[Bug c++/100055] [10/11/12 Regression] ICE on invalid requires expression

[mpolacek at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100055

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
            Summary|ICE on invalid requires     |[10/11/12 Regression] ICE
                   |expression                  |on invalid requires
                   |                            |expression
           Assignee|unassigned at gcc dot gnu.org      |mpolacek at gcc dot 
gnu.org
           Priority|P3                          |P4
   Target Milestone|---                         |10.4

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This is probably sufficient:

--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -9695,7 +9695,7 @@ grokfndecl (tree ctype,
       bool memtmpl = (!block_local
              && (processing_template_decl
              > template_class_depth (ctx)));
-      if (memtmpl)
+      if (memtmpl && current_template_parms)
         tmpl_reqs = TEMPLATE_PARMS_CONSTRAINTS (current_template_parms);
       tree ci = build_constraints (tmpl_reqs, decl_reqs);
       if (concept_p && ci)