Add EH test case checking that handlers in noexcept functions can still unwind

llvm-svn: 209944

libcxxabi/test/catch_in_noexcept.cpp

@@ -0,0 +1,34 @@
+//===---------------------- catch_in_noexcept.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.
+//
+//===----------------------------------------------------------------------===//
+
+#include <exception>
+#include <stdlib.h>
+#include <assert.h>
+
+struct A {};
+
+// Despite being marked as noexcept, this function must have an EHT entry that
+// is not 'cantunwind', so that the unwinder can correctly deal with the throw.
+void f1() noexcept
+{
+    try {
+        A a;
+        throw a;
+        assert(false);
+    } catch (...) {
+        assert(true);
+        return;
+    }
+    assert(false);
+}
+
+int main()
+{
+    f1();
+}