OLD | NEW |
1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/regexp_assembler_ir.h" | 5 #include "vm/regexp_assembler_ir.h" |
6 | 6 |
7 #include "vm/bit_vector.h" | 7 #include "vm/bit_vector.h" |
8 #include "vm/compiler.h" | 8 #include "vm/compiler.h" |
9 #include "vm/dart_entry.h" | 9 #include "vm/dart_entry.h" |
10 #include "vm/flow_graph_builder.h" | 10 #include "vm/flow_graph_builder.h" |
11 #include "vm/il_printer.h" | 11 #include "vm/il_printer.h" |
12 #include "vm/object_store.h" | 12 #include "vm/object_store.h" |
13 #include "vm/regexp.h" | 13 #include "vm/regexp.h" |
14 #include "vm/resolver.h" | 14 #include "vm/resolver.h" |
15 #include "vm/runtime_entry.h" | 15 #include "vm/runtime_entry.h" |
16 #include "vm/stack_frame.h" | 16 #include "vm/stack_frame.h" |
17 #include "vm/unibrow-inl.h" | 17 #include "vm/unibrow-inl.h" |
18 #include "vm/unicode.h" | 18 #include "vm/unicode.h" |
19 | 19 |
20 #define Z zone() | 20 #define Z zone() |
21 | 21 |
22 // Debugging output macros. TAG() is called at the head of each interesting | 22 // Debugging output macros. TAG() is called at the head of each interesting |
23 // function and prints its name during execution if irregexp tracing is enabled. | 23 // function and prints its name during execution if irregexp tracing is enabled. |
24 #define TAG() if (FLAG_trace_irregexp) { TAG_(); } | 24 #define TAG() \ |
25 #define TAG_() \ | 25 if (FLAG_trace_irregexp) { \ |
26 Print(PushArgument( \ | 26 TAG_(); \ |
27 Bind(new(Z) ConstantInstr(String::ZoneHandle(Z, String::Concat( \ | 27 } |
28 String::Handle(String::New("TAG: ")), \ | 28 #define TAG_() \ |
29 String::Handle(String::New(__FUNCTION__)), Heap::kOld)))))); | 29 Print(PushArgument(Bind(new (Z) ConstantInstr(String::ZoneHandle( \ |
| 30 Z, String::Concat(String::Handle(String::New("TAG: ")), \ |
| 31 String::Handle(String::New(__FUNCTION__)), \ |
| 32 Heap::kOld)))))); |
30 | 33 |
31 #define PRINT(arg) if (FLAG_trace_irregexp) { Print(arg); } | 34 #define PRINT(arg) \ |
| 35 if (FLAG_trace_irregexp) { \ |
| 36 Print(arg); \ |
| 37 } |
32 | 38 |
33 namespace dart { | 39 namespace dart { |
34 | 40 |
35 DEFINE_FLAG(bool, trace_irregexp, false, "Trace irregexps"); | 41 DEFINE_FLAG(bool, trace_irregexp, false, "Trace irregexps"); |
36 | 42 |
37 | 43 |
38 static const intptr_t kInvalidTryIndex = CatchClauseNode::kInvalidTryIndex; | 44 static const intptr_t kInvalidTryIndex = CatchClauseNode::kInvalidTryIndex; |
39 static const intptr_t kMinStackSize = 512; | 45 static const intptr_t kMinStackSize = 512; |
40 | 46 |
41 | 47 |
42 void PrintUtf16(uint16_t c) { | 48 void PrintUtf16(uint16_t c) { |
43 const char* format = (0x20 <= c && c <= 0x7F) ? | 49 const char* format = |
44 "%c" : (c <= 0xff) ? "\\x%02x" : "\\u%04x"; | 50 (0x20 <= c && c <= 0x7F) ? "%c" : (c <= 0xff) ? "\\x%02x" : "\\u%04x"; |
45 OS::Print(format, c); | 51 OS::Print(format, c); |
46 } | 52 } |
47 | 53 |
48 | 54 |
49 /* | 55 /* |
50 * This assembler uses the following main local variables: | 56 * This assembler uses the following main local variables: |
51 * - stack_: A pointer to a growable list which we use as an all-purpose stack | 57 * - stack_: A pointer to a growable list which we use as an all-purpose stack |
52 * storing backtracking offsets, positions & stored register values. | 58 * storing backtracking offsets, positions & stored register values. |
53 * - current_character_: Stores the currently loaded characters (possibly more | 59 * - current_character_: Stores the currently loaded characters (possibly more |
54 * than one). | 60 * than one). |
(...skipping 30 matching lines...) Expand all Loading... |
85 string_param_(NULL), | 91 string_param_(NULL), |
86 string_param_length_(NULL), | 92 string_param_length_(NULL), |
87 start_index_param_(NULL), | 93 start_index_param_(NULL), |
88 registers_count_(0), | 94 registers_count_(0), |
89 saved_registers_count_((capture_count + 1) * 2), | 95 saved_registers_count_((capture_count + 1) * 2), |
90 stack_array_cell_(Array::ZoneHandle(zone, Array::New(1, Heap::kOld))), | 96 stack_array_cell_(Array::ZoneHandle(zone, Array::New(1, Heap::kOld))), |
91 // The registers array is allocated at a fixed size after assembly. | 97 // The registers array is allocated at a fixed size after assembly. |
92 registers_array_(TypedData::ZoneHandle(zone, TypedData::null())) { | 98 registers_array_(TypedData::ZoneHandle(zone, TypedData::null())) { |
93 switch (specialization_cid) { | 99 switch (specialization_cid) { |
94 case kOneByteStringCid: | 100 case kOneByteStringCid: |
95 case kExternalOneByteStringCid: mode_ = ASCII; break; | 101 case kExternalOneByteStringCid: |
| 102 mode_ = ASCII; |
| 103 break; |
96 case kTwoByteStringCid: | 104 case kTwoByteStringCid: |
97 case kExternalTwoByteStringCid: mode_ = UC16; break; | 105 case kExternalTwoByteStringCid: |
98 default: UNREACHABLE(); | 106 mode_ = UC16; |
| 107 break; |
| 108 default: |
| 109 UNREACHABLE(); |
99 } | 110 } |
100 | 111 |
101 InitializeLocals(); | 112 InitializeLocals(); |
102 | 113 |
103 // Allocate an initial stack backing of the minimum stack size. The stack | 114 // Allocate an initial stack backing of the minimum stack size. The stack |
104 // backing is indirectly referred to so we can reuse it on subsequent matches | 115 // backing is indirectly referred to so we can reuse it on subsequent matches |
105 // even in the case where the backing has been enlarged and thus reallocated. | 116 // even in the case where the backing has been enlarged and thus reallocated. |
106 stack_array_cell_.SetAt(0, TypedData::Handle(zone, | 117 stack_array_cell_.SetAt( |
107 TypedData::New(kTypedDataInt32ArrayCid, kMinStackSize / 4, Heap::kOld))); | 118 0, |
| 119 TypedData::Handle(zone, TypedData::New(kTypedDataInt32ArrayCid, |
| 120 kMinStackSize / 4, Heap::kOld))); |
108 | 121 |
109 // Create and generate all preset blocks. | 122 // Create and generate all preset blocks. |
110 entry_block_ = | 123 entry_block_ = new (zone) GraphEntryInstr( |
111 new(zone) GraphEntryInstr( | 124 *parsed_function_, |
112 *parsed_function_, | 125 new (zone) TargetEntryInstr(block_id_.Alloc(), kInvalidTryIndex), |
113 new(zone) TargetEntryInstr(block_id_.Alloc(), kInvalidTryIndex), | 126 Compiler::kNoOSRDeoptId); |
114 Compiler::kNoOSRDeoptId); | 127 start_block_ = new (zone) JoinEntryInstr(block_id_.Alloc(), kInvalidTryIndex); |
115 start_block_ = | |
116 new(zone) JoinEntryInstr(block_id_.Alloc(), kInvalidTryIndex); | |
117 success_block_ = | 128 success_block_ = |
118 new(zone) JoinEntryInstr(block_id_.Alloc(), kInvalidTryIndex); | 129 new (zone) JoinEntryInstr(block_id_.Alloc(), kInvalidTryIndex); |
119 backtrack_block_ = | 130 backtrack_block_ = |
120 new(zone) JoinEntryInstr(block_id_.Alloc(), kInvalidTryIndex); | 131 new (zone) JoinEntryInstr(block_id_.Alloc(), kInvalidTryIndex); |
121 exit_block_ = | 132 exit_block_ = new (zone) JoinEntryInstr(block_id_.Alloc(), kInvalidTryIndex); |
122 new(zone) JoinEntryInstr(block_id_.Alloc(), kInvalidTryIndex); | |
123 | 133 |
124 GenerateEntryBlock(); | 134 GenerateEntryBlock(); |
125 GenerateSuccessBlock(); | 135 GenerateSuccessBlock(); |
126 GenerateExitBlock(); | 136 GenerateExitBlock(); |
127 | 137 |
128 blocks_.Add(entry_block_); | 138 blocks_.Add(entry_block_); |
129 blocks_.Add(entry_block_->normal_entry()); | 139 blocks_.Add(entry_block_->normal_entry()); |
130 blocks_.Add(start_block_); | 140 blocks_.Add(start_block_); |
131 blocks_.Add(success_block_); | 141 blocks_.Add(success_block_); |
132 blocks_.Add(backtrack_block_); | 142 blocks_.Add(backtrack_block_); |
133 blocks_.Add(exit_block_); | 143 blocks_.Add(exit_block_); |
134 | 144 |
135 // Begin emission at the start_block_. | 145 // Begin emission at the start_block_. |
136 set_current_instruction(start_block_); | 146 set_current_instruction(start_block_); |
137 } | 147 } |
138 | 148 |
139 | 149 |
140 IRRegExpMacroAssembler::~IRRegExpMacroAssembler() { } | 150 IRRegExpMacroAssembler::~IRRegExpMacroAssembler() {} |
141 | 151 |
142 | 152 |
143 void IRRegExpMacroAssembler::InitializeLocals() { | 153 void IRRegExpMacroAssembler::InitializeLocals() { |
144 // All generated functions are expected to have a current-context variable. | 154 // All generated functions are expected to have a current-context variable. |
145 // This variable is unused in irregexp functions. | 155 // This variable is unused in irregexp functions. |
146 parsed_function_->current_context_var()->set_index(GetNextLocalIndex()); | 156 parsed_function_->current_context_var()->set_index(GetNextLocalIndex()); |
147 | 157 |
148 // Create local variables and parameters. | 158 // Create local variables and parameters. |
149 stack_ = Local(Symbols::stack()); | 159 stack_ = Local(Symbols::stack()); |
150 stack_pointer_ = Local(Symbols::stack_pointer()); | 160 stack_pointer_ = Local(Symbols::stack_pointer()); |
(...skipping 17 matching lines...) Expand all Loading... |
168 } | 178 } |
169 | 179 |
170 | 180 |
171 void IRRegExpMacroAssembler::GenerateEntryBlock() { | 181 void IRRegExpMacroAssembler::GenerateEntryBlock() { |
172 set_current_instruction(entry_block_->normal_entry()); | 182 set_current_instruction(entry_block_->normal_entry()); |
173 TAG(); | 183 TAG(); |
174 | 184 |
175 // Store string.length. | 185 // Store string.length. |
176 PushArgumentInstr* string_push = PushLocal(string_param_); | 186 PushArgumentInstr* string_push = PushLocal(string_param_); |
177 | 187 |
178 StoreLocal( | 188 StoreLocal(string_param_length_, |
179 string_param_length_, | 189 Bind(InstanceCall(InstanceCallDescriptor(String::ZoneHandle( |
180 Bind(InstanceCall( | 190 Field::GetterSymbol(Symbols::Length()))), |
181 InstanceCallDescriptor( | 191 string_push))); |
182 String::ZoneHandle(Field::GetterSymbol(Symbols::Length()))), | |
183 string_push))); | |
184 | 192 |
185 // Store (start_index - string.length) as the current position (since it's a | 193 // Store (start_index - string.length) as the current position (since it's a |
186 // negative offset from the end of the string). | 194 // negative offset from the end of the string). |
187 PushArgumentInstr* start_index_push = PushLocal(start_index_param_); | 195 PushArgumentInstr* start_index_push = PushLocal(start_index_param_); |
188 PushArgumentInstr* length_push = PushLocal(string_param_length_); | 196 PushArgumentInstr* length_push = PushLocal(string_param_length_); |
189 | 197 |
190 StoreLocal(current_position_, Bind(Sub(start_index_push, length_push))); | 198 StoreLocal(current_position_, Bind(Sub(start_index_push, length_push))); |
191 | 199 |
192 // Generate a local list variable to represent "registers" and | 200 // Generate a local list variable to represent "registers" and |
193 // initialize capture registers (others remain garbage). | 201 // initialize capture registers (others remain garbage). |
194 StoreLocal(registers_, Bind(new(Z) ConstantInstr(registers_array_))); | 202 StoreLocal(registers_, Bind(new (Z) ConstantInstr(registers_array_))); |
195 ClearRegisters(0, saved_registers_count_ - 1); | 203 ClearRegisters(0, saved_registers_count_ - 1); |
196 | 204 |
197 // Generate a local list variable to represent the backtracking stack. | 205 // Generate a local list variable to represent the backtracking stack. |
198 PushArgumentInstr* stack_cell_push = | 206 PushArgumentInstr* stack_cell_push = |
199 PushArgument(Bind(new(Z) ConstantInstr(stack_array_cell_))); | 207 PushArgument(Bind(new (Z) ConstantInstr(stack_array_cell_))); |
200 StoreLocal(stack_, Bind(InstanceCall( | 208 StoreLocal(stack_, |
201 InstanceCallDescriptor::FromToken(Token::kINDEX), | 209 Bind(InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), |
202 stack_cell_push, | 210 stack_cell_push, |
203 PushArgument(Bind(Uint64Constant(0)))))); | 211 PushArgument(Bind(Uint64Constant(0)))))); |
204 StoreLocal(stack_pointer_, Bind(Int64Constant(-1))); | 212 StoreLocal(stack_pointer_, Bind(Int64Constant(-1))); |
205 | 213 |
206 // Jump to the start block. | 214 // Jump to the start block. |
207 current_instruction_->Goto(start_block_); | 215 current_instruction_->Goto(start_block_); |
208 } | 216 } |
209 | 217 |
210 | 218 |
211 void IRRegExpMacroAssembler::GenerateBacktrackBlock() { | 219 void IRRegExpMacroAssembler::GenerateBacktrackBlock() { |
212 set_current_instruction(backtrack_block_); | 220 set_current_instruction(backtrack_block_); |
213 TAG(); | 221 TAG(); |
214 CheckPreemption(); | 222 CheckPreemption(); |
215 | 223 |
216 const intptr_t entries_count = entry_block_->indirect_entries().length(); | 224 const intptr_t entries_count = entry_block_->indirect_entries().length(); |
217 | 225 |
218 TypedData& offsets = TypedData::ZoneHandle(Z, | 226 TypedData& offsets = TypedData::ZoneHandle( |
219 TypedData::New(kTypedDataInt32ArrayCid, entries_count, Heap::kOld)); | 227 Z, TypedData::New(kTypedDataInt32ArrayCid, entries_count, Heap::kOld)); |
220 | 228 |
221 PushArgumentInstr* block_offsets_push = | 229 PushArgumentInstr* block_offsets_push = |
222 PushArgument(Bind(new(Z) ConstantInstr(offsets))); | 230 PushArgument(Bind(new (Z) ConstantInstr(offsets))); |
223 PushArgumentInstr* block_id_push = PushArgument(Bind(PopStack())); | 231 PushArgumentInstr* block_id_push = PushArgument(Bind(PopStack())); |
224 | 232 |
225 Value* offset_value = | 233 Value* offset_value = |
226 Bind(InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), | 234 Bind(InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), |
227 block_offsets_push, | 235 block_offsets_push, block_id_push)); |
228 block_id_push)); | |
229 | 236 |
230 backtrack_goto_ = new(Z) IndirectGotoInstr(&offsets, offset_value); | 237 backtrack_goto_ = new (Z) IndirectGotoInstr(&offsets, offset_value); |
231 CloseBlockWith(backtrack_goto_); | 238 CloseBlockWith(backtrack_goto_); |
232 | 239 |
233 // Add an edge from the "indirect" goto to each of the targets. | 240 // Add an edge from the "indirect" goto to each of the targets. |
234 for (intptr_t j = 0; j < entries_count; j++) { | 241 for (intptr_t j = 0; j < entries_count; j++) { |
235 backtrack_goto_->AddSuccessor( | 242 backtrack_goto_->AddSuccessor( |
236 TargetWithJoinGoto(entry_block_->indirect_entries().At(j))); | 243 TargetWithJoinGoto(entry_block_->indirect_entries().At(j))); |
237 } | 244 } |
238 } | 245 } |
239 | 246 |
240 | 247 |
241 void IRRegExpMacroAssembler::GenerateSuccessBlock() { | 248 void IRRegExpMacroAssembler::GenerateSuccessBlock() { |
242 set_current_instruction(success_block_); | 249 set_current_instruction(success_block_); |
243 TAG(); | 250 TAG(); |
244 | 251 |
245 Value* type = Bind(new(Z) ConstantInstr( | 252 Value* type = Bind(new (Z) ConstantInstr( |
246 TypeArguments::ZoneHandle(Z, TypeArguments::null()))); | 253 TypeArguments::ZoneHandle(Z, TypeArguments::null()))); |
247 Value* length = Bind(Uint64Constant(saved_registers_count_)); | 254 Value* length = Bind(Uint64Constant(saved_registers_count_)); |
