[Bug c/122572] [15/16 regression] Segmentation fault on aarch64 building with -O2, no issue with -O2 -fschedule-insns

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122572

--- Comment #21 from uecker at gcc dot gnu.org ---
Created attachment 63250
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63250&action=edit
patch 2/2

This is the more critical second part (which is not needed to fix the specific
bug reported, but addresses the more general issue)