================
@@ -7,53 +7,109 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/DXContainerRootSignature.h"
-#include "llvm/Support/EndianStream.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/BinaryStreamWriter.h"
+#include <cstdint>
+#include <sys/types.h>
using namespace llvm;
using namespace llvm::mcdxbc;
-void RootSignatureDesc::write(raw_ostream &OS) const {
- // Root signature header in dxcontainer has 6 uint_32t values.
- const uint32_t HeaderSize = 24;
- const uint32_t ParameterByteSize = Parameters.size_in_bytes();
- const uint32_t NumParametes = Parameters.size();
+Error setRewrite(BinaryStreamWriter &Stream, uint32_t &Offset) {
+ const uint32_t DummyValue = std::numeric_limits<uint32_t>::max();
+
+ Offset = Stream.getOffset();
+
+ if (Error Err = Stream.writeInteger(DummyValue))
+ return Err;
+
+ return Error::success();
+}
+
+Error rewriteOffset(BinaryStreamWriter &Stream, uint32_t Offset) {
+ uint64_t Value = Stream.getOffset();
+ Stream.setOffset(Offset);
+ if (Error Err = Stream.writeInteger((uint32_t)Value))
+ return Err;
+
+ Stream.setOffset(Value);
+
+ return Error::success();
+}
+
+Error RootSignatureDesc::write(raw_ostream &OS) const {
+ std::vector<uint8_t> Buffer(getSizeInBytes());
+ BinaryStreamWriter Writer(Buffer, llvm::endianness::little);
----------------
damyanp wrote:
Try buffer_ostream.
https://github.com/llvm/llvm-project/pull/128577
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