X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=tools%2Fllvm-as%2Fllvm-as.cpp;h=d9fa1fa7f40a721c15926da5622c01c88110183c;hb=4a307ecce68f90e0eebf1ded52b947816cdc2304;hp=1dbcd1d1b839a5eddaea71479278b44b599070ec;hpb=6d1727cf143ab033e76f39b0854aced7ba144701;p=oota-llvm.git

diff --git a/tools/llvm-as/llvm-as.cpp b/tools/llvm-as/llvm-as.cpp
index 1dbcd1d1b83..d9fa1fa7f40 100644
--- a/tools/llvm-as/llvm-as.cpp
+++ b/tools/llvm-as/llvm-as.cpp
@@ -2,30 +2,31 @@
 //
 //                     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/Bitcode/ReaderWriter.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/Streams.h"
 #include "llvm/Support/SystemUtils.h"
 #include "llvm/System/Signals.h"
 #include <fstream>
 #include <iostream>
 #include <memory>
-
 using namespace llvm;
 
 static cl::opt<std::string>
@@ -39,49 +40,50 @@ static cl::opt<bool>
 Force("f", cl::desc("Overwrite output files"));
 
 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("disable-compression", cl::init(false),
-           cl::desc("Don't compress the generated bytecode"));
+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");
+  llvm_shutdown_obj X;  // Call llvm_shutdown() on exit.
+  cl::ParseCommandLineOptions(argc, argv, "llvm .ll -> .bc assembler\n");
   sys::PrintStackTraceOnErrorSignal();
 
   int exitCode = 0;
   std::ostream *Out = 0;
   try {
     // Parse the file now...
-    std::auto_ptr<Module> M(ParseAssemblyFile(InputFilename));
+    ParseError Err;
+    std::auto_ptr<Module> M(ParseAssemblyFile(InputFilename,&Err));
     if (M.get() == 0) {
-      std::cerr << argv[0] << ": assembly didn't read correctly.\n";
+      cerr << argv[0] << ": " << Err.getMessage() << "\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 (!DisableVerify) {
+      std::string Err;
+      if (verifyModule(*M.get(), ReturnStatusAction, &Err)) {
+        cerr << argv[0]
+             << ": assembly parsed, but does not verify as correct!\n";
+        cerr << Err;
+        return 1;
+      } 
     }
 
-    if (DumpAsm) std::cerr << "Here's the assembly:\n" << *M.get();
+    if (DumpAsm) 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";
+          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::out |
@@ -107,9 +109,9 @@ int main(int argc, char **argv) {
 
         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";
+          cerr << argv[0] << ": error opening '" << OutputFilename
+               << "': file exists!\n"
+               << "Use -f command line argument to force output\n";
           return 1;
         }
 
@@ -122,21 +124,18 @@ int main(int argc, char **argv) {
     }
 
     if (!Out->good()) {
-      std::cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
+      cerr << argv[0] << ": error opening " << OutputFilename << "!\n";
       return 1;
     }
 
-    if (Force || !CheckBytecodeOutputToConsole(Out,true)) {
-      WriteBytecodeToFile(M.get(), *Out, !NoCompress);
-    }
-  } catch (const ParseException &E) {
-    std::cerr << argv[0] << ": " << E.getMessage() << "\n";
-    exitCode = 1;
+    if (!DisableOutput)
+      if (Force || !CheckBitcodeOutputToConsole(Out,true))
+        WriteBitcodeToFile(M.get(), *Out);
   } catch (const std::string& msg) {
-    std::cerr << argv[0] << ": " << msg << "\n";
+    cerr << argv[0] << ": " << msg << "\n";
     exitCode = 1;
   } catch (...) {
-    std::cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
+    cerr << argv[0] << ": Unexpected unknown exception occurred.\n";
     exitCode = 1;
   }