https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92531
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:3815f211649cd5c8a277348aa71c9c18bc5ed070 commit r9-8141-g3815f211649cd5c8a277348aa71c9c18bc5ed070 Author: Jason Merrill <ja...@redhat.com> Date: Fri Jan 17 08:37:49 2020 -0500 PR c++/92531 - ICE with noexcept(lambda). This was failing because uses_template_parms didn't recognize LAMBDA_EXPR as a kind of expression. Instead of trying to enumerate all the different varieties of expression and then aborting if what's left isn't error_mark_node, let's handle error_mark_node and then assume anything else is an expression. * pt.c (uses_template_parms): Don't try to enumerate all the expression cases.
