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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_ARM | 7 #if V8_TARGET_ARCH_ARM |
8 | 8 |
9 #include "src/code-factory.h" | 9 #include "src/code-factory.h" |
10 #include "src/code-stubs.h" | 10 #include "src/code-stubs.h" |
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1327 | 1327 |
1328 void FullCodeGenerator::EmitLoadHomeObject(SuperReference* expr) { | 1328 void FullCodeGenerator::EmitLoadHomeObject(SuperReference* expr) { |
1329 Comment cnmt(masm_, "[ SuperReference "); | 1329 Comment cnmt(masm_, "[ SuperReference "); |
1330 | 1330 |
1331 __ ldr(LoadDescriptor::ReceiverRegister(), | 1331 __ ldr(LoadDescriptor::ReceiverRegister(), |
1332 MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 1332 MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
1333 | 1333 |
1334 Handle<Symbol> home_object_symbol(isolate()->heap()->home_object_symbol()); | 1334 Handle<Symbol> home_object_symbol(isolate()->heap()->home_object_symbol()); |
1335 __ Move(LoadDescriptor::NameRegister(), home_object_symbol); | 1335 __ Move(LoadDescriptor::NameRegister(), home_object_symbol); |
1336 | 1336 |
1337 if (FLAG_vector_ics) { | 1337 __ mov(VectorLoadICDescriptor::SlotRegister(), |
1338 __ mov(VectorLoadICDescriptor::SlotRegister(), | 1338 Operand(SmiFromSlot(expr->HomeObjectFeedbackSlot()))); |
1339 Operand(SmiFromSlot(expr->HomeObjectFeedbackSlot()))); | 1339 CallLoadIC(NOT_CONTEXTUAL); |
1340 CallLoadIC(NOT_CONTEXTUAL); | |
1341 } else { | |
1342 CallLoadIC(NOT_CONTEXTUAL, expr->HomeObjectFeedbackId()); | |
1343 } | |
1344 | 1340 |
1345 __ cmp(r0, Operand(isolate()->factory()->undefined_value())); | 1341 __ cmp(r0, Operand(isolate()->factory()->undefined_value())); |
1346 Label done; | 1342 Label done; |
1347 __ b(ne, &done); | 1343 __ b(ne, &done); |
1348 __ CallRuntime(Runtime::kThrowNonMethodError, 0); | 1344 __ CallRuntime(Runtime::kThrowNonMethodError, 0); |
1349 __ bind(&done); | 1345 __ bind(&done); |
1350 } | 1346 } |
1351 | 1347 |
1352 | 1348 |
1353 void FullCodeGenerator::EmitSetHomeObjectIfNeeded(Expression* initializer, | 1349 void FullCodeGenerator::EmitSetHomeObjectIfNeeded(Expression* initializer, |
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1406 __ tst(temp, temp); | 1402 __ tst(temp, temp); |
1407 __ b(ne, slow); | 1403 __ b(ne, slow); |
1408 // Load next context in chain. | 1404 // Load next context in chain. |
1409 __ ldr(next, ContextOperand(next, Context::PREVIOUS_INDEX)); | 1405 __ ldr(next, ContextOperand(next, Context::PREVIOUS_INDEX)); |
1410 __ b(&loop); | 1406 __ b(&loop); |
1411 __ bind(&fast); | 1407 __ bind(&fast); |
1412 } | 1408 } |
1413 | 1409 |
1414 __ ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand()); | 1410 __ ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand()); |
1415 __ mov(LoadDescriptor::NameRegister(), Operand(proxy->var()->name())); | 1411 __ mov(LoadDescriptor::NameRegister(), Operand(proxy->var()->name())); |
1416 if (FLAG_vector_ics) { | 1412 __ mov(VectorLoadICDescriptor::SlotRegister(), |
1417 __ mov(VectorLoadICDescriptor::SlotRegister(), | 1413 Operand(SmiFromSlot(proxy->VariableFeedbackSlot()))); |
1418 Operand(SmiFromSlot(proxy->VariableFeedbackSlot()))); | |
1419 } | |
1420 | 1414 |
1421 ContextualMode mode = (typeof_state == INSIDE_TYPEOF) | 1415 ContextualMode mode = (typeof_state == INSIDE_TYPEOF) |
1422 ? NOT_CONTEXTUAL | 1416 ? NOT_CONTEXTUAL |
1423 : CONTEXTUAL; | 1417 : CONTEXTUAL; |
1424 CallLoadIC(mode); | 1418 CallLoadIC(mode); |
1425 } | 1419 } |
1426 | 1420 |
1427 | 1421 |
