https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67391
--- Comment #5 from Kazumoto Kojima <kkojima at gcc dot gnu.org> --- (In reply to Oleg Endo from comment #4) > I've just checked, the code is also present in GCC 5. Because of the funny > side effects even with LRA disabled (this PR) I'd like to backport this to > the GCC 5 branch, too. Yes, this is clearly a 5/6 regression. My test has passed C and C++ part with no new failures. I'll report back when test completed.