[Bug go/65180] regression in gccgo testcase runtime/pprof on ppc64le, ppc64 following move to go 1.4 from 1.3

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65180

--- Comment #1 from Ian Lance Taylor <ian at airs dot com> ---
See PR 64999 for more discussion.