1 files changed, 68 insertions, 0 deletions
diff --git a/llvm/lib/ObjectYAML/OffloadEmitter.cpp b/llvm/lib/ObjectYAML/OffloadEmitter.cpp
new file mode 100644
index 000000000000..3ffbc4ff0e11
--- /dev/null
+++ b/llvm/lib/ObjectYAML/OffloadEmitter.cpp
@@ -0,0 +1,68 @@
+//===- OffloadEmitter.cpp -------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Object/OffloadBinary.h"
+#include "llvm/ObjectYAML/OffloadYAML.h"
+#include "llvm/ObjectYAML/yaml2obj.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+using namespace OffloadYAML;
+
+namespace llvm {
+namespace yaml {
+
+bool yaml2offload(Binary &Doc, raw_ostream &Out, ErrorHandler EH) {
+  for (const auto &Member : Doc.Members) {
+    object::OffloadBinary::OffloadingImage Image{};
+    if (Member.ImageKind)
+      Image.TheImageKind = *Member.ImageKind;
+    if (Member.OffloadKind)
+      Image.TheOffloadKind = *Member.OffloadKind;
+    if (Member.Flags)
+      Image.Flags = *Member.Flags;
+
+    StringMap<StringRef> &StringData = Image.StringData;
+    if (Member.StringEntries) {
+      for (const auto &Entry : *Member.StringEntries) {
+        StringData[Entry.Key] = Entry.Value;
+      }
+    }
+
+    SmallVector<char, 1024> Data;
+    raw_svector_ostream OS(Data);
+    if (Member.Content)
+      Member.Content->writeAsBinary(OS);
+    Image.Image = MemoryBuffer::getMemBufferCopy(OS.str());
+
+    std::unique_ptr<MemoryBuffer> Binary = object::OffloadBinary::write(Image);
+
+    // Copy the data to a new buffer so we can modify the bytes directly.
+    SmallVector<char> NewBuffer;
+    std::copy(Binary->getBufferStart(), Binary->getBufferEnd(),
+              std::back_inserter(NewBuffer));
+    auto *TheHeader =
+        reinterpret_cast<object::OffloadBinary::Header *>(&NewBuffer[0]);
+    if (Doc.Version)
+      TheHeader->Version = *Doc.Version;
+    if (Doc.Size)
+      TheHeader->Size = *Doc.Size;
+    if (Doc.EntryOffset)
+      TheHeader->EntryOffset = *Doc.EntryOffset;
+    if (Doc.EntrySize)
+      TheHeader->EntrySize = *Doc.EntrySize;
+
+    Out.write(NewBuffer.begin(), NewBuffer.size());
+  }
+
+  return true;
+}
+
+} // namespace yaml
+} // namespace llvm