https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66448
--- Comment #9 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > Created attachment 35718 > --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35718&action=edit > Tentative patch for issue #3 The patch does not fix the ../../work/gcc/ipa-pure-const.c:1636:1: error: '{anonymous}::pass_ipa_pure_const::pass_ipa_pure_const(gcc::context*)' defined but not used [-Werror=unused-function] issue.