Subzero: Implement InstList in terms of llvm::ilist<> .

src/IceCfgNode.h

 //===- subzero/src/IceCfgNode.h - Control flow graph node -------*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares the CfgNode class, which represents a single
 // basic block as its instruction list, in-edge list, and out-edge
 // list.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef SUBZERO_SRC_ICECFGNODE_H
 #define SUBZERO_SRC_ICECFGNODE_H
 
 #include "IceDefs.h"
+#include "IceInst.h" // InstList traits
 
 namespace Ice {
 
 class CfgNode {
   CfgNode(const CfgNode &) = delete;
   CfgNode &operator=(const CfgNode &) = delete;
 
 public:
   static CfgNode *create(Cfg *Func, SizeT LabelIndex, IceString Name = "") {
     return new (Func->allocate<CfgNode>()) CfgNode(Func, LabelIndex, Name);
@@ skipping 65 matching lines @@
   InstNumberT InstCountEstimate; // rough instruction count estimate
   NodeList InEdges;   // in no particular order
   NodeList OutEdges;  // in no particular order
   PhiList Phis;       // unordered set of phi instructions
   InstList Insts;     // ordered list of non-phi instructions
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICECFGNODE_H