mirror of https://github.com/m-labs/artiq.git
370 lines
10 KiB
Python
370 lines
10 KiB
Python
import unittest
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import ast
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import inspect
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from fractions import Fraction
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from ctypes import CFUNCTYPE, c_int, c_int32, c_int64, c_double
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import llvmlite.binding as llvm
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from artiq.language.core import int64, array
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from artiq.py2llvm.infer_types import infer_function_types
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from artiq.py2llvm import base_types, arrays
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from artiq.py2llvm.module import Module
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llvm.initialize()
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llvm.initialize_native_target()
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llvm.initialize_native_asmprinter()
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def _base_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 and 5 # 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 | True or False
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bar = None
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myf = 4.5
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myf2 = myf + x
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if choice and foo and not bar:
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return d
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elif myf2:
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return x + c
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else:
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return int64(8)
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def _build_function_types(f):
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return infer_function_types(
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None, ast.parse(inspect.getsource(f)),
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dict())
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class FunctionBaseTypesCase(unittest.TestCase):
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def setUp(self):
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self.ns = _build_function_types(_base_types)
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def test_simple_types(self):
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self.assertIsInstance(self.ns["foo"], base_types.VBool)
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self.assertIsInstance(self.ns["bar"], base_types.VNone)
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self.assertIsInstance(self.ns["d"], base_types.VInt)
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self.assertEqual(self.ns["d"].nbits, 32)
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self.assertIsInstance(self.ns["x"], base_types.VInt)
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self.assertEqual(self.ns["x"].nbits, 64)
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self.assertIsInstance(self.ns["myf"], base_types.VFloat)
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self.assertIsInstance(self.ns["myf2"], base_types.VFloat)
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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], base_types.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"], base_types.VInt)
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self.assertEqual(self.ns["return"].nbits, 64)
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def test_array_types():
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a = array(0, 5)
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for i in range(2):
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a[i] = int64(8)
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return a
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class FunctionArrayTypesCase(unittest.TestCase):
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def setUp(self):
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self.ns = _build_function_types(test_array_types)
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def test_array_types(self):
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self.assertIsInstance(self.ns["a"], arrays.VArray)
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self.assertIsInstance(self.ns["a"].el_init, base_types.VInt)
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self.assertEqual(self.ns["a"].el_init.nbits, 64)
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self.assertEqual(self.ns["a"].count, 5)
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self.assertIsInstance(self.ns["i"], base_types.VInt)
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self.assertEqual(self.ns["i"].nbits, 32)
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def _value_to_ctype(v):
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if isinstance(v, base_types.VBool):
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return c_int
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elif isinstance(v, base_types.VInt):
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if v.nbits == 32:
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return c_int32
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elif v.nbits == 64:
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return c_int64
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else:
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raise NotImplementedError(str(v))
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elif isinstance(v, base_types.VFloat):
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return c_double
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else:
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raise NotImplementedError(str(v))
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class CompiledFunction:
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def __init__(self, function, param_types):
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module = Module()
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func_def = ast.parse(inspect.getsource(function)).body[0]
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function, retval = module.compile_function(func_def, param_types)
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argvals = [param_types[arg.arg] for arg in func_def.args.args]
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ee = module.get_ee()
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cfptr = ee.get_pointer_to_global(
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module.llvm_module.get_function(function.name))
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retval_ctype = _value_to_ctype(retval)
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argval_ctypes = [_value_to_ctype(argval) for argval in argvals]
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self.cfunc = CFUNCTYPE(retval_ctype, *argval_ctypes)(cfptr)
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# HACK: prevent garbage collection of self.cfunc internals
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self.ee = ee
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def __call__(self, *args):
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return self.cfunc(*args)
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def arith(op, a, b):
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if op == 0:
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return a + b
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elif op == 1:
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return a - b
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elif op == 2:
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return a * b
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else:
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return a / b
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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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def simplify_encode(a, b):
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f = Fraction(a, b)
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return f.numerator*1000 + f.denominator
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def frac_arith_encode(op, a, b, c, d):
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if op == 0:
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f = Fraction(a, b) - Fraction(c, d)
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elif op == 1:
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f = Fraction(a, b) + Fraction(c, d)
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elif op == 2:
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f = Fraction(a, b) * Fraction(c, d)
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else:
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f = Fraction(a, b) / Fraction(c, d)
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return f.numerator*1000 + f.denominator
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def frac_arith_encode_int(op, a, b, x):
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if op == 0:
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f = Fraction(a, b) - x
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elif op == 1:
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f = Fraction(a, b) + x
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elif op == 2:
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f = Fraction(a, b) * x
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else:
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f = Fraction(a, b) / x
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return f.numerator*1000 + f.denominator
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def frac_arith_encode_int_rev(op, a, b, x):
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if op == 0:
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f = x - Fraction(a, b)
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elif op == 1:
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f = x + Fraction(a, b)
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elif op == 2:
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f = x * Fraction(a, b)
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else:
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f = x / Fraction(a, b)
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return f.numerator*1000 + f.denominator
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def frac_arith_float(op, a, b, x):
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if op == 0:
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return Fraction(a, b) - x
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elif op == 1:
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return Fraction(a, b) + x
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elif op == 2:
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return Fraction(a, b) * x
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else:
