Line data Source code
1 : // Copyright 2015 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.
4 :
5 : #ifndef V8_INTERPRETER_BYTECODES_H_
6 : #define V8_INTERPRETER_BYTECODES_H_
7 :
8 : #include <cstdint>
9 : #include <iosfwd>
10 : #include <string>
11 :
12 : #include "src/globals.h"
13 : #include "src/interpreter/bytecode-operands.h"
14 :
15 : // This interface and it's implementation are independent of the
16 : // libv8_base library as they are used by the interpreter and the
17 : // standalone mkpeephole table generator program.
18 :
19 : namespace v8 {
20 : namespace internal {
21 : namespace interpreter {
22 :
23 : // The list of bytecodes which are interpreted by the interpreter.
24 : // Format is V(<bytecode>, <accumulator_use>, <operands>).
25 : #define BYTECODE_LIST(V) \
26 : /* Extended width operands */ \
27 : V(Wide, AccumulatorUse::kNone) \
28 : V(ExtraWide, AccumulatorUse::kNone) \
29 : \
30 : /* Loading the accumulator */ \
31 : V(LdaZero, AccumulatorUse::kWrite) \
32 : V(LdaSmi, AccumulatorUse::kWrite, OperandType::kImm) \
33 : V(LdaUndefined, AccumulatorUse::kWrite) \
34 : V(LdaNull, AccumulatorUse::kWrite) \
35 : V(LdaTheHole, AccumulatorUse::kWrite) \
36 : V(LdaTrue, AccumulatorUse::kWrite) \
37 : V(LdaFalse, AccumulatorUse::kWrite) \
38 : V(LdaConstant, AccumulatorUse::kWrite, OperandType::kIdx) \
39 : \
40 : /* Globals */ \
41 : V(LdaGlobal, AccumulatorUse::kWrite, OperandType::kIdx, OperandType::kIdx) \
42 : V(LdaGlobalInsideTypeof, AccumulatorUse::kWrite, OperandType::kIdx, \
43 : OperandType::kIdx) \
44 : V(StaGlobalSloppy, AccumulatorUse::kRead, OperandType::kIdx, \
45 : OperandType::kIdx) \
46 : V(StaGlobalStrict, AccumulatorUse::kRead, OperandType::kIdx, \
47 : OperandType::kIdx) \
48 : \
49 : /* Context operations */ \
50 : V(PushContext, AccumulatorUse::kRead, OperandType::kRegOut) \
51 : V(PopContext, AccumulatorUse::kNone, OperandType::kReg) \
52 : V(LdaContextSlot, AccumulatorUse::kWrite, OperandType::kReg, \
53 : OperandType::kIdx, OperandType::kUImm) \
54 : V(LdaImmutableContextSlot, AccumulatorUse::kWrite, OperandType::kReg, \
55 : OperandType::kIdx, OperandType::kUImm) \
56 : V(LdaCurrentContextSlot, AccumulatorUse::kWrite, OperandType::kIdx) \
57 : V(LdaImmutableCurrentContextSlot, AccumulatorUse::kWrite, OperandType::kIdx) \
58 : V(StaContextSlot, AccumulatorUse::kRead, OperandType::kReg, \
59 : OperandType::kIdx, OperandType::kUImm) \
60 : V(StaCurrentContextSlot, AccumulatorUse::kRead, OperandType::kIdx) \
61 : \
62 : /* Load-Store lookup slots */ \
63 : V(LdaLookupSlot, AccumulatorUse::kWrite, OperandType::kIdx) \
64 : V(LdaLookupContextSlot, AccumulatorUse::kWrite, OperandType::kIdx, \
65 : OperandType::kIdx, OperandType::kUImm) \
66 : V(LdaLookupGlobalSlot, AccumulatorUse::kWrite, OperandType::kIdx, \
67 : OperandType::kIdx, OperandType::kUImm) \
68 : V(LdaLookupSlotInsideTypeof, AccumulatorUse::kWrite, OperandType::kIdx) \
69 : V(LdaLookupContextSlotInsideTypeof, AccumulatorUse::kWrite, \
70 : OperandType::kIdx, OperandType::kIdx, OperandType::kUImm) \
71 : V(LdaLookupGlobalSlotInsideTypeof, AccumulatorUse::kWrite, \
72 : OperandType::kIdx, OperandType::kIdx, OperandType::kUImm) \
73 : V(StaLookupSlotSloppy, AccumulatorUse::kReadWrite, OperandType::kIdx) \
74 : V(StaLookupSlotStrict, AccumulatorUse::kReadWrite, OperandType::kIdx) \
75 : \
76 : /* Register-accumulator transfers */ \
77 : V(Ldar, AccumulatorUse::kWrite, OperandType::kReg) \
78 : V(Star, AccumulatorUse::kRead, OperandType::kRegOut) \
79 : \
80 : /* Register-register transfers */ \
81 : V(Mov, AccumulatorUse::kNone, OperandType::kReg, OperandType::kRegOut) \
82 : \
83 : /* Property loads (LoadIC) operations */ \
84 : V(LdaNamedProperty, AccumulatorUse::kWrite, OperandType::kReg, \
85 : OperandType::kIdx, OperandType::kIdx) \
86 : V(LdaKeyedProperty, AccumulatorUse::kReadWrite, OperandType::kReg, \
87 : OperandType::kIdx) \
88 : \
89 : /* Operations on module variables */ \
90 : V(LdaModuleVariable, AccumulatorUse::kWrite, OperandType::kImm, \
91 : OperandType::kUImm) \
92 : V(StaModuleVariable, AccumulatorUse::kRead, OperandType::kImm, \
93 : OperandType::kUImm) \
94 : \
95 : /* Propery stores (StoreIC) operations */ \
96 : V(StaNamedPropertySloppy, AccumulatorUse::kRead, OperandType::kReg, \
97 : OperandType::kIdx, OperandType::kIdx) \
98 : V(StaNamedPropertyStrict, AccumulatorUse::kRead, OperandType::kReg, \
99 : OperandType::kIdx, OperandType::kIdx) \
100 : V(StaNamedOwnProperty, AccumulatorUse::kRead, OperandType::kReg, \
101 : OperandType::kIdx, OperandType::kIdx) \
102 : V(StaKeyedPropertySloppy, AccumulatorUse::kRead, OperandType::kReg, \
