Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/qtdeclarative/src/qtdeclarative/src/3rdparty/masm/assembler/AbstractMacroAssembler.h |
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1 | /* | - | ||||||
2 | * Copyright (C) 2008, 2012 Apple Inc. All rights reserved. | - | ||||||
3 | * | - | ||||||
4 | * Redistribution and use in source and binary forms, with or without | - | ||||||
5 | * modification, are permitted provided that the following conditions | - | ||||||
6 | * are met: | - | ||||||
7 | * 1. Redistributions of source code must retain the above copyright | - | ||||||
8 | * notice, this list of conditions and the following disclaimer. | - | ||||||
9 | * 2. Redistributions in binary form must reproduce the above copyright | - | ||||||
10 | * notice, this list of conditions and the following disclaimer in the | - | ||||||
11 | * documentation and/or other materials provided with the distribution. | - | ||||||
12 | * | - | ||||||
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | - | ||||||
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | - | ||||||
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | - | ||||||
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | - | ||||||
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | - | ||||||
18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | - | ||||||
19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | - | ||||||
20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | - | ||||||
21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | - | ||||||
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | - | ||||||
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | - | ||||||
24 | */ | - | ||||||
25 | - | |||||||
26 | #ifndef AbstractMacroAssembler_h | - | ||||||
27 | #define AbstractMacroAssembler_h | - | ||||||
28 | - | |||||||
29 | #include "AssemblerBuffer.h" | - | ||||||
30 | #include "CodeLocation.h" | - | ||||||
31 | #include "MacroAssemblerCodeRef.h" | - | ||||||
32 | #include <wtf/CryptographicallyRandomNumber.h> | - | ||||||
33 | #include <wtf/Noncopyable.h> | - | ||||||
34 | #include <wtf/UnusedParam.h> | - | ||||||
35 | - | |||||||
36 | #if ENABLE(ASSEMBLER) | - | ||||||
37 | - | |||||||
38 | - | |||||||
39 | #if PLATFORM(QT) | - | ||||||
40 | #define ENABLE_JIT_CONSTANT_BLINDING 0 | - | ||||||
41 | #endif | - | ||||||
42 | - | |||||||
43 | #ifndef ENABLE_JIT_CONSTANT_BLINDING | - | ||||||
44 | #define ENABLE_JIT_CONSTANT_BLINDING 1 | - | ||||||
45 | #endif | - | ||||||
46 | - | |||||||
47 | namespace JSC { | - | ||||||
48 | - | |||||||
49 | class JumpReplacementWatchpoint; | - | ||||||
50 | template <typename, template <typename> class> | - | ||||||
51 | class LinkBufferBase; | - | ||||||
52 | template <typename> | - | ||||||
53 | class BranchCompactingLinkBuffer; | - | ||||||
54 | class RepatchBuffer; | - | ||||||
55 | class Watchpoint; | - | ||||||
56 | namespace DFG { | - | ||||||
57 | struct OSRExit; | - | ||||||
58 | } | - | ||||||
59 | - | |||||||
60 | template <class AssemblerType> | - | ||||||
61 | class AbstractMacroAssembler { | - | ||||||
62 | public: | - | ||||||
63 | friend class JITWriteBarrierBase; | - | ||||||
64 | typedef AssemblerType AssemblerType_T; | - | ||||||
65 | - | |||||||
66 | typedef MacroAssemblerCodePtr CodePtr; | - | ||||||
67 | typedef MacroAssemblerCodeRef CodeRef; | - | ||||||
68 | - | |||||||
69 | #if !CPU(ARM_THUMB2) && !CPU(ARM64) && !defined(V4_BOOTSTRAP) | - | ||||||
70 | class Jump; | - | ||||||
71 | #endif | - | ||||||
72 | - | |||||||
73 | typedef typename AssemblerType::RegisterID RegisterID; | - | ||||||
74 | typedef typename AssemblerType::FPRegisterID FPRegisterID; | - | ||||||
75 | - | |||||||
76 | // Section 1: MacroAssembler operand types | - | ||||||
77 | // | - | ||||||
78 | // The following types are used as operands to MacroAssembler operations, | - | ||||||
79 | // describing immediate and memory operands to the instructions to be planted. | - | ||||||
80 | - | |||||||
81 | enum Scale { | - | ||||||
82 | TimesOne, | - | ||||||
83 | TimesTwo, | - | ||||||
84 | TimesFour, | - | ||||||
85 | TimesEight, | - | ||||||
86 | }; | - | ||||||
87 | - | |||||||
88 | // Address: | - | ||||||
89 | // | - | ||||||
90 | // Describes a simple base-offset address. | - | ||||||
91 | struct Address { | - | ||||||
92 | explicit Address(RegisterID base, int32_t offset = 0) | - | ||||||
93 | : base(base) | - | ||||||
94 | , offset(offset) | - | ||||||
95 | { | - | ||||||
96 | } executed 2547284 times by 153 tests: end of block Executed by:
| 2547284 | ||||||
97 | - | |||||||
98 | RegisterID base; | - | ||||||
99 | int32_t offset; | - | ||||||
100 | }; | - | ||||||
101 | - | |||||||
102 | struct ExtendedAddress { | - | ||||||
103 | explicit ExtendedAddress(RegisterID base, intptr_t offset = 0) | - | ||||||
104 | : base(base) | - | ||||||
105 | , offset(offset) | - | ||||||
106 | { | - | ||||||
107 | } executed 3755 times by 3 tests: end of block Executed by:
| 3755 | ||||||
108 | - | |||||||
109 | RegisterID base; | - | ||||||
110 | intptr_t offset; | - | ||||||
111 | }; | - | ||||||
112 | - | |||||||
113 | // ImplicitAddress: | - | ||||||
114 | // | - | ||||||
115 | // This class is used for explicit 'load' and 'store' operations | - | ||||||
