1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
8 #include "src/ic/ic-state.h"
14 void ICUtility::Clear(Isolate* isolate, Address address,
15 ConstantPoolArray* constant_pool) {
16 IC::Clear(isolate, address, constant_pool);
21 template <class Nexus>
22 void ICUtility::Clear(Isolate* isolate, Code::Kind kind, Code* host,
24 IC::Clear<Nexus>(isolate, kind, host, nexus);
28 // Force instantiation of template instances for vector-based IC clearing.
29 template void ICUtility::Clear<CallICNexus>(Isolate*, Code::Kind, Code*,
33 CallICState::CallICState(ExtraICState extra_ic_state)
34 : argc_(ArgcBits::decode(extra_ic_state)),
35 call_type_(CallTypeBits::decode(extra_ic_state)) {}
38 ExtraICState CallICState::GetExtraICState() const {
39 ExtraICState extra_ic_state =
40 ArgcBits::encode(argc_) | CallTypeBits::encode(call_type_);
41 return extra_ic_state;
45 std::ostream& operator<<(std::ostream& os, const CallICState& s) {
46 return os << "(args(" << s.arg_count() << "), "
47 << (s.call_type() == CallICState::METHOD ? "METHOD" : "FUNCTION")
52 BinaryOpICState::BinaryOpICState(Isolate* isolate, ExtraICState extra_ic_state)
55 static_cast<Token::Value>(FIRST_TOKEN + OpField::decode(extra_ic_state));
56 mode_ = OverwriteModeField::decode(extra_ic_state);
58 Maybe<int>(HasFixedRightArgField::decode(extra_ic_state),
59 1 << FixedRightArgValueField::decode(extra_ic_state));
60 left_kind_ = LeftKindField::decode(extra_ic_state);
61 if (fixed_right_arg_.has_value) {
62 right_kind_ = Smi::IsValid(fixed_right_arg_.value) ? SMI : INT32;
64 right_kind_ = RightKindField::decode(extra_ic_state);
66 result_kind_ = ResultKindField::decode(extra_ic_state);
67 DCHECK_LE(FIRST_TOKEN, op_);
68 DCHECK_LE(op_, LAST_TOKEN);
72 ExtraICState BinaryOpICState::GetExtraICState() const {
73 ExtraICState extra_ic_state =
74 OpField::encode(op_ - FIRST_TOKEN) | OverwriteModeField::encode(mode_) |
75 LeftKindField::encode(left_kind_) |
76 ResultKindField::encode(result_kind_) |
77 HasFixedRightArgField::encode(fixed_right_arg_.has_value);
78 if (fixed_right_arg_.has_value) {
79 extra_ic_state = FixedRightArgValueField::update(
80 extra_ic_state, WhichPowerOf2(fixed_right_arg_.value));
82 extra_ic_state = RightKindField::update(extra_ic_state, right_kind_);
84 return extra_ic_state;
89 void BinaryOpICState::GenerateAheadOfTime(
90 Isolate* isolate, void (*Generate)(Isolate*, const BinaryOpICState&)) {
91 // TODO(olivf) We should investigate why adding stubs to the snapshot is so
92 // expensive at runtime. When solved we should be able to add most binops to
93 // the snapshot instead of hand-picking them.
