1 files changed, 6 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index 003ed15f05..08ada4cc91 100644
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -231,6 +231,12 @@ public:
     return getOpcode() == TargetOpcode::COPY;
   }
 
+  /// isCopyLike - Return true if the instruction behaves like a copy.
+  /// This does not include native copy instructions.
+  bool isCopyLike() const {
+    return isCopy() || isSubregToReg() || isExtractSubreg() || isInsertSubreg();
+  }
+
   /// readsRegister - Return true if the MachineInstr reads the specified
   /// register. If TargetRegisterInfo is passed, then it also checks if there
   /// is a read of a super-register.