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import re
from StringIO import StringIO
from rpython.rlib import debug
from rpython.jit.tool.oparser import pure_parse
from rpython.jit.metainterp import logger
from rpython.jit.metainterp.optimizeopt.util import equaloplists
from rpython.jit.metainterp.history import (
AbstractDescr, JitCellToken, BasicFailDescr, BasicFinalDescr)
class Descr(AbstractDescr):
final_descr = False
def capturing(func, *args, **kwds):
log_stream = StringIO()
class MyDebugLog:
def debug_print(self, *args):
for arg in args:
print >> log_stream, arg,
print >> log_stream
def debug_start(self, *args):
pass
def debug_stop(self, *args):
pass
try:
debug._log = MyDebugLog()
func(*args, **kwds)
finally:
debug._log = None
return log_stream.getvalue()
class Logger(logger.Logger):
def log_loop(self, loop, namespace={}, ops_offset=None, name=''):
self.namespace = namespace
return capturing(logger.Logger.log_loop, self,
loop.inputargs, loop.operations, ops_offset=ops_offset,
name=name)
def _make_log_operations(self1, memo):
class LogOperations(logger.LogOperations):
def repr_of_descr(self, descr):
for k, v in self1.namespace.items():
if v == descr:
return k
return descr.repr_of_descr()
logops = LogOperations(self1.metainterp_sd, self1.guard_number, memo)
self1.logops = logops
return logops
class TestLogger(object):
def make_metainterp_sd(self):
class FakeJitDriver(object):
class warmstate(object):
get_location_str = staticmethod(lambda args: "dupa")
class FakeMetaInterpSd:
jitdrivers_sd = [FakeJitDriver()]
def get_name_from_address(self, addr):
return 'Name'
return FakeMetaInterpSd()
def reparse(self, inp, namespace=None, check_equal=True):
""" parse loop once, then log it and parse again.
Checks that we get the same thing.
"""
if namespace is None:
namespace = {}
loop = pure_parse(inp, namespace=namespace)
logger = Logger(self.make_metainterp_sd())
output = logger.log_loop(loop, namespace)
oloop = pure_parse(output, namespace=namespace)
if check_equal:
remap = {}
for box1, box2 in zip(loop.inputargs, oloop.inputargs):
assert box1.__class__ == box2.__class__
remap[box2] = box1
equaloplists(loop.operations, oloop.operations, remap=remap)
return logger, loop, oloop
def test_simple(self):
inp = '''
[i0, i1, i2, p3, p4, p5]
i6 = int_add(i1, i2)
i8 = int_add(i6, 3)
jump(i0, i8, i6, p3, p4, p5)
'''
self.reparse(inp)
def test_descr(self):
inp = '''
[p0]
setfield_gc(p0, 3, descr=somedescr)
'''
somedescr = Descr()
self.reparse(inp, namespace=locals())
def test_guard(self):
inp = '''
[i0]
i1 = int_add(i0, 1)
guard_true(i0) [i0, i1]
finish(i1)
'''
self.reparse(inp)
def test_guard_not_invalidated(self):
inp = '''
[]
guard_not_invalidated(descr=descr) []
finish(descr=finaldescr)
'''
loop = pure_parse(inp, namespace={'descr': Descr(),
'finaldescr': BasicFinalDescr()})
logger = Logger(self.make_metainterp_sd())
output = logger.log_loop(loop, {'descr': Descr()})
assert 'guard_not_invalidated(descr=' in output
def test_guard_w_hole(self):
inp = '''
[i0]
i1 = int_add(i0, 1)
guard_true(i0) [i0, None, i1]
finish(i1)
'''
self.reparse(inp)
def test_debug_merge_point(self):
inp = '''
[]
debug_merge_point(0, 0, 0)
'''
_, loop, oloop = self.reparse(inp, check_equal=False)
assert loop.operations[0].getarg(1).getint() == 0
assert loop.operations[0].getarg(2).getint() == 0
assert oloop.operations[0].getarg(2)._get_str() == "dupa"
def test_jit_debug(self):
inp = '''
[]
jit_debug('foobar', -1, 5)
'''
_, loop, oloop = self.reparse(inp)
assert loop.operations[0].getarg(0)._get_str() == "foobar"
assert loop.operations[0].getarg(1).getint() == -1
assert oloop.operations[0].getarg(0)._get_str() == "foobar"