94 // Generated list of commonly used stubs
95 #define GENERATE(op, left_kind, right_kind, result_kind, mode) \
97 BinaryOpICState state(isolate, op, mode); \
98 state.left_kind_ = left_kind; \
99 state.fixed_right_arg_.has_value = false; \
100 state.right_kind_ = right_kind; \
101 state.result_kind_ = result_kind; \
102 Generate(isolate, state); \
104 GENERATE(Token::ADD, INT32, INT32, INT32, NO_OVERWRITE);
105 GENERATE(Token::ADD, INT32, INT32, INT32, OVERWRITE_LEFT);
106 GENERATE(Token::ADD, INT32, INT32, NUMBER, NO_OVERWRITE);
107 GENERATE(Token::ADD, INT32, INT32, NUMBER, OVERWRITE_LEFT);
108 GENERATE(Token::ADD, INT32, NUMBER, NUMBER, NO_OVERWRITE);
109 GENERATE(Token::ADD, INT32, NUMBER, NUMBER, OVERWRITE_LEFT);
110 GENERATE(Token::ADD, INT32, NUMBER, NUMBER, OVERWRITE_RIGHT);
111 GENERATE(Token::ADD, INT32, SMI, INT32, NO_OVERWRITE);
112 GENERATE(Token::ADD, INT32, SMI, INT32, OVERWRITE_LEFT);
113 GENERATE(Token::ADD, INT32, SMI, INT32, OVERWRITE_RIGHT);
114 GENERATE(Token::ADD, NUMBER, INT32, NUMBER, NO_OVERWRITE);
115 GENERATE(Token::ADD, NUMBER, INT32, NUMBER, OVERWRITE_LEFT);
116 GENERATE(Token::ADD, NUMBER, INT32, NUMBER, OVERWRITE_RIGHT);
117 GENERATE(Token::ADD, NUMBER, NUMBER, NUMBER, NO_OVERWRITE);
118 GENERATE(Token::ADD, NUMBER, NUMBER, NUMBER, OVERWRITE_LEFT);
119 GENERATE(Token::ADD, NUMBER, NUMBER, NUMBER, OVERWRITE_RIGHT);
120 GENERATE(Token::ADD, NUMBER, SMI, NUMBER, NO_OVERWRITE);
121 GENERATE(Token::ADD, NUMBER, SMI, NUMBER, OVERWRITE_LEFT);
122 GENERATE(Token::ADD, NUMBER, SMI, NUMBER, OVERWRITE_RIGHT);
123 GENERATE(Token::ADD, SMI, INT32, INT32, NO_OVERWRITE);
124 GENERATE(Token::ADD, SMI, INT32, INT32, OVERWRITE_LEFT);
125 GENERATE(Token::ADD, SMI, INT32, NUMBER, NO_OVERWRITE);
126 GENERATE(Token::ADD, SMI, NUMBER, NUMBER, NO_OVERWRITE);
127 GENERATE(Token::ADD, SMI, NUMBER, NUMBER, OVERWRITE_LEFT);
128 GENERATE(Token::ADD, SMI, NUMBER, NUMBER, OVERWRITE_RIGHT);
129 GENERATE(Token::ADD, SMI, SMI, INT32, OVERWRITE_LEFT);
130 GENERATE(Token::ADD, SMI, SMI, SMI, OVERWRITE_RIGHT);
131 GENERATE(Token::BIT_AND, INT32, INT32, INT32, NO_OVERWRITE);
132 GENERATE(Token::BIT_AND, INT32, INT32, INT32, OVERWRITE_LEFT);
133 GENERATE(Token::BIT_AND, INT32, INT32, INT32, OVERWRITE_RIGHT);
134 GENERATE(Token::BIT_AND, INT32, INT32, SMI, NO_OVERWRITE);
135 GENERATE(Token::BIT_AND, INT32, INT32, SMI, OVERWRITE_RIGHT);
136 GENERATE(Token::BIT_AND, INT32, SMI, INT32, NO_OVERWRITE);
137 GENERATE(Token::BIT_AND, INT32, SMI, INT32, OVERWRITE_RIGHT);
138 GENERATE(Token::BIT_AND, INT32, SMI, SMI, NO_OVERWRITE);
139 GENERATE(Token::BIT_AND, INT32, SMI, SMI, OVERWRITE_LEFT);
