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-rw-r--r--lib/compiler/src/beam_ssa_type.erl6
1 files changed, 2 insertions, 4 deletions
diff --git a/lib/compiler/src/beam_ssa_type.erl b/lib/compiler/src/beam_ssa_type.erl
index 4ea3781783..ede57875e2 100644
--- a/lib/compiler/src/beam_ssa_type.erl
+++ b/lib/compiler/src/beam_ssa_type.erl
@@ -1218,10 +1218,8 @@ t_tuple_size(#t_tuple{size=Size,exact=true}) ->
t_tuple_size(_) ->
none.
-is_singleton_type(#t_atom{elements=[_]}) -> true;
-is_singleton_type(#t_integer{elements={V,V}}) -> true;
-is_singleton_type(nil) -> true;
-is_singleton_type(_) -> false.
+is_singleton_type(Type) ->
+ get_literal_from_type(Type) =/= none.
%% join(Type1, Type2) -> Type
%% Return the "join" of Type1 and Type2. The join is a more general