diff options
Diffstat (limited to 'llvm/lib/CodeGen/PHIElimination.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/PHIElimination.cpp | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/llvm/lib/CodeGen/PHIElimination.cpp b/llvm/lib/CodeGen/PHIElimination.cpp index 65f4c7253f8..c8d0819ad13 100644 --- a/llvm/lib/CodeGen/PHIElimination.cpp +++ b/llvm/lib/CodeGen/PHIElimination.cpp @@ -533,11 +533,13 @@ void PHIElimination::LowerPHINode(MachineBasicBlock &MBB, /// void PHIElimination::analyzePHINodes(const MachineFunction& MF) { for (const auto &MBB : MF) - for (MachineBasicBlock::const_iterator BBI = MBB.begin(), BBE = MBB.end(); - BBI != BBE && BBI->isPHI(); ++BBI) - for (unsigned i = 1, e = BBI->getNumOperands(); i != e; i += 2) - ++VRegPHIUseCount[BBVRegPair(BBI->getOperand(i+1).getMBB()->getNumber(), - BBI->getOperand(i).getReg())]; + for (const auto &BBI : MBB) { + if (!BBI.isPHI()) + break; + for (unsigned i = 1, e = BBI.getNumOperands(); i != e; i += 2) + ++VRegPHIUseCount[BBVRegPair(BBI.getOperand(i+1).getMBB()->getNumber(), + BBI.getOperand(i).getReg())]; + } } bool PHIElimination::SplitPHIEdges(MachineFunction &MF, |
