diff options
Diffstat (limited to 'lib/CodeGen/LiveRangeEdit.cpp')
| -rw-r--r-- | lib/CodeGen/LiveRangeEdit.cpp | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/CodeGen/LiveRangeEdit.cpp b/lib/CodeGen/LiveRangeEdit.cpp index 891eaab..431241f 100644 --- a/lib/CodeGen/LiveRangeEdit.cpp +++ b/lib/CodeGen/LiveRangeEdit.cpp @@ -11,7 +11,6 @@ // is spilled or split. //===----------------------------------------------------------------------===// -#define DEBUG_TYPE "regalloc" #include "llvm/CodeGen/LiveRangeEdit.h" #include "llvm/ADT/Statistic.h" #include "llvm/CodeGen/CalcSpillWeights.h" @@ -24,6 +23,8 @@ using namespace llvm; +#define DEBUG_TYPE "regalloc" + STATISTIC(NumDCEDeleted, "Number of instructions deleted by DCE"); STATISTIC(NumDCEFoldedLoads, "Number of single use loads folded after DCE"); STATISTIC(NumFracRanges, "Number of live ranges fractured by DCE"); @@ -164,7 +165,7 @@ void LiveRangeEdit::eraseVirtReg(unsigned Reg) { bool LiveRangeEdit::foldAsLoad(LiveInterval *LI, SmallVectorImpl<MachineInstr*> &Dead) { - MachineInstr *DefMI = 0, *UseMI = 0; + MachineInstr *DefMI = nullptr, *UseMI = nullptr; // Check that there is a single def and a single use. for (MachineOperand &MO : MRI.reg_nodbg_operands(LI->reg)) { @@ -197,7 +198,7 @@ bool LiveRangeEdit::foldAsLoad(LiveInterval *LI, // We also need to make sure it is safe to move the load. // Assume there are stores between DefMI and UseMI. bool SawStore = true; - if (!DefMI->isSafeToMove(&TII, 0, SawStore)) + if (!DefMI->isSafeToMove(&TII, nullptr, SawStore)) return false; DEBUG(dbgs() << "Try to fold single def: " << *DefMI @@ -213,7 +214,7 @@ bool LiveRangeEdit::foldAsLoad(LiveInterval *LI, DEBUG(dbgs() << " folded: " << *FoldMI); LIS.ReplaceMachineInstrInMaps(UseMI, FoldMI); UseMI->eraseFromParent(); - DefMI->addRegisterDead(LI->reg, 0); + DefMI->addRegisterDead(LI->reg, nullptr); Dead.push_back(DefMI); ++NumDCEFoldedLoads; return true; @@ -236,7 +237,7 @@ void LiveRangeEdit::eliminateDeadDef(MachineInstr *MI, ToShrinkSet &ToShrink) { // Use the same criteria as DeadMachineInstructionElim. bool SawStore = false; - if (!MI->isSafeToMove(&TII, 0, SawStore)) { + if (!MI->isSafeToMove(&TII, nullptr, SawStore)) { DEBUG(dbgs() << "Can't delete: " << Idx << '\t' << *MI); return; } |