diff options
Diffstat (limited to 'llvm/lib/CodeGen/LiveVariables.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveVariables.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/LiveVariables.cpp b/llvm/lib/CodeGen/LiveVariables.cpp index 7e89471..6610491 100644 --- a/llvm/lib/CodeGen/LiveVariables.cpp +++ b/llvm/lib/CodeGen/LiveVariables.cpp @@ -828,7 +828,8 @@ void LiveVariables::addNewBlock(MachineBasicBlock *BB, BBE = SuccBB->end(); BBI != BBE && BBI->isPHI(); ++BBI) { for (unsigned i = 1, e = BBI->getNumOperands(); i != e; i += 2) - if (BBI->getOperand(i + 1).getMBB() == BB) + if (BBI->getOperand(i + 1).getMBB() == BB && + BBI->getOperand(i).readsReg()) getVarInfo(BBI->getOperand(i).getReg()) .AliveBlocks.set(NumNew); } |