116 | // (as opposed to situations in which a memory operand is provided | - | ||||||
117 | // to a generic operation, such as an integer arithmetic instruction). | - | ||||||
118 | // | - | ||||||
119 | // In the case of a load (or store) operation we want to permit | - | ||||||
120 | // addresses to be implicitly constructed, e.g. the two calls: | - | ||||||
121 | // | - | ||||||
122 | // load32(Address(addrReg), destReg); | - | ||||||
123 | // load32(addrReg, destReg); | - | ||||||
124 | // | - | ||||||
125 | // Are equivalent, and the explicit wrapping of the Address in the former | - | ||||||
126 | // is unnecessary. | - | ||||||
127 | struct ImplicitAddress { | - | ||||||
128 | ImplicitAddress(RegisterID base) | - | ||||||
129 | : base(base) | - | ||||||
130 | , offset(0) | - | ||||||
131 | { | - | ||||||
132 | } executed 1153229 times by 153 tests: end of block Executed by:
| 1153229 | ||||||
133 | - | |||||||
134 | ImplicitAddress(Address address) | - | ||||||
135 | : base(address.base) | - | ||||||
136 | , offset(address.offset) | - | ||||||
137 | { | - | ||||||
138 | } executed 2495741 times by 153 tests: end of block Executed by:
| 2495741 | ||||||
139 | - | |||||||
140 | RegisterID base; | - | ||||||
141 | int32_t offset; | - | ||||||
142 | }; | - | ||||||
143 | - | |||||||
144 | // BaseIndex: | - | ||||||
145 | // | - | ||||||
146 | // Describes a complex addressing mode. | - | ||||||
147 | struct BaseIndex { | - | ||||||
148 | BaseIndex(RegisterID base, RegisterID index, Scale scale, int32_t offset = 0) | - | ||||||
149 | : base(base) | - | ||||||
150 | , index(index) | - | ||||||
151 | , scale(scale) | - | ||||||
152 | , offset(offset) | - | ||||||
153 | { | - | ||||||
154 | } executed 1589277 times by 9 tests: end of block Executed by:
| 1589277 | ||||||
155 | - | |||||||
156 | RegisterID base; | - | ||||||
157 | RegisterID index; | - | ||||||
158 | Scale scale; | - | ||||||
159 | int32_t offset; | - | ||||||
160 | }; | - | ||||||
161 | - | |||||||
162 | // AbsoluteAddress: | - | ||||||
163 | // | - | ||||||
164 | // Describes an memory operand given by a pointer. For regular load & store | - | ||||||
165 | // operations an unwrapped void* will be used, rather than using this. | - | ||||||
166 | struct AbsoluteAddress { | - | ||||||
167 | explicit AbsoluteAddress(const void* ptr) | - | ||||||
168 | : m_ptr(ptr) | - | ||||||
169 | { | - | ||||||
170 | } never executed: end of block | 0 | ||||||
171 | - | |||||||
172 | const void* m_ptr; | - | ||||||
173 | }; | - | ||||||
174 | - | |||||||
175 | // TrustedImmPtr: | - | ||||||
176 | // | - | ||||||
177 | // A pointer sized immediate operand to an instruction - this is wrapped | - | ||||||
178 | // in a class requiring explicit construction in order to differentiate | - | ||||||
179 | // from pointers used as absolute addresses to memory operations | - | ||||||
180 | struct TrustedImmPtr { | - | ||||||
181 | TrustedImmPtr() { } | - | ||||||
182 | - | |||||||
183 | explicit TrustedImmPtr(const void* value) | - | ||||||
184 | : m_value(value) | - | ||||||
185 | { | - | ||||||
186 | } executed 2398277 times by 153 tests: end of block Executed by:
| 2398277 | ||||||
187 | - | |||||||
188 | // This is only here so that TrustedImmPtr(0) does not confuse the C++ | - | ||||||
189 | // overload handling rules. | - | ||||||
190 | explicit TrustedImmPtr(int value) | - | ||||||
191 | : m_value(0) | - | ||||||
192 | { | - | ||||||
193 | ASSERT_UNUSED(value, !value); | - | ||||||
194 | } executed 13697 times by 65 tests: end of block Executed by:
| 13697 | ||||||
195 | - | |||||||
196 | explicit TrustedImmPtr(size_t value) | - | ||||||
197 | : m_value(reinterpret_cast<void*>(value)) | - | ||||||
198 | { | - | ||||||
199 | } never executed: end of block | 0 | ||||||
200 | - | |||||||
201 | intptr_t asIntptr() | - | ||||||
202 | { | - | ||||||
203 | return reinterpret_cast<intptr_t>(m_value); executed 2411803 times by 153 tests: return reinterpret_cast<intptr_t>(m_value); Executed by:
| 2411803 | ||||||
204 | } | - | ||||||
205 | - | |||||||
206 | const void* m_value; | - | ||||||
207 | }; | - | ||||||
208 | - | |||||||
209 | struct ImmPtr : | - | ||||||
210 | #if ENABLE(JIT_CONSTANT_BLINDING) | - | ||||||
211 | private TrustedImmPtr | - | ||||||
212 | #else | - | ||||||
213 | public TrustedImmPtr | - | ||||||
214 | #endif | - | ||||||
215 | { | - | ||||||
216 | explicit ImmPtr(const void* value) | - | ||||||
217 | : TrustedImmPtr(value) | - | ||||||
218 | { | - | ||||||
219 | } never executed: end of block | 0 | ||||||
220 | - | |||||||
221 | TrustedImmPtr asTrustedImmPtr() { return *this; } never executed: return *this; | 0 | ||||||
222 | }; | - | ||||||
223 | - | |||||||
224 | // TrustedImm32: | - | ||||||
225 | // | - | ||||||
226 | // A 32bit immediate operand to an instruction - this is wrapped in a | - | ||||||
227 | // class requiring explicit construction in order to prevent RegisterIDs | - | ||||||
228 | // (which are implemented as an enum) from accidentally being passed as | - | ||||||
229 | // immediate values. | - | ||||||
230 | struct TrustedImm32 { | - | ||||||
231 | TrustedImm32() { } | - | ||||||
232 | - | |||||||
233 | explicit TrustedImm32(int32_t value) | - | ||||||
234 | : m_value(value) | - | ||||||
235 | { | - | ||||||
236 | } executed 9765570 times by 153 tests: end of block Executed by:
| 9765570 | ||||||
237 | - | |||||||
238 | #if !CPU(X86_64) | - | ||||||
239 | explicit TrustedImm32(TrustedImmPtr ptr) | - | ||||||
240 | : m_value(ptr.asIntptr()) | - | ||||||
241 | { | - | ||||||
242 | } | - | ||||||
243 | #endif | - | ||||||
244 | - | |||||||
245 | int32_t m_value; | - | ||||||
246 | }; | - | ||||||
247 | - | |||||||
248 | - | |||||||
249 | struct Imm32 : | - | ||||||
250 | #if ENABLE(JIT_CONSTANT_BLINDING) | - | ||||||
251 | private TrustedImm32 | - | ||||||
252 | #else | - | ||||||
253 | public TrustedImm32 | - | ||||||
254 | #endif | - | ||||||
255 | { | - | ||||||
256 | explicit Imm32(int32_t value) | - | ||||||
257 | : TrustedImm32(value) | - | ||||||
258 | { | - | ||||||
259 | } executed 4887487 times by 153 tests: end of block Executed by:
| 4887487 | ||||||
260 | #if !CPU(X86_64) | - | ||||||
261 | explicit Imm32(TrustedImmPtr ptr) | - | ||||||
262 | : TrustedImm32(ptr) | - | ||||||
263 | { | - | ||||||
264 | } | - | ||||||
265 | #endif | - | ||||||
266 | const TrustedImm32& asTrustedImm32() const { return *this; } never executed: return *this; | 0 | ||||||
267 | - | |||||||
268 | }; | - | ||||||
269 | - | |||||||
270 | // TrustedImm64: | - | ||||||
271 | // | - | ||||||
272 | // A 64bit immediate operand to an instruction - this is wrapped in a | - | ||||||
273 | // class requiring explicit construction in order to prevent RegisterIDs | - | ||||||
274 | // (which are implemented as an enum) from accidentally being passed as | - | ||||||
275 | // immediate values. | - | ||||||
276 | struct TrustedImm64 { | - | ||||||
277 | TrustedImm64() { } | - | ||||||
278 | - | |||||||
279 | explicit TrustedImm64(int64_t value) | - | ||||||
280 | : m_value(value) | - | ||||||
281 | { | - | ||||||
282 | } executed 27294 times by 64 tests: end of block Executed by:
| 27294 | ||||||
283 | - | |||||||
284 | #if CPU(X86_64) || CPU(ARM64) | - | ||||||
285 | explicit TrustedImm64(TrustedImmPtr ptr) | - | ||||||
286 | : m_value(ptr.asIntptr()) | - | ||||||
287 | { | - | ||||||
288 | } executed 13246 times by 64 tests: end of block Executed by:
| 13246 | ||||||
289 | #endif | - | ||||||
290 | - | |||||||
291 | int64_t m_value; | - | ||||||
292 | }; | - | ||||||
293 | - | |||||||
294 | struct Imm64 : | - | ||||||
295 | #if ENABLE(JIT_CONSTANT_BLINDING) | - | ||||||
296 | private TrustedImm64 | - | ||||||
297 | #else | - | ||||||
298 | public TrustedImm64 | - | ||||||
299 | #endif | - | ||||||
300 | { | - | ||||||
301 | explicit Imm64(int64_t value) | - | ||||||
302 | : TrustedImm64(value) | - | ||||||
303 | { | - | ||||||
304 | } never executed: end of block | 0 | ||||||
305 | #if CPU(X86_64) || CPU(ARM64) | - | ||||||
306 | explicit Imm64(TrustedImmPtr ptr) | - | ||||||
307 | : TrustedImm64(ptr) | - | ||||||
308 | { | - | ||||||
309 | } never executed: end of block | 0 | ||||||
310 | #endif | - | ||||||
311 | const TrustedImm64& asTrustedImm64() const { return *this; } never executed: return *this; | 0 | ||||||
312 | }; | - | ||||||
313 | - | |||||||
314 | // Section 2: MacroAssembler code buffer handles | - | ||||||
315 | // | - | ||||||
316 | // The following types are used to reference items in the code buffer | - | ||||||
317 | // during JIT code generation. For example, the type Jump is used to | - | ||||||
318 | // track the location of a jump instruction so that it may later be | - | ||||||
319 | // linked to a label marking its destination. | - | ||||||
320 | - | |||||||
321 | - | |||||||
322 | // Label: | - | ||||||
323 | // | - | ||||||
324 | // A Label records a point in the generated instruction stream, typically such that | - | ||||||
325 | // it may be used as a destination for a jump. | - | ||||||
326 | class Label { | - | ||||||
327 | template<class TemplateAssemblerType> | - | ||||||
328 | friend class AbstractMacroAssembler; | - | ||||||
329 | friend struct DFG::OSRExit; | - | ||||||
330 | - | |||||||
331 | #if CPU(ARM_THUMB2) || CPU(ARM64) || defined(V4_BOOTSTRAP) | - | ||||||
332 | using Jump = typename AssemblerType::template Jump<Label>; | - | ||||||
333 | friend Jump; | - | ||||||
334 | #else | - | ||||||
335 | friend class Jump; | - | ||||||
336 | #endif | - | ||||||
337 | friend class JumpReplacementWatchpoint; | - | ||||||
338 | friend class MacroAssemblerCodeRef; | - | ||||||
339 | template <typename, template <typename> class> friend class LinkBufferBase; | - | ||||||
340 | friend class Watchpoint; | - | ||||||
341 | - | |||||||
342 | public: | - | ||||||
343 | Label() | - | ||||||
344 | { | - | ||||||
345 | } | - | ||||||
346 | - | |||||||
347 | Label(AbstractMacroAssembler<AssemblerType>* masm) | - | ||||||
348 | : m_label(masm->m_assembler.label()) | - | ||||||
349 | { | - | ||||||
350 | } executed 2324432 times by 153 tests: end of block Executed by:
| 2324432 | ||||||
351 | - | |||||||
352 | bool isSet() const { return m_label.isSet(); } executed 26592 times by 64 tests: return m_label.isSet(); Executed by:
| 26592 | ||||||
353 | - | |||||||
354 | const AssemblerLabel &label() const { return m_label; } never executed: return m_label; | 0 | ||||||
355 | private: | - | ||||||
356 | AssemblerLabel m_label; | - | ||||||
357 | }; | - | ||||||
358 | - | |||||||
359 | // ConvertibleLoadLabel: | - | ||||||
360 | // | - | ||||||