103 : OperandType::kReg, OperandType::kIdx) \
104 : V(StaKeyedPropertyStrict, AccumulatorUse::kRead, OperandType::kReg, \
105 : OperandType::kReg, OperandType::kIdx) \
106 : V(StaDataPropertyInLiteral, AccumulatorUse::kRead, OperandType::kReg, \
107 : OperandType::kReg, OperandType::kFlag8, OperandType::kIdx) \
108 : V(CollectTypeProfile, AccumulatorUse::kRead, OperandType::kImm) \
109 : \
110 : /* Binary Operators */ \
111 : V(Add, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx) \
112 : V(Sub, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx) \
113 : V(Mul, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx) \
114 : V(Div, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx) \
115 : V(Mod, AccumulatorUse::kReadWrite, OperandType::kReg, OperandType::kIdx) \
116 : V(BitwiseOr, AccumulatorUse::kReadWrite, OperandType::kReg, \
117 : OperandType::kIdx) \
118 : V(BitwiseXor, AccumulatorUse::kReadWrite, OperandType::kReg, \
119 : OperandType::kIdx) \
120 : V(BitwiseAnd, AccumulatorUse::kReadWrite, OperandType::kReg, \
121 : OperandType::kIdx) \
122 : V(ShiftLeft, AccumulatorUse::kReadWrite, OperandType::kReg, \
123 : OperandType::kIdx) \
124 : V(ShiftRight, AccumulatorUse::kReadWrite, OperandType::kReg, \
125 : OperandType::kIdx) \
126 : V(ShiftRightLogical, AccumulatorUse::kReadWrite, OperandType::kReg, \
127 : OperandType::kIdx) \
128 : \
129 : /* Binary operators with immediate operands */ \
130 : V(AddSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx) \
131 : V(SubSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx) \
132 : V(MulSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx) \
133 : V(DivSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx) \
134 : V(ModSmi, AccumulatorUse::kReadWrite, OperandType::kImm, OperandType::kIdx) \
135 : V(BitwiseOrSmi, AccumulatorUse::kReadWrite, OperandType::kImm, \
136 : OperandType::kIdx) \
137 : V(BitwiseXorSmi, AccumulatorUse::kReadWrite, OperandType::kImm, \
138 : OperandType::kIdx) \
139 : V(BitwiseAndSmi, AccumulatorUse::kReadWrite, OperandType::kImm, \
140 : OperandType::kIdx) \
141 : V(ShiftLeftSmi, AccumulatorUse::kReadWrite, OperandType::kImm, \
142 : OperandType::kIdx) \
143 : V(ShiftRightSmi, AccumulatorUse::kReadWrite, OperandType::kImm, \
144 : OperandType::kIdx) \
145 : V(ShiftRightLogicalSmi, AccumulatorUse::kReadWrite, OperandType::kImm, \
146 : OperandType::kIdx) \
147 : \
148 : /* Unary Operators */ \
149 : V(Inc, AccumulatorUse::kReadWrite, OperandType::kIdx) \
150 : V(Dec, AccumulatorUse::kReadWrite, OperandType::kIdx) \
151 : V(ToBooleanLogicalNot, AccumulatorUse::kReadWrite) \
152 : V(LogicalNot, AccumulatorUse::kReadWrite) \
153 : V(TypeOf, AccumulatorUse::kReadWrite) \
154 : V(DeletePropertyStrict, AccumulatorUse::kReadWrite, OperandType::kReg) \
155 : V(DeletePropertySloppy, AccumulatorUse::kReadWrite, OperandType::kReg) \
156 : \
157 : /* GetSuperConstructor operator */ \
158 : V(GetSuperConstructor, AccumulatorUse::kRead, OperandType::kRegOut) \
159 : \
160 : /* Call operations */ \
161 : V(CallAnyReceiver, AccumulatorUse::kWrite, OperandType::kReg, \
162 : OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx) \
163 : V(CallProperty, AccumulatorUse::kWrite, OperandType::kReg, \
164 : OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx) \
165 : V(CallProperty0, AccumulatorUse::kWrite, OperandType::kReg, \
166 : OperandType::kReg, OperandType::kIdx) \
167 : V(CallProperty1, AccumulatorUse::kWrite, OperandType::kReg, \
168 : OperandType::kReg, OperandType::kReg, OperandType::kIdx) \
169 : V(CallProperty2, AccumulatorUse::kWrite, OperandType::kReg, \
170 : OperandType::kReg, OperandType::kReg, OperandType::kReg, \
171 : OperandType::kIdx) \
172 : V(CallUndefinedReceiver, AccumulatorUse::kWrite, OperandType::kReg, \
173 : OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx) \
174 : V(CallUndefinedReceiver0, AccumulatorUse::kWrite, OperandType::kReg, \
175 : OperandType::kIdx) \
176 : V(CallUndefinedReceiver1, AccumulatorUse::kWrite, OperandType::kReg, \
177 : OperandType::kReg, OperandType::kIdx) \
178 : V(CallUndefinedReceiver2, AccumulatorUse::kWrite, OperandType::kReg, \
179 : OperandType::kReg, OperandType::kReg, OperandType::kIdx) \
180 : V(CallWithSpread, AccumulatorUse::kWrite, OperandType::kReg, \
181 : OperandType::kRegList, OperandType::kRegCount) \
182 : V(TailCall, AccumulatorUse::kWrite, OperandType::kReg, \
183 : OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx) \
184 : V(CallRuntime, AccumulatorUse::kWrite, OperandType::kRuntimeId, \
185 : OperandType::kRegList, OperandType::kRegCount) \
