diff options
Diffstat (limited to 'lib/CodeGen/SimpleRegisterCoalescing.cpp')
-rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.cpp | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp index 221bec50d8..f58077be35 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -839,8 +839,7 @@ SimpleRegisterCoalescing::isWinToJoinCrossClass(unsigned SrcReg, /// if the copy was successfully coalesced away. If it is not currently /// possible to coalesce this interval, but it may be possible if other /// things get coalesced, then it returns true by reference in 'Again'. -bool SimpleRegisterCoalescing::JoinCopy(CopyRec &TheCopy, bool &Again) { - MachineInstr *CopyMI = TheCopy.MI; +bool SimpleRegisterCoalescing::JoinCopy(MachineInstr *CopyMI, bool &Again) { Again = false; if (JoinedCopies.count(CopyMI) || ReMatCopies.count(CopyMI)) @@ -1268,12 +1267,12 @@ namespace { } void SimpleRegisterCoalescing::CopyCoalesceInMBB(MachineBasicBlock *MBB, - std::vector<CopyRec> &TryAgain) { + std::vector<MachineInstr*> &TryAgain) { DEBUG(dbgs() << MBB->getName() << ":\n"); - SmallVector<CopyRec, 8> VirtCopies; - SmallVector<CopyRec, 8> PhysCopies; - SmallVector<CopyRec, 8> ImpDefCopies; + SmallVector<MachineInstr*, 8> VirtCopies; + SmallVector<MachineInstr*, 8> PhysCopies; + SmallVector<MachineInstr*, 8> ImpDefCopies; for (MachineBasicBlock::iterator MII = MBB->begin(), E = MBB->end(); MII != E;) { MachineInstr *Inst = MII++; @@ -1292,32 +1291,32 @@ void SimpleRegisterCoalescing::CopyCoalesceInMBB(MachineBasicBlock *MBB, bool SrcIsPhys = TargetRegisterInfo::isPhysicalRegister(SrcReg); bool DstIsPhys = TargetRegisterInfo::isPhysicalRegister(DstReg); if (li_->hasInterval(SrcReg) && li_->getInterval(SrcReg).empty()) - ImpDefCopies.push_back(CopyRec(Inst, 0)); + ImpDefCopies.push_back(Inst); else if (SrcIsPhys || DstIsPhys) - PhysCopies.push_back(CopyRec(Inst, 0)); + PhysCopies.push_back(Inst); else - VirtCopies.push_back(CopyRec(Inst, 0)); + VirtCopies.push_back(Inst); } // Try coalescing implicit copies and insert_subreg <undef> first, // followed by copies to / from physical registers, then finally copies // from virtual registers to virtual registers. for (unsigned i = 0, e = ImpDefCopies.size(); i != e; ++i) { - CopyRec &TheCopy = ImpDefCopies[i]; + MachineInstr *TheCopy = ImpDefCopies[i]; bool Again = false; if (!JoinCopy(TheCopy, Again)) if (Again) TryAgain.push_back(TheCopy); } for (unsigned i = 0, e = PhysCopies.size(); i != e; ++i) { - CopyRec &TheCopy = PhysCopies[i]; + MachineInstr *TheCopy = PhysCopies[i]; bool Again = false; if (!JoinCopy(TheCopy, Again)) if (Again) TryAgain.push_back(TheCopy); } for (unsigned i = 0, e = VirtCopies.size(); i != e; ++i) { - CopyRec &TheCopy = VirtCopies[i]; + MachineInstr *TheCopy = VirtCopies[i]; bool Again = false; if (!JoinCopy(TheCopy, Again)) if (Again) @@ -1328,7 +1327,7 @@ void SimpleRegisterCoalescing::CopyCoalesceInMBB(MachineBasicBlock *MBB, void SimpleRegisterCoalescing::joinIntervals() { DEBUG(dbgs() << "********** JOINING INTERVALS ***********\n"); - std::vector<CopyRec> TryAgainList; + std::vector<MachineInstr*> TryAgainList; if (loopInfo->empty()) { // If there are no loops in the function, join intervals in function order. for (MachineFunction::iterator I = mf_->begin(), E = mf_->end(); @@ -1362,14 +1361,14 @@ void SimpleRegisterCoalescing::joinIntervals() { ProgressMade = false; for (unsigned i = 0, e = TryAgainList.size(); i != e; ++i) { - CopyRec &TheCopy = TryAgainList[i]; - if (!TheCopy.MI) + MachineInstr *&TheCopy = TryAgainList[i]; + if (!TheCopy) continue; bool Again = false; bool Success = JoinCopy(TheCopy, Again); if (Success || !Again) { - TheCopy.MI = 0; // Mark this one as done. + TheCopy= 0; // Mark this one as done. ProgressMade = true; } } |