1 files changed, 22 insertions, 1 deletions
diff --git a/contrib/llvm-project/llvm/include/llvm/Support/Compression.h b/contrib/llvm-project/llvm/include/llvm/Support/Compression.h
index c99f811459ab..8500396d88a0 100644
--- a/contrib/llvm-project/llvm/include/llvm/Support/Compression.h
+++ b/contrib/llvm-project/llvm/include/llvm/Support/Compression.h
@@ -19,7 +19,6 @@
 namespace llvm {
 template <typename T> class SmallVectorImpl;
 class Error;
-class StringRef;
 
 namespace compression {
 namespace zlib {
@@ -44,6 +43,28 @@ Error uncompress(ArrayRef<uint8_t> Input,
 
 } // End of namespace zlib
 
+namespace zstd {
+
+constexpr int NoCompression = -5;
+constexpr int BestSpeedCompression = 1;
+constexpr int DefaultCompression = 5;
+constexpr int BestSizeCompression = 12;
+
+bool isAvailable();
+
+void compress(ArrayRef<uint8_t> Input,
+              SmallVectorImpl<uint8_t> &CompressedBuffer,
+              int Level = DefaultCompression);
+
+Error uncompress(ArrayRef<uint8_t> Input, uint8_t *UncompressedBuffer,
+                 size_t &UncompressedSize);
+
+Error uncompress(ArrayRef<uint8_t> Input,
+                 SmallVectorImpl<uint8_t> &UncompressedBuffer,
+                 size_t UncompressedSize);
+
+} // End of namespace zstd
+
 } // End of namespace compression
 
 } // End of namespace llvm