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Avoid recomputing an inserted instruction's SlotIndex.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175597 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Cameron Zwarich 2013-02-20 06:46:32 +00:00
parent 4f659eccaf
commit 2650a82cc4
1 changed files with 1 additions and 2 deletions
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3
lib/CodeGen/PHIElimination.cpp
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@ -306,10 +306,9 @@ void PHIElimination::LowerPHINode(MachineBasicBlock &MBB,
// Update LiveIntervals for the new copy or implicit def.
if (LIS) {
MachineInstr *NewInstr = prior(AfterPHIsIt);
LIS->InsertMachineInstrInMaps(NewInstr);
SlotIndex DestCopyIndex = LIS->InsertMachineInstrInMaps(NewInstr);
SlotIndex MBBStartIndex = LIS->getMBBStartIdx(&MBB);
SlotIndex DestCopyIndex = LIS->getInstructionIndex(NewInstr);
if (IncomingReg) {
// Add the region from the beginning of MBB to the copy instruction to
// IncomingReg's live interval.