Added EngineBuilder.

Added test/enginebuilder.

test/enginebuilder.py

@@ -0,0 +1,56 @@
+from llvm.ee import *
+from llvm.core import *
+from llvm import _util, LLVMException
+
+from ctypes import *
+
+import unittest, logging
+
+class TestEngineBuilder(unittest.TestCase):
+
+    def make_test_module(self):
+        module = Module.new("testmodule")
+        fnty = Type.function(Type.int(), [])
+        function = module.add_function(fnty, 'foo')
+        bb_entry = function.append_basic_block('entry')
+        builder = Builder.new(bb_entry)
+        builder.ret(Constant.int(Type.int(), 0xcafe))
+        module.verify()
+        return module
+
+    def run_foo(self, ee, module):
+        function = module.get_function_named('foo')
+        retval = ee.run_function(function, [])
+        self.assertEqual(retval.as_int(), 0xcafe)
+
+
+    def test_enginebuilder_basic(self):
+        module = self.make_test_module()
+        ee = EngineBuilder.new(module).create()
+
+        with self.assertRaises(LLVMException):
+            # Ensure the module is owned.
+            _util.check_is_unowned(module)
+
+        self.run_foo(ee, module)
+
+    def test_enginebuilder_force_jit(self):
+        module = self.make_test_module()
+        ee = EngineBuilder.new(module).force_jit().create()
+
+        self.run_foo(ee, module)
+
+    def test_enginebuilder_force_interpreter(self):
+        module = self.make_test_module()
+        ee = EngineBuilder.new(module).force_interpreter().create()
+
+        self.run_foo(ee, module)
+
+    def test_enginebuilder_opt(self):
+        module = self.make_test_module()
+        ee = EngineBuilder.new(module).opt(3).create()
+
+        self.run_foo(ee, module)
+
+if __name__ == '__main__':
+    unittest.main()