diff --git a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
index 8b66790679d9..8ab4c0616880 100644
--- a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -183,16 +183,6 @@ namespace {
 
     void PreprocessISelDAG() override;
 
-    inline bool immSext8(SDNode *N) const {
-      return isInt<8>(cast<ConstantSDNode>(N)->getSExtValue());
-    }
-
-    // True if the 64-bit immediate fits in a 32-bit sign-extended field.
-    inline bool i64immSExt32(SDNode *N) const {
-      uint64_t v = cast<ConstantSDNode>(N)->getZExtValue();
-      return (int64_t)v == (int32_t)v;
-    }
-
 // Include the pieces autogenerated from the target description.
 #include "X86GenDAGISel.inc"