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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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_ARM64 | 7 #if V8_TARGET_ARCH_ARM64 |
| 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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| 449 __ B(pl, &ok); | 449 __ B(pl, &ok); |
| 450 __ Push(x0); | 450 __ Push(x0); |
| 451 __ Call(isolate()->builtins()->InterruptCheck(), | 451 __ Call(isolate()->builtins()->InterruptCheck(), |
| 452 RelocInfo::CODE_TARGET); | 452 RelocInfo::CODE_TARGET); |
| 453 __ Pop(x0); | 453 __ Pop(x0); |
| 454 EmitProfilingCounterReset(); | 454 EmitProfilingCounterReset(); |
| 455 __ Bind(&ok); | 455 __ Bind(&ok); |
| 456 | 456 |
| 457 // Make sure that the constant pool is not emitted inside of the return | 457 // Make sure that the constant pool is not emitted inside of the return |
| 458 // sequence. This sequence can get patched when the debugger is used. See | 458 // sequence. This sequence can get patched when the debugger is used. See |
| 459 // debug-arm64.cc:BreakLocationIterator::SetDebugBreakAtReturn(). | 459 // debug-arm64.cc:BreakLocation::SetDebugBreakAtReturn(). |
| 460 { | 460 { |
| 461 InstructionAccurateScope scope(masm_, | 461 InstructionAccurateScope scope(masm_, |
| 462 Assembler::kJSRetSequenceInstructions); | 462 Assembler::kJSReturnSequenceInstructions); |
| 463 CodeGenerator::RecordPositions(masm_, function()->end_position() - 1); | 463 CodeGenerator::RecordPositions(masm_, function()->end_position() - 1); |
| 464 __ RecordJSReturn(); | 464 __ RecordJSReturn(); |
| 465 // This code is generated using Assembler methods rather than Macro | 465 // This code is generated using Assembler methods rather than Macro |
| 466 // Assembler methods because it will be patched later on, and so the size | 466 // Assembler methods because it will be patched later on, and so the size |
| 467 // of the generated code must be consistent. | 467 // of the generated code must be consistent. |
| 468 const Register& current_sp = __ StackPointer(); | 468 const Register& current_sp = __ StackPointer(); |
| 469 // Nothing ensures 16 bytes alignment here. | 469 // Nothing ensures 16 bytes alignment here. |
| 470 DCHECK(!current_sp.Is(csp)); | 470 DCHECK(!current_sp.Is(csp)); |
| 471 __ mov(current_sp, fp); | 471 __ mov(current_sp, fp); |
| 472 int no_frame_start = masm_->pc_offset(); | 472 int no_frame_start = masm_->pc_offset(); |
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| 5480 return previous_; | 5480 return previous_; |
| 5481 } | 5481 } |
| 5482 | 5482 |
| 5483 | 5483 |
| 5484 #undef __ | 5484 #undef __ |
| 5485 | 5485 |
| 5486 | 5486 |
| 5487 } } // namespace v8::internal | 5487 } } // namespace v8::internal |
| 5488 | 5488 |
| 5489 #endif // V8_TARGET_ARCH_ARM64 | 5489 #endif // V8_TARGET_ARCH_ARM64 |
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