361 | // A ConvertibleLoadLabel records a loadPtr instruction that can be patched to an addPtr | - | ||||||
362 | // so that: | - | ||||||
363 | // | - | ||||||
364 | // loadPtr(Address(a, i), b) | - | ||||||
365 | // | - | ||||||
366 | // becomes: | - | ||||||
367 | // | - | ||||||
368 | // addPtr(TrustedImmPtr(i), a, b) | - | ||||||
369 | class ConvertibleLoadLabel { | - | ||||||
370 | template<class TemplateAssemblerType> | - | ||||||
371 | friend class AbstractMacroAssembler; | - | ||||||
372 | template <typename, template <typename> class> friend class LinkBufferBase; | - | ||||||
373 | - | |||||||
374 | public: | - | ||||||
375 | ConvertibleLoadLabel() | - | ||||||
376 | { | - | ||||||
377 | } | - | ||||||
378 | - | |||||||
379 | ConvertibleLoadLabel(AbstractMacroAssembler<AssemblerType>* masm) | - | ||||||
380 | : m_label(masm->m_assembler.labelIgnoringWatchpoints()) | - | ||||||
381 | { | - | ||||||
382 | } never executed: end of block | 0 | ||||||
383 | - | |||||||
384 | bool isSet() const { return m_label.isSet(); } never executed: return m_label.isSet(); | 0 | ||||||
385 | private: | - | ||||||
386 | AssemblerLabel m_label; | - | ||||||
387 | }; | - | ||||||
388 | - | |||||||
389 | // DataLabelPtr: | - | ||||||
390 | // | - | ||||||
391 | // A DataLabelPtr is used to refer to a location in the code containing a pointer to be | - | ||||||
392 | // patched after the code has been generated. | - | ||||||
393 | class DataLabelPtr { | - | ||||||
394 | template<class TemplateAssemblerType> | - | ||||||
395 | friend class AbstractMacroAssembler; | - | ||||||
396 | template <typename, template <typename> class> friend class LinkBufferBase; | - | ||||||
397 | public: | - | ||||||
398 | DataLabelPtr() | - | ||||||
399 | { | - | ||||||
400 | } | - | ||||||
401 | - | |||||||
402 | DataLabelPtr(AbstractMacroAssembler<AssemblerType>* masm) | - | ||||||
403 | : m_label(masm->m_assembler.label()) | - | ||||||
404 | { | - | ||||||
405 | } executed 610 times by 10 tests: end of block Executed by:
| 610 | ||||||
406 | - | |||||||
407 | bool isSet() const { return m_label.isSet(); } never executed: return m_label.isSet(); | 0 | ||||||
408 | - | |||||||
409 | private: | - | ||||||
410 | AssemblerLabel m_label; | - | ||||||
411 | }; | - | ||||||
412 | - | |||||||
413 | // DataLabel32: | - | ||||||
414 | // | - | ||||||
415 | // A DataLabelPtr is used to refer to a location in the code containing a pointer to be | - | ||||||
416 | // patched after the code has been generated. | - | ||||||
417 | class DataLabel32 { | - | ||||||
418 | template<class TemplateAssemblerType> | - | ||||||
419 | friend class AbstractMacroAssembler; | - | ||||||
420 | template <typename, template <typename> class> friend class LinkBufferBase; | - | ||||||
421 | public: | - | ||||||
422 | DataLabel32() | - | ||||||
423 | { | - | ||||||
424 | } | - | ||||||
425 | - | |||||||
426 | DataLabel32(AbstractMacroAssembler<AssemblerType>* masm) | - | ||||||
427 | : m_label(masm->m_assembler.label()) | - | ||||||
428 | { | - | ||||||
429 | } never executed: end of block | 0 | ||||||
430 | - | |||||||
431 | AssemblerLabel label() const { return m_label; } never executed: return m_label; | 0 | ||||||
432 | - | |||||||
433 | private: | - | ||||||
434 | AssemblerLabel m_label; | - | ||||||
435 | }; | - | ||||||
436 | - | |||||||
437 | // DataLabelCompact: | - | ||||||
438 | // | - | ||||||
439 | // A DataLabelCompact is used to refer to a location in the code containing a | - | ||||||
440 | // compact immediate to be patched after the code has been generated. | - | ||||||
441 | class DataLabelCompact { | - | ||||||
442 | template<class TemplateAssemblerType> | - | ||||||
443 | friend class AbstractMacroAssembler; | - | ||||||
444 | template <typename, template <typename> class> friend class LinkBufferBase; | - | ||||||
445 | public: | - | ||||||
446 | DataLabelCompact() | - | ||||||
447 | { | - | ||||||
448 | } | - | ||||||
449 | - | |||||||
450 | DataLabelCompact(AbstractMacroAssembler<AssemblerType>* masm) | - | ||||||
451 | : m_label(masm->m_assembler.label()) | - | ||||||
452 | { | - | ||||||
453 | } never executed: end of block | 0 | ||||||
454 | - | |||||||
455 | DataLabelCompact(AssemblerLabel label) | - | ||||||
456 | : m_label(label) | - | ||||||
457 | { | - | ||||||
458 | } never executed: end of block | 0 | ||||||
459 | - | |||||||
460 | private: | - | ||||||
461 | AssemblerLabel m_label; | - | ||||||
462 | }; | - | ||||||
463 | - | |||||||
464 | #if CPU(ARM_THUMB2) || CPU(ARM64) || defined(V4_BOOTSTRAP) | - | ||||||
465 | using Jump = typename AssemblerType::template Jump<Label>; | - | ||||||
466 | friend Jump; | - | ||||||
467 | #endif | - | ||||||
468 | - | |||||||
469 | // Call: | - | ||||||
470 | // | - | ||||||
471 | // A Call object is a reference to a call instruction that has been planted | - | ||||||
472 | // into the code buffer - it is typically used to link the call, setting the | - | ||||||
473 | // relative offset such that when executed it will call to the desired | - | ||||||
474 | // destination. | - | ||||||
475 | class Call { | - | ||||||
476 | template<class TemplateAssemblerType> | - | ||||||
477 | friend class AbstractMacroAssembler; | - | ||||||
478 | - | |||||||
479 | public: | - | ||||||
480 | enum Flags { | - | ||||||
481 | None = 0x0, | - | ||||||
