================
@@ -1069,6 +1069,10 @@ Address X86_32ABIInfo::EmitVAArg(CodeGenFunction &CGF,
 
   auto TypeInfo = getContext().getTypeInfoInChars(Ty);
 
+  // Empty records are ignored for parameter passing purposes on non-Windows.
+  if (!IsWin32StructABI && isEmptyRecord(getContext(), Ty, true))
+    return CGF.CreateMemTemp(Ty);
----------------
efriedma-quic wrote:

I'd prefer to use classifyArgumentType, like we do for the 64-bit case, instead 
of trying to duplicate the logic.

https://github.com/llvm/llvm-project/pull/86075
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