1428 MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var, | 1422 MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var, |
1429 Label* slow) { | 1423 Label* slow) { |
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1496 PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS); | 1490 PrepareForBailoutForId(proxy->BeforeId(), NO_REGISTERS); |
1497 Variable* var = proxy->var(); | 1491 Variable* var = proxy->var(); |
1498 | 1492 |
1499 // Three cases: global variables, lookup variables, and all other types of | 1493 // Three cases: global variables, lookup variables, and all other types of |
1500 // variables. | 1494 // variables. |
1501 switch (var->location()) { | 1495 switch (var->location()) { |
1502 case Variable::UNALLOCATED: { | 1496 case Variable::UNALLOCATED: { |
1503 Comment cmnt(masm_, "[ Global variable"); | 1497 Comment cmnt(masm_, "[ Global variable"); |
1504 __ ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand()); | 1498 __ ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand()); |
1505 __ mov(LoadDescriptor::NameRegister(), Operand(var->name())); | 1499 __ mov(LoadDescriptor::NameRegister(), Operand(var->name())); |
1506 if (FLAG_vector_ics) { | 1500 __ mov(VectorLoadICDescriptor::SlotRegister(), |
1507 __ mov(VectorLoadICDescriptor::SlotRegister(), | 1501 Operand(SmiFromSlot(proxy->VariableFeedbackSlot()))); |
1508 Operand(SmiFromSlot(proxy->VariableFeedbackSlot()))); | |
1509 } | |
1510 CallGlobalLoadIC(var->name()); | 1502 CallGlobalLoadIC(var->name()); |
1511 context()->Plug(r0); | 1503 context()->Plug(r0); |
1512 break; | 1504 break; |
1513 } | 1505 } |
1514 | 1506 |
1515 case Variable::PARAMETER: | 1507 case Variable::PARAMETER: |
1516 case Variable::LOCAL: | 1508 case Variable::LOCAL: |
1517 case Variable::CONTEXT: { | 1509 case Variable::CONTEXT: { |
1518 Comment cmnt(masm_, var->IsContextSlot() ? "[ Context variable" | 1510 Comment cmnt(masm_, var->IsContextSlot() ? "[ Context variable" |
1519 : "[ Stack variable"); | 1511 : "[ Stack variable"); |
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2194 __ bind(&l_next); | 2186 __ bind(&l_next); |
2195 | 2187 |
2196 __ LoadRoot(load_name, Heap::knext_stringRootIndex); // "next" | 2188 __ LoadRoot(load_name, Heap::knext_stringRootIndex); // "next" |
2197 __ ldr(r3, MemOperand(sp, 1 * kPointerSize)); // iter | 2189 __ ldr(r3, MemOperand(sp, 1 * kPointerSize)); // iter |
2198 __ Push(load_name, r3, r0); // "next", iter, received | 2190 __ Push(load_name, r3, r0); // "next", iter, received |
2199 | 2191 |
2200 // result = receiver[f](arg); | 2192 // result = receiver[f](arg); |
2201 __ bind(&l_call); | 2193 __ bind(&l_call); |
2202 __ ldr(load_receiver, MemOperand(sp, kPointerSize)); | 2194 __ ldr(load_receiver, MemOperand(sp, kPointerSize)); |
2203 __ ldr(load_name, MemOperand(sp, 2 * kPointerSize)); | 2195 __ ldr(load_name, MemOperand(sp, 2 * kPointerSize)); |
2204 if (FLAG_vector_ics) { | 2196 __ mov(VectorLoadICDescriptor::SlotRegister(), |
2205 __ mov(VectorLoadICDescriptor::SlotRegister(), | 2197 Operand(SmiFromSlot(expr->KeyedLoadFeedbackSlot()))); |
2206 Operand(SmiFromSlot(expr->KeyedLoadFeedbackSlot()))); | |
2207 } | |
2208 Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate()).code(); | 2198 Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate()).code(); |
2209 CallIC(ic, TypeFeedbackId::None()); | 2199 CallIC(ic, TypeFeedbackId::None()); |
2210 __ mov(r1, r0); | 2200 __ mov(r1, r0); |
2211 __ str(r1, MemOperand(sp, 2 * kPointerSize)); | 2201 __ str(r1, MemOperand(sp, 2 * kPointerSize)); |
