try top-down

clang/lib/CIR/Dialect/Transforms/CallConvLowering.cpp

@@ -184,7 +184,7 @@ void CallConvLoweringPass::runOnOperation() {
   // Configure rewrite to ignore new ops created during the pass.
   GreedyRewriteConfig config;
   config.strictMode = GreedyRewriteStrictness::ExistingOps;
-
+  config.useTopDownTraversal = true;
   // Apply patterns.
   if (failed(applyOpPatternsAndFold(ops, std::move(patterns), config)))
     signalPassFailure();