1 files changed, 44 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Utility/Checksum.cpp b/contrib/llvm-project/lldb/source/Utility/Checksum.cpp
new file mode 100644
index 000000000000..8943b4e12852
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Utility/Checksum.cpp
@@ -0,0 +1,44 @@
+//===-- Checksum.cpp ------------------------------------------------------===//
+//
+// 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 "lldb/Utility/Checksum.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SmallString.h"
+
+using namespace lldb_private;
+
+Checksum::Checksum(llvm::MD5::MD5Result md5) { SetMD5(md5); }
+
+Checksum::Checksum(const Checksum &checksum) { SetMD5(checksum.m_checksum); }
+
+Checksum &Checksum::operator=(const Checksum &checksum) {
+  SetMD5(checksum.m_checksum);
+  return *this;
+}
+
+void Checksum::SetMD5(llvm::MD5::MD5Result md5) {
+  const constexpr size_t md5_length = 16;
+  std::uninitialized_copy_n(md5.begin(), md5_length, m_checksum.begin());
+}
+
+Checksum::operator bool() const { return !llvm::equal(m_checksum, g_sentinel); }
+
+bool Checksum::operator==(const Checksum &checksum) const {
+  return llvm::equal(m_checksum, checksum.m_checksum);
+}
+
+bool Checksum::operator!=(const Checksum &checksum) const {
+  return !(*this == checksum);
+}
+
+std::string Checksum::digest() const {
+  return std::string(m_checksum.digest());
+}
+
+llvm::MD5::MD5Result Checksum::g_sentinel = {
+    {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};