diff --git a/include/llvm/ExecutionEngine/Orc/CompileUtils.h b/include/llvm/ExecutionEngine/Orc/CompileUtils.h
index 282e2c1fbb6..d4d9a324c6e 100644
--- a/include/llvm/ExecutionEngine/Orc/CompileUtils.h
+++ b/include/llvm/ExecutionEngine/Orc/CompileUtils.h
@@ -22,7 +22,7 @@
 #include "llvm/Support/Error.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/ObjectMemoryBuffer.h"
+#include "llvm/Support/SmallVectorMemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetMachine.h"
 #include <algorithm>
diff --git a/include/llvm/Support/ObjectMemoryBuffer.h b/include/llvm/Support/SmallVectorMemoryBuffer.h
similarity index 76%
rename from include/llvm/Support/ObjectMemoryBuffer.h
rename to include/llvm/Support/SmallVectorMemoryBuffer.h
index 03567530fb3..7a5d13e197d 100644
--- a/include/llvm/Support/ObjectMemoryBuffer.h
+++ b/include/llvm/Support/SmallVectorMemoryBuffer.h
@@ -1,4 +1,5 @@
-//===- ObjectMemoryBuffer.h - SmallVector-backed MemoryBuffrer  -*- C++ -*-===//
+//===- SmallVectorMemoryBuffer.h - SmallVector-backed MemoryBuffrer  -*- C++
+//-*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -27,25 +28,26 @@ namespace llvm {
 /// instances. This is useful for MCJIT and Orc, where object files are streamed
 /// into SmallVectors, then inspected using ObjectFile (which takes a
 /// MemoryBuffer).
-class ObjectMemoryBuffer : public MemoryBuffer {
+class SmallVectorMemoryBuffer : public MemoryBuffer {
 public:
-
-  /// \brief Construct an ObjectMemoryBuffer from the given SmallVector r-value.
+  /// \brief Construct an SmallVectorMemoryBuffer from the given SmallVector
+  /// r-value.
   ///
   /// FIXME: It'd be nice for this to be a non-templated constructor taking a
   /// SmallVectorImpl here instead of a templated one taking a SmallVector<N>,
   /// but SmallVector's move-construction/assignment currently only take
   /// SmallVectors. If/when that is fixed we can simplify this constructor and
   /// the following one.
-  ObjectMemoryBuffer(SmallVectorImpl<char> &&SV)
-    : SV(std::move(SV)), BufferName("<in-memory object>") {
+  SmallVectorMemoryBuffer(SmallVectorImpl<char> &&SV)
+      : SV(std::move(SV)), BufferName("<in-memory object>") {
     init(this->SV.begin(), this->SV.end(), false);
   }
 
-  /// \brief Construct a named ObjectMemoryBuffer from the given SmallVector
+  /// \brief Construct a named SmallVectorMemoryBuffer from the given
+  /// SmallVector
   ///        r-value and StringRef.
-  ObjectMemoryBuffer(SmallVectorImpl<char> &&SV, StringRef Name)
-    : SV(std::move(SV)), BufferName(Name) {
+  SmallVectorMemoryBuffer(SmallVectorImpl<char> &&SV, StringRef Name)
+      : SV(std::move(SV)), BufferName(Name) {
     init(this->SV.begin(), this->SV.end(), false);
   }
 
diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.cpp b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
index 7b3acb830e0..82647ea9440 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.cpp
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
@@ -164,7 +164,7 @@ std::unique_ptr<MemoryBuffer> MCJIT::emitObject(Module *M) {
   // Flush the output buffer to get the generated code into memory
 
   std::unique_ptr<MemoryBuffer> CompiledObjBuffer(
-                                new ObjectMemoryBuffer(std::move(ObjBufferSV)));
+      new SmallVectorMemoryBuffer(std::move(ObjBufferSV)));
 
   // If we have an object cache, tell it about the new object.
   // Note that we're using the compiled image, not the loaded image (as below).
diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.h b/lib/ExecutionEngine/MCJIT/MCJIT.h
index 7fe7ae586f3..943b14942a0 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.h
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.h
@@ -17,7 +17,7 @@
 #include "llvm/ExecutionEngine/RTDyldMemoryManager.h"
 #include "llvm/ExecutionEngine/RuntimeDyld.h"
 #include "llvm/IR/Module.h"
-#include "llvm/Support/ObjectMemoryBuffer.h"
+#include "llvm/Support/SmallVectorMemoryBuffer.h"
 
 namespace llvm {
 class MCJIT;
diff --git a/lib/LTO/ThinLTOCodeGenerator.cpp b/lib/LTO/ThinLTOCodeGenerator.cpp
index 80260669c59..ab01957f583 100644
--- a/lib/LTO/ThinLTOCodeGenerator.cpp
+++ b/lib/LTO/ThinLTOCodeGenerator.cpp
@@ -36,9 +36,9 @@
 #include "llvm/Support/CachePruning.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/Error.h"
-#include "llvm/Support/ObjectMemoryBuffer.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/SHA1.h"
+#include "llvm/Support/SmallVectorMemoryBuffer.h"
 #include "llvm/Support/TargetRegistry.h"
 #include "llvm/Support/ThreadPool.h"
 #include "llvm/Support/Threading.h"
@@ -274,7 +274,7 @@ std::unique_ptr<MemoryBuffer> codegenModule(Module &TheModule,
     // Run codegen now. resulting binary is in OutputBuffer.
     PM.run(TheModule);
   }
-  return make_unique<ObjectMemoryBuffer>(std::move(OutputBuffer));
+  return make_unique<SmallVectorMemoryBuffer>(std::move(OutputBuffer));
 }
 
 /// Manage caching for a single Module.
@@ -475,7 +475,7 @@ ProcessThinLTOModule(Module &TheModule, ModuleSummaryIndex &Index,
       auto Index = buildModuleSummaryIndex(TheModule, nullptr, &PSI);
       WriteBitcodeToFile(TheModule, OS, true, &Index);
     }
-    return make_unique<ObjectMemoryBuffer>(std::move(OutputBuffer));
+    return make_unique<SmallVectorMemoryBuffer>(std::move(OutputBuffer));
   }
 
   return codegenModule(TheModule, TM);
diff --git a/lib/Support/MemoryBuffer.cpp b/lib/Support/MemoryBuffer.cpp
index 9530de66466..9139ba4ead4 100644
--- a/lib/Support/MemoryBuffer.cpp
+++ b/lib/Support/MemoryBuffer.cpp
@@ -18,10 +18,10 @@
 #include "llvm/Support/Errno.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/MathExtras.h"
-#include "llvm/Support/ObjectMemoryBuffer.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/Process.h"
 #include "llvm/Support/Program.h"
+#include "llvm/Support/SmallVectorMemoryBuffer.h"
 #include <cassert>
 #include <cerrno>
 #include <cstring>
@@ -534,4 +534,4 @@ MemoryBufferRef MemoryBuffer::getMemBufferRef() const {
 }
 
 void MemoryBuffer::anchor() {}
-void ObjectMemoryBuffer::anchor() {}
+void SmallVectorMemoryBuffer::anchor() {}