diff options
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 7950ee02ae..655c76265c 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -3190,9 +3190,15 @@ ARMTargetLowering::EmitAtomicBinary(MachineInstr *MI, MachineBasicBlock *BB, // fallthrough --> exitMBB BB = loopMBB; AddDefaultPred(BuildMI(BB, dl, TII->get(ldrOpc), dest).addReg(ptr)); - if (BinOpcode) - AddDefaultPred(BuildMI(BB, dl, TII->get(BinOpcode), scratch2). - addReg(dest).addReg(incr)).addReg(0); + if (BinOpcode) { + // operand order needs to go the other way for NAND + if (BinOpcode == ARM::BICrr || BinOpcode == ARM::t2BICrr) + AddDefaultPred(BuildMI(BB, dl, TII->get(BinOpcode), scratch2). + addReg(incr).addReg(dest)).addReg(0); + else + AddDefaultPred(BuildMI(BB, dl, TII->get(BinOpcode), scratch2). + addReg(dest).addReg(incr)).addReg(0); + } AddDefaultPred(BuildMI(BB, dl, TII->get(strOpc), scratch).addReg(scratch2) .addReg(ptr)); |