diff options
Diffstat (limited to 'llvm/lib/CodeGen/LiveIntervals.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveIntervals.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/LiveIntervals.cpp b/llvm/lib/CodeGen/LiveIntervals.cpp index 05b4f5a1245..e4b134bc9d5 100644 --- a/llvm/lib/CodeGen/LiveIntervals.cpp +++ b/llvm/lib/CodeGen/LiveIntervals.cpp @@ -146,7 +146,8 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock* mbb, unsigned liveBlockIndex = it->first; MachineBasicBlock* liveBlock = it->second; if (liveBlockIndex < vi.AliveBlocks.size() && - vi.AliveBlocks[liveBlockIndex]) { + vi.AliveBlocks[liveBlockIndex] && + !liveBlock->empty()) { unsigned start = getInstructionIndex(liveBlock->front()); unsigned end = getInstructionIndex(liveBlock->back()) + 1; interval->addRange(start, end); |