248 Value* array = Bind(new(Z) CreateArrayInstr( | 255 Value* array = |
249 TokenPosition::kNoSource, type, length)); | 256 Bind(new (Z) CreateArrayInstr(TokenPosition::kNoSource, type, length)); |
250 StoreLocal(result_, array); | 257 StoreLocal(result_, array); |
251 | 258 |
252 // Store captured offsets in the `matches` parameter. | 259 // Store captured offsets in the `matches` parameter. |
253 for (intptr_t i = 0; i < saved_registers_count_; i++) { | 260 for (intptr_t i = 0; i < saved_registers_count_; i++) { |
254 PushArgumentInstr* matches_push = PushLocal(result_); | 261 PushArgumentInstr* matches_push = PushLocal(result_); |
255 PushArgumentInstr* index_push = PushArgument(Bind(Uint64Constant(i))); | 262 PushArgumentInstr* index_push = PushArgument(Bind(Uint64Constant(i))); |
256 | 263 |
257 // Convert negative offsets from the end of the string to string indices. | 264 // Convert negative offsets from the end of the string to string indices. |
258 // TODO(zerny): use positive offsets from the get-go. | 265 // TODO(zerny): use positive offsets from the get-go. |
259 PushArgumentInstr* offset_push = PushArgument(LoadRegister(i)); | 266 PushArgumentInstr* offset_push = PushArgument(LoadRegister(i)); |
260 PushArgumentInstr* len_push = PushLocal(string_param_length_); | 267 PushArgumentInstr* len_push = PushLocal(string_param_length_); |
261 PushArgumentInstr* value_push = | 268 PushArgumentInstr* value_push = |
262 PushArgument(Bind(Add(offset_push, len_push))); | 269 PushArgument(Bind(Add(offset_push, len_push))); |
263 | 270 |
264 Do(InstanceCall(InstanceCallDescriptor::FromToken(Token::kASSIGN_INDEX), | 271 Do(InstanceCall(InstanceCallDescriptor::FromToken(Token::kASSIGN_INDEX), |
265 matches_push, | 272 matches_push, index_push, value_push)); |
266 index_push, | |
267 value_push)); | |
268 } | 273 } |
269 | 274 |
270 // Print the result if tracing. | 275 // Print the result if tracing. |
271 PRINT(PushLocal(result_)); | 276 PRINT(PushLocal(result_)); |
272 | 277 |
273 // Return true on success. | 278 // Return true on success. |
274 AppendInstruction(new(Z) ReturnInstr( | 279 AppendInstruction( |
275 TokenPosition::kNoSource, Bind(LoadLocal(result_)))); | 280 new (Z) ReturnInstr(TokenPosition::kNoSource, Bind(LoadLocal(result_)))); |
276 } | 281 } |
277 | 282 |
278 | 283 |
279 void IRRegExpMacroAssembler::GenerateExitBlock() { | 284 void IRRegExpMacroAssembler::GenerateExitBlock() { |
280 set_current_instruction(exit_block_); | 285 set_current_instruction(exit_block_); |
281 TAG(); | 286 TAG(); |
282 | 287 |
283 // Return false on failure. | 288 // Return false on failure. |
284 AppendInstruction(new(Z) ReturnInstr( | 289 AppendInstruction( |
285 TokenPosition::kNoSource, Bind(LoadLocal(result_)))); | 290 new (Z) ReturnInstr(TokenPosition::kNoSource, Bind(LoadLocal(result_)))); |
286 } | 291 } |
287 | 292 |
288 | 293 |
289 void IRRegExpMacroAssembler::FinalizeRegistersArray() { | 294 void IRRegExpMacroAssembler::FinalizeRegistersArray() { |
290 ASSERT(registers_count_ >= saved_registers_count_); | 295 ASSERT(registers_count_ >= saved_registers_count_); |
291 registers_array_ = | 296 registers_array_ = |
292 TypedData::New(kTypedDataInt32ArrayCid, registers_count_, Heap::kOld); | 297 TypedData::New(kTypedDataInt32ArrayCid, registers_count_, Heap::kOld); |
293 } | 298 } |
294 | 299 |
295 | 300 |
296 #if defined(TARGET_ARCH_ARM64) || \ | 301 #if defined(TARGET_ARCH_ARM64) || defined(TARGET_ARCH_ARM) || \ |
297 defined(TARGET_ARCH_ARM) || \ | |
298 defined(TARGET_ARCH_MIPS) | 302 defined(TARGET_ARCH_MIPS) |
299 // Disabling unaligned accesses forces the regexp engine to load characters one | 303 // Disabling unaligned accesses forces the regexp engine to load characters one |
300 // by one instead of up to 4 at once, along with the associated performance hit. | 304 // by one instead of up to 4 at once, along with the associated performance hit. |
301 // TODO(zerny): Be less conservative about disabling unaligned accesses. | 305 // TODO(zerny): Be less conservative about disabling unaligned accesses. |
302 // For instance, ARMv6 supports unaligned accesses. Once it is enabled here, | 306 // For instance, ARMv6 supports unaligned accesses. Once it is enabled here, |
303 // update LoadCodeUnitsInstr methods for the appropriate architectures. | 307 // update LoadCodeUnitsInstr methods for the appropriate architectures. |
304 static const bool kEnableUnalignedAccesses = false; | 308 static const bool kEnableUnalignedAccesses = false; |
305 #else | 309 #else |
306 static const bool kEnableUnalignedAccesses = true; | 310 static const bool kEnableUnalignedAccesses = true; |
307 #endif | 311 #endif |
308 bool IRRegExpMacroAssembler::CanReadUnaligned() { | 312 bool IRRegExpMacroAssembler::CanReadUnaligned() { |
309 return kEnableUnalignedAccesses && !slow_safe(); | 313 return kEnableUnalignedAccesses && !slow_safe(); |
310 } | 314 } |
311 | 315 |
312 | 316 |
313 RawArray* IRRegExpMacroAssembler::Execute( | 317 RawArray* IRRegExpMacroAssembler::Execute(const RegExp& regexp, |
314 const RegExp& regexp, | 318 const String& input, |
315 const String& input, | 319 const Smi& start_offset, |
316 const Smi& start_offset, | 320 Zone* zone) { |
317 Zone* zone) { | |
318 const intptr_t cid = input.GetClassId(); | 321 const intptr_t cid = input.GetClassId(); |
319 const Function& fun = Function::Handle(regexp.function(cid)); | 322 const Function& fun = Function::Handle(regexp.function(cid)); |
320 ASSERT(!fun.IsNull()); | 323 ASSERT(!fun.IsNull()); |
321 // Create the argument list. | 324 // Create the argument list. |
322 const Array& args = | 325 const Array& args = |
323 Array::Handle(Array::New(RegExpMacroAssembler::kParamCount)); | 326 Array::Handle(Array::New(RegExpMacroAssembler::kParamCount)); |
324 args.SetAt(RegExpMacroAssembler::kParamRegExpIndex, regexp); | 327 args.SetAt(RegExpMacroAssembler::kParamRegExpIndex, regexp); |
325 args.SetAt(RegExpMacroAssembler::kParamStringIndex, input); | 328 args.SetAt(RegExpMacroAssembler::kParamStringIndex, input); |
326 args.SetAt(RegExpMacroAssembler::kParamStartOffsetIndex, start_offset); | 329 args.SetAt(RegExpMacroAssembler::kParamStartOffsetIndex, start_offset); |
327 | 330 |
(...skipping 27 matching lines...) Expand all Loading... |
355 const Smi& length = Smi::Handle(length_raw); | 358 const Smi& length = Smi::Handle(length_raw); |
356 | 359 |
357 // TODO(zerny): Optimize as single instance. V8 has this as an | 360 // TODO(zerny): Optimize as single instance. V8 has this as an |
358 // isolate member. | 361 // isolate member. |
359 unibrow::Mapping<unibrow::Ecma262Canonicalize> canonicalize; | 362 unibrow::Mapping<unibrow::Ecma262Canonicalize> canonicalize; |
360 | 363 |
361 for (intptr_t i = 0; i < length.Value(); i++) { | 364 for (intptr_t i = 0; i < length.Value(); i++) { |
362 int32_t c1 = str.CharAt(lhs_index.Value() + i); | 365 int32_t c1 = str.CharAt(lhs_index.Value() + i); |
363 int32_t c2 = str.CharAt(rhs_index.Value() + i); | 366 int32_t c2 = str.CharAt(rhs_index.Value() + i); |
364 if (c1 != c2) { | 367 if (c1 != c2) { |
365 int32_t s1[1] = { c1 }; | 368 int32_t s1[1] = {c1}; |
366 canonicalize.get(c1, '\0', s1); | 369 canonicalize.get(c1, '\0', s1); |
367 if (s1[0] != c2) { | 370 if (s1[0] != c2) { |
368 int32_t s2[1] = { c2 }; | 371 int32_t s2[1] = {c2}; |
369 canonicalize.get(c2, '\0', s2); | 372 canonicalize.get(c2, '\0', s2); |
370 if (s1[0] != s2[0]) { | 373 if (s1[0] != s2[0]) { |
371 return Bool::False().raw(); | 374 return Bool::False().raw(); |
372 } | 375 } |
373 } | 376 } |
374 } | 377 } |
375 } | 378 } |
376 return Bool::True().raw(); | 379 return Bool::True().raw(); |
377 } | 380 } |
378 | 381 |
379 | 382 |
380 DEFINE_RAW_LEAF_RUNTIME_ENTRY( | 383 DEFINE_RAW_LEAF_RUNTIME_ENTRY( |
381 CaseInsensitiveCompareUC16, 4, false /* is_float */, | 384 CaseInsensitiveCompareUC16, |
| 385 4, |
| 386 false /* is_float */, |
382 reinterpret_cast<RuntimeFunction>(&CaseInsensitiveCompareUC16)); | 387 reinterpret_cast<RuntimeFunction>(&CaseInsensitiveCompareUC16)); |
383 | 388 |
384 | 389 |
385 LocalVariable* IRRegExpMacroAssembler::Parameter(const String& name, | 390 LocalVariable* IRRegExpMacroAssembler::Parameter(const String& name, |
386 intptr_t index) const { | 391 intptr_t index) const { |
387 LocalVariable* local = new(Z) LocalVariable( | 392 LocalVariable* local = |
388 TokenPosition::kNoSource, | 393 new (Z) LocalVariable(TokenPosition::kNoSource, TokenPosition::kNoSource, |
389 TokenPosition::kNoSource, | 394 name, Object::dynamic_type()); |
390 name, | |
391 Object::dynamic_type()); | |
392 | 395 |
393 intptr_t param_frame_index = kParamEndSlotFromFp + kParamCount - index; | 396 intptr_t param_frame_index = kParamEndSlotFromFp + kParamCount - index; |
394 local->set_index(param_frame_index); | 397 local->set_index(param_frame_index); |
395 | 398 |
396 return local; | 399 return local; |
397 } | 400 } |
398 | 401 |
399 | 402 |
400 LocalVariable* IRRegExpMacroAssembler::Local(const String& name) { | 403 LocalVariable* IRRegExpMacroAssembler::Local(const String& name) { |
401 LocalVariable* local = new(Z) LocalVariable( | 404 LocalVariable* local = |
402 TokenPosition::kNoSource, | 405 new (Z) LocalVariable(TokenPosition::kNoSource, TokenPosition::kNoSource, |
403 TokenPosition::kNoSource, | 406 name, Object::dynamic_type()); |
404 name, | |
405 Object::dynamic_type()); | |
406 local->set_index(GetNextLocalIndex()); | 407 local->set_index(GetNextLocalIndex()); |
407 | 408 |
408 return local; | 409 return local; |
409 } | 410 } |
410 | 411 |
411 | 412 |
412 ConstantInstr* IRRegExpMacroAssembler::Int64Constant(int64_t value) const { | 413 ConstantInstr* IRRegExpMacroAssembler::Int64Constant(int64_t value) const { |
413 return new(Z) ConstantInstr( | 414 return new (Z) |
414 Integer::ZoneHandle(Z, Integer::New(value, Heap::kOld))); | 415 ConstantInstr(Integer::ZoneHandle(Z, Integer::New(value, Heap::kOld))); |
415 } | 416 } |
416 | 417 |
417 | 418 |
418 ConstantInstr* IRRegExpMacroAssembler::Uint64Constant(uint64_t value) const { | 419 ConstantInstr* IRRegExpMacroAssembler::Uint64Constant(uint64_t value) const { |
419 return new(Z) ConstantInstr( | 420 return new (Z) ConstantInstr( |
420 Integer::ZoneHandle(Z, Integer::NewFromUint64(value, Heap::kOld))); | 421 Integer::ZoneHandle(Z, Integer::NewFromUint64(value, Heap::kOld))); |
421 } | 422 } |
422 | 423 |
423 | 424 |
424 ConstantInstr* IRRegExpMacroAssembler::BoolConstant(bool value) const { | 425 ConstantInstr* IRRegExpMacroAssembler::BoolConstant(bool value) const { |
425 return new(Z) ConstantInstr(value ? Bool::True() : Bool::False()); | 426 return new (Z) ConstantInstr(value ? Bool::True() : Bool::False()); |
426 } | 427 } |
427 | 428 |
428 | 429 |
429 ConstantInstr* IRRegExpMacroAssembler::StringConstant(const char* value) const { | 430 ConstantInstr* IRRegExpMacroAssembler::StringConstant(const char* value) const { |
430 return new(Z) ConstantInstr( | 431 return new (Z) |
431 String::ZoneHandle(Z, String::New(value, Heap::kOld))); | 432 ConstantInstr(String::ZoneHandle(Z, String::New(value, Heap::kOld))); |
432 } | 433 } |
433 | 434 |
434 | 435 |
435 ConstantInstr* IRRegExpMacroAssembler::WordCharacterMapConstant() const { | 436 ConstantInstr* IRRegExpMacroAssembler::WordCharacterMapConstant() const { |
436 const Library& lib = Library::Handle(Z, Library::CoreLibrary()); | 437 const Library& lib = Library::Handle(Z, Library::CoreLibrary()); |
437 const Class& regexp_class = Class::Handle(Z, | 438 const Class& regexp_class = |
438 lib.LookupClassAllowPrivate(Symbols::_RegExp())); | 439 Class::Handle(Z, lib.LookupClassAllowPrivate(Symbols::_RegExp())); |
439 const Field& word_character_field = Field::ZoneHandle(Z, | 440 const Field& word_character_field = Field::ZoneHandle( |
| 441 Z, |
440 regexp_class.LookupStaticFieldAllowPrivate(Symbols::_wordCharacterMap())); | 442 regexp_class.LookupStaticFieldAllowPrivate(Symbols::_wordCharacterMap())); |
441 ASSERT(!word_character_field.IsNull()); | 443 ASSERT(!word_character_field.IsNull()); |
442 | 444 |
443 if (word_character_field.IsUninitialized()) { | 445 if (word_character_field.IsUninitialized()) { |
444 ASSERT(!Compiler::IsBackgroundCompilation()); | 446 ASSERT(!Compiler::IsBackgroundCompilation()); |
445 word_character_field.EvaluateInitializer(); | 447 word_character_field.EvaluateInitializer(); |
446 } | 448 } |
447 ASSERT(!word_character_field.IsUninitialized()); | 449 ASSERT(!word_character_field.IsUninitialized()); |
448 | 450 |
449 return new(Z) ConstantInstr( | 451 return new (Z) ConstantInstr( |
450 Instance::ZoneHandle(Z, word_character_field.StaticValue())); | 452 Instance::ZoneHandle(Z, word_character_field.StaticValue())); |
451 } | 453 } |
452 | 454 |
453 | 455 |
454 ComparisonInstr* IRRegExpMacroAssembler::Comparison( | 456 ComparisonInstr* IRRegExpMacroAssembler::Comparison(ComparisonKind kind, |
455 ComparisonKind kind, PushArgumentInstr* lhs, PushArgumentInstr* rhs) { | 457 PushArgumentInstr* lhs, |
| 458 PushArgumentInstr* rhs) { |
456 Token::Kind strict_comparison = Token::kEQ_STRICT; | 459 Token::Kind strict_comparison = Token::kEQ_STRICT; |
457 Token::Kind intermediate_operator = Token::kILLEGAL; | 460 Token::Kind intermediate_operator = Token::kILLEGAL; |
458 switch (kind) { | 461 switch (kind) { |
459 case kEQ: | 462 case kEQ: |
460 intermediate_operator = Token::kEQ; | 463 intermediate_operator = Token::kEQ; |
461 break; | 464 break; |
462 case kNE: | 465 case kNE: |
463 intermediate_operator = Token::kEQ; | 466 intermediate_operator = Token::kEQ; |
464 strict_comparison = Token::kNE_STRICT; | 467 strict_comparison = Token::kNE_STRICT; |
465 break; | 468 break; |
466 case kLT: | 469 case kLT: |
467 intermediate_operator = Token::kLT; | 470 intermediate_operator = Token::kLT; |
468 break; | 471 break; |
469 case kGT: | 472 case kGT: |
470 intermediate_operator = Token::kGT; | 473 intermediate_operator = Token::kGT; |
471 break; | 474 break; |
472 case kLTE: | 475 case kLTE: |
473 intermediate_operator = Token::kLTE; | 476 intermediate_operator = Token::kLTE; |
474 break; | 477 break; |
475 case kGTE: | 478 case kGTE: |
476 intermediate_operator = Token::kGTE; | 479 intermediate_operator = Token::kGTE; |
477 break; | 480 break; |
478 default: | 481 default: |
479 UNREACHABLE(); | 482 UNREACHABLE(); |
480 } | 483 } |
481 | 484 |
482 ASSERT(intermediate_operator != Token::kILLEGAL); | 485 ASSERT(intermediate_operator != Token::kILLEGAL); |
483 | 486 |
484 Value* lhs_value = | 487 Value* lhs_value = Bind(InstanceCall( |
485 Bind(InstanceCall( | 488 InstanceCallDescriptor::FromToken(intermediate_operator), lhs, rhs)); |
486 InstanceCallDescriptor::FromToken(intermediate_operator), | |
487 lhs, | |
488 rhs)); | |
489 Value* rhs_value = Bind(BoolConstant(true)); | 489 Value* rhs_value = Bind(BoolConstant(true)); |
490 | 490 |
