diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineRegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineRegisterInfo.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineRegisterInfo.cpp b/llvm/lib/CodeGen/MachineRegisterInfo.cpp index 84d130fae3c..dfa0a4af334 100644 --- a/llvm/lib/CodeGen/MachineRegisterInfo.cpp +++ b/llvm/lib/CodeGen/MachineRegisterInfo.cpp @@ -487,6 +487,13 @@ bool MachineRegisterInfo::isConstantPhysReg(unsigned PhysReg) const { return true; } +bool +MachineRegisterInfo::isCallerPreservedOrConstPhysReg(unsigned PhysReg) const { + const TargetRegisterInfo *TRI = getTargetRegisterInfo(); + return isConstantPhysReg(PhysReg) || + TRI->isCallerPreservedPhysReg(PhysReg, *MF); +} + /// markUsesInDebugValueAsUndef - Mark every DBG_VALUE referencing the /// specified register as undefined which causes the DBG_VALUE to be /// deleted during LiveDebugVariables analysis. |
