- Reduce the number of Isolate::Current() calls.

runtime/vm/intermediate_language.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_INTERMEDIATE_LANGUAGE_H_
 #define VM_INTERMEDIATE_LANGUAGE_H_
 
 #include "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 779 matching lines @@
 FOR_EACH_INSTRUCTION(FORWARD_DECLARATION)
 #undef FORWARD_DECLARATION
 
 
 // Functions required in all concrete instruction classes.
 #define DECLARE_INSTRUCTION(type)                                              \
   virtual Tag tag() const { return k##type; }                                  \
   virtual void Accept(FlowGraphVisitor* visitor);                              \
   virtual type##Instr* As##type() { return this; }                             \
   virtual const char* DebugName() const { return #type; }                      \
-  virtual LocationSummary* MakeLocationSummary(bool optimizing) const;         \
+  virtual LocationSummary* MakeLocationSummary(Isolate* isolate,               \
+                                               bool optimizing) const;         \
   virtual void EmitNativeCode(FlowGraphCompiler* compiler);                    \
 
 
 class Instruction : public ZoneAllocated {
  public:
 #define DECLARE_TAG(type) k##type,
   enum Tag {
     FOR_EACH_INSTRUCTION(DECLARE_TAG)
   };
 #undef DECLARE_TAG
@@ skipping 105 matching lines @@
 FOR_EACH_INSTRUCTION(INSTRUCTION_TYPE_CHECK)
 #undef INSTRUCTION_TYPE_CHECK
 
   // Returns structure describing location constraints required
   // to emit native code for this instruction.
   virtual LocationSummary* locs() {
     ASSERT(locs_ != NULL);
     return locs_;
   }
 
-  virtual LocationSummary* MakeLocationSummary(bool is_optimizing) const = 0;
+  virtual LocationSummary* MakeLocationSummary(Isolate* isolate,
+                                               bool is_optimizing) const = 0;
 
-  void InitializeLocationSummary(bool optimizing) {
+  void InitializeLocationSummary(Isolate* isolate, bool optimizing) {
     ASSERT(locs_ == NULL);
-    locs_ = MakeLocationSummary(optimizing);
+    locs_ = MakeLocationSummary(isolate, optimizing);
   }
 
   static LocationSummary* MakeCallSummary();
 
   virtual void EmitNativeCode(FlowGraphCompiler* compiler) {
     UNIMPLEMENTED();
   }
 
   Environment* env() const { return env_; }
   void SetEnvironment(Environment* deopt_env);
@@ skipping 7019 matching lines @@
   ForwardInstructionIterator* current_iterator_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FlowGraphVisitor);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_