140 GENERATE(Token::BIT_AND, INT32, SMI, SMI, OVERWRITE_RIGHT);
141 GENERATE(Token::BIT_AND, NUMBER, INT32, INT32, OVERWRITE_RIGHT);
142 GENERATE(Token::BIT_AND, NUMBER, SMI, SMI, NO_OVERWRITE);
143 GENERATE(Token::BIT_AND, NUMBER, SMI, SMI, OVERWRITE_RIGHT);
144 GENERATE(Token::BIT_AND, SMI, INT32, INT32, NO_OVERWRITE);
145 GENERATE(Token::BIT_AND, SMI, INT32, SMI, OVERWRITE_RIGHT);
146 GENERATE(Token::BIT_AND, SMI, NUMBER, SMI, OVERWRITE_RIGHT);
147 GENERATE(Token::BIT_AND, SMI, SMI, SMI, NO_OVERWRITE);
148 GENERATE(Token::BIT_AND, SMI, SMI, SMI, OVERWRITE_LEFT);
149 GENERATE(Token::BIT_AND, SMI, SMI, SMI, OVERWRITE_RIGHT);
150 GENERATE(Token::BIT_OR, INT32, INT32, INT32, OVERWRITE_LEFT);
151 GENERATE(Token::BIT_OR, INT32, INT32, INT32, OVERWRITE_RIGHT);
152 GENERATE(Token::BIT_OR, INT32, INT32, SMI, OVERWRITE_LEFT);
153 GENERATE(Token::BIT_OR, INT32, SMI, INT32, NO_OVERWRITE);
154 GENERATE(Token::BIT_OR, INT32, SMI, INT32, OVERWRITE_LEFT);
155 GENERATE(Token::BIT_OR, INT32, SMI, INT32, OVERWRITE_RIGHT);
156 GENERATE(Token::BIT_OR, INT32, SMI, SMI, NO_OVERWRITE);
157 GENERATE(Token::BIT_OR, INT32, SMI, SMI, OVERWRITE_RIGHT);
158 GENERATE(Token::BIT_OR, NUMBER, SMI, INT32, NO_OVERWRITE);
159 GENERATE(Token::BIT_OR, NUMBER, SMI, INT32, OVERWRITE_LEFT);
160 GENERATE(Token::BIT_OR, NUMBER, SMI, INT32, OVERWRITE_RIGHT);
161 GENERATE(Token::BIT_OR, NUMBER, SMI, SMI, NO_OVERWRITE);
162 GENERATE(Token::BIT_OR, NUMBER, SMI, SMI, OVERWRITE_LEFT);
163 GENERATE(Token::BIT_OR, SMI, INT32, INT32, OVERWRITE_LEFT);
164 GENERATE(Token::BIT_OR, SMI, INT32, INT32, OVERWRITE_RIGHT);
165 GENERATE(Token::BIT_OR, SMI, INT32, SMI, OVERWRITE_RIGHT);
166 GENERATE(Token::BIT_OR, SMI, SMI, SMI, OVERWRITE_LEFT);
167 GENERATE(Token::BIT_OR, SMI, SMI, SMI, OVERWRITE_RIGHT);
168 GENERATE(Token::BIT_XOR, INT32, INT32, INT32, NO_OVERWRITE);
169 GENERATE(Token::BIT_XOR, INT32, INT32, INT32, OVERWRITE_LEFT);
170 GENERATE(Token::BIT_XOR, INT32, INT32, INT32, OVERWRITE_RIGHT);
171 GENERATE(Token::BIT_XOR, INT32, INT32, SMI, NO_OVERWRITE);
172 GENERATE(Token::BIT_XOR, INT32, INT32, SMI, OVERWRITE_LEFT);
173 GENERATE(Token::BIT_XOR, INT32, NUMBER, SMI, NO_OVERWRITE);
174 GENERATE(Token::BIT_XOR, INT32, SMI, INT32, NO_OVERWRITE);
175 GENERATE(Token::BIT_XOR, INT32, SMI, INT32, OVERWRITE_LEFT);
176 GENERATE(Token::BIT_XOR, INT32, SMI, INT32, OVERWRITE_RIGHT);
177 GENERATE(Token::BIT_XOR, NUMBER, INT32, INT32, NO_OVERWRITE);
178 GENERATE(Token::BIT_XOR, NUMBER, SMI, INT32, NO_OVERWRITE);
179 GENERATE(Token::BIT_XOR, NUMBER, SMI, SMI, NO_OVERWRITE);
180 GENERATE(Token::BIT_XOR, SMI, INT32, INT32, NO_OVERWRITE);
181 GENERATE(Token::BIT_XOR, SMI, INT32, INT32, OVERWRITE_LEFT);
