Add ISD::isBuildVectorAllZeros predicate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27147 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 1 deletions

diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index df76524ca1..4863940de2 100644
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -458,7 +458,10 @@ namespace ISD {
   /// isBuildVectorAllOnesInteger - Return true if the specified node is a
   /// BUILD_VECTOR where all of the elements are ~0 or undef.
   bool isBuildVectorAllOnesInteger(const SDNode *N);
-  
+
+  /// isBuildVectorAllZeros - Return true if the specified node is a
+  /// BUILD_VECTOR where all of the elements are 0 or undef.
+  bool isBuildVectorAllZeros(const SDNode *N);
   
   //===--------------------------------------------------------------------===//
   /// ISD::CondCode enum - These are ordered carefully to make the bitfields