482 | Linkable = 0x1, | - | ||||||
483 | Near = 0x2, | - | ||||||
484 | LinkableNear = 0x3, | - | ||||||
485 | }; | - | ||||||
486 | - | |||||||
487 | Call() | - | ||||||
488 | : m_flags(None) | - | ||||||
489 | { | - | ||||||
490 | } never executed: end of block | 0 | ||||||
491 | - | |||||||
492 | Call(AssemblerLabel jmp, Flags flags) | - | ||||||
493 | : m_label(jmp) | - | ||||||
494 | , m_flags(flags) | - | ||||||
495 | { | - | ||||||
496 | } executed 83222 times by 64 tests: end of block Executed by:
| 83222 | ||||||
497 | - | |||||||
498 | bool isFlagSet(Flags flag) | - | ||||||
499 | { | - | ||||||
500 | return m_flags & flag; never executed: return m_flags & flag; | 0 | ||||||
501 | } | - | ||||||
502 | - | |||||||
503 | static Call fromTailJump(Jump jump) | - | ||||||
504 | { | - | ||||||
505 | return Call(jump.m_label, Linkable); never executed: return Call(jump.m_label, Linkable); | 0 | ||||||
506 | } | - | ||||||
507 | - | |||||||
508 | AssemblerLabel m_label; | - | ||||||
509 | private: | - | ||||||
510 | Flags m_flags; | - | ||||||
511 | }; | - | ||||||
512 | - | |||||||
513 | // Jump: | - | ||||||
514 | // | - | ||||||
515 | // A jump object is a reference to a jump instruction that has been planted | - | ||||||
516 | // into the code buffer - it is typically used to link the jump, setting the | - | ||||||
517 | // relative offset such that when executed it will jump to the desired | - | ||||||
518 | // destination. | - | ||||||
519 | #if !CPU(ARM_THUMB2) && !CPU(ARM64) && !defined(V4_BOOTSTRAP) | - | ||||||
520 | class Jump { | - | ||||||
521 | template<class TemplateAssemblerType> | - | ||||||
522 | friend class AbstractMacroAssembler; | - | ||||||
523 | friend class Call; | - | ||||||
524 | friend struct DFG::OSRExit; | - | ||||||
525 | template <typename, template <typename> class> friend class LinkBufferBase; | - | ||||||
526 | public: | - | ||||||
527 | Jump() | - | ||||||
528 | { | - | ||||||
529 | } | - | ||||||
530 | - | |||||||
531 | #if CPU(ARM_THUMB2) || defined(V4_BOOTSTRAP) | - | ||||||
532 | // Fixme: this information should be stored in the instruction stream, not in the Jump object. | - | ||||||
533 | Jump(AssemblerLabel jmp, ARMv7Assembler::JumpType type = ARMv7Assembler::JumpNoCondition, ARMv7Assembler::Condition condition = ARMv7Assembler::ConditionInvalid) | - | ||||||
534 | : m_label(jmp) | - | ||||||
535 | , m_type(type) | - | ||||||
536 | , m_condition(condition) | - | ||||||
537 | { | - | ||||||
538 | } | - | ||||||
539 | #elif CPU(ARM64) | - | ||||||
540 | Jump(AssemblerLabel jmp, ARM64Assembler::JumpType type = ARM64Assembler::JumpNoCondition, ARM64Assembler::Condition condition = ARM64Assembler::ConditionInvalid) | - | ||||||
541 | : m_label(jmp) | - | ||||||
542 | , m_type(type) | - | ||||||
543 | , m_condition(condition) | - | ||||||
544 | { | - | ||||||
545 | } | - | ||||||
546 | - | |||||||
547 | Jump(AssemblerLabel jmp, ARM64Assembler::JumpType type, ARM64Assembler::Condition condition, bool is64Bit, ARM64Assembler::RegisterID compareRegister) | - | ||||||
548 | : m_label(jmp) | - | ||||||
549 | , m_type(type) | - | ||||||
550 | , m_condition(condition) | - | ||||||
551 | , m_is64Bit(is64Bit) | - | ||||||
552 | , m_compareRegister(compareRegister) | - | ||||||
553 | { | - | ||||||
554 | ASSERT((type == ARM64Assembler::JumpCompareAndBranch) || (type == ARM64Assembler::JumpCompareAndBranchFixedSize)); | - | ||||||
555 | } | - | ||||||
556 | - | |||||||
557 | Jump(AssemblerLabel jmp, ARM64Assembler::JumpType type, ARM64Assembler::Condition condition, unsigned bitNumber, ARM64Assembler::RegisterID compareRegister) | - | ||||||
558 | : m_label(jmp) | - | ||||||
559 | , m_type(type) | - | ||||||
560 | , m_condition(condition) | - | ||||||
561 | , m_bitNumber(bitNumber) | - | ||||||
562 | , m_compareRegister(compareRegister) | - | ||||||
563 | { | - | ||||||
564 | ASSERT((type == ARM64Assembler::JumpTestBit) || (type == ARM64Assembler::JumpTestBitFixedSize)); | - | ||||||
565 | } | - | ||||||
566 | #elif CPU(SH4) | - | ||||||
567 | Jump(AssemblerLabel jmp, SH4Assembler::JumpType type = SH4Assembler::JumpFar) | - | ||||||
568 | : m_label(jmp) | - | ||||||
569 | , m_type(type) | - | ||||||
570 | { | - | ||||||
571 | } | - | ||||||
572 | #else | - | ||||||
573 | Jump(AssemblerLabel jmp) | - | ||||||
574 | : m_label(jmp) | - | ||||||
575 | { | - | ||||||
576 | } executed 7520831 times by 153 tests: end of block Executed by:
| 7520831 | ||||||
577 | #endif | - | ||||||
578 | - | |||||||
579 | Label label() const | - | ||||||
580 | { | - | ||||||
581 | Label result; | - | ||||||
582 | result.m_label = m_label; | - | ||||||
583 | return result; never executed: return result; | 0 | ||||||
584 | } | - | ||||||
585 | - | |||||||
586 | void link(AbstractMacroAssembler<AssemblerType>* masm) const | - | ||||||
587 | { | - | ||||||
588 | #if ENABLE(DFG_REGISTER_ALLOCATION_VALIDATION) | - | ||||||
589 | masm->checkRegisterAllocationAgainstBranchRange(m_label.m_offset, masm->debugOffset()); | - | ||||||
590 | #endif | - | ||||||
591 | - | |||||||
592 | #if CPU(ARM_THUMB2) | - | ||||||
593 | masm->m_assembler.linkJump(m_label, masm->m_assembler.label(), m_type, m_condition); | - | ||||||
594 | #elif CPU(ARM64) | - | ||||||
