diff options
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/MachineBasicBlock.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp index 8f0fb46879..4c5fe4c480 100644 --- a/lib/CodeGen/MachineBasicBlock.cpp +++ b/lib/CodeGen/MachineBasicBlock.cpp @@ -571,6 +571,11 @@ MachineBasicBlock::SplitCriticalEdge(MachineBasicBlock *Succ, Pass *P) { if (i->getOperand(ni+1).getMBB() == this) i->getOperand(ni+1).setMBB(NMBB); + // Inherit live-ins from the successor + for (MachineBasicBlock::livein_iterator I = Succ->livein_begin(), + E = Succ->livein_end(); I != E; ++I) + NMBB->addLiveIn(*I); + // Update LiveVariables. if (LV) { // Restore kills of virtual registers that were killed by the terminators. |