eliminate the std::ostream forms of the bitcode writing APIs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79840 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Bitcode/Reader/Deserialize.cpp

@@ -12,11 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Bitcode/Deserialize.h"
-
-#ifdef DEBUG_BACKPATCH
-#include "llvm/Support/Streams.h"
-#endif
-
+#include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
 Deserializer::Deserializer(BitstreamReader& stream)
@@ -357,7 +353,7 @@ void Deserializer::RegisterPtr(const SerializedPtrID& PtrId,
   assert (!HasFinalPtr(E) && "Pointer already registered.");
 
 #ifdef DEBUG_BACKPATCH
-  llvm::cerr << "RegisterPtr: " << PtrId << " => " << Ptr << "\n";
+  errs() << "RegisterPtr: " << PtrId << " => " << Ptr << "\n";
 #endif 
   
   SetPtr(E,Ptr);
@@ -377,8 +373,8 @@ void Deserializer::ReadUIntPtr(uintptr_t& PtrRef,
     PtrRef = GetFinalPtr(E);
 
 #ifdef DEBUG_BACKPATCH
-    llvm::cerr << "ReadUintPtr: " << PtrId
-               << " <-- " <<  (void*) GetFinalPtr(E) << '\n';
+    errs() << "ReadUintPtr: " << PtrId
+           << " <-- " <<  (void*) GetFinalPtr(E) << '\n';
 #endif    
   }
   else {
@@ -386,7 +382,7 @@ void Deserializer::ReadUIntPtr(uintptr_t& PtrRef,
             "Client forbids backpatching for this pointer.");
     
 #ifdef DEBUG_BACKPATCH
-    llvm::cerr << "ReadUintPtr: " << PtrId << " (NO PTR YET)\n";
+    errs() << "ReadUintPtr: " << PtrId << " (NO PTR YET)\n";
 #endif
     
     // Register backpatch.  Check the freelist for a BPNode.

lib/Bitcode/Writer/BitWriter.cpp

@@ -9,43 +9,31 @@
 
 #include "llvm-c/BitWriter.h"
 #include "llvm/Bitcode/ReaderWriter.h"
-#include <fstream>
-
+#include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
 
 /*===-- Operations on modules ---------------------------------------------===*/
 
 int LLVMWriteBitcodeToFile(LLVMModuleRef M, const char *Path) {
-  std::ofstream OS(Path, std::ios_base::out|std::ios::trunc|std::ios::binary);
+  std::string ErrorInfo;
+  raw_fd_ostream OS(Path, ErrorInfo,
+                    raw_fd_ostream::F_Force|raw_fd_ostream::F_Binary);
   
-  if (!OS.fail())
-    WriteBitcodeToFile(unwrap(M), OS);
-  
-  if (OS.fail())
+  if (!ErrorInfo.empty())
     return -1;
   
+  WriteBitcodeToFile(unwrap(M), OS);
   return 0;
 }
 
 #if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR >= 4)
 #include <ext/stdio_filebuf.h>
 
-// FIXME: Control this with configure? Provide some portable abstraction in
-// libSystem? As is, the user will just get a linker error if they use this on 
-// non-GCC. Some C++ stdlibs even have ofstream::ofstream(int fd).
 int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
-  __gnu_cxx::stdio_filebuf<char> Buffer(FileHandle, std::ios_base::out |
-                                                    std::ios::trunc |
-                                                    std::ios::binary);
-  std::ostream OS(&Buffer);
-  
-  if (!OS.fail())
-    WriteBitcodeToFile(unwrap(M), OS);
-  
-  if (OS.fail())
-    return -1;
+  raw_fd_ostream OS(FileHandle, false);
   
+  WriteBitcodeToFile(unwrap(M), OS);
   return 0;
 }
 

lib/Bitcode/Writer/BitcodeWriter.cpp

@@ -26,7 +26,6 @@
 #include "llvm/ValueSymbolTable.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/MathExtras.h"
-#include "llvm/Support/Streams.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/System/Program.h"
 using namespace llvm;
@@ -1466,16 +1465,6 @@ static void EmitDarwinBCTrailer(BitstreamWriter &Stream, unsigned BufferSize) {
 }
 
 
-/// WriteBitcodeToFile - Write the specified module to the specified output
-/// stream.
-void llvm::WriteBitcodeToFile(const Module *M, std::ostream &Out) {
-  raw_os_ostream RawOut(Out);
-  // If writing to stdout, set binary mode.
-  if (llvm::cout == Out)
-    sys::Program::ChangeStdoutToBinary();
-  WriteBitcodeToFile(M, RawOut);
-}
-
 /// WriteBitcodeToFile - Write the specified module to the specified output
 /// stream.
 void llvm::WriteBitcodeToFile(const Module *M, raw_ostream &Out) {

lib/Bitcode/Writer/BitcodeWriterPass.cpp

@@ -17,24 +17,16 @@ using namespace llvm;
 
 namespace {
   class WriteBitcodePass : public ModulePass {
-    // FIXME: Kill off std::ostream
-    std::ostream *Out;
-    raw_ostream *RawOut; // raw_ostream to print on
+    raw_ostream &OS; // raw_ostream to print on
   public:
     static char ID; // Pass identification, replacement for typeid
-    explicit WriteBitcodePass(std::ostream &o)
-      : ModulePass(&ID), Out(&o), RawOut(0) {}
     explicit WriteBitcodePass(raw_ostream &o)
-      : ModulePass(&ID), Out(0), RawOut(&o) {}
+      : ModulePass(&ID), OS(o) {}
     
     const char *getPassName() const { return "Bitcode Writer"; }
     
     bool runOnModule(Module &M) {
-      if (Out) {
-        WriteBitcodeToFile(&M, *Out);
-      } else {
-        WriteBitcodeToFile(&M, *RawOut);
-      }
+      WriteBitcodeToFile(&M, OS);
       return false;
     }
   };
@@ -42,13 +34,6 @@ namespace {
 
 char WriteBitcodePass::ID = 0;
 
-/// CreateBitcodeWriterPass - Create and return a pass that writes the module
-/// to the specified ostream.
-ModulePass *llvm::CreateBitcodeWriterPass(std::ostream &Str) {
-  return new WriteBitcodePass(Str);
-}
-
-
 /// createBitcodeWriterPass - Create and return a pass that writes the module
 /// to the specified ostream.
 ModulePass *llvm::createBitcodeWriterPass(raw_ostream &Str) {