Do not pass -use-gnu-stack to bolt when building a bolt-enhanced clang binary,
diff --git a/clang/utils/perf-training/perf-helper.py b/clang/utils/perf-training/perf-helper.py
index e28920f3e0c4..c814e772d19f 100644
--- a/clang/utils/perf-training/perf-helper.py
+++ b/clang/utils/perf-training/perf-helper.py
@@ -723,7 +723,8 @@ def bolt_optimize(args):
             "-split-all-cold",
             "-split-eh",
             "-dyno-stats",
-            "-use-gnu-stack",
+            # incompatible with dlopen, see https://github.com/llvm/llvm-project/issues/174191
+            #"-use-gnu-stack",
             "-update-debug-sections",
             "-ba" if opts.method == "PERF" else "",
         ]