1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
|
from rpython.jit.backend.llsupport.rewrite import cpu_simplify_scale
from rpython.jit.backend.llsupport.descr import (unpack_arraydescr,
unpack_fielddescr, unpack_interiorfielddescr, ArrayDescr)
from rpython.rlib.objectmodel import specialize, always_inline
from rpython.jit.metainterp.history import (VECTOR, FLOAT, INT, ConstInt)
from rpython.jit.metainterp.resoperation import rop
from rpython.jit.metainterp.optimizeopt.schedule import (forwarded_vecinfo,
failnbail_transformation)
from rpython.jit.metainterp.jitexc import NotAVectorizeableLoop
from rpython.rlib.objectmodel import we_are_translated
from rpython.rtyper.lltypesystem.lloperation import llop
from rpython.rtyper.lltypesystem import lltype
from rpython.rlib.debug import debug_print
class TypeRestrict(object):
ANY_TYPE = '\x00'
ANY_SIZE = -1
ANY_SIGN = -1
ANY_COUNT = -1
SIGNED = 1
UNSIGNED = 0
def __init__(self,
type=ANY_TYPE,
bytesize=ANY_SIZE,
count=ANY_SIGN,
sign=ANY_COUNT):
self.type = type
self.bytesize = bytesize
self.sign = sign
self.count = count
@always_inline
def any_size(self):
return self.bytesize == TypeRestrict.ANY_SIZE
@always_inline
def any_count(self):
return self.count == TypeRestrict.ANY_COUNT
def check(self, value):
vecinfo = forwarded_vecinfo(value)
assert vecinfo.datatype != '\x00'
if self.type != TypeRestrict.ANY_TYPE:
if self.type != vecinfo.datatype:
msg = "type mismatch %s != %s" % \
(self.type, vecinfo.datatype)
failnbail_transformation(msg)
assert vecinfo.bytesize > 0
if not self.any_size():
if self.bytesize != vecinfo.bytesize:
msg = "bytesize mismatch %s != %s" % \
(self.bytesize, vecinfo.bytesize)
failnbail_transformation(msg)
assert vecinfo.count > 0
if self.count != TypeRestrict.ANY_COUNT:
if vecinfo.count < self.count:
msg = "count mismatch %s < %s" % \
(self.count, vecinfo.count)
failnbail_transformation(msg)
if self.sign != TypeRestrict.ANY_SIGN:
if bool(self.sign) == vecinfo.sign:
msg = "sign mismatch %s < %s" % \
(self.sign, vecinfo.sign)
failnbail_transformation(msg)
def max_input_count(self, count):
""" How many """
if self.count != TypeRestrict.ANY_COUNT:
return self.count
return count
class OpRestrict(object):
def __init__(self, argument_restris):
self.argument_restrictions = argument_restris
def check_operation(self, state, pack, op):
return None
def crop_vector(self, op, newsize, size):
return newsize, size
def must_crop_vector(self, op, index):
restrict = self.argument_restrictions[index]
vecinfo = forwarded_vecinfo(op.getarg(index))
size = vecinfo.bytesize
newsize = self.crop_to_size(op, index)
return not restrict.any_size() and newsize != size
@always_inline
def crop_to_size(self, op, index):
restrict = self.argument_restrictions[index]
return restrict.bytesize
def opcount_filling_vector_register(self, op, vec_reg_size):
""" How many operations of that kind can one execute
with a machine instruction of register size X?
"""
if op.is_typecast():
if op.casts_down():
size = op.cast_input_bytesize(vec_reg_size)
return size // op.cast_from_bytesize()
else:
return vec_reg_size // op.cast_to_bytesize()
vecinfo = forwarded_vecinfo(op)
return vec_reg_size // vecinfo.bytesize
class GuardRestrict(OpRestrict):
def opcount_filling_vector_register(self, op, vec_reg_size):
arg = op.getarg(0)
vecinfo = forwarded_vecinfo(arg)
return vec_reg_size // vecinfo.bytesize
class LoadRestrict(OpRestrict):
def check_operation(self, state, pack, op):
opnum = op.getopnum()
descr = op.getdescr()
if not we_are_translated() and not isinstance(descr, ArrayDescr):
itemsize = descr.get_item_size_in_bytes()
ofs = 0
else:
itemsize, ofs, _ = unpack_arraydescr(op.getdescr())
args = [op.getarg(0), op.getarg(1), ConstInt(1), ConstInt(ofs)]
if rop.is_getarrayitem(opnum) or \
opnum in (rop.GETARRAYITEM_RAW_I, rop.GETARRAYITEM_RAW_F):
index_box = op.getarg(1)
scale, offset, changed, emit = cpu_simplify_scale(state.cpu, index_box, itemsize, ofs)
args[2] = ConstInt(scale)
args[3] = ConstInt(offset)
if emit:
state.oplist.append(changed)
args[1] = changed
return args
def opcount_filling_vector_register(self, op, vec_reg_size):
assert rop.is_primitive_load(op.opnum)
descr = op.getdescr()
return vec_reg_size // descr.get_item_size_in_bytes()
class StoreRestrict(OpRestrict):
def __init__(self, argument_restris):
self.argument_restrictions = argument_restris
def check_operation(self, state, pack, op):
opnum = op.getopnum()
descr = op.getdescr()
if not we_are_translated() and not isinstance(descr, ArrayDescr):
itemsize = descr.get_item_size_in_bytes()
ofs = 0
else:
itemsize, ofs, _ = unpack_arraydescr(op.getdescr())
args = [op.getarg(0), op.getarg(1), op.getarg(2), ConstInt(1), ConstInt(ofs)]
if opnum in (rop.SETARRAYITEM_GC, rop.SETARRAYITEM_RAW):
index_box = op.getarg(1)
scale, offset, changed, emit = cpu_simplify_scale(state.cpu, index_box, itemsize, ofs)
args[3] = ConstInt(scale)
args[4] = ConstInt(offset)
if emit:
state.oplist.append(changed)
args[1] = changed
return args
def must_crop_vector(self, op, index):
vecinfo = forwarded_vecinfo(op.getarg(index))
bytesize = vecinfo.bytesize
return self.crop_to_size(op, index) != bytesize
@always_inline
def crop_to_size(self, op, index):
