#define DEBUG_TYPE "calcspillweights"
-#include "llvm/Function.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/CodeGen/CalcSpillWeights.h"
#include "llvm/CodeGen/LiveIntervalAnalysis.h"
MachineFunctionPass::getAnalysisUsage(au);
}
-bool CalculateSpillWeights::runOnMachineFunction(MachineFunction &fn) {
+bool CalculateSpillWeights::runOnMachineFunction(MachineFunction &MF) {
DEBUG(dbgs() << "********** Compute Spill Weights **********\n"
- << "********** Function: "
- << fn.getFunction()->getName() << '\n');
-
- LiveIntervals &lis = getAnalysis<LiveIntervals>();
- VirtRegAuxInfo vrai(fn, lis, getAnalysis<MachineLoopInfo>());
- for (LiveIntervals::iterator I = lis.begin(), E = lis.end(); I != E; ++I) {
- LiveInterval &li = *I->second;
- if (TargetRegisterInfo::isVirtualRegister(li.reg))
- vrai.CalculateWeightAndHint(li);
+ << "********** Function: " << MF.getName() << '\n');
+
+ LiveIntervals &LIS = getAnalysis<LiveIntervals>();
+ MachineRegisterInfo &MRI = MF.getRegInfo();
+ VirtRegAuxInfo VRAI(MF, LIS, getAnalysis<MachineLoopInfo>());
+ for (unsigned i = 0, e = MRI.getNumVirtRegs(); i != e; ++i) {
+ unsigned Reg = TargetRegisterInfo::index2VirtReg(i);
+ if (MRI.reg_nodbg_empty(Reg))
+ continue;
+ VRAI.CalculateWeightAndHint(LIS.getInterval(Reg));
}
return false;
}