[Bug other/80803] libgo appears to be miscompiled on powerpc64le since r247497

["jamborm at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80803

--- Comment #27 from Martin Jambor <jamborm at gcc dot gnu.org> ---
Created attachment 41517
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41517&action=edit
Hack for revealing compiler command lines

Thanks Ian, the above was definitely helpful but did not allow me to
get at the compiler invocation lines, which was what I needed to get
at tree dumps, run the compilation in gdb and so forth.  In the end, i
had to resort to the attached hack to get them.  I do not know how the
trace feature of libgo/gotest script is supposed to work but I had to
redirect them to find them.

It would be great if the testsuite left some libgo.log file with all
necessary command lines to replay the test by hand like all other
testsuites do.  I spent half of the time on this bug so far just
looking for the command lines which does not look reasonable.