diff options
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index e09ac4bfbd..0978d7342e 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -1035,19 +1035,24 @@ void LiveIntervals::handleMoveIntoBundle(MachineInstr* MI, void LiveIntervals::repairIntervalsInRange(MachineBasicBlock *MBB, - MachineBasicBlock::reverse_iterator RBegin, - MachineBasicBlock::reverse_iterator REnd, + MachineBasicBlock::iterator Begin, + MachineBasicBlock::iterator End, ArrayRef<unsigned> OrigRegs) { + SlotIndex startIdx; + if (Begin == MBB->begin()) + startIdx = getMBBStartIdx(MBB); + else + startIdx = getInstructionIndex(prior(Begin)).getRegSlot(); + for (unsigned i = 0, e = OrigRegs.size(); i != e; ++i) { unsigned Reg = OrigRegs[i]; if (!TargetRegisterInfo::isVirtualRegister(Reg)) continue; LiveInterval &LI = getInterval(Reg); - SlotIndex startIdx = (REnd == MBB->rend()) ? getMBBStartIdx(MBB) - : getInstructionIndex(&*REnd); - for (MachineBasicBlock::reverse_iterator I = RBegin; I != REnd; ++I) { - MachineInstr *MI = &*I; + for (MachineBasicBlock::iterator I = End; I != Begin;) { + --I; + MachineInstr *MI = I; SlotIndex instrIdx = getInstructionIndex(MI); for (MachineInstr::mop_iterator OI = MI->operands_begin(), @@ -1059,7 +1064,7 @@ LiveIntervals::repairIntervalsInRange(MachineBasicBlock *MBB, assert(MO.isUse() && "Register defs are not yet supported."); if (!LI.liveAt(instrIdx)) { - LiveRange *LR = LI.getLiveRangeContaining(startIdx.getRegSlot()); + LiveRange *LR = LI.getLiveRangeContaining(startIdx); assert(LR && "Used registers must be live-in."); LR->end = instrIdx.getRegSlot(); break; |