[clang] [CIR][CodeGen] Support DesignatedInitUpdateExpr in constant emission (PR #194238)

[via cfe-commits]

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@@ -399,9 +472,43 @@ ConstantAggregateBuilder::buildFrom(CIRGenModule &cgm, ArrayRef<Element> elems,
 
   // If we want an array type, see if all the elements are the same type and
   // appropriately spaced.
-  if (mlir::isa<cir::ArrayType>(desiredTy)) {
-    cgm.errorNYI("array aggregate constants");
-    return {};
+  if (auto arrTy = mlir::dyn_cast<cir::ArrayType>(desiredTy)) {
+    mlir::Type eltTy = arrTy.getElementType();
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AbdallahRashed wrote:

done

https://github.com/llvm/llvm-project/pull/194238