diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineBlockPlacement.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineBlockPlacement.cpp | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/llvm/lib/CodeGen/MachineBlockPlacement.cpp b/llvm/lib/CodeGen/MachineBlockPlacement.cpp index 4838e6b6cc2..c190b2a66c6 100644 --- a/llvm/lib/CodeGen/MachineBlockPlacement.cpp +++ b/llvm/lib/CodeGen/MachineBlockPlacement.cpp @@ -403,8 +403,6 @@ MachineBlockPlacement::selectBestSuccessor(MachineBasicBlock *BB, } else { BlockChain *SuccChain = BlockToChain[Succ]; if (SuccChain == &Chain) { - DEBUG(dbgs() << " " << getBlockName(Succ) - << " -> Already merged!\n"); SkipSucc = true; } else if (Succ != *SuccChain->begin()) { DEBUG(dbgs() << " " << getBlockName(Succ) << " -> Mid chain!\n"); @@ -524,10 +522,9 @@ MachineBasicBlock *MachineBlockPlacement::selectBestCandidateBlock( BlockFrequency BestFreq; for (MachineBasicBlock *MBB : WorkList) { BlockChain &SuccChain = *BlockToChain[MBB]; - if (&SuccChain == &Chain) { - DEBUG(dbgs() << " " << getBlockName(MBB) << " -> Already merged!\n"); + if (&SuccChain == &Chain) continue; - } + assert(SuccChain.LoopPredecessors == 0 && "Found CFG-violating block"); BlockFrequency CandidateFreq = MBFI->getBlockFreq(MBB); |
