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diff --git a/clang-r353983e/include/llvm/Support/SystemUtils.h b/clang-r353983e/include/llvm/Support/SystemUtils.h
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+++ b/clang-r353983e/include/llvm/Support/SystemUtils.h
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+//===- SystemUtils.h - Utilities to do low-level system stuff ---*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains functions used to do a variety of low-level, often
+// system-specific, tasks.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_SYSTEMUTILS_H
+#define LLVM_SUPPORT_SYSTEMUTILS_H
+
+namespace llvm {
+  class raw_ostream;
+
+/// Determine if the raw_ostream provided is connected to a terminal. If so,
+/// generate a warning message to errs() advising against display of bitcode
+/// and return true. Otherwise just return false.
+/// Check for output written to a console
+bool CheckBitcodeOutputToConsole(
+  raw_ostream &stream_to_check, ///< The stream to be checked
+  bool print_warning = true     ///< Control whether warnings are printed
+);
+
+} // End llvm namespace
+
+#endif