Use findRegisterUseOperand to find a kill of particular register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34512 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 2 deletions

diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index 9cefe7bf20..ef06d97ea9 100644
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -390,8 +390,9 @@ public:
   }
 
   /// findRegisterUseOperand() - Returns the MachineOperand that is a use of
-  /// the specific register or NULL if it is not found.
-  MachineOperand *findRegisterUseOperand(unsigned Reg);
+  /// the specific register or NULL if it is not found. It further tightening
+  /// the search criteria to a use that kills the register if isKill is true.
+  MachineOperand *findRegisterUseOperand(unsigned Reg, bool isKill = false);
   
   /// findRegisterDefOperand() - Returns the MachineOperand that is a def of
   /// the specific register or NULL if it is not found.