186 : V(CallRuntimeForPair, AccumulatorUse::kNone, OperandType::kRuntimeId, \
187 : OperandType::kRegList, OperandType::kRegCount, OperandType::kRegOutPair) \
188 : V(CallJSRuntime, AccumulatorUse::kWrite, OperandType::kIdx, \
189 : OperandType::kRegList, OperandType::kRegCount) \
190 : \
191 : /* Intrinsics */ \
192 : V(InvokeIntrinsic, AccumulatorUse::kWrite, OperandType::kIntrinsicId, \
193 : OperandType::kRegList, OperandType::kRegCount) \
194 : \
195 : /* Construct operators */ \
196 : V(Construct, AccumulatorUse::kReadWrite, OperandType::kReg, \
197 : OperandType::kRegList, OperandType::kRegCount, OperandType::kIdx) \
198 : V(ConstructWithSpread, AccumulatorUse::kReadWrite, OperandType::kReg, \
199 : OperandType::kRegList, OperandType::kRegCount) \
200 : \
201 : /* Test Operators */ \
202 : V(TestEqual, AccumulatorUse::kReadWrite, OperandType::kReg, \
203 : OperandType::kIdx) \
204 : V(TestEqualStrict, AccumulatorUse::kReadWrite, OperandType::kReg, \
205 : OperandType::kIdx) \
206 : V(TestLessThan, AccumulatorUse::kReadWrite, OperandType::kReg, \
207 : OperandType::kIdx) \
208 : V(TestGreaterThan, AccumulatorUse::kReadWrite, OperandType::kReg, \
209 : OperandType::kIdx) \
210 : V(TestLessThanOrEqual, AccumulatorUse::kReadWrite, OperandType::kReg, \
211 : OperandType::kIdx) \
212 : V(TestGreaterThanOrEqual, AccumulatorUse::kReadWrite, OperandType::kReg, \
213 : OperandType::kIdx) \
214 : V(TestEqualStrictNoFeedback, AccumulatorUse::kReadWrite, OperandType::kReg) \
215 : V(TestInstanceOf, AccumulatorUse::kReadWrite, OperandType::kReg) \
216 : V(TestIn, AccumulatorUse::kReadWrite, OperandType::kReg) \
217 : V(TestUndetectable, AccumulatorUse::kReadWrite) \
218 : V(TestNull, AccumulatorUse::kReadWrite) \
219 : V(TestUndefined, AccumulatorUse::kReadWrite) \
220 : V(TestTypeOf, AccumulatorUse::kReadWrite, OperandType::kFlag8) \
221 : \
222 : /* Cast operators */ \
223 : V(ToName, AccumulatorUse::kRead, OperandType::kRegOut) \
224 : V(ToNumber, AccumulatorUse::kRead, OperandType::kRegOut, OperandType::kIdx) \
225 : V(ToObject, AccumulatorUse::kRead, OperandType::kRegOut) \
226 : \
227 : /* Literals */ \
228 : V(CreateRegExpLiteral, AccumulatorUse::kWrite, OperandType::kIdx, \
229 : OperandType::kIdx, OperandType::kFlag8) \
230 : V(CreateArrayLiteral, AccumulatorUse::kWrite, OperandType::kIdx, \
231 : OperandType::kIdx, OperandType::kFlag8) \
232 : V(CreateObjectLiteral, AccumulatorUse::kNone, OperandType::kIdx, \
233 : OperandType::kIdx, OperandType::kFlag8, OperandType::kRegOut) \
234 : \
235 : /* Closure allocation */ \
236 : V(CreateClosure, AccumulatorUse::kWrite, OperandType::kIdx, \
237 : OperandType::kIdx, OperandType::kFlag8) \
238 : \
239 : /* Context allocation */ \
240 : V(CreateBlockContext, AccumulatorUse::kReadWrite, OperandType::kIdx) \
241 : V(CreateCatchContext, AccumulatorUse::kReadWrite, OperandType::kReg, \
242 : OperandType::kIdx, OperandType::kIdx) \
243 : V(CreateFunctionContext, AccumulatorUse::kWrite, OperandType::kUImm) \
244 : V(CreateEvalContext, AccumulatorUse::kWrite, OperandType::kUImm) \
245 : V(CreateWithContext, AccumulatorUse::kReadWrite, OperandType::kReg, \
246 : OperandType::kIdx) \
247 : \
248 : /* Arguments allocation */ \
249 : V(CreateMappedArguments, AccumulatorUse::kWrite) \
250 : V(CreateUnmappedArguments, AccumulatorUse::kWrite) \
251 : V(CreateRestParameter, AccumulatorUse::kWrite) \
252 : \
253 : /* Control Flow -- carefully ordered for efficient checks */ \
254 : /* - [Unconditional jumps] */ \
255 : V(JumpLoop, AccumulatorUse::kNone, OperandType::kUImm, OperandType::kImm) \
256 : /* - [Forward jumps] */ \
257 : V(Jump, AccumulatorUse::kNone, OperandType::kUImm) \
258 : /* - [Start constant jumps] */ \
259 : V(JumpConstant, AccumulatorUse::kNone, OperandType::kIdx) \
260 : /* - [Conditional jumps] */ \
261 : /* - [Conditional constant jumps] */ \
262 : V(JumpIfNullConstant, AccumulatorUse::kRead, OperandType::kIdx) \
263 : V(JumpIfNotNullConstant, AccumulatorUse::kRead, OperandType::kIdx) \
264 : V(JumpIfUndefinedConstant, AccumulatorUse::kRead, OperandType::kIdx) \
265 : V(JumpIfNotUndefinedConstant, AccumulatorUse::kRead, OperandType::kIdx) \
266 : V(JumpIfTrueConstant, AccumulatorUse::kRead, OperandType::kIdx) \
267 : V(JumpIfFalseConstant, AccumulatorUse::kRead, OperandType::kIdx) \
268 : V(JumpIfJSReceiverConstant, AccumulatorUse::kRead, OperandType::kIdx) \
269 : V(JumpIfNotHoleConstant, AccumulatorUse::kRead, OperandType::kIdx) \
270 : /* - [Start ToBoolean jumps] */ \
271 : V(JumpIfToBooleanTrueConstant, AccumulatorUse::kRead, OperandType::kIdx) \
272 : V(JumpIfToBooleanFalseConstant, AccumulatorUse::kRead, OperandType::kIdx) \
