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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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777 Generate_InterpreterPushArgs(masm, false); | 777 Generate_InterpreterPushArgs(masm, false); |
778 | 778 |
779 // Push return address in preparation for the tail-call. | 779 // Push return address in preparation for the tail-call. |
780 __ PushReturnAddressFrom(kScratchRegister); | 780 __ PushReturnAddressFrom(kScratchRegister); |
781 | 781 |
782 // Call the constructor (rax, rdx, rdi passed on). | 782 // Call the constructor (rax, rdx, rdi passed on). |
783 __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); | 783 __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
784 } | 784 } |
785 | 785 |
786 | 786 |
| 787 static void Generate_InterpreterNotifyDeoptimizedHelper( |
| 788 MacroAssembler* masm, Deoptimizer::BailoutType type) { |
| 789 // Enter an internal frame. |
| 790 { |
| 791 FrameScope scope(masm, StackFrame::INTERNAL); |
| 792 __ Push(kInterpreterAccumulatorRegister); // Save accumulator register. |
| 793 |
| 794 // Pass the deoptimization type to the runtime system. |
| 795 __ Push(Smi::FromInt(static_cast<int>(type))); |
| 796 |
| 797 __ CallRuntime(Runtime::kNotifyDeoptimized, 1); |
| 798 |
| 799 __ Pop(kInterpreterAccumulatorRegister); // Restore accumulator register. |
| 800 // Tear down internal frame. |
| 801 } |
| 802 |
| 803 // Drop state (we don't use these for interpreter deopts) and push PC at top |
| 804 // of stack (to simulate initial call to bytecode handler in interpreter entry |
| 805 // trampoline). |
| 806 __ Pop(rbx); |
| 807 __ Drop(1); |
| 808 __ Push(rbx); |
| 809 |
| 810 // Initialize register file register and dispatch table register. |
| 811 __ movp(kInterpreterRegisterFileRegister, rbp); |
| 812 __ addp(kInterpreterRegisterFileRegister, |
| 813 Immediate(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
| 814 __ LoadRoot(kInterpreterDispatchTableRegister, |
| 815 Heap::kInterpreterTableRootIndex); |
| 816 __ addp(kInterpreterDispatchTableRegister, |
| 817 Immediate(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 818 |
| 819 // Get the context from the frame. |
| 820 // TODO(rmcilroy): Update interpreter frame to expect current context at the |
| 821 // context slot instead of the function context. |
| 822 __ movp(kContextRegister, |
| 823 Operand(kInterpreterRegisterFileRegister, |
| 824 InterpreterFrameConstants::kContextFromRegisterPointer)); |
| 825 |
| 826 // Get the bytecode array pointer from the frame. |
| 827 __ movp(rbx, |
| 828 Operand(kInterpreterRegisterFileRegister, |
| 829 InterpreterFrameConstants::kFunctionFromRegisterPointer)); |
| 830 __ movp(rbx, FieldOperand(rbx, JSFunction::kSharedFunctionInfoOffset)); |
| 831 __ movp(kInterpreterBytecodeArrayRegister, |
| 832 FieldOperand(rbx, SharedFunctionInfo::kFunctionDataOffset)); |
| 833 |
| 834 if (FLAG_debug_code) { |
| 835 // Check function data field is actually a BytecodeArray object. |
| 836 __ AssertNotSmi(kInterpreterBytecodeArrayRegister); |
| 837 __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE, |
| 838 rbx); |
| 839 __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry); |
| 840 } |
| 841 |
| 842 // Get the target bytecode offset from the frame. |
| 843 __ movp( |
| 844 kInterpreterBytecodeOffsetRegister, |
| 845 Operand(kInterpreterRegisterFileRegister, |
| 846 InterpreterFrameConstants::kBytecodeOffsetFromRegisterPointer)); |
| 847 __ SmiToInteger32(kInterpreterBytecodeOffsetRegister, |
| 848 kInterpreterBytecodeOffsetRegister); |
| 849 |
| 850 // Dispatch to the target bytecode. |
| 851 __ movzxbp(rbx, Operand(kInterpreterBytecodeArrayRegister, |
| 852 kInterpreterBytecodeOffsetRegister, times_1, 0)); |
| 853 __ movp(rbx, Operand(kInterpreterDispatchTableRegister, rbx, |
| 854 times_pointer_size, 0)); |
| 855 __ addp(rbx, Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 856 __ jmp(rbx); |
| 857 } |
| 858 |
| 859 |
| 860 void Builtins::Generate_InterpreterNotifyDeoptimized(MacroAssembler* masm) { |
| 861 Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::EAGER); |
| 862 } |
| 863 |
| 864 |
| 865 void Builtins::Generate_InterpreterNotifySoftDeoptimized(MacroAssembler* masm) { |
| 866 Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::SOFT); |
| 867 } |
| 868 |
| 869 |
| 870 void Builtins::Generate_InterpreterNotifyLazyDeoptimized(MacroAssembler* masm) { |
| 871 Generate_InterpreterNotifyDeoptimizedHelper(masm, Deoptimizer::LAZY); |
| 872 } |
| 873 |
| 874 |
787 void Builtins::Generate_CompileLazy(MacroAssembler* masm) { | 875 void Builtins::Generate_CompileLazy(MacroAssembler* masm) { |
788 CallRuntimePassFunction(masm, Runtime::kCompileLazy); | 876 CallRuntimePassFunction(masm, Runtime::kCompileLazy); |
789 GenerateTailCallToReturnedCode(masm); | 877 GenerateTailCallToReturnedCode(masm); |
790 } | 878 } |
791 | 879 |
792 | 880 |
793 void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { | 881 void Builtins::Generate_CompileOptimized(MacroAssembler* masm) { |
794 CallRuntimePassFunction(masm, Runtime::kCompileOptimized_NotConcurrent); | 882 CallRuntimePassFunction(masm, Runtime::kCompileOptimized_NotConcurrent); |
795 GenerateTailCallToReturnedCode(masm); | 883 GenerateTailCallToReturnedCode(masm); |
796 } | 884 } |
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2208 __ ret(0); | 2296 __ ret(0); |
2209 } | 2297 } |
2210 | 2298 |
2211 | 2299 |
2212 #undef __ | 2300 #undef __ |
2213 | 2301 |
2214 } // namespace internal | 2302 } // namespace internal |
2215 } // namespace v8 | 2303 } // namespace v8 |
2216 | 2304 |
2217 #endif // V8_TARGET_ARCH_X64 | 2305 #endif // V8_TARGET_ARCH_X64 |
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