491 return new(Z) StrictCompareInstr( | 491 return new (Z) StrictCompareInstr(TokenPosition::kNoSource, strict_comparison, |
492 TokenPosition::kNoSource, strict_comparison, lhs_value, rhs_value, true); | 492 lhs_value, rhs_value, true); |
493 } | 493 } |
494 | 494 |
495 ComparisonInstr* IRRegExpMacroAssembler::Comparison( | 495 ComparisonInstr* IRRegExpMacroAssembler::Comparison(ComparisonKind kind, |
496 ComparisonKind kind, Definition* lhs, Definition* rhs) { | 496 Definition* lhs, |
| 497 Definition* rhs) { |
497 PushArgumentInstr* lhs_push = PushArgument(Bind(lhs)); | 498 PushArgumentInstr* lhs_push = PushArgument(Bind(lhs)); |
498 PushArgumentInstr* rhs_push = PushArgument(Bind(rhs)); | 499 PushArgumentInstr* rhs_push = PushArgument(Bind(rhs)); |
499 return Comparison(kind, lhs_push, rhs_push); | 500 return Comparison(kind, lhs_push, rhs_push); |
500 } | 501 } |
501 | 502 |
502 | 503 |
503 StaticCallInstr* IRRegExpMacroAssembler::StaticCall( | 504 StaticCallInstr* IRRegExpMacroAssembler::StaticCall( |
504 const Function& function) const { | 505 const Function& function) const { |
505 ZoneGrowableArray<PushArgumentInstr*>* arguments = | 506 ZoneGrowableArray<PushArgumentInstr*>* arguments = |
506 new(Z) ZoneGrowableArray<PushArgumentInstr*>(0); | 507 new (Z) ZoneGrowableArray<PushArgumentInstr*>(0); |
507 return StaticCall(function, arguments); | 508 return StaticCall(function, arguments); |
508 } | 509 } |
509 | 510 |
510 | 511 |
511 StaticCallInstr* IRRegExpMacroAssembler::StaticCall( | 512 StaticCallInstr* IRRegExpMacroAssembler::StaticCall( |
512 const Function& function, | 513 const Function& function, |
513 PushArgumentInstr* arg1) const { | 514 PushArgumentInstr* arg1) const { |
514 ZoneGrowableArray<PushArgumentInstr*>* arguments = | 515 ZoneGrowableArray<PushArgumentInstr*>* arguments = |
515 new(Z) ZoneGrowableArray<PushArgumentInstr*>(1); | 516 new (Z) ZoneGrowableArray<PushArgumentInstr*>(1); |
516 arguments->Add(arg1); | 517 arguments->Add(arg1); |
517 | 518 |
518 return StaticCall(function, arguments); | 519 return StaticCall(function, arguments); |
519 } | 520 } |
520 | 521 |
521 | 522 |
522 StaticCallInstr* IRRegExpMacroAssembler::StaticCall( | 523 StaticCallInstr* IRRegExpMacroAssembler::StaticCall( |
523 const Function& function, | 524 const Function& function, |
524 PushArgumentInstr* arg1, | 525 PushArgumentInstr* arg1, |
525 PushArgumentInstr* arg2) const { | 526 PushArgumentInstr* arg2) const { |
526 ZoneGrowableArray<PushArgumentInstr*>* arguments = | 527 ZoneGrowableArray<PushArgumentInstr*>* arguments = |
527 new(Z) ZoneGrowableArray<PushArgumentInstr*>(2); | 528 new (Z) ZoneGrowableArray<PushArgumentInstr*>(2); |
528 arguments->Add(arg1); | 529 arguments->Add(arg1); |
529 arguments->Add(arg2); | 530 arguments->Add(arg2); |
530 | 531 |
531 return StaticCall(function, arguments); | 532 return StaticCall(function, arguments); |
532 } | 533 } |
533 | 534 |
534 | 535 |
535 StaticCallInstr* IRRegExpMacroAssembler::StaticCall( | 536 StaticCallInstr* IRRegExpMacroAssembler::StaticCall( |
536 const Function& function, | 537 const Function& function, |
537 ZoneGrowableArray<PushArgumentInstr*>* arguments) const { | 538 ZoneGrowableArray<PushArgumentInstr*>* arguments) const { |
538 return new(Z) StaticCallInstr(TokenPosition::kNoSource, | 539 return new (Z) |
539 function, | 540 StaticCallInstr(TokenPosition::kNoSource, function, Object::null_array(), |
540 Object::null_array(), | 541 arguments, ic_data_array_); |
541 arguments, | |
542 ic_data_array_); | |
543 } | 542 } |
544 | 543 |
545 | 544 |
546 InstanceCallInstr* IRRegExpMacroAssembler::InstanceCall( | 545 InstanceCallInstr* IRRegExpMacroAssembler::InstanceCall( |
547 const InstanceCallDescriptor& desc, | 546 const InstanceCallDescriptor& desc, |
548 PushArgumentInstr* arg1) const { | 547 PushArgumentInstr* arg1) const { |
549 ZoneGrowableArray<PushArgumentInstr*>* arguments = | 548 ZoneGrowableArray<PushArgumentInstr*>* arguments = |
550 new(Z) ZoneGrowableArray<PushArgumentInstr*>(1); | 549 new (Z) ZoneGrowableArray<PushArgumentInstr*>(1); |
551 arguments->Add(arg1); | 550 arguments->Add(arg1); |
552 | 551 |
553 return InstanceCall(desc, arguments); | 552 return InstanceCall(desc, arguments); |
554 } | 553 } |
555 | 554 |
556 | 555 |
557 InstanceCallInstr* IRRegExpMacroAssembler::InstanceCall( | 556 InstanceCallInstr* IRRegExpMacroAssembler::InstanceCall( |
558 const InstanceCallDescriptor& desc, | 557 const InstanceCallDescriptor& desc, |
559 PushArgumentInstr* arg1, | 558 PushArgumentInstr* arg1, |
560 PushArgumentInstr* arg2) const { | 559 PushArgumentInstr* arg2) const { |
561 ZoneGrowableArray<PushArgumentInstr*>* arguments = | 560 ZoneGrowableArray<PushArgumentInstr*>* arguments = |
562 new(Z) ZoneGrowableArray<PushArgumentInstr*>(2); | 561 new (Z) ZoneGrowableArray<PushArgumentInstr*>(2); |
563 arguments->Add(arg1); | 562 arguments->Add(arg1); |
564 arguments->Add(arg2); | 563 arguments->Add(arg2); |
565 | 564 |
566 return InstanceCall(desc, arguments); | 565 return InstanceCall(desc, arguments); |
567 } | 566 } |
568 | 567 |
569 | 568 |
570 InstanceCallInstr* IRRegExpMacroAssembler::InstanceCall( | 569 InstanceCallInstr* IRRegExpMacroAssembler::InstanceCall( |
571 const InstanceCallDescriptor& desc, | 570 const InstanceCallDescriptor& desc, |
572 PushArgumentInstr* arg1, | 571 PushArgumentInstr* arg1, |
573 PushArgumentInstr* arg2, | 572 PushArgumentInstr* arg2, |
574 PushArgumentInstr* arg3) const { | 573 PushArgumentInstr* arg3) const { |
575 ZoneGrowableArray<PushArgumentInstr*>* arguments = | 574 ZoneGrowableArray<PushArgumentInstr*>* arguments = |
576 new(Z) ZoneGrowableArray<PushArgumentInstr*>(3); | 575 new (Z) ZoneGrowableArray<PushArgumentInstr*>(3); |
577 arguments->Add(arg1); | 576 arguments->Add(arg1); |
578 arguments->Add(arg2); | 577 arguments->Add(arg2); |
579 arguments->Add(arg3); | 578 arguments->Add(arg3); |
580 | 579 |
581 return InstanceCall(desc, arguments); | 580 return InstanceCall(desc, arguments); |
582 } | 581 } |
583 | 582 |
584 | 583 |
585 InstanceCallInstr* IRRegExpMacroAssembler::InstanceCall( | 584 InstanceCallInstr* IRRegExpMacroAssembler::InstanceCall( |
586 const InstanceCallDescriptor& desc, | 585 const InstanceCallDescriptor& desc, |
587 ZoneGrowableArray<PushArgumentInstr*> *arguments) const { | 586 ZoneGrowableArray<PushArgumentInstr*>* arguments) const { |
588 return | 587 return new (Z) InstanceCallInstr( |
589 new(Z) InstanceCallInstr(TokenPosition::kNoSource, | 588 TokenPosition::kNoSource, desc.name, desc.token_kind, arguments, |
590 desc.name, | 589 Object::null_array(), desc.checked_argument_count, ic_data_array_); |
591 desc.token_kind, | |
592 arguments, | |
593 Object::null_array(), | |
594 desc.checked_argument_count, | |
595 ic_data_array_); | |
596 } | 590 } |
597 | 591 |
598 | 592 |
599 LoadLocalInstr* IRRegExpMacroAssembler::LoadLocal(LocalVariable* local) const { | 593 LoadLocalInstr* IRRegExpMacroAssembler::LoadLocal(LocalVariable* local) const { |
600 return new(Z) LoadLocalInstr(*local, TokenPosition::kNoSource); | 594 return new (Z) LoadLocalInstr(*local, TokenPosition::kNoSource); |
601 } | 595 } |
602 | 596 |
603 | 597 |
604 void IRRegExpMacroAssembler::StoreLocal(LocalVariable* local, | 598 void IRRegExpMacroAssembler::StoreLocal(LocalVariable* local, Value* value) { |
605 Value* value) { | 599 Do(new (Z) StoreLocalInstr(*local, value, TokenPosition::kNoSource)); |
606 Do(new(Z) StoreLocalInstr(*local, value, TokenPosition::kNoSource)); | |
607 } | 600 } |
608 | 601 |
609 | 602 |
610 void IRRegExpMacroAssembler::set_current_instruction(Instruction* instruction) { | 603 void IRRegExpMacroAssembler::set_current_instruction(Instruction* instruction) { |
611 current_instruction_ = instruction; | 604 current_instruction_ = instruction; |
612 } | 605 } |
613 | 606 |
614 | 607 |
615 Value* IRRegExpMacroAssembler::Bind(Definition* definition) { | 608 Value* IRRegExpMacroAssembler::Bind(Definition* definition) { |
616 AppendInstruction(definition); | 609 AppendInstruction(definition); |
617 definition->set_temp_index(temp_id_.Alloc()); | 610 definition->set_temp_index(temp_id_.Alloc()); |
618 | 611 |
619 return new(Z) Value(definition); | 612 return new (Z) Value(definition); |
620 } | 613 } |
621 | 614 |
622 | 615 |
623 void IRRegExpMacroAssembler::Do(Definition* definition) { | 616 void IRRegExpMacroAssembler::Do(Definition* definition) { |
624 AppendInstruction(definition); | 617 AppendInstruction(definition); |
625 } | 618 } |
626 | 619 |
627 | 620 |
628 Value* IRRegExpMacroAssembler::BindLoadLocal(const LocalVariable& local) { | 621 Value* IRRegExpMacroAssembler::BindLoadLocal(const LocalVariable& local) { |
629 if (local.IsConst()) { | 622 if (local.IsConst()) { |
630 return Bind(new(Z) ConstantInstr(*local.ConstValue())); | 623 return Bind(new (Z) ConstantInstr(*local.ConstValue())); |
631 } | 624 } |
632 ASSERT(!local.is_captured()); | 625 ASSERT(!local.is_captured()); |
633 return Bind(new(Z) LoadLocalInstr(local, TokenPosition::kNoSource)); | 626 return Bind(new (Z) LoadLocalInstr(local, TokenPosition::kNoSource)); |
634 } | 627 } |
635 | 628 |
636 | 629 |
637 // In some cases, the V8 irregexp engine generates unreachable code by emitting | 630 // In some cases, the V8 irregexp engine generates unreachable code by emitting |
638 // a jmp not followed by a bind. We cannot do the same, since it is impossible | 631 // a jmp not followed by a bind. We cannot do the same, since it is impossible |
639 // to append to a block following a jmp. In such cases, assume that we are doing | 632 // to append to a block following a jmp. In such cases, assume that we are doing |
640 // the correct thing, but output a warning when tracing. | 633 // the correct thing, but output a warning when tracing. |
641 #define HANDLE_DEAD_CODE_EMISSION() \ | 634 #define HANDLE_DEAD_CODE_EMISSION() \ |
642 if (current_instruction_ == NULL) { \ | 635 if (current_instruction_ == NULL) { \ |
643 if (FLAG_trace_irregexp) { \ | 636 if (FLAG_trace_irregexp) { \ |
644 OS::Print("WARNING: Attempting to append to a closed assembler. " \ | 637 OS::Print( \ |
645 "This could be either a bug or generation of dead code " \ | 638 "WARNING: Attempting to append to a closed assembler. " \ |
646 "inherited from V8.\n"); \ | 639 "This could be either a bug or generation of dead code " \ |
647 } \ | 640 "inherited from V8.\n"); \ |
648 BlockLabel dummy; \ | 641 } \ |
649 BindBlock(&dummy); \ | 642 BlockLabel dummy; \ |
| 643 BindBlock(&dummy); \ |
650 } | 644 } |
651 | 645 |
652 void IRRegExpMacroAssembler::AppendInstruction(Instruction* instruction) { | 646 void IRRegExpMacroAssembler::AppendInstruction(Instruction* instruction) { |
653 HANDLE_DEAD_CODE_EMISSION(); | 647 HANDLE_DEAD_CODE_EMISSION(); |
654 | 648 |
655 ASSERT(current_instruction_ != NULL); | 649 ASSERT(current_instruction_ != NULL); |
656 ASSERT(current_instruction_->next() == NULL); | 650 ASSERT(current_instruction_->next() == NULL); |
657 | 651 |
658 temp_id_.Dealloc(instruction->InputCount()); | 652 temp_id_.Dealloc(instruction->InputCount()); |
659 arg_id_.Dealloc(instruction->ArgumentCount()); | 653 arg_id_.Dealloc(instruction->ArgumentCount()); |
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694 | 688 |
695 ASSERT(current_instruction_ != NULL); | 689 ASSERT(current_instruction_ != NULL); |
696 ASSERT(current_instruction_->next() == NULL); | 690 ASSERT(current_instruction_->next() == NULL); |
697 current_instruction_->Goto(to); | 691 current_instruction_->Goto(to); |
698 set_current_instruction(NULL); | 692 set_current_instruction(NULL); |
699 } | 693 } |
700 | 694 |
701 | 695 |
702 PushArgumentInstr* IRRegExpMacroAssembler::PushArgument(Value* value) { | 696 PushArgumentInstr* IRRegExpMacroAssembler::PushArgument(Value* value) { |
703 arg_id_.Alloc(); | 697 arg_id_.Alloc(); |
704 PushArgumentInstr* push = new(Z) PushArgumentInstr(value); | 698 PushArgumentInstr* push = new (Z) PushArgumentInstr(value); |
705 // Do *not* use Do() for push argument instructions. | 699 // Do *not* use Do() for push argument instructions. |
706 AppendInstruction(push); | 700 AppendInstruction(push); |
707 return push; | 701 return push; |
708 } | 702 } |
709 | 703 |
710 | 704 |
711 PushArgumentInstr* IRRegExpMacroAssembler::PushLocal(LocalVariable* local) { | 705 PushArgumentInstr* IRRegExpMacroAssembler::PushLocal(LocalVariable* local) { |
712 return PushArgument(Bind(LoadLocal(local))); | 706 return PushArgument(Bind(LoadLocal(local))); |
713 } | 707 } |
714 | 708 |
715 | 709 |
716 void IRRegExpMacroAssembler::Print(const char* str) { | 710 void IRRegExpMacroAssembler::Print(const char* str) { |
717 Print(PushArgument( | 711 Print(PushArgument(Bind(new (Z) ConstantInstr( |
718 Bind(new(Z) ConstantInstr( | 712 String::ZoneHandle(Z, String::New(str, Heap::kOld)))))); |
719 String::ZoneHandle(Z, String::New(str, Heap::kOld)))))); | |
720 } | 713 } |
721 | 714 |
722 | 715 |
723 void IRRegExpMacroAssembler::Print(PushArgumentInstr* argument) { | 716 void IRRegExpMacroAssembler::Print(PushArgumentInstr* argument) { |
724 const Library& lib = Library::Handle(Library::CoreLibrary()); | 717 const Library& lib = Library::Handle(Library::CoreLibrary()); |
725 const Function& print_fn = Function::ZoneHandle( | 718 const Function& print_fn = |
726 Z, lib.LookupFunctionAllowPrivate(Symbols::print())); | 719 Function::ZoneHandle(Z, lib.LookupFunctionAllowPrivate(Symbols::print())); |
727 Do(StaticCall(print_fn, argument)); | 720 Do(StaticCall(print_fn, argument)); |
728 } | 721 } |
729 | 722 |
730 | 723 |
731 void IRRegExpMacroAssembler::PrintBlocks() { | 724 void IRRegExpMacroAssembler::PrintBlocks() { |
732 for (intptr_t i = 0; i < blocks_.length(); i++) { | 725 for (intptr_t i = 0; i < blocks_.length(); i++) { |
733 FlowGraphPrinter::PrintBlock(blocks_[i], false); | 726 FlowGraphPrinter::PrintBlock(blocks_[i], false); |
734 } | 727 } |
735 } | 728 } |
736 | 729 |
737 | 730 |
738 intptr_t IRRegExpMacroAssembler::stack_limit_slack() { | 731 intptr_t IRRegExpMacroAssembler::stack_limit_slack() { |
739 return 32; | 732 return 32; |
740 } | 733 } |
741 | 734 |
742 | 735 |
743 void IRRegExpMacroAssembler::AdvanceCurrentPosition(intptr_t by) { | 736 void IRRegExpMacroAssembler::AdvanceCurrentPosition(intptr_t by) { |
744 TAG(); | 737 TAG(); |
745 if (by != 0) { | 738 if (by != 0) { |
746 PushArgumentInstr* cur_pos_push = PushLocal(current_position_); | 739 PushArgumentInstr* cur_pos_push = PushLocal(current_position_); |
747 PushArgumentInstr* by_push = PushArgument(Bind(Int64Constant(by))); | 740 PushArgumentInstr* by_push = PushArgument(Bind(Int64Constant(by))); |
748 | 741 |
(...skipping 48 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
797 intptr_t IRRegExpMacroAssembler::GetNextLocalIndex() { | 790 intptr_t IRRegExpMacroAssembler::GetNextLocalIndex() { |
798 intptr_t id = local_id_.Alloc(); | 791 intptr_t id = local_id_.Alloc(); |
