[Interpreter] Fix bytecode offset for stack overflows.

src/arm/builtins-arm.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_ARM
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 993 matching lines @@
                  Heap::kUndefinedValueRootIndex);
   __ b(eq, &bytecode_array_not_present);
   if (FLAG_debug_code) {
     __ SmiTst(kInterpreterBytecodeArrayRegister);
     __ Assert(ne, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry);
     __ CompareObjectType(kInterpreterBytecodeArrayRegister, r0, no_reg,
                          BYTECODE_ARRAY_TYPE);
     __ Assert(eq, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry);
   }
 
-  // Push new.target, bytecode array and zero for bytecode array offset.
-  __ mov(r0, Operand(0));
+  // Load the initial bytecode offset.
+  __ mov(kInterpreterBytecodeOffsetRegister,
+         Operand(BytecodeArray::kHeaderSize - kHeapObjectTag));
+
+  // Push new.target, bytecode array and Smi tagged bytecode array offset.
+  __ SmiTag(r0, kInterpreterBytecodeOffsetRegister);
   __ Push(r3, kInterpreterBytecodeArrayRegister, r0);
 
   // Allocate the local and temporary register file on the stack.
   {
     // Load frame size from the BytecodeArray object.
     __ ldr(r4, FieldMemOperand(kInterpreterBytecodeArrayRegister,
                                BytecodeArray::kFrameSizeOffset));
 
     // Do a stack check to ensure we don't go over the limit.
     Label ok;
@@ skipping 11 matching lines @@
     __ b(&loop_check, al);
     __ bind(&loop_header);
     // TODO(rmcilroy): Consider doing more than one push per loop iteration.
     __ push(r9);
     // Continue loop if not done.
     __ bind(&loop_check);
     __ sub(r4, r4, Operand(kPointerSize), SetCC);
     __ b(&loop_header, ge);
   }
 
-  // Load accumulator, register file, bytecode offset, dispatch table into
-  // registers.
+  // Load accumulator and dispatch table into registers.
   __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex);
-  __ add(r4, fp, Operand(InterpreterFrameConstants::kRegisterFileFromFp));
-  __ mov(kInterpreterBytecodeOffsetRegister,
-         Operand(BytecodeArray::kHeaderSize - kHeapObjectTag));
   __ mov(kInterpreterDispatchTableRegister,
          Operand(ExternalReference::interpreter_dispatch_table_address(
              masm->isolate())));
 
   // Dispatch to the first bytecode handler for the function.
   __ ldrb(r1, MemOperand(kInterpreterBytecodeArrayRegister,
                          kInterpreterBytecodeOffsetRegister));
   __ ldr(ip, MemOperand(kInterpreterDispatchTableRegister, r1, LSL,
                         kPointerSizeLog2));
   __ Call(ip);
@@ skipping 1757 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM