[turbofan] split register allocator into little pieces

src/compiler/graph-visualizer.h

 // Copyright 2013 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_COMPILER_GRAPH_VISUALIZER_H_
 #define V8_COMPILER_GRAPH_VISUALIZER_H_
 
 #include <iosfwd>
 
 namespace v8 {
 namespace internal {
 
 class CompilationInfo;
 
 namespace compiler {
 
 class Graph;
 class InstructionSequence;
-class RegisterAllocator;
+class RegisterAllocationData;
 class Schedule;
 class SourcePositionTable;
 
 FILE* OpenVisualizerLogFile(CompilationInfo* info, const char* phase,
                             const char* suffix, const char* mode);
 
 struct AsDOT {
   explicit AsDOT(const Graph& g) : graph(g) {}
   const Graph& graph;
 };
@@ skipping 30 matching lines @@
       : schedule_(schedule),
         instructions_(instructions),
         positions_(positions),
         phase_(phase) {}
   const Schedule* schedule_;
   const InstructionSequence* instructions_;
   const SourcePositionTable* positions_;
   const char* phase_;
 };
 
-struct AsC1VAllocator {
-  explicit AsC1VAllocator(const char* phase,
-                          const RegisterAllocator* allocator = NULL)
-      : phase_(phase), allocator_(allocator) {}
+struct AsC1VRegisterAllocationData {
+  explicit AsC1VRegisterAllocationData(
+      const char* phase, const RegisterAllocationData* data = nullptr)
+      : phase_(phase), data_(data) {}
   const char* phase_;
-  const RegisterAllocator* allocator_;
+  const RegisterAllocationData* data_;
 };
 
 std::ostream& operator<<(std::ostream& os, const AsDOT& ad);
 std::ostream& operator<<(std::ostream& os, const AsC1VCompilation& ac);
 std::ostream& operator<<(std::ostream& os, const AsC1V& ac);
-std::ostream& operator<<(std::ostream& os, const AsC1VAllocator& ac);
+std::ostream& operator<<(std::ostream& os,
+                         const AsC1VRegisterAllocationData& ac);
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_GRAPH_VISUALIZER_H_