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return Fraction(a, b) / x
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def frac_arith_float_rev(op, a, b, x):
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if op == 0:
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return x - Fraction(a, b)
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elif op == 1:
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return x + Fraction(a, b)
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elif op == 2:
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return x * Fraction(a, b)
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else:
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return x / Fraction(a, b)
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def array_test():
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a = array(array(2, 5), 5)
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a[3][2] = 11
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a[4][1] = 42
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a[0][0] += 6
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acc = 0
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for i in range(5):
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for j in range(5):
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if i + j == 2 or i + j == 1:
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continue
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if i and j and a[i][j]:
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acc += 1
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acc += a[i][j]
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return acc
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def corner_cases():
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two = True + True - (not True)
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three = two + True//True - False*True
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two_float = three - True/True
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one_float = two_float - (1.0 == bool(0.1))
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zero = int(one_float) + round(-0.6)
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eleven_float = zero + 5.5//0.5
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ten_float = eleven_float + round(Fraction(2, -3))
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return ten_float
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def _test_range():
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for i in range(5, 10):
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yield i
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yield -i
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class CodeGenCase(unittest.TestCase):
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def _test_float_arith(self, op):
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arith_c = CompiledFunction(arith, {
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"op": base_types.VInt(),
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"a": base_types.VFloat(), "b": base_types.VFloat()})
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for a in _test_range():
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for b in _test_range():
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self.assertEqual(arith_c(op, a/2, b/2), arith(op, a/2, b/2))
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def test_float_add(self):
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self._test_float_arith(0)
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def test_float_sub(self):
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self._test_float_arith(1)
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def test_float_mul(self):
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self._test_float_arith(2)
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def test_float_div(self):
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self._test_float_arith(3)
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def test_is_prime(self):
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is_prime_c = CompiledFunction(is_prime, {"x": base_types.VInt()})
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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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def test_frac_simplify(self):
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simplify_encode_c = CompiledFunction(
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simplify_encode, {"a": base_types.VInt(), "b": base_types.VInt()})
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for a in _test_range():
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for b in _test_range():
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self.assertEqual(
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simplify_encode_c(a, b), simplify_encode(a, b))
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def _test_frac_arith(self, op):
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frac_arith_encode_c = CompiledFunction(
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frac_arith_encode, {
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"op": base_types.VInt(),
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"a": base_types.VInt(), "b": base_types.VInt(),
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"c": base_types.VInt(), "d": base_types.VInt()})
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for a in _test_range():
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for b in _test_range():
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for c in _test_range():
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for d in _test_range():
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self.assertEqual(
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frac_arith_encode_c(op, a, b, c, d),
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frac_arith_encode(op, a, b, c, d))
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def test_frac_add(self):
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self._test_frac_arith(0)
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def test_frac_sub(self):
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self._test_frac_arith(1)
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def test_frac_mul(self):
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self._test_frac_arith(2)
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def test_frac_div(self):
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self._test_frac_arith(3)
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def _test_frac_arith_int(self, op, rev):
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f = frac_arith_encode_int_rev if rev else frac_arith_encode_int
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f_c = CompiledFunction(f, {
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"op": base_types.VInt(),
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"a": base_types.VInt(), "b": base_types.VInt(),
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"x": base_types.VInt()})
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for a in _test_range():
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for b in _test_range():
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for x in _test_range():
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self.assertEqual(
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f_c(op, a, b, x),
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f(op, a, b, x))
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def test_frac_add_int(self):
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self._test_frac_arith_int(0, False)
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self._test_frac_arith_int(0, True)
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def test_frac_sub_int(self):
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self._test_frac_arith_int(1, False)
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self._test_frac_arith_int(1, True)
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def test_frac_mul_int(self):
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self._test_frac_arith_int(2, False)
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self._test_frac_arith_int(2, True)
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def test_frac_div_int(self):
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self._test_frac_arith_int(3, False)
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self._test_frac_arith_int(3, True)
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def _test_frac_arith_float(self, op, rev):
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f = frac_arith_float_rev if rev else frac_arith_float
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f_c = CompiledFunction(f, {
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"op": base_types.VInt(),
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"a": base_types.VInt(), "b": base_types.VInt(),
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"x": base_types.VFloat()})
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for a in _test_range():
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for b in _test_range():
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for x in _test_range():
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self.assertAlmostEqual(
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f_c(op, a, b, x/2),
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f(op, a, b, x/2))
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def test_frac_add_float(self):
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self._test_frac_arith_float(0, False)
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self._test_frac_arith_float(0, True)
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def test_frac_sub_float(self):
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self._test_frac_arith_float(1, False)
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self._test_frac_arith_float(1, True)
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def test_frac_mul_float(self):
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self._test_frac_arith_float(2, False)
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self._test_frac_arith_float(2, True)
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def test_frac_div_float(self):
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self._test_frac_arith_float(3, False)
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self._test_frac_arith_float(3, True)
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def test_array(self):
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array_test_c = CompiledFunction(array_test, dict())
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self.assertEqual(array_test_c(), array_test())
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def test_corner_cases(self):
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corner_cases_c = CompiledFunction(corner_cases, dict())
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self.assertEqual(corner_cases_c(), corner_cases())
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