Revive inline_function()

test/inlining.py

@@ -0,0 +1,32 @@
+from llvm.core import *
+import unittest
+
+class TestInlining(unittest.TestCase):
+    def test_inline_call(self):
+        mod = Module.new(__name__)
+        callee = mod.add_function(Type.function(Type.int(), [Type.int()]),
+                                  name='bar')
+
+        builder = Builder.new(callee.append_basic_block('entry'))
+        builder.ret(builder.add(callee.args[0], callee.args[0]))
+
+        caller = mod.add_function(Type.function(Type.int(), []),
+                                  name='foo')
+
+        builder = Builder.new(caller.append_basic_block('entry'))
+        callinst = builder.call(callee, [Constant.int(Type.int(), 1234)])
+        builder.ret(callinst)
+
+        pre_inlining = str(caller)
+        self.assertIn('call', pre_inlining)
+
+        self.assertTrue(inline_function(callinst))
+
+        post_inlining = str(caller)
+        self.assertNotIn('call', post_inlining)
+        self.assertIn('2468', post_inlining)
+
+
+if __name__ == '__main__':
+    unittest.main()
+