diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/FastISel.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp index 7e30053..251e96a 100644 --- a/lib/CodeGen/SelectionDAG/FastISel.cpp +++ b/lib/CodeGen/SelectionDAG/FastISel.cpp @@ -158,7 +158,7 @@ unsigned FastISel::UpdateValueMap(Value* I, unsigned Reg) { unsigned &AssignedReg = ValueMap[I]; if (AssignedReg == 0) AssignedReg = Reg; - else { + else if (Reg != AssignedReg) { const TargetRegisterClass *RegClass = MRI.getRegClass(Reg); TII.copyRegToReg(*MBB, MBB->end(), AssignedReg, Reg, RegClass, RegClass); |