[Bug c++/84664] [8 Regression] internal compiler error: in cp_perform_integral_promotions, at cp/typeck.c:2172

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84664

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |mpolacek at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |mpolacek at gcc dot gnu.org

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Untested fix:
--- a/gcc/cp/typeck.c
+++ b/gcc/cp/typeck.c
@@ -2161,6 +2161,8 @@ cp_perform_integral_promotions (tree expr, tsubst_flags_t
complain)
   tree promoted_type;

   expr = mark_rvalue_use (expr);
+  if (error_operand_p (expr))
+    return error_mark_node;

   /* [conv.prom]