uselistorder: Pull the bit through WriteToBitcodFile()

[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 70c95080e902792dad9055a4010f1cf0097c61c6..1d48596a24f37d2cc547853b47e1e4bdf61ffe5d 100644 (file)
--- a/tools/llvm-as/llvm-as.cpp
+++ b/tools/llvm-as/llvm-as.cpp
@@ -19,8 +19,10 @@
 #include "llvm/AsmParser/Parser.h"
 #include "llvm/Bitcode/ReaderWriter.h"
 #include "llvm/IR/Module.h"
+#include "llvm/IR/UseListOrder.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"
@@ -68,16 +70,16 @@ static void WriteOutputFile(const Module *M) {
     }
   }
 
-  std::string ErrorInfo;
+  std::error_code EC;
   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';
+      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());
+    WriteBitcodeToFile(M, Out->os(), shouldPreserveBitcodeUseListOrder());
 
   // Declare success.
   Out->keep();
@@ -89,11 +91,16 @@ int main(int argc, char **argv) {
   PrettyStackTraceProgram X(argc, argv);
   LLVMContext &Context = getGlobalContext();
   llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
+
+  // Turn on -preserve-bc-uselistorder by default, but let the command-line
+  // override it.
+  setPreserveBitcodeUseListOrder(true);
+
   cl::ParseCommandLineOptions(argc, argv, "llvm .ll -> .bc assembler\n");
 
   // Parse the file now...
   SMDiagnostic Err;
-  std::unique_ptr<Module> M(ParseAssemblyFile(InputFilename, Err, Context));
+  std::unique_ptr<Module> M = parseAssemblyFile(InputFilename, Err, Context);
   if (!M.get()) {
     Err.print(argv[0], errs());
     return 1;