182 GENERATE(Token::BIT_XOR, SMI, INT32, SMI, OVERWRITE_LEFT);
183 GENERATE(Token::BIT_XOR, SMI, SMI, SMI, NO_OVERWRITE);
184 GENERATE(Token::BIT_XOR, SMI, SMI, SMI, OVERWRITE_LEFT);
185 GENERATE(Token::BIT_XOR, SMI, SMI, SMI, OVERWRITE_RIGHT);
186 GENERATE(Token::DIV, INT32, INT32, INT32, NO_OVERWRITE);
187 GENERATE(Token::DIV, INT32, INT32, NUMBER, NO_OVERWRITE);
188 GENERATE(Token::DIV, INT32, NUMBER, NUMBER, NO_OVERWRITE);
189 GENERATE(Token::DIV, INT32, NUMBER, NUMBER, OVERWRITE_LEFT);
190 GENERATE(Token::DIV, INT32, SMI, INT32, NO_OVERWRITE);
191 GENERATE(Token::DIV, INT32, SMI, NUMBER, NO_OVERWRITE);
192 GENERATE(Token::DIV, NUMBER, INT32, NUMBER, NO_OVERWRITE);
193 GENERATE(Token::DIV, NUMBER, INT32, NUMBER, OVERWRITE_LEFT);
194 GENERATE(Token::DIV, NUMBER, NUMBER, NUMBER, NO_OVERWRITE);
195 GENERATE(Token::DIV, NUMBER, NUMBER, NUMBER, OVERWRITE_LEFT);
196 GENERATE(Token::DIV, NUMBER, NUMBER, NUMBER, OVERWRITE_RIGHT);
197 GENERATE(Token::DIV, NUMBER, SMI, NUMBER, NO_OVERWRITE);
198 GENERATE(Token::DIV, NUMBER, SMI, NUMBER, OVERWRITE_LEFT);
199 GENERATE(Token::DIV, SMI, INT32, INT32, NO_OVERWRITE);
200 GENERATE(Token::DIV, SMI, INT32, NUMBER, NO_OVERWRITE);
201 GENERATE(Token::DIV, SMI, INT32, NUMBER, OVERWRITE_LEFT);
202 GENERATE(Token::DIV, SMI, NUMBER, NUMBER, NO_OVERWRITE);
203 GENERATE(Token::DIV, SMI, NUMBER, NUMBER, OVERWRITE_LEFT);
204 GENERATE(Token::DIV, SMI, NUMBER, NUMBER, OVERWRITE_RIGHT);
205 GENERATE(Token::DIV, SMI, SMI, NUMBER, NO_OVERWRITE);
206 GENERATE(Token::DIV, SMI, SMI, NUMBER, OVERWRITE_LEFT);
207 GENERATE(Token::DIV, SMI, SMI, NUMBER, OVERWRITE_RIGHT);
208 GENERATE(Token::DIV, SMI, SMI, SMI, NO_OVERWRITE);
209 GENERATE(Token::DIV, SMI, SMI, SMI, OVERWRITE_LEFT);
210 GENERATE(Token::DIV, SMI, SMI, SMI, OVERWRITE_RIGHT);
211 GENERATE(Token::MOD, NUMBER, SMI, NUMBER, OVERWRITE_LEFT);
212 GENERATE(Token::MOD, SMI, SMI, SMI, NO_OVERWRITE);
213 GENERATE(Token::MOD, SMI, SMI, SMI, OVERWRITE_LEFT);
214 GENERATE(Token::MUL, INT32, INT32, INT32, NO_OVERWRITE);
215 GENERATE(Token::MUL, INT32, INT32, NUMBER, NO_OVERWRITE);
216 GENERATE(Token::MUL, INT32, NUMBER, NUMBER, NO_OVERWRITE);
217 GENERATE(Token::MUL, INT32, NUMBER, NUMBER, OVERWRITE_LEFT);
218 GENERATE(Token::MUL, INT32, SMI, INT32, NO_OVERWRITE);
219 GENERATE(Token::MUL, INT32, SMI, INT32, OVERWRITE_LEFT);
220 GENERATE(Token::MUL, INT32, SMI, NUMBER, NO_OVERWRITE);
221 GENERATE(Token::MUL, NUMBER, INT32, NUMBER, NO_OVERWRITE);
222 GENERATE(Token::MUL, NUMBER, INT32, NUMBER, OVERWRITE_LEFT);
223 GENERATE(Token::MUL, NUMBER, INT32, NUMBER, OVERWRITE_RIGHT);
224 GENERATE(Token::MUL, NUMBER, NUMBER, NUMBER, NO_OVERWRITE);
