https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79976
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2017-03-09 Ever confirmed|0 |1 --- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- The patch slows down the compiler immensely, so I don't think it should be enabled by flag_checking. A new -enable-checking= option would be best. I will test if Jason's suggestion makes any difference.