//
// 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 file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
+#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
-#include "llvm/PassManager.h"
+#include "llvm/Type.h"
#include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/Assembly/AssemblyAnnotationWriter.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/Streams.h"
-#include "llvm/System/Signals.h"
-#include <iostream>
-#include <fstream>
-#include <memory>
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/ToolOutputFile.h"
+#include "llvm/Support/Signals.h"
using namespace llvm;
static cl::opt<std::string>
cl::value_desc("filename"));
static cl::opt<bool>
-Force("f", cl::desc("Overwrite output files"));
+Force("f", cl::desc("Enable binary output on terminals"));
static cl::opt<bool>
DontPrint("disable-output", cl::desc("Don't output the .ll file"), cl::Hidden);
-int main(int argc, char **argv) {
- llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
- try {
- cl::ParseCommandLineOptions(argc, argv, " llvm .bc -> .ll disassembler\n");
- sys::PrintStackTraceOnErrorSignal();
-
- std::ostream *Out = &std::cout; // Default to printing to stdout.
- std::string ErrorMessage;
+static cl::opt<bool>
+ShowAnnotations("show-annotations",
+ cl::desc("Add informational comments to the .ll file"));
+
+namespace {
+
+class CommentWriter : public AssemblyAnnotationWriter {
+public:
+ void emitFunctionAnnot(const Function *F,
+ formatted_raw_ostream &OS) {
+ OS << "; [#uses=" << F->getNumUses() << ']'; // Output # uses
+ OS << '\n';
+ }
+ void printInfoComment(const Value &V, formatted_raw_ostream &OS) {
+ if (V.getType()->isVoidTy()) return;
+
+ OS.PadToColumn(50);
+ OS << "; [#uses=" << V.getNumUses() << ']'; // Output # uses
+ }
+};
+
+} // end anon namespace
- std::auto_ptr<Module> M;
-
- if (MemoryBuffer *Buffer
- = MemoryBuffer::getFileOrSTDIN(InputFilename, &ErrorMessage)) {
- M.reset(ParseBitcodeFile(Buffer, &ErrorMessage));
- delete Buffer;
- }
+int main(int argc, char **argv) {
+ // Print a stack trace if we signal out.
+ sys::PrintStackTraceOnErrorSignal();
+ PrettyStackTraceProgram X(argc, argv);
+
+ LLVMContext &Context = getGlobalContext();
+ llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
+
+
+ cl::ParseCommandLineOptions(argc, argv, "llvm .bc -> .ll disassembler\n");
+
+ std::string ErrorMessage;
+ std::auto_ptr<Module> M;
+
+ if (MemoryBuffer *Buffer
+ = MemoryBuffer::getFileOrSTDIN(InputFilename, &ErrorMessage)) {
+ M.reset(ParseBitcodeFile(Buffer, Context, &ErrorMessage));
+ delete Buffer;
+ }
- if (M.get() == 0) {
- cerr << argv[0] << ": ";
- if (ErrorMessage.size())
- cerr << ErrorMessage << "\n";
- else
- cerr << "bitcode didn't read correctly.\n";
- return 1;
- }
-
- if (DontPrint) {
- // Just use stdout. We won't actually print anything on it.
- } else 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!
- cerr << argv[0] << ": error opening '" << OutputFilename
- << "': file exists! Sending to standard output.\n";
- } else {
- Out = new std::ofstream(OutputFilename.c_str());
- }
- }
+ if (M.get() == 0) {
+ errs() << argv[0] << ": ";
+ if (ErrorMessage.size())
+ errs() << ErrorMessage << "\n";
+ else
+ errs() << "bitcode didn't read correctly.\n";
+ return 1;
+ }
+
+ // Just use stdout. We won't actually print anything on it.
+ if (DontPrint)
+ OutputFilename = "-";
+
+ if (OutputFilename.empty()) { // Unspecified output, infer it.
+ if (InputFilename == "-") {
+ OutputFilename = "-";
} 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)+".ll";
- } else {
- OutputFilename = IFN+".ll";
- }
-
- if (!Force && std::ifstream(OutputFilename.c_str())) {
- // If force is not specified, make sure not to overwrite a file!
- 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
- sys::RemoveFileOnSignal(sys::Path(OutputFilename));
- }
- }
+ const std::string &IFN = InputFilename;
+ int Len = IFN.length();
+ // If the source ends in .bc, strip it off.
+ if (IFN[Len-3] == '.' && IFN[Len-2] == 'b' && IFN[Len-1] == 'c')
+ OutputFilename = std::string(IFN.begin(), IFN.end()-3)+".ll";
+ else
+ OutputFilename = IFN+".ll";
}
+ }
- if (!Out->good()) {
- cerr << argv[0] << ": error opening " << OutputFilename
- << ": sending to stdout instead!\n";
- Out = &std::cout;
- }
+ std::string ErrorInfo;
+ OwningPtr<tool_output_file>
+ Out(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
+ raw_fd_ostream::F_Binary));
+ if (!ErrorInfo.empty()) {
+ errs() << ErrorInfo << '\n';
+ return 1;
+ }
- // All that llvm-dis does is write the assembly to a file.
- if (!DontPrint) {
- PassManager Passes;
- OStream L(*Out);
- Passes.add(new PrintModulePass(&L));
- Passes.run(*M.get());
- }
+ OwningPtr<AssemblyAnnotationWriter> Annotator;
+ if (ShowAnnotations)
+ Annotator.reset(new CommentWriter());
+
+ // All that llvm-dis does is write the assembly to a file.
+ if (!DontPrint)
+ M->print(Out->os(), Annotator.get());
- if (Out != &std::cout) {
- ((std::ofstream*)Out)->close();
- delete Out;
- }
- return 0;
- } catch (const std::string& msg) {
- cerr << argv[0] << ": " << msg << "\n";
- } catch (...) {
- cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
- }
+ // Declare success.
+ Out->keep();
- return 1;
+ return 0;
}
projects / oota-llvm.git / blobdiff