799 return kFirstLocalSlotFromFp - id; | 792 return kFirstLocalSlotFromFp - id; |
800 } | 793 } |
801 | 794 |
802 | 795 |
803 Value* IRRegExpMacroAssembler::LoadRegister(intptr_t index) { | 796 Value* IRRegExpMacroAssembler::LoadRegister(intptr_t index) { |
804 PushArgumentInstr* registers_push = PushLocal(registers_); | 797 PushArgumentInstr* registers_push = PushLocal(registers_); |
805 PushArgumentInstr* index_push = PushRegisterIndex(index); | 798 PushArgumentInstr* index_push = PushRegisterIndex(index); |
806 return Bind(InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), | 799 return Bind(InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), |
807 registers_push, | 800 registers_push, index_push)); |
808 index_push)); | |
809 } | 801 } |
810 | 802 |
811 void IRRegExpMacroAssembler::StoreRegister(intptr_t index, intptr_t value) { | 803 void IRRegExpMacroAssembler::StoreRegister(intptr_t index, intptr_t value) { |
812 PushArgumentInstr* registers_push = PushLocal(registers_); | 804 PushArgumentInstr* registers_push = PushLocal(registers_); |
813 PushArgumentInstr* index_push = PushRegisterIndex(index); | 805 PushArgumentInstr* index_push = PushRegisterIndex(index); |
814 PushArgumentInstr* value_push = PushArgument(Bind(Uint64Constant(value))); | 806 PushArgumentInstr* value_push = PushArgument(Bind(Uint64Constant(value))); |
815 StoreRegister(registers_push, index_push, value_push); | 807 StoreRegister(registers_push, index_push, value_push); |
816 } | 808 } |
817 | 809 |
818 | 810 |
819 void IRRegExpMacroAssembler::StoreRegister(PushArgumentInstr* registers, | 811 void IRRegExpMacroAssembler::StoreRegister(PushArgumentInstr* registers, |
820 PushArgumentInstr* index, | 812 PushArgumentInstr* index, |
821 PushArgumentInstr* value) { | 813 PushArgumentInstr* value) { |
822 TAG(); | 814 TAG(); |
823 Do(InstanceCall(InstanceCallDescriptor::FromToken(Token::kASSIGN_INDEX), | 815 Do(InstanceCall(InstanceCallDescriptor::FromToken(Token::kASSIGN_INDEX), |
824 registers, | 816 registers, index, value)); |
825 index, | |
826 value)); | |
827 } | 817 } |
828 | 818 |
829 PushArgumentInstr* IRRegExpMacroAssembler::PushRegisterIndex(intptr_t index) { | 819 PushArgumentInstr* IRRegExpMacroAssembler::PushRegisterIndex(intptr_t index) { |
830 if (registers_count_ <= index) { | 820 if (registers_count_ <= index) { |
831 registers_count_ = index + 1; | 821 registers_count_ = index + 1; |
832 } | 822 } |
833 return PushArgument(Bind(Uint64Constant(index))); | 823 return PushArgument(Bind(Uint64Constant(index))); |
834 } | 824 } |
835 | 825 |
836 | 826 |
837 void IRRegExpMacroAssembler::CheckCharacter(uint32_t c, BlockLabel* on_equal) { | 827 void IRRegExpMacroAssembler::CheckCharacter(uint32_t c, BlockLabel* on_equal) { |
838 TAG(); | 828 TAG(); |
839 Definition* cur_char_def = LoadLocal(current_character_); | 829 Definition* cur_char_def = LoadLocal(current_character_); |
840 Definition* char_def = Uint64Constant(c); | 830 Definition* char_def = Uint64Constant(c); |
841 | 831 |
842 BranchOrBacktrack(Comparison(kEQ, cur_char_def, char_def), on_equal); | 832 BranchOrBacktrack(Comparison(kEQ, cur_char_def, char_def), on_equal); |
843 } | 833 } |
844 | 834 |
845 | 835 |
846 void IRRegExpMacroAssembler::CheckCharacterGT(uint16_t limit, | 836 void IRRegExpMacroAssembler::CheckCharacterGT(uint16_t limit, |
847 BlockLabel* on_greater) { | 837 BlockLabel* on_greater) { |
848 TAG(); | 838 TAG(); |
849 BranchOrBacktrack(Comparison(kGT, | 839 BranchOrBacktrack( |
850 LoadLocal(current_character_), | 840 Comparison(kGT, LoadLocal(current_character_), Uint64Constant(limit)), |
851 Uint64Constant(limit)), | 841 on_greater); |
852 on_greater); | |
853 } | 842 } |
854 | 843 |
855 | 844 |
856 void IRRegExpMacroAssembler::CheckAtStart(BlockLabel* on_at_start) { | 845 void IRRegExpMacroAssembler::CheckAtStart(BlockLabel* on_at_start) { |
857 TAG(); | 846 TAG(); |
858 | 847 |
859 BlockLabel not_at_start; | 848 BlockLabel not_at_start; |
860 | 849 |
861 // Did we start the match at the start of the string at all? | 850 // Did we start the match at the start of the string at all? |
862 BranchOrBacktrack(Comparison(kNE, | 851 BranchOrBacktrack( |
863 LoadLocal(start_index_param_), | 852 Comparison(kNE, LoadLocal(start_index_param_), Uint64Constant(0)), |
864 Uint64Constant(0)), | 853 ¬_at_start); |
865 ¬_at_start); | |
866 | 854 |
867 // If we did, are we still at the start of the input, i.e. is | 855 // If we did, are we still at the start of the input, i.e. is |
868 // (offset == string_length * -1)? | 856 // (offset == string_length * -1)? |
869 Definition* neg_len_def = | 857 Definition* neg_len_def = |
870 InstanceCall(InstanceCallDescriptor::FromToken(Token::kNEGATE), | 858 InstanceCall(InstanceCallDescriptor::FromToken(Token::kNEGATE), |
871 PushLocal(string_param_length_)); | 859 PushLocal(string_param_length_)); |
872 Definition* offset_def = LoadLocal(current_position_); | 860 Definition* offset_def = LoadLocal(current_position_); |
873 BranchOrBacktrack(Comparison(kEQ, neg_len_def, offset_def), | 861 BranchOrBacktrack(Comparison(kEQ, neg_len_def, offset_def), on_at_start); |
874 on_at_start); | |
875 | 862 |
876 BindBlock(¬_at_start); | 863 BindBlock(¬_at_start); |
877 } | 864 } |
878 | 865 |
879 | 866 |
880 void IRRegExpMacroAssembler::CheckNotAtStart(BlockLabel* on_not_at_start) { | 867 void IRRegExpMacroAssembler::CheckNotAtStart(BlockLabel* on_not_at_start) { |
881 TAG(); | 868 TAG(); |
882 | 869 |
883 // Did we start the match at the start of the string at all? | 870 // Did we start the match at the start of the string at all? |
884 BranchOrBacktrack(Comparison(kNE, | 871 BranchOrBacktrack( |
885 LoadLocal(start_index_param_), | 872 Comparison(kNE, LoadLocal(start_index_param_), Uint64Constant(0)), |
886 Uint64Constant(0)), | 873 on_not_at_start); |
887 on_not_at_start); | |
888 | 874 |
889 // If we did, are we still at the start of the input, i.e. is | 875 // If we did, are we still at the start of the input, i.e. is |
890 // (offset == string_length * -1)? | 876 // (offset == string_length * -1)? |
891 Definition* neg_len_def = | 877 Definition* neg_len_def = |
892 InstanceCall(InstanceCallDescriptor::FromToken(Token::kNEGATE), | 878 InstanceCall(InstanceCallDescriptor::FromToken(Token::kNEGATE), |
893 PushLocal(string_param_length_)); | 879 PushLocal(string_param_length_)); |
894 Definition* offset_def = LoadLocal(current_position_); | 880 Definition* offset_def = LoadLocal(current_position_); |
895 BranchOrBacktrack(Comparison(kNE, neg_len_def, offset_def), | 881 BranchOrBacktrack(Comparison(kNE, neg_len_def, offset_def), on_not_at_start); |
896 on_not_at_start); | |
897 } | 882 } |
898 | 883 |
899 | 884 |
900 void IRRegExpMacroAssembler::CheckCharacterLT(uint16_t limit, | 885 void IRRegExpMacroAssembler::CheckCharacterLT(uint16_t limit, |
901 BlockLabel* on_less) { | 886 BlockLabel* on_less) { |
902 TAG(); | 887 TAG(); |
903 BranchOrBacktrack(Comparison(kLT, | 888 BranchOrBacktrack( |
904 LoadLocal(current_character_), | 889 Comparison(kLT, LoadLocal(current_character_), Uint64Constant(limit)), |
905 Uint64Constant(limit)), | 890 on_less); |
906 on_less); | |
907 } | 891 } |
908 | 892 |
909 | 893 |
910 void IRRegExpMacroAssembler::CheckGreedyLoop(BlockLabel* on_equal) { | 894 void IRRegExpMacroAssembler::CheckGreedyLoop(BlockLabel* on_equal) { |
911 TAG(); | 895 TAG(); |
912 | 896 |
913 BlockLabel fallthrough; | 897 BlockLabel fallthrough; |
914 | 898 |
915 Definition* head = PeekStack(); | 899 Definition* head = PeekStack(); |
916 Definition* cur_pos_def = LoadLocal(current_position_); | 900 Definition* cur_pos_def = LoadLocal(current_position_); |
917 BranchOrBacktrack(Comparison(kNE, head, cur_pos_def), | 901 BranchOrBacktrack(Comparison(kNE, head, cur_pos_def), &fallthrough); |
918 &fallthrough); | |
919 | 902 |
920 // Pop, throwing away the value. | 903 // Pop, throwing away the value. |
921 Do(PopStack()); | 904 Do(PopStack()); |
922 | 905 |
923 BranchOrBacktrack(NULL, on_equal); | 906 BranchOrBacktrack(NULL, on_equal); |
924 | 907 |
925 BindBlock(&fallthrough); | 908 BindBlock(&fallthrough); |
926 } | 909 } |
927 | 910 |
928 | 911 |
929 void IRRegExpMacroAssembler::CheckNotBackReferenceIgnoreCase( | 912 void IRRegExpMacroAssembler::CheckNotBackReferenceIgnoreCase( |
930 intptr_t start_reg, | 913 intptr_t start_reg, |
931 BlockLabel* on_no_match) { | 914 BlockLabel* on_no_match) { |
932 TAG(); | 915 TAG(); |
933 ASSERT(start_reg + 1 <= registers_count_); | 916 ASSERT(start_reg + 1 <= registers_count_); |
934 | 917 |
935 BlockLabel fallthrough; | 918 BlockLabel fallthrough; |
936 | 919 |
937 PushArgumentInstr* end_push = PushArgument(LoadRegister(start_reg + 1)); | 920 PushArgumentInstr* end_push = PushArgument(LoadRegister(start_reg + 1)); |
938 PushArgumentInstr* start_push = PushArgument(LoadRegister(start_reg)); | 921 PushArgumentInstr* start_push = PushArgument(LoadRegister(start_reg)); |
939 StoreLocal(capture_length_, Bind(Sub(end_push, start_push))); | 922 StoreLocal(capture_length_, Bind(Sub(end_push, start_push))); |
940 | 923 |
941 // The length of a capture should not be negative. This can only happen | 924 // The length of a capture should not be negative. This can only happen |
942 // if the end of the capture is unrecorded, or at a point earlier than | 925 // if the end of the capture is unrecorded, or at a point earlier than |
943 // the start of the capture. | 926 // the start of the capture. |
944 // BranchOrBacktrack(less, on_no_match); | 927 // BranchOrBacktrack(less, on_no_match); |
945 | 928 |
946 BranchOrBacktrack(Comparison(kLT, | 929 BranchOrBacktrack( |
947 LoadLocal(capture_length_), | 930 Comparison(kLT, LoadLocal(capture_length_), Uint64Constant(0)), |
948 Uint64Constant(0)), | 931 on_no_match); |
949 on_no_match); | |
950 | 932 |
951 // If length is zero, either the capture is empty or it is completely | 933 // If length is zero, either the capture is empty or it is completely |
952 // uncaptured. In either case succeed immediately. | 934 // uncaptured. In either case succeed immediately. |
953 BranchOrBacktrack(Comparison(kEQ, | 935 BranchOrBacktrack( |
954 LoadLocal(capture_length_), | 936 Comparison(kEQ, LoadLocal(capture_length_), Uint64Constant(0)), |
955 Uint64Constant(0)), | 937 &fallthrough); |
956 &fallthrough); | |
957 | 938 |
958 | 939 |
959 // Check that there are sufficient characters left in the input. | 940 // Check that there are sufficient characters left in the input. |
960 PushArgumentInstr* pos_push = PushLocal(current_position_); | 941 PushArgumentInstr* pos_push = PushLocal(current_position_); |
961 PushArgumentInstr* len_push = PushLocal(capture_length_); | 942 PushArgumentInstr* len_push = PushLocal(capture_length_); |
962 BranchOrBacktrack( | 943 BranchOrBacktrack( |
963 Comparison(kGT, | 944 Comparison(kGT, |
964 InstanceCall(InstanceCallDescriptor::FromToken(Token::kADD), | 945 InstanceCall(InstanceCallDescriptor::FromToken(Token::kADD), |
965 pos_push, | 946 pos_push, len_push), |
966 len_push), | 947 Uint64Constant(0)), |
967 Uint64Constant(0)), | 948 on_no_match); |
968 on_no_match); | |
969 | 949 |
970 pos_push = PushLocal(current_position_); | 950 pos_push = PushLocal(current_position_); |
971 len_push = PushLocal(string_param_length_); | 951 len_push = PushLocal(string_param_length_); |
972 StoreLocal(match_start_index_, Bind(Add(pos_push, len_push))); | 952 StoreLocal(match_start_index_, Bind(Add(pos_push, len_push))); |
973 | 953 |
974 pos_push = PushArgument(LoadRegister(start_reg)); | 954 pos_push = PushArgument(LoadRegister(start_reg)); |
975 len_push = PushLocal(string_param_length_); | 955 len_push = PushLocal(string_param_length_); |
976 StoreLocal(capture_start_index_, Bind(Add(pos_push, len_push))); | 956 StoreLocal(capture_start_index_, Bind(Add(pos_push, len_push))); |
977 | 957 |
978 pos_push = PushLocal(match_start_index_); | 958 pos_push = PushLocal(match_start_index_); |
979 len_push = PushLocal(capture_length_); | 959 len_push = PushLocal(capture_length_); |
980 StoreLocal(match_end_index_, Bind(Add(pos_push, len_push))); | 960 StoreLocal(match_end_index_, Bind(Add(pos_push, len_push))); |
981 | 961 |
982 BlockLabel success; | 962 BlockLabel success; |
983 if (mode_ == ASCII) { | 963 if (mode_ == ASCII) { |
984 BlockLabel loop_increment; | 964 BlockLabel loop_increment; |
985 BlockLabel loop; | 965 BlockLabel loop; |
986 BindBlock(&loop); | 966 BindBlock(&loop); |
987 | 967 |
988 StoreLocal(char_in_capture_, CharacterAt(capture_start_index_)); | 968 StoreLocal(char_in_capture_, CharacterAt(capture_start_index_)); |
989 StoreLocal(char_in_match_, CharacterAt(match_start_index_)); | 969 StoreLocal(char_in_match_, CharacterAt(match_start_index_)); |
990 | 970 |
991 BranchOrBacktrack(Comparison(kEQ, | 971 BranchOrBacktrack( |
992 LoadLocal(char_in_capture_), | 972 Comparison(kEQ, LoadLocal(char_in_capture_), LoadLocal(char_in_match_)), |
993 LoadLocal(char_in_match_)), | 973 &loop_increment); |
994 &loop_increment); | |
995 | 974 |
996 // Mismatch, try case-insensitive match (converting letters to lower-case). | 975 // Mismatch, try case-insensitive match (converting letters to lower-case). |
997 PushArgumentInstr* match_char_push = PushLocal(char_in_match_); | 976 PushArgumentInstr* match_char_push = PushLocal(char_in_match_); |
998 PushArgumentInstr* mask_push = PushArgument(Bind(Uint64Constant(0x20))); | 977 PushArgumentInstr* mask_push = PushArgument(Bind(Uint64Constant(0x20))); |
999 StoreLocal(char_in_match_, | 978 StoreLocal( |
1000 Bind(InstanceCall( | 979 char_in_match_, |
1001 InstanceCallDescriptor::FromToken(Token::kBIT_OR), | 980 Bind(InstanceCall(InstanceCallDescriptor::FromToken(Token::kBIT_OR), |
1002 match_char_push, | 981 match_char_push, mask_push))); |
1003 mask_push))); | |
1004 | 982 |
1005 BlockLabel convert_capture; | 983 BlockLabel convert_capture; |
1006 BlockLabel on_not_in_range; | 984 BlockLabel on_not_in_range; |
1007 BranchOrBacktrack(Comparison(kLT, | 985 BranchOrBacktrack( |
1008 LoadLocal(char_in_match_), | 986 Comparison(kLT, LoadLocal(char_in_match_), Uint64Constant('a')), |
1009 Uint64Constant('a')), | 987 &on_not_in_range); |
1010 &on_not_in_range); | 988 BranchOrBacktrack( |
1011 BranchOrBacktrack(Comparison(kGT, | 989 Comparison(kGT, LoadLocal(char_in_match_), Uint64Constant('z')), |
1012 LoadLocal(char_in_match_), | 990 &on_not_in_range); |
1013 Uint64Constant('z')), | |
1014 &on_not_in_range); | |
1015 GoTo(&convert_capture); | 991 GoTo(&convert_capture); |
1016 BindBlock(&on_not_in_range); | 992 BindBlock(&on_not_in_range); |
1017 | 993 |
1018 // Latin-1: Check for values in range [224,254] but not 247. | 994 // Latin-1: Check for values in range [224,254] but not 247. |
1019 BranchOrBacktrack(Comparison(kLT, | 995 BranchOrBacktrack( |
1020 LoadLocal(char_in_match_), | 996 Comparison(kLT, LoadLocal(char_in_match_), Uint64Constant(224)), |