273 : /* - [End constant jumps] */ \
274 : /* - [Conditional immediate jumps] */ \
275 : V(JumpIfToBooleanTrue, AccumulatorUse::kRead, OperandType::kUImm) \
276 : V(JumpIfToBooleanFalse, AccumulatorUse::kRead, OperandType::kUImm) \
277 : /* - [End ToBoolean jumps] */ \
278 : V(JumpIfTrue, AccumulatorUse::kRead, OperandType::kUImm) \
279 : V(JumpIfFalse, AccumulatorUse::kRead, OperandType::kUImm) \
280 : V(JumpIfNull, AccumulatorUse::kRead, OperandType::kUImm) \
281 : V(JumpIfNotNull, AccumulatorUse::kRead, OperandType::kUImm) \
282 : V(JumpIfUndefined, AccumulatorUse::kRead, OperandType::kUImm) \
283 : V(JumpIfNotUndefined, AccumulatorUse::kRead, OperandType::kUImm) \
284 : V(JumpIfJSReceiver, AccumulatorUse::kRead, OperandType::kUImm) \
285 : V(JumpIfNotHole, AccumulatorUse::kRead, OperandType::kUImm) \
286 : \
287 : /* Complex flow control For..in */ \
288 : V(ForInPrepare, AccumulatorUse::kNone, OperandType::kReg, \
289 : OperandType::kRegOutTriple) \
290 : V(ForInContinue, AccumulatorUse::kWrite, OperandType::kReg, \
291 : OperandType::kReg) \
292 : V(ForInNext, AccumulatorUse::kWrite, OperandType::kReg, OperandType::kReg, \
293 : OperandType::kRegPair, OperandType::kIdx) \
294 : V(ForInStep, AccumulatorUse::kWrite, OperandType::kReg) \
295 : \
296 : /* Perform a stack guard check */ \
297 : V(StackCheck, AccumulatorUse::kNone) \
298 : \
299 : /* Update the pending message */ \
300 : V(SetPendingMessage, AccumulatorUse::kReadWrite) \
301 : \
302 : /* Non-local flow control */ \
303 : V(Throw, AccumulatorUse::kRead) \
304 : V(ReThrow, AccumulatorUse::kRead) \
305 : V(Return, AccumulatorUse::kRead) \
306 : \
307 : /* Generators */ \
308 : V(SuspendGenerator, AccumulatorUse::kRead, OperandType::kReg, \
309 : OperandType::kFlag8) \
310 : V(ResumeGenerator, AccumulatorUse::kWrite, OperandType::kReg) \
311 : \
312 : /* Debugger */ \
313 : V(Debugger, AccumulatorUse::kNone) \
314 : \
315 : /* Debug Breakpoints - one for each possible size of unscaled bytecodes */ \
316 : /* and one for each operand widening prefix bytecode */ \
317 : V(DebugBreak0, AccumulatorUse::kRead) \
318 : V(DebugBreak1, AccumulatorUse::kRead, OperandType::kReg) \
319 : V(DebugBreak2, AccumulatorUse::kRead, OperandType::kReg, OperandType::kReg) \
320 : V(DebugBreak3, AccumulatorUse::kRead, OperandType::kReg, OperandType::kReg, \
321 : OperandType::kReg) \
322 : V(DebugBreak4, AccumulatorUse::kRead, OperandType::kReg, OperandType::kReg, \
323 : OperandType::kReg, OperandType::kReg) \
324 : V(DebugBreak5, AccumulatorUse::kRead, OperandType::kRuntimeId, \
325 : OperandType::kReg, OperandType::kReg) \
326 : V(DebugBreak6, AccumulatorUse::kRead, OperandType::kRuntimeId, \
327 : OperandType::kReg, OperandType::kReg, OperandType::kReg) \
328 : V(DebugBreakWide, AccumulatorUse::kRead) \
329 : V(DebugBreakExtraWide, AccumulatorUse::kRead) \
330 : \
331 : /* Illegal bytecode (terminates execution) */ \
332 : V(Illegal, AccumulatorUse::kNone) \
333 : \
334 : /* No operation (used to maintain source positions for peephole */ \
335 : /* eliminated bytecodes). */ \
336 : V(Nop, AccumulatorUse::kNone)
337 :
338 : // List of debug break bytecodes.
339 : #define DEBUG_BREAK_PLAIN_BYTECODE_LIST(V) \
340 : V(DebugBreak0) \
341 : V(DebugBreak1) \
342 : V(DebugBreak2) \
343 : V(DebugBreak3) \
344 : V(DebugBreak4) \
345 : V(DebugBreak5) \
346 : V(DebugBreak6)
347 :
348 : #define DEBUG_BREAK_PREFIX_BYTECODE_LIST(V) \
349 : V(DebugBreakWide) \
350 : V(DebugBreakExtraWide)
351 :
352 : #define DEBUG_BREAK_BYTECODE_LIST(V) \
353 : DEBUG_BREAK_PLAIN_BYTECODE_LIST(V) \
354 : DEBUG_BREAK_PREFIX_BYTECODE_LIST(V)
355 :
356 : // Lists of jump bytecodes.
357 :
358 : #define JUMP_UNCONDITIONAL_IMMEDIATE_BYTECODE_LIST(V) \
359 : V(JumpLoop) \
360 : V(Jump)
361 :
362 : #define JUMP_UNCONDITIONAL_CONSTANT_BYTECODE_LIST(V) V(JumpConstant)
363 :
364 : #define JUMP_TOBOOLEAN_CONDITIONAL_IMMEDIATE_BYTECODE_LIST(V) \
365 : V(JumpIfToBooleanTrue) \
366 : V(JumpIfToBooleanFalse)
367 :
368 : #define JUMP_TOBOOLEAN_CONDITIONAL_CONSTANT_BYTECODE_LIST(V) \
369 : V(JumpIfToBooleanTrueConstant) \
370 : V(JumpIfToBooleanFalseConstant)
371 :
372 : #define JUMP_CONDITIONAL_IMMEDIATE_BYTECODE_LIST(V) \
373 : JUMP_TOBOOLEAN_CONDITIONAL_IMMEDIATE_BYTECODE_LIST(V) \
374 : V(JumpIfTrue) \
375 : V(JumpIfFalse) \
376 : V(JumpIfNull) \
377 : V(JumpIfNotNull) \
378 : V(JumpIfUndefined) \
379 : V(JumpIfNotUndefined) \
380 : V(JumpIfJSReceiver) \
381 : V(JumpIfNotHole)
382 :
383 : #define JUMP_CONDITIONAL_CONSTANT_BYTECODE_LIST(V) \
384 : JUMP_TOBOOLEAN_CONDITIONAL_CONSTANT_BYTECODE_LIST(V) \
385 : V(JumpIfNullConstant) \
