[DX] Speculative fix for big endian encoding

I missed byte swapping the size field.

diff --git a/llvm/lib/MC/DXContainerPSVInfo.cpp b/llvm/lib/MC/DXContainerPSVInfo.cpp
index 5463f85..399f54c 100644 (file)
--- a/llvm/lib/MC/DXContainerPSVInfo.cpp
+++ b/llvm/lib/MC/DXContainerPSVInfo.cpp
@@ -26,6 +26,8 @@ void PSVRuntimeInfo::write(raw_ostream &OS, uint32_t Version) const {
   default:
     InfoSize = sizeof(dxbc::PSV::v2::RuntimeInfo);
   }
+  if (sys::IsBigEndianHost)
+    sys::swapByteOrder(InfoSize);
   // Write the size of the info.
   OS.write(reinterpret_cast<const char *>(&InfoSize), sizeof(uint32_t));
   // Write the info itself.