Name Change: llvm-abcd -> llvm-bcanalyzer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14555 91177308-0d34-0410-b5e6-96231b3b80d8

tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp

@@ -0,0 +1,98 @@
+//===-- llvm-bcanalyzer.cpp - Byte Code Analyzer --------------------------===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the 
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+// This tool may be invoked in the following manner:
+//  llvm-bcanalyzer [options]      - Read LLVM bytecode from stdin
+//  llvm-bcanalyzer [options] x.bc - Read LLVM bytecode from the x.bc file
+//
+//  Options:
+//      --help      - Output information about command line switches
+//      --nodetails - Don't print out detailed informaton about individual 
+//                    blocks and functions
+//      --dump      - Dump low-level bytecode structure in readable format
+//
+// This tool provides analytical information about a bytecode file. It is
+// intended as an aid to developers of bytecode reading and writing software. It
+// produces on std::out a summary of the bytecode file that shows various 
+// statistics about the contents of the file. By default this information is
+// detailed and contains information about individual bytecode blocks and the
+// functions in the module. To avoid this more detailed output, use the 
+// -nodetails option to limit the output to just module level information.
+// The tool is also able to print a bytecode file in a straight forward text 
+// format that shows the containment and relationships of the information in 
+// the bytecode file (-dump option). 
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Analysis/Verifier.h"
+#include "llvm/Bytecode/Analyzer.h"
+#include "Support/CommandLine.h"
+#include "llvm/System/Signals.h"
+#include <fstream>
+#include <iostream>
+
+using namespace llvm;
+
+static cl::opt<std::string>
+  InputFilename(cl::Positional, cl::desc("<input bytecode>"), cl::init("-"));
+
+static cl::opt<bool> NoDetails ("nodetails", cl::desc("Skip detailed output"));
+static cl::opt<bool> Dump      ("dump", cl::desc("Dump low level bytecode trace"));
+static cl::opt<bool> Verify    ("verify", cl::desc("Progressively verify module"));
+
+int 
+main(int argc, char **argv) 
+{
+  cl::ParseCommandLineOptions(argc, argv, 
+    " llvm-bcanalyzer Analysis of ByteCode Dumper\n");
+
+  PrintStackTraceOnErrorSignal();
+
+  std::ostream* Out = &std::cout;  // Default to printing to stdout...
+  std::istream* In  = &std::cin;   // Default to reading stdin
+  std::string ErrorMessage;
+  BytecodeAnalysis bca;
+
+  /// Determine what to generate
+  bca.dumpBytecode = Dump;
+  bca.detailedResults = !NoDetails;
+  bca.progressiveVerify = Verify;
+
+  /// Analyze the bytecode file
+  Module* M = AnalyzeBytecodeFile(InputFilename, bca, &ErrorMessage);
+
+  // All that bcanalyzer does is write the gathered statistics to the output
+  PrintBytecodeAnalysis(bca,*Out);
+
+  if ( M && Verify ) {
+    std::string verificationMsg;
+    try {
+      verifyModule( *M, ThrowExceptionAction );
+    } catch (std::string& errmsg ) {
+      verificationMsg = errmsg;
+    }
+    if ( verificationMsg.length() > 0 ) 
+      std::cerr << "Final Verification Message: " << verificationMsg << "\n";
+  }
+
+
+  // If there was an error, print it and stop.
+  if ( ErrorMessage.size() ) {
+    std::cerr << argv[0] << ": " << ErrorMessage << "\n";
+    return 1;
+  }
+  
+
+  if (Out != &std::cout) {
+    ((std::ofstream*)Out)->close();
+    delete Out;
+  }
+  return 0;
+}
+
+// vim: sw=2