225 GENERATE(Token::MUL, NUMBER, NUMBER, NUMBER, OVERWRITE_LEFT);
226 GENERATE(Token::MUL, NUMBER, SMI, NUMBER, NO_OVERWRITE);
227 GENERATE(Token::MUL, NUMBER, SMI, NUMBER, OVERWRITE_LEFT);
228 GENERATE(Token::MUL, NUMBER, SMI, NUMBER, OVERWRITE_RIGHT);
229 GENERATE(Token::MUL, SMI, INT32, INT32, NO_OVERWRITE);
230 GENERATE(Token::MUL, SMI, INT32, INT32, OVERWRITE_LEFT);
231 GENERATE(Token::MUL, SMI, INT32, NUMBER, NO_OVERWRITE);
232 GENERATE(Token::MUL, SMI, NUMBER, NUMBER, NO_OVERWRITE);
233 GENERATE(Token::MUL, SMI, NUMBER, NUMBER, OVERWRITE_LEFT);
234 GENERATE(Token::MUL, SMI, NUMBER, NUMBER, OVERWRITE_RIGHT);
235 GENERATE(Token::MUL, SMI, SMI, INT32, NO_OVERWRITE);
236 GENERATE(Token::MUL, SMI, SMI, NUMBER, NO_OVERWRITE);
237 GENERATE(Token::MUL, SMI, SMI, NUMBER, OVERWRITE_LEFT);
238 GENERATE(Token::MUL, SMI, SMI, SMI, NO_OVERWRITE);
239 GENERATE(Token::MUL, SMI, SMI, SMI, OVERWRITE_LEFT);
240 GENERATE(Token::MUL, SMI, SMI, SMI, OVERWRITE_RIGHT);
241 GENERATE(Token::SAR, INT32, SMI, INT32, OVERWRITE_RIGHT);
242 GENERATE(Token::SAR, INT32, SMI, SMI, NO_OVERWRITE);
243 GENERATE(Token::SAR, INT32, SMI, SMI, OVERWRITE_RIGHT);
244 GENERATE(Token::SAR, NUMBER, SMI, SMI, NO_OVERWRITE);
245 GENERATE(Token::SAR, NUMBER, SMI, SMI, OVERWRITE_RIGHT);
246 GENERATE(Token::SAR, SMI, SMI, SMI, OVERWRITE_LEFT);
247 GENERATE(Token::SAR, SMI, SMI, SMI, OVERWRITE_RIGHT);
248 GENERATE(Token::SHL, INT32, SMI, INT32, NO_OVERWRITE);
249 GENERATE(Token::SHL, INT32, SMI, INT32, OVERWRITE_RIGHT);
250 GENERATE(Token::SHL, INT32, SMI, SMI, NO_OVERWRITE);
251 GENERATE(Token::SHL, INT32, SMI, SMI, OVERWRITE_RIGHT);
252 GENERATE(Token::SHL, NUMBER, SMI, SMI, OVERWRITE_RIGHT);
253 GENERATE(Token::SHL, SMI, SMI, INT32, NO_OVERWRITE);
254 GENERATE(Token::SHL, SMI, SMI, INT32, OVERWRITE_LEFT);
255 GENERATE(Token::SHL, SMI, SMI, INT32, OVERWRITE_RIGHT);
256 GENERATE(Token::SHL, SMI, SMI, SMI, NO_OVERWRITE);
257 GENERATE(Token::SHL, SMI, SMI, SMI, OVERWRITE_LEFT);
258 GENERATE(Token::SHL, SMI, SMI, SMI, OVERWRITE_RIGHT);
259 GENERATE(Token::SHR, INT32, SMI, SMI, NO_OVERWRITE);
260 GENERATE(Token::SHR, INT32, SMI, SMI, OVERWRITE_LEFT);
261 GENERATE(Token::SHR, INT32, SMI, SMI, OVERWRITE_RIGHT);
262 GENERATE(Token::SHR, NUMBER, SMI, SMI, NO_OVERWRITE);
263 GENERATE(Token::SHR, NUMBER, SMI, SMI, OVERWRITE_LEFT);
264 GENERATE(Token::SHR, NUMBER, SMI, INT32, OVERWRITE_RIGHT);
265 GENERATE(Token::SHR, SMI, SMI, SMI, NO_OVERWRITE);
266 GENERATE(Token::SHR, SMI, SMI, SMI, OVERWRITE_LEFT);
267 GENERATE(Token::SHR, SMI, SMI, SMI, OVERWRITE_RIGHT);
268 GENERATE(Token::SUB, INT32, INT32, INT32, NO_OVERWRITE);
269 GENERATE(Token::SUB, INT32, INT32, INT32, OVERWRITE_LEFT);
