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Issue 1684073002: [Interpreter] Save and restore dispatch table pointer during calls. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@int_assm
Patch Set: 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_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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963 void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { 963 void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
964 // Open a frame scope to indicate that there is a frame on the stack. The 964 // Open a frame scope to indicate that there is a frame on the stack. The
965 // MANUAL indicates that the scope shouldn't actually generate code to set up 965 // MANUAL indicates that the scope shouldn't actually generate code to set up
966 // the frame (that is done below). 966 // the frame (that is done below).
967 FrameScope frame_scope(masm, StackFrame::MANUAL); 967 FrameScope frame_scope(masm, StackFrame::MANUAL);
968 968
969 __ Push(ra, fp, cp, a1); 969 __ Push(ra, fp, cp, a1);
970 __ Daddu(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); 970 __ Daddu(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
971 __ Push(a3); 971 __ Push(a3);
972 972
973 // Push dispatch table pointer.
974 __ li(a0, Operand(ExternalReference::interpreter_dispatch_table_address(
975 masm->isolate())));
976 __ Push(a0);
973 // Push zero for bytecode array offset. 977 // Push zero for bytecode array offset.
974 __ Push(zero_reg); 978 __ Push(zero_reg);
975 979
976 // Get the bytecode array from the function object and load the pointer to the 980 // Get the bytecode array from the function object and load the pointer to the
977 // first entry into kInterpreterBytecodeRegister. 981 // first entry into kInterpreterBytecodeRegister.
978 __ ld(a0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); 982 __ ld(a0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
979 __ ld(kInterpreterBytecodeArrayRegister, 983 __ ld(kInterpreterBytecodeArrayRegister,
980 FieldMemOperand(a0, SharedFunctionInfo::kFunctionDataOffset)); 984 FieldMemOperand(a0, SharedFunctionInfo::kFunctionDataOffset));
981 985
982 if (FLAG_debug_code) { 986 if (FLAG_debug_code) {
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2756 } 2760 }
2757 } 2761 }
2758 2762
2759 2763
2760 #undef __ 2764 #undef __
2761 2765
2762 } // namespace internal 2766 } // namespace internal
2763 } // namespace v8 2767 } // namespace v8
2764 2768
2765 #endif // V8_TARGET_ARCH_MIPS64 2769 #endif // V8_TARGET_ARCH_MIPS64
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