[Bug target/65369] [5 Regression] nettle test failure on powerpc64le-linux-gnu when built with -O3

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65369

--- Comment #20 from Martin Sebor <msebor at gcc dot gnu.org> ---
The original test doesn't show any valgrind errors so these could be the result
of using delta to reduce the test case.