[MCJIT] Remove a few more references to JITMemoryManager that survived r218316.

[oota-llvm.git] / include / llvm / ExecutionEngine / ObjectBuffer.h

diff --git a/include/llvm/ExecutionEngine/ObjectBuffer.h b/include/llvm/ExecutionEngine/ObjectBuffer.h
index 81dc88dcd01a1524e67abd9c47d4ce1d9473cce5..ee4820aa6ee0de08ac4c89060b036193f20d751f 100644 (file)
--- a/include/llvm/ExecutionEngine/ObjectBuffer.h
+++ b/include/llvm/ExecutionEngine/ObjectBuffer.h
@@ -21,55 +21,54 @@
 
 namespace llvm {
 
-/// ObjectBuffer - This class acts as a container for the memory buffer used during
-/// generation and loading of executable objects using MCJIT and RuntimeDyld.  The
+/// This class acts as a container for the memory buffer used during generation
+/// and loading of executable objects using MCJIT and RuntimeDyld. The
 /// underlying memory for the object will be owned by the ObjectBuffer instance
-/// throughout its lifetime.  The getMemBuffer() method provides a way to create a
-/// MemoryBuffer wrapper object instance to be owned by other classes (such as
-/// ObjectFile) as needed, but the MemoryBuffer instance returned does not own the
-/// actual memory it points to.
+/// throughout its lifetime.
 class ObjectBuffer {
   virtual void anchor();
 public:
   ObjectBuffer() {}
-  ObjectBuffer(MemoryBuffer* Buf) : Buffer(Buf) {}
+  ObjectBuffer(std::unique_ptr<MemoryBuffer> Buf) : Buffer(std::move(Buf)) {}
   virtual ~ObjectBuffer() {}
 
-  /// getMemBuffer - Like MemoryBuffer::getMemBuffer() this function
-  /// returns a pointer to an object that is owned by the caller. However,
-  /// the caller does not take ownership of the underlying memory.
-  MemoryBuffer *getMemBuffer() const {
-    return MemoryBuffer::getMemBuffer(Buffer->getBuffer(), "", false);
-  }
+  MemoryBufferRef getMemBuffer() const { return Buffer->getMemBufferRef(); }
 
   const char *getBufferStart() const { return Buffer->getBufferStart(); }
   size_t getBufferSize() const { return Buffer->getBufferSize(); }
   StringRef getBuffer() const { return Buffer->getBuffer(); }
+  StringRef getBufferIdentifier() const {
+    return Buffer->getBufferIdentifier();
+  }
 
 protected:
   // The memory contained in an ObjectBuffer
   std::unique_ptr<MemoryBuffer> Buffer;
 };
 
-/// ObjectBufferStream - This class encapsulates the SmallVector and
-/// raw_svector_ostream needed to generate an object using MC code emission
-/// while providing a common ObjectBuffer interface for access to the
-/// memory once the object has been generated.
+/// This class encapsulates the SmallVector and raw_svector_ostream needed to
+/// generate an object using MC code emission while providing a common
+/// ObjectBuffer interface for access to the memory once the object has been
+/// generated.
 class ObjectBufferStream : public ObjectBuffer {
   void anchor() override;
 public:
-  ObjectBufferStream() {}
+  ObjectBufferStream() : OS(SV) {}
   virtual ~ObjectBufferStream() {}
 
   raw_ostream &getOStream() { return OS; }
   void flush()
   {
+    OS.flush();
+
     // Make the data accessible via the ObjectBuffer::Buffer
-    Buffer.reset(MemoryBuffer::getMemBuffer(OS.str(), "", false));
+    Buffer =
+        MemoryBuffer::getMemBuffer(StringRef(SV.data(), SV.size()), "", false);
   }
 
 protected:
-  small_string_ostream<4096> OS; // Working buffer into which we JIT.
+  SmallVector<char, 4096> SV; // Working buffer into which we JIT.
+  raw_svector_ostream     OS; // streaming wrapper
 };
 
 } // namespace llvm