386 : V(JumpIfNotNullConstant) \
387 : V(JumpIfUndefinedConstant) \
388 : V(JumpIfNotUndefinedConstant) \
389 : V(JumpIfTrueConstant) \
390 : V(JumpIfFalseConstant) \
391 : V(JumpIfJSReceiverConstant) \
392 : V(JumpIfNotHoleConstant)
393 :
394 : #define JUMP_CONSTANT_BYTECODE_LIST(V) \
395 : JUMP_UNCONDITIONAL_CONSTANT_BYTECODE_LIST(V) \
396 : JUMP_CONDITIONAL_CONSTANT_BYTECODE_LIST(V)
397 :
398 : #define JUMP_IMMEDIATE_BYTECODE_LIST(V) \
399 : JUMP_UNCONDITIONAL_IMMEDIATE_BYTECODE_LIST(V) \
400 : JUMP_CONDITIONAL_IMMEDIATE_BYTECODE_LIST(V)
401 :
402 : #define JUMP_TO_BOOLEAN_BYTECODE_LIST(V) \
403 : JUMP_TOBOOLEAN_CONDITIONAL_IMMEDIATE_BYTECODE_LIST(V) \
404 : JUMP_TOBOOLEAN_CONDITIONAL_CONSTANT_BYTECODE_LIST(V)
405 :
406 : #define JUMP_UNCONDITIONAL_BYTECODE_LIST(V) \
407 : JUMP_UNCONDITIONAL_IMMEDIATE_BYTECODE_LIST(V) \
408 : JUMP_UNCONDITIONAL_CONSTANT_BYTECODE_LIST(V)
409 :
410 : #define JUMP_CONDITIONAL_BYTECODE_LIST(V) \
411 : JUMP_CONDITIONAL_IMMEDIATE_BYTECODE_LIST(V) \
412 : JUMP_CONDITIONAL_CONSTANT_BYTECODE_LIST(V)
413 :
414 : #define JUMP_FORWARD_BYTECODE_LIST(V) \
415 : V(Jump) \
416 : V(JumpConstant) \
417 : JUMP_CONDITIONAL_BYTECODE_LIST(V)
418 :
419 : #define JUMP_BYTECODE_LIST(V) \
420 : JUMP_FORWARD_BYTECODE_LIST(V) \
421 : V(JumpLoop)
422 :
423 : // Enumeration of interpreter bytecodes.
424 : enum class Bytecode : uint8_t {
425 : #define DECLARE_BYTECODE(Name, ...) k##Name,
426 : BYTECODE_LIST(DECLARE_BYTECODE)
427 : #undef DECLARE_BYTECODE
428 : #define COUNT_BYTECODE(x, ...) +1
429 : // The COUNT_BYTECODE macro will turn this into kLast = -1 +1 +1... which will
430 : // evaluate to the same value as the last real bytecode.
431 : kLast = -1 BYTECODE_LIST(COUNT_BYTECODE)
432 : #undef COUNT_BYTECODE
433 : };
434 :
435 : class V8_EXPORT_PRIVATE Bytecodes final {
436 : public:
437 : // The maximum number of operands a bytecode may have.
438 : static const int kMaxOperands = 5;
439 :
440 : // Returns string representation of |bytecode|.
441 : static const char* ToString(Bytecode bytecode);
442 :
443 : // Returns string representation of |bytecode|.
444 : static std::string ToString(Bytecode bytecode, OperandScale operand_scale);
445 :
446 : // Returns byte value of bytecode.
447 : static uint8_t ToByte(Bytecode bytecode) {
448 : DCHECK_LE(bytecode, Bytecode::kLast);
449 : return static_cast<uint8_t>(bytecode);
450 : }
451 :
452 : // Returns bytecode for |value|.
453 65553 : static Bytecode FromByte(uint8_t value) {
454 : Bytecode bytecode = static_cast<Bytecode>(value);
455 : DCHECK(bytecode <= Bytecode::kLast);
456 65553 : return bytecode;
457 : }
458 :
459 : // Returns the prefix bytecode representing an operand scale to be
460 : // applied to a a bytecode.
461 11192124 : static Bytecode OperandScaleToPrefixBytecode(OperandScale operand_scale) {
462 11192124 : switch (operand_scale) {
463 : case OperandScale::kQuadruple:
464 : return Bytecode::kExtraWide;
465 : case OperandScale::kDouble:
466 11009160 : return Bytecode::kWide;
467 : default:
468 0 : UNREACHABLE();
469 : return Bytecode::kIllegal;
470 : }
471 : }
472 :
473 : // Returns true if the operand scale requires a prefix bytecode.
474 : static bool OperandScaleRequiresPrefixBytecode(OperandScale operand_scale) {
475 : return operand_scale != OperandScale::kSingle;
476 : }
477 :
478 : // Returns the scaling applied to scalable operands if bytecode is
479 : // is a scaling prefix.
480 5831353 : static OperandScale PrefixBytecodeToOperandScale(Bytecode bytecode) {
481 5831353 : switch (bytecode) {
482 : case Bytecode::kExtraWide:
483 : case Bytecode::kDebugBreakExtraWide:
484 : return OperandScale::kQuadruple;
485 : case Bytecode::kWide:
486 : case Bytecode::kDebugBreakWide:
487 5742861 : return OperandScale::kDouble;
488 : default:
489 0 : UNREACHABLE();
490 : return OperandScale::kSingle;
491 : }
492 : }
493 :
494 : // Returns how accumulator is used by |bytecode|.
495 : static AccumulatorUse GetAccumulatorUse(Bytecode bytecode) {
496 : DCHECK(bytecode <= Bytecode::kLast);
497 50206774 : return kAccumulatorUse[static_cast<size_t>(bytecode)];
498 : }
499 :
500 : // Returns true if |bytecode| reads the accumulator.
501 : static bool ReadsAccumulator(Bytecode bytecode) {
502 : return BytecodeOperands::ReadsAccumulator(GetAccumulatorUse(bytecode));
503 : }
504 :
505 : // Returns true if |bytecode| writes the accumulator.
506 : static bool WritesAccumulator(Bytecode bytecode) {
507 : return BytecodeOperands::WritesAccumulator(GetAccumulatorUse(bytecode));
508 : }
509 :
510 : // Return true if |bytecode| is an accumulator load without effects,
511 : // e.g. LdaConstant, LdaTrue, Ldar.
