def f(n):
while n > 0:
myjitdriver.can_enter_jit(n=n)
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.next1 = lltype.malloc(A, 0)
xy.next2 = lltype.malloc(A, 0)
xy.next3 = lltype.malloc(A, 0)
xy.next4 = lltype.malloc(A, 0)
xy.next5 = lltype.malloc(A, 0)
xy.n = n
exctx.topframeref = vref = virtual_ref(xy)
if n % 6 == 0:
xy.next1 = lltype.nullptr(A)
xy.next2 = lltype.nullptr(A)
xy.next3 = lltype.nullptr(A)
externalfn(n)
n -= 1
exctx.topframeref = vref_None
xy.next1 = lltype.nullptr(A)
xy.next2 = lltype.nullptr(A)
xy.next3 = lltype.nullptr(A)
xy.next4 = lltype.nullptr(A)
xy.next5 = lltype.nullptr(A)
virtual_ref_finish(vref, xy)
return exctx.m
def f(n):
while n > 0:
myjitdriver.can_enter_jit(n=n)
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.next1 = lltype.malloc(A, 0)
xy.next2 = lltype.malloc(A, 0)
xy.next3 = lltype.malloc(A, 0)
xy.next4 = lltype.malloc(A, 0)
xy.next5 = lltype.malloc(A, 0)
xy.n = n
exctx.topframeref = vref = virtual_ref(xy)
if n % 6 == 0:
xy.next1 = lltype.nullptr(A)
xy.next2 = lltype.nullptr(A)
xy.next3 = lltype.nullptr(A)
externalfn(n)
n -= 1
exctx.topframeref = vref_None
xy.next1 = lltype.nullptr(A)
xy.next2 = lltype.nullptr(A)
xy.next3 = lltype.nullptr(A)
xy.next4 = lltype.nullptr(A)
xy.next5 = lltype.nullptr(A)
virtual_ref_finish(vref, xy)
return exctx.m
def test_direct_invalid():
x1 = X()
vref = virtual_ref(x1)
assert vref._state == 'non-forced'
virtual_ref_finish(vref, x1)
assert vref._state == 'invalid'
py.test.raises(InvalidVirtualRef, "vref()")
def test_direct_invalid():
x1 = X()
vref = virtual_ref(x1)
assert vref._state == "non-forced"
virtual_ref_finish(vref, x1)
assert vref._state == "invalid"
py.test.raises(InvalidVirtualRef, "vref()")
def leave(self, frame, got_exception):
frame_vref = self.topframeref
self.topframeref = frame.backref
if frame.escaped or got_exception:
back = frame.backref()
if back is not None:
back.escaped = True
frame_vref()
jit.virtual_ref_finish(frame_vref, frame)
def leave_virtual_frame(self, vref, ref):
self.set_state(InactiveContext)
if vref is not jit.vref_None:
jit.virtual_ref_finish(vref, ref)
if vref is self._s_sender:
# If this frame was not manipulated, _s_sender is still our
# initial vref. If the frame was manipulated (or has no sender)
# _s_sender is already a non_virtual_ref.
self._s_sender = jit.non_virtual_ref(ref)
def leave_virtual_frame(self, vref, ref):
self.set_state(InactiveContext)
if vref is not jit.vref_None:
jit.virtual_ref_finish(vref, ref)
if vref is self._s_sender:
