diff options
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index 0c7ce7c2490..092e443d7d6 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -4604,7 +4604,11 @@ bool X86InstrInfo::getMemOpBaseRegImmOfs(MachineInstr *MemOp, unsigned &BaseReg, MemRefBegin += X86II::getOperandBias(Desc); - BaseReg = MemOp->getOperand(MemRefBegin + X86::AddrBaseReg).getReg(); + MachineOperand &BaseMO = MemOp->getOperand(MemRefBegin + X86::AddrBaseReg); + if (!BaseMO.isReg()) // Can be an MO_FrameIndex + return false; + + BaseReg = BaseMO.getReg(); if (MemOp->getOperand(MemRefBegin + X86::AddrScaleAmt).getImm() != 1) return false; |
