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Avoid copying LiveInterval, this could lead to a double-delete
author
David Blaikie
<dblaikie@gmail.com>
Tue, 3 Mar 2015 22:25:48 +0000
(22:25 +0000)
committer
David Blaikie
<dblaikie@gmail.com>
Tue, 3 Mar 2015 22:25:48 +0000
(22:25 +0000)
llvm-svn: 231154
llvm/lib/Target/AArch64/AArch64PBQPRegAlloc.cpp
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diff --git
a/llvm/lib/Target/AArch64/AArch64PBQPRegAlloc.cpp
b/llvm/lib/Target/AArch64/AArch64PBQPRegAlloc.cpp
index
4690177
..
5394875
100644
(file)
--- a/
llvm/lib/Target/AArch64/AArch64PBQPRegAlloc.cpp
+++ b/
llvm/lib/Target/AArch64/AArch64PBQPRegAlloc.cpp
@@
-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);
}