http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57380
--- Comment #1 from Jeremiah Willcock <jewillco at osl dot iu.edu> --- I tested version "(Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3" and that fails as well (with "note: not vectorized: data ref analysis failed D.2097_9 = *D.2115_16;" in the vectorization report).