# If this frame was not manipulated, _s_sender is still our
# initial vref. If the frame was manipulated (or has no sender)
# _s_sender is already a non_virtual_ref.
self._s_sender = jit.non_virtual_ref(ref)
def leave(self, frame, got_exception):
frame_vref = self.topframeref
self.topframeref = frame.backref
if frame.escaped or got_exception:
back = frame.backref()
if back is not None:
back.escaped = True
frame_vref()
jit.virtual_ref_finish(frame_vref, frame)
def f(n):
res1 = -42
while n > 0:
myjitdriver.jit_merge_point(n=n, res1=res1)
x = X()
vref = virtual_ref(x)
res1 = residual(vref)
virtual_ref_finish(vref, x)
n -= 1
return res1
def leave(self, frame, got_exception, original_regexp_match_cell):
frame_vref = self.topframeref
self.topframeref = frame.backref
if frame.escaped or got_exception:
back = frame.backref()
if back is not None:
back.escaped = True
frame_vref()
jit.virtual_ref_finish(frame_vref, frame)
self.regexp_match_cell = original_regexp_match_cell
def f(n):
res1 = -42
while n > 0:
myjitdriver.jit_merge_point(n=n, res1=res1)
x = X()
vref = virtual_ref(x)
res1 = residual(vref)
virtual_ref_finish(vref, x)
n -= 1
return res1
def f(n):
ec = ExecutionContext()
while n > 0:
myjitdriver.jit_merge_point(n=n, ec=ec)
frame = Frame(1)
ec.topframeref = virtual_ref(frame)
n -= ec.topframeref().x
frame_vref = ec.topframeref
ec.topframeref = vref_None
virtual_ref_finish(frame_vref, frame)
return n
def f(n):
ec = ExecutionContext()
while n > 0:
myjitdriver.jit_merge_point(n=n, ec=ec)
frame = Frame(1)
ec.topframeref = virtual_ref(frame)
n -= ec.topframeref().x
frame_vref = ec.topframeref
ec.topframeref = vref_None
virtual_ref_finish(frame_vref, frame)
return n
def fn(n):
res = False
while n > 0:
myjitdriver.can_enter_jit(n=n)
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.n = n
vref = virtual_ref(xy)
virtual_ref_finish(vref, xy)
vref() # raises InvalidVirtualRef when jitted
n -= 1
return res
def test_direct_forced():
x1 = X()
vref = virtual_ref(x1)
assert vref._state == 'non-forced'
assert vref.virtual is True
assert vref() is x1
assert vref._state == 'forced'
assert vref.virtual is False
virtual_ref_finish(vref, x1)
assert vref._state == 'forced'
assert vref.virtual is False
assert vref() is x1
def test_direct_forced():
x1 = X()
vref = virtual_ref(x1)
assert vref._state == "non-forced"
assert vref.virtual is True
assert vref() is x1
assert vref._state == "forced"
assert vref.virtual is False
virtual_ref_finish(vref, x1)
assert vref._state == "forced"
assert vref.virtual is False
assert vref() is x1
def fn(n):
res = False
while n > 0:
myjitdriver.can_enter_jit(n=n)
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.n = n
vref = virtual_ref(xy)
virtual_ref_finish(vref, xy)
vref() # raises InvalidVirtualRef when jitted
n -= 1
return res
def f(n):
while n > 0:
myjitdriver.can_enter_jit(n=n)
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.n = n
exctx.topframeref = vref = virtual_ref(xy)
escapes.append(xy)
xy.next1 = lltype.malloc(A, 0)
n = exctx.topframeref().n - 1
exctx.topframeref = vref_None
virtual_ref_finish(vref, xy)
return 1
def f(n):
while n > 0:
myjitdriver.can_enter_jit(n=n)
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.n = n
exctx.topframeref = vref = virtual_ref(xy)
escapes.append(xy)
xy.next1 = lltype.malloc(A, 0)
n = exctx.topframeref().n - 1
exctx.topframeref = vref_None
virtual_ref_finish(vref, xy)
return 1
def fn(n):
res = 0
while n > 0:
myjitdriver.can_enter_jit(n=n, res=res)
myjitdriver.jit_merge_point(n=n, res=res)
xy = XY()
xy.n = n
vref = virtual_ref(xy)
force_it(vref, n)
virtual_ref_finish(vref, xy)
res += force_it(vref, n) # doesn't raise, because it was already forced
n -= 1
return res
def f(frame, n, reclevel):
while n > 0:
myjitdriver.can_enter_jit(n=n, frame=frame, rec=reclevel)
myjitdriver.jit_merge_point(n=n, frame=frame, rec=reclevel)
if reclevel == 0:
return n
xy = XY()
exctx.topframeref = vref = virtual_ref(xy)
m = f(xy, n, reclevel - 1)
assert m == n
n -= 1
exctx.topframeref = vref_None
virtual_ref_finish(vref, xy)
return 2
def f(frame, n, reclevel):
while n > 0:
myjitdriver.can_enter_jit(n=n, frame=frame, rec=reclevel)
myjitdriver.jit_merge_point(n=n, frame=frame, rec=reclevel)
if reclevel == 0:
return n
xy = XY()
exctx.topframeref = vref = virtual_ref(xy)
m = f(xy, n, reclevel-1)
assert m == n
n -= 1
exctx.topframeref = vref_None
virtual_ref_finish(vref, xy)
return 2
def fn(n):
res = 0
while n > 0:
myjitdriver.can_enter_jit(n=n, res=res)
myjitdriver.jit_merge_point(n=n, res=res)
xy = XY()
xy.n = n
vref = virtual_ref(xy)
force_it(vref, n)
virtual_ref_finish(vref, xy)
res += force_it(
vref, n) # doesn't raise, because it was already forced
n -= 1
return res
def f(n):
while n > 0:
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.n = n
vr = virtual_ref(xy)
# force the virtualref to be allocated
exctx.vr = vr
# force xy to be allocated
escapexy(xy)
# clean up
exctx.vr = vref_None
virtual_ref_finish(vr, xy)
n -= 1
return 1
def f(n):
while n > 0:
jitdriver.can_enter_jit(n=n)
jitdriver.jit_merge_point(n=n)
x = X()
x.n = n
exctx.topframeref = vref = virtual_ref(x)
# here, 'x' should be virtual
exctx.topframeref = vref_None
virtual_ref_finish(vref, x)
