mirror of https://github.com/m-labs/artiq.git
95 lines
2.9 KiB
Python
95 lines
2.9 KiB
Python
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import unittest
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import ast
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import inspect
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from llvm import core as lc
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from llvm import passes as lp
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from llvm import ee as le
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from artiq.py2llvm.infer_types import infer_function_types
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from artiq.py2llvm import values
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from artiq.py2llvm import compile_function
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from artiq.py2llvm.tools import add_common_passes
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def test_types(choice):
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a = 2 # promoted later to int64
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b = a + 1 # initially int32, becomes int64 after a is promoted
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c = b//2 # initially int32, becomes int64 after b is promoted
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d = 4 # stays int32
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x = int64(7)
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a += x # promotes a to int64
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foo = True
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bar = None
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if choice:
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return 3
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else:
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return x
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class FunctionTypesCase(unittest.TestCase):
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def setUp(self):
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self.ns = infer_function_types(
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None, ast.parse(inspect.getsource(test_types)),
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dict())
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def test_base_types(self):
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self.assertIsInstance(self.ns["foo"], values.VBool)
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self.assertIsInstance(self.ns["bar"], values.VNone)
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self.assertIsInstance(self.ns["d"], values.VInt)
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self.assertEqual(self.ns["d"].nbits, 32)
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self.assertIsInstance(self.ns["x"], values.VInt)
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self.assertEqual(self.ns["x"].nbits, 64)
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def test_promotion(self):
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for v in "abc":
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self.assertIsInstance(self.ns[v], values.VInt)
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self.assertEqual(self.ns[v].nbits, 64)
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def test_return(self):
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self.assertIsInstance(self.ns["return"], values.VInt)
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self.assertEqual(self.ns["return"].nbits, 64)
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class CompiledFunction:
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def __init__(self, function, param_types):
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module = lc.Module.new("main")
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values.init_module(module)
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funcdef = ast.parse(inspect.getsource(function)).body[0]
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self.function, self.retval = compile_function(
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module, None, funcdef, param_types)
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self.argval = [param_types[arg.arg] for arg in funcdef.args.args]
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self.executor = le.ExecutionEngine.new(module)
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pass_manager = lp.PassManager.new()
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add_common_passes(pass_manager)
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pass_manager.run(module)
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def __call__(self, *args):
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args_llvm = [
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le.GenericValue.int(av.get_llvm_type(), a)
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for av, a in zip(self.argval, args)]
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result = self.executor.run_function(self.function, args_llvm)
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if isinstance(self.retval, values.VBool):
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return bool(result.as_int())
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elif isinstance(self.retval, values.VInt):
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return result.as_int_signed()
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else:
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raise NotImplementedError
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def is_prime(x):
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d = 2
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while d*d <= x:
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if not x % d:
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return False
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d += 1
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return True
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class CodeGenCase(unittest.TestCase):
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def test_is_prime(self):
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is_prime_c = CompiledFunction(is_prime, {"x": values.VInt(32)})
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for i in range(200):
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self.assertEqual(is_prime_c(i), is_prime(i))
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