512 114616446 : static constexpr bool IsAccumulatorLoadWithoutEffects(Bytecode bytecode) {
513 114616446 : return bytecode == Bytecode::kLdar || bytecode == Bytecode::kLdaZero ||
514 105927412 : bytecode == Bytecode::kLdaSmi || bytecode == Bytecode::kLdaNull ||
515 99260343 : bytecode == Bytecode::kLdaTrue || bytecode == Bytecode::kLdaFalse ||
516 197501358 : bytecode == Bytecode::kLdaUndefined ||
517 98750679 : bytecode == Bytecode::kLdaTheHole ||
518 193859368 : bytecode == Bytecode::kLdaConstant ||
519 96929684 : bytecode == Bytecode::kLdaContextSlot ||
520 92624346 : bytecode == Bytecode::kLdaCurrentContextSlot ||
521 206035160 : bytecode == Bytecode::kLdaImmutableContextSlot ||
522 114616446 : bytecode == Bytecode::kLdaImmutableCurrentContextSlot;
523 : }
524 :
525 : // Returns true if |bytecode| is a compare operation without external effects
526 : // (e.g., Type cooersion).
527 : static constexpr bool IsCompareWithoutEffects(Bytecode bytecode) {
528 : return bytecode == Bytecode::kTestUndetectable ||
529 : bytecode == Bytecode::kTestNull ||
530 23039329 : bytecode == Bytecode::kTestUndefined ||
531 : bytecode == Bytecode::kTestTypeOf;
532 : }
533 :
534 : // Return true if |bytecode| is a register load without effects,
535 : // e.g. Mov, Star.
536 : static constexpr bool IsRegisterLoadWithoutEffects(Bytecode bytecode) {
537 33009306 : return bytecode == Bytecode::kMov || bytecode == Bytecode::kPopContext ||
538 33009306 : bytecode == Bytecode::kPushContext || bytecode == Bytecode::kStar;
539 : }
540 :
541 : // Returns true if the bytecode is a conditional jump taking
542 : // an immediate byte operand (OperandType::kImm).
543 : static constexpr bool IsConditionalJumpImmediate(Bytecode bytecode) {
544 1417527 : return bytecode >= Bytecode::kJumpIfToBooleanTrue &&
545 : bytecode <= Bytecode::kJumpIfNotHole;
546 : }
547 :
548 : // Returns true if the bytecode is a conditional jump taking
549 : // a constant pool entry (OperandType::kIdx).
550 : static constexpr bool IsConditionalJumpConstant(Bytecode bytecode) {
551 : return bytecode >= Bytecode::kJumpIfNullConstant &&
552 : bytecode <= Bytecode::kJumpIfToBooleanFalseConstant;
553 : }
554 :
555 : // Returns true if the bytecode is a conditional jump taking
556 : // any kind of operand.
557 : static constexpr bool IsConditionalJump(Bytecode bytecode) {
558 : return bytecode >= Bytecode::kJumpIfNullConstant &&
559 : bytecode <= Bytecode::kJumpIfNotHole;
560 : }
561 :
562 : // Returns true if the bytecode is an unconditional jump.
563 : static constexpr bool IsUnconditionalJump(Bytecode bytecode) {
564 16059127 : return bytecode >= Bytecode::kJumpLoop &&
565 : bytecode <= Bytecode::kJumpConstant;
566 : }
567 :
568 : // Returns true if the bytecode is a jump or a conditional jump taking
569 : // an immediate byte operand (OperandType::kImm).
570 : static constexpr bool IsJumpImmediate(Bytecode bytecode) {
571 3299458 : return bytecode == Bytecode::kJump || bytecode == Bytecode::kJumpLoop ||
572 : IsConditionalJumpImmediate(bytecode);
573 : }
574 :
575 : // Returns true if the bytecode is a jump or conditional jump taking a
576 : // constant pool entry (OperandType::kIdx).
577 : static constexpr bool IsJumpConstant(Bytecode bytecode) {
578 53366 : return bytecode >= Bytecode::kJumpConstant &&
579 : bytecode <= Bytecode::kJumpIfToBooleanFalseConstant;
580 : }
581 :
582 : // Returns true if the bytecode is a jump that internally coerces the
583 : // accumulator to a boolean.
584 : static constexpr bool IsJumpIfToBoolean(Bytecode bytecode) {
585 1611051 : return bytecode >= Bytecode::kJumpIfToBooleanTrueConstant &&
586 : bytecode <= Bytecode::kJumpIfToBooleanFalse;
587 : }
588 :
589 : // Returns true if the bytecode is a jump or conditional jump taking
590 : // any kind of operand.
591 47514399 : static constexpr bool IsJump(Bytecode bytecode) {
592 70141399 : return bytecode >= Bytecode::kJumpLoop &&
593 47514399 : bytecode <= Bytecode::kJumpIfNotHole;
594 : }
595 :
596 : // Returns true if the bytecode is a forward jump or conditional jump taking
597 : // any kind of operand.
598 : static constexpr bool IsForwardJump(Bytecode bytecode) {
599 16487052 : return bytecode >= Bytecode::kJump && bytecode <= Bytecode::kJumpIfNotHole;
600 : }
601 :
602 : // Returns true if the bytecode is a conditional jump, a jump, or a return.
603 : static constexpr bool IsJumpOrReturn(Bytecode bytecode) {
604 : return bytecode == Bytecode::kReturn || IsJump(bytecode);
605 : }
606 :
607 : // Return true if |bytecode| is a jump without effects,
608 : // e.g. any jump excluding those that include type coercion like
609 : // JumpIfTrueToBoolean.
610 : static constexpr bool IsJumpWithoutEffects(Bytecode bytecode) {
611 24206847 : return IsJump(bytecode) && !IsJumpIfToBoolean(bytecode);
612 : }
613 :
614 : // Returns true if |bytecode| has no effects. These bytecodes only manipulate
615 : // interpreter frame state and will never throw.
616 41893899 : static constexpr bool IsWithoutExternalSideEffects(Bytecode bytecode) {
617 74903205 : return (IsAccumulatorLoadWithoutEffects(bytecode) ||
618 23039329 : IsRegisterLoadWithoutEffects(bytecode) ||
619 87331619 : IsCompareWithoutEffects(bytecode) || bytecode == Bytecode::kNop ||
620 41893894 : IsJumpWithoutEffects(bytecode));
621 : }
622 :
623 : // Returns true if the bytecode is Ldar or Star.
624 : static constexpr bool IsLdarOrStar(Bytecode bytecode) {
625 : return bytecode == Bytecode::kLdar || bytecode == Bytecode::kStar;
626 : }
627 :
628 : // Returns true if the bytecode is a call or a constructor call.
