https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98116
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Nathan Sidwell <nat...@gcc.gnu.org>: https://gcc.gnu.org/g:5a26d4a204c8a462a7e0a1a86bb2f25ecd470aad commit r11-5745-g5a26d4a204c8a462a7e0a1a86bb2f25ecd470aad Author: Nathan Sidwell <nat...@acm.org> Date: Fri Dec 4 08:34:41 2020 -0800 c++: Revert dependent-array changes [PR 98116] The changes reverted here are exposing an existing problem with alias template comparisons. The typename_type changes are also incomplete, possibly for similar reasons. It seems safer to revert them, fix the underlying issue and then move forwards. The testcases is adjusted to more robustly check the specialization table, and ICEs with and without the c++ changes. Revert: 62fb1b9e0da c++: Fix array type dependency [PR 98107] 07589ca2b2c c++: typename_type structural comparison 29ae1d7751 c++: Extend build_array_type API PR c++/98116 gcc/cp/ * cp-tree.h (comparing_typenames): Delete. (cplus_build_array_type): Remove default parm. * pt.c (comparing_typenames): Delete. (spec_hasher::equal): Don't increment it. * tree.c (set_array_type_canon): Remove dep parm. (build_cplus_array_type): Remove dep parm changes. (cp_build_qualified_type_real): Remove dependent array type changes. (strip_typedefs): Likewise. * typeck.c (structural_comptypes): Revert comparing_typename changes. gcc/testsuite/ * g++.dg/template/pr98116.C: Enable robust checking.
