https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43673
--- Comment #6 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- On Tue, 12 Mar 2019, luoxhu at cn dot ibm.com wrote: > Actually this was introduced by the initial patch > https://gcc.gnu.org/ml/gcc-patches/2005-12/msg00330.html committed in 2005. > All That means this is not a regression, and trunk is currently in regression-fixes mode in preparation for GCC 9 branching. So I suggest resubmitting / pinging the patch after the GCC 9 branch is created, likely next month.