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Issue 1665853002: [Interpreter] Add explicit StackCheck bytecodes on function entry and back branches. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Fix unittests. Created 4 years, 10 months ago
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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 #if V8_TARGET_ARCH_X64 5 #if V8_TARGET_ARCH_X64
6 6
7 #include "src/code-factory.h" 7 #include "src/code-factory.h"
8 #include "src/codegen.h" 8 #include "src/codegen.h"
9 #include "src/deoptimizer.h" 9 #include "src/deoptimizer.h"
10 #include "src/full-codegen/full-codegen.h" 10 #include "src/full-codegen/full-codegen.h"
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663 __ j(greater_equal, &loop_header, Label::kNear); 663 __ j(greater_equal, &loop_header, Label::kNear);
664 } 664 }
665 665
666 // TODO(rmcilroy): List of things not currently dealt with here but done in 666 // TODO(rmcilroy): List of things not currently dealt with here but done in
667 // fullcodegen's prologue: 667 // fullcodegen's prologue:
668 // - Support profiler (specifically profiling_counter). 668 // - Support profiler (specifically profiling_counter).
669 // - Call ProfileEntryHookStub when isolate has a function_entry_hook. 669 // - Call ProfileEntryHookStub when isolate has a function_entry_hook.
670 // - Allow simulator stop operations if FLAG_stop_at is set. 670 // - Allow simulator stop operations if FLAG_stop_at is set.
671 // - Code aging of the BytecodeArray object. 671 // - Code aging of the BytecodeArray object.
672 672
673 // Perform stack guard check.
674 {
675 Label ok;
676 __ CompareRoot(rsp, Heap::kStackLimitRootIndex);
677 __ j(above_equal, &ok, Label::kNear);
678 __ Push(kInterpreterBytecodeArrayRegister);
679 __ CallRuntime(Runtime::kStackGuard);
680 __ Pop(kInterpreterBytecodeArrayRegister);
681 __ bind(&ok);
682 }
683
684 // Load accumulator, register file, bytecode offset, dispatch table into 673 // Load accumulator, register file, bytecode offset, dispatch table into
685 // registers. 674 // registers.
686 __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); 675 __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex);
687 __ movp(kInterpreterRegisterFileRegister, rbp); 676 __ movp(kInterpreterRegisterFileRegister, rbp);
688 __ addp(kInterpreterRegisterFileRegister, 677 __ addp(kInterpreterRegisterFileRegister,
689 Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp)); 678 Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp));
690 __ movp(kInterpreterBytecodeOffsetRegister, 679 __ movp(kInterpreterBytecodeOffsetRegister,
691 Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag)); 680 Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag));
692 __ LoadRoot(kInterpreterDispatchTableRegister, 681 __ LoadRoot(kInterpreterDispatchTableRegister,
693 Heap::kInterpreterTableRootIndex); 682 Heap::kInterpreterTableRootIndex);
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2865 __ ret(0); 2854 __ ret(0);
2866 } 2855 }
2867 2856
2868 2857
2869 #undef __ 2858 #undef __
2870 2859
2871 } // namespace internal 2860 } // namespace internal
2872 } // namespace v8 2861 } // namespace v8
2873 2862
2874 #endif // V8_TARGET_ARCH_X64 2863 #endif // V8_TARGET_ARCH_X64
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