forked from M-Labs/artiq
py2llvm: add floating point support
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b923690d6f
commit
f061b15994
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@ -79,6 +79,8 @@ class Visitor:
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r = base_types.VInt()
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else:
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r = base_types.VInt(64)
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elif isinstance(n, float):
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r = base_types.VFloat()
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else:
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raise NotImplementedError
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if self.builder is not None:
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@ -110,7 +112,7 @@ class Visitor:
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def _visit_expr_Call(self, node):
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fn = node.func.id
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if fn in {"bool", "int", "int64", "round", "round64"}:
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if fn in {"bool", "int", "int64", "round", "round64", "float"}:
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value = self.visit_expression(node.args[0])
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return getattr(value, "o_"+fn)(self.builder)
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elif fn == "Fraction":
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@ -62,6 +62,13 @@ class VInt(VGeneric):
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lc.Constant.int(self.get_llvm_type(), 0)))
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return r
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def o_float(self, builder):
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r = VFloat()
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if builder is not None:
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r.auto_store(builder, builder.sitofp(self.auto_load(builder),
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r.get_llvm_type()))
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return r
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def o_not(self, builder):
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return self.o_bool(builder, True)
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@ -91,6 +98,14 @@ class VInt(VGeneric):
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return r
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o_roundx = o_intx
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def o_truediv(self, other, builder):
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if isinstance(other, VInt):
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left = self.o_float(builder)
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right = other.o_float(builder)
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return left.o_truediv(right, builder)
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else:
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return NotImplemented
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def _make_vint_binop_method(builder_name):
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def binop_method(self, other, builder):
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@ -163,3 +178,73 @@ class VBool(VInt):
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if builder is not None:
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r.auto_store(builder, self.auto_load(builder))
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return r
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class VFloat(VGeneric):
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def get_llvm_type(self):
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return lc.Type.double()
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def set_value(self, builder, v):
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if not isinstance(v, VFloat):
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raise TypeError
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self.auto_store(builder, v.auto_load(builder))
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def set_const_value(self, builder, n):
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self.auto_store(builder, lc.Constant.real(self.get_llvm_type(), n))
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def o_float(self, builder):
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r = VFloat()
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if builder is not None:
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r.auto_store(builder, self.auto_load(builder))
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return r
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def _make_vfloat_binop_method(builder_name, reverse):
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def binop_method(self, other, builder):
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if not hasattr(other, "o_float"):
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return NotImplemented
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r = VFloat()
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if builder is not None:
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left = self.o_float(builder)
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right = other.o_float(builder)
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if reverse:
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left, right = right, left
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bf = getattr(builder, builder_name)
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r.auto_store(
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builder, bf(left.auto_load(builder),
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right.auto_load(builder)))
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return r
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return binop_method
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for _method_name, _builder_name in (("add", "fadd"),
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("sub", "fsub"),
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("mul", "fmul"),
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("truediv", "fdiv")):
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setattr(VFloat, "o_" + _method_name,
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_make_vfloat_binop_method(_builder_name, False))
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setattr(VFloat, "or_" + _method_name,
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_make_vfloat_binop_method(_builder_name, True))
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def _make_vfloat_cmp_method(fcmp_val):
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def cmp_method(self, other, builder):
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if not hasattr(other, "o_float"):
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return NotImplemented
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r = VBool()
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if builder is not None:
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left = self.o_float(builder)
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right = other.o_float(builder)
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r.auto_store(
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builder,
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builder.fcmp(
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fcmp_val, left.auto_load(builder),
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right.auto_load(builder)))
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return r
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return cmp_method
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for _method_name, _fcmp_val in (("o_eq", lc.FCMP_OEQ),
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("o_ne", lc.FCMP_ONE),
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("o_lt", lc.FCMP_OLT),
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("o_le", lc.FCMP_OLE),
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("o_gt", lc.FCMP_OGT),
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("o_ge", lc.FCMP_OGE)):
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setattr(VFloat, _method_name, _make_vfloat_cmp_method(_fcmp_val))
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107
test/py2llvm.py
107
test/py2llvm.py
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@ -20,11 +20,15 @@ def test_base_types(choice):
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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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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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else:
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elif myf:
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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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@ -44,6 +48,8 @@ class FunctionBaseTypesCase(unittest.TestCase):
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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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@ -85,18 +91,37 @@ class CompiledFunction:
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self.ee = module.get_ee()
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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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args_llvm = []
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for av, a in zip(self.argval, args):
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if isinstance(av, base_types.VInt):
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al = le.GenericValue.int(av.get_llvm_type(), a)
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elif isinstance(av, base_types.VFloat):
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al = le.GenericValue.real(av.get_llvm_type(), a)
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else:
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raise NotImplementedError
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args_llvm.append(al)
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result = self.ee.run_function(self.function, args_llvm)
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if isinstance(self.retval, base_types.VBool):
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return bool(result.as_int())
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elif isinstance(self.retval, base_types.VInt):
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return result.as_int_signed()
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elif isinstance(self.retval, base_types.VFloat):
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return result.as_real(self.retval.get_llvm_type())
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else:
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raise NotImplementedError
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def arith(op, a, b):
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if 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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elif op == 3:
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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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@ -111,7 +136,7 @@ def simplify_encode(a, b):
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return f.numerator*1000 + f.denominator
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def arith_encode(op, a, b, c, d):
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def frac_arith_encode(op, a, b, c, d):
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if op == 1:
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f = Fraction(a, b) - Fraction(c, d)
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elif op == 2:
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@ -123,7 +148,7 @@ def arith_encode(op, a, b, c, d):
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return f.numerator*1000 + f.denominator
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def arith_encode_int(op, a, b, x):
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def frac_arith_encode_int(op, a, b, x):
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if op == 1:
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f = Fraction(a, b) - x
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elif op == 2:
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@ -135,7 +160,7 @@ def arith_encode_int(op, a, b, x):
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return f.numerator*1000 + f.denominator
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def arith_encode_int_rev(op, a, b, x):
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def frac_arith_encode_int_rev(op, a, b, x):
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if op == 1:
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f = x - Fraction(a, b)
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elif op == 2:
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@ -160,13 +185,33 @@ def array_test():
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return acc
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def _frac_test_range():
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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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@ -175,24 +220,24 @@ class CodeGenCase(unittest.TestCase):
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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 _frac_test_range():
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for b in _frac_test_range():
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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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arith_encode_c = CompiledFunction(
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arith_encode, {
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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 _frac_test_range():
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for b in _frac_test_range():
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for c in _frac_test_range():
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for d in _frac_test_range():
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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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arith_encode_c(op, a, b, c, d),
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arith_encode(op, a, b, c, d))
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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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@ -206,34 +251,34 @@ class CodeGenCase(unittest.TestCase):
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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 = arith_encode_int_rev if rev else arith_encode_int
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def _test_frac_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 _frac_test_range():
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for b in _frac_test_range():
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for x in _frac_test_range():
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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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self._test_frac_frac_arith_int(0, False)
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self._test_frac_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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self._test_frac_frac_arith_int(1, False)
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self._test_frac_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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self._test_frac_frac_arith_int(2, False)
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self._test_frac_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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self._test_frac_frac_arith_int(3, False)
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self._test_frac_frac_arith_int(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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