diff options
Diffstat (limited to 'lib/Target/ARM/ARMLoadStoreOptimizer.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMLoadStoreOptimizer.cpp | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp index df89fad..f4645f1 100644 --- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp +++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp @@ -947,8 +947,8 @@ bool ARMLoadStoreOpt::MergeBaseUpdateLoadStore(MachineBasicBlock &MBB, return true; } -/// isMemoryOp - Returns true if instruction is a memory operations (that this -/// pass is capable of operating on). +/// isMemoryOp - Returns true if instruction is a memory operation that this +/// pass is capable of operating on. static bool isMemoryOp(const MachineInstr *MI) { // When no memory operands are present, conservatively assume unaligned, // volatile, unfoldable. @@ -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); |