1021 Uint64Constant(224)), | 997 on_no_match); |
1022 on_no_match); | 998 BranchOrBacktrack( |
1023 BranchOrBacktrack(Comparison(kGT, | 999 Comparison(kGT, LoadLocal(char_in_match_), Uint64Constant(254)), |
1024 LoadLocal(char_in_match_), | 1000 on_no_match); |
1025 Uint64Constant(254)), | |
1026 on_no_match); | |
1027 | 1001 |
1028 BranchOrBacktrack(Comparison(kEQ, | 1002 BranchOrBacktrack( |
1029 LoadLocal(char_in_match_), | 1003 Comparison(kEQ, LoadLocal(char_in_match_), Uint64Constant(247)), |
1030 Uint64Constant(247)), | 1004 on_no_match); |
1031 on_no_match); | |
1032 | 1005 |
1033 // Also convert capture character. | 1006 // Also convert capture character. |
1034 BindBlock(&convert_capture); | 1007 BindBlock(&convert_capture); |
1035 | 1008 |
1036 PushArgumentInstr* capture_char_push = PushLocal(char_in_capture_); | 1009 PushArgumentInstr* capture_char_push = PushLocal(char_in_capture_); |
1037 mask_push = PushArgument(Bind(Uint64Constant(0x20))); | 1010 mask_push = PushArgument(Bind(Uint64Constant(0x20))); |
1038 StoreLocal(char_in_capture_, | 1011 StoreLocal( |
1039 Bind(InstanceCall( | 1012 char_in_capture_, |
1040 InstanceCallDescriptor::FromToken(Token::kBIT_OR), | 1013 Bind(InstanceCall(InstanceCallDescriptor::FromToken(Token::kBIT_OR), |
1041 capture_char_push, | 1014 capture_char_push, mask_push))); |
1042 mask_push))); | |
1043 | 1015 |
1044 BranchOrBacktrack(Comparison(kNE, | 1016 BranchOrBacktrack( |
1045 LoadLocal(char_in_match_), | 1017 Comparison(kNE, LoadLocal(char_in_match_), LoadLocal(char_in_capture_)), |
1046 LoadLocal(char_in_capture_)), | 1018 on_no_match); |
1047 on_no_match); | |
1048 | 1019 |
1049 BindBlock(&loop_increment); | 1020 BindBlock(&loop_increment); |
1050 | 1021 |
1051 // Increment indexes into capture and match strings. | 1022 // Increment indexes into capture and match strings. |
1052 PushArgumentInstr* index_push = PushLocal(capture_start_index_); | 1023 PushArgumentInstr* index_push = PushLocal(capture_start_index_); |
1053 PushArgumentInstr* inc_push = PushArgument(Bind(Uint64Constant(1))); | 1024 PushArgumentInstr* inc_push = PushArgument(Bind(Uint64Constant(1))); |
1054 StoreLocal(capture_start_index_, Bind(Add(index_push, inc_push))); | 1025 StoreLocal(capture_start_index_, Bind(Add(index_push, inc_push))); |
1055 | 1026 |
1056 index_push = PushLocal(match_start_index_); | 1027 index_push = PushLocal(match_start_index_); |
1057 inc_push = PushArgument(Bind(Uint64Constant(1))); | 1028 inc_push = PushArgument(Bind(Uint64Constant(1))); |
1058 StoreLocal(match_start_index_, Bind(Add(index_push, inc_push))); | 1029 StoreLocal(match_start_index_, Bind(Add(index_push, inc_push))); |
1059 | 1030 |
1060 // Compare to end of match, and loop if not done. | 1031 // Compare to end of match, and loop if not done. |
1061 BranchOrBacktrack(Comparison(kLT, | 1032 BranchOrBacktrack(Comparison(kLT, LoadLocal(match_start_index_), |
1062 LoadLocal(match_start_index_), | |
1063 LoadLocal(match_end_index_)), | 1033 LoadLocal(match_end_index_)), |
1064 &loop); | 1034 &loop); |
1065 } else { | 1035 } else { |
1066 ASSERT(mode_ == UC16); | 1036 ASSERT(mode_ == UC16); |
1067 | 1037 |
1068 Value* string_value = Bind(LoadLocal(string_param_)); | 1038 Value* string_value = Bind(LoadLocal(string_param_)); |
1069 Value* lhs_index_value = Bind(LoadLocal(match_start_index_)); | 1039 Value* lhs_index_value = Bind(LoadLocal(match_start_index_)); |
1070 Value* rhs_index_value = Bind(LoadLocal(capture_start_index_)); | 1040 Value* rhs_index_value = Bind(LoadLocal(capture_start_index_)); |
1071 Value* length_value = Bind(LoadLocal(capture_length_)); | 1041 Value* length_value = Bind(LoadLocal(capture_length_)); |
1072 | 1042 |
1073 Definition* is_match_def = | 1043 Definition* is_match_def = new (Z) CaseInsensitiveCompareUC16Instr( |
1074 new(Z) CaseInsensitiveCompareUC16Instr( | 1044 string_value, lhs_index_value, rhs_index_value, length_value, |
1075 string_value, | 1045 specialization_cid_); |
1076 lhs_index_value, | |
1077 rhs_index_value, | |
1078 length_value, | |
1079 specialization_cid_); | |
1080 | 1046 |
1081 BranchOrBacktrack(Comparison(kNE, is_match_def, BoolConstant(true)), | 1047 BranchOrBacktrack(Comparison(kNE, is_match_def, BoolConstant(true)), |
1082 on_no_match); | 1048 on_no_match); |
1083 } | 1049 } |
1084 | 1050 |
1085 BindBlock(&success); | 1051 BindBlock(&success); |
1086 | 1052 |
1087 // Move current character position to position after match. | 1053 // Move current character position to position after match. |
1088 PushArgumentInstr* match_end_push = PushLocal(match_end_index_); | 1054 PushArgumentInstr* match_end_push = PushLocal(match_end_index_); |
1089 len_push = PushLocal(string_param_length_); | 1055 len_push = PushLocal(string_param_length_); |
1090 StoreLocal(current_position_, Bind(Sub(match_end_push, len_push))); | 1056 StoreLocal(current_position_, Bind(Sub(match_end_push, len_push))); |
1091 | 1057 |
1092 BindBlock(&fallthrough); | 1058 BindBlock(&fallthrough); |
1093 } | 1059 } |
1094 | 1060 |
1095 | 1061 |
1096 void IRRegExpMacroAssembler::CheckNotBackReference( | 1062 void IRRegExpMacroAssembler::CheckNotBackReference(intptr_t start_reg, |
1097 intptr_t start_reg, | 1063 BlockLabel* on_no_match) { |
1098 BlockLabel* on_no_match) { | |
1099 TAG(); | 1064 TAG(); |
1100 ASSERT(start_reg + 1 <= registers_count_); | 1065 ASSERT(start_reg + 1 <= registers_count_); |
1101 | 1066 |
1102 BlockLabel fallthrough; | 1067 BlockLabel fallthrough; |
1103 BlockLabel success; | 1068 BlockLabel success; |
1104 | 1069 |
1105 // Find length of back-referenced capture. | 1070 // Find length of back-referenced capture. |
1106 PushArgumentInstr* end_push = PushArgument(LoadRegister(start_reg + 1)); | 1071 PushArgumentInstr* end_push = PushArgument(LoadRegister(start_reg + 1)); |
1107 PushArgumentInstr* start_push = PushArgument(LoadRegister(start_reg)); | 1072 PushArgumentInstr* start_push = PushArgument(LoadRegister(start_reg)); |
1108 StoreLocal(capture_length_, Bind(Sub(end_push, start_push))); | 1073 StoreLocal(capture_length_, Bind(Sub(end_push, start_push))); |
1109 | 1074 |
1110 // Fail on partial or illegal capture (start of capture after end of capture). | 1075 // Fail on partial or illegal capture (start of capture after end of capture). |
1111 BranchOrBacktrack(Comparison(kLT, | 1076 BranchOrBacktrack( |
1112 LoadLocal(capture_length_), | 1077 Comparison(kLT, LoadLocal(capture_length_), Uint64Constant(0)), |
1113 Uint64Constant(0)), | 1078 on_no_match); |
1114 on_no_match); | |
1115 | 1079 |
1116 // Succeed on empty capture (including no capture) | 1080 // Succeed on empty capture (including no capture) |
1117 BranchOrBacktrack(Comparison(kEQ, | 1081 BranchOrBacktrack( |
1118 LoadLocal(capture_length_), | 1082 Comparison(kEQ, LoadLocal(capture_length_), Uint64Constant(0)), |
1119 Uint64Constant(0)), | 1083 &fallthrough); |
1120 &fallthrough); | |
1121 | 1084 |
1122 // Check that there are sufficient characters left in the input. | 1085 // Check that there are sufficient characters left in the input. |
1123 PushArgumentInstr* pos_push = PushLocal(current_position_); | 1086 PushArgumentInstr* pos_push = PushLocal(current_position_); |
1124 PushArgumentInstr* len_push = PushLocal(capture_length_); | 1087 PushArgumentInstr* len_push = PushLocal(capture_length_); |
1125 BranchOrBacktrack( | 1088 BranchOrBacktrack( |
1126 Comparison(kGT, | 1089 Comparison(kGT, |
1127 InstanceCall(InstanceCallDescriptor::FromToken(Token::kADD), | 1090 InstanceCall(InstanceCallDescriptor::FromToken(Token::kADD), |
1128 pos_push, | 1091 pos_push, len_push), |
1129 len_push), | 1092 Uint64Constant(0)), |
1130 Uint64Constant(0)), | 1093 on_no_match); |
1131 on_no_match); | |
1132 | 1094 |
1133 // Compute pointers to match string and capture string. | 1095 // Compute pointers to match string and capture string. |
1134 pos_push = PushLocal(current_position_); | 1096 pos_push = PushLocal(current_position_); |
1135 len_push = PushLocal(string_param_length_); | 1097 len_push = PushLocal(string_param_length_); |
1136 StoreLocal(match_start_index_, Bind(Add(pos_push, len_push))); | 1098 StoreLocal(match_start_index_, Bind(Add(pos_push, len_push))); |
1137 | 1099 |
1138 pos_push = PushArgument(LoadRegister(start_reg)); | 1100 pos_push = PushArgument(LoadRegister(start_reg)); |
1139 len_push = PushLocal(string_param_length_); | 1101 len_push = PushLocal(string_param_length_); |
1140 StoreLocal(capture_start_index_, Bind(Add(pos_push, len_push))); | 1102 StoreLocal(capture_start_index_, Bind(Add(pos_push, len_push))); |
1141 | 1103 |
1142 pos_push = PushLocal(match_start_index_); | 1104 pos_push = PushLocal(match_start_index_); |
1143 len_push = PushLocal(capture_length_); | 1105 len_push = PushLocal(capture_length_); |
1144 StoreLocal(match_end_index_, Bind(Add(pos_push, len_push))); | 1106 StoreLocal(match_end_index_, Bind(Add(pos_push, len_push))); |
1145 | 1107 |
1146 BlockLabel loop; | 1108 BlockLabel loop; |
1147 BindBlock(&loop); | 1109 BindBlock(&loop); |
1148 | 1110 |
1149 StoreLocal(char_in_capture_, CharacterAt(capture_start_index_)); | 1111 StoreLocal(char_in_capture_, CharacterAt(capture_start_index_)); |
1150 StoreLocal(char_in_match_, CharacterAt(match_start_index_)); | 1112 StoreLocal(char_in_match_, CharacterAt(match_start_index_)); |
1151 | 1113 |
1152 BranchOrBacktrack(Comparison(kNE, | 1114 BranchOrBacktrack( |
1153 LoadLocal(char_in_capture_), | 1115 Comparison(kNE, LoadLocal(char_in_capture_), LoadLocal(char_in_match_)), |
1154 LoadLocal(char_in_match_)), | 1116 on_no_match); |
1155 on_no_match); | |
1156 | 1117 |
1157 // Increment indexes into capture and match strings. | 1118 // Increment indexes into capture and match strings. |
1158 PushArgumentInstr* index_push = PushLocal(capture_start_index_); | 1119 PushArgumentInstr* index_push = PushLocal(capture_start_index_); |
1159 PushArgumentInstr* inc_push = PushArgument(Bind(Uint64Constant(1))); | 1120 PushArgumentInstr* inc_push = PushArgument(Bind(Uint64Constant(1))); |
1160 StoreLocal(capture_start_index_, Bind(Add(index_push, inc_push))); | 1121 StoreLocal(capture_start_index_, Bind(Add(index_push, inc_push))); |
1161 | 1122 |
1162 index_push = PushLocal(match_start_index_); | 1123 index_push = PushLocal(match_start_index_); |
1163 inc_push = PushArgument(Bind(Uint64Constant(1))); | 1124 inc_push = PushArgument(Bind(Uint64Constant(1))); |
1164 StoreLocal(match_start_index_, Bind(Add(index_push, inc_push))); | 1125 StoreLocal(match_start_index_, Bind(Add(index_push, inc_push))); |
1165 | 1126 |
1166 // Check if we have reached end of match area. | 1127 // Check if we have reached end of match area. |
1167 BranchOrBacktrack(Comparison(kLT, | 1128 BranchOrBacktrack(Comparison(kLT, LoadLocal(match_start_index_), |
1168 LoadLocal(match_start_index_), | |
1169 LoadLocal(match_end_index_)), | 1129 LoadLocal(match_end_index_)), |
1170 &loop); | 1130 &loop); |
1171 | 1131 |
1172 BindBlock(&success); | 1132 BindBlock(&success); |
1173 | 1133 |
1174 // Move current character position to position after match. | 1134 // Move current character position to position after match. |
1175 PushArgumentInstr* match_end_push = PushLocal(match_end_index_); | 1135 PushArgumentInstr* match_end_push = PushLocal(match_end_index_); |
1176 len_push = PushLocal(string_param_length_); | 1136 len_push = PushLocal(string_param_length_); |
1177 StoreLocal(current_position_, Bind(Sub(match_end_push, len_push))); | 1137 StoreLocal(current_position_, Bind(Sub(match_end_push, len_push))); |
1178 | 1138 |
1179 BindBlock(&fallthrough); | 1139 BindBlock(&fallthrough); |
1180 } | 1140 } |
1181 | 1141 |
1182 | 1142 |
1183 void IRRegExpMacroAssembler::CheckNotCharacter(uint32_t c, | 1143 void IRRegExpMacroAssembler::CheckNotCharacter(uint32_t c, |
1184 BlockLabel* on_not_equal) { | 1144 BlockLabel* on_not_equal) { |
1185 TAG(); | 1145 TAG(); |
1186 BranchOrBacktrack(Comparison(kNE, | 1146 BranchOrBacktrack( |
1187 LoadLocal(current_character_), | 1147 Comparison(kNE, LoadLocal(current_character_), Uint64Constant(c)), |
1188 Uint64Constant(c)), | 1148 on_not_equal); |
1189 on_not_equal); | |
1190 } | 1149 } |
1191 | 1150 |
1192 | 1151 |
1193 void IRRegExpMacroAssembler::CheckCharacterAfterAnd(uint32_t c, | 1152 void IRRegExpMacroAssembler::CheckCharacterAfterAnd(uint32_t c, |
1194 uint32_t mask, | 1153 uint32_t mask, |
1195 BlockLabel* on_equal) { | 1154 BlockLabel* on_equal) { |
1196 TAG(); | 1155 TAG(); |
1197 | 1156 |
1198 Definition* actual_def = LoadLocal(current_character_); | 1157 Definition* actual_def = LoadLocal(current_character_); |
1199 Definition* expected_def = Uint64Constant(c); | 1158 Definition* expected_def = Uint64Constant(c); |
1200 | 1159 |
1201 PushArgumentInstr* actual_push = PushArgument(Bind(actual_def)); | 1160 PushArgumentInstr* actual_push = PushArgument(Bind(actual_def)); |
1202 PushArgumentInstr* mask_push = PushArgument(Bind(Uint64Constant(mask))); | 1161 PushArgumentInstr* mask_push = PushArgument(Bind(Uint64Constant(mask))); |
1203 actual_def = InstanceCall(InstanceCallDescriptor::FromToken(Token::kBIT_AND), | 1162 actual_def = InstanceCall(InstanceCallDescriptor::FromToken(Token::kBIT_AND), |
1204 actual_push, | 1163 actual_push, mask_push); |
1205 mask_push); | |
1206 | 1164 |
1207 BranchOrBacktrack(Comparison(kEQ, actual_def, expected_def), on_equal); | 1165 BranchOrBacktrack(Comparison(kEQ, actual_def, expected_def), on_equal); |
1208 } | 1166 } |
1209 | 1167 |
1210 | 1168 |
1211 void IRRegExpMacroAssembler::CheckNotCharacterAfterAnd( | 1169 void IRRegExpMacroAssembler::CheckNotCharacterAfterAnd( |
1212 uint32_t c, | 1170 uint32_t c, |
1213 uint32_t mask, | 1171 uint32_t mask, |
1214 BlockLabel* on_not_equal) { | 1172 BlockLabel* on_not_equal) { |
1215 TAG(); | 1173 TAG(); |
1216 | 1174 |
1217 Definition* actual_def = LoadLocal(current_character_); | 1175 Definition* actual_def = LoadLocal(current_character_); |
1218 Definition* expected_def = Uint64Constant(c); | 1176 Definition* expected_def = Uint64Constant(c); |
1219 | 1177 |
1220 PushArgumentInstr* actual_push = PushArgument(Bind(actual_def)); | 1178 PushArgumentInstr* actual_push = PushArgument(Bind(actual_def)); |
1221 PushArgumentInstr* mask_push = PushArgument(Bind(Uint64Constant(mask))); | 1179 PushArgumentInstr* mask_push = PushArgument(Bind(Uint64Constant(mask))); |
1222 actual_def = InstanceCall(InstanceCallDescriptor::FromToken(Token::kBIT_AND), | 1180 actual_def = InstanceCall(InstanceCallDescriptor::FromToken(Token::kBIT_AND), |
1223 actual_push, | 1181 actual_push, mask_push); |
1224 mask_push); | |
1225 | 1182 |
1226 BranchOrBacktrack(Comparison(kNE, actual_def, expected_def), on_not_equal); | 1183 BranchOrBacktrack(Comparison(kNE, actual_def, expected_def), on_not_equal); |
1227 } | 1184 } |
1228 | 1185 |
1229 | 1186 |
1230 void IRRegExpMacroAssembler::CheckNotCharacterAfterMinusAnd( | 1187 void IRRegExpMacroAssembler::CheckNotCharacterAfterMinusAnd( |
