================
@@ -12,44 +12,59 @@
using namespace llvm;
using namespace llvm::mcdxbc;
+void setRewrite(raw_ostream &Stream, uint32_t &Offset) {
+ const uint32_t DummyValue = std::numeric_limits<uint32_t>::max();
+ Offset = Stream.tell();
+ support::endian::write(Stream, DummyValue, llvm::endianness::little);
+}
+
+void rewriteOffset(buffer_ostream &Stream, uint32_t Offset) {
+ uint32_t Value = Stream.tell();
+ auto *InsertPoint = &Stream.buffer()[Offset];
+ support::endian::write(InsertPoint, Value, llvm::endianness::little);
+}
----------------
damyanp wrote:
`Stream.pwrite` can help you avoid messing around with buffers and pointers.
```suggestion
void rewriteOffset(buffer_ostream &Stream, uint32_t Offset) {
uint32_t Value =
support::endian::byte_swap<uint32_t, llvm::endianness::little>(
Stream.tell());
Stream.pwrite(reinterpret_cast<const char *>(&Value), sizeof(Value), Offset);
}```
https://github.com/llvm/llvm-project/pull/128577
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