Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/lib/Support/circular_raw_ostream.cpp

@@ -1,45 +0,0 @@
-//===- circular_raw_ostream.cpp - Implement circular_raw_ostream ----------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This implements support for circular buffered streams.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/circular_raw_ostream.h"
-#include <algorithm>
-using namespace llvm;
-
-void circular_raw_ostream::write_impl(const char *Ptr, size_t Size) {
-  if (BufferSize == 0) {
-    TheStream->write(Ptr, Size);
-    return;
-  }
-
-  // Write into the buffer, wrapping if necessary.
-  while (Size != 0) {
-    unsigned Bytes =
-      std::min(unsigned(Size), unsigned(BufferSize - (Cur - BufferArray)));
-    memcpy(Cur, Ptr, Bytes);
-    Size -= Bytes;
-    Cur += Bytes;
-    if (Cur == BufferArray + BufferSize) {
-      // Reset the output pointer to the start of the buffer.
-      Cur = BufferArray;
-      Filled = true;
-    }
-  }    
-}
-
-void circular_raw_ostream::flushBufferWithBanner() {
-  if (BufferSize != 0) {
-    // Write out the buffer
-    TheStream->write(Banner, std::strlen(Banner));
-    flushBuffer();
-  }
-}