https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98442
H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2020-12-31 Ever confirmed|0 |1 --- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> --- Please take a look at users/hjl/pieces/master branch: https://gitlab.com/x86-gcc/gcc/-/tree/users/hjl/pieces/master You may get some ideas.