1 files changed, 4 insertions, 0 deletions
diff --git a/include/llvm/Analysis/CodeMetrics.h b/include/llvm/Analysis/CodeMetrics.h
index 033e19bc7f..7116078349 100644
--- a/include/llvm/Analysis/CodeMetrics.h
+++ b/include/llvm/Analysis/CodeMetrics.h
@@ -20,9 +20,13 @@
 namespace llvm {
   class BasicBlock;
   class Function;
+  class Instruction;
   class TargetData;
   class Value;
 
+  /// \brief Check whether an instruction is likely to be "free" when lowered.
+  bool isInstructionFree(const Instruction *I, const TargetData *TD = 0);
+
   /// \brief Check whether a call will lower to something small.
   ///
   /// This tests checks whether calls to this function will lower to something