diff options
Diffstat (limited to 'contrib/compiler-rt/lib/scudo/scudo_crc32.cpp')
| -rw-r--r-- | contrib/compiler-rt/lib/scudo/scudo_crc32.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/contrib/compiler-rt/lib/scudo/scudo_crc32.cpp b/contrib/compiler-rt/lib/scudo/scudo_crc32.cpp new file mode 100644 index 000000000000..a267dc4e3fb8 --- /dev/null +++ b/contrib/compiler-rt/lib/scudo/scudo_crc32.cpp @@ -0,0 +1,25 @@ +//===-- scudo_crc32.cpp -----------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +/// +/// CRC32 function leveraging hardware specific instructions. This has to be +/// kept separated to restrict the use of compiler specific flags to this file. +/// +//===----------------------------------------------------------------------===// + +#include "scudo_crc32.h" + +namespace __scudo { + +#if defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32) +u32 computeHardwareCRC32(u32 Crc, uptr Data) { + return CRC32_INTRINSIC(Crc, Data); +} +#endif // defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32) + +} // namespace __scudo |