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import sys
from pypy.module.pypyjit.test_pypy_c.test_00_model import BaseTestPyPyC
# XXX review the <Call> descrs to replace some EF=5 with EF=4 (elidable)
class TestString(BaseTestPyPyC):
def test_python3_missing_bchr(self):
# Check that 'bytes([i])' is special-cased into something
# efficient, as Python 3.5 doesn't have a bchr() function or
# anything more direct.
def main(n):
i = 0
result = b''
while i < n:
c = bytes([i])
result += c
i += 1
return i
log = self.run(main, [255])
assert log.result == 255
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
# nothing left like allocating a list object or doing any
# residual call
i49 = int_lt(i38, i26)
guard_true(i49, descr=...)
guard_not_invalidated(descr=...)
i51 = int_lt(i38, 256)
guard_true(i51, descr=...)
i53 = int_add(i38, 1)
--TICK--
i58 = strlen(p46)
i60 = int_add(i58, 1)
p61 = newstr(i60)
copystrcontent(p46, p61, 0, 0, i58)
strsetitem(p61, i58, i38)
p62 = newstr(1)
strsetitem(p62, 0, i38)
jump(..., descr=...)
""")
def test_lookup_default_encoding(self):
def main(n):
i = 0
letters = b'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
uletters = u'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
while i < n:
c = bytes([letters[i % len(uletters)]])
i += (c.decode() == uletters[i % len(uletters)])
return i
log = self.run(main, [300], import_site=True)
assert log.result == 300
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
i88 = int_lt(i83, i36)
guard_true(i88, descr=...)
guard_not_invalidated(descr=...)
i92 = int_eq(i83, %d)
i94 = call_i(ConstClass(ll_int_py_mod__Signed_Signed), i83, i46, descr=<Calli . ii EF=0 OS=14>)
i96 = int_lt(i94, 0)
guard_false(i96, descr=...)
i97 = int_ge(i94, i53)
guard_false(i97, descr=...)
i98 = strgetitem(p52, i94)
p103 = newstr(1)
strsetitem(p103, 0, i98)
p296 = call_r(ConstClass(str_decode_utf_8), p103, 1, ConstPtr(null), 1, ConstClass(raise_unicode_exception_decode), 0, descr=<Callr . ririii EF=4>)
guard_no_exception(descr=...)
p116 = getfield_gc_r(p296, descr=<FieldP tuple2.item0 . pure>)
i99 = int_ge(i94, i46)
guard_false(i99, descr=...)
i120 = unicodegetitem(p45, i94)
i122 = call_i(ConstClass(_ll_2_str_eq_nonnull_char__rpy_unicodePtr_UniChar), p116, i120, descr=<Calli . ri EF=0 OS=49>)
guard_true(i122, descr=...)
i124 = int_add(i83, 1)
--TICK--
jump(..., descr=...)
""" % (-sys.maxint-1,))
def test_int_base_16(self):
def main(n):
i = 1
while i < n:
digits = '0123456789'
i += int(digits[i % len(digits)], 16)
return i
log = self.run(main, [1100], import_site=True)
assert log.result == main(1100)
loop, = log.loops_by_filename(self.filepath)
if sys.maxint > 2**32:
args = (63, -3689348814741910323, 3)
else:
args = (31, -858993459, 3)
assert loop.match("""
i11 = int_lt(i6, i7)
guard_true(i11, descr=...)
guard_not_invalidated(descr=...)
i13 = int_eq(i6, %d) # value provided below
# "mod 10" block:
i79 = int_rshift(i6, %d)
i80 = int_xor(i6, i79)
i82 = uint_mul_high(i80, %d)
i84 = uint_rshift(i82, %d)
i85 = int_xor(i84, i79)
i87 = int_mul(i85, 10)
i19 = int_sub(i6, i87)
i23 = unicodegetitem(ConstPtr(ptr92), i19)
p25 = newunicode(1)
unicodesetitem(p25, 0, i23)
p97 = call_r(ConstClass(_rpy_unicode_to_decimal_w), p25, descr=<Callr . r EF=5>)
guard_no_exception(descr=...)
i98 = unicodelen(p97)
p104 = call_r(ConstClass(unicode_encode_utf_8), p97, i98, ConstPtr(ptr94), 1, descr=<Callr 8 riri EF=4>)
guard_no_exception(descr=...)
i107 = call_i(ConstClass(string_to_int), p104, 16, descr=<Calli . ri EF=4>)
guard_no_exception(descr=...)
i95 = int_add_ovf(i6, i107)
guard_no_overflow(descr=...)
--TICK--
jump(..., descr=...)
""" % ((-sys.maxint-1,)+args))
def test_str_mod(self):
def main(n):
s = 0
while n > 0:
s += len('%d %d' % (n, n))
n -= 1
return s
log = self.run(main, [1000])
assert log.result == main(1000)
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
i79 = int_gt(i74, 0)
guard_true(i79, descr=...)
guard_not_invalidated(descr=...)
p80 = call_r(ConstClass(ll_int2dec__Signed), i74, descr=<Callr . i EF=3>)
guard_no_exception(descr=...)
i85 = strlen(p80)
p86 = new(descr=<SizeDescr .+>)
p88 = newstr(23)
{{{
setfield_gc(p86, 0, descr=<FieldS stringbuilder.current_pos .+>)
setfield_gc(p86, p88, descr=<FieldP stringbuilder.current_buf .+>)
setfield_gc(p86, 23, descr=<FieldS stringbuilder.current_end .+>)
setfield_gc(p86, 23, descr=<FieldS stringbuilder.total_size .+>)
}}}
call_n(ConstClass(ll_append_res0__stringbuilderPtr_rpy_stringPtr), p86, p80, descr=<Callv 0 rr EF=5>)
guard_no_exception(descr=...)
i89 = getfield_gc_i(p86, descr=<FieldS stringbuilder.current_pos .+>)
i90 = getfield_gc_i(p86, descr=<FieldS stringbuilder.current_end .+>)
i91 = int_eq(i89, i90)
cond_call(i91, ConstClass(ll_grow_by__stringbuilderPtr_Signed), p86, 1, descr=<Callv 0 ri EF=5>)
guard_no_exception(descr=...)
i92 = getfield_gc_i(p86, descr=<FieldS stringbuilder.current_pos .+>)
i93 = int_add(i92, 1)
p94 = getfield_gc_r(p86, descr=<FieldP stringbuilder.current_buf .+>)
strsetitem(p94, i92, 32)
setfield_gc(p86, i93, descr=<FieldS stringbuilder.current_pos .+>)
call_n(ConstClass(ll_append_res0__stringbuilderPtr_rpy_stringPtr), p86, p80, descr=<Callv 0 rr EF=5>)
guard_no_exception(descr=...)
p95 = call_r(..., descr=<Callr . r EF=5>) # ll_build
guard_no_exception(descr=...)
i96 = strlen(p95)
i97 = int_add_ovf(i71, i96)
guard_no_overflow(descr=...)
i98 = int_sub(i74, 1)
--TICK--
jump(..., descr=...)
""")
def test_remove_duplicate_method_calls(self):
def main(n):
lst = []
for i in range(n):
s = 'Hello %d' % i
t = s.lower() # ID: callone
u = s.lower() # ID: calltwo
lst.append(t)
lst.append(u)
return len(','.join(lst))
log = self.run(main, [1000])
assert log.result == main(1000)
loops = log.loops_by_filename(self.filepath)
loop, = loops
assert loop.match_by_id('callone', '''
p114 = call_r(ConstClass(ll_lower__rpy_stringPtr), p113, descr=<Callr . r EF=3>)
guard_no_exception(descr=...)
''')
assert loop.match_by_id('calltwo', '') # nothing
def test_move_method_call_out_of_loop(self):
# XXX not implemented: lower() on unicodes is not considered elidable
def main(n):
lst = []
s = 'Hello %d' % n
for i in range(n):
t = s.lower() # ID: callone
lst.append(t)
return len(','.join(lst))
log = self.run(main, [1000])
assert log.result == main(1000)
loops = log.loops_by_filename(self.filepath)
loop, = loops
assert loop.match_by_id('callone', '') # nothing
def test_lookup_codec(self):
log = self.run("""
import codecs
def main(n):
for i in range(n):
codecs.lookup('utf8')
return i
""", [1000])
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
i45 = int_lt(i43, i26)
guard_true(i45, descr=...)
i46 = int_add(i43, 1)
setfield_gc(p15, i46, descr=<FieldS pypy.module.__builtin__.functional.W_IntRangeIterator.inst_current 8>)
guard_not_invalidated(descr=...)
--TICK--
jump(..., descr=...)
""")
def test_decode_ascii(self):
log = self.run("""
def main(n):
for i in range(n):
(b"x" * (i & 15)).decode('ascii')
return i
""", [1000])
loop, = log.loops_by_filename(self.filepath)
assert loop.match("""
i49 = int_lt(i47, i24)
guard_true(i49, descr=...)
i50 = int_add(i47, 1)
i53 = int_and(i47, 15)
setfield_gc(p15, i50, descr=<FieldS pypy.module.__builtin__.functional.W_IntRangeIterator.inst_current 8>)
i55 = int_le(i53, 0)
guard_false(i55, descr=...)
p80 = call_r(ConstClass(ll_char_mul__Char_Signed), 120, i53, descr=<Callr . ii EF=3>)
guard_no_exception(descr=...)
guard_not_invalidated(descr=...)
p53 = call_r(ConstClass(fast_str_decode_ascii), p80, descr=<Callr . r EF=4>)
guard_no_exception(descr=...)
--TICK--
jump(..., descr=...)
""")
# XXX remove the guard_nonnull above?
|