# 'x' and 'vref' can randomly escape after the call to
# finish().
g(vref)
n -= 1
return 1
def f(n):
while n > 0:
jitdriver.can_enter_jit(n=n)
jitdriver.jit_merge_point(n=n)
x = X()
x.n = n
exctx.topframeref = vref = virtual_ref(x)
# here, 'x' should be virtual
exctx.topframeref = vref_None
virtual_ref_finish(vref, x)
# 'x' and 'vref' can randomly escape after the call to
# finish().
g(vref)
n -= 1
return 1
def f(n):
while n > 0:
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.n = n
vr = virtual_ref(xy)
# force the virtualref to be allocated
exctx.vr = vr
# force xy to be allocated
escapexy(xy)
# clean up
exctx.vr = vref_None
virtual_ref_finish(vr, xy)
n -= 1
return 1
def f(frame, n, reclevel):
while n > 0:
myjitdriver.can_enter_jit(n=n, frame=frame, rec=reclevel)
myjitdriver.jit_merge_point(n=n, frame=frame, rec=reclevel)
frame.n += 1
xy = XY()
xy.n = n
exctx.topframeref = vref = virtual_ref(xy)
if reclevel > 0:
m = f(xy, frame.n, reclevel - 1)
assert xy.n == m
n -= 1
else:
n -= 2
exctx.topframeref = vref_None
virtual_ref_finish(vref, xy)
return frame.n
def leave(self, frame, w_exitvalue, got_exception):
try:
if self.profilefunc:
self._trace(frame, 'leaveframe', w_exitvalue)
finally:
frame_vref = self.topframeref
self.topframeref = frame.f_backref
if frame.escaped or got_exception:
# if this frame escaped to applevel, we must ensure that also
# f_back does
f_back = frame.f_backref()
if f_back:
f_back.mark_as_escaped()
# force the frame (from the JIT point of view), so that it can
# be accessed also later
frame_vref()
jit.virtual_ref_finish(frame_vref, frame)
def f(frame, n, reclevel):
while n > 0:
myjitdriver.can_enter_jit(n=n, frame=frame, rec=reclevel)
myjitdriver.jit_merge_point(n=n, frame=frame, rec=reclevel)
frame.n += 1
xy = XY()
xy.n = n
exctx.topframeref = vref = virtual_ref(xy)
if reclevel > 0:
m = f(xy, frame.n, reclevel-1)
assert xy.n == m
n -= 1
else:
n -= 2
exctx.topframeref = vref_None
virtual_ref_finish(vref, xy)
return frame.n
def f():
n = 0
while n < 100:
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.n = n
exctx.topframeref = vref = jit.virtual_ref(xy)
res = do_call(n) # this is equivalent of a cffi call which
# sometimes forces a frame
# when n==50, fn() will force the frame, so guard_not_forced
# fails and we enter blackholing: this test makes sure that
# the result of call_release_gil is kept alive before the
# raw_store, and that the corresponding box is passed
# in the fail_args. Before the fix, the result of
# call_release_gil was simply lost and when guard_not_forced
# failed, and the value of "res" was unpredictable.
# See commit b84ff38f34bd and subsequents.
assert res == n * 2
jit.virtual_ref_finish(vref, xy)
exctx.topframeref = jit.vref_None
n += 1
return n
def f():
n = 0
while n < 100:
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.n = n
exctx.topframeref = vref = jit.virtual_ref(xy)
res = do_call(n) # this is equivalent of a cffi call which
# sometimes forces a frame
# when n==50, fn() will force the frame, so guard_not_forced
# fails and we enter blackholing: this test makes sure that
# the result of call_release_gil is kept alive before the
# raw_store, and that the corresponding box is passed
# in the fail_args. Before the fix, the result of
# call_release_gil was simply lost and when guard_not_forced
# failed, and the value of "res" was unpredictable.
# See commit b84ff38f34bd and subsequents.
assert res == n*2
jit.virtual_ref_finish(vref, xy)
exctx.topframeref = jit.vref_None
n += 1
return n
def f(n):
while n > 0:
myjitdriver.can_enter_jit(n=n)
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.next1 = lltype.malloc(A, 0)
xy.next2 = lltype.malloc(A, 0)
xy.next3 = lltype.malloc(A, 0)
buf = lltype.malloc(rffi.CCHARP.TO, 1, flavor='raw')
buf[0] = chr(n)
# this is a raw virtual
xy.next4 = lltype.malloc(rffi.CCHARP.TO, 1, flavor='raw')
xy.n = n
exctx.topframeref = vref = virtual_ref(xy)
n -= externalfn(n)
xy.next1 = lltype.nullptr(A)
xy.next2 = lltype.nullptr(A)
xy.next3 = lltype.nullptr(A)
lltype.free(xy.next4, flavor='raw')
xy.next4 = lltype.nullptr(rffi.CCHARP.TO)
virtual_ref_finish(vref, xy)
exctx.topframeref = vref_None
lltype.free(buf, flavor='raw')
return exctx.m
def f(n):
while n > 0:
myjitdriver.can_enter_jit(n=n)
myjitdriver.jit_merge_point(n=n)
xy = XY()
xy.next1 = lltype.malloc(A, 0)
xy.next2 = lltype.malloc(A, 0)
xy.next3 = lltype.malloc(A, 0)
buf = lltype.malloc(rffi.CCHARP.TO, 1, flavor='raw')
buf[0] = chr(n)
# this is a raw virtual
xy.next4 = lltype.malloc(rffi.CCHARP.TO, 1, flavor='raw')
xy.n = n
exctx.topframeref = vref = virtual_ref(xy)
n -= externalfn(n)
xy.next1 = lltype.nullptr(A)
xy.next2 = lltype.nullptr(A)
xy.next3 = lltype.nullptr(A)
lltype.free(xy.next4, flavor='raw')
xy.next4 = lltype.nullptr(rffi.CCHARP.TO)
virtual_ref_finish(vref, xy)
exctx.topframeref = vref_None
lltype.free(buf, flavor='raw')
return exctx.m
def leave():
vref = exctx.topframeref
exctx.topframeref = vref_None
virtual_ref_finish(vref, exctx._frame)
def f():
x = X()
exctx.topframeref = vref = virtual_ref(x)
exctx.topframeref = vref_None
virtual_ref_finish(vref, x)
return 1
def f(n, x, x0, x1, x2, x3, x4, x5, x6, x7, l, s):
a = A()
glob.v = vref = virtual_ref(a)
virtual_ref_finish(vref, a)
n -= 1
return n, x, x0, x1, x2, x3, x4, x5, x6, x7, l, s
def leave(self, frame):
frame_vref = self.topframeref
self.topframeref = frame.f_backref
frame.f_backref()
virtual_ref_finish(frame_vref, frame)
def leave():
vref = exctx.topframeref
exctx.topframeref = vref_None
virtual_ref_finish(vref, exctx._frame)
def f():
x1 = X()
vref = virtual_ref(x1)
x2 = vref()
virtual_ref_finish(vref, x1)
return x2
def fn():
x = X()
vref = virtual_ref(x)
x1 = vref() # jit_force_virtual
virtual_ref_finish(vref, x)
def leave(self, frame):
jit.virtual_ref_finish(self.topframeref, frame)
self.topframeref = frame.f_backref
def f():
x = X()
exctx.topframeref = vref = virtual_ref(x)
exctx.topframeref = vref_None
virtual_ref_finish(vref, x)
return 1
def f(n, x, x0, x1, x2, x3, x4, x5, x6, x7, l, s):
a = A()
glob.v = vref = virtual_ref(a)
virtual_ref_finish(vref, a)
n -= 1
return n, x, x0, x1, x2, x3, x4, x5, x6, x7, l, s
def fn():
x = X()
vref = virtual_ref(x)
x1 = vref() # jit_force_virtual
virtual_ref_finish(vref, x)
def f():
x1 = X()
vref = virtual_ref(x1)
x2 = vref()
virtual_ref_finish(vref, x1)
return x2
def leave(self, frame):
frame_vref = self.topframeref
self.topframeref = frame.f_backref
frame.f_backref()
virtual_ref_finish(frame_vref, frame)