1 files changed, 55 insertions, 0 deletions
diff --git a/debuginfo-tests/dexter-tests/nrvo-string.cpp b/debuginfo-tests/dexter-tests/nrvo-string.cpp
new file mode 100644
index 000000000000..79561dc6e2f3
--- /dev/null
+++ b/debuginfo-tests/dexter-tests/nrvo-string.cpp
@@ -0,0 +1,55 @@
+// Purpose:
+//     This ensures that DW_OP_deref is inserted when necessary, such as when
+//     NRVO of a string object occurs in C++.
+//
+// REQUIRES: !asan, system-linux, lldb
+//           Zorg configures the ASAN stage2 bots to not build the asan
+//           compiler-rt. Only run this test on non-asanified configurations.
+//
+// RUN: %dexter --fail-lt 1.0 -w \
+// RUN:     --builder 'clang' --debugger 'lldb' \
+// RUN:     --cflags "-O0 -glldb -fno-exceptions" -- %s
+//
+// RUN: %dexter --fail-lt 1.0 -w \
+// RUN:     --builder 'clang' --debugger 'lldb' \
+// RUN:     --cflags "-O1 -glldb -fno-exceptions" -- %s
+//
+// PR34513
+volatile int sideeffect = 0;
+void __attribute__((noinline)) stop() { sideeffect++; }
+
+struct string {
+  string() {}
+  string(int i) : i(i) {}
+  ~string() {}
+  int i = 0;
+};
+string get_string() {
+  string unused;
+  string output = 3;
+  stop(); // DexLabel('string-nrvo')
+  return output;
+}
+void some_function(int) {}
+struct string2 {
+  string2() = default;
+  string2(string2 &&other) { i = other.i; }
+  int i;
+};
+string2 get_string2() {
+  string2 output;
+  output.i = 5;
+  some_function(output.i);
+  // Test that the debugger can get the value of output after another
+  // function is called.
+  stop(); // DexLabel('string2-nrvo')
+  return output;
+}
+int main() {
+  get_string();
+  get_string2();
+}
+
+// DexExpectWatchValue('output.i', 3, on_line='string-nrvo')
+// DexExpectWatchValue('output.i', 5, on_line='string2-nrvo')
+