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When updating live range endpoints, make sure to preserve the early clobber bit.

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Fixs PR13719.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163107 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lang Hames 2012-09-03 06:31:45 +00:00
parent 84451a110d
commit 7b23d08385
1 changed files with 2 additions and 2 deletions
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4
lib/CodeGen/LiveIntervalAnalysis.cpp
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@ -1173,7 +1173,7 @@ private:
SlotIndex LastUse = findLastUseBefore(LI->reg, OldIdx);
if (LastUse != NewIdx)
moveKillFlags(LI->reg, NewIdx, LastUse);
LR->end = LastUse.getRegSlot();
LR->end = LastUse.getRegSlot(LR->end.isEarlyClobber());
}
void moveEnteringDownFrom(SlotIndex OldIdx, IntRangePair& P) {
@ -1187,7 +1187,7 @@ private:
assert(LR->end > OldIdx && "LiveRange does not cover original slot");
moveKillFlags(LI->reg, LR->end, NewIdx);
}
LR->end = NewIdx.getRegSlot();
LR->end = NewIdx.getRegSlot(LR->end.isEarlyClobber());
}
}