1 files changed, 4 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index db42fb6c170c0..051c93601d3fe 100644
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -85,7 +85,10 @@ namespace ISD {
 
   /// If N is a BUILD_VECTOR node whose elements are all the same constant or
   /// undefined, return true and return the constant value in \p SplatValue.
-  bool isConstantSplatVector(const SDNode *N, APInt &SplatValue);
+  /// This sets \p SplatValue to the smallest possible splat unless AllowShrink
+  /// is set to false.
+  bool isConstantSplatVector(const SDNode *N, APInt &SplatValue,
+                             bool AllowShrink = true);
 
   /// Return true if the specified node is a BUILD_VECTOR where all of the
   /// elements are ~0 or undef.