From 148779df305667b6942fee7e758fdf81a6498f38 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Wed, 3 May 2017 20:26:11 +0000
Subject: Vendor import of llvm trunk r302069:
 https://llvm.org/svn/llvm-project/llvm/trunk@302069

---
 lib/Support/BinaryStreamReader.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'lib/Support/BinaryStreamReader.cpp')

diff --git a/lib/Support/BinaryStreamReader.cpp b/lib/Support/BinaryStreamReader.cpp
index c7a2e0ddb179..702d98770e05 100644
--- a/lib/Support/BinaryStreamReader.cpp
+++ b/lib/Support/BinaryStreamReader.cpp
@@ -93,3 +93,16 @@ uint8_t BinaryStreamReader::peek() const {
   llvm::consumeError(std::move(EC));
   return Buffer[0];
 }
+
+std::pair<BinaryStreamReader, BinaryStreamReader>
+BinaryStreamReader::split(uint32_t Off) const {
+  assert(getLength() >= Off);
+
+  BinaryStreamRef First = Stream.drop_front(Offset);
+
+  BinaryStreamRef Second = First.drop_front(Off);
+  First = First.keep_front(Off);
+  BinaryStreamReader W1{First};
+  BinaryStreamReader W2{Second};
+  return std::make_pair(W1, W2);
+}
\ No newline at end of file
-- 
cgit v1.2.3