diff options
| -rw-r--r-- | lib/CodeGen/MachineCSE.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp index 5d79e96..341afd9 100644 --- a/lib/CodeGen/MachineCSE.cpp +++ b/lib/CodeGen/MachineCSE.cpp @@ -468,7 +468,8 @@ bool MachineCSE::ProcessBlock(MachineBasicBlock *MBB) { SmallVector<unsigned,8>::iterator PI = DirectPhysRefs.begin(), PE = DirectPhysRefs.end(); for (; PI != PE; ++PI) - MBB->addLiveIn(*PI); + if (!MBB->isLiveIn(*PI)) + MBB->addLiveIn(*PI); } ++NumCSEs; if (!PhysRefs.empty()) |