[v8-dev] ARM: safepoints frame optimization

src/lithium.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 650 matching lines @@
   }
 
   Zone* zone() const { return info_->zone(); }
 
   Handle<Code> Codegen();
 
   void set_allocated_double_registers(BitVector* allocated_registers);
   BitVector* allocated_double_registers() {
     return allocated_double_registers_;
   }
+  RegList safepoints_registers() { return safepoints_registers_; }
+  void set_safepoints_registers(RegList safepoints_registers) {
+    safepoints_registers_ = safepoints_registers;
+  }
+  void add_safepoints_registers(RegList safepoints_registers) {
+    safepoints_registers_ |= safepoints_registers;
+  }
+  RegList safepoints_double_registers() { return safepoints_double_registers_; }
+  void set_safepoints_double_registers(RegList safepoints_double_registers) {
+    safepoints_double_registers_ = safepoints_double_registers;
+  }
+  void add_safepoints_double_registers(RegList safepoints_double_registers) {
+    safepoints_double_registers_ |= safepoints_double_registers;
+  }
 
  protected:
   LChunk(CompilationInfo* info, HGraph* graph);
 
   int spill_slot_count_;
 
  private:
   CompilationInfo* info_;
   HGraph* const graph_;
   BitVector* allocated_double_registers_;
+  RegList safepoints_registers_;
+  RegList safepoints_double_registers_;
   ZoneList<LInstruction*> instructions_;
   ZoneList<LPointerMap*> pointer_maps_;
   ZoneList<Handle<JSFunction> > inlined_closures_;
 };
 
 
 class LChunkBuilderBase BASE_EMBEDDED {
  public:
   explicit LChunkBuilderBase(Zone* zone)
       : argument_count_(0),
@@ skipping 40 matching lines @@
  private:
   LChunk* chunk_;
 
   DISALLOW_COPY_AND_ASSIGN(LPhase);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_LITHIUM_H_