Author: Richard Plangger <planri...@gmail.com>
Branch: ppc-vsx-support
Changeset: r85597:fb6cdfd34d1b
Date: 2016-07-07 13:58 +0200
http://bitbucket.org/pypy/pypy/changeset/fb6cdfd34d1b/
Log: merge default
diff --git a/pypy/module/_cffi_backend/ctypestruct.py
b/pypy/module/_cffi_backend/ctypestruct.py
--- a/pypy/module/_cffi_backend/ctypestruct.py
+++ b/pypy/module/_cffi_backend/ctypestruct.py
@@ -90,7 +90,7 @@
self.force_lazy_struct()
space = self.space
try:
- cfield = self._fields_dict[fieldname]
+ cfield = self._getcfield_const(fieldname)
except KeyError:
raise OperationError(space.w_KeyError, space.wrap(fieldname))
if cfield.bitshift >= 0:
diff --git a/pypy/module/cpyext/test/test_cpyext.py
b/pypy/module/cpyext/test/test_cpyext.py
--- a/pypy/module/cpyext/test/test_cpyext.py
+++ b/pypy/module/cpyext/test/test_cpyext.py
@@ -129,6 +129,7 @@
return str(soname)
def freeze_refcnts(self):
+ rawrefcount._dont_free_any_more()
return #ZZZ
state = self.space.fromcache(RefcountState)
self.frozen_refcounts = {}
diff --git a/pypy/module/itertools/interp_itertools.py
b/pypy/module/itertools/interp_itertools.py
--- a/pypy/module/itertools/interp_itertools.py
+++ b/pypy/module/itertools/interp_itertools.py
@@ -835,7 +835,7 @@
data before the other iterator, it is faster to use list() instead
of tee()
- Equivalent to :
+ If iter(iterable) has no method __copy__(), this is equivalent to:
def tee(iterable, n=2):
def gen(next, data={}, cnt=[0]):
@@ -848,17 +848,22 @@
yield item
it = iter(iterable)
return tuple([gen(it.next) for i in range(n)])
+
+ If iter(iterable) has a __copy__ method, though, we just return
+ a tuple t = (iterable, t[0].__copy__(), t[1].__copy__(), ...).
"""
if n < 0:
raise oefmt(space.w_ValueError, "n must be >= 0")
- if isinstance(w_iterable, W_TeeIterable): # optimization only
- chained_list = w_iterable.chained_list
- w_iterator = w_iterable.w_iterator
+ if space.findattr(w_iterable, space.wrap("__copy__")) is not None:
+ # In this case, we don't instantiate any W_TeeIterable.
+ # We just rely on doing repeated __copy__(). This case
+ # includes the situation where w_iterable is already
+ # a W_TeeIterable itself.
iterators_w = [w_iterable] * n
for i in range(1, n):
- iterators_w[i] = space.wrap(W_TeeIterable(space, w_iterator,
- chained_list))
+ w_iterable = space.call_method(w_iterable, "__copy__")
+ iterators_w[i] = w_iterable
else:
w_iterator = space.iter(w_iterable)
chained_list = TeeChainedListNode()
@@ -891,6 +896,11 @@
self.chained_list = chained_list.next
return w_obj
+ def copy_w(self):
+ space = self.space
+ tee_iter = W_TeeIterable(space, self.w_iterator, self.chained_list)
+ return space.wrap(tee_iter)
+
def W_TeeIterable___new__(space, w_subtype, w_iterable):
# Obscure and undocumented function. PyPy only supports w_iterable
# being a W_TeeIterable, because the case where it is a general
@@ -906,6 +916,7 @@
__new__ = interp2app(W_TeeIterable___new__),
__iter__ = interp2app(W_TeeIterable.iter_w),
next = interp2app(W_TeeIterable.next_w),
+ __copy__ = interp2app(W_TeeIterable.copy_w),
__weakref__ = make_weakref_descr(W_TeeIterable),
)
W_TeeIterable.typedef.acceptable_as_base_class = False
diff --git a/pypy/module/itertools/test/test_itertools.py
b/pypy/module/itertools/test/test_itertools.py
--- a/pypy/module/itertools/test/test_itertools.py
+++ b/pypy/module/itertools/test/test_itertools.py
@@ -702,6 +702,48 @@
x = d.next()
assert x == 'b'
+ def test_tee_defines_copy(self):
+ import itertools
+ a, b = itertools.tee('abc')
+ c = b.__copy__()
+ assert list(a) == ['a', 'b', 'c']
+ assert list(b) == ['a', 'b', 'c']
+ assert list(c) == ['a', 'b', 'c']
+ a, = itertools.tee('abc', 1)
+ x = a.next()
+ assert x == 'a'
+ b = a.__copy__()
+ x = a.next()
+ assert x == 'b'
+ x = b.next()
+ assert x == 'b'
+
+ def test_tee_function_uses_copy(self):
+ import itertools
+ class MyIterator(object):
+ def __iter__(self):
+ return self
+ def next(self):
+ raise NotImplementedError
+ def __copy__(self):
+ return iter('def')
+ my = MyIterator()
+ a, = itertools.tee(my, 1)
+ assert a is my
+ a, b = itertools.tee(my)
