[Bug target/85436] [7 Regression] ICE compiling go code with -mcpu=power9

[acsawdey at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85436

--- Comment #1 from acsawdey at gcc dot gnu.org ---
Created attachment 43966
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43966&action=edit
shorter reduced test case

I've further reduced the test case and now it's only 38 lines so so should be
easier to work with.