595 | if ((m_type == ARM64Assembler::JumpCompareAndBranch) || (m_type == ARM64Assembler::JumpCompareAndBranchFixedSize)) | - | ||||||
596 | masm->m_assembler.linkJump(m_label, masm->m_assembler.label(), m_type, m_condition, m_is64Bit, m_compareRegister); | - | ||||||
597 | else if ((m_type == ARM64Assembler::JumpTestBit) || (m_type == ARM64Assembler::JumpTestBitFixedSize)) | - | ||||||
598 | masm->m_assembler.linkJump(m_label, masm->m_assembler.label(), m_type, m_condition, m_bitNumber, m_compareRegister); | - | ||||||
599 | else | - | ||||||
600 | masm->m_assembler.linkJump(m_label, masm->m_assembler.label(), m_type, m_condition); | - | ||||||
601 | #elif CPU(SH4) | - | ||||||
602 | masm->m_assembler.linkJump(m_label, masm->m_assembler.label(), m_type); | - | ||||||
603 | #else | - | ||||||
604 | masm->m_assembler.linkJump(m_label, masm->m_assembler.label()); | - | ||||||
605 | #endif | - | ||||||
606 | } executed 5196730 times by 153 tests: end of block Executed by:
| 5196730 | ||||||
607 | - | |||||||
608 | void linkTo(Label label, AbstractMacroAssembler<AssemblerType>* masm) const | - | ||||||
609 | { | - | ||||||
610 | #if ENABLE(DFG_REGISTER_ALLOCATION_VALIDATION) | - | ||||||
611 | masm->checkRegisterAllocationAgainstBranchRange(label.m_label.m_offset, m_label.m_offset); | - | ||||||
612 | #endif | - | ||||||
613 | - | |||||||
614 | #if CPU(ARM_THUMB2) | - | ||||||
615 | masm->m_assembler.linkJump(m_label, label.m_label, m_type, m_condition); | - | ||||||
616 | #elif CPU(ARM64) | - | ||||||
617 | if ((m_type == ARM64Assembler::JumpCompareAndBranch) || (m_type == ARM64Assembler::JumpCompareAndBranchFixedSize)) | - | ||||||
618 | masm->m_assembler.linkJump(m_label, label.m_label, m_type, m_condition, m_is64Bit, m_compareRegister); | - | ||||||
619 | else if ((m_type == ARM64Assembler::JumpTestBit) || (m_type == ARM64Assembler::JumpTestBitFixedSize)) | - | ||||||
620 | masm->m_assembler.linkJump(m_label, label.m_label, m_type, m_condition, m_bitNumber, m_compareRegister); | - | ||||||
621 | else | - | ||||||
622 | masm->m_assembler.linkJump(m_label, label.m_label, m_type, m_condition); | - | ||||||
623 | #else | - | ||||||
624 | masm->m_assembler.linkJump(m_label, label.m_label); | - | ||||||
625 | #endif | - | ||||||
626 | } executed 2330423 times by 153 tests: end of block Executed by:
| 2330423 | ||||||
627 | - | |||||||
628 | bool isSet() const { return m_label.isSet(); } executed 64678 times by 64 tests: return m_label.isSet(); Executed by:
| 64678 | ||||||
629 | - | |||||||
630 | private: | - | ||||||
631 | AssemblerLabel m_label; | - | ||||||
632 | #if CPU(ARM_THUMB2) || defined(V4_BOOTSTRAP) | - | ||||||
633 | ARMv7Assembler::JumpType m_type; | - | ||||||
634 | ARMv7Assembler::Condition m_condition; | - | ||||||
635 | #endif | - | ||||||
636 | #if CPU(ARM64) | - | ||||||
637 | ARM64Assembler::JumpType m_type; | - | ||||||
638 | ARM64Assembler::Condition m_condition; | - | ||||||
639 | bool m_is64Bit; | - | ||||||
640 | unsigned m_bitNumber; | - | ||||||
641 | ARM64Assembler::RegisterID m_compareRegister; | - | ||||||
642 | #endif | - | ||||||
643 | #if CPU(SH4) | - | ||||||
644 | SH4Assembler::JumpType m_type; | - | ||||||
645 | #endif | - | ||||||
646 | }; | - | ||||||
647 | #endif | - | ||||||
648 | - | |||||||
649 | struct PatchableJump { | - | ||||||
650 | PatchableJump() | - | ||||||
651 | { | - | ||||||
652 | } | - | ||||||
653 | - | |||||||
654 | explicit PatchableJump(Jump jump) | - | ||||||
655 | : m_jump(jump) | - | ||||||
656 | { | - | ||||||
657 | } never executed: end of block | 0 | ||||||
658 | - | |||||||
659 | operator Jump&() { return m_jump; } never executed: return m_jump; | 0 | ||||||
660 | - | |||||||
661 | Jump m_jump; | - | ||||||
662 | }; | - | ||||||
663 | - | |||||||
664 | // JumpList: | - | ||||||
665 | // | - | ||||||
666 | // A JumpList is a set of Jump objects. | - | ||||||
667 | // All jumps in the set will be linked to the same destination. | - | ||||||
668 | class JumpList { | - | ||||||
669 | template <typename, template <typename> class> friend class LinkBufferBase; | - | ||||||
670 | - | |||||||
671 | public: | - | ||||||
672 | typedef Vector<Jump, 2> JumpVector; | - | ||||||
673 | - | |||||||
674 | JumpList() { } | - | ||||||
675 | - | |||||||
676 | JumpList(Jump jump) | - | ||||||
677 | { | - | ||||||
678 | append(jump); | - | ||||||
679 | } never executed: end of block | 0 | ||||||
680 | - | |||||||
681 | void link(AbstractMacroAssembler<AssemblerType>* masm) | - | ||||||
682 | { | - | ||||||
683 | size_t size = m_jumps.size(); | - | ||||||
684 | for (size_t i = 0; i < size; ++i)
| 2318643-2777913 | ||||||
685 | m_jumps[i].link(masm); executed 2778363 times by 153 tests: m_jumps[i].link(masm); Executed by:
| 2778363 | ||||||
686 | m_jumps.clear(); | - | ||||||
687 | } executed 2317694 times by 153 tests: end of block Executed by:
| 2317694 | ||||||
688 | - | |||||||
689 | void linkTo(Label label, AbstractMacroAssembler<AssemblerType>* masm) | - | ||||||
690 | { | - | ||||||
691 | size_t size = m_jumps.size(); | - | ||||||
692 | for (size_t i = 0; i < size; ++i)
| 800-1210 | ||||||
693 | m_jumps[i].linkTo(label, masm); executed 1209 times by 5 tests: m_jumps[i].linkTo(label, masm); Executed by:
| 1209 | ||||||
694 | m_jumps.clear(); | - | ||||||
695 | } executed 800 times by 5 tests: end of block Executed by:
| 800 | ||||||
696 | - | |||||||
697 | void append(Jump jump) | - | ||||||
698 | { | - | ||||||
699 | m_jumps.append(jump); | - | ||||||
700 | } executed 2781479 times by 153 tests: end of block Executed by:
| 2781479 | ||||||
701 | - | |||||||
702 | void append(const JumpList& other) | - | ||||||
703 | { | - | ||||||
704 | m_jumps.append(other.m_jumps.begin(), other.m_jumps.size()); | - | ||||||
705 | } executed 2382740 times by 9 tests: end of block Executed by:
| 2382740 | ||||||
706 | - | |||||||
707 | bool empty() | - | ||||||
708 | { | - | ||||||
709 | return !m_jumps.size(); executed 2298520 times by 153 tests: return !m_jumps.size(); Executed by:
| 2298520 | ||||||
710 | } | - | ||||||
711 | - | |||||||
712 | void clear() | - | ||||||
713 | { | - | ||||||
714 | m_jumps.clear(); | - | ||||||
715 | } executed 1158343 times by 153 tests: end of block Executed by:
| 1158343 | ||||||
716 | - | |||||||
717 | const JumpVector& jumps() const { return m_jumps; } never executed: return m_jumps; | 0 | ||||||
718 | - | |||||||
719 | private: | - | ||||||
720 | JumpVector m_jumps; | - | ||||||
721 | }; | - | ||||||
722 | - | |||||||
723 | - | |||||||
724 | // Section 3: Misc admin methods | - | ||||||
725 | #if ENABLE(DFG_JIT) | - | ||||||
726 | Label labelIgnoringWatchpoints() | - | ||||||
727 | { | - | ||||||
728 | Label result; | - | ||||||
729 | result.m_label = m_assembler.labelIgnoringWatchpoints(); | - | ||||||
730 | return result; | - | ||||||
731 | } | - | ||||||
732 | #else | - | ||||||
733 | Label labelIgnoringWatchpoints() | - | ||||||
734 | { | - | ||||||
735 | return label(); never executed: return label(); | 0 | ||||||
736 | } | - | ||||||
737 | #endif | - | ||||||
738 | - | |||||||
739 | Label label() | - | ||||||
740 | { | - | ||||||
741 | return Label(this); executed 1170130 times by 153 tests: return Label(this); Executed by:
| 1170130 | ||||||
742 | } | - | ||||||
743 | - | |||||||
744 | void padBeforePatch() | - | ||||||
745 | { | - | ||||||
746 | // Rely on the fact that asking for a label already does the padding. | - | ||||||
747 | (void)label(); | - | ||||||
748 | } executed 610 times by 10 tests: end of block Executed by:
| 610 | ||||||
749 | - | |||||||
750 | Label watchpointLabel() | - | ||||||
751 | { | - | ||||||
752 | Label result; | - | ||||||
753 | result.m_label = m_assembler.labelForWatchpoint(); | - | ||||||
754 | return result; never executed: return result; | 0 | ||||||
755 | } | - | ||||||
756 | - | |||||||
757 | Label align() | - | ||||||
758 | { | - | ||||||
759 | m_assembler.align(16); | - | ||||||
760 | return Label(this); never executed: return Label(this); | 0 | ||||||
761 | } | - | ||||||
762 | - | |||||||
763 | #if ENABLE(DFG_REGISTER_ALLOCATION_VALIDATION) | - | ||||||
764 | class RegisterAllocationOffset { | - | ||||||
765 | public: | - | ||||||
766 | RegisterAllocationOffset(unsigned offset) | - | ||||||
767 | : m_offset(offset) | - | ||||||
768 | { | - | ||||||
769 | } | - | ||||||
770 | - | |||||||
771 | void check(unsigned low, unsigned high) | - | ||||||
772 | { | - | ||||||
773 | RELEASE_ASSERT_WITH_MESSAGE(!(low <= m_offset && m_offset <= high), "Unsafe branch over register allocation at instruction offset %u in jump offset range %u..%u", m_offset, low, high); | - | ||||||
774 | } | - | ||||||
775 | - | |||||||
776 | private: | - | ||||||
777 | unsigned m_offset; | - | ||||||
778 | }; | - | ||||||
779 | - | |||||||
780 | void addRegisterAllocationAtOffset(unsigned offset) | - | ||||||
781 | { | - | ||||||
782 | m_registerAllocationForOffsets.append(RegisterAllocationOffset(offset)); | - | ||||||
783 | } | - | ||||||
784 | - | |||||||
785 | void clearRegisterAllocationOffsets() | - | ||||||
786 | { | - | ||||||
787 | m_registerAllocationForOffsets.clear(); | - | ||||||
788 | } | - | ||||||
789 | - | |||||||
790 | void checkRegisterAllocationAgainstBranchRange(unsigned offset1, unsigned offset2) | - | ||||||
791 | { | - | ||||||
792 | if (offset1 > offset2) | - | ||||||
793 | std::swap(offset1, offset2); | - | ||||||
794 | - | |||||||
795 | size_t size = m_registerAllocationForOffsets.size(); | - | ||||||
796 | for (size_t i = 0; i < size; ++i) | - | ||||||
797 | m_registerAllocationForOffsets[i].check(offset1, offset2); | - | ||||||
798 | } | - | ||||||
799 | #endif | - | ||||||
800 | - | |||||||
801 | template<typename T, typename U> | - | ||||||
802 | static ptrdiff_t differenceBetween(T from, U to) | - | ||||||
803 | { | - | ||||||
804 | return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label); never executed: return AssemblerType::getDifferenceBetweenLabels(from.m_label, to.m_label); | 0 | ||||||
805 | } | - | ||||||
806 | - | |||||||
807 | static ptrdiff_t differenceBetweenCodePtr(const MacroAssemblerCodePtr& a, const MacroAssemblerCodePtr& b) | - | ||||||
808 | { | - | ||||||
809 | return reinterpret_cast<ptrdiff_t>(b.executableAddress()) - reinterpret_cast<ptrdiff_t>(a.executableAddress()); never executed: return reinterpret_cast<ptrdiff_t>(b.executableAddress()) - reinterpret_cast<ptrdiff_t>(a.executableAddress()); | 0 | ||||||
810 | } | - | ||||||
811 | - | |||||||
812 | unsigned debugOffset() { return m_assembler.debugOffset(); } never executed: return m_assembler.debugOffset(); | 0 | ||||||
813 | - | |||||||
