[Bug go/64999] s390x libgo test failure in TestMemoryProfiler

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64999

--- Comment #52 from Ian Lance Taylor <ian at airs dot com> ---
Why not just
    pc++;
on all targets?  Why the #ifdef?  It seems to me that we should aim for
consistent results on all platforms.