Resubmit [analyzer] Support for naive cross translation unit analysis

Originally submitted as r326323 and r326324.
Reverted in r326432.

Reverting the commit was a mistake.
The breakage was due to invalid build files in our internal buildsystem,
CMakeLists did not have any cyclic dependencies.

llvm-svn: 326439

1 files changed, 12 insertions, 0 deletions

diff --git a/clang/tools/scan-build-py/tests/unit/test_clang.py b/clang/tools/scan-build-py/tests/unit/test_clang.py
index eef8c26bbd1..07ac4d9fb80 100644
--- a/clang/tools/scan-build-py/tests/unit/test_clang.py
+++ b/clang/tools/scan-build-py/tests/unit/test_clang.py
@@ -92,3 +92,15 @@ class ClangGetCheckersTest(unittest.TestCase):
         self.assertEqual('Checker One description', result.get('checker.one'))
         self.assertTrue('checker.two' in result)
         self.assertEqual('Checker Two description', result.get('checker.two'))
+
+
+class ClangIsCtuCapableTest(unittest.TestCase):
+    def test_ctu_not_found(self):
+        is_ctu = sut.is_ctu_capable('not-found-clang-func-mapping')
+        self.assertFalse(is_ctu)
+
+
+class ClangGetTripleArchTest(unittest.TestCase):
+    def test_arch_is_not_empty(self):
+        arch = sut.get_triple_arch(['clang', '-E', '-'], '.')
+        self.assertTrue(len(arch) > 0)