1 files changed, 115 insertions, 0 deletions
diff --git a/tools/llvm-abcd/llvm-abcd.cpp b/tools/llvm-abcd/llvm-abcd.cpp
new file mode 100644
index 0000000000..22ab0b049c
--- /dev/null
+++ b/tools/llvm-abcd/llvm-abcd.cpp
@@ -0,0 +1,115 @@
+//===-- llvm-dis.cpp - The low-level LLVM disassembler --------------------===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+// This utility may be invoked in the following manner:
+//  llvm-dis [options]      - Read LLVM bytecode from stdin, write asm to stdout
+//  llvm-dis [options] x.bc - Read LLVM bytecode from the x.bc file, write asm
+//                            to the x.ll file.
+//  Options:
+//      --help   - Output information about command line switches
+//       -c      - Print C code instead of LLVM assembly
+//
+//===----------------------------------------------------------------------===//
+
+#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<std::string> 
+  OutputFilename("o", cl::desc("Override output filename"), 
+    cl::value_desc("filename"));
+
+static cl::opt<bool> Force      ("f", cl::desc("Overwrite output files"));
+static cl::opt<bool> Detailed   ("d", cl::desc("Detailed output"));
+
+int 
+main(int argc, char **argv) 
+{
+  cl::ParseCommandLineOptions(argc, argv, 
+    " llvm-abcd 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;
+
+  /// Analyze the bytecode file
+  AnalyzeBytecodeFile(InputFilename, bca, &ErrorMessage);
+
+  // If there was an error, print it and stop.
+  if ( ErrorMessage.size() ) {
+    std::cerr << argv[0] << ": " << ErrorMessage << "\n";
+    return 1;
+  }
+  
+  // Figure out where the output is going
+  if (OutputFilename != "") {   // Specified an output filename?
+    if (OutputFilename != "-") { // Not stdout?
+      if (!Force && std::ifstream(OutputFilename.c_str())) {
+        // If force is not specified, make sure not to overwrite a file!
+        std::cerr << argv[0] << ": error opening '" << OutputFilename
+                  << "': file exists! Sending to standard output.\n";
+      } else {
+        Out = new std::ofstream(OutputFilename.c_str());
+      }
+    }
+  } else {
+    if (InputFilename == "-") {
+      OutputFilename = "-";
+    } else {
+      std::string IFN = InputFilename;
+      int Len = IFN.length();
+      if (IFN[Len-3] == '.' && IFN[Len-2] == 'b' && IFN[Len-1] == 'c') {
+	// Source ends in .bc
+	OutputFilename = std::string(IFN.begin(), IFN.end()-3)+".abc";
+      } else {
+	OutputFilename = IFN+".abc";
+      }
+
+      if (!Force && std::ifstream(OutputFilename.c_str())) {
+        // If force is not specified, make sure not to overwrite a file!
+        std::cerr << argv[0] << ": error opening '" << OutputFilename
+                  << "': file exists! Sending to standard output.\n";
+      } else {
+        Out = new std::ofstream(OutputFilename.c_str());
+
+        // Make sure that the Out file gets unlinked from the disk if we get a
+        // SIGINT
+        RemoveFileOnSignal(OutputFilename);
+      }
+    }
+  }
+
+  if (!Out->good()) {
+    std::cerr << argv[0] << ": error opening " << OutputFilename
+              << ": sending to stdout instead!\n";
+    Out = &std::cout;
+  }
+
+  // All that abcd does is write the gathered statistics to the output
+  bca.dumpBytecode = true;
+  PrintBytecodeAnalysis(bca,*Out);
+
+  if (Out != &std::cout) {
+    ((std::ofstream*)Out)->close();
+    delete Out;
+  }
+  return 0;
+}
+
+// vim: sw=2