[Bug target/87532] bad results from vec_extract(unsigned char, foo) dependent upon function inline

[willschm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87532

--- Comment #1 from Will Schmidt <willschm at gcc dot gnu.org> ---
Created attachment 44797
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44797&action=edit
simpler testcase variation

Simplified the testcase a bit.
comment/uncomment the noinline attribute on the get_auto_n() function to toggle 
pass/fail.
Fails with -O2.
on Power8.  (probably also power9).