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import py
import sys, random
from rpython.rlib.rarithmetic import r_uint, intmask
from rpython.jit.metainterp.executor import execute, wrap_constant
from rpython.jit.metainterp.executor import execute_varargs, _execute_arglist
from rpython.jit.metainterp.resoperation import rop, opname, opclasses,\
InputArgInt, InputArgFloat, InputArgRef
from rpython.jit.metainterp.history import ConstInt, ConstPtr, ConstFloat
from rpython.jit.metainterp.history import AbstractDescr
from rpython.jit.metainterp import history
from rpython.jit.codewriter import longlong
from rpython.jit.backend.model import AbstractCPU
from rpython.rtyper.lltypesystem import llmemory, rffi
class FakeDescr(AbstractDescr):
pass
class FakeCallDescr(FakeDescr):
def get_result_type(self):
return history.FLOAT
class FakeFieldDescr(FakeDescr):
def is_pointer_field(self):
return False
def is_float_field(self):
return True
class FakeArrayDescr(FakeDescr):
def is_array_of_pointers(self):
return False
def is_array_of_floats(self):
return True
class FakeResultR:
_TYPE = llmemory.GCREF
def __init__(self, *args):
self.fakeargs = args
class FakeMetaInterp:
pass
class FakeCPU(AbstractCPU):
supports_floats = True
def bh_new(self, descr):
return FakeResultR('new', descr)
def bh_arraylen_gc(self, array, descr):
assert not array
assert isinstance(descr, FakeDescr)
return 55
def bh_setfield_gc_f(self, struct, newvalue, fielddescr):
self.fakesetfield = (struct, newvalue, fielddescr)
def bh_setarrayitem_gc_f(self, array, index, newvalue, arraydescr):
self.fakesetarrayitem = (array, index, newvalue, arraydescr)
def bh_call_f(self, func, args_i, args_r, args_f, calldescr):
self.fakecalled = (func, args_i, args_r, args_f, calldescr)
return longlong.getfloatstorage(42.5)
def bh_strsetitem(self, string, index, newvalue):
self.fakestrsetitem = (string, index, newvalue)
boxfloat = InputArgFloat.fromfloat
constfloat = ConstFloat.fromfloat
def test_execute():
cpu = FakeCPU()
descr = FakeDescr()
box = execute(cpu, None, rop.INT_ADD, None, InputArgInt(40), ConstInt(2))
assert box == 42
box = execute(cpu, None, rop.NEW, descr)
assert box.fakeargs == ('new', descr)
def test_execute_varargs():
cpu = FakeCPU()
descr = FakeCallDescr()
argboxes = [InputArgInt(99999), InputArgInt(321), constfloat(2.25), ConstInt(123),
InputArgRef(), boxfloat(5.5)]
box = execute_varargs(cpu, FakeMetaInterp(), rop.CALL_F, argboxes, descr)
assert longlong.getrealfloat(box) == 42.5
assert cpu.fakecalled == (99999, [321, 123],
[ConstPtr.value],
[longlong.getfloatstorage(2.25),
longlong.getfloatstorage(5.5)],
descr)
def test_execute_nonspec():
cpu = FakeCPU()
descr = FakeDescr()
# cases with a descr
# arity == -1
argboxes = [InputArgInt(321), ConstInt(123)]
box = _execute_arglist(cpu, FakeMetaInterp(), rop.CALL_F,
argboxes, FakeCallDescr())
assert longlong.getrealfloat(box) == 42.5
# arity == 0
box = _execute_arglist(cpu, None, rop.NEW, [], descr)
assert box.fakeargs == ('new', descr)
# arity == 1
box1 = InputArgRef()
box = _execute_arglist(cpu, None, rop.ARRAYLEN_GC, [box1], descr)
assert box == 55
# arity == 2
box2 = boxfloat(222.2)
fielddescr = FakeFieldDescr()
_execute_arglist(cpu, None, rop.SETFIELD_GC, [box1, box2], fielddescr)
assert cpu.fakesetfield == (box1.getref_base(), box2.getfloatstorage(),
fielddescr)
# arity == 3
box3 = InputArgInt(33)
arraydescr = FakeArrayDescr()
_execute_arglist(cpu, None, rop.SETARRAYITEM_GC, [box1, box3, box2],
arraydescr)
assert cpu.fakesetarrayitem == (box1.getref_base(), box3.getint(),
box2.getfloatstorage(), arraydescr)
# cases without descr
# arity == 1
box = _execute_arglist(cpu, None, rop.INT_INVERT, [box3])
assert box == ~33
# arity == 2
box = _execute_arglist(cpu, None, rop.INT_LSHIFT, [box3, InputArgInt(3)])
assert box == 33 << 3
# arity == 3
_execute_arglist(cpu, None, rop.STRSETITEM, [box1, InputArgInt(3), box3])
assert cpu.fakestrsetitem == (box1.getref_base(), 3, box3.getint())
# ints
def _int_binary_operations():
