https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80559
Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |paolo.carlini at oracle dot com --- Comment #6 from Paolo Carlini <paolo.carlini at oracle dot com> --- The ICE cannot be reproduced in trunk. Apparently it got fixed for 8.1.0 and the fix backported to 7.2.0 too. Thus I think we can close this completely or maybe remove the regression markers and change it to a pure diagnostic enhancement issue, because certainly the series of four identical error messages about template argument 2 doesn't make any sense. Barring different opinions I'm going to do the latter in a day or so.