1 files changed, 10 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/MachineInstrBuilder.h b/include/llvm/CodeGen/MachineInstrBuilder.h
index d594d1b025..a360be6de3 100644
--- a/include/llvm/CodeGen/MachineInstrBuilder.h
+++ b/include/llvm/CodeGen/MachineInstrBuilder.h
@@ -34,13 +34,22 @@ struct MachineInstrBuilder {
     return *this;
   }
 
-  /// addReg - Add an LLVM value that is to be used as a register...x
+  /// addReg - Add an LLVM value that is to be used as a register...
   ///
   MachineInstrBuilder &addReg(Value *V, bool isDef = false, bool isDNU = false){
     MI->addRegOperand(V, isDef, isDNU);
     return *this;
   }
 
+  /// addClobber - Assert that this MI is going to clobber a specific
+  /// register. Useful for instructions that always clobber certain hard regs.
+  /// (Same as addReg(RegNo, true) but shorter and more obvious).
+  ///
+  MachineInstrBuilder &addClobber(int RegNo) {
+    MI->addRegOperand(RegNo, true);
+    return *this;
+  }
+
   /// addPCDisp - Add an LLVM value to be treated as a PC relative
   /// displacement...
   ///