+ assert a is my
+ assert b is not my
+ assert list(b) == ['d', 'e', 'f']
+ # this gives AttributeError because it tries to call
+ # my.__copy__().__copy__() and there isn't one
+ raises(AttributeError, itertools.tee, my, 3)
+
+ def test_tee_function_empty(self):
+ import itertools
+ assert itertools.tee('abc', 0) == ()
+ a, = itertools.tee('abc', 1)
+ assert itertools.tee(a, 0) == ()
+
class AppTestItertools26:
spaceconfig = dict(usemodules=['itertools'])
diff --git a/rpython/jit/backend/zarch/assembler.py
b/rpython/jit/backend/zarch/assembler.py
--- a/rpython/jit/backend/zarch/assembler.py
+++ b/rpython/jit/backend/zarch/assembler.py
@@ -317,7 +317,7 @@
self._push_fp_regs_to_jitframe(mc)
- # First argument is SPP (= r31), which is the jitframe
+ # First argument is SPP, which is the jitframe
mc.LGR(r.r2, r.SPP)
# no need to move second argument (frame_depth),
@@ -385,14 +385,12 @@
# signature of these cond_call_slowpath functions:
# * on entry, r11 contains the function to call
# * r2, r3, r4, r5 contain arguments for the call
- # * r0 is the gcmap
+ # * gcmap is pushed
# * the old value of these regs must already be stored in the
jitframe
# * on exit, all registers are restored from the jitframe
mc = InstrBuilder()
self.mc = mc
- ofs2 = self.cpu.get_ofs_of_frame_field('jf_gcmap')
- mc.STG(r.SCRATCH2, l.addr(ofs2,r.SPP))
mc.store_link()
mc.push_std_frame()
@@ -502,7 +500,6 @@
# r.RSZ is loaded from [r1], to make the caller's store a no-op here
mc.load(r.RSZ, r.r1, 0)
#
- self.pop_gcmap(mc) # push_gcmap(store=True) done by the caller
mc.restore_link()
mc.BCR(c.ANY, r.r14)
self.mc = None
diff --git a/rpython/jit/backend/zarch/opassembler.py
b/rpython/jit/backend/zarch/opassembler.py
--- a/rpython/jit/backend/zarch/opassembler.py
+++ b/rpython/jit/backend/zarch/opassembler.py
@@ -387,8 +387,7 @@
if reg in self._COND_CALL_SAVE_REGS]
self._push_core_regs_to_jitframe(self.mc, should_be_saved)
- # load gc map into unusual location: r0
- self.load_gcmap(self.mc, r.SCRATCH2, regalloc.get_gcmap())
+ self.push_gcmap(self.mc, regalloc.get_gcmap())
#
# load the 0-to-4 arguments into these registers, with the address of
# the function to call into r11
diff --git a/rpython/jit/backend/zarch/test/test_runner.py
b/rpython/jit/backend/zarch/test/test_runner.py
--- a/rpython/jit/backend/zarch/test/test_runner.py
+++ b/rpython/jit/backend/zarch/test/test_runner.py
@@ -26,4 +26,4 @@
add_loop_instructions = "lg; lgr; larl; agr; cgfi; jge; j;$"
bridge_loop_instructions = "lg; cgfi; jnl; lghi; " \
- "(lgfi|iilf);( iihf;)? (lgfi|iilf);( iihf;)?
basr; larl; (lgfi|iilf);( iihf;)? br;$"
+ "(lgfi|iilf);( iihf;)? (lgfi|iilf);( iihf;)?
stg; basr; larl; (lgfi|iilf);( iihf;)? br;$"
diff --git a/rpython/jit/metainterp/optimizeopt/intdiv.py
b/rpython/jit/metainterp/optimizeopt/intdiv.py
--- a/rpython/jit/metainterp/optimizeopt/intdiv.py
+++ b/rpython/jit/metainterp/optimizeopt/intdiv.py
@@ -1,5 +1,5 @@
from rpython.rlib.rarithmetic import LONG_BIT, intmask, r_uint
-from rpython.rlib.rbigint import rbigint, ONERBIGINT
+
from rpython.jit.metainterp.history import ConstInt
from rpython.jit.metainterp.resoperation import ResOperation, rop
@@ -17,10 +17,19 @@
while (r_uint(1) << (i+1)) < r_uint(m):
i += 1
- # k = 2**(64+i) // m + 1, computed manually using rbigint
- # because that's the easiest
- k1 = ONERBIGINT.lshift(LONG_BIT + i).floordiv(rbigint.fromint(m))
- k = k1.touint() + r_uint(1)
+ # quotient = 2**(64+i) // m
+ high_word_dividend = r_uint(1) << i
+ quotient = r_uint(0)
+ for bit in range(LONG_BIT-1, -1, -1):
+ t = quotient + (r_uint(1) << bit)
+ # check: is 't * m' small enough to be < 2**(64+i), or not?
+ # note that we're really computing (2**(64+i)-1) // m, but the result
+ # is the same, because powers of two are not multiples of m.
+ if unsigned_mul_high(t, r_uint(m)) < high_word_dividend:
+ quotient = t # yes, small enough
+
+ # k = 2**(64+i) // m + 1
+ k = quotient + r_uint(1)
assert k != r_uint(0)
# Proof that k < 2**64 holds in all cases, even with the "+1":
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