[IR] Remove validAlignment and validPointer methods DataLayout as they aren't used.

I don't think validAlignment has been used since r34358 in 2007. I think validPointer was copied from validAlignment some time later, but it definitely wasn't used in the first commit that contained it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298458 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/IR/DataLayout.h

@@ -134,14 +134,6 @@ private:
 
   PointersTy::iterator findPointerLowerBound(uint32_t AddressSpace);
 
-  /// This member is a signal that a requested alignment type and bit width were
-  /// not found in the SmallVector.
-  static const LayoutAlignElem InvalidAlignmentElem;
-
-  /// This member is a signal that a requested pointer type and bit width were
-  /// not found in the DenseSet.
-  static const PointerAlignElem InvalidPointerElem;
-
   // The StructType -> StructLayout map.
   mutable void *LayoutMap;
 
@@ -159,22 +151,6 @@ private:
   /// Internal helper method that returns requested alignment for type.
   unsigned getAlignment(Type *Ty, bool abi_or_pref) const;
 
-  /// \brief Valid alignment predicate.
-  ///
-  /// Predicate that tests a LayoutAlignElem reference returned by get() against
-  /// InvalidAlignmentElem.
-  bool validAlignment(const LayoutAlignElem &align) const {
-    return &align != &InvalidAlignmentElem;
-  }
-
-  /// \brief Valid pointer predicate.
-  ///
-  /// Predicate that tests a PointerAlignElem reference returned by get()
-  /// against \c InvalidPointerElem.
-  bool validPointer(const PointerAlignElem &align) const {
-    return &align != &InvalidPointerElem;
-  }
-
   /// Parses a target data specification string. Assert if the string is
   /// malformed.
   void parseSpecifier(StringRef LayoutDescription);

lib/IR/DataLayout.cpp

@@ -118,9 +118,6 @@ LayoutAlignElem::operator==(const LayoutAlignElem &rhs) const {
           && TypeBitWidth == rhs.TypeBitWidth);
 }
 
-const LayoutAlignElem
-DataLayout::InvalidAlignmentElem = { INVALID_ALIGN, 0, 0, 0 };
-
 //===----------------------------------------------------------------------===//
 // PointerAlignElem, PointerAlign support
 //===----------------------------------------------------------------------===//
@@ -145,9 +142,6 @@ PointerAlignElem::operator==(const PointerAlignElem &rhs) const {
           && TypeByteWidth == rhs.TypeByteWidth);
 }
 
-const PointerAlignElem
-DataLayout::InvalidPointerElem = { 0U, 0U, 0U, ~0U };
-
 //===----------------------------------------------------------------------===//
 //                       DataLayout Class Implementation
 //===----------------------------------------------------------------------===//