Function pickRegisterTarget

src/codegen/compiler/regalloc.cpp:59–86

}

bool pickRegisterTarget(Context* c,
                        Register i,
                        Value* v,
                        RegisterMask mask,
                        Register* target,
                        unsigned* cost,
                        CostCalculator* costCalculator)
{
  if (mask.contains(i)) {
    RegisterResource* r = c->registerResources + i.index();
    unsigned myCost
        = resourceCost(
              c,
              v,
              r,
              SiteMask(lir::Operand::RegisterPairMask, RegisterMask(i), NoFrameIndex),
              costCalculator) + Target::MinimumRegisterCost;

    if (mask.containsExactly(i)) {
      *cost = myCost;
      return true;
    } else if (myCost < *cost) {
      *cost = myCost;
      *target = i;
    }
  }
  return false;
}

Register pickRegisterTarget(Context* c,
                       Value* v,