import unittest import ast import inspect from fractions import Fraction from llvm import ee as le from artiq.language.core import int64, array from artiq.py2llvm.infer_types import infer_function_types from artiq.py2llvm import base_types, arrays from artiq.py2llvm.module import Module def test_base_types(choice): a = 2 # promoted later to int64 b = a + 1 # initially int32, becomes int64 after a is promoted c = b//2 # initially int32, becomes int64 after b is promoted d = 4 # stays int32 x = int64(7) a += x # promotes a to int64 foo = True bar = None if choice and foo and not bar: return d else: return x + c def _build_function_types(f): return infer_function_types( None, ast.parse(inspect.getsource(f)), dict()) class FunctionBaseTypesCase(unittest.TestCase): def setUp(self): self.ns = _build_function_types(test_base_types) def test_simple_types(self): self.assertIsInstance(self.ns["foo"], base_types.VBool) self.assertIsInstance(self.ns["bar"], base_types.VNone) self.assertIsInstance(self.ns["d"], base_types.VInt) self.assertEqual(self.ns["d"].nbits, 32) self.assertIsInstance(self.ns["x"], base_types.VInt) self.assertEqual(self.ns["x"].nbits, 64) def test_promotion(self): for v in "abc": self.assertIsInstance(self.ns[v], base_types.VInt) self.assertEqual(self.ns[v].nbits, 64) def test_return(self): self.assertIsInstance(self.ns["return"], base_types.VInt) self.assertEqual(self.ns["return"].nbits, 64) def test_array_types(): a = array(0, 5) for i in range(2): a[i] = int64(8) return a class FunctionArrayTypesCase(unittest.TestCase): def setUp(self): self.ns = _build_function_types(test_array_types) def test_array_types(self): self.assertIsInstance(self.ns["a"], arrays.VArray) self.assertIsInstance(self.ns["a"].el_init, base_types.VInt) self.assertEqual(self.ns["a"].el_init.nbits, 64) self.assertEqual(self.ns["a"].count, 5) self.assertIsInstance(self.ns["i"], base_types.VInt) self.assertEqual(self.ns["i"].nbits, 32) class CompiledFunction: def __init__(self, function, param_types): module = Module() func_def = ast.parse(inspect.getsource(function)).body[0] self.function, self.retval = module.compile_function( func_def, param_types) self.argval = [param_types[arg.arg] for arg in func_def.args.args] self.ee = module.get_ee() def __call__(self, *args): args_llvm = [ le.GenericValue.int(av.get_llvm_type(), a) for av, a in zip(self.argval, args)] result = self.ee.run_function(self.function, args_llvm) if isinstance(self.retval, base_types.VBool): return bool(result.as_int()) elif isinstance(self.retval, base_types.VInt): return result.as_int_signed() else: raise NotImplementedError def is_prime(x): d = 2 while d*d <= x: if not x % d: return False d += 1 return True def simplify_encode(a, b): f = Fraction(a, b) return f.numerator*1000 + f.denominator def arith_encode(op, a, b, c, d): if op == 1: f = Fraction(a, b) - Fraction(c, d) elif op == 2: f = Fraction(a, b) + Fraction(c, d) elif op == 3: f = Fraction(a, b) * Fraction(c, d) else: f = Fraction(a, b) / Fraction(c, d) return f.numerator*1000 + f.denominator def array_test(): a = array(array(2, 5), 5) a[3][2] = 11 a[4][1] = 42 a[0][0] += 6 acc = 0 for i in range(5): for j in range(5): acc += a[i][j] return acc class CodeGenCase(unittest.TestCase): def test_is_prime(self): is_prime_c = CompiledFunction(is_prime, {"x": base_types.VInt()}) for i in range(200): self.assertEqual(is_prime_c(i), is_prime(i)) def test_frac_simplify(self): simplify_encode_c = CompiledFunction( simplify_encode, {"a": base_types.VInt(), "b": base_types.VInt()}) for a in range(5, 20): for b in range(5, 20): self.assertEqual( simplify_encode_c(a, b), simplify_encode(a, b)) def _test_frac_arith(self, op): arith_encode_c = CompiledFunction( arith_encode, { "op": base_types.VInt(), "a": base_types.VInt(), "b": base_types.VInt(), "c": base_types.VInt(), "d": base_types.VInt()}) for a in range(5, 10): for b in range(5, 10): for c in range(5, 10): for d in range(5, 10): self.assertEqual( arith_encode_c(op, a, b, c, d), arith_encode(op, a, b, c, d)) def test_frac_add(self): self._test_frac_arith(0) def test_frac_sub(self): self._test_frac_arith(1) def test_frac_mul(self): self._test_frac_arith(2) def test_frac_div(self): self._test_frac_arith(3) def test_array(self): array_test_c = CompiledFunction(array_test, dict()) self.assertEqual(array_test_c(), array_test())