Push constness through LoopInfo::isLoopHeader and clean it up a bit.

[oota-llvm.git] / include / llvm / CodeGen / MachineInstr.h

diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h
index d04ea567bbc79b124cae18a6ab5eeab07bf91c19..564b8da37dc723e82a6a6196d0518ce2d1c43853 100644 (file)
--- a/include/llvm/CodeGen/MachineInstr.h
+++ b/include/llvm/CodeGen/MachineInstr.h
@@ -331,6 +331,11 @@ public:
         operands_begin() + getDesc().getNumDefs(), operands_end());
   }
 
+  /// Returns the number of the operand iterator \p I points to.
+  unsigned getOperandNo(const_mop_iterator I) const {
+    return I - operands_begin();
+  }
+
   /// Access to memory operands of the instruction
   mmo_iterator memoperands_begin() const { return MemRefs; }
   mmo_iterator memoperands_end() const { return MemRefs + NumMemRefs; }