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-rw-r--r--lib/compiler/test/guard_SUITE.erl56
1 files changed, 54 insertions, 2 deletions
diff --git a/lib/compiler/test/guard_SUITE.erl b/lib/compiler/test/guard_SUITE.erl
index 3f073d79cb..47eb1ba78b 100644
--- a/lib/compiler/test/guard_SUITE.erl
+++ b/lib/compiler/test/guard_SUITE.erl
@@ -34,7 +34,8 @@
tricky/1,rel_ops/1,rel_op_combinations/1,literal_type_tests/1,
basic_andalso_orelse/1,traverse_dcd/1,
check_qlc_hrl/1,andalso_semi/1,t_tuple_size/1,binary_part/1,
- bad_constants/1,bad_guards/1,scotland/1]).
+ bad_constants/1,bad_guards/1,scotland/1,
+ guard_in_catch/1]).
suite() -> [{ct_hooks,[ts_install_cth]}].
@@ -52,7 +53,7 @@ groups() ->
rel_ops,rel_op_combinations,
literal_type_tests,basic_andalso_orelse,traverse_dcd,
check_qlc_hrl,andalso_semi,t_tuple_size,binary_part,
- bad_constants,bad_guards,scotland]}].
+ bad_constants,bad_guards,scotland,guard_in_catch]}].
init_per_suite(Config) ->
Config.
@@ -1852,6 +1853,57 @@ do_scotland(Echo) ->
found(_, _) -> million.
+%% Building maps in a guard in a 'catch' would crash v3_codegen.
+
+guard_in_catch(_Config) ->
+ {'EXIT',{if_clause,_}} = do_guard_in_catch_map_1(#{}),
+ {'EXIT',{if_clause,_}} = do_guard_in_catch_map_1(#{a=>b}),
+ {'EXIT',{if_clause,_}} = do_guard_in_catch_map_1(atom),
+
+ {'EXIT',{if_clause,_}} = do_guard_in_catch_map_2(#{}),
+ {'EXIT',{if_clause,_}} = do_guard_in_catch_map_2(#{a=>b}),
+ {'EXIT',{if_clause,_}} = do_guard_in_catch_map_2(atom),
+
+ {'EXIT',{if_clause,_}} = (catch do_guard_in_catch_map_3()),
+
+ {'EXIT',{if_clause,_}} = do_guard_in_catch_bin(42),
+ {'EXIT',{if_clause,_}} = do_guard_in_catch_bin(<<1,2,3>>),
+ {'EXIT',{if_clause,_}} = do_guard_in_catch_bin(atom),
+ {'EXIT',{if_clause,_}} = do_guard_in_catch_bin(#{}),
+
+ ok.
+
+do_guard_in_catch_map_1(From) ->
+ catch
+ if
+ From#{[] => sufficient} ->
+ saint
+ end.
+
+do_guard_in_catch_map_2(From) ->
+ catch
+ if
+ From#{From => sufficient} ->
+ saint
+ end.
+
+do_guard_in_catch_map_3() ->
+ try
+ if [] -> solo end
+ catch
+ Friendly when Friendly#{0 => []} -> minutes
+ after
+ membership
+ end.
+
+do_guard_in_catch_bin(From) ->
+ %% Would not crash v3_codegen, but there would be an unnecessary
+ %% 'move' to a Y register.
+ catch
+ if
+ <<From:32>> ->
+ saint
+ end.
%% Call this function to turn off constant propagation.