minint = -sys.maxint-1
# Test cases. Note that for each operation there should be at least
# one case in which the two input arguments are equal.
for opnum, testcases in [
(rop.INT_ADD, [(10, -2, 8),
(-60, -60, -120)]),
(rop.INT_SUB, [(10, -2, 12),
(133, 133, 0)]),
(rop.INT_MUL, [(-6, -3, 18),
(15, 15, 225)]),
(rop.INT_AND, [(0xFF00, 0x0FF0, 0x0F00),
(-111, -111, -111)]),
(rop.INT_OR, [(0xFF00, 0x0FF0, 0xFFF0),
(-111, -111, -111)]),
(rop.INT_XOR, [(0xFF00, 0x0FF0, 0xF0F0),
(-111, -111, 0)]),
(rop.INT_LSHIFT, [(10, 4, 10<<4),
(-5, 2, -20),
(-5, 0, -5),
(3, 3, 24)]),
(rop.INT_RSHIFT, [(-17, 2, -5),
(19, 1, 9),
(3, 3, 0)]),
(rop.UINT_RSHIFT, [(-1, 4, intmask(r_uint(-1) >> r_uint(4))),
( 1, 4, intmask(r_uint(1) >> r_uint(4))),
( 3, 3, 0)]),
(rop.UINT_MUL_HIGH, [(5, 6, 0),
(0xffff, 0xffff, 0),
(-1, -1, -2),
(-1, 123, 122)]),
]:
for x, y, z in testcases:
yield opnum, [x, y], z
def _int_comparison_operations():
cpu = FakeCPU()
random_numbers = [-sys.maxint-1, -1, 0, 1, sys.maxint]
def pick():
r = random.randrange(-99999, 100000)
if r & 1:
return r
else:
return random_numbers[r % len(random_numbers)]
minint = -sys.maxint-1
for opnum, operation in [
(rop.INT_LT, lambda x, y: x < y),
(rop.INT_LE, lambda x, y: x <= y),
(rop.INT_EQ, lambda x, y: x == y),
(rop.INT_NE, lambda x, y: x != y),
(rop.INT_GT, lambda x, y: x > y),
(rop.INT_GE, lambda x, y: x >= y),
(rop.UINT_LT, lambda x, y: r_uint(x) < r_uint(y)),
(rop.UINT_LE, lambda x, y: r_uint(x) <= r_uint(y)),
(rop.UINT_GT, lambda x, y: r_uint(x) > r_uint(y)),
(rop.UINT_GE, lambda x, y: r_uint(x) >= r_uint(y)),
]:
for i in range(20):
x = pick()
if i == 1: # there should be at least one case
y = x # where the two arguments are equal
else:
y = pick()
z = int(operation(x, y))
yield opnum, [x, y], z
def _int_unary_operations():
minint = -sys.maxint-1
for opnum, testcases in [
(rop.INT_IS_TRUE, [(0, 0), (1, 1), (2, 1), (-1, 1), (minint, 1)]),
(rop.INT_NEG, [(0, 0), (123, -123), (-23127, 23127)]),
(rop.INT_INVERT, [(0, ~0), (-1, ~(-1)), (123, ~123)]),
(rop.INT_IS_ZERO, [(0, 1), (1, 0), (2, 0), (-1, 0), (minint, 0)]),
]:
for x, y in testcases:
yield opnum, [x], y
def get_int_tests():
for opnum, args, retvalue in (
list(_int_binary_operations()) +
list(_int_comparison_operations()) +
list(_int_unary_operations())):
yield opnum, [InputArgInt(x) for x in args], retvalue
if len(args) > 1:
assert len(args) == 2
yield opnum, [InputArgInt(args[0]), ConstInt(args[1])], retvalue
yield opnum, [ConstInt(args[0]), InputArgInt(args[1])], retvalue
if args[0] == args[1]:
commonbox = InputArgInt(args[0])
yield opnum, [commonbox, commonbox], retvalue
def test_int_ops():
cpu = FakeCPU()
for opnum, boxargs, retvalue in get_int_tests():
r = _execute_arglist(cpu, None, opnum, boxargs)
assert r == retvalue
# floats
def _float_binary_operations():
