Rebased PNaCl localmods in LLVM to 223109

lib/Bitcode/NaCl/Analysis/NaClAnalyzerBlockDist.cpp

+//===-- NaClAnalyzerBlockDist.cpp -----------------------------------------===//
+//      implements distribution maps used to collect block and record
+//      distributions for tools pnacl-bcanalyzer and pnacl-benchmark.
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Bitcode/NaCl/NaClAnalyzerBlockDist.h"
+
+using namespace llvm;
+
+NaClAnalyzerBlockDistElement::~NaClAnalyzerBlockDistElement() {}
+
+NaClBitcodeDistElement* NaClAnalyzerBlockDistElement::
+CreateElement(NaClBitcodeDistValue Value) const {
+  return new NaClAnalyzerBlockDistElement(Value, OrderBlocksByID);
+}
+
+double NaClAnalyzerBlockDistElement::
+GetImportance(NaClBitcodeDistValue Value) const {
+  if (OrderBlocksByID)
+    // Negate importance to "undo" reverse ordering of sort.
+    return -static_cast<double>(BlockID);
+  else
+    return NaClBitcodeBlockDistElement::GetImportance(Value);
+}
+
+const SmallVectorImpl<NaClBitcodeDist*> *NaClAnalyzerBlockDistElement::
+GetNestedDistributions() const {
+  return &NestedDists;
+}
+
+void NaClAnalyzerBlockDist::AddRecord(const NaClBitcodeRecord &Record) {
+  cast<NaClAnalyzerBlockDistElement>(GetElement(Record.GetBlockID()))
+      ->GetRecordDist().AddRecord(Record);
+}
+
+void NaClAnalyzerBlockDist::AddBlock(const NaClBitcodeBlock &Block) {
+  NaClBitcodeBlockDist::AddBlock(Block);
+  if (const NaClBitcodeBlock *EncBlock = Block.GetEnclosingBlock()) {
+    cast<NaClAnalyzerBlockDistElement>(GetElement(EncBlock->GetBlockID()))
+        ->GetSubblockDist().AddBlock(Block);
+  }
+}