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diff --git a/contrib/llvm-project/llvm/lib/Support/FormattedStream.cpp b/contrib/llvm-project/llvm/lib/Support/FormattedStream.cpp
new file mode 100644
index 000000000000..c0d284350995
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+++ b/contrib/llvm-project/llvm/lib/Support/FormattedStream.cpp
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+//===-- llvm/Support/FormattedStream.cpp - Formatted streams ----*- 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 the implementation of formatted_raw_ostream.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/ConvertUTF.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/Unicode.h"
+#include "llvm/Support/raw_ostream.h"
+#include <algorithm>
+
+using namespace llvm;
+
+/// UpdatePosition - Examine the given char sequence and figure out which
+/// column we end up in after output, and how many line breaks are contained.
+/// This assumes that the input string is well-formed UTF-8, and takes into
+/// account Unicode characters which render as multiple columns wide.
+void formatted_raw_ostream::UpdatePosition(const char *Ptr, size_t Size) {
+  unsigned &Column = Position.first;
+  unsigned &Line = Position.second;
+
+  auto ProcessUTF8CodePoint = [&Line, &Column](StringRef CP) {
+    int Width = sys::unicode::columnWidthUTF8(CP);
+    if (Width != sys::unicode::ErrorNonPrintableCharacter)
+      Column += Width;
+
+    // The only special whitespace characters we care about are single-byte.
+    if (CP.size() > 1)
+      return;
+
+    switch (CP[0]) {
+    case '\n':
+      Line += 1;
+      [[fallthrough]];
+    case '\r':
+      Column = 0;
+      break;
+    case '\t':
+      // Assumes tab stop = 8 characters.
+      Column += (8 - (Column & 0x7)) & 0x7;
+      break;
+    }
+  };
+
+  // If we have a partial UTF-8 sequence from the previous buffer, check that
+  // first.
+  if (PartialUTF8Char.size()) {
+    size_t BytesFromBuffer =
+        getNumBytesForUTF8(PartialUTF8Char[0]) - PartialUTF8Char.size();
+    if (Size < BytesFromBuffer) {
+      // If we still don't have enough bytes for a complete code point, just
+      // append what we have.
+      PartialUTF8Char.append(StringRef(Ptr, Size));
+      return;
+    } else {
+      // The first few bytes from the buffer will complete the code point.
+      // Concatenate them and process their effect on the line and column
+      // numbers.
+      PartialUTF8Char.append(StringRef(Ptr, BytesFromBuffer));
+      ProcessUTF8CodePoint(PartialUTF8Char);
+      PartialUTF8Char.clear();
+      Ptr += BytesFromBuffer;
+      Size -= BytesFromBuffer;
+    }
+  }
+
+  // Now scan the rest of the buffer.
+  unsigned NumBytes;
+  for (const char *End = Ptr + Size; Ptr < End; Ptr += NumBytes) {
+    NumBytes = getNumBytesForUTF8(*Ptr);
+
+    // The buffer might end part way through a UTF-8 code unit sequence for a
+    // Unicode scalar value if it got flushed. If this happens, we can't know
+    // the display width until we see the rest of the code point. Stash the
+    // bytes we do have, so that we can reconstruct the whole code point later,
+    // even if the buffer is being flushed.
+    if ((unsigned)(End - Ptr) < NumBytes) {
+      PartialUTF8Char = StringRef(Ptr, End - Ptr);
+      return;
+    }
+
+    ProcessUTF8CodePoint(StringRef(Ptr, NumBytes));
+  }
+}
+
+/// ComputePosition - Examine the current output and update line and column
+/// counts.
+void formatted_raw_ostream::ComputePosition(const char *Ptr, size_t Size) {
+  // If our previous scan pointer is inside the buffer, assume we already
+  // scanned those bytes. This depends on raw_ostream to not change our buffer
+  // in unexpected ways.
+  if (Ptr <= Scanned && Scanned <= Ptr + Size)
+    // Scan all characters added since our last scan to determine the new
+    // column.
+    UpdatePosition(Scanned, Size - (Scanned - Ptr));
+  else
+    UpdatePosition(Ptr, Size);
+
+  // Update the scanning pointer.
+  Scanned = Ptr + Size;
+}
+
+/// PadToColumn - Align the output to some column number.
+///
+/// \param NewCol - The column to move to.
+///
+formatted_raw_ostream &formatted_raw_ostream::PadToColumn(unsigned NewCol) {
+  // Figure out what's in the buffer and add it to the column count.
+  ComputePosition(getBufferStart(), GetNumBytesInBuffer());
+
+  // Output spaces until we reach the desired column.
+  indent(std::max(int(NewCol - getColumn()), 1));
+  return *this;
+}
+
+void formatted_raw_ostream::write_impl(const char *Ptr, size_t Size) {
+  // Figure out what's in the buffer and add it to the column count.
+  ComputePosition(Ptr, Size);
+
+  // Write the data to the underlying stream (which is unbuffered, so
+  // the data will be immediately written out).
+  TheStream->write(Ptr, Size);
+
+  // Reset the scanning pointer.
+  Scanned = nullptr;
+}
+
+/// fouts() - This returns a reference to a formatted_raw_ostream for
+/// standard output.  Use it like: fouts() << "foo" << "bar";
+formatted_raw_ostream &llvm::fouts() {
+  static formatted_raw_ostream S(outs());
+  return S;
+}
+
+/// ferrs() - This returns a reference to a formatted_raw_ostream for
+/// standard error.  Use it like: ferrs() << "foo" << "bar";
+formatted_raw_ostream &llvm::ferrs() {
+  static formatted_raw_ostream S(errs());
+  return S;
+}
+
+/// fdbgs() - This returns a reference to a formatted_raw_ostream for
+/// the debug stream.  Use it like: fdbgs() << "foo" << "bar";
+formatted_raw_ostream &llvm::fdbgs() {
+  static formatted_raw_ostream S(dbgs());
+  return S;
+}