270 GENERATE(Token::SUB, INT32, NUMBER, NUMBER, NO_OVERWRITE);
271 GENERATE(Token::SUB, INT32, NUMBER, NUMBER, OVERWRITE_RIGHT);
272 GENERATE(Token::SUB, INT32, SMI, INT32, OVERWRITE_LEFT);
273 GENERATE(Token::SUB, INT32, SMI, INT32, OVERWRITE_RIGHT);
274 GENERATE(Token::SUB, NUMBER, INT32, NUMBER, NO_OVERWRITE);
275 GENERATE(Token::SUB, NUMBER, INT32, NUMBER, OVERWRITE_LEFT);
276 GENERATE(Token::SUB, NUMBER, NUMBER, NUMBER, NO_OVERWRITE);
277 GENERATE(Token::SUB, NUMBER, NUMBER, NUMBER, OVERWRITE_LEFT);
278 GENERATE(Token::SUB, NUMBER, NUMBER, NUMBER, OVERWRITE_RIGHT);
279 GENERATE(Token::SUB, NUMBER, SMI, NUMBER, NO_OVERWRITE);
280 GENERATE(Token::SUB, NUMBER, SMI, NUMBER, OVERWRITE_LEFT);
281 GENERATE(Token::SUB, NUMBER, SMI, NUMBER, OVERWRITE_RIGHT);
282 GENERATE(Token::SUB, SMI, INT32, INT32, NO_OVERWRITE);
283 GENERATE(Token::SUB, SMI, NUMBER, NUMBER, NO_OVERWRITE);
284 GENERATE(Token::SUB, SMI, NUMBER, NUMBER, OVERWRITE_LEFT);
285 GENERATE(Token::SUB, SMI, NUMBER, NUMBER, OVERWRITE_RIGHT);
286 GENERATE(Token::SUB, SMI, SMI, SMI, NO_OVERWRITE);
287 GENERATE(Token::SUB, SMI, SMI, SMI, OVERWRITE_LEFT);
288 GENERATE(Token::SUB, SMI, SMI, SMI, OVERWRITE_RIGHT);
290 #define GENERATE(op, left_kind, fixed_right_arg_value, result_kind, mode) \
292 BinaryOpICState state(isolate, op, mode); \
293 state.left_kind_ = left_kind; \
294 state.fixed_right_arg_.has_value = true; \
295 state.fixed_right_arg_.value = fixed_right_arg_value; \
296 state.right_kind_ = SMI; \
297 state.result_kind_ = result_kind; \
298 Generate(isolate, state); \
300 GENERATE(Token::MOD, SMI, 2, SMI, NO_OVERWRITE);
301 GENERATE(Token::MOD, SMI, 4, SMI, NO_OVERWRITE);
302 GENERATE(Token::MOD, SMI, 4, SMI, OVERWRITE_LEFT);
303 GENERATE(Token::MOD, SMI, 8, SMI, NO_OVERWRITE);
304 GENERATE(Token::MOD, SMI, 16, SMI, OVERWRITE_LEFT);
305 GENERATE(Token::MOD, SMI, 32, SMI, NO_OVERWRITE);
306 GENERATE(Token::MOD, SMI, 2048, SMI, NO_OVERWRITE);
311 Type* BinaryOpICState::GetResultType(Zone* zone) const {
312 Kind result_kind = result_kind_;
313 if (HasSideEffects()) {
315 } else if (result_kind == GENERIC && op_ == Token::ADD) {
316 return Type::Union(Type::Number(zone), Type::String(zone), zone);
317 } else if (result_kind == NUMBER && op_ == Token::SHR) {
318 return Type::Unsigned32(zone);
320 DCHECK_NE(GENERIC, result_kind);
321 return KindToType(result_kind, zone);
325 std::ostream& operator<<(std::ostream& os, const BinaryOpICState& s) {
326 os << "(" << Token::Name(s.op_);
327 if (s.mode_ == OVERWRITE_LEFT)
329 else if (s.mode_ == OVERWRITE_RIGHT)
331 if (s.CouldCreateAllocationMementos()) os << "_CreateAllocationMementos";
