1 files changed, 29 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/scudo/standalone/crc32_hw.cpp b/contrib/llvm-project/compiler-rt/lib/scudo/standalone/crc32_hw.cpp
new file mode 100644
index 000000000000..910cf9460313
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/scudo/standalone/crc32_hw.cpp
@@ -0,0 +1,29 @@
+//===-- crc32_hw.cpp --------------------------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "checksum.h"
+
+namespace scudo {
+
+#if defined(__CRC32__) || defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32)
+u32 computeHardwareCRC32(u32 Crc, uptr Data) {
+  return static_cast<u32>(CRC32_INTRINSIC(Crc, Data));
+}
+#endif // defined(__CRC32__) || defined(__SSE4_2__) ||
+       // defined(__ARM_FEATURE_CRC32)
+
+#if defined(__loongarch__)
+u32 computeHardwareCRC32(u32 Crc, uptr Data) {
+  // The LoongArch CRC intrinsics have the two input arguments swapped, and
+  // expect them to be signed.
+  return static_cast<u32>(
+      CRC32_INTRINSIC(static_cast<long>(Data), static_cast<int>(Crc)));
+}
+#endif // defined(__loongarch__)
+
+} // namespace scudo