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| author | Vitaly Buka <vitalybuka@google.com> | 2017-05-22 21:33:54 +0000 |
|---|---|---|
| committer | Vitaly Buka <vitalybuka@google.com> | 2017-05-22 21:33:54 +0000 |
| commit | b238cb8fbca233fef4a65e1ef3e28bb4f1eb42f2 (patch) | |
| tree | e0ac1741f45b342f5c977af56077705de2891e4f /llvm/lib/CodeGen/TailDuplicator.cpp | |
| parent | 997f5f10c6de8f0327225ff4e03582272094811a (diff) | |
| download | bcm5719-llvm-b238cb8fbca233fef4a65e1ef3e28bb4f1eb42f2.tar.gz bcm5719-llvm-b238cb8fbca233fef4a65e1ef3e28bb4f1eb42f2.zip | |
[CodeGen] Fix uninitialized variables exposed by r303084
All other calls of analyzeBranch reset PredTBB and PredFBB, so I assume it's
expected behavior.
llvm-svn: 303581
Diffstat (limited to 'llvm/lib/CodeGen/TailDuplicator.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/TailDuplicator.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/TailDuplicator.cpp b/llvm/lib/CodeGen/TailDuplicator.cpp index d2414200e9d..d40f7af431a 100644 --- a/llvm/lib/CodeGen/TailDuplicator.cpp +++ b/llvm/lib/CodeGen/TailDuplicator.cpp @@ -749,7 +749,7 @@ bool TailDuplicator::canTailDuplicate(MachineBasicBlock *TailBB, if (PredBB->succ_size() > 1) return false; - MachineBasicBlock *PredTBB, *PredFBB; + MachineBasicBlock *PredTBB = nullptr, *PredFBB = nullptr; SmallVector<MachineOperand, 4> PredCond; if (TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond)) return false; @@ -832,7 +832,7 @@ bool TailDuplicator::tailDuplicate(bool IsSimple, MachineBasicBlock *TailBB, appendCopies(PredBB, CopyInfos, Copies); // Simplify - MachineBasicBlock *PredTBB, *PredFBB; + MachineBasicBlock *PredTBB = nullptr, *PredFBB = nullptr; SmallVector<MachineOperand, 4> PredCond; TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond); |
