[Bug target/81535] [8 regression] gcc.target/powerpc/pr79439.c fails starting with r250442

[ygribov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81535

--- Comment #3 from Yury Gribov <ygribov at gcc dot gnu.org> ---
Created attachment 41822
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41822&action=edit
Patch to disable test on PowerPC

(In reply to Yury Gribov from comment #2)
> pr56727-2.c is interesting, it does not repro on x86.

Ok, pr56727-2 fails because it gets optimized by tailcall pass (which is even
more agressive at optimizing recursive calls).  I worked around this (by
prohibiting tailcalls) but generated assembly is too different from x86.  So
perhaps simply disable this test on Power?  Patch attached.