diff options
| -rw-r--r-- | lib/Target/ARM/ARMBaseInstrInfo.cpp | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/lib/Target/ARM/ARMBaseInstrInfo.cpp b/lib/Target/ARM/ARMBaseInstrInfo.cpp index cceb05e461..e30f6d200c 100644 --- a/lib/Target/ARM/ARMBaseInstrInfo.cpp +++ b/lib/Target/ARM/ARMBaseInstrInfo.cpp @@ -2746,11 +2746,12 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData, unsigned NewUseIdx; const MachineInstr *NewUseMI = getBundledUseMI(&getRegisterInfo(), UseMI, Reg, NewUseIdx, UseAdj); - if (NewUseMI) { - UseMI = NewUseMI; - UseIdx = NewUseIdx; - UseMCID = &UseMI->getDesc(); - } + if (!NewUseMI) + return -1; + + UseMI = NewUseMI; + UseIdx = NewUseIdx; + UseMCID = &UseMI->getDesc(); } if (Reg == ARM::CPSR) { @@ -2778,6 +2779,9 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData, return Latency; } + if (DefMO.isImplicit() || UseMI->getOperand(UseIdx).isImplicit()) + return -1; + unsigned DefAlign = DefMI->hasOneMemOperand() ? (*DefMI->memoperands_begin())->getAlignment() : 0; unsigned UseAlign = UseMI->hasOneMemOperand() |