[Bug rtl-optimization/63957] [5 Regression] rename -fuse-caller-save to -fipa-ra

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63957

--- Comment #4 from vries at gcc dot gnu.org ---
Created attachment 34154
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34154&action=edit
tentative patch