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authorManman Ren <mren@apple.com>2012-07-31 20:45:38 +0000
committerManman Ren <mren@apple.com>2012-07-31 20:45:38 +0000
commitf99efdf3290b438a2cd74304e4299d50bce2b397 (patch)
tree67fd2eab861c7075ca2f2d2a596ca9effba1e97c /lib/CodeGen/MachineSink.cpp
parent5f8e8bd656bb174b3e22c0e56ce3d1eb958ac2e2 (diff)
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MachineSink: Sort the successors before trying to find SuccToSinkTo.
Use stable_sort instead of sort. Follow-up to r161062. rdar://11980766 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161075 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineSink.cpp')
-rw-r--r--lib/CodeGen/MachineSink.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineSink.cpp b/lib/CodeGen/MachineSink.cpp
index d02aa6fe60..bc383cba45 100644
--- a/lib/CodeGen/MachineSink.cpp
+++ b/lib/CodeGen/MachineSink.cpp
@@ -538,7 +538,7 @@ MachineBasicBlock *MachineSinking::FindSuccToSinkTo(MachineInstr *MI,
// we should sink to.
// We give successors with smaller loop depth higher priority.
SmallVector<MachineBasicBlock*, 4> Succs(MBB->succ_begin(), MBB->succ_end());
- std::sort(Succs.begin(), Succs.end(), SuccessorSorter(LI));
+ std::stable_sort(Succs.begin(), Succs.end(), SuccessorSorter(LI));
for (SmallVector<MachineBasicBlock*, 4>::iterator SI = Succs.begin(),
E = Succs.end(); SI != E; ++SI) {
MachineBasicBlock *SuccBlock = *SI;