814 | ALWAYS_INLINE static void cacheFlush(void* code, size_t size) | - | ||||||
815 | { | - | ||||||
816 | AssemblerType::cacheFlush(code, size); | - | ||||||
817 | } executed 1163856 times by 153 tests: end of block Executed by:
| 1163856 | ||||||
818 | protected: | - | ||||||
819 | AbstractMacroAssembler() | - | ||||||
820 | : m_randomSource(cryptographicallyRandomNumber()) | - | ||||||
821 | { | - | ||||||
822 | } executed 1162652 times by 153 tests: end of block Executed by:
| 1162652 | ||||||
823 | - | |||||||
824 | AssemblerType m_assembler; | - | ||||||
825 | - | |||||||
826 | uint32_t random() | - | ||||||
827 | { | - | ||||||
828 | return m_randomSource.getUint32(); never executed: return m_randomSource.getUint32(); | 0 | ||||||
829 | } | - | ||||||
830 | - | |||||||
831 | WeakRandom m_randomSource; | - | ||||||
832 | - | |||||||
833 | #if ENABLE(DFG_REGISTER_ALLOCATION_VALIDATION) | - | ||||||
834 | Vector<RegisterAllocationOffset, 10> m_registerAllocationForOffsets; | - | ||||||
835 | #endif | - | ||||||
836 | - | |||||||
837 | #if ENABLE(JIT_CONSTANT_BLINDING) | - | ||||||
838 | static bool scratchRegisterForBlinding() { return false; } | - | ||||||
839 | static bool shouldBlindForSpecificArch(uint32_t) { return true; } | - | ||||||
840 | static bool shouldBlindForSpecificArch(uint64_t) { return true; } | - | ||||||
841 | #endif | - | ||||||
842 | - | |||||||
843 | template <typename, template <typename> class> friend class LinkBufferBase; | - | ||||||
844 | template <typename> friend class BranchCompactingLinkBuffer; | - | ||||||
845 | friend class RepatchBuffer; | - | ||||||
846 | - | |||||||
847 | static void linkJump(void* code, Jump jump, CodeLocationLabel target) | - | ||||||
848 | { | - | ||||||
849 | AssemblerType::linkJump(code, jump.m_label, target.dataLocation()); | - | ||||||
850 | } never executed: end of block | 0 | ||||||
851 | - | |||||||
852 | static void linkPointer(void* code, AssemblerLabel label, void* value) | - | ||||||
853 | { | - | ||||||
854 | AssemblerType::linkPointer(code, label, value); | - | ||||||
855 | } executed 612 times by 10 tests: end of block Executed by:
| 612 | ||||||
856 | - | |||||||
857 | static void* getLinkerAddress(void* code, AssemblerLabel label) | - | ||||||
858 | { | - | ||||||
859 | return AssemblerType::getRelocatedAddress(code, label); executed 612 times by 10 tests: return AssemblerType::getRelocatedAddress(code, label); Executed by:
| 612 | ||||||
860 | } | - | ||||||
861 | - | |||||||
862 | static unsigned getLinkerCallReturnOffset(Call call) | - | ||||||
863 | { | - | ||||||
864 | return AssemblerType::getCallReturnOffset(call.m_label); never executed: return AssemblerType::getCallReturnOffset(call.m_label); | 0 | ||||||
865 | } | - | ||||||
866 | - | |||||||
867 | static void repatchJump(CodeLocationJump jump, CodeLocationLabel destination) | - | ||||||
868 | { | - | ||||||
869 | AssemblerType::relinkJump(jump.dataLocation(), destination.dataLocation()); | - | ||||||
870 | } never executed: end of block | 0 | ||||||
871 | - | |||||||
872 | static void repatchNearCall(CodeLocationNearCall nearCall, CodeLocationLabel destination) | - | ||||||
873 | { | - | ||||||
874 | AssemblerType::relinkCall(nearCall.dataLocation(), destination.executableAddress()); | - | ||||||
875 | } never executed: end of block | 0 | ||||||
876 | - | |||||||
877 | static void repatchCompact(CodeLocationDataLabelCompact dataLabelCompact, int32_t value) | - | ||||||
878 | { | - | ||||||
879 | AssemblerType::repatchCompact(dataLabelCompact.dataLocation(), value); | - | ||||||
880 | } never executed: end of block | 0 | ||||||
881 | - | |||||||
882 | static void repatchInt32(CodeLocationDataLabel32 dataLabel32, int32_t value) | - | ||||||
883 | { | - | ||||||
884 | AssemblerType::repatchInt32(dataLabel32.dataLocation(), value); | - | ||||||
885 | } never executed: end of block | 0 | ||||||
886 | - | |||||||
887 | static void repatchPointer(CodeLocationDataLabelPtr dataLabelPtr, void* value) | - | ||||||
888 | { | - | ||||||
889 | AssemblerType::repatchPointer(dataLabelPtr.dataLocation(), value); | - | ||||||
890 | } never executed: end of block | 0 | ||||||
891 | - | |||||||
892 | #if !defined(V4_BOOTSTRAP) | - | ||||||
893 | static void* readPointer(CodeLocationDataLabelPtr dataLabelPtr) | - | ||||||
894 | { | - | ||||||
895 | return AssemblerType::readPointer(dataLabelPtr.dataLocation()); never executed: return AssemblerType::readPointer(dataLabelPtr.dataLocation()); | 0 | ||||||
896 | } | - | ||||||
897 | #endif | - | ||||||
898 | - | |||||||
899 | static void replaceWithLoad(CodeLocationConvertibleLoad label) | - | ||||||
900 | { | - | ||||||
901 | AssemblerType::replaceWithLoad(label.dataLocation()); | - | ||||||
902 | } never executed: end of block | 0 | ||||||
903 | - | |||||||
904 | static void replaceWithAddressComputation(CodeLocationConvertibleLoad label) | - | ||||||
905 | { | - | ||||||
906 | AssemblerType::replaceWithAddressComputation(label.dataLocation()); | - | ||||||
907 | } never executed: end of block | 0 | ||||||
908 | }; | - | ||||||
909 | - | |||||||
910 | } // namespace JSC | - | ||||||
911 | - | |||||||
912 | #endif // ENABLE(ASSEMBLER) | - | ||||||
913 | - | |||||||
914 | #endif // AbstractMacroAssembler_h | - | ||||||
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