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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_ARM 5 #if V8_TARGET_ARCH_ARM
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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980 // frames.h for its layout. 980 // frames.h for its layout.
981 void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) { 981 void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
982 // Open a frame scope to indicate that there is a frame on the stack. The 982 // Open a frame scope to indicate that there is a frame on the stack. The
983 // MANUAL indicates that the scope shouldn't actually generate code to set up 983 // MANUAL indicates that the scope shouldn't actually generate code to set up
984 // the frame (that is done below). 984 // the frame (that is done below).
985 FrameScope frame_scope(masm, StackFrame::MANUAL); 985 FrameScope frame_scope(masm, StackFrame::MANUAL);
986 __ PushFixedFrame(r1); 986 __ PushFixedFrame(r1);
987 __ add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp)); 987 __ add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
988 __ push(r3); 988 __ push(r3);
989 989
990 // Push dispatch table pointer.
991 __ mov(r0, Operand(ExternalReference::interpreter_dispatch_table_address(
992 masm->isolate())));
993 __ push(r0);
990 // Push zero for bytecode array offset. 994 // Push zero for bytecode array offset.
991 __ mov(r0, Operand(0)); 995 __ mov(r0, Operand(0));
992 __ push(r0); 996 __ push(r0);
993 997
994 // Get the bytecode array from the function object and load the pointer to the 998 // Get the bytecode array from the function object and load the pointer to the
995 // first entry into kInterpreterBytecodeRegister. 999 // first entry into kInterpreterBytecodeRegister.
996 __ ldr(r0, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset)); 1000 __ ldr(r0, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
997 __ ldr(kInterpreterBytecodeArrayRegister, 1001 __ ldr(kInterpreterBytecodeArrayRegister,
998 FieldMemOperand(r0, SharedFunctionInfo::kFunctionDataOffset)); 1002 FieldMemOperand(r0, SharedFunctionInfo::kFunctionDataOffset));
999 1003
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2682 } 2686 }
2683 } 2687 }
2684 2688
2685 2689
2686 #undef __ 2690 #undef __
2687 2691
2688 } // namespace internal 2692 } // namespace internal
2689 } // namespace v8 2693 } // namespace v8
2690 2694
2691 #endif // V8_TARGET_ARCH_ARM 2695 #endif // V8_TARGET_ARCH_ARM
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