diff options
| -rw-r--r-- | llvm/lib/CodeGen/MachineCSE.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/MachineCSE.cpp b/llvm/lib/CodeGen/MachineCSE.cpp index af35a7a3bb3..b376e3d05fe 100644 --- a/llvm/lib/CodeGen/MachineCSE.cpp +++ b/llvm/lib/CodeGen/MachineCSE.cpp @@ -238,8 +238,9 @@ bool MachineCSE::ProcessBlock(MachineDomTreeNode *Node) { continue; unsigned OldReg = MO.getReg(); unsigned NewReg = CSMI->getOperand(i).getReg(); - assert(OldReg != NewReg && - TargetRegisterInfo::isVirtualRegister(OldReg) && + if (OldReg == NewReg) + continue; + assert(TargetRegisterInfo::isVirtualRegister(OldReg) && TargetRegisterInfo::isVirtualRegister(NewReg) && "Do not CSE physical register defs!"); MRI->replaceRegWith(OldReg, NewReg); |
