Make CTX allocatable by the register allocator.

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 419 matching lines @@
   M(ParallelMove)                                                              \
   M(PushArgument)                                                              \
   M(Return)                                                                    \
   M(Throw)                                                                     \
   M(ReThrow)                                                                   \
   M(Goto)                                                                      \
   M(Branch)                                                                    \
   M(AssertAssignable)                                                          \
   M(AssertBoolean)                                                             \
   M(CurrentContext)                                                            \
-  M(StoreContext)                                                              \
   M(ClosureCall)                                                               \
   M(InstanceCall)                                                              \
   M(PolymorphicInstanceCall)                                                   \
   M(StaticCall)                                                                \
   M(LoadLocal)                                                                 \
   M(PushTemp)                                                                  \
   M(DropTemps)                                                                 \
   M(StoreLocal)                                                                \
   M(StrictCompare)                                                             \
   M(EqualityCompare)                                                           \
@@ skipping 268 matching lines @@
   }
 
   virtual LocationSummary* MakeLocationSummary(Isolate* isolate,
                                                bool is_optimizing) const = 0;
 
   void InitializeLocationSummary(Isolate* isolate, bool optimizing) {
     ASSERT(locs_ == NULL);
     locs_ = MakeLocationSummary(isolate, optimizing);
   }
 
-  static LocationSummary* MakeCallSummary();
+  static LocationSummary* MakeCallSummary(Isolate* isolate);
 
   virtual void EmitNativeCode(FlowGraphCompiler* compiler) {
     UNIMPLEMENTED();
   }
 
   Environment* env() const { return env_; }
   void SetEnvironment(Environment* deopt_env);
   void RemoveEnvironment();
 
   intptr_t lifetime_position() const { return lifetime_position_; }
@@ skipping 611 matching lines @@
   virtual intptr_t PredecessorCount() const { return predecessors_.length(); }
   virtual BlockEntryInstr* PredecessorAt(intptr_t index) const {
     return predecessors_[index];
   }
 
   // Returns -1 if pred is not in the list.
   intptr_t IndexOfPredecessor(BlockEntryInstr* pred) const;
 
   ZoneGrowableArray<PhiInstr*>* phis() const { return phis_; }
 
-  void InsertPhi(intptr_t var_index, intptr_t var_count);
+  PhiInstr* InsertPhi(intptr_t var_index, intptr_t var_count);
   void RemoveDeadPhis(Definition* replacement);
 
   void InsertPhi(PhiInstr* phi);
   void RemovePhi(PhiInstr* phi);
 
   virtual void PrintTo(BufferFormatter* f) const;
 
   virtual EffectSet Effects() const { return EffectSet::None(); }
   virtual EffectSet Dependencies() const { return EffectSet::None(); }
 
@@ skipping 951 matching lines @@
   TargetEntryInstr* false_successor_;
   ComparisonInstr* comparison_;
   bool is_checked_;
   ConstrainedCompileType* constrained_type_;
   TargetEntryInstr* constant_target_;
 
   DISALLOW_COPY_AND_ASSIGN(BranchInstr);
 };
 
 
-class StoreContextInstr : public TemplateInstruction<1, NoThrow> {
- public:
-  explicit StoreContextInstr(Value* value) {
-    SetInputAt(kValuePos, value);
-  }
-
-  enum {
-    kValuePos = 0
-  };
-
-  DECLARE_INSTRUCTION(StoreContext)
-
-  virtual intptr_t ArgumentCount() const { return 0; }
-
-  Value* value() const { return inputs_[kValuePos]; }
-
-  virtual bool CanDeoptimize() const { return false; }
-
-  virtual EffectSet Effects() const { return EffectSet::None(); }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(StoreContextInstr);
-};
-
-
 class DeoptimizeInstr : public TemplateInstruction<0, NoThrow, Pure> {
  public:
   DeoptimizeInstr(ICData::DeoptReasonId deopt_reason, intptr_t deopt_id)
       : TemplateInstruction(deopt_id),
         deopt_reason_(deopt_reason) {
   }
 
   virtual intptr_t ArgumentCount() const { return 0; }
 
   virtual bool CanDeoptimize() const { return true; }
@@ skipping 5551 matching lines @@
       Isolate* isolate, bool opt) const {                                     \
     UNIMPLEMENTED();                                                          \
     return NULL;                                                              \
   }                                                                           \
   void Name::EmitNativeCode(FlowGraphCompiler* compiler) { UNIMPLEMENTED(); }
 
 
 }  // namespace dart
 
 #endif  // VM_INTERMEDIATE_LANGUAGE_H_