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| author | Haojian Wu <hokein@google.com> | 2017-06-20 09:29:43 +0000 |
|---|---|---|
| committer | Haojian Wu <hokein@google.com> | 2017-06-20 09:29:43 +0000 |
| commit | 6bd5cc6239849532f0c39a8115dda9ffe2f73136 (patch) | |
| tree | f7e158a3c3e5ecfb5db4bb0864a5a9596b339a18 /llvm/lib/CodeGen/SelectionDAG | |
| parent | 1dcd5e8dc8274ede357868577abd7ac32f9b3bd9 (diff) | |
| download | bcm5719-llvm-6bd5cc6239849532f0c39a8115dda9ffe2f73136.tar.gz bcm5719-llvm-6bd5cc6239849532f0c39a8115dda9ffe2f73136.zip | |
[SelectionDAG] Fix an use-after-free issue introduced in r305775.
vector.back() will be invalidated when memory reallocation happens.
llvm-svn: 305785
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp index c90747943f5..70b1fa77a09 100644 --- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp @@ -1888,10 +1888,10 @@ CalcNodeSethiUllmanNumber(const SUnit *SU, std::vector<unsigned> &SUNumbers) { for (auto It : WorkList) assert(It.SU != PredSU && "Trying to push an element twice?"); #endif - WorkList.push_back(PredSU); - AllPredsKnown = false; // Next time start processing this one starting from the next pred. Temp.PredsProcessed = P + 1; + WorkList.push_back(PredSU); + AllPredsKnown = false; break; } } |
