1 files changed, 8 insertions, 1 deletions
diff --git a/include/llvm/Support/SHA1.h b/include/llvm/Support/SHA1.h
index 8347a713f272..1fc60a878f94 100644
--- a/include/llvm/Support/SHA1.h
+++ b/include/llvm/Support/SHA1.h
@@ -18,6 +18,7 @@
 
 #include "llvm/ADT/ArrayRef.h"
 
+#include <array>
 #include <cstdint>
 
 namespace llvm {
@@ -53,6 +54,9 @@ public:
   /// made into update.
   StringRef result();
 
+  /// Returns a raw 160-bit SHA1 hash for the given data.
+  static std::array<uint8_t, 20> hash(ArrayRef<uint8_t> Data);
+
 private:
   /// Define some constants.
   /// "static constexpr" would be cleaner but MSVC does not support it yet.
@@ -61,7 +65,10 @@ private:
 
   // Internal State
   struct {
-    uint32_t Buffer[BLOCK_LENGTH / 4];
+    union {
+      uint8_t C[BLOCK_LENGTH];
+      uint32_t L[BLOCK_LENGTH / 4];
+    } Buffer;
     uint32_t State[HASH_LENGTH / 4];
     uint32_t ByteCount;
     uint8_t BufferOffset;