assert oloop.operations[0].getarg(1).getint() == -1
def test_floats(self):
inp = '''
[f0]
f1 = float_add(3.5, f0)
'''
_, loop, oloop = self.reparse(inp)
remap = {}
for box1, box2 in zip(loop.inputargs, oloop.inputargs):
assert box1.__class__ == box2.__class__
remap[box2] = box1
equaloplists(loop.operations, oloop.operations, remap=remap)
def test_jump(self):
namespace = {'target': JitCellToken()}
namespace['target'].number = 3
inp = '''
[i0]
jump(i0, descr=target)
'''
loop = pure_parse(inp, namespace=namespace)
logger = Logger(self.make_metainterp_sd())
output = logger.log_loop(loop)
assert output.splitlines()[-1] == "jump(i0, descr=<Loop3>)"
pure_parse(output)
def test_guard_descr(self):
namespace = {'fdescr': BasicFailDescr()}
inp = '''
[i0]
guard_true(i0, descr=fdescr) [i0]
'''
loop = pure_parse(inp, namespace=namespace)
logger = Logger(self.make_metainterp_sd(), guard_number=True)
output = logger.log_loop(loop)
assert re.match("guard_true\(i0, descr=<Guard0x[\da-f]+>\) \[i0\]", output.splitlines()[-1])
pure_parse(output)
logger = Logger(self.make_metainterp_sd(), guard_number=False)
output = logger.log_loop(loop)
lastline = output.splitlines()[-1]
assert lastline.startswith("guard_true(i0, descr=<")
assert not lastline.startswith("guard_true(i0, descr=<Guard")
def test_intro_loop(self):
bare_logger = logger.Logger(self.make_metainterp_sd())
output = capturing(bare_logger.log_loop, [], [], 1, "foo")
assert output.splitlines()[0] == "# Loop 1 () : foo with 0 ops"
pure_parse(output)
def test_intro_bridge(self):
bare_logger = logger.Logger(self.make_metainterp_sd())
output = capturing(bare_logger.log_bridge, [], [], 3)
assert re.match("# bridge out of Guard 0x[\da-f]+ with 0 ops",
output.splitlines()[0])
pure_parse(output)
def test_repr_single_op(self):
inp = '''
[i0, i1, i2, p3, p4, p5]
i6 = int_add(i1, i2)
i8 = int_add(i6, 3)
jump(i0, i8, i6, p3, p4, p5)
'''
logger, loop, _ = self.reparse(inp)
op = loop.operations[1]
assert logger.logops.repr_of_resop(op) == "i8 = int_add(i6, 3)"
def test_ops_offset(self):
inp = '''
[i0]
i1 = int_add(i0, 1)
i2 = int_mul(i1, 2)
jump(i2)
'''
loop = pure_parse(inp)
ops = loop.operations
ops_offset = {
ops[0]: 10,
ops[2]: 30,
None: 40
}
logger = Logger(self.make_metainterp_sd())
output = logger.log_loop(loop, ops_offset=ops_offset, name="foo")
assert output.strip() == """
# Loop 0 (foo) : noopt with 3 ops
[i0]
+10: i2 = int_add(i0, 1)
i4 = int_mul(i2, 2)
+30: jump(i4)
+40: --end of the loop--
""".strip()
def test_ops_offset_with_forward(self):
inp = '''
[i0]
i1 = int_add(i0, 4)
i2 = int_mul(i0, 8)
jump(i2)
'''
loop = pure_parse(inp)
ops = loop.operations
# again to get new ops with different identities to existing ones
loop2 = pure_parse(inp)
ops2 = loop.operations
# Suppose a re-write occurs which replaces the operations with these.
# The add 4 became a sub -4. The others are the same, but have a
# different address, thus still require forwarding.
inp2 = '''
[i0]
i1 = int_sub(i0, -4)
i2 = int_mul(i0, 8)
jump(i2)
'''
loop2 = pure_parse(inp2)
ops2 = loop2.operations
# Add forwarding
for i in xrange(3):
ops[i].set_forwarded(ops2[i])
# So the offsets are keyed by ops2 instances
ops_offset = {
ops2[0]: 10,
ops2[1]: 20,
ops2[2]: 30,
None: 40
}
logger = Logger(self.make_metainterp_sd())
output = logger.log_loop(loop, ops_offset=ops_offset, name="foo")
# The logger should have followed the forwarding pointers
lines = output.strip().splitlines()
assert lines[2].startswith("+10")
assert lines[3].startswith("+20")
assert lines[4].startswith("+30")
assert lines[5].startswith("+40")
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