# Test cases. Note that for each operation there should be at least
# one case in which the two input arguments are equal.
for opnum, testcases in [
(rop.FLOAT_ADD, [(10.5, -2.25, 8.25),
(5.25, 5.25, 10.5)]),
(rop.FLOAT_SUB, [(10.5, -2.25, 12.75),
(5.25, 5.25, 0.0)]),
(rop.FLOAT_MUL, [(-6.5, -3.5, 22.75),
(1.5, 1.5, 2.25)]),
(rop.FLOAT_TRUEDIV, [(118.75, 12.5, 9.5),
(-6.5, -6.5, 1.0)]),
]:
for x, y, z in testcases:
yield (opnum, [x, y], 'float', z)
def _float_comparison_operations():
# Test cases. Note that for each operation there should be at least
# one case in which the two input arguments are equal.
for y in [-522.25, 10.125, 22.6]:
yield (rop.FLOAT_LT, [10.125, y], 'int', 10.125 < y)
yield (rop.FLOAT_LE, [10.125, y], 'int', 10.125 <= y)
yield (rop.FLOAT_EQ, [10.125, y], 'int', 10.125 == y)
yield (rop.FLOAT_NE, [10.125, y], 'int', 10.125 != y)
yield (rop.FLOAT_GT, [10.125, y], 'int', 10.125 > y)
yield (rop.FLOAT_GE, [10.125, y], 'int', 10.125 >= y)
yield (rop.FLOAT_EQ, [0.0, -0.0], 'int', 0.0 == -0.0)
def _float_unary_operations():
yield (rop.FLOAT_NEG, [-5.9], 'float', 5.9)
yield (rop.FLOAT_NEG, [15.9], 'float', -15.9)
yield (rop.FLOAT_ABS, [-5.9], 'float', 5.9)
yield (rop.FLOAT_ABS, [15.9], 'float', 15.9)
yield (rop.CAST_FLOAT_TO_INT, [-5.9], 'int', -5)
yield (rop.CAST_FLOAT_TO_INT, [5.9], 'int', 5)
yield (rop.CAST_INT_TO_FLOAT, [123], 'float', 123.0)
yield (rop.CAST_INT_TO_FLOAT, [-123], 'float', -123.0)
def get_float_tests(cpu):
if not cpu.supports_floats:
py.test.skip("requires float support from the backend")
for opnum, args, rettype, retvalue in (
list(_float_binary_operations()) +
list(_float_comparison_operations()) +
list(_float_unary_operations())):
boxargs = []
for x in args:
if isinstance(x, float):
boxargs.append(boxfloat(x))
else:
boxargs.append(InputArgInt(x))
yield opnum, boxargs, rettype, retvalue
if len(args) > 1:
assert len(args) == 2
yield opnum, [boxargs[0], wrap_constant(boxargs[1].getvalue())], rettype, retvalue
yield opnum, [wrap_constant(boxargs[0].getvalue()), boxargs[1]], rettype, retvalue
if (isinstance(args[0], float) and
isinstance(args[1], float) and
args[0] == args[1]):
commonbox = boxfloat(args[0])
yield opnum, [commonbox, commonbox], rettype, retvalue
def test_float_ops():
cpu = FakeCPU()
for opnum, boxargs, rettype, retvalue in get_float_tests(cpu):
res = _execute_arglist(cpu, None, opnum, boxargs)
if rettype == 'float':
res = longlong.getrealfloat(res)
assert res == retvalue
def make_args_for_op(op, a, b):
n=opname[op]
if n[0:3] == 'INT' or n[0:4] == 'UINT':
arg1 = ConstInt(a)
arg2 = ConstInt(b)
elif n[0:5] == 'FLOAT':
arg1 = constfloat(float(a))
arg2 = constfloat(float(b))
elif n[0:3] == 'PTR':
arg1 = ConstPtr(rffi.cast(llmemory.GCREF, a))
arg2 = ConstPtr(rffi.cast(llmemory.GCREF, b))
else:
raise NotImplementedError(
"Don't know how to make args for " + n)
return arg1, arg2
def test_opboolinvers():
cpu = FakeCPU()
for op1 in opclasses:
if op1 is None or op1.boolinverse == -1:
continue
op2 = opclasses[op1.boolinverse].opnum
op1 = op1.opnum
for a in (1,2,3):
for b in (1,2,3):
arg1, arg2 = make_args_for_op(op1, a, b)
box1 = execute(cpu, None, op1, None, arg1, arg2)
box2 = execute(cpu, None, op2, None, arg1, arg2)
assert box1 == (not box2)
def test_opboolreflex():
cpu = FakeCPU()
for op1 in opclasses:
if op1 is None or op1.boolreflex == -1:
continue
op2 = opclasses[op1.boolreflex].opnum
op1 = op1.opnum
for a in (1,2,3):
for b in (1,2,3):
arg1, arg2 = make_args_for_op(op1, a, b)
box1 = execute(cpu, None, op1, None, arg1, arg2)
box2 = execute(cpu, None, op2, None, arg2, arg1)
assert box1 == box2
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