diff options
| -rw-r--r-- | include/llvm/CodeGen/MachineRegisterInfo.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineRegisterInfo.h b/include/llvm/CodeGen/MachineRegisterInfo.h index f5fda9bfc0..b93794c1be 100644 --- a/include/llvm/CodeGen/MachineRegisterInfo.h +++ b/include/llvm/CodeGen/MachineRegisterInfo.h @@ -90,6 +90,10 @@ public: } static use_iterator use_end() { return use_iterator(0); } + /// use_empty - Return true if there are no instructions using the specified + /// register. + bool use_empty(unsigned RegNo) const { return use_begin(RegNo) == use_end(); } + /// replaceRegWith - Replace all instances of FromReg with ToReg in the /// machine function. This is like llvm-level X->replaceAllUsesWith(Y), |