https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79427
--- Comment #4 from Dominik Vogt <vogt at linux dot vnet.ibm.com> --- See here for discussion of this bug report: https://gcc.gnu.org/ml/gcc-patches/2017-02/msg00666.html And here for discussion of the patch: https://gcc.gnu.org/ml/gcc-patches/2017-02/msg00446.html