diff --git a/llvm/test_llvmpy.py b/llvm/test_llvmpy.py index f0e5143..d3ef55a 100644 --- a/llvm/test_llvmpy.py +++ b/llvm/test_llvmpy.py @@ -339,6 +339,43 @@ tests.append(TestNative) # --------------------------------------------------------------------------- +class TestUses(unittest.TestCase): + + def test_uses(self): + m = Module.new('a') + t = Type.int() + ft = Type.function(t, [t, t, t]) + f = m.add_function(ft, "func") + b = f.append_basic_block('entry') + bld = Builder.new(b) + tmp1 = bld.add(Constant.int(t, 100), f.args[0], "tmp1") + tmp2 = bld.add(tmp1, f.args[1], "tmp2") + tmp3 = bld.add(tmp1, f.args[2], "tmp3") + bld.ret(tmp3) + + # Testing use count + self.assertEqual(f.args[0].use_count, 1) + self.assertEqual(f.args[1].use_count, 1) + self.assertEqual(f.args[2].use_count, 1) + self.assertEqual(tmp1.use_count, 2) + self.assertEqual(tmp2.use_count, 0) + self.assertEqual(tmp3.use_count, 1) + + # Testing uses + self.assert_(f.args[0].uses[0] is tmp1) + self.assertEqual(len(f.args[0].uses), 1) + self.assert_(f.args[1].uses[0] is tmp2) + self.assertEqual(len(f.args[1].uses), 1) + self.assert_(f.args[2].uses[0] is tmp3) + self.assertEqual(len(f.args[2].uses), 1) + self.assertEqual(len(tmp1.uses), 2) + self.assertEqual(len(tmp2.uses), 0) + self.assertEqual(len(tmp3.uses), 1) + +tests.append(TestUses) + +# --------------------------------------------------------------------------- + def run(verbosity=1): print('llvmpy is installed in: ' + os.path.dirname(__file__)) print('llvmpy version: ' + __version__)