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-rw-r--r--lib/dialyzer/src/dialyzer_dataflow.erl4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl
index 6e49043551..48eaf8510b 100644
--- a/lib/dialyzer/src/dialyzer_dataflow.erl
+++ b/lib/dialyzer/src/dialyzer_dataflow.erl
@@ -2421,7 +2421,9 @@ filter_fail_clauses([Clause|Left]) ->
case (cerl:clause_pats(Clause) =:= []) of
true ->
Body = cerl:clause_body(Clause),
- case cerl:is_literal(Body) andalso (cerl:concrete(Body) =:= fail) of
+ case cerl:is_literal(Body) andalso (cerl:concrete(Body) =:= fail) orelse
+ cerl:is_c_primop(Body) andalso
+ (cerl:atom_val(cerl:primop_name(Body)) =:= match_fail) of
true -> filter_fail_clauses(Left);
false -> [Clause|filter_fail_clauses(Left)]
end;