https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82220
--- Comment #2 from Alexander Nesterovskiy <alexander.nesterovskiy at intel dot com> --- Yes, I've applied a patch and looks like it helped: --- Overhead Samples Symbol trunk@252796 + patch 31.57% 412037 mgau_eval 30.54% --> 397608 vector_gautbl_eval_logs3 9.78% 127468 subvq_mgau_shortlist --- And I see in perf that actual execution goes exactly the same way as it goes for r250415 (corresponding parts of function bodies are actually being executed).