1231 uint16_t c, | 1188 uint16_t c, |
1232 uint16_t minus, | 1189 uint16_t minus, |
1233 uint16_t mask, | 1190 uint16_t mask, |
1234 BlockLabel* on_not_equal) { | 1191 BlockLabel* on_not_equal) { |
1235 TAG(); | 1192 TAG(); |
1236 ASSERT(minus < Utf16::kMaxCodeUnit); // NOLINT | 1193 ASSERT(minus < Utf16::kMaxCodeUnit); // NOLINT |
1237 | 1194 |
1238 Definition* actual_def = LoadLocal(current_character_); | 1195 Definition* actual_def = LoadLocal(current_character_); |
1239 Definition* expected_def = Uint64Constant(c); | 1196 Definition* expected_def = Uint64Constant(c); |
1240 | 1197 |
1241 PushArgumentInstr* actual_push = PushArgument(Bind(actual_def)); | 1198 PushArgumentInstr* actual_push = PushArgument(Bind(actual_def)); |
1242 PushArgumentInstr* minus_push = PushArgument(Bind(Uint64Constant(minus))); | 1199 PushArgumentInstr* minus_push = PushArgument(Bind(Uint64Constant(minus))); |
1243 | 1200 |
1244 actual_push = PushArgument(Bind(Sub(actual_push, minus_push))); | 1201 actual_push = PushArgument(Bind(Sub(actual_push, minus_push))); |
1245 PushArgumentInstr* mask_push = PushArgument(Bind(Uint64Constant(mask))); | 1202 PushArgumentInstr* mask_push = PushArgument(Bind(Uint64Constant(mask))); |
1246 actual_def = InstanceCall(InstanceCallDescriptor::FromToken(Token::kBIT_AND), | 1203 actual_def = InstanceCall(InstanceCallDescriptor::FromToken(Token::kBIT_AND), |
1247 actual_push, | 1204 actual_push, mask_push); |
1248 mask_push); | |
1249 | 1205 |
1250 BranchOrBacktrack(Comparison(kNE, actual_def, expected_def), on_not_equal); | 1206 BranchOrBacktrack(Comparison(kNE, actual_def, expected_def), on_not_equal); |
1251 } | 1207 } |
1252 | 1208 |
1253 | 1209 |
1254 void IRRegExpMacroAssembler::CheckCharacterInRange( | 1210 void IRRegExpMacroAssembler::CheckCharacterInRange(uint16_t from, |
1255 uint16_t from, | 1211 uint16_t to, |
1256 uint16_t to, | 1212 BlockLabel* on_in_range) { |
1257 BlockLabel* on_in_range) { | |
1258 TAG(); | 1213 TAG(); |
1259 ASSERT(from <= to); | 1214 ASSERT(from <= to); |
1260 | 1215 |
1261 // TODO(zerny): All range comparisons could be done cheaper with unsigned | 1216 // TODO(zerny): All range comparisons could be done cheaper with unsigned |
1262 // compares. This pattern repeats in various places. | 1217 // compares. This pattern repeats in various places. |
1263 | 1218 |
1264 BlockLabel on_not_in_range; | 1219 BlockLabel on_not_in_range; |
1265 BranchOrBacktrack(Comparison(kLT, | 1220 BranchOrBacktrack( |
1266 LoadLocal(current_character_), | 1221 Comparison(kLT, LoadLocal(current_character_), Uint64Constant(from)), |
1267 Uint64Constant(from)), | 1222 &on_not_in_range); |
1268 &on_not_in_range); | 1223 BranchOrBacktrack( |
1269 BranchOrBacktrack(Comparison(kGT, | 1224 Comparison(kGT, LoadLocal(current_character_), Uint64Constant(to)), |
1270 LoadLocal(current_character_), | 1225 &on_not_in_range); |
1271 Uint64Constant(to)), | |
1272 &on_not_in_range); | |
1273 BranchOrBacktrack(NULL, on_in_range); | 1226 BranchOrBacktrack(NULL, on_in_range); |
1274 | 1227 |
1275 BindBlock(&on_not_in_range); | 1228 BindBlock(&on_not_in_range); |
1276 } | 1229 } |
1277 | 1230 |
1278 | 1231 |
1279 void IRRegExpMacroAssembler::CheckCharacterNotInRange( | 1232 void IRRegExpMacroAssembler::CheckCharacterNotInRange( |
1280 uint16_t from, | 1233 uint16_t from, |
1281 uint16_t to, | 1234 uint16_t to, |
1282 BlockLabel* on_not_in_range) { | 1235 BlockLabel* on_not_in_range) { |
1283 TAG(); | 1236 TAG(); |
1284 ASSERT(from <= to); | 1237 ASSERT(from <= to); |
1285 | 1238 |
1286 BranchOrBacktrack(Comparison(kLT, | 1239 BranchOrBacktrack( |
1287 LoadLocal(current_character_), | 1240 Comparison(kLT, LoadLocal(current_character_), Uint64Constant(from)), |
1288 Uint64Constant(from)), | 1241 on_not_in_range); |
1289 on_not_in_range); | |
1290 | 1242 |
1291 BranchOrBacktrack(Comparison(kGT, | 1243 BranchOrBacktrack( |
1292 LoadLocal(current_character_), | 1244 Comparison(kGT, LoadLocal(current_character_), Uint64Constant(to)), |
1293 Uint64Constant(to)), | 1245 on_not_in_range); |
1294 on_not_in_range); | |
1295 } | 1246 } |
1296 | 1247 |
1297 | 1248 |
1298 void IRRegExpMacroAssembler::CheckBitInTable( | 1249 void IRRegExpMacroAssembler::CheckBitInTable(const TypedData& table, |
1299 const TypedData& table, | 1250 BlockLabel* on_bit_set) { |
1300 BlockLabel* on_bit_set) { | |
1301 TAG(); | 1251 TAG(); |
1302 | 1252 |
1303 PushArgumentInstr* table_push = | 1253 PushArgumentInstr* table_push = |
1304 PushArgument(Bind(new(Z) ConstantInstr(table))); | 1254 PushArgument(Bind(new (Z) ConstantInstr(table))); |
1305 PushArgumentInstr* index_push = PushLocal(current_character_); | 1255 PushArgumentInstr* index_push = PushLocal(current_character_); |
1306 | 1256 |
1307 if (mode_ != ASCII || kTableMask != Symbols::kMaxOneCharCodeSymbol) { | 1257 if (mode_ != ASCII || kTableMask != Symbols::kMaxOneCharCodeSymbol) { |
1308 PushArgumentInstr* mask_push = | 1258 PushArgumentInstr* mask_push = |
1309 PushArgument(Bind(Uint64Constant(kTableSize - 1))); | 1259 PushArgument(Bind(Uint64Constant(kTableSize - 1))); |
1310 index_push = PushArgument( | 1260 index_push = PushArgument( |
1311 Bind(InstanceCall(InstanceCallDescriptor::FromToken(Token::kBIT_AND), | 1261 Bind(InstanceCall(InstanceCallDescriptor::FromToken(Token::kBIT_AND), |
1312 index_push, | 1262 index_push, mask_push))); |
1313 mask_push))); | |
1314 } | 1263 } |
1315 | 1264 |
1316 Definition* byte_def = | 1265 Definition* byte_def = InstanceCall( |
1317 InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), | 1266 InstanceCallDescriptor::FromToken(Token::kINDEX), table_push, index_push); |
1318 table_push, | |
1319 index_push); | |
1320 Definition* zero_def = Int64Constant(0); | 1267 Definition* zero_def = Int64Constant(0); |
1321 | 1268 |
1322 BranchOrBacktrack(Comparison(kNE, byte_def, zero_def), on_bit_set); | 1269 BranchOrBacktrack(Comparison(kNE, byte_def, zero_def), on_bit_set); |
1323 } | 1270 } |
1324 | 1271 |
1325 | 1272 |
1326 bool IRRegExpMacroAssembler::CheckSpecialCharacterClass( | 1273 bool IRRegExpMacroAssembler::CheckSpecialCharacterClass( |
1327 uint16_t type, | 1274 uint16_t type, |
1328 BlockLabel* on_no_match) { | 1275 BlockLabel* on_no_match) { |
1329 TAG(); | 1276 TAG(); |
1330 | 1277 |
1331 // Range checks (c in min..max) are generally implemented by an unsigned | 1278 // Range checks (c in min..max) are generally implemented by an unsigned |
1332 // (c - min) <= (max - min) check | 1279 // (c - min) <= (max - min) check |
1333 switch (type) { | 1280 switch (type) { |
1334 case 's': | 1281 case 's': |
1335 // Match space-characters | 1282 // Match space-characters |
1336 if (mode_ == ASCII) { | 1283 if (mode_ == ASCII) { |
1337 // One byte space characters are '\t'..'\r', ' ' and \u00a0. | 1284 // One byte space characters are '\t'..'\r', ' ' and \u00a0. |
| 1285 BlockLabel success; |
| 1286 // Space (' '). |
| 1287 BranchOrBacktrack( |
| 1288 Comparison(kEQ, LoadLocal(current_character_), Uint64Constant(' ')), |
| 1289 &success); |
| 1290 // Check range 0x09..0x0d. |
| 1291 CheckCharacterInRange('\t', '\r', &success); |
| 1292 // \u00a0 (NBSP). |
| 1293 BranchOrBacktrack(Comparison(kNE, LoadLocal(current_character_), |
| 1294 Uint64Constant(0x00a0)), |
| 1295 on_no_match); |
| 1296 BindBlock(&success); |
| 1297 return true; |
| 1298 } |
| 1299 return false; |
| 1300 case 'S': |
| 1301 // The emitted code for generic character classes is good enough. |
| 1302 return false; |
| 1303 case 'd': |
| 1304 // Match ASCII digits ('0'..'9') |
| 1305 CheckCharacterNotInRange('0', '9', on_no_match); |
| 1306 return true; |
| 1307 case 'D': |
| 1308 // Match non ASCII-digits |
| 1309 CheckCharacterInRange('0', '9', on_no_match); |
| 1310 return true; |
| 1311 case '.': { |
| 1312 // Match non-newlines (not 0x0a('\n'), 0x0d('\r'), 0x2028 and 0x2029) |
| 1313 BranchOrBacktrack( |
| 1314 Comparison(kEQ, LoadLocal(current_character_), Uint64Constant('\n')), |
| 1315 on_no_match); |
| 1316 BranchOrBacktrack( |
| 1317 Comparison(kEQ, LoadLocal(current_character_), Uint64Constant('\r')), |
| 1318 on_no_match); |
| 1319 if (mode_ == UC16) { |
| 1320 BranchOrBacktrack(Comparison(kEQ, LoadLocal(current_character_), |
| 1321 Uint64Constant(0x2028)), |
| 1322 on_no_match); |
| 1323 BranchOrBacktrack(Comparison(kEQ, LoadLocal(current_character_), |
| 1324 Uint64Constant(0x2029)), |
| 1325 on_no_match); |
| 1326 } |
| 1327 return true; |
| 1328 } |
| 1329 case 'w': { |
| 1330 if (mode_ != ASCII) { |
| 1331 // Table is 128 entries, so all ASCII characters can be tested. |
| 1332 BranchOrBacktrack( |
| 1333 Comparison(kGT, LoadLocal(current_character_), Uint64Constant('z')), |
| 1334 on_no_match); |
| 1335 } |
| 1336 |
| 1337 PushArgumentInstr* table_push = |
| 1338 PushArgument(Bind(WordCharacterMapConstant())); |
| 1339 PushArgumentInstr* index_push = PushLocal(current_character_); |
| 1340 |
| 1341 Definition* byte_def = |
| 1342 InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), |
| 1343 table_push, index_push); |
| 1344 Definition* zero_def = Int64Constant(0); |
| 1345 |
| 1346 BranchOrBacktrack(Comparison(kEQ, byte_def, zero_def), on_no_match); |
| 1347 |
| 1348 return true; |
| 1349 } |
| 1350 case 'W': { |
| 1351 BlockLabel done; |
| 1352 if (mode_ != ASCII) { |
| 1353 // Table is 128 entries, so all ASCII characters can be tested. |
| 1354 BranchOrBacktrack( |
| 1355 Comparison(kGT, LoadLocal(current_character_), Uint64Constant('z')), |
| 1356 &done); |
| 1357 } |
| 1358 |
| 1359 // TODO(zerny): Refactor to use CheckBitInTable if possible. |
| 1360 |
| 1361 PushArgumentInstr* table_push = |
| 1362 PushArgument(Bind(WordCharacterMapConstant())); |
| 1363 PushArgumentInstr* index_push = PushLocal(current_character_); |
| 1364 |
| 1365 Definition* byte_def = |
| 1366 InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), |
| 1367 table_push, index_push); |
| 1368 Definition* zero_def = Int64Constant(0); |
| 1369 |
| 1370 BranchOrBacktrack(Comparison(kNE, byte_def, zero_def), on_no_match); |
| 1371 |
| 1372 if (mode_ != ASCII) { |
| 1373 BindBlock(&done); |
| 1374 } |
| 1375 return true; |
| 1376 } |
| 1377 // Non-standard classes (with no syntactic shorthand) used internally. |
| 1378 case '*': |
| 1379 // Match any character. |
| 1380 return true; |
| 1381 case 'n': { |
| 1382 // Match newlines (0x0a('\n'), 0x0d('\r'), 0x2028 or 0x2029). |
| 1383 // The opposite of '.'. |
1338 BlockLabel success; | 1384 BlockLabel success; |
1339 // Space (' '). | 1385 BranchOrBacktrack( |
1340 BranchOrBacktrack(Comparison(kEQ, | 1386 Comparison(kEQ, LoadLocal(current_character_), Uint64Constant('\n')), |
1341 LoadLocal(current_character_), | 1387 &success); |
1342 Uint64Constant(' ')), | 1388 BranchOrBacktrack( |
1343 &success); | 1389 Comparison(kEQ, LoadLocal(current_character_), Uint64Constant('\r')), |
1344 // Check range 0x09..0x0d. | 1390 &success); |
1345 CheckCharacterInRange('\t', '\r', &success); | 1391 if (mode_ == UC16) { |
1346 // \u00a0 (NBSP). | 1392 BranchOrBacktrack(Comparison(kEQ, LoadLocal(current_character_), |
1347 BranchOrBacktrack(Comparison(kNE, | 1393 Uint64Constant(0x2028)), |
1348 LoadLocal(current_character_), | 1394 &success); |
1349 Uint64Constant(0x00a0)), | 1395 BranchOrBacktrack(Comparison(kEQ, LoadLocal(current_character_), |
1350 on_no_match); | 1396 Uint64Constant(0x2029)), |
| 1397 &success); |
| 1398 } |
| 1399 BranchOrBacktrack(NULL, on_no_match); |
1351 BindBlock(&success); | 1400 BindBlock(&success); |
1352 return true; | 1401 return true; |
1353 } | 1402 } |
1354 return false; | 1403 // No custom implementation (yet): s(uint16_t), S(uint16_t). |
1355 case 'S': | 1404 default: |
1356 // The emitted code for generic character classes is good enough. | 1405 return false; |
1357 return false; | |
1358 case 'd': | |
1359 // Match ASCII digits ('0'..'9') | |
1360 CheckCharacterNotInRange('0', '9', on_no_match); | |
1361 return true; | |
1362 case 'D': | |
1363 // Match non ASCII-digits | |
1364 CheckCharacterInRange('0', '9', on_no_match); | |
1365 return true; | |
1366 case '.': { | |
1367 // Match non-newlines (not 0x0a('\n'), 0x0d('\r'), 0x2028 and 0x2029) | |
1368 BranchOrBacktrack(Comparison(kEQ, | |
1369 LoadLocal(current_character_), | |
1370 Uint64Constant('\n')), | |
1371 on_no_match); | |
1372 BranchOrBacktrack(Comparison(kEQ, | |
1373 LoadLocal(current_character_), | |
1374 Uint64Constant('\r')), | |
1375 on_no_match); | |
1376 if (mode_ == UC16) { | |
1377 BranchOrBacktrack(Comparison(kEQ, | |
1378 LoadLocal(current_character_), | |
1379 Uint64Constant(0x2028)), | |
1380 on_no_match); | |
1381 BranchOrBacktrack(Comparison(kEQ, | |
1382 LoadLocal(current_character_), | |
1383 Uint64Constant(0x2029)), | |
1384 on_no_match); | |
1385 } | |
1386 return true; | |
1387 } | |
1388 case 'w': { | |
1389 if (mode_ != ASCII) { | |
1390 // Table is 128 entries, so all ASCII characters can be tested. | |
1391 BranchOrBacktrack(Comparison(kGT, | |
1392 LoadLocal(current_character_), | |
1393 Uint64Constant('z')), | |
1394 on_no_match); | |
1395 } | |
1396 | |
1397 PushArgumentInstr* table_push = | |
1398 PushArgument(Bind(WordCharacterMapConstant())); | |
1399 PushArgumentInstr* index_push = PushLocal(current_character_); | |
1400 | |
1401 Definition* byte_def = | |
1402 InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), | |
1403 table_push, | |
1404 index_push); | |
1405 Definition* zero_def = Int64Constant(0); | |
1406 | |
1407 BranchOrBacktrack(Comparison(kEQ, byte_def, zero_def), on_no_match); | |
1408 | |
1409 return true; | |
1410 } | |
1411 case 'W': { | |
1412 BlockLabel done; | |
1413 if (mode_ != ASCII) { | |
1414 // Table is 128 entries, so all ASCII characters can be tested. | |
1415 BranchOrBacktrack(Comparison(kGT, | |
1416 LoadLocal(current_character_), | |
1417 Uint64Constant('z')), | |
1418 &done); | |
1419 } | |
1420 | |
1421 // TODO(zerny): Refactor to use CheckBitInTable if possible. | |
1422 | |
1423 PushArgumentInstr* table_push = | |
1424 PushArgument(Bind(WordCharacterMapConstant())); | |
1425 PushArgumentInstr* index_push = PushLocal(current_character_); | |
1426 | |
1427 Definition* byte_def = | |
1428 InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), | |
1429 table_push, | |
1430 index_push); | |
1431 Definition* zero_def = Int64Constant(0); | |
1432 | |
1433 BranchOrBacktrack(Comparison(kNE, byte_def, zero_def), on_no_match); | |
1434 | |
1435 if (mode_ != ASCII) { | |
1436 BindBlock(&done); | |
1437 } | |
1438 return true; | |
1439 } | |
1440 // Non-standard classes (with no syntactic shorthand) used internally. | |
1441 case '*': | |
1442 // Match any character. | |
1443 return true; | |
1444 case 'n': { | |
1445 // Match newlines (0x0a('\n'), 0x0d('\r'), 0x2028 or 0x2029). | |
1446 // The opposite of '.'. | |
1447 BlockLabel success; | |
1448 BranchOrBacktrack(Comparison(kEQ, | |
1449 LoadLocal(current_character_), | |