# there is only one parameter that needs to be transformed!
descr = op.getdescr()
return descr.get_item_size_in_bytes()
def opcount_filling_vector_register(self, op, vec_reg_size):
assert rop.is_primitive_store(op.opnum)
descr = op.getdescr()
return vec_reg_size // descr.get_item_size_in_bytes()
class OpMatchSizeTypeFirst(OpRestrict):
def check_operation(self, state, pack, op):
i = 0
infos = [forwarded_vecinfo(o) for o in op.getarglist()]
arg0 = op.getarg(i)
while arg0.is_constant() and i < op.numargs():
i += 1
arg0 = op.getarg(i)
vecinfo = forwarded_vecinfo(arg0)
bytesize = vecinfo.bytesize
datatype = vecinfo.datatype
for arg in op.getarglist():
if arg.is_constant():
continue
curvecinfo = forwarded_vecinfo(arg)
if curvecinfo.bytesize != bytesize:
debug_print("op match size first type failed")
raise NotAVectorizeableLoop
if curvecinfo.datatype != datatype:
debug_print("op match size first type failed (datatype)")
raise NotAVectorizeableLoop
return None
TR_ANY = TypeRestrict()
TR_ANY_FLOAT = TypeRestrict(FLOAT)
TR_ANY_INTEGER = TypeRestrict(INT)
TR_FLOAT_2 = TypeRestrict(FLOAT, 4, 2)
TR_DOUBLE_2 = TypeRestrict(FLOAT, 8, 2)
TR_INT32_2 = TypeRestrict(INT, 4, 2)
TR_INT64_2 = TypeRestrict(INT, 8, 2)
OR_MSTF_I = OpMatchSizeTypeFirst([TR_ANY_INTEGER, TR_ANY_INTEGER])
OR_MSTF_F = OpMatchSizeTypeFirst([TR_ANY_FLOAT, TR_ANY_FLOAT])
STORE_RESTRICT = StoreRestrict([None, None, TR_ANY])
LOAD_RESTRICT = LoadRestrict([])
GUARD_RESTRICT = GuardRestrict([TR_ANY_INTEGER])
class VectorExt(object):
should_align_unroll = True
def __init__(self):
self._enabled = False
self.register_size = 0 # in bytes
self.accum = False
self._setup = False
def is_setup(self):
return self._setup
def setup_once(self):
raise NotImplementedError
def enable(self, vec_size, accum=False):
self._enabled = vec_size != 0
self.register_size = vec_size
self.accum = accum
def is_enabled(self):
return self._enabled
def vec_size(self):
return self.register_size
def supports_accumulation(self):
return self.accum
# note that the following definition is x86 arch specific
TR_MAPPING = {
rop.VEC_INT_ADD: OR_MSTF_I,
rop.VEC_INT_SUB: OR_MSTF_I,
rop.VEC_INT_MUL: OR_MSTF_I,
rop.VEC_INT_AND: OR_MSTF_I,
rop.VEC_INT_OR: OR_MSTF_I,
rop.VEC_INT_XOR: OR_MSTF_I,
rop.VEC_INT_EQ: OR_MSTF_I,
rop.VEC_INT_NE: OR_MSTF_I,
rop.VEC_FLOAT_ADD: OR_MSTF_F,
rop.VEC_FLOAT_SUB: OR_MSTF_F,
rop.VEC_FLOAT_MUL: OR_MSTF_F,
rop.VEC_FLOAT_TRUEDIV: OR_MSTF_F,
rop.VEC_FLOAT_ABS: OpRestrict([TR_ANY_FLOAT]),
rop.VEC_FLOAT_NEG: OpRestrict([TR_ANY_FLOAT]),
rop.VEC_STORE: STORE_RESTRICT,
rop.VEC_LOAD_I: LOAD_RESTRICT,
rop.VEC_LOAD_F: LOAD_RESTRICT,
rop.VEC_GUARD_TRUE: GUARD_RESTRICT,
rop.VEC_GUARD_FALSE: GUARD_RESTRICT,
## irregular
rop.VEC_INT_SIGNEXT: OpRestrict([TR_ANY_INTEGER]),
rop.VEC_CAST_FLOAT_TO_SINGLEFLOAT: OpRestrict([TR_DOUBLE_2]),
# weird but the trace will store single floats in int boxes
rop.VEC_CAST_SINGLEFLOAT_TO_FLOAT: OpRestrict([TR_INT32_2]),
rop.VEC_CAST_FLOAT_TO_INT: OpRestrict([TR_DOUBLE_2]),
rop.VEC_CAST_INT_TO_FLOAT: OpRestrict([TR_INT32_2]),
rop.VEC_FLOAT_EQ: OpRestrict([TR_ANY_FLOAT,TR_ANY_FLOAT]),
rop.VEC_FLOAT_NE: OpRestrict([TR_ANY_FLOAT,TR_ANY_FLOAT]),
rop.VEC_INT_IS_TRUE: OpRestrict([TR_ANY_INTEGER,TR_ANY_INTEGER]),
}
def get_operation_restriction(self, op):
res = self.TR_MAPPING.get(op.vector, None)
if not res:
failnbail_transformation("could not get OpRestrict for " + str(op))
return res
|
