From c0b48088747387dd36c652afc37f854d5bba3c24 Mon Sep 17 00:00:00 2001
From: Jonathan Roelofs <jonathan@codesourcery.com>
Date: Wed, 21 Jan 2015 19:05:37 +0000
Subject: Rename all of the tests in preparation for merging lit configs with
 libcxx

http://reviews.llvm.org/D7101


git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@226691 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/backtrace_test.pass.cpp | 63 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 test/backtrace_test.pass.cpp

(limited to 'test/backtrace_test.pass.cpp')

diff --git a/test/backtrace_test.pass.cpp b/test/backtrace_test.pass.cpp
new file mode 100644
index 0000000..f54a478
--- /dev/null
+++ b/test/backtrace_test.pass.cpp
@@ -0,0 +1,63 @@
+//===---------------------- backtrace_test.cpp ----------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+// XFAIL: arm
+#include <assert.h>
+#include <stddef.h>
+#include <unwind.h>
+
+extern "C" _Unwind_Reason_Code
+trace_function(struct _Unwind_Context* context, void* ntraced) {
+  (*reinterpret_cast<size_t*>(ntraced))++;
+  // We should never have a call stack this deep...
+  assert(*reinterpret_cast<size_t*>(ntraced) < 20);
+  return _URC_NO_REASON;
+}
+
+void call3_throw(size_t* ntraced) {
+  try {
+    _Unwind_Backtrace(trace_function, ntraced);
+  } catch (...) {
+    assert(false);
+  }
+}
+
+void call3_nothrow(size_t* ntraced) {
+  _Unwind_Backtrace(trace_function, ntraced);
+}
+
+void call2(size_t* ntraced, bool do_throw) {
+  if (do_throw) {
+    call3_throw(ntraced);
+  } else {
+    call3_nothrow(ntraced);
+  }
+}
+
+void call1(size_t* ntraced, bool do_throw) {
+  call2(ntraced, do_throw);
+}
+
+int main() {
+  size_t throw_ntraced = 0;
+  size_t nothrow_ntraced = 0;
+
+  call1(&nothrow_ntraced, false);
+
+  try {
+    call1(&throw_ntraced, true);
+  } catch (...) {
+    assert(false);
+  }
+
+  // Different platforms (and different runtimes) will unwind a different number
+  // of times, so we can't make any better assumptions than this.
+  assert(nothrow_ntraced > 1);
+  assert(throw_ntraced == nothrow_ntraced); // Make sure we unwind through catch
+  return 0;
+}
-- 
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