Rebased PNaCl localmods in LLVM to 223109

tools/pnacl-bcanalyzer/pnacl-bcanalyzer.cpp

Index: tools/pnacl-bcanalyzer/pnacl-bcanalyzer.cpp
diff --git a/tools/pnacl-bcanalyzer/pnacl-bcanalyzer.cpp b/tools/pnacl-bcanalyzer/pnacl-bcanalyzer.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..6d6f8ab8639c1950988a08088d1581d8ac5231ec
--- /dev/null
+++ b/tools/pnacl-bcanalyzer/pnacl-bcanalyzer.cpp
@@ -0,0 +1,80 @@
+//===-- pnacl-bcanalyzer.cpp - Bitcode Analyzer -------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This tool is a thin wrapper over NaClBitcodeAnalyzer; see
+// NaClBitcodeAnalyzer.h for more details.
+// 
+// Invoke in the following manner:
+//
+//  pnacl-bcanalyzer [options]      - Read frozen PNaCl bitcode from stdin
+//  pnacl-bcanalyzer [options] x.bc - Read frozen PNaCl bitcode from the x.bc
+//                                    file
+// Run with -help to see supported options.
+//
+//===----------------------------------------------------------------------===//
+
+#define DEBUG_TYPE "pnacl-bcanalyzer"
+
+#include "llvm/Bitcode/NaCl/NaClBitcodeAnalyzer.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
+
+
+static cl::opt<std::string>
+  InputFilename(cl::Positional, cl::desc("<input bitcode>"), cl::init("-"));
+
+static cl::opt<bool>
+ OptDumpRecords(
+     "dump-records",
+     cl::desc("Dump contents of records in bitcode, leaving out details, "
+              "instead of displaying record distributions."),
+     cl::init(false));
+
+static cl::opt<bool>
+OptDumpDetails(
+    "dump-details",
+    cl::desc("Include details when dumping contents of records in bitcode."),
+    cl::init(false));
+
+static cl::opt<unsigned> OpsPerLine(
+    "operands-per-line",
+    cl::desc("Number of operands to print per dump line. 0 implies "
+             "all operands will be printed on the same line (default)"),
+    cl::init(0));
+
+static cl::opt<bool> OrderBlocksByID(
+    "order-blocks-by-id",
+    cl::desc("Print blocks statistics based on block id rather than size"),
+    cl::init(false));
+
+int main(int argc, char **argv) {
+  // Print a stack trace if we signal out.
+  sys::PrintStackTraceOnErrorSignal();
+  PrettyStackTraceProgram X(argc, argv);
+  llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
+  cl::ParseCommandLineOptions(argc, argv, "pnacl-bcanalyzer file analyzer\n");
+
+  if (OptDumpDetails && !OptDumpRecords) {
+    errs() << "Can't dump details unless records are dumped!\n";
+    return 1;
+  }
+
+  AnalysisDumpOptions DumpOptions;
+  DumpOptions.DumpRecords = OptDumpRecords;
+  DumpOptions.DumpDetails = OptDumpDetails;
+  DumpOptions.OpsPerLine = OpsPerLine;
+  DumpOptions.OrderBlocksByID = OrderBlocksByID;
+
+  return AnalyzeBitcodeInFile(InputFilename, outs(), DumpOptions);
+}