[Interpreter] Fix bytecode offset for stack overflows.

src/x64/builtins-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 631 matching lines @@
   __ CompareRoot(kInterpreterBytecodeArrayRegister,
                  Heap::kUndefinedValueRootIndex);
   __ j(equal, &bytecode_array_not_present);
   if (FLAG_debug_code) {
     __ AssertNotSmi(kInterpreterBytecodeArrayRegister);
     __ CmpObjectType(kInterpreterBytecodeArrayRegister, BYTECODE_ARRAY_TYPE,
                      rax);
     __ Assert(equal, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry);
   }
 
-  // Push bytecode array.
+  // Load initial bytecode offset.
+  __ movp(kInterpreterBytecodeOffsetRegister,
+          Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag));
+
+  // Push bytecode array and Smi tagged bytecode offset.
   __ Push(kInterpreterBytecodeArrayRegister);
-  // Push zero for bytecode array offset.
-  __ Push(Immediate(0));
+  __ Integer32ToSmi(rcx, kInterpreterBytecodeOffsetRegister);
+  __ Push(rcx);
 
   // Allocate the local and temporary register file on the stack.
   {
     // Load frame size from the BytecodeArray object.
     __ movl(rcx, FieldOperand(kInterpreterBytecodeArrayRegister,
                               BytecodeArray::kFrameSizeOffset));
 
     // Do a stack check to ensure we don't go over the limit.
     Label ok;
     __ movp(rdx, rsp);
@@ skipping 10 matching lines @@
     __ j(always, &loop_check);
     __ bind(&loop_header);
     // TODO(rmcilroy): Consider doing more than one push per loop iteration.
     __ Push(rdx);
     // Continue loop if not done.
     __ bind(&loop_check);
     __ subp(rcx, Immediate(kPointerSize));
     __ j(greater_equal, &loop_header, Label::kNear);
   }
 
-  // Load accumulator, register file, bytecode offset, dispatch table into
-  // registers.
+  // Load accumulator and dispatch table into registers.
   __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex);
-  __ movp(r11, rbp);
-  __ addp(r11, Immediate(InterpreterFrameConstants::kRegisterFileFromFp));
-  __ movp(kInterpreterBytecodeOffsetRegister,
-          Immediate(BytecodeArray::kHeaderSize - kHeapObjectTag));
   __ Move(
       kInterpreterDispatchTableRegister,
       ExternalReference::interpreter_dispatch_table_address(masm->isolate()));
 
   // Dispatch to the first bytecode handler for the function.
   __ movzxbp(rbx, Operand(kInterpreterBytecodeArrayRegister,
                           kInterpreterBytecodeOffsetRegister, times_1, 0));
   __ movp(rbx, Operand(kInterpreterDispatchTableRegister, rbx,
                        times_pointer_size, 0));
   __ call(rbx);
@@ skipping 2263 matching lines @@
   __ ret(0);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64