[clang] [X86_32] Teach X86_32 va_arg to ignore empty structs. (PR #86075)

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:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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git-clang-format --diff 44a81af510801edce842e9574ec4d52cc7bd0ae9 5178a001cc3ce765e3d29e91e24597fa1b0f42d6 -- clang/test/CodeGenCXX/x86_32-vaarg.cpp clang/lib/CodeGen/Targets/X86.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/CodeGen/Targets/X86.cpp b/clang/lib/CodeGen/Targets/X86.cpp
index 2cb880752d..38143d1eed 100644
--- a/clang/lib/CodeGen/Targets/X86.cpp
+++ b/clang/lib/CodeGen/Targets/X86.cpp
@@ -1069,7 +1069,7 @@ Address X86_32ABIInfo::EmitVAArg(CodeGenFunction &CGF,
 
   auto TypeInfo = getContext().getTypeInfoInChars(Ty);
 
-  CCState State(*const_cast<CGFunctionInfo*>(CGF.CurFnInfo));
+  CCState State(*const_cast<CGFunctionInfo *>(CGF.CurFnInfo));
   ABIArgInfo AI = classifyArgumentType(Ty, State, /*ArgIndex*/ 0);
   // Empty records are ignored for parameter passing purposes.
   if (AI.isIgnore())

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