//===--- llvm-as.cpp - The low-level LLVM assembler -----------------------===//
-//
+//
// 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.
+//
//===----------------------------------------------------------------------===//
//
// This utility may be invoked in the following manner:
// llvm-as --help - Output information about command line switches
-// llvm-as [options] - Read LLVM asm from stdin, write bytecode to stdout
-// llvm-as [options] x.ll - Read LLVM asm from the x.ll file, write bytecode
+// llvm-as [options] - Read LLVM asm from stdin, write bitcode to stdout
+// llvm-as [options] x.ll - Read LLVM asm from the x.ll file, write bitcode
// to the x.bc file.
-//
-//===------------------------------------------------------------------------===
+//
+//===----------------------------------------------------------------------===//
-#include "llvm/Module.h"
-#include "llvm/Assembly/Parser.h"
-#include "llvm/Bytecode/Writer.h"
-#include "llvm/Analysis/Verifier.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/AsmParser/Parser.h"
+#include "llvm/Bitcode/ReaderWriter.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/Verifier.h"
#include "llvm/Support/CommandLine.h"
-#include "llvm/System/Signals.h"
-#include <fstream>
-#include <iostream>
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/SystemUtils.h"
+#include "llvm/Support/ToolOutputFile.h"
#include <memory>
-
using namespace llvm;
-static cl::opt<std::string>
+static cl::opt<std::string>
InputFilename(cl::Positional, cl::desc("<input .llvm file>"), cl::init("-"));
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>
-DumpAsm("d", cl::desc("Print assembly as parsed"), cl::Hidden);
+DisableOutput("disable-output", cl::desc("Disable output"), cl::init(false));
-static cl::opt<bool> NoCompress("no-compress", cl::init(false),
- cl::desc("Don't ompress the generated bytecode"));
+static cl::opt<bool>
+DumpAsm("d", cl::desc("Print assembly as parsed"), cl::Hidden);
static cl::opt<bool>
DisableVerify("disable-verify", cl::Hidden,
cl::desc("Do not run verifier on input LLVM (dangerous!)"));
-int main(int argc, char **argv) {
- cl::ParseCommandLineOptions(argc, argv, " llvm .ll -> .bc assembler\n");
- sys::PrintStackTraceOnErrorSignal();
-
- std::ostream *Out = 0;
- try {
- // Parse the file now...
- std::auto_ptr<Module> M(ParseAssemblyFile(InputFilename));
- if (M.get() == 0) {
- std::cerr << argv[0] << ": assembly didn't read correctly.\n";
- return 1;
- }
-
- try {
- if (!DisableVerify)
- verifyModule(*M.get(), ThrowExceptionAction);
- } catch (const std::string &Err) {
- std::cerr << argv[0]
- << ": assembly parsed, but does not verify as correct!\n";
- std::cerr << Err;
- return 1;
- }
-
- if (DumpAsm) std::cerr << "Here's the assembly:\n" << M.get();
-
- 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!\n"
- << "Use -f command line argument to force output\n";
- return 1;
- }
- Out = new std::ofstream(OutputFilename.c_str(), std::ios_base::out |
- std::ios_base::trunc | std::ios_base::binary);
- } else { // Specified stdout
- Out = &std::cout;
- }
+static void WriteOutputFile(const Module *M) {
+ // Infer the output filename if needed.
+ if (OutputFilename.empty()) {
+ if (InputFilename == "-") {
+ OutputFilename = "-";
} else {
- if (InputFilename == "-") {
- OutputFilename = "-";
- Out = &std::cout;
+ std::string IFN = InputFilename;
+ int Len = IFN.length();
+ if (IFN[Len-3] == '.' && IFN[Len-2] == 'l' && IFN[Len-1] == 'l') {
+ // Source ends in .ll
+ OutputFilename = std::string(IFN.begin(), IFN.end()-3);
} else {
- std::string IFN = InputFilename;
- int Len = IFN.length();
- if (IFN[Len-3] == '.' && IFN[Len-2] == 'l' && IFN[Len-1] == 'l') {
- // Source ends in .ll
- OutputFilename = std::string(IFN.begin(), IFN.end()-3);
- } else {
- OutputFilename = IFN; // Append a .bc to it
- }
- OutputFilename += ".bc";
-
- 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!\n"
- << "Use -f command line argument to force output\n";
- return 1;
- }
-
- Out = new std::ofstream(OutputFilename.c_str(), std::ios_base::out |
- std::ios_base::trunc | std::ios_base::binary);
- // Make sure that the Out file gets unlinked from the disk if we get a
- // SIGINT
- sys::RemoveFileOnSignal(OutputFilename);
+ OutputFilename = IFN; // Append a .bc to it
}
+ OutputFilename += ".bc";
}
-
- if (!Out->good()) {
- std::cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
+ }
+
+ std::string ErrorInfo;
+ std::unique_ptr<tool_output_file> Out(
+ new tool_output_file(OutputFilename.c_str(), ErrorInfo, sys::fs::F_None));
+ if (!ErrorInfo.empty()) {
+ errs() << ErrorInfo << '\n';
+ exit(1);
+ }
+
+ if (Force || !CheckBitcodeOutputToConsole(Out->os(), true))
+ WriteBitcodeToFile(M, Out->os());
+
+ // Declare success.
+ Out->keep();
+}
+
+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 .ll -> .bc assembler\n");
+
+ // Parse the file now...
+ SMDiagnostic Err;
+ std::unique_ptr<Module> M = parseAssemblyFile(InputFilename, Err, Context);
+ if (!M.get()) {
+ Err.print(argv[0], errs());
+ return 1;
+ }
+
+ if (!DisableVerify) {
+ std::string ErrorStr;
+ raw_string_ostream OS(ErrorStr);
+ if (verifyModule(*M.get(), &OS)) {
+ errs() << argv[0]
+ << ": assembly parsed, but does not verify as correct!\n";
+ errs() << OS.str();
return 1;
}
-
- WriteBytecodeToFile(M.get(), *Out, !NoCompress);
- } catch (const ParseException &E) {
- std::cerr << argv[0] << ": " << E.getMessage() << "\n";
- return 1;
}
- if (Out != &std::cout) delete Out;
+ if (DumpAsm) errs() << "Here's the assembly:\n" << *M.get();
+
+ if (!DisableOutput)
+ WriteOutputFile(M.get());
+
return 0;
}
-
projects / oota-llvm.git / blobdiff