1 files changed, 16 insertions, 2 deletions
diff --git a/lib/Support/BinaryStreamReader.cpp b/lib/Support/BinaryStreamReader.cpp
index 702d98770e052..5c277448a7655 100644
--- a/lib/Support/BinaryStreamReader.cpp
+++ b/lib/Support/BinaryStreamReader.cpp
@@ -13,9 +13,18 @@
 #include "llvm/Support/BinaryStreamRef.h"
 
 using namespace llvm;
+using endianness = llvm::support::endianness;
 
-BinaryStreamReader::BinaryStreamReader(BinaryStreamRef S)
-    : Stream(S), Offset(0) {}
+BinaryStreamReader::BinaryStreamReader(BinaryStreamRef Ref) : Stream(Ref) {}
+
+BinaryStreamReader::BinaryStreamReader(BinaryStream &Stream) : Stream(Stream) {}
+
+BinaryStreamReader::BinaryStreamReader(ArrayRef<uint8_t> Data,
+                                       endianness Endian)
+    : Stream(Data, Endian) {}
+
+BinaryStreamReader::BinaryStreamReader(StringRef Data, endianness Endian)
+    : Stream(Data, Endian) {}
 
 Error BinaryStreamReader::readLongestContiguousChunk(
     ArrayRef<uint8_t> &Buffer) {
@@ -86,6 +95,11 @@ Error BinaryStreamReader::skip(uint32_t Amount) {
   return Error::success();
 }
 
+Error BinaryStreamReader::padToAlignment(uint32_t Align) {
+  uint32_t NewOffset = alignTo(Offset, Align);
+  return skip(NewOffset - Offset);
+}
+
 uint8_t BinaryStreamReader::peek() const {
   ArrayRef<uint8_t> Buffer;
   auto EC = Stream.readBytes(Offset, 1, Buffer);