[Bug target/104323] [12 Regression] PCH (and maybe GC) of rs6000 builtins broken

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104323

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 52323
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52323&action=edit
gcc12-pr104323.patch

Untested fix.