1 files changed, 5 insertions, 0 deletions
diff --git a/include/llvm/Analysis/TargetTransformInfo.h b/include/llvm/Analysis/TargetTransformInfo.h
index ddf615fe3b..1679c4f2b3 100644
--- a/include/llvm/Analysis/TargetTransformInfo.h
+++ b/include/llvm/Analysis/TargetTransformInfo.h
@@ -148,6 +148,11 @@ public:
   /// set to false, it returns the number of scalar registers.
   virtual unsigned getNumberOfRegisters(bool Vector) const;
 
+  /// \return The maximum unroll factor that the vectorizer should try to
+  /// perform for this target. This number depends on the level of parallelism
+  /// and the number of execution units in the CPU.
+  virtual unsigned getMaximumUnrollFactor() const;
+
   /// \return The expected cost of arithmetic ops, such as mul, xor, fsub, etc.
   virtual unsigned getArithmeticInstrCost(unsigned Opcode, Type *Ty) const;