2212 CallFunctionStub stub(isolate(), 1, CALL_AS_METHOD); | 2202 CallFunctionStub stub(isolate(), 1, CALL_AS_METHOD); |
2213 __ CallStub(&stub); | 2203 __ CallStub(&stub); |
2214 | 2204 |
2215 __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 2205 __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
2216 __ Drop(1); // The function is still on the stack; drop it. | 2206 __ Drop(1); // The function is still on the stack; drop it. |
2217 | 2207 |
2218 // if (!result.done) goto l_try; | 2208 // if (!result.done) goto l_try; |
2219 __ bind(&l_loop); | 2209 __ bind(&l_loop); |
2220 __ Move(load_receiver, r0); | 2210 __ Move(load_receiver, r0); |
2221 | 2211 |
2222 __ push(load_receiver); // save result | 2212 __ push(load_receiver); // save result |
2223 __ LoadRoot(load_name, Heap::kdone_stringRootIndex); // "done" | 2213 __ LoadRoot(load_name, Heap::kdone_stringRootIndex); // "done" |
2224 if (FLAG_vector_ics) { | 2214 __ mov(VectorLoadICDescriptor::SlotRegister(), |
2225 __ mov(VectorLoadICDescriptor::SlotRegister(), | 2215 Operand(SmiFromSlot(expr->DoneFeedbackSlot()))); |
2226 Operand(SmiFromSlot(expr->DoneFeedbackSlot()))); | |
2227 } | |
2228 CallLoadIC(NOT_CONTEXTUAL); // r0=result.done | 2216 CallLoadIC(NOT_CONTEXTUAL); // r0=result.done |
2229 Handle<Code> bool_ic = ToBooleanStub::GetUninitialized(isolate()); | 2217 Handle<Code> bool_ic = ToBooleanStub::GetUninitialized(isolate()); |
2230 CallIC(bool_ic); | 2218 CallIC(bool_ic); |
2231 __ cmp(r0, Operand(0)); | 2219 __ cmp(r0, Operand(0)); |
2232 __ b(eq, &l_try); | 2220 __ b(eq, &l_try); |
2233 | 2221 |
2234 // result.value | 2222 // result.value |
2235 __ pop(load_receiver); // result | 2223 __ pop(load_receiver); // result |
2236 __ LoadRoot(load_name, Heap::kvalue_stringRootIndex); // "value" | 2224 __ LoadRoot(load_name, Heap::kvalue_stringRootIndex); // "value" |
2237 if (FLAG_vector_ics) { | 2225 __ mov(VectorLoadICDescriptor::SlotRegister(), |
2238 __ mov(VectorLoadICDescriptor::SlotRegister(), | 2226 Operand(SmiFromSlot(expr->ValueFeedbackSlot()))); |
2239 Operand(SmiFromSlot(expr->ValueFeedbackSlot()))); | |
2240 } | |
2241 CallLoadIC(NOT_CONTEXTUAL); // r0=result.value | 2227 CallLoadIC(NOT_CONTEXTUAL); // r0=result.value |
2242 context()->DropAndPlug(2, r0); // drop iter and g | 2228 context()->DropAndPlug(2, r0); // drop iter and g |
2243 break; | 2229 break; |
2244 } | 2230 } |
2245 } | 2231 } |
2246 } | 2232 } |
2247 | 2233 |
2248 | 2234 |
2249 void FullCodeGenerator::EmitGeneratorResume(Expression *generator, | 2235 void FullCodeGenerator::EmitGeneratorResume(Expression *generator, |
2250 Expression *value, | 2236 Expression *value, |
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2382 r2, r3, kLRHasBeenSaved, kDontSaveFPRegs); | 2368 r2, r3, kLRHasBeenSaved, kDontSaveFPRegs); |
2383 } | 2369 } |
2384 | 2370 |
2385 | 2371 |
2386 void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) { | 2372 void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) { |
2387 SetSourcePosition(prop->position()); | 2373 SetSourcePosition(prop->position()); |
2388 Literal* key = prop->key()->AsLiteral(); | 2374 Literal* key = prop->key()->AsLiteral(); |
2389 DCHECK(!prop->IsSuperAccess()); | 2375 DCHECK(!prop->IsSuperAccess()); |
2390 | 2376 |
2391 __ mov(LoadDescriptor::NameRegister(), Operand(key->value())); | 2377 __ mov(LoadDescriptor::NameRegister(), Operand(key->value())); |
2392 if (FLAG_vector_ics) { | 2378 __ mov(VectorLoadICDescriptor::SlotRegister(), |
2393 __ mov(VectorLoadICDescriptor::SlotRegister(), | 2379 Operand(SmiFromSlot(prop->PropertyFeedbackSlot()))); |
