[SLP] remove unused reduction functions; NFC

These were made obsolete by simplifying the code in recent patches.

diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 3f1279b..e1befc4 100644 (file)
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -6615,16 +6615,6 @@ class HorizontalReduction {
       return Kind == OD.Kind && Opcode == OD.Opcode;
     }
     bool operator!=(const OperationData &OD) const { return !(*this == OD); }
-    void clear() {
-      Opcode = 0;
-      Kind = RecurKind::None;
-    }
-
-    /// Get the opcode of the reduction operation.
-    unsigned getOpcode() const {
-      assert(isVectorizable() && "Expected vectorizable operation.");
-      return Opcode;
-    }
 
     /// Get kind of reduction data.
     RecurKind getKind() const { return Kind; }