diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/MachineInstr.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp index 965c2a2c5d2..ade8683ec79 100644 --- a/llvm/lib/CodeGen/MachineInstr.cpp +++ b/llvm/lib/CodeGen/MachineInstr.cpp @@ -739,7 +739,7 @@ bool MachineInstr::isRegReDefinedByTwoAddr(unsigned DefIdx) const{ bool MachineInstr::isRegTiedToDefOperand(unsigned UseOpIdx, unsigned *DefOpIdx){ if (getOpcode() == TargetInstrInfo::INLINEASM) { const MachineOperand &MO = getOperand(UseOpIdx); - if (!MO.isReg() || !MO.isUse()) + if (!MO.isReg() || !MO.isUse() || MO.getReg() == 0) return false; assert(UseOpIdx > 0); const MachineOperand &UFMO = getOperand(UseOpIdx-1); |
