Rebased PNaCl localmods in LLVM to 223109

lib/Bitcode/NaCl/Analysis/NaClBitcodeBitsAndAbbrevsDist.cpp

Index: lib/Bitcode/NaCl/Analysis/NaClBitcodeBitsAndAbbrevsDist.cpp
diff --git a/lib/Bitcode/NaCl/Analysis/NaClBitcodeBitsAndAbbrevsDist.cpp b/lib/Bitcode/NaCl/Analysis/NaClBitcodeBitsAndAbbrevsDist.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..ae1d3cbcffa88ef2b7d5b927caa01c9e0d554c52
--- /dev/null
+++ b/lib/Bitcode/NaCl/Analysis/NaClBitcodeBitsAndAbbrevsDist.cpp
@@ -0,0 +1,42 @@
+//===- NaClBitcodeBitsAndAbbrevsDist.cpp ------------------*- C++ -*-===//
+//     Implements distributions of values with the corresponding
+//     number of bits and percentage of abbreviations used in PNaCl
+//     bitcode records.
+//
+//                     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/NaClBitcodeBitsAndAbbrevsDist.h"
+
+using namespace llvm;
+
+NaClBitcodeBitsAndAbbrevsDistElement::~NaClBitcodeBitsAndAbbrevsDistElement() {}
+
+void NaClBitcodeBitsAndAbbrevsDistElement::
+AddRecord(const NaClBitcodeRecord &Record) {
+  NaClBitcodeBitsDistElement::AddRecord(Record);
+  if (Record.UsedAnAbbreviation()) {
+    ++NumAbbrevs;
+  }
+}
+
+void NaClBitcodeBitsAndAbbrevsDistElement::
+PrintStatsHeader(raw_ostream &Stream) const {
+  NaClBitcodeBitsDistElement::PrintStatsHeader(Stream);
+  Stream << "   % Abv";
+}
+
+void NaClBitcodeBitsAndAbbrevsDistElement::
+PrintRowStats(raw_ostream &Stream,
+              const NaClBitcodeDist *Distribution) const {
+  NaClBitcodeBitsDistElement::PrintRowStats(Stream, Distribution);
+  if (GetNumAbbrevs())
+    Stream << format(" %7.2f",
+                     (double) GetNumAbbrevs()/GetNumInstances()*100.0);
+  else
+    Stream << "        ";
+}