diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineCSE.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineCSE.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/MachineCSE.cpp b/llvm/lib/CodeGen/MachineCSE.cpp index 32e57a9..aaac6ad 100644 --- a/llvm/lib/CodeGen/MachineCSE.cpp +++ b/llvm/lib/CodeGen/MachineCSE.cpp @@ -250,8 +250,8 @@ bool MachineCSE::hasLivePhysRegDefUses(const MachineInstr *MI, continue; if (TargetRegisterInfo::isVirtualRegister(Reg)) continue; - // Reading constant physregs is ok. - if (!MRI->isConstantPhysReg(Reg)) + // Reading either caller preserved or constant physregs is ok. + if (!MRI->isCallerPreservedOrConstPhysReg(Reg)) for (MCRegAliasIterator AI(Reg, TRI, true); AI.isValid(); ++AI) PhysRefs.insert(*AI); } |