Revert "Include optional subclass flags, such as inbounds, nsw, etc., ...", this

breaks MiniSAT on x86_64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81098 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Value.h

@@ -146,6 +146,12 @@ public:
   // Only use when in type resolution situations!
   void uncheckedReplaceAllUsesWith(Value *V);
 
+  /// clearOptionalData - Clear any optional optimization data from this Value.
+  /// Transformation passes must call this method whenever changing the IR
+  /// in a way that would affect the values produced by this Value, unless
+  /// it takes special care to ensure correctness in some other way.
+  void clearOptionalData() { SubclassOptionalData = 0; }
+
   //----------------------------------------------------------------------
   // Methods for handling the chain of uses of this Value.
   //
@@ -234,13 +240,6 @@ public:
     return SubclassID;
   }
 
-  /// getRawSubclassOptionalData - Return the raw optional flags value
-  /// contained in this value. This should only be used when testing two
-  /// Values for equivalence.
-  unsigned getRawSubclassOptionalData() const {
-    return SubclassOptionalData;
-  }
-
   /// hasSameSubclassOptionalData - Test whether the optional flags contained
   /// in this value are equal to the optional flags in the given value.
   bool hasSameSubclassOptionalData(const Value *V) const {