diff options
Diffstat (limited to 'lib/CodeGen/MachineCSE.cpp')
| -rw-r--r-- | lib/CodeGen/MachineCSE.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp index a63688e9ec..f2539baabd 100644 --- a/lib/CodeGen/MachineCSE.cpp +++ b/lib/CodeGen/MachineCSE.cpp @@ -216,11 +216,10 @@ bool MachineCSE::hasLivePhysRegDefUses(const MachineInstr *MI, if (MO.isDef() && (MO.isDead() || isPhysDefTriviallyDead(Reg, I, MBB->end()))) continue; - PhysRefs.insert(Reg); + for (MCRegAliasIterator AI(Reg, TRI, true); AI.isValid(); ++AI) + PhysRefs.insert(*AI); if (MO.isDef()) PhysDefs.push_back(Reg); - for (const uint16_t *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias) - PhysRefs.insert(*Alias); } return !PhysRefs.empty(); |