[deoptimizer] Simplify handling of bottommost output frames.

src/deoptimizer.h

 // 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.
 
 #ifndef V8_DEOPTIMIZER_H_
 #define V8_DEOPTIMIZER_H_
 
 #include "src/allocation.h"
 #include "src/macro-assembler.h"
 
@@ skipping 590 matching lines @@
       TranslatedFrame::iterator* iterator, int* input_index, int frame_index,
       unsigned output_offset, const char* debug_hint_string = nullptr,
       Address output_address_for_materialization = nullptr);
   void WriteValueToOutput(Object* value, int input_index, int frame_index,
                           unsigned output_offset,
                           const char* debug_hint_string);
   void DebugPrintOutputSlot(intptr_t value, int frame_index,
                             unsigned output_offset,
                             const char* debug_hint_string);
 
+  unsigned ComputeInputFrameAboveFpFixedSize() const;
   unsigned ComputeInputFrameSize() const;
   static unsigned ComputeJavascriptFixedSize(SharedFunctionInfo* shared);
   static unsigned ComputeInterpretedFixedSize(SharedFunctionInfo* shared);
 
   static unsigned ComputeIncomingArgumentSize(SharedFunctionInfo* shared);
   static unsigned ComputeOutgoingArgumentSize(Code* code, unsigned bailout_id);
 
   Object* ComputeLiteral(int index) const;
 
   static void GenerateDeoptimizationEntries(
@@ skipping 39 matching lines @@
 
   // Input frame description.
   FrameDescription* input_;
   // Number of output frames.
   int output_count_;
   // Number of output js frames.
   int jsframe_count_;
   // Array of output frame descriptions.
   FrameDescription** output_;
 
+  // Caller frame details computed from input frame.
+  intptr_t caller_frame_top_;
+  intptr_t caller_fp_;
+  intptr_t caller_pc_;
+  intptr_t caller_constant_pool_;
+  intptr_t input_frame_context_;
+
   // Key for lookup of previously materialized objects
-  Address stack_fp_;
+  intptr_t stack_fp_;
 
   TranslatedState translated_state_;
   struct ValueToMaterialize {
     Address output_slot_address_;
     TranslatedFrame::iterator value_;
   };
   std::vector<ValueToMaterialize> values_to_materialize_;
 
 #ifdef DEBUG
   DisallowHeapAllocation* disallow_heap_allocation_;
@@ skipping 417 matching lines @@
   std::vector<Handle<Object> > expression_stack_;
   int source_position_;
 
   friend class Deoptimizer;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_DEOPTIMIZER_H_