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from rpython.jit.codewriter.liveness import compute_liveness, OFFSET_SIZE
from rpython.jit.codewriter.liveness import encode_offset, decode_offset
from rpython.jit.codewriter.liveness import encode_liveness, LivenessIterator
from rpython.jit.codewriter.format import unformat_assembler, assert_format
from hypothesis import strategies, given, example
class TestFlatten:
def liveness_test(self, input, output):
ssarepr = unformat_assembler(input)
compute_liveness(ssarepr)
assert_format(ssarepr, output)
def test_simple_no_live(self):
self.liveness_test("""
-live-
int_add %i0, $10 -> %i1
-live-
""", """
-live- %i0
int_add %i0, $10 -> %i1
-live-
""")
def test_simple(self):
self.liveness_test("""
-live-
int_add %i0, $10 -> %i1
-live-
int_add %i0, $3 -> %i2
-live-
int_mul %i1, %i2 -> %i3
-live-
int_add %i0, $6 -> %i4
-live-
int_mul %i3, %i4 -> %i5
-live-
int_return %i5
""", """
-live- %i0
int_add %i0, $10 -> %i1
-live- %i0, %i1
int_add %i0, $3 -> %i2
-live- %i0, %i1, %i2
int_mul %i1, %i2 -> %i3
-live- %i0, %i3
int_add %i0, $6 -> %i4
-live- %i3, %i4
int_mul %i3, %i4 -> %i5
-live- %i5
int_return %i5
""")
def test_one_path(self):
self.liveness_test("""
int_add %i0, $5 -> %i2
-live-
int_is_true %i2 -> %i3
goto_if_not %i3, L1
int_copy %i0 -> %i4
int_add %i4, $1 -> %i5
-live-
int_return %i5
---
L1:
int_copy %i1 -> %i6
int_add %i6, $2 -> %i7
-live-
int_return %i7
""", """
int_add %i0, $5 -> %i2
-live- %i0, %i1, %i2
int_is_true %i2 -> %i3
goto_if_not %i3, L1
int_copy %i0 -> %i4
int_add %i4, $1 -> %i5
-live- %i5
int_return %i5
---
L1:
int_copy %i1 -> %i6
int_add %i6, $2 -> %i7
-live- %i7
int_return %i7
""")
def test_other_path(self):
self.liveness_test("""
int_add %i0, $5 -> %i2
-live- %i2
int_is_true %i2 -> %i3
goto_if_not %i3, L1
int_copy %i0 -> %i4
int_copy %i1 -> %i5
int_add %i4, %i5 -> %i6
-live- %i6
int_return %i6
---
L1:
int_copy %i0 -> %i7
int_add %i7, $2 -> %i8
-live- %i8
int_return %i8
""", """
int_add %i0, $5 -> %i2
-live- %i0, %i1, %i2
int_is_true %i2 -> %i3
goto_if_not %i3, L1
int_copy %i0 -> %i4
int_copy %i1 -> %i5
int_add %i4, %i5 -> %i6
-live- %i6
int_return %i6
---
L1:
int_copy %i0 -> %i7
int_add %i7, $2 -> %i8
-live- %i8
int_return %i8
""")
def test_no_path(self):
self.liveness_test("""
int_add %i0, %i1 -> %i2
-live- %i2
int_is_true %i2 -> %i3
goto_if_not %i3, L1
int_copy %i0 -> %i4
int_add %i4, $5 -> %i5
-live- %i5
int_return %i5
---
L1:
int_copy %i0 -> %i6
int_add %i6, $2 -> %i7
-live- %i7
int_return %i7
""", """
int_add %i0, %i1 -> %i2
-live- %i0, %i2
int_is_true %i2 -> %i3
goto_if_not %i3, L1
int_copy %i0 -> %i4
int_add %i4, $5 -> %i5
-live- %i5
int_return %i5
---
L1:
int_copy %i0 -> %i6
int_add %i6, $2 -> %i7
-live- %i7
int_return %i7
""")
def test_list_of_kind(self):
self.liveness_test("""
-live-
foobar I[$25, %i0]
""", """
-live- %i0
foobar I[$25, %i0]
""")
def test_switch(self):
self.liveness_test("""
goto_maybe L1
-live-
fooswitch <SwitchDictDescr 4:L2, 5:L3>
---
L3:
int_return %i7
---
L1:
int_return %i4
---
L2:
int_return %i3
""", """
goto_maybe L1
-live- %i3, %i7
fooswitch <SwitchDictDescr 4:L2, 5:L3>
---
L3:
int_return %i7
---
L1:
int_return %i4
---
L2:
int_return %i3
