[Interpreter] Save bytecode offset in interpreter stack frames.

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 757 matching lines @@
 // frame.
 void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
   // Open a frame scope to indicate that there is a frame on the stack.  The
   // MANUAL indicates that the scope shouldn't actually generate code to set up
   // the frame (that is done below).
   FrameScope frame_scope(masm, StackFrame::MANUAL);
   __ PushFixedFrame(r1);
   __ add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
   __ push(r3);
 
+  // Push zero for bytecode array offset.
+  __ mov(r0, Operand(0));
+  __ push(r0);
+
   // Get the bytecode array from the function object and load the pointer to the
   // first entry into kInterpreterBytecodeRegister.
   __ ldr(r0, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
   __ ldr(kInterpreterBytecodeArrayRegister,
          FieldMemOperand(r0, SharedFunctionInfo::kFunctionDataOffset));
 
   if (FLAG_debug_code) {
     // Check function data field is actually a BytecodeArray object.
     __ SmiTst(kInterpreterBytecodeArrayRegister);
     __ Assert(ne, kFunctionDataShouldBeBytecodeArrayOnInterpreterEntry);
@@ skipping 46 matching lines @@
     __ b(hs, &ok);
     __ push(kInterpreterBytecodeArrayRegister);
     __ CallRuntime(Runtime::kStackGuard, 0);
     __ pop(kInterpreterBytecodeArrayRegister);
     __ bind(&ok);
   }
 
   // Load accumulator, register file, bytecode offset, dispatch table into
   // registers.
   __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex);
-  __ sub(kInterpreterRegisterFileRegister, fp,
-         Operand(2 * kPointerSize +
-                 StandardFrameConstants::kFixedFrameSizeFromFp));
+  __ add(kInterpreterRegisterFileRegister, fp,
+         Operand(InterpreterFrameConstants::kRegisterFilePointerFromFp));
   __ mov(kInterpreterBytecodeOffsetRegister,
          Operand(BytecodeArray::kHeaderSize - kHeapObjectTag));
   __ LoadRoot(kInterpreterDispatchTableRegister,
               Heap::kInterpreterTableRootIndex);
   __ add(kInterpreterDispatchTableRegister, kInterpreterDispatchTableRegister,
          Operand(FixedArray::kHeaderSize - kHeapObjectTag));
 
   // Dispatch to the first bytecode handler for the function.
   __ ldrb(r1, MemOperand(kInterpreterBytecodeArrayRegister,
                          kInterpreterBytecodeOffsetRegister));
@@ skipping 1094 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM