https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86767
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This should fix it. More testing needed.
--- a/gcc/cp/constexpr.c
+++ b/gcc/cp/constexpr.c
@@ -3950,6 +3950,16 @@ cxx_eval_statement_list (const constexpr_ctx *ctx, tree
t,
for (i = tsi_start (t); !tsi_end_p (i); tsi_next (&i))
{
tree stmt = tsi_stmt (i);
+ /* We've found a continue, so skip everything until we reach
+ the label its jumping to. */
+ if (continues (jump_target))
+ {
+ if (label_matches (ctx, jump_target, stmt))
+ /* Found it. */
+ *jump_target = NULL_TREE;
+ else
+ continue;
+ }
if (TREE_CODE (stmt) == DEBUG_BEGIN_STMT)
continue;
r = cxx_eval_constant_expression (ctx, stmt, false,
