Use range-based for loops. NFC

[oota-llvm.git] / tools / llvm-as / llvm-as.cpp

diff --git a/tools/llvm-as/llvm-as.cpp b/tools/llvm-as/llvm-as.cpp
index 942dbebfa17015bcec69cc006cb92c574e13330b..d4e4d8d71070a4557400107810432600d249a5fc 100644 (file)
--- a/tools/llvm-as/llvm-as.cpp
+++ b/tools/llvm-as/llvm-as.cpp
@@ -15,18 +15,19 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
-#include "llvm/Assembly/Parser.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/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/raw_ostream.h"
-#include "llvm/System/Signals.h"
+#include "llvm/Support/ToolOutputFile.h"
 #include <memory>
 using namespace llvm;
 
@@ -38,11 +39,15 @@ OutputFilename("o", cl::desc("Override output filename"),
                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>
 DisableOutput("disable-output", cl::desc("Disable output"), cl::init(false));
 
+static cl::opt<bool>
+EmitFunctionSummary("function-summary", cl::desc("Emit function summary index"),
+                    cl::init(false));
+
 static cl::opt<bool>
 DumpAsm("d", cl::desc("Print assembly as parsed"), cl::Hidden);
 
@@ -50,6 +55,39 @@ static cl::opt<bool>
 DisableVerify("disable-verify", cl::Hidden,
               cl::desc("Do not run verifier on input LLVM (dangerous!)"));
 
+static cl::opt<bool> PreserveBitcodeUseListOrder(
+    "preserve-bc-uselistorder",
+    cl::desc("Preserve use-list order when writing LLVM bitcode."),
+    cl::init(true), cl::Hidden);
+
+static void WriteOutputFile(const Module *M) {
+  // Infer the output filename if needed.
+  if (OutputFilename.empty()) {
+    if (InputFilename == "-") {
+      OutputFilename = "-";
+    } else {
+      StringRef IFN = InputFilename;
+      OutputFilename = (IFN.endswith(".ll") ? IFN.drop_back(3) : IFN).str();
+      OutputFilename += ".bc";
+    }
+  }
+
+  std::error_code EC;
+  std::unique_ptr<tool_output_file> Out(
+      new tool_output_file(OutputFilename, EC, sys::fs::F_None));
+  if (EC) {
+    errs() << EC.message() << '\n';
+    exit(1);
+  }
+
+  if (Force || !CheckBitcodeOutputToConsole(Out->os(), true))
+    WriteBitcodeToFile(M, Out->os(), PreserveBitcodeUseListOrder,
+                       EmitFunctionSummary);
+
+  // Declare success.
+  Out->keep();
+}
+
 int main(int argc, char **argv) {
   // Print a stack trace if we signal out.
   sys::PrintStackTraceOnErrorSignal();
@@ -58,88 +96,29 @@ int main(int argc, char **argv) {
   llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
   cl::ParseCommandLineOptions(argc, argv, "llvm .ll -> .bc assembler\n");
 
-  int exitCode = 0;
-  raw_ostream *Out = 0;
-  try {
-    // Parse the file now...
-    SMDiagnostic Err;
-    std::auto_ptr<Module> M(ParseAssemblyFile(InputFilename, Err, Context));
-    if (M.get() == 0) {
-      Err.Print(argv[0], errs());
-      return 1;
-    }
+  // 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 Err;
-      if (verifyModule(*M.get(), ReturnStatusAction, &Err)) {
-        errs() << argv[0]
-               << ": assembly parsed, but does not verify as correct!\n";
-        errs() << Err;
-        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;
     }
+  }
 
-    if (DumpAsm) errs() << "Here's the assembly:\n" << *M.get();
-
-    if (OutputFilename != "") {   // Specified an output filename?
-      if (OutputFilename != "-") {  // Not stdout?
-        std::string ErrorInfo;
-        Out = new raw_fd_ostream(OutputFilename.c_str(), /*Binary=*/true,
-                                 Force, ErrorInfo);
-        if (!ErrorInfo.empty()) {
-          errs() << ErrorInfo << '\n';
-          if (!Force)
-            errs() << "Use -f command line argument to force output\n";
-          delete Out;
-          return 1;
-        }
-      } else {                      // Specified stdout
-        // FIXME: outs() is not binary!
-        Out = &outs();
-      }
-    } else {
-      if (InputFilename == "-") {
-        OutputFilename = "-";
-        Out = &outs();
-      } 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";
-
-        std::string ErrorInfo;
-        Out = new raw_fd_ostream(OutputFilename.c_str(), /*Binary=*/true,
-                                 Force, ErrorInfo);
-        if (!ErrorInfo.empty()) {
-          errs() << ErrorInfo << '\n';
-          if (!Force)
-            errs() << "Use -f command line argument to force output\n";
-          delete Out;
-          return 1;
-        }
-        // Make sure that the Out file gets unlinked from the disk if we get a
-        // SIGINT
-        sys::RemoveFileOnSignal(sys::Path(OutputFilename));
-      }
-    }
+  if (DumpAsm) errs() << "Here's the assembly:\n" << *M.get();
 
-    if (!DisableOutput)
-      if (Force || !CheckBitcodeOutputToConsole(Out,true))
-        WriteBitcodeToFile(M.get(), *Out);
-  } catch (const std::string& msg) {
-    errs() << argv[0] << ": " << msg << "\n";
-    exitCode = 1;
-  } catch (...) {
-    errs() << argv[0] << ": Unexpected unknown exception occurred.\n";
-    exitCode = 1;
-  }
+  if (!DisableOutput)
+    WriteOutputFile(M.get());
 
-  if (Out != &outs()) delete Out;
-  return exitCode;
+  return 0;
 }
-