Subzero: Improve class definition hygiene.

src/IceRegAlloc.cpp

 //===- subzero/src/IceRegAlloc.cpp - Linear-scan implementation -----------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the LinearScan class, which performs the
@@ skipping 77 matching lines @@
   FindPreference = true;
   FindOverlap = true;
   const VarList &Vars = Func->getVariables();
   Unhandled.reserve(Vars.size());
   UnhandledPrecolored.reserve(Vars.size());
   // Gather the live ranges of all variables and add them to the
   // Unhandled set.
   for (Variable *Var : Vars) {
     // Explicitly don't consider zero-weight variables, which are
     // meant to be spill slots.
-    if (Var->getWeight() == RegWeight::Zero)
+    if (Var->getWeight().isZero())
       continue;
     // Don't bother if the variable has a null live range, which means
     // it was never referenced.
     if (Var->getLiveRange().isEmpty())
       continue;
     Var->untrimLiveRange();
     Unhandled.push_back(Var);
     if (Var->hasReg()) {
       Var->setRegNumTmp(Var->getRegNum());
       Var->setLiveRangeInfiniteWeight();
@@ skipping 51 matching lines @@
   // Iterate across all instructions and record the begin and end of
   // the live range for each variable that is pre-colored or infinite
   // weight.
   std::vector<InstNumberT> LRBegin(Vars.size(), Inst::NumberSentinel);
   std::vector<InstNumberT> LREnd(Vars.size(), Inst::NumberSentinel);
   for (CfgNode *Node : Func->getNodes()) {
     for (Inst &Inst : Node->getInsts()) {
       if (Inst.isDeleted())
         continue;
       if (const Variable *Var = Inst.getDest()) {
-        if (Var->hasReg() || Var->getWeight() == RegWeight::Inf) {
+        if (Var->hasReg() || Var->getWeight().isInf()) {
           if (LRBegin[Var->getIndex()] == Inst::NumberSentinel) {
             LRBegin[Var->getIndex()] = Inst.getNumber();
             ++NumVars;
           }
         }
       }
       for (SizeT I = 0; I < Inst.getSrcSize(); ++I) {
         Operand *Src = Inst.getSrc(I);
         SizeT NumVars = Src->getNumVars();
         for (SizeT J = 0; J < NumVars; ++J) {
           const Variable *Var = Src->getVar(J);
-          if (Var->hasReg() || Var->getWeight() == RegWeight::Inf)
+          if (Var->hasReg() || Var->getWeight().isInf())
             LREnd[Var->getIndex()] = Inst.getNumber();
         }
       }
     }
   }
 
   Unhandled.reserve(NumVars);
   UnhandledPrecolored.reserve(NumVars);
   for (SizeT i = 0; i < Vars.size(); ++i) {
     Variable *Var = Vars[i];
@@ skipping 565 matching lines @@
     Str << "\n";
   }
   Str << "++++++ Inactive:\n";
   for (const Variable *Item : Inactive) {
     dumpLiveRange(Item, Func);
     Str << "\n";
   }
 }
 
 } // end of namespace Ice