3 files changed, 55 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/lang/cpp/frame-var-anon-unions/Makefile b/packages/Python/lldbsuite/test/lang/cpp/frame-var-anon-unions/Makefile
new file mode 100644
index 000000000000..314f1cb2f077
--- /dev/null
+++ b/packages/Python/lldbsuite/test/lang/cpp/frame-var-anon-unions/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
diff --git a/packages/Python/lldbsuite/test/lang/cpp/frame-var-anon-unions/TestFrameVariableAnonymousUnions.py b/packages/Python/lldbsuite/test/lang/cpp/frame-var-anon-unions/TestFrameVariableAnonymousUnions.py
new file mode 100644
index 000000000000..396a637041cb
--- /dev/null
+++ b/packages/Python/lldbsuite/test/lang/cpp/frame-var-anon-unions/TestFrameVariableAnonymousUnions.py
@@ -0,0 +1,27 @@
+"""
+Tests that frame variable looks into anonymous unions
+"""
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+class FrameVariableAnonymousUnionsTestCase(TestBase):
+    
+    mydir = TestBase.compute_mydir(__file__)
+    
+    def test_with_run_command(self):
+        """Tests that frame variable looks into anonymous unions"""
+        self.build()
+        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
+
+        line = line_number('main.cpp', '// break here')
+        lldbutil.run_break_set_by_file_and_line (self, "main.cpp", line, num_expected_locations=-1, loc_exact=False)
+
+        self.runCmd("process launch", RUN_SUCCEEDED)
+
+        self.expect('frame variable -f x i', substrs=['ffffff41'])
+        self.expect('frame variable c', substrs=["'A"])
+
+        self.expect('frame variable x', matching=False, substrs=['3'])
+        self.expect('frame variable y', matching=False, substrs=["'B'"])
+        self.expect('frame variable z', matching=False, substrs=['14'])
diff --git a/packages/Python/lldbsuite/test/lang/cpp/frame-var-anon-unions/main.cpp b/packages/Python/lldbsuite/test/lang/cpp/frame-var-anon-unions/main.cpp
new file mode 100644
index 000000000000..494b846336ff
--- /dev/null
+++ b/packages/Python/lldbsuite/test/lang/cpp/frame-var-anon-unions/main.cpp
@@ -0,0 +1,23 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+int main() {
+  union {
+    int i;
+    char c;
+  };
+  struct {
+    int x;
+    char y;
+    short z;
+  } s{3,'B',14};
+  i = 0xFFFFFF00;
+  c = 'A';
+  return c; // break here
+}