1450 Uint64Constant('\n')), | |
1451 &success); | |
1452 BranchOrBacktrack(Comparison(kEQ, | |
1453 LoadLocal(current_character_), | |
1454 Uint64Constant('\r')), | |
1455 &success); | |
1456 if (mode_ == UC16) { | |
1457 BranchOrBacktrack(Comparison(kEQ, | |
1458 LoadLocal(current_character_), | |
1459 Uint64Constant(0x2028)), | |
1460 &success); | |
1461 BranchOrBacktrack(Comparison(kEQ, | |
1462 LoadLocal(current_character_), | |
1463 Uint64Constant(0x2029)), | |
1464 &success); | |
1465 } | |
1466 BranchOrBacktrack(NULL, on_no_match); | |
1467 BindBlock(&success); | |
1468 return true; | |
1469 } | |
1470 // No custom implementation (yet): s(uint16_t), S(uint16_t). | |
1471 default: | |
1472 return false; | |
1473 } | 1406 } |
1474 } | 1407 } |
1475 | 1408 |
1476 | 1409 |
1477 void IRRegExpMacroAssembler::Fail() { | 1410 void IRRegExpMacroAssembler::Fail() { |
1478 TAG(); | 1411 TAG(); |
1479 ASSERT(FAILURE == 0); // Return value for failure is zero. | 1412 ASSERT(FAILURE == 0); // Return value for failure is zero. |
1480 if (!global()) { | 1413 if (!global()) { |
1481 UNREACHABLE(); // Dart regexps are always global. | 1414 UNREACHABLE(); // Dart regexps are always global. |
1482 } | 1415 } |
(...skipping 14 matching lines...) Expand all Loading... |
1497 void IRRegExpMacroAssembler::IfRegisterLT(intptr_t reg, | 1430 void IRRegExpMacroAssembler::IfRegisterLT(intptr_t reg, |
1498 intptr_t comparand, | 1431 intptr_t comparand, |
1499 BlockLabel* if_lt) { | 1432 BlockLabel* if_lt) { |
1500 TAG(); | 1433 TAG(); |
1501 PushArgumentInstr* reg_push = PushArgument(LoadRegister(reg)); | 1434 PushArgumentInstr* reg_push = PushArgument(LoadRegister(reg)); |
1502 PushArgumentInstr* pos = PushArgument(Bind(Int64Constant(comparand))); | 1435 PushArgumentInstr* pos = PushArgument(Bind(Int64Constant(comparand))); |
1503 BranchOrBacktrack(Comparison(kLT, reg_push, pos), if_lt); | 1436 BranchOrBacktrack(Comparison(kLT, reg_push, pos), if_lt); |
1504 } | 1437 } |
1505 | 1438 |
1506 | 1439 |
1507 void IRRegExpMacroAssembler::IfRegisterEqPos(intptr_t reg, | 1440 void IRRegExpMacroAssembler::IfRegisterEqPos(intptr_t reg, BlockLabel* if_eq) { |
1508 BlockLabel* if_eq) { | |
1509 TAG(); | 1441 TAG(); |
1510 PushArgumentInstr* reg_push = PushArgument(LoadRegister(reg)); | 1442 PushArgumentInstr* reg_push = PushArgument(LoadRegister(reg)); |
1511 PushArgumentInstr* pos = PushArgument(Bind(LoadLocal(current_position_))); | 1443 PushArgumentInstr* pos = PushArgument(Bind(LoadLocal(current_position_))); |
1512 BranchOrBacktrack(Comparison(kEQ, reg_push, pos), if_eq); | 1444 BranchOrBacktrack(Comparison(kEQ, reg_push, pos), if_eq); |
1513 } | 1445 } |
1514 | 1446 |
1515 | 1447 |
1516 RegExpMacroAssembler::IrregexpImplementation | 1448 RegExpMacroAssembler::IrregexpImplementation |
1517 IRRegExpMacroAssembler::Implementation() { | 1449 IRRegExpMacroAssembler::Implementation() { |
1518 return kIRImplementation; | 1450 return kIRImplementation; |
1519 } | 1451 } |
1520 | 1452 |
1521 | 1453 |
1522 void IRRegExpMacroAssembler::LoadCurrentCharacter(intptr_t cp_offset, | 1454 void IRRegExpMacroAssembler::LoadCurrentCharacter(intptr_t cp_offset, |
1523 BlockLabel* on_end_of_input, | 1455 BlockLabel* on_end_of_input, |
1524 bool check_bounds, | 1456 bool check_bounds, |
1525 intptr_t characters) { | 1457 intptr_t characters) { |
1526 TAG(); | 1458 TAG(); |
1527 ASSERT(cp_offset >= -1); // ^ and \b can look behind one character. | 1459 ASSERT(cp_offset >= -1); // ^ and \b can look behind one character. |
1528 ASSERT(cp_offset < (1<<30)); // Be sane! (And ensure negation works) | 1460 ASSERT(cp_offset < (1 << 30)); // Be sane! (And ensure negation works) |
1529 if (check_bounds) { | 1461 if (check_bounds) { |
1530 CheckPosition(cp_offset + characters - 1, on_end_of_input); | 1462 CheckPosition(cp_offset + characters - 1, on_end_of_input); |
1531 } | 1463 } |
1532 LoadCurrentCharacterUnchecked(cp_offset, characters); | 1464 LoadCurrentCharacterUnchecked(cp_offset, characters); |
1533 } | 1465 } |
1534 | 1466 |
1535 | 1467 |
1536 void IRRegExpMacroAssembler::PopCurrentPosition() { | 1468 void IRRegExpMacroAssembler::PopCurrentPosition() { |
1537 TAG(); | 1469 TAG(); |
1538 StoreLocal(current_position_, Bind(PopStack())); | 1470 StoreLocal(current_position_, Bind(PopStack())); |
1539 } | 1471 } |
1540 | 1472 |
1541 | 1473 |
1542 void IRRegExpMacroAssembler::PopRegister(intptr_t reg) { | 1474 void IRRegExpMacroAssembler::PopRegister(intptr_t reg) { |
1543 TAG(); | 1475 TAG(); |
1544 ASSERT(reg < registers_count_); | 1476 ASSERT(reg < registers_count_); |
1545 PushArgumentInstr* registers_push = PushLocal(registers_); | 1477 PushArgumentInstr* registers_push = PushLocal(registers_); |
1546 PushArgumentInstr* index_push = PushRegisterIndex(reg); | 1478 PushArgumentInstr* index_push = PushRegisterIndex(reg); |
1547 PushArgumentInstr* pop_push = PushArgument(Bind(PopStack())); | 1479 PushArgumentInstr* pop_push = PushArgument(Bind(PopStack())); |
1548 StoreRegister(registers_push, index_push, pop_push); | 1480 StoreRegister(registers_push, index_push, pop_push); |
1549 } | 1481 } |
1550 | 1482 |
1551 | 1483 |
1552 void IRRegExpMacroAssembler::PushStack(Definition *definition) { | 1484 void IRRegExpMacroAssembler::PushStack(Definition* definition) { |
1553 PushArgumentInstr* stack_push = PushLocal(stack_); | 1485 PushArgumentInstr* stack_push = PushLocal(stack_); |
1554 PushArgumentInstr* stack_pointer_push = PushLocal(stack_pointer_); | 1486 PushArgumentInstr* stack_pointer_push = PushLocal(stack_pointer_); |
1555 StoreLocal(stack_pointer_, | 1487 StoreLocal(stack_pointer_, Bind(Add(stack_pointer_push, |
1556 Bind(Add(stack_pointer_push, | 1488 PushArgument(Bind(Uint64Constant(1)))))); |
1557 PushArgument(Bind(Uint64Constant(1)))))); | |
1558 stack_pointer_push = PushLocal(stack_pointer_); | 1489 stack_pointer_push = PushLocal(stack_pointer_); |
1559 // TODO(zerny): bind value and push could break stack discipline. | 1490 // TODO(zerny): bind value and push could break stack discipline. |
1560 PushArgumentInstr* value_push = PushArgument(Bind(definition)); | 1491 PushArgumentInstr* value_push = PushArgument(Bind(definition)); |
1561 Do(InstanceCall(InstanceCallDescriptor::FromToken(Token::kASSIGN_INDEX), | 1492 Do(InstanceCall(InstanceCallDescriptor::FromToken(Token::kASSIGN_INDEX), |
1562 stack_push, | 1493 stack_push, stack_pointer_push, value_push)); |
1563 stack_pointer_push, | |
1564 value_push)); | |
1565 } | 1494 } |
1566 | 1495 |
1567 | 1496 |
1568 Definition* IRRegExpMacroAssembler::PopStack() { | 1497 Definition* IRRegExpMacroAssembler::PopStack() { |
1569 PushArgumentInstr* stack_push = PushLocal(stack_); | 1498 PushArgumentInstr* stack_push = PushLocal(stack_); |
1570 PushArgumentInstr* stack_pointer_push1 = PushLocal(stack_pointer_); | 1499 PushArgumentInstr* stack_pointer_push1 = PushLocal(stack_pointer_); |
1571 PushArgumentInstr* stack_pointer_push2 = PushLocal(stack_pointer_); | 1500 PushArgumentInstr* stack_pointer_push2 = PushLocal(stack_pointer_); |
1572 StoreLocal(stack_pointer_, | 1501 StoreLocal(stack_pointer_, Bind(Sub(stack_pointer_push2, |
1573 Bind(Sub(stack_pointer_push2, | 1502 PushArgument(Bind(Uint64Constant(1)))))); |
1574 PushArgument(Bind(Uint64Constant(1)))))); | |
1575 return InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), | 1503 return InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), |
1576 stack_push, | 1504 stack_push, stack_pointer_push1); |
1577 stack_pointer_push1); | |
1578 } | 1505 } |
1579 | 1506 |
1580 | 1507 |
1581 Definition* IRRegExpMacroAssembler::PeekStack() { | 1508 Definition* IRRegExpMacroAssembler::PeekStack() { |
1582 PushArgumentInstr* stack_push = PushLocal(stack_); | 1509 PushArgumentInstr* stack_push = PushLocal(stack_); |
1583 PushArgumentInstr* stack_pointer_push = PushLocal(stack_pointer_); | 1510 PushArgumentInstr* stack_pointer_push = PushLocal(stack_pointer_); |
1584 return InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), | 1511 return InstanceCall(InstanceCallDescriptor::FromToken(Token::kINDEX), |
1585 stack_push, | 1512 stack_push, stack_pointer_push); |
1586 stack_pointer_push); | |
1587 } | 1513 } |
1588 | 1514 |
1589 | 1515 |
1590 // Pushes the location corresponding to label to the backtracking stack. | 1516 // Pushes the location corresponding to label to the backtracking stack. |
1591 void IRRegExpMacroAssembler::PushBacktrack(BlockLabel* label) { | 1517 void IRRegExpMacroAssembler::PushBacktrack(BlockLabel* label) { |
1592 TAG(); | 1518 TAG(); |
1593 | 1519 |
1594 // Ensure that targets of indirect jumps are never accessed through a | 1520 // Ensure that targets of indirect jumps are never accessed through a |
1595 // normal control flow instructions by creating a new block for each backtrack | 1521 // normal control flow instructions by creating a new block for each backtrack |
1596 // target. | 1522 // target. |
(...skipping 12 matching lines...) Expand all Loading... |
1609 TAG(); | 1535 TAG(); |
1610 PushStack(LoadLocal(current_position_)); | 1536 PushStack(LoadLocal(current_position_)); |
1611 } | 1537 } |
1612 | 1538 |
1613 | 1539 |
1614 void IRRegExpMacroAssembler::PushRegister(intptr_t reg) { | 1540 void IRRegExpMacroAssembler::PushRegister(intptr_t reg) { |
1615 TAG(); | 1541 TAG(); |
1616 // TODO(zerny): Refactor PushStack so it can be reused here. | 1542 // TODO(zerny): Refactor PushStack so it can be reused here. |
1617 PushArgumentInstr* stack_push = PushLocal(stack_); | 1543 PushArgumentInstr* stack_push = PushLocal(stack_); |
1618 PushArgumentInstr* stack_pointer_push = PushLocal(stack_pointer_); | 1544 PushArgumentInstr* stack_pointer_push = PushLocal(stack_pointer_); |
1619 StoreLocal(stack_pointer_, | 1545 StoreLocal(stack_pointer_, Bind(Add(stack_pointer_push, |
1620 Bind(Add(stack_pointer_push, | 1546 PushArgument(Bind(Uint64Constant(1)))))); |
1621 PushArgument(Bind(Uint64Constant(1)))))); | |
1622 stack_pointer_push = PushLocal(stack_pointer_); | 1547 stack_pointer_push = PushLocal(stack_pointer_); |
1623 // TODO(zerny): bind value and push could break stack discipline. | 1548 // TODO(zerny): bind value and push could break stack discipline. |
1624 PushArgumentInstr* value_push = PushArgument(LoadRegister(reg)); | 1549 PushArgumentInstr* value_push = PushArgument(LoadRegister(reg)); |
1625 Do(InstanceCall(InstanceCallDescriptor::FromToken(Token::kASSIGN_INDEX), | 1550 Do(InstanceCall(InstanceCallDescriptor::FromToken(Token::kASSIGN_INDEX), |
1626 stack_push, | 1551 stack_push, stack_pointer_push, value_push)); |
1627 stack_pointer_push, | |
1628 value_push)); | |
1629 CheckStackLimit(); | 1552 CheckStackLimit(); |
1630 } | 1553 } |
1631 | 1554 |
1632 | 1555 |
1633 // Checks that (stack.capacity - stack_limit_slack) > stack_pointer. | 1556 // Checks that (stack.capacity - stack_limit_slack) > stack_pointer. |
1634 // This ensures that up to stack_limit_slack stack pushes can be | 1557 // This ensures that up to stack_limit_slack stack pushes can be |
1635 // done without exhausting the stack space. If the check fails the | 1558 // done without exhausting the stack space. If the check fails the |
1636 // stack will be grown. | 1559 // stack will be grown. |
1637 void IRRegExpMacroAssembler::CheckStackLimit() { | 1560 void IRRegExpMacroAssembler::CheckStackLimit() { |
1638 TAG(); | 1561 TAG(); |
1639 PushArgumentInstr* stack_push = PushLocal(stack_); | 1562 PushArgumentInstr* stack_push = PushLocal(stack_); |
1640 PushArgumentInstr* length_push = PushArgument(Bind(InstanceCall( | 1563 PushArgumentInstr* length_push = PushArgument( |
1641 InstanceCallDescriptor( | 1564 Bind(InstanceCall(InstanceCallDescriptor(String::ZoneHandle( |
1642 String::ZoneHandle(Field::GetterSymbol(Symbols::Length()))), | 1565 Field::GetterSymbol(Symbols::Length()))), |
1643 stack_push))); | 1566 stack_push))); |
1644 PushArgumentInstr* capacity_push = PushArgument(Bind(Sub( | 1567 PushArgumentInstr* capacity_push = PushArgument(Bind(Sub( |
1645 length_push, | 1568 length_push, PushArgument(Bind(Uint64Constant(stack_limit_slack())))))); |
1646 PushArgument(Bind(Uint64Constant(stack_limit_slack())))))); | |
1647 PushArgumentInstr* stack_pointer_push = PushLocal(stack_pointer_); | 1569 PushArgumentInstr* stack_pointer_push = PushLocal(stack_pointer_); |
1648 BranchInstr* branch = new(Z) BranchInstr( | 1570 BranchInstr* branch = |
1649 Comparison(kGT, capacity_push, stack_pointer_push)); | 1571 new (Z) BranchInstr(Comparison(kGT, capacity_push, stack_pointer_push)); |
1650 CloseBlockWith(branch); | 1572 CloseBlockWith(branch); |
1651 | 1573 |
1652 BlockLabel grow_stack; | 1574 BlockLabel grow_stack; |
1653 BlockLabel fallthrough; | 1575 BlockLabel fallthrough; |
1654 *branch->true_successor_address() = | 1576 *branch->true_successor_address() = TargetWithJoinGoto(fallthrough.block()); |
1655 TargetWithJoinGoto(fallthrough.block()); | 1577 *branch->false_successor_address() = TargetWithJoinGoto(grow_stack.block()); |
1656 *branch->false_successor_address() = | |
1657 TargetWithJoinGoto(grow_stack.block()); | |
1658 | 1578 |
1659 BindBlock(&grow_stack); | 1579 BindBlock(&grow_stack); |
1660 GrowStack(); | 1580 GrowStack(); |
1661 | 1581 |
1662 BindBlock(&fallthrough); | 1582 BindBlock(&fallthrough); |
1663 } | 1583 } |
1664 | 1584 |
1665 | 1585 |
1666 void IRRegExpMacroAssembler::GrowStack() { | 1586 void IRRegExpMacroAssembler::GrowStack() { |
1667 TAG(); | 1587 TAG(); |
1668 Value* cell = Bind(new(Z) ConstantInstr(stack_array_cell_)); | 1588 Value* cell = Bind(new (Z) ConstantInstr(stack_array_cell_)); |
1669 StoreLocal(stack_, Bind(new(Z) GrowRegExpStackInstr(cell))); | 1589 StoreLocal(stack_, Bind(new (Z) GrowRegExpStackInstr(cell))); |
1670 } | 1590 } |
1671 | 1591 |
1672 | 1592 |
1673 void IRRegExpMacroAssembler::ReadCurrentPositionFromRegister(intptr_t reg) { | 1593 void IRRegExpMacroAssembler::ReadCurrentPositionFromRegister(intptr_t reg) { |
1674 TAG(); | 1594 TAG(); |
1675 StoreLocal(current_position_, LoadRegister(reg)); | 1595 StoreLocal(current_position_, LoadRegister(reg)); |
1676 } | 1596 } |
1677 | 1597 |
1678 // Resets the tip of the stack to the value stored in reg. | 1598 // Resets the tip of the stack to the value stored in reg. |
1679 void IRRegExpMacroAssembler::ReadStackPointerFromRegister(intptr_t reg) { | 1599 void IRRegExpMacroAssembler::ReadStackPointerFromRegister(intptr_t reg) { |
1680 TAG(); | 1600 TAG(); |
1681 ASSERT(reg < registers_count_); | 1601 ASSERT(reg < registers_count_); |
1682 StoreLocal(stack_pointer_, LoadRegister(reg)); | 1602 StoreLocal(stack_pointer_, LoadRegister(reg)); |
1683 } | 1603 } |
1684 | 1604 |
1685 void IRRegExpMacroAssembler::SetCurrentPositionFromEnd(intptr_t by) { | 1605 void IRRegExpMacroAssembler::SetCurrentPositionFromEnd(intptr_t by) { |
1686 TAG(); | 1606 TAG(); |
1687 | 1607 |
1688 BlockLabel after_position; | 1608 BlockLabel after_position; |
