diff options
| -rw-r--r-- | lib/CodeGen/TwoAddressInstructionPass.cpp | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp index a702c6c840..6796312649 100644 --- a/lib/CodeGen/TwoAddressInstructionPass.cpp +++ b/lib/CodeGen/TwoAddressInstructionPass.cpp @@ -999,10 +999,8 @@ TwoAddressInstructionPass::RescheduleMIBelowKill(MachineBasicBlock *MBB, } // Move debug info as well. - if (From != MBB->begin()) { - while (llvm::prior(From)->isDebugValue()) - --From; - } + while (From != MBB->begin() && llvm::prior(From)->isDebugValue()) + --From; // Copies following MI may have been moved as well. nmi = To; @@ -1146,9 +1144,8 @@ TwoAddressInstructionPass::RescheduleKillAboveMI(MachineBasicBlock *MBB, // Move the old kill above MI, don't forget to move debug info as well. MachineBasicBlock::iterator InsertPos = mi; - if (InsertPos != MBB->begin()) - while (llvm::prior(InsertPos)->isDebugValue()) - --InsertPos; + while (InsertPos != MBB->begin() && llvm::prior(InsertPos)->isDebugValue()) + --InsertPos; MachineBasicBlock::iterator From = KillMI; MachineBasicBlock::iterator To = llvm::next(From); while (llvm::prior(From)->isDebugValue()) |