Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/lib/Bitcode/Writer/BitWriter.cpp

@@ -0,0 +1,50 @@
+//===-- BitWriter.cpp -----------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm-c/BitWriter.h"
+#include "llvm/Bitcode/BitcodeWriter.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
+
+
+/*===-- Operations on modules ---------------------------------------------===*/
+
+int LLVMWriteBitcodeToFile(LLVMModuleRef M, const char *Path) {
+  std::error_code EC;
+  raw_fd_ostream OS(Path, EC, sys::fs::F_None);
+
+  if (EC)
+    return -1;
+
+  WriteBitcodeToFile(unwrap(M), OS);
+  return 0;
+}
+
+int LLVMWriteBitcodeToFD(LLVMModuleRef M, int FD, int ShouldClose,
+                         int Unbuffered) {
+  raw_fd_ostream OS(FD, ShouldClose, Unbuffered);
+
+  WriteBitcodeToFile(unwrap(M), OS);
+  return 0;
+}
+
+int LLVMWriteBitcodeToFileHandle(LLVMModuleRef M, int FileHandle) {
+  return LLVMWriteBitcodeToFD(M, FileHandle, true, false);
+}
+
+LLVMMemoryBufferRef LLVMWriteBitcodeToMemoryBuffer(LLVMModuleRef M) {
+  std::string Data;
+  raw_string_ostream OS(Data);
+
+  WriteBitcodeToFile(unwrap(M), OS);
+  return wrap(MemoryBuffer::getMemBufferCopy(OS.str()).release());
+}