1 files changed, 40 insertions, 0 deletions
diff --git a/debuginfo-tests/dexter-tests/nrvo.cpp b/debuginfo-tests/dexter-tests/nrvo.cpp
new file mode 100644
index 00000000000..9ce0197766a
--- /dev/null
+++ b/debuginfo-tests/dexter-tests/nrvo.cpp
@@ -0,0 +1,40 @@
+// This ensures that DW_OP_deref is inserted when necessary, such as when NRVO
+// of a string object occurs in C++.
+//
+// REQUIRES: system-windows
+//
+// RUN: %dexter --fail-lt 1.0 -w --builder 'clang-cl_vs2015' \
+// RUN:      --debugger 'dbgeng' --cflags '/Z7 /Zi' --ldflags '/Z7 /Zi' -- %s
+
+struct string {
+  string() {}
+  string(int i) : i(i) {}
+  ~string() {}
+  int i = 0;
+};
+string get_string() {
+  string unused;
+  string result = 3;
+  return result; // DexLabel('readresult1')
+}
+void some_function(int) {}
+struct string2 {
+  string2() = default;
+  string2(string2 &&other) { i = other.i; }
+  int i;
+};
+string2 get_string2() {
+  string2 result;
+  result.i = 5;
+  some_function(result.i);
+  // Test that the debugger can get the value of result after another
+  // function is called.
+  return result; // DexLabel('readresult2')
+}
+int main() {
+  get_string();
+  get_string2();
+}
+
+// DexExpectWatchValue('result.i', 3, on_line='readresult1')
+// DexExpectWatchValue('result.i', 5, on_line='readresult2')