332 os << ":" << BinaryOpICState::KindToString(s.left_kind_) << "*";
333 if (s.fixed_right_arg_.has_value) {
334 os << s.fixed_right_arg_.value;
336 os << BinaryOpICState::KindToString(s.right_kind_);
338 return os << "->" << BinaryOpICState::KindToString(s.result_kind_) << ")";
342 void BinaryOpICState::Update(Handle<Object> left, Handle<Object> right,
343 Handle<Object> result) {
344 ExtraICState old_extra_ic_state = GetExtraICState();
346 left_kind_ = UpdateKind(left, left_kind_);
347 right_kind_ = UpdateKind(right, right_kind_);
349 int32_t fixed_right_arg_value = 0;
350 bool has_fixed_right_arg =
351 op_ == Token::MOD && right->ToInt32(&fixed_right_arg_value) &&
352 fixed_right_arg_value > 0 &&
353 base::bits::IsPowerOfTwo32(fixed_right_arg_value) &&
354 FixedRightArgValueField::is_valid(WhichPowerOf2(fixed_right_arg_value)) &&
355 (left_kind_ == SMI || left_kind_ == INT32) &&
356 (result_kind_ == NONE || !fixed_right_arg_.has_value);
357 fixed_right_arg_ = Maybe<int32_t>(has_fixed_right_arg, fixed_right_arg_value);
359 result_kind_ = UpdateKind(result, result_kind_);
361 if (!Token::IsTruncatingBinaryOp(op_)) {
362 Kind input_kind = Max(left_kind_, right_kind_);
363 if (result_kind_ < input_kind && input_kind <= NUMBER) {
364 result_kind_ = input_kind;
368 // We don't want to distinguish INT32 and NUMBER for string add (because
369 // NumberToString can't make use of this anyway).
370 if (left_kind_ == STRING && right_kind_ == INT32) {
371 DCHECK_EQ(STRING, result_kind_);
372 DCHECK_EQ(Token::ADD, op_);
373 right_kind_ = NUMBER;
374 } else if (right_kind_ == STRING && left_kind_ == INT32) {
375 DCHECK_EQ(STRING, result_kind_);
376 DCHECK_EQ(Token::ADD, op_);
380 // Reset overwrite mode unless we can actually make use of it, or may be able
381 // to make use of it at some point in the future.
382 if ((mode_ == OVERWRITE_LEFT && left_kind_ > NUMBER) ||
383 (mode_ == OVERWRITE_RIGHT && right_kind_ > NUMBER) ||
384 result_kind_ > NUMBER) {
385 mode_ = NO_OVERWRITE;
388 if (old_extra_ic_state == GetExtraICState()) {
389 // Tagged operations can lead to non-truncating HChanges
390 if (left->IsUndefined() || left->IsBoolean()) {
391 left_kind_ = GENERIC;
393 DCHECK(right->IsUndefined() || right->IsBoolean());
394 right_kind_ = GENERIC;
400 BinaryOpICState::Kind BinaryOpICState::UpdateKind(Handle<Object> object,
402 Kind new_kind = GENERIC;
403 bool is_truncating = Token::IsTruncatingBinaryOp(op());
404 if (object->IsBoolean() && is_truncating) {
405 // Booleans will be automatically truncated by HChange.
407 } else if (object->IsUndefined()) {
408 // Undefined will be automatically truncated by HChange.
