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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_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
6 | 6 |
7 #include "src/codegen.h" | 7 #include "src/codegen.h" |
8 #include "src/debug/debug.h" | 8 #include "src/debug/debug.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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931 // o a1: the JS function object being called. | 931 // o a1: the JS function object being called. |
932 // o a3: the new target | 932 // o a3: the new target |
933 // o cp: our context | 933 // o cp: our context |
934 // o fp: the caller's frame pointer | 934 // o fp: the caller's frame pointer |
935 // o sp: stack pointer | 935 // o sp: stack pointer |
936 // o ra: return address | 936 // o ra: return address |
937 // | 937 // |
938 // The function builds an interpreter frame. See InterpreterFrameConstants in | 938 // The function builds an interpreter frame. See InterpreterFrameConstants in |
939 // frames.h for its layout. | 939 // frames.h for its layout. |
940 void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { | 940 void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { |
| 941 ProfileEntryHookStub::MaybeCallEntryHook(masm); |
| 942 |
941 // Open a frame scope to indicate that there is a frame on the stack. The | 943 // Open a frame scope to indicate that there is a frame on the stack. The |
942 // MANUAL indicates that the scope shouldn't actually generate code to set up | 944 // MANUAL indicates that the scope shouldn't actually generate code to set up |
943 // the frame (that is done below). | 945 // the frame (that is done below). |
944 FrameScope frame_scope(masm, StackFrame::MANUAL); | 946 FrameScope frame_scope(masm, StackFrame::MANUAL); |
945 __ PushStandardFrame(a1); | 947 __ PushStandardFrame(a1); |
946 | 948 |
947 // Get the bytecode array from the function object and load the pointer to the | 949 // Get the bytecode array from the function object and load the pointer to the |
948 // first entry into kInterpreterBytecodeRegister. | 950 // first entry into kInterpreterBytecodeRegister. |
949 __ ld(a0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); | 951 __ ld(a0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
950 Label load_debug_bytecode_array, bytecode_array_loaded; | 952 Label load_debug_bytecode_array, bytecode_array_loaded; |
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991 __ Branch(&loop_check); | 993 __ Branch(&loop_check); |
992 __ bind(&loop_header); | 994 __ bind(&loop_header); |
993 // TODO(rmcilroy): Consider doing more than one push per loop iteration. | 995 // TODO(rmcilroy): Consider doing more than one push per loop iteration. |
994 __ push(a5); | 996 __ push(a5); |
995 // Continue loop if not done. | 997 // Continue loop if not done. |
996 __ bind(&loop_check); | 998 __ bind(&loop_check); |
997 __ Dsubu(a4, a4, Operand(kPointerSize)); | 999 __ Dsubu(a4, a4, Operand(kPointerSize)); |
998 __ Branch(&loop_header, ge, a4, Operand(zero_reg)); | 1000 __ Branch(&loop_header, ge, a4, Operand(zero_reg)); |
999 } | 1001 } |
1000 | 1002 |
1001 // TODO(rmcilroy): List of things not currently dealt with here but done in | |
1002 // fullcodegen's prologue: | |
1003 // - Call ProfileEntryHookStub when isolate has a function_entry_hook. | |
1004 // - Code aging of the BytecodeArray object. | |
1005 | |
1006 // Load bytecode offset and dispatch table into registers. | 1003 // Load bytecode offset and dispatch table into registers. |
1007 __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); | 1004 __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex); |
1008 __ Daddu(kInterpreterRegisterFileRegister, fp, | 1005 __ Daddu(kInterpreterRegisterFileRegister, fp, |
1009 Operand(InterpreterFrameConstants::kRegisterFilePointerFromFp)); | 1006 Operand(InterpreterFrameConstants::kRegisterFilePointerFromFp)); |
1010 __ li(kInterpreterBytecodeOffsetRegister, | 1007 __ li(kInterpreterBytecodeOffsetRegister, |
1011 Operand(BytecodeArray::kHeaderSize - kHeapObjectTag)); | 1008 Operand(BytecodeArray::kHeaderSize - kHeapObjectTag)); |
1012 __ li(kInterpreterDispatchTableRegister, | 1009 __ li(kInterpreterDispatchTableRegister, |
1013 Operand(ExternalReference::interpreter_dispatch_table_address( | 1010 Operand(ExternalReference::interpreter_dispatch_table_address( |
1014 masm->isolate()))); | 1011 masm->isolate()))); |
1015 | 1012 |
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2846 } | 2843 } |
2847 } | 2844 } |
2848 | 2845 |
2849 | 2846 |
2850 #undef __ | 2847 #undef __ |
2851 | 2848 |
2852 } // namespace internal | 2849 } // namespace internal |
2853 } // namespace v8 | 2850 } // namespace v8 |
2854 | 2851 |
2855 #endif // V8_TARGET_ARCH_MIPS64 | 2852 #endif // V8_TARGET_ARCH_MIPS64 |
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