[Bug target/124165] [16 Regression] Many std::map<string, string> -> long compilation time at -O0 (late_pro_and_epilogue pass involved) since r16-7563

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124165

--- Comment #10 from H.J. Lu <hjl.tools at gmail dot com> ---
Created attachment 63749
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63749&action=edit
Try this