[Bug target/83496] [7/8 regression] wrong code generated with -Os -mbranch-cost=1

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83496

--- Comment #23 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Created attachment 43497
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43497&action=edit
Tentative fix

To be tested.