[Bug inline-asm/80470] Can't compile wait4 implementation on i586 target

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80470

--- Comment #7 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 41233
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41233&action=edit
Another test-case

There's another test-case which is sensible to -O, which causes an inlining to
happen and after that a constraint can't be satisfied.