""")
def test_already_some(self):
self.liveness_test("""
foo %i0, %i1, %i2
-live- %i0, $52, %i2, %i0
bar %i3, %i4, %i5
""", """
foo %i0, %i1, %i2
-live- %i0, %i2, %i3, %i4, %i5
bar %i3, %i4, %i5
""")
def test_keepalive(self):
self.liveness_test("""
-live-
build $1 -> %i6
-live-
foo %i0, %i1 -> %i2
-live-
bar %i3, %i2 -> %i5
-live- %i6
""", """
-live- %i0, %i1, %i3
build $1 -> %i6
-live- %i0, %i1, %i3, %i6
foo %i0, %i1 -> %i2
-live- %i2, %i3, %i6
bar %i3, %i2 -> %i5
-live- %i6
""")
def test_live_with_label(self):
self.liveness_test("""
-live- L1
foo %i0
---
L1:
bar %i1
""", """
-live- %i0, %i1, L1
foo %i0
---
L1:
bar %i1
""")
def test_live_duplicate(self):
self.liveness_test("""
-live- L1
-live- %i12
foo %i0
---
L1:
bar %i1
""", """
-live- %i0, %i1, %i12, L1
foo %i0
---
L1:
bar %i1
""")
self.liveness_test("""
goto_if_not %i3, L1
-live-
L2:
-live-
L3:
-live- %i19
int_return %i0
---
L1:
int_add %i0, $1 -> %i0
goto L2
""", """
goto_if_not %i3, L1
L2:
-live- %i0, %i19
int_return %i0
---
L1:
int_add %i0, $1 -> %i0
goto L2
""")
class TestEncodeDecode(object):
@given(strategies.integers(min_value=0, max_value=2**(8 * OFFSET_SIZE)-1), strategies.binary(), strategies.binary())
def test_encode_decode_offset(self, x, prefix, postfix):
l = []
encode_offset(x, l)
data = prefix + "".join(l) + postfix
assert decode_offset(data, len(prefix)) == x
def test_liveness_encoding(self):
res = encode_liveness({})
assert res == ''
res = encode_liveness({'\x00'})
assert res == '\x01'
res = encode_liveness({'\x01'})
assert res == '\x02'
res = encode_liveness({'\x02'})
assert res == '\x04'
res = encode_liveness({'\x03'})
assert res == '\x08'
res = encode_liveness({'\x01', '\x02'})
assert res == '\x06'
res = encode_liveness({'\x08'})
assert res == '\x00\x01'
res = encode_liveness({'\x01', '\x09'})
assert res == '\x02\x02'
def test_liveness_iterator(self):
liveness = '\x04\x01'
l = list(LivenessIterator(0, 2, liveness))
assert l == [2, 8]
@example({0, 9})
@given(strategies.sets(strategies.integers(min_value=0, max_value=255), min_size=1))
def test_encode_decode_liveness(self, live):
live_chars = [chr(i) for i in live]
res = encode_liveness(live_chars)
l = list(LivenessIterator(0, len(live), res))
s = set(l)
assert len(l) == len(s)
assert s == live
@given(strategies.sets(strategies.integers(min_value=0, max_value=255)),
strategies.sets(strategies.integers(min_value=0, max_value=255)),
strategies.sets(strategies.integers(min_value=0, max_value=255)))
def test_encode_decode_liveness_3(self, live_i, live_r, live_f):
live_i_chars = [chr(i) for i in live_i]
live_r_chars = [chr(i) for i in live_r]
live_f_chars = [chr(i) for i in live_f]
all_liveness = encode_liveness(live_i_chars) + encode_liveness(live_r_chars) + encode_liveness(live_f_chars)
offset = 0
length_i = len(live_i)
length_r = len(live_r)
length_f = len(live_f)
if length_i:
it = LivenessIterator(offset, length_i, all_liveness)
s = set(it)
assert s == live_i
offset = it.offset
if length_r:
it = LivenessIterator(offset, length_r, all_liveness)
s = set(it)
assert s == live_r
offset = it.offset
if length_f:
it = LivenessIterator(offset, length_f, all_liveness)
s = set(it)
assert s == live_f
offset = it.offset
|
