Rebased PNaCl localmods in LLVM to 223109

include/llvm/Bitcode/NaCl/NaClBitcodeSizeDist.h

+//===-- NaClBitcodeSizeDist.h ---------------------------------------------===//
+//      Defines distribution maps for bitcode record sizes (arity).
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Defines distribution maps for tracking bitcode record sizes
+// (arity).
+
+#ifndef LLVM_BITCODE_NACL_NACLBITCODESIZEDIST_H
+#define LLVM_BITCODE_NACL_NACLBITCODESIZEDIST_H
+
+#include "llvm/Bitcode/NaCl/NaClBitcodeDist.h"
+#include "llvm/Bitcode/NaCl/NaClBitcodeValueDist.h"
+
+namespace llvm {
+
+/// Collects the number of bitcode record instances with the same number
+/// of elements in the vector of values, with nested value distribution maps.
+class NaClBitcodeSizeDistElement : public NaClBitcodeDistElement {
+  NaClBitcodeSizeDistElement(const NaClBitcodeSizeDistElement&)
+  LLVM_DELETED_FUNCTION;
+  void operator=(const NaClBitcodeSizeDistElement&) LLVM_DELETED_FUNCTION;
+
+public:
+  static bool classof(const NaClBitcodeDistElement *Element) {
+    return Element->getKind() >= RDE_SizeDist &&
+        Element->getKind() < RDE_SizeDistLast;
+  }
+
+  NaClBitcodeSizeDistElement()
+      : NaClBitcodeDistElement(RDE_SizeDist),
+        ValueIndexDist(NaClBitcodeDist::RecordStorage,
+                       &NaClBitcodeValueIndexDistElement::Sentinel) {
+    NestedDists.push_back(&ValueIndexDist);
+  }
+
+  static NaClBitcodeSizeDistElement Sentinel;
+
+  virtual ~NaClBitcodeSizeDistElement();
+
+  virtual NaClBitcodeDistElement *CreateElement(
+      NaClBitcodeDistValue Value) const;
+
+  virtual void GetValueList(const NaClBitcodeRecord &Record,
+                            ValueListType &ValueList) const;
+
+  virtual void AddRecord(const NaClBitcodeRecord &Record);
+
+  virtual const SmallVectorImpl<NaClBitcodeDist*> *
+  GetNestedDistributions() const;
+
+  virtual const char *GetTitle() const;
+
+  virtual const char *GetValueHeader() const;
+
+  virtual void PrintRowValue(raw_ostream &Stream,
+                             NaClBitcodeDistValue Value,
+                             const NaClBitcodeDist *Distribution) const;
+
+  NaClBitcodeDist &GetValueIndexDist() {
+    return ValueIndexDist;
+  }
+
+private:
+  // Nested blocks used by GetNestedDistributions.
+  SmallVector<NaClBitcodeDist*, 1> NestedDists;
+
+  // The value distributions associated with records of the given size.
+  NaClBitcodeDist ValueIndexDist;
+};
+
+}
+
+#endif