1689 | 1609 |
1690 Definition* cur_pos_def = LoadLocal(current_position_); | 1610 Definition* cur_pos_def = LoadLocal(current_position_); |
1691 Definition* by_value_def = Int64Constant(-by); | 1611 Definition* by_value_def = Int64Constant(-by); |
1692 | 1612 |
1693 BranchOrBacktrack(Comparison(kGTE, cur_pos_def, by_value_def), | 1613 BranchOrBacktrack(Comparison(kGTE, cur_pos_def, by_value_def), |
1694 &after_position); | 1614 &after_position); |
1695 | 1615 |
(...skipping 17 matching lines...) Expand all Loading... |
1713 | 1633 |
1714 | 1634 |
1715 bool IRRegExpMacroAssembler::Succeed() { | 1635 bool IRRegExpMacroAssembler::Succeed() { |
1716 TAG(); | 1636 TAG(); |
1717 GoTo(success_block_); | 1637 GoTo(success_block_); |
1718 return global(); | 1638 return global(); |
1719 } | 1639 } |
1720 | 1640 |
1721 | 1641 |
1722 void IRRegExpMacroAssembler::WriteCurrentPositionToRegister( | 1642 void IRRegExpMacroAssembler::WriteCurrentPositionToRegister( |
1723 intptr_t reg, intptr_t cp_offset) { | 1643 intptr_t reg, |
| 1644 intptr_t cp_offset) { |
1724 TAG(); | 1645 TAG(); |
1725 | 1646 |
1726 PushArgumentInstr* registers_push = PushLocal(registers_); | 1647 PushArgumentInstr* registers_push = PushLocal(registers_); |
1727 PushArgumentInstr* index_push = PushRegisterIndex(reg); | 1648 PushArgumentInstr* index_push = PushRegisterIndex(reg); |
1728 PushArgumentInstr* pos_push = PushLocal(current_position_); | 1649 PushArgumentInstr* pos_push = PushLocal(current_position_); |
1729 PushArgumentInstr* off_push = PushArgument(Bind(Int64Constant(cp_offset))); | 1650 PushArgumentInstr* off_push = PushArgument(Bind(Int64Constant(cp_offset))); |
1730 PushArgumentInstr* neg_off_push = PushArgument(Bind(Add(pos_push, off_push))); | 1651 PushArgumentInstr* neg_off_push = PushArgument(Bind(Add(pos_push, off_push))); |
1731 // Push the negative offset; these are converted to positive string positions | 1652 // Push the negative offset; these are converted to positive string positions |
1732 // within the success block. | 1653 // within the success block. |
1733 StoreRegister(registers_push, index_push, neg_off_push); | 1654 StoreRegister(registers_push, index_push, neg_off_push); |
1734 } | 1655 } |
1735 | 1656 |
1736 | 1657 |
1737 void IRRegExpMacroAssembler::ClearRegisters( | 1658 void IRRegExpMacroAssembler::ClearRegisters(intptr_t reg_from, |
1738 intptr_t reg_from, intptr_t reg_to) { | 1659 intptr_t reg_to) { |
1739 TAG(); | 1660 TAG(); |
1740 | 1661 |
1741 ASSERT(reg_from <= reg_to); | 1662 ASSERT(reg_from <= reg_to); |
1742 | 1663 |
1743 // In order to clear registers to a final result value of -1, set them to | 1664 // In order to clear registers to a final result value of -1, set them to |
1744 // (-1 - string length), the offset of -1 from the end of the string. | 1665 // (-1 - string length), the offset of -1 from the end of the string. |
1745 | 1666 |
1746 for (intptr_t reg = reg_from; reg <= reg_to; reg++) { | 1667 for (intptr_t reg = reg_from; reg <= reg_to; reg++) { |
1747 PushArgumentInstr* registers_push = PushLocal(registers_); | 1668 PushArgumentInstr* registers_push = PushLocal(registers_); |
1748 PushArgumentInstr* index_push = PushRegisterIndex(reg); | 1669 PushArgumentInstr* index_push = PushRegisterIndex(reg); |
1749 PushArgumentInstr* minus_one_push = | 1670 PushArgumentInstr* minus_one_push = PushArgument(Bind(Int64Constant(-1))); |
1750 PushArgument(Bind(Int64Constant(-1))); | |
1751 PushArgumentInstr* length_push = PushLocal(string_param_length_); | 1671 PushArgumentInstr* length_push = PushLocal(string_param_length_); |
1752 PushArgumentInstr* value_push = | 1672 PushArgumentInstr* value_push = |
1753 PushArgument(Bind(Sub(minus_one_push, length_push))); | 1673 PushArgument(Bind(Sub(minus_one_push, length_push))); |
1754 StoreRegister(registers_push, index_push, value_push); | 1674 StoreRegister(registers_push, index_push, value_push); |
1755 } | 1675 } |
1756 } | 1676 } |
1757 | 1677 |
1758 | 1678 |
1759 void IRRegExpMacroAssembler::WriteStackPointerToRegister(intptr_t reg) { | 1679 void IRRegExpMacroAssembler::WriteStackPointerToRegister(intptr_t reg) { |
1760 TAG(); | 1680 TAG(); |
(...skipping 10 matching lines...) Expand all Loading... |
1771 | 1691 |
1772 void IRRegExpMacroAssembler::CheckPosition(intptr_t cp_offset, | 1692 void IRRegExpMacroAssembler::CheckPosition(intptr_t cp_offset, |
1773 BlockLabel* on_outside_input) { | 1693 BlockLabel* on_outside_input) { |
1774 TAG(); | 1694 TAG(); |
1775 Definition* curpos_def = LoadLocal(current_position_); | 1695 Definition* curpos_def = LoadLocal(current_position_); |
1776 Definition* cp_off_def = Int64Constant(-cp_offset); | 1696 Definition* cp_off_def = Int64Constant(-cp_offset); |
1777 | 1697 |
1778 // If (current_position_ < -cp_offset), we are in bounds. | 1698 // If (current_position_ < -cp_offset), we are in bounds. |
1779 // Remember, current_position_ is a negative offset from the string end. | 1699 // Remember, current_position_ is a negative offset from the string end. |
1780 | 1700 |
1781 BranchOrBacktrack(Comparison(kGTE, curpos_def, cp_off_def), | 1701 BranchOrBacktrack(Comparison(kGTE, curpos_def, cp_off_def), on_outside_input); |
1782 on_outside_input); | |
1783 } | 1702 } |
1784 | 1703 |
1785 | 1704 |
1786 void IRRegExpMacroAssembler::BranchOrBacktrack( | 1705 void IRRegExpMacroAssembler::BranchOrBacktrack(ComparisonInstr* comparison, |
1787 ComparisonInstr* comparison, | 1706 BlockLabel* true_successor) { |
1788 BlockLabel* true_successor) { | |
1789 if (comparison == NULL) { // No condition | 1707 if (comparison == NULL) { // No condition |
1790 if (true_successor == NULL) { | 1708 if (true_successor == NULL) { |
1791 Backtrack(); | 1709 Backtrack(); |
1792 return; | 1710 return; |
1793 } | 1711 } |
1794 GoTo(true_successor); | 1712 GoTo(true_successor); |
1795 return; | 1713 return; |
1796 } | 1714 } |
1797 | 1715 |
1798 // If no successor block has been passed in, backtrack. | 1716 // If no successor block has been passed in, backtrack. |
1799 JoinEntryInstr* true_successor_block = backtrack_block_; | 1717 JoinEntryInstr* true_successor_block = backtrack_block_; |
1800 if (true_successor != NULL) { | 1718 if (true_successor != NULL) { |
1801 true_successor->SetLinked(); | 1719 true_successor->SetLinked(); |
1802 true_successor_block = true_successor->block(); | 1720 true_successor_block = true_successor->block(); |
1803 } | 1721 } |
1804 ASSERT(true_successor_block != NULL); | 1722 ASSERT(true_successor_block != NULL); |
1805 | 1723 |
1806 // If the condition is not true, fall through to a new block. | 1724 // If the condition is not true, fall through to a new block. |
1807 BlockLabel fallthrough; | 1725 BlockLabel fallthrough; |
1808 | 1726 |
1809 BranchInstr* branch = new(Z) BranchInstr(comparison); | 1727 BranchInstr* branch = new (Z) BranchInstr(comparison); |
1810 *branch->true_successor_address() = | 1728 *branch->true_successor_address() = TargetWithJoinGoto(true_successor_block); |
1811 TargetWithJoinGoto(true_successor_block); | 1729 *branch->false_successor_address() = TargetWithJoinGoto(fallthrough.block()); |
1812 *branch->false_successor_address() = | |
1813 TargetWithJoinGoto(fallthrough.block()); | |
1814 | 1730 |
1815 CloseBlockWith(branch); | 1731 CloseBlockWith(branch); |
1816 BindBlock(&fallthrough); | 1732 BindBlock(&fallthrough); |
1817 } | 1733 } |
1818 | 1734 |
1819 | 1735 |
1820 TargetEntryInstr* IRRegExpMacroAssembler::TargetWithJoinGoto( | 1736 TargetEntryInstr* IRRegExpMacroAssembler::TargetWithJoinGoto( |
1821 JoinEntryInstr* dst) { | 1737 JoinEntryInstr* dst) { |
1822 TargetEntryInstr* target = new(Z) TargetEntryInstr( | 1738 TargetEntryInstr* target = |
1823 block_id_.Alloc(), kInvalidTryIndex); | 1739 new (Z) TargetEntryInstr(block_id_.Alloc(), kInvalidTryIndex); |
1824 blocks_.Add(target); | 1740 blocks_.Add(target); |
1825 | 1741 |
1826 target->AppendInstruction(new(Z) GotoInstr(dst)); | 1742 target->AppendInstruction(new (Z) GotoInstr(dst)); |
1827 | 1743 |
1828 return target; | 1744 return target; |
1829 } | 1745 } |
1830 | 1746 |
1831 | 1747 |
1832 IndirectEntryInstr* IRRegExpMacroAssembler::IndirectWithJoinGoto( | 1748 IndirectEntryInstr* IRRegExpMacroAssembler::IndirectWithJoinGoto( |
1833 JoinEntryInstr* dst) { | 1749 JoinEntryInstr* dst) { |
1834 IndirectEntryInstr* target = new(Z) IndirectEntryInstr( | 1750 IndirectEntryInstr* target = new (Z) IndirectEntryInstr( |
1835 block_id_.Alloc(), indirect_id_.Alloc(), kInvalidTryIndex); | 1751 block_id_.Alloc(), indirect_id_.Alloc(), kInvalidTryIndex); |
1836 blocks_.Add(target); | 1752 blocks_.Add(target); |
1837 | 1753 |
1838 target->AppendInstruction(new(Z) GotoInstr(dst)); | 1754 target->AppendInstruction(new (Z) GotoInstr(dst)); |
1839 | 1755 |
1840 return target; | 1756 return target; |
1841 } | 1757 } |
1842 | 1758 |
1843 | 1759 |
1844 void IRRegExpMacroAssembler::CheckPreemption() { | 1760 void IRRegExpMacroAssembler::CheckPreemption() { |
1845 TAG(); | 1761 TAG(); |
1846 AppendInstruction(new(Z) CheckStackOverflowInstr( | 1762 AppendInstruction(new (Z) |
1847 TokenPosition::kNoSource, 0)); | 1763 CheckStackOverflowInstr(TokenPosition::kNoSource, 0)); |
1848 } | 1764 } |
1849 | 1765 |
1850 | 1766 |
1851 Definition* IRRegExpMacroAssembler::Add( | 1767 Definition* IRRegExpMacroAssembler::Add(PushArgumentInstr* lhs, |
1852 PushArgumentInstr* lhs, | 1768 PushArgumentInstr* rhs) { |
1853 PushArgumentInstr* rhs) { | |
1854 return InstanceCall(InstanceCallDescriptor::FromToken(Token::kADD), lhs, rhs); | 1769 return InstanceCall(InstanceCallDescriptor::FromToken(Token::kADD), lhs, rhs); |
1855 } | 1770 } |
1856 | 1771 |
1857 | 1772 |
1858 Definition* IRRegExpMacroAssembler::Sub( | 1773 Definition* IRRegExpMacroAssembler::Sub(PushArgumentInstr* lhs, |
1859 PushArgumentInstr* lhs, | 1774 PushArgumentInstr* rhs) { |
1860 PushArgumentInstr* rhs) { | |
1861 return InstanceCall(InstanceCallDescriptor::FromToken(Token::kSUB), lhs, rhs); | 1775 return InstanceCall(InstanceCallDescriptor::FromToken(Token::kSUB), lhs, rhs); |
1862 } | 1776 } |
1863 | 1777 |
1864 | 1778 |
1865 void IRRegExpMacroAssembler::LoadCurrentCharacterUnchecked( | 1779 void IRRegExpMacroAssembler::LoadCurrentCharacterUnchecked( |
1866 intptr_t cp_offset, intptr_t characters) { | 1780 intptr_t cp_offset, |
| 1781 intptr_t characters) { |
1867 TAG(); | 1782 TAG(); |
1868 | 1783 |
1869 ASSERT(characters == 1 || CanReadUnaligned()); | 1784 ASSERT(characters == 1 || CanReadUnaligned()); |
1870 if (mode_ == ASCII) { | 1785 if (mode_ == ASCII) { |
1871 ASSERT(characters == 1 || characters == 2 || characters == 4); | 1786 ASSERT(characters == 1 || characters == 2 || characters == 4); |
1872 } else { | 1787 } else { |
1873 ASSERT(mode_ == UC16); | 1788 ASSERT(mode_ == UC16); |
1874 ASSERT(characters == 1 || characters == 2); | 1789 ASSERT(characters == 1 || characters == 2); |
1875 } | 1790 } |
1876 | 1791 |
1877 // Calculate the addressed string index as: | 1792 // Calculate the addressed string index as: |
1878 // cp_offset + current_position_ + string_param_length_ | 1793 // cp_offset + current_position_ + string_param_length_ |
1879 // TODO(zerny): Avoid generating 'add' instance-calls here. | 1794 // TODO(zerny): Avoid generating 'add' instance-calls here. |
1880 PushArgumentInstr* off_arg = | 1795 PushArgumentInstr* off_arg = PushArgument(Bind(Int64Constant(cp_offset))); |
1881 PushArgument(Bind(Int64Constant(cp_offset))); | 1796 PushArgumentInstr* pos_arg = PushArgument(BindLoadLocal(*current_position_)); |
1882 PushArgumentInstr* pos_arg = | 1797 PushArgumentInstr* off_pos_arg = PushArgument(Bind(Add(off_arg, pos_arg))); |
1883 PushArgument(BindLoadLocal(*current_position_)); | |
1884 PushArgumentInstr* off_pos_arg = | |
1885 PushArgument(Bind(Add(off_arg, pos_arg))); | |
1886 PushArgumentInstr* len_arg = | 1798 PushArgumentInstr* len_arg = |
1887 PushArgument(BindLoadLocal(*string_param_length_)); | 1799 PushArgument(BindLoadLocal(*string_param_length_)); |
1888 // Index is stored in a temporary local so that we can later load it safely. | 1800 // Index is stored in a temporary local so that we can later load it safely. |
1889 StoreLocal(index_temp_, Bind(Add(off_pos_arg, len_arg))); | 1801 StoreLocal(index_temp_, Bind(Add(off_pos_arg, len_arg))); |
1890 | 1802 |
1891 // Load and store the code units. | 1803 // Load and store the code units. |
1892 Value* code_unit_value = LoadCodeUnitsAt(index_temp_, characters); | 1804 Value* code_unit_value = LoadCodeUnitsAt(index_temp_, characters); |
1893 StoreLocal(current_character_, code_unit_value); | 1805 StoreLocal(current_character_, code_unit_value); |
1894 PRINT(PushLocal(current_character_)); | 1806 PRINT(PushLocal(current_character_)); |
1895 } | 1807 } |
(...skipping 18 matching lines...) Expand all Loading... |
1914 } else if (specialization_cid_ == kExternalTwoByteStringCid) { | 1826 } else if (specialization_cid_ == kExternalTwoByteStringCid) { |
1915 external_offset = ExternalTwoByteString::external_data_offset(); | 1827 external_offset = ExternalTwoByteString::external_data_offset(); |
1916 data_offset = RawExternalTwoByteString::ExternalData::data_offset(); | 1828 data_offset = RawExternalTwoByteString::ExternalData::data_offset(); |
1917 } else { | 1829 } else { |
1918 UNREACHABLE(); | 1830 UNREACHABLE(); |
1919 } | 1831 } |
1920 // This pushes untagged values on the stack which are immediately consumed: | 1832 // This pushes untagged values on the stack which are immediately consumed: |
1921 // the first value is consumed to obtain the second value which is consumed | 1833 // the first value is consumed to obtain the second value which is consumed |
1922 // by LoadCodeUnitsAtInstr below. | 1834 // by LoadCodeUnitsAtInstr below. |
1923 Value* external_val = | 1835 Value* external_val = |
1924 Bind(new(Z) LoadUntaggedInstr(pattern_val, external_offset)); | 1836 Bind(new (Z) LoadUntaggedInstr(pattern_val, external_offset)); |
1925 pattern_val = | 1837 pattern_val = Bind(new (Z) LoadUntaggedInstr(external_val, data_offset)); |
1926 Bind(new(Z) LoadUntaggedInstr(external_val, data_offset)); | |
1927 } | 1838 } |
1928 | 1839 |
1929 // Here pattern_val might be untagged so this must not trigger a GC. | 1840 // Here pattern_val might be untagged so this must not trigger a GC. |
1930 Value* index_val = BindLoadLocal(*index); | 1841 Value* index_val = BindLoadLocal(*index); |
1931 | 1842 |
1932 return Bind(new(Z) LoadCodeUnitsInstr( | 1843 return Bind(new (Z) LoadCodeUnitsInstr(pattern_val, index_val, characters, |
1933 pattern_val, | 1844 specialization_cid_, |
1934 index_val, | 1845 TokenPosition::kNoSource)); |
1935 characters, | |
1936 specialization_cid_, | |
1937 TokenPosition::kNoSource)); | |
1938 } | 1846 } |
1939 | 1847 |
1940 | 1848 |
1941 #undef __ | 1849 #undef __ |
1942 | 1850 |
1943 } // namespace dart | 1851 } // namespace dart |
OLD | NEW |