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Avoid copying LiveInterval, this could lead to a double-delete

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231154 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2015-03-03 22:25:48 +00:00
parent 63295d884c
commit 5f4b9f892b
1 changed files with 1 additions and 1 deletions
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lib/Target/AArch64/AArch64PBQPRegAlloc.cpp
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@ -319,7 +319,7 @@ void A57ChainingConstraint::addInterChainConstraint(PBQPRAGraph &G, unsigned Rd,
static bool regJustKilledBefore(const LiveIntervals &LIs, unsigned reg,
const MachineInstr &MI) {
LiveInterval LI = LIs.getInterval(reg);
const LiveInterval &LI = LIs.getInterval(reg);
SlotIndex SI = LIs.getInstructionIndex(&MI);
return LI.expiredAt(SI);
}