409 new_kind = is_truncating ? INT32 : NUMBER;
410 } else if (object->IsSmi()) {
412 } else if (object->IsHeapNumber()) {
413 double value = Handle<HeapNumber>::cast(object)->value();
414 new_kind = IsInt32Double(value) ? INT32 : NUMBER;
415 } else if (object->IsString() && op() == Token::ADD) {
418 if (new_kind == INT32 && SmiValuesAre32Bits()) {
421 if (kind != NONE && ((new_kind <= NUMBER && kind > NUMBER) ||
422 (new_kind > NUMBER && kind <= NUMBER))) {
425 return Max(kind, new_kind);
430 const char* BinaryOpICState::KindToString(Kind kind) {
451 Type* BinaryOpICState::KindToType(Kind kind, Zone* zone) {
454 return Type::None(zone);
456 return Type::SignedSmall(zone);
458 return Type::Signed32(zone);
460 return Type::Number(zone);
462 return Type::String(zone);
464 return Type::Any(zone);
471 const char* CompareICState::GetStateName(State state) {
474 return "UNINITIALIZED";
479 case INTERNALIZED_STRING:
480 return "INTERNALIZED_STRING";
484 return "UNIQUE_NAME";
488 return "KNOWN_OBJECT";
497 Type* CompareICState::StateToType(Zone* zone, State state, Handle<Map> map) {
500 return Type::None(zone);
502 return Type::SignedSmall(zone);
504 return Type::Number(zone);
506 return Type::String(zone);
507 case INTERNALIZED_STRING:
508 return Type::InternalizedString(zone);
510 return Type::UniqueName(zone);
512 return Type::Receiver(zone);
514 return map.is_null() ? Type::Receiver(zone) : Type::Class(map, zone);
516 return Type::Any(zone);
523 CompareICState::State CompareICState::NewInputState(State old_state,
524 Handle<Object> value) {
527 if (value->IsSmi()) return SMI;
528 if (value->IsHeapNumber()) return NUMBER;
529 if (value->IsInternalizedString()) return INTERNALIZED_STRING;
530 if (value->IsString()) return STRING;
531 if (value->IsSymbol()) return UNIQUE_NAME;
532 if (value->IsJSObject()) return OBJECT;
535 if (value->IsSmi()) return SMI;
536 if (value->IsHeapNumber()) return NUMBER;
539 if (value->IsNumber()) return NUMBER;
541 case INTERNALIZED_STRING:
542 if (value->IsInternalizedString()) return INTERNALIZED_STRING;
543 if (value->IsString()) return STRING;
544 if (value->IsSymbol()) return UNIQUE_NAME;
547 if (value->IsString()) return STRING;
550 if (value->IsUniqueName()) return UNIQUE_NAME;
553 if (value->IsJSObject()) return OBJECT;
566 CompareICState::State CompareICState::TargetState(
567 State old_state, State old_left, State old_right, Token::Value op,
568 bool has_inlined_smi_code, Handle<Object> x, Handle<Object> y) {
571 if (x->IsSmi() && y->IsSmi()) return SMI;
572 if (x->IsNumber() && y->IsNumber()) return NUMBER;
573 if (Token::IsOrderedRelationalCompareOp(op)) {
574 // Ordered comparisons treat undefined as NaN, so the
575 // NUMBER stub will do the right thing.
576 if ((x->IsNumber() && y->IsUndefined()) ||
577 (y->IsNumber() && x->IsUndefined())) {
581 if (x->IsInternalizedString() && y->IsInternalizedString()) {
582 // We compare internalized strings as plain ones if we need to determine
583 // the order in a non-equality compare.
584 return Token::IsEqualityOp(op) ? INTERNALIZED_STRING : STRING;
586 if (x->IsString() && y->IsString()) return STRING;
587 if (!Token::IsEqualityOp(op)) return GENERIC;
588 if (x->IsUniqueName() && y->IsUniqueName()) return UNIQUE_NAME;
589 if (x->IsJSObject() && y->IsJSObject()) {
590 if (Handle<JSObject>::cast(x)->map() ==
591 Handle<JSObject>::cast(y)->map()) {
599 return x->IsNumber() && y->IsNumber() ? NUMBER : GENERIC;
600 case INTERNALIZED_STRING:
601 DCHECK(Token::IsEqualityOp(op));
602 if (x->IsString() && y->IsString()) return STRING;
603 if (x->IsUniqueName() && y->IsUniqueName()) return UNIQUE_NAME;
606 // If the failure was due to one side changing from smi to heap number,
607 // then keep the state (if other changed at the same time, we will get
608 // a second miss and then go to generic).
609 if (old_left == SMI && x->IsHeapNumber()) return NUMBER;
610 if (old_right == SMI && y->IsHeapNumber()) return NUMBER;
613 DCHECK(Token::IsEqualityOp(op));
614 if (x->IsJSObject() && y->IsJSObject()) {
625 return GENERIC; // Make the compiler happy.
628 } // namespace v8::internal