2394 Operand(SmiFromSlot(prop->PropertyFeedbackSlot()))); | 2380 CallLoadIC(NOT_CONTEXTUAL); |
2395 CallLoadIC(NOT_CONTEXTUAL); | |
2396 } else { | |
2397 CallLoadIC(NOT_CONTEXTUAL, prop->PropertyFeedbackId()); | |
2398 } | |
2399 } | 2381 } |
2400 | 2382 |
2401 | 2383 |
2402 void FullCodeGenerator::EmitNamedSuperPropertyLoad(Property* prop) { | 2384 void FullCodeGenerator::EmitNamedSuperPropertyLoad(Property* prop) { |
2403 // Stack: receiver, home_object. | 2385 // Stack: receiver, home_object. |
2404 SetSourcePosition(prop->position()); | 2386 SetSourcePosition(prop->position()); |
2405 Literal* key = prop->key()->AsLiteral(); | 2387 Literal* key = prop->key()->AsLiteral(); |
2406 DCHECK(!key->value()->IsSmi()); | 2388 DCHECK(!key->value()->IsSmi()); |
2407 DCHECK(prop->IsSuperAccess()); | 2389 DCHECK(prop->IsSuperAccess()); |
2408 | 2390 |
2409 __ Push(key->value()); | 2391 __ Push(key->value()); |
2410 __ CallRuntime(Runtime::kLoadFromSuper, 3); | 2392 __ CallRuntime(Runtime::kLoadFromSuper, 3); |
2411 } | 2393 } |
2412 | 2394 |
2413 | 2395 |
2414 void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) { | 2396 void FullCodeGenerator::EmitKeyedPropertyLoad(Property* prop) { |
2415 SetSourcePosition(prop->position()); | 2397 SetSourcePosition(prop->position()); |
2416 Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate()).code(); | 2398 Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate()).code(); |
2417 if (FLAG_vector_ics) { | 2399 __ mov(VectorLoadICDescriptor::SlotRegister(), |
2418 __ mov(VectorLoadICDescriptor::SlotRegister(), | 2400 Operand(SmiFromSlot(prop->PropertyFeedbackSlot()))); |
2419 Operand(SmiFromSlot(prop->PropertyFeedbackSlot()))); | 2401 CallIC(ic); |
2420 CallIC(ic); | |
2421 } else { | |
2422 CallIC(ic, prop->PropertyFeedbackId()); | |
2423 } | |
2424 } | 2402 } |
2425 | 2403 |
2426 | 2404 |
2427 void FullCodeGenerator::EmitKeyedSuperPropertyLoad(Property* prop) { | 2405 void FullCodeGenerator::EmitKeyedSuperPropertyLoad(Property* prop) { |
2428 // Stack: receiver, home_object, key. | 2406 // Stack: receiver, home_object, key. |
2429 SetSourcePosition(prop->position()); | 2407 SetSourcePosition(prop->position()); |
2430 | 2408 |
2431 __ CallRuntime(Runtime::kLoadKeyedFromSuper, 3); | 2409 __ CallRuntime(Runtime::kLoadKeyedFromSuper, 3); |
2432 } | 2410 } |
2433 | 2411 |
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4626 | 4604 |
4627 void FullCodeGenerator::EmitLoadJSRuntimeFunction(CallRuntime* expr) { | 4605 void FullCodeGenerator::EmitLoadJSRuntimeFunction(CallRuntime* expr) { |
4628 // Push the builtins object as the receiver. | 4606 // Push the builtins object as the receiver. |
4629 Register receiver = LoadDescriptor::ReceiverRegister(); | 4607 Register receiver = LoadDescriptor::ReceiverRegister(); |
4630 __ ldr(receiver, GlobalObjectOperand()); | 4608 __ ldr(receiver, GlobalObjectOperand()); |
4631 __ ldr(receiver, FieldMemOperand(receiver, GlobalObject::kBuiltinsOffset)); | 4609 __ ldr(receiver, FieldMemOperand(receiver, GlobalObject::kBuiltinsOffset)); |
4632 __ push(receiver); | 4610 __ push(receiver); |
4633 | 4611 |
4634 // Load the function from the receiver. | 4612 // Load the function from the receiver. |
4635 __ mov(LoadDescriptor::NameRegister(), Operand(expr->name())); | 4613 __ mov(LoadDescriptor::NameRegister(), Operand(expr->name())); |
4636 if (FLAG_vector_ics) { | 4614 __ mov(VectorLoadICDescriptor::SlotRegister(), |
4637 __ mov(VectorLoadICDescriptor::SlotRegister(), | 4615 Operand(SmiFromSlot(expr->CallRuntimeFeedbackSlot()))); |
