1 files changed, 0 insertions, 69 deletions
diff --git a/contrib/llvm/lib/XRay/FileHeaderReader.cpp b/contrib/llvm/lib/XRay/FileHeaderReader.cpp
deleted file mode 100644
index 3fb021906a6f..000000000000
--- a/contrib/llvm/lib/XRay/FileHeaderReader.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//===- FileHeaderReader.cpp - XRay File Header Reader  --------------------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-#include "llvm/XRay/FileHeaderReader.h"
-
-namespace llvm {
-namespace xray {
-
-// Populates the FileHeader reference by reading the first 32 bytes of the file.
-Expected<XRayFileHeader> readBinaryFormatHeader(DataExtractor &HeaderExtractor,
-                                                uint32_t &OffsetPtr) {
-  // FIXME: Maybe deduce whether the data is little or big-endian using some
-  // magic bytes in the beginning of the file?
-
-  // First 32 bytes of the file will always be the header. We assume a certain
-  // format here:
-  //
-  //   (2)   uint16 : version
-  //   (2)   uint16 : type
-  //   (4)   uint32 : bitfield
-  //   (8)   uint64 : cycle frequency
-  //   (16)  -      : padding
-  XRayFileHeader FileHeader;
-  auto PreReadOffset = OffsetPtr;
-  FileHeader.Version = HeaderExtractor.getU16(&OffsetPtr);
-  if (OffsetPtr == PreReadOffset)
-    return createStringError(
-        std::make_error_code(std::errc::invalid_argument),
-        "Failed reading version from file header at offset %d.", OffsetPtr);
-
-  PreReadOffset = OffsetPtr;
-  FileHeader.Type = HeaderExtractor.getU16(&OffsetPtr);
-  if (OffsetPtr == PreReadOffset)
-    return createStringError(
-        std::make_error_code(std::errc::invalid_argument),
-        "Failed reading file type from file header at offset %d.", OffsetPtr);
-
-  PreReadOffset = OffsetPtr;
-  uint32_t Bitfield = HeaderExtractor.getU32(&OffsetPtr);
-  if (OffsetPtr == PreReadOffset)
-    return createStringError(
-        std::make_error_code(std::errc::invalid_argument),
-        "Failed reading flag bits from file header at offset %d.", OffsetPtr);
-
-  FileHeader.ConstantTSC = Bitfield & 1uL;
-  FileHeader.NonstopTSC = Bitfield & 1uL << 1;
-  PreReadOffset = OffsetPtr;
-  FileHeader.CycleFrequency = HeaderExtractor.getU64(&OffsetPtr);
-  if (OffsetPtr == PreReadOffset)
-    return createStringError(
-        std::make_error_code(std::errc::invalid_argument),
-        "Failed reading cycle frequency from file header at offset %d.",
-        OffsetPtr);
-
-  std::memcpy(&FileHeader.FreeFormData,
-              HeaderExtractor.getData().bytes_begin() + OffsetPtr, 16);
-
-  // Manually advance the offset pointer 16 bytes, after getting a raw memcpy
-  // from the underlying data.
-  OffsetPtr += 16;
-  return std::move(FileHeader);
-}
-
-} // namespace xray
-} // namespace llvm