44 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 45 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: 46 recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: ...
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// FRIENDLY-NEXT: {{[0-9]+}} recurse(_:) + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:5:3
// N.B. There can be platform differences surrounding the exact frame counts
// FRIENDLY: {{[0-9]+}} static StackOverflow.main() + {{[0-9]+}} in stack-overflow.exe at {{.*[\\/]}}StackOverflow.swift:11:5
// FRIENDLY: 9| struct StackOverflow {
// FRIENDLY-NEXT: 10| static func main() {
// FRIENDLY-NEXT: 11| recurse(1)
// FRIENDLY-NEXT: | ^
// FRIENDLY-NEXT: 12| }
// FRIENDLY-NEXT: 13| }
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