diff options
Diffstat (limited to 'lib/CodeGen/MachineRegisterInfo.cpp')
| -rw-r--r-- | lib/CodeGen/MachineRegisterInfo.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/CodeGen/MachineRegisterInfo.cpp b/lib/CodeGen/MachineRegisterInfo.cpp index 7d40e66eb8..f140decd96 100644 --- a/lib/CodeGen/MachineRegisterInfo.cpp +++ b/lib/CodeGen/MachineRegisterInfo.cpp @@ -161,9 +161,8 @@ void MachineRegisterInfo::replaceRegWith(unsigned FromReg, unsigned ToReg) { /// form, so there should only be one definition. MachineInstr *MachineRegisterInfo::getVRegDef(unsigned Reg) const { // Since we are in SSA form, we can use the first definition. - if (!def_empty(Reg)) - return &*def_begin(Reg); - return 0; + def_iterator I = def_begin(Reg); + return !I.atEnd() ? &*I : 0; } bool MachineRegisterInfo::hasOneUse(unsigned RegNo) const { |