Adds a test to detect when clang omits specialized generic types from debug information when using precompiled headers and -gmodules.

llvm-svn: 266791

1 files changed, 56 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/lang/cpp/gmodules/TestWithModuleDebugging.py b/lldb/packages/Python/lldbsuite/test/lang/cpp/gmodules/TestWithModuleDebugging.py
new file mode 100644
index 00000000000..bbb3305feb3
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/lang/cpp/gmodules/TestWithModuleDebugging.py
@@ -0,0 +1,56 @@
+import lldb, os
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+class TestWithGmodulesDebugInfo(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @expectedFailureAll(bugnumber="llvm.org/pr27412")
+    @skipUnlessClangModules()
+    def test_specialized_typedef_from_pch(self):
+        clang_help = os.popen("clang --help").read()
+        match = re.match(".* -gmodules ", clang_help, re.DOTALL)
+        if not match:
+            self.skipTest("Clang version doesn't support -gmodules flag")
+            return
+
+        self.build()
+        cwd = os.getcwd()
+
+        src_file = os.path.join(cwd, "main.cpp")
+        src_file_spec = lldb.SBFileSpec(src_file)
+        self.assertTrue(src_file_spec.IsValid(), "breakpoint file")
+
+        # Get the path of the executable
+        exe_path  = os.path.join(cwd, 'a.out')
+
+        # Load the executable
+        target = self.dbg.CreateTarget(exe_path)
+        self.assertTrue(target.IsValid(), VALID_TARGET)
+
+        # Break on interesting line
+        breakpoint = target.BreakpointCreateBySourceRegex("break here", src_file_spec)
+        self.assertTrue(breakpoint.IsValid() and breakpoint.GetNumLocations() >= 1, VALID_BREAKPOINT)
+
+        # Launch the process
+        process = target.LaunchSimple(None, None, self.get_process_working_directory())
+        self.assertTrue(process.IsValid(), PROCESS_IS_VALID)
+
+        # Get the thread of the process
+        self.assertTrue(process.GetState() == lldb.eStateStopped)
+        thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
+        self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition")
+
+        # Get frame for current thread
+        frame = thread.frames[0]
+
+        testValue = frame.EvaluateExpression("test")
+        self.assertTrue(testValue.GetError().Success(), "Test expression value invalid: %s" % (testValue.GetError().GetCString()))
+        self.assertTrue(testValue.GetTypeName() == "IntContainer", "Test expression type incorrect")
+
+        memberValue = testValue.GetChildMemberWithName("storage")
+        self.assertTrue(memberValue.GetError().Success(), "Member value missing or invalid: %s" % (testValue.GetError().GetCString()))
+        self.assertTrue(memberValue.GetTypeName() == "int", "Member type incorrect")
+        self.assertEqual(42, memberValue.GetValueAsSigned(), "Member value incorrect")