[turbofan] resolve all references before populating reference maps

src/compiler/register-allocator.h

 // Copyright 2014 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_REGISTER_ALLOCATOR_H_
 #define V8_REGISTER_ALLOCATOR_H_
 
 #include "src/compiler/instruction.h"
 #include "src/zone-containers.h"
 
@@ skipping 510 matching lines @@
     void CommitAssignment(const InstructionOperand& operand);
 
    private:
     PhiInstruction* const phi_;
     const InstructionBlock* const block_;
     ZoneVector<InstructionOperand*> incoming_operands_;
     int assigned_register_;
   };
   typedef ZoneMap<int, PhiMapValue*> PhiMap;
 
+  struct DelayedReference {
+    ReferenceMap* map;
+    InstructionOperand* operand;
+  };
+  typedef ZoneVector<DelayedReference> DelayedReferences;
+
   RegisterAllocationData(const RegisterConfiguration* config,
                          Zone* allocation_zone, Frame* frame,
                          InstructionSequence* code,
                          const char* debug_name = nullptr);
 
   const ZoneVector<LiveRange*>& live_ranges() const { return live_ranges_; }
   ZoneVector<LiveRange*>& live_ranges() { return live_ranges_; }
   const ZoneVector<LiveRange*>& fixed_live_ranges() const {
     return fixed_live_ranges_;
   }
   ZoneVector<LiveRange*>& fixed_live_ranges() { return fixed_live_ranges_; }
   ZoneVector<LiveRange*>& fixed_double_live_ranges() {
     return fixed_double_live_ranges_;
   }
   const ZoneVector<LiveRange*>& fixed_double_live_ranges() const {
     return fixed_double_live_ranges_;
   }
   ZoneVector<BitVector*>& live_in_sets() { return live_in_sets_; }
   ZoneVector<SpillRange*>& spill_ranges() { return spill_ranges_; }
+  DelayedReferences& delayed_references() { return delayed_references_; }
   InstructionSequence* code() const { return code_; }
   // This zone is for datastructures only needed during register allocation
   // phases.
   Zone* allocation_zone() const { return allocation_zone_; }
   // This zone is for InstructionOperands and moves that live beyond register
   // allocation.
   Zone* code_zone() const { return code()->zone(); }
   Frame* frame() const { return frame_; }
   const char* debug_name() const { return debug_name_; }
   const RegisterConfiguration* config() const { return config_; }
@@ skipping 28 matching lines @@
   Frame* const frame_;
   InstructionSequence* const code_;
   const char* const debug_name_;
   const RegisterConfiguration* const config_;
   PhiMap phi_map_;
   ZoneVector<BitVector*> live_in_sets_;
   ZoneVector<LiveRange*> live_ranges_;
   ZoneVector<LiveRange*> fixed_live_ranges_;
   ZoneVector<LiveRange*> fixed_double_live_ranges_;
   ZoneVector<SpillRange*> spill_ranges_;
+  DelayedReferences delayed_references_;
   BitVector* assigned_registers_;
   BitVector* assigned_double_registers_;
   int virtual_register_count_;
 
   DISALLOW_COPY_AND_ASSIGN(RegisterAllocationData);
 };
 
 
 class ConstraintBuilder final : public ZoneObject {
  public:
@@ skipping 308 matching lines @@
   RegisterAllocationData* const data_;
 
   DISALLOW_COPY_AND_ASSIGN(LiveRangeConnector);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_REGISTER_ALLOCATOR_H_