4638 Operand(SmiFromSlot(expr->CallRuntimeFeedbackSlot()))); | 4616 CallLoadIC(NOT_CONTEXTUAL); |
4639 CallLoadIC(NOT_CONTEXTUAL); | |
4640 } else { | |
4641 CallLoadIC(NOT_CONTEXTUAL, expr->CallRuntimeFeedbackId()); | |
4642 } | |
4643 } | 4617 } |
4644 | 4618 |
4645 | 4619 |
4646 void FullCodeGenerator::EmitCallJSRuntimeFunction(CallRuntime* expr) { | 4620 void FullCodeGenerator::EmitCallJSRuntimeFunction(CallRuntime* expr) { |
4647 ZoneList<Expression*>* args = expr->arguments(); | 4621 ZoneList<Expression*>* args = expr->arguments(); |
4648 int arg_count = args->length(); | 4622 int arg_count = args->length(); |
4649 | 4623 |
4650 // Record source position of the IC call. | 4624 // Record source position of the IC call. |
4651 SetSourcePosition(expr->position()); | 4625 SetSourcePosition(expr->position()); |
4652 CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS); | 4626 CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS); |
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5065 | 5039 |
5066 | 5040 |
5067 void FullCodeGenerator::VisitForTypeofValue(Expression* expr) { | 5041 void FullCodeGenerator::VisitForTypeofValue(Expression* expr) { |
5068 DCHECK(!context()->IsEffect()); | 5042 DCHECK(!context()->IsEffect()); |
5069 DCHECK(!context()->IsTest()); | 5043 DCHECK(!context()->IsTest()); |
5070 VariableProxy* proxy = expr->AsVariableProxy(); | 5044 VariableProxy* proxy = expr->AsVariableProxy(); |
5071 if (proxy != NULL && proxy->var()->IsUnallocated()) { | 5045 if (proxy != NULL && proxy->var()->IsUnallocated()) { |
5072 Comment cmnt(masm_, "[ Global variable"); | 5046 Comment cmnt(masm_, "[ Global variable"); |
5073 __ ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand()); | 5047 __ ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand()); |
5074 __ mov(LoadDescriptor::NameRegister(), Operand(proxy->name())); | 5048 __ mov(LoadDescriptor::NameRegister(), Operand(proxy->name())); |
5075 if (FLAG_vector_ics) { | 5049 __ mov(VectorLoadICDescriptor::SlotRegister(), |
5076 __ mov(VectorLoadICDescriptor::SlotRegister(), | 5050 Operand(SmiFromSlot(proxy->VariableFeedbackSlot()))); |
5077 Operand(SmiFromSlot(proxy->VariableFeedbackSlot()))); | |
5078 } | |
5079 // Use a regular load, not a contextual load, to avoid a reference | 5051 // Use a regular load, not a contextual load, to avoid a reference |
5080 // error. | 5052 // error. |
5081 CallLoadIC(NOT_CONTEXTUAL); | 5053 CallLoadIC(NOT_CONTEXTUAL); |
5082 PrepareForBailout(expr, TOS_REG); | 5054 PrepareForBailout(expr, TOS_REG); |
5083 context()->Plug(r0); | 5055 context()->Plug(r0); |
5084 } else if (proxy != NULL && proxy->var()->IsLookupSlot()) { | 5056 } else if (proxy != NULL && proxy->var()->IsLookupSlot()) { |
5085 Comment cmnt(masm_, "[ Lookup slot"); | 5057 Comment cmnt(masm_, "[ Lookup slot"); |
5086 Label done, slow; | 5058 Label done, slow; |
5087 | 5059 |
5088 // Generate code for loading from variables potentially shadowed | 5060 // Generate code for loading from variables potentially shadowed |
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5511 | 5483 |
5512 DCHECK(interrupt_address == | 5484 DCHECK(interrupt_address == |
5513 isolate->builtins()->OsrAfterStackCheck()->entry()); | 5485 isolate->builtins()->OsrAfterStackCheck()->entry()); |
5514 return OSR_AFTER_STACK_CHECK; | 5486 return OSR_AFTER_STACK_CHECK; |
5515 } | 5487 } |
5516 | 5488 |
5517 | 5489 |
5518 } } // namespace v8::internal | 5490 } } // namespace v8::internal |
5519 | 5491 |
5520 #endif // V8_TARGET_ARCH_ARM | 5492 #endif // V8_TARGET_ARCH_ARM |
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