Revert "Remove redundant "std::move"s in return statements"

The build failed with

  error: call to deleted constructor of 'llvm::Error'

errors.

This reverts commit 1c2241a7936bf85aa68aef94bd40c3ba77d8ddf2.

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/Support/MemoryBuffer.cpp b/llvm/lib/Support/MemoryBuffer.cpp
index a7c7c35..e4027ca 100644
--- a/llvm/lib/Support/MemoryBuffer.cpp
+++ b/llvm/lib/Support/MemoryBuffer.cpp
@@ -128,7 +128,7 @@ getMemBufferCopyImpl(StringRef InputData, const Twine &BufferName) {
   if (!Buf)
     return make_error_code(errc::not_enough_memory);
   memcpy(Buf->getBufferStart(), InputData.data(), InputData.size());
-  return Buf;
+  return std::move(Buf);
 }
 
 std::unique_ptr<MemoryBuffer>
@@ -398,7 +398,7 @@ getReadWriteFile(const Twine &Filename, uint64_t FileSize, uint64_t MapSize,
                                                          Offset, EC));
   if (EC)
     return EC;
-  return Result;
+  return std::move(Result);
 }
 
 ErrorOr<std::unique_ptr<WriteThroughMemoryBuffer>>
@@ -450,7 +450,7 @@ getOpenFileImpl(sys::fs::file_t FD, const Twine &Filename, uint64_t FileSize,
         new (NamedBufferAlloc(Filename)) MemoryBufferMMapFile<MB>(
             RequiresNullTerminator, FD, MapSize, Offset, EC));
     if (!EC)
-      return Result;
+      return std::move(Result);
   }
 
   auto Buf = WritableMemoryBuffer::getNewUninitMemBuffer(MapSize, Filename);
@@ -475,7 +475,7 @@ getOpenFileImpl(sys::fs::file_t FD, const Twine &Filename, uint64_t FileSize,
     Offset += *ReadBytes;
   }
 
-  return Buf;
+  return std::move(Buf);
 }
 
 ErrorOr<std::unique_ptr<MemoryBuffer>>