629 63186004 : static constexpr bool IsCallOrConstruct(Bytecode bytecode) {
630 : return bytecode == Bytecode::kCallAnyReceiver ||
631 : bytecode == Bytecode::kCallProperty ||
632 : bytecode == Bytecode::kCallProperty0 ||
633 : bytecode == Bytecode::kCallProperty1 ||
634 : bytecode == Bytecode::kCallProperty2 ||
635 : bytecode == Bytecode::kCallUndefinedReceiver ||
636 : bytecode == Bytecode::kCallUndefinedReceiver0 ||
637 63186004 : bytecode == Bytecode::kCallUndefinedReceiver1 ||
638 63186004 : bytecode == Bytecode::kCallUndefinedReceiver2 ||
639 63186004 : bytecode == Bytecode::kTailCall ||
640 120292320 : bytecode == Bytecode::kConstruct ||
641 60146160 : bytecode == Bytecode::kCallWithSpread ||
642 120173764 : bytecode == Bytecode::kConstructWithSpread ||
643 183259427 : bytecode == Bytecode::kInvokeIntrinsic ||
644 63186004 : bytecode == Bytecode::kCallJSRuntime;
645 : }
646 :
647 : // Returns true if the bytecode is a call to the runtime.
648 : static constexpr bool IsCallRuntime(Bytecode bytecode) {
649 337370 : return bytecode == Bytecode::kCallRuntime ||
650 : bytecode == Bytecode::kCallRuntimeForPair ||
651 337370 : bytecode == Bytecode::kInvokeIntrinsic;
652 : }
653 :
654 : // Returns true if the bytecode is a scaling prefix bytecode.
655 : static constexpr bool IsPrefixScalingBytecode(Bytecode bytecode) {
656 100446178 : return bytecode == Bytecode::kExtraWide || bytecode == Bytecode::kWide ||
657 100446178 : bytecode == Bytecode::kDebugBreakExtraWide ||
658 : bytecode == Bytecode::kDebugBreakWide;
659 : }
660 :
661 : // Returns the number of values which |bytecode| returns.
662 : static constexpr size_t ReturnCount(Bytecode bytecode) {
663 18533 : return bytecode == Bytecode::kReturn ? 1 : 0;
664 : }
665 :
666 : // Returns the number of operands expected by |bytecode|.
667 : static int NumberOfOperands(Bytecode bytecode) {
668 : DCHECK(bytecode <= Bytecode::kLast);
669 32463142 : return kOperandCount[static_cast<size_t>(bytecode)];
670 : }
671 :
672 : // Returns the i-th operand of |bytecode|.
673 : static OperandType GetOperandType(Bytecode bytecode, int i) {
674 : DCHECK_LE(bytecode, Bytecode::kLast);
675 : DCHECK_LT(i, NumberOfOperands(bytecode));
676 : DCHECK_GE(i, 0);
677 27670417 : return GetOperandTypes(bytecode)[i];
678 : }
679 :
680 : // Returns a pointer to an array of operand types terminated in
681 : // OperandType::kNone.
682 : static const OperandType* GetOperandTypes(Bytecode bytecode) {
683 : DCHECK(bytecode <= Bytecode::kLast);
684 46375574 : return kOperandTypes[static_cast<size_t>(bytecode)];
685 : }
686 :
687 3069381 : static bool OperandIsScalableSignedByte(Bytecode bytecode,
688 : int operand_index) {
689 : DCHECK(bytecode <= Bytecode::kLast);
690 3088409 : return kOperandTypeInfos[static_cast<size_t>(bytecode)][operand_index] ==
691 3069381 : OperandTypeInfo::kScalableSignedByte;
692 : }
693 :
694 3069381 : static bool OperandIsScalableUnsignedByte(Bytecode bytecode,
695 : int operand_index) {
696 : DCHECK(bytecode <= Bytecode::kLast);
697 3069381 : return kOperandTypeInfos[static_cast<size_t>(bytecode)][operand_index] ==
698 3069381 : OperandTypeInfo::kScalableUnsignedByte;
699 : }
700 :
701 : static bool OperandIsScalable(Bytecode bytecode, int operand_index) {
702 19028 : return OperandIsScalableSignedByte(bytecode, operand_index) ||
703 : OperandIsScalableUnsignedByte(bytecode, operand_index);
704 : }
705 :
706 : // Returns true if the bytecode has wider operand forms.
707 : static bool IsBytecodeWithScalableOperands(Bytecode bytecode);
708 :
709 : // Returns the size of the i-th operand of |bytecode|.
710 13735049 : static OperandSize GetOperandSize(Bytecode bytecode, int i,
711 : OperandScale operand_scale) {
712 13735049 : CHECK_LT(i, NumberOfOperands(bytecode));
713 13735049 : return GetOperandSizes(bytecode, operand_scale)[i];
714 : }
715 :
716 : // Returns the operand sizes of |bytecode| with scale |operand_scale|.
717 : static const OperandSize* GetOperandSizes(Bytecode bytecode,
718 : OperandScale operand_scale) {
719 : DCHECK(bytecode <= Bytecode::kLast);
720 : DCHECK_GE(operand_scale, OperandScale::kSingle);
721 : DCHECK_LE(operand_scale, OperandScale::kLast);
722 : STATIC_ASSERT(static_cast<int>(OperandScale::kQuadruple) == 4 &&
723 : OperandScale::kLast == OperandScale::kQuadruple);
724 86457651 : int scale_index = static_cast<int>(operand_scale) >> 1;
725 86457651 : return kOperandSizes[static_cast<size_t>(bytecode)][scale_index];
726 : }
727 :
728 : // Returns the offset of the i-th operand of |bytecode| relative to the start
729 : // of the bytecode.
730 : static int GetOperandOffset(Bytecode bytecode, int i,
731 : OperandScale operand_scale);
732 :
733 : // Returns the size of the bytecode including its operands for the
734 : // given |operand_scale|.
735 : static int Size(Bytecode bytecode, OperandScale operand_scale) {
736 : DCHECK(bytecode <= Bytecode::kLast);
737 : STATIC_ASSERT(static_cast<int>(OperandScale::kQuadruple) == 4 &&
738 : OperandScale::kLast == OperandScale::kQuadruple);
739 30164070 : int scale_index = static_cast<int>(operand_scale) >> 1;
740 33054784 : return kBytecodeSizes[static_cast<size_t>(bytecode)][scale_index];
741 : }
742 :
743 : // Returns a debug break bytecode to replace |bytecode|.
