diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp index df89fadb311..8b9a82e2768 100644 --- a/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp +++ b/llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp @@ -1672,10 +1672,14 @@ bool ARMPreAllocLoadStoreOpt::RescheduleOps(MachineBasicBlock *MBB, Ops.pop_back(); Ops.pop_back(); + const TargetInstrDesc &TID = TII->get(NewOpc); + const TargetRegisterClass *TRC = TID.OpInfo[0].getRegClass(TRI); + MRI->constrainRegClass(EvenReg, TRC); + MRI->constrainRegClass(OddReg, TRC); + // Form the pair instruction. if (isLd) { - MachineInstrBuilder MIB = BuildMI(*MBB, InsertPos, - dl, TII->get(NewOpc)) + MachineInstrBuilder MIB = BuildMI(*MBB, InsertPos, dl, TID) .addReg(EvenReg, RegState::Define) .addReg(OddReg, RegState::Define) .addReg(BaseReg); @@ -1687,8 +1691,7 @@ bool ARMPreAllocLoadStoreOpt::RescheduleOps(MachineBasicBlock *MBB, MIB.addImm(Offset).addImm(Pred).addReg(PredReg); ++NumLDRDFormed; } else { - MachineInstrBuilder MIB = BuildMI(*MBB, InsertPos, - dl, TII->get(NewOpc)) + MachineInstrBuilder MIB = BuildMI(*MBB, InsertPos, dl, TID) .addReg(EvenReg) .addReg(OddReg) .addReg(BaseReg); |
