http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50494
--- Comment #9 from Michael Meissner <meissner at gcc dot gnu.org> 2013-02-12 19:07:18 UTC --- The -fsection-anchors option appears to be important. If I use -fsection-anchors (which is default for powerpc64-linux), LTO does not align the .rodata section, but uses Altivec memory instructions. If I use -fno-section-anchors, the .rodata section is not aligned, but it doesn't use Altivec memory instructions, so the test passes.