744 : static Bytecode GetDebugBreak(Bytecode bytecode);
745 :
746 : // Returns the equivalent jump bytecode without the accumulator coercion.
747 : static Bytecode GetJumpWithoutToBoolean(Bytecode bytecode);
748 :
749 : // Returns true if there is a call in the most-frequently executed path
750 : // through the bytecode's handler.
751 : static bool MakesCallAlongCriticalPath(Bytecode bytecode);
752 :
753 : // Returns the receiver mode of the given call bytecode.
754 : static ConvertReceiverMode GetReceiverMode(Bytecode bytecode) {
755 : DCHECK(IsCallOrConstruct(bytecode));
756 : switch (bytecode) {
757 : case Bytecode::kCallProperty:
758 : case Bytecode::kCallProperty0:
759 : case Bytecode::kCallProperty1:
760 : case Bytecode::kCallProperty2:
761 : return ConvertReceiverMode::kNotNullOrUndefined;
762 : case Bytecode::kCallUndefinedReceiver:
763 : case Bytecode::kCallUndefinedReceiver0:
764 : case Bytecode::kCallUndefinedReceiver1:
765 : case Bytecode::kCallUndefinedReceiver2:
766 : return ConvertReceiverMode::kNullOrUndefined;
767 : case Bytecode::kCallAnyReceiver:
768 : case Bytecode::kTailCall:
769 : case Bytecode::kConstruct:
770 : case Bytecode::kCallWithSpread:
771 : case Bytecode::kConstructWithSpread:
772 : case Bytecode::kInvokeIntrinsic:
773 : case Bytecode::kCallJSRuntime:
774 : return ConvertReceiverMode::kAny;
775 : default:
776 : UNREACHABLE();
777 : return ConvertReceiverMode::kAny;
778 : }
779 : }
780 :
781 : // Returns true if the bytecode is a debug break.
782 : static bool IsDebugBreak(Bytecode bytecode);
783 :
784 : // Returns true if |operand_type| is any type of register operand.
785 : static bool IsRegisterOperandType(OperandType operand_type);
786 :
787 : // Returns true if |operand_type| represents a register used as an input.
788 : static bool IsRegisterInputOperandType(OperandType operand_type);
789 :
790 : // Returns true if |operand_type| represents a register used as an output.
791 : static bool IsRegisterOutputOperandType(OperandType operand_type);
792 :
793 : // Returns true if the handler for |bytecode| should look ahead and inline a
794 : // dispatch to a Star bytecode.
795 : static bool IsStarLookahead(Bytecode bytecode, OperandScale operand_scale);
796 :
797 : // Returns the number of registers represented by a register operand. For
798 : // instance, a RegPair represents two registers. Should not be called for
799 : // kRegList which has a variable number of registers based on the following
800 : // kRegCount operand.
801 39 : static int GetNumberOfRegistersRepresentedBy(OperandType operand_type) {
802 39 : switch (operand_type) {
803 : case OperandType::kReg:
804 : case OperandType::kRegOut:
805 : return 1;
806 : case OperandType::kRegPair:
807 : case OperandType::kRegOutPair:
808 4 : return 2;
809 : case OperandType::kRegOutTriple:
810 3 : return 3;
811 : case OperandType::kRegList:
812 0 : UNREACHABLE();
813 : return 0;
814 : default:
815 0 : return 0;
816 : }
817 : UNREACHABLE();
818 : return 0;
819 : }
820 :
821 : // Returns the size of |operand| for |operand_scale|.
822 : static OperandSize SizeOfOperand(OperandType operand, OperandScale scale);
823 :
824 : // Returns true if |operand_type| is a runtime-id operand (kRuntimeId).
825 : static bool IsRuntimeIdOperandType(OperandType operand_type);
826 :
827 : // Returns true if |operand_type| is unsigned, false if signed.
828 : static bool IsUnsignedOperandType(OperandType operand_type);
829 :
830 : // Returns true if a handler is generated for a bytecode at a given
831 : // operand scale. All bytecodes have handlers at OperandScale::kSingle,
832 : // but only bytecodes with scalable operands have handlers with larger
833 : // OperandScale values.
834 : static bool BytecodeHasHandler(Bytecode bytecode, OperandScale operand_scale);
835 :
836 : // Return the operand scale required to hold a signed operand with |value|.
837 51004873 : static OperandScale ScaleForSignedOperand(int32_t value) {
838 51004873 : if (value >= kMinInt8 && value <= kMaxInt8) {
839 : return OperandScale::kSingle;
840 6838079 : } else if (value >= kMinInt16 && value <= kMaxInt16) {
841 : return OperandScale::kDouble;
842 : } else {
843 173919 : return OperandScale::kQuadruple;
844 : }
845 : }
846 :
847 : // Return the operand scale required to hold an unsigned operand with |value|.
848 49425053 : static OperandScale ScaleForUnsignedOperand(uint32_t value) {
849 52494430 : if (value <= kMaxUInt8) {
850 : return OperandScale::kSingle;
851 5257861 : } else if (value <= kMaxUInt16) {
852 : return OperandScale::kDouble;
853 : } else {
854 16 : return OperandScale::kQuadruple;
855 : }
856 : }
857 :
858 : // Return the operand size required to hold an unsigned operand with |value|.
859 : static OperandSize SizeForUnsignedOperand(uint32_t value) {
860 : if (value <= kMaxUInt8) {
861 : return OperandSize::kByte;
862 : } else if (value <= kMaxUInt16) {
863 : return OperandSize::kShort;
864 : } else {
865 : return OperandSize::kQuad;
866 : }
867 : }
868 :
869 : private:
870 : static const OperandType* const kOperandTypes[];
871 : static const OperandTypeInfo* const kOperandTypeInfos[];
872 : static const int kOperandCount[];
873 : static const int kNumberOfRegisterOperands[];
874 : static const AccumulatorUse kAccumulatorUse[];
875 : static const bool kIsScalable[];
876 : static const int kBytecodeSizes[][3];
877 : static const OperandSize* const kOperandSizes[][3];
878 : };
879 :
880 : V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os,
881 : const Bytecode& bytecode);
882 :
883 : } // namespace interpreter
884 : } // namespace internal
885 : } // namespace v8
886 :
887 : #endif // V8_INTERPRETER_BYTECODES_H_
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