aboutsummaryrefslogtreecommitdiffstats
path: root/lib/compiler/test
diff options
context:
space:
mode:
Diffstat (limited to 'lib/compiler/test')
-rw-r--r--lib/compiler/test/bs_match_SUITE.erl50
-rw-r--r--lib/compiler/test/compile_SUITE.erl44
-rw-r--r--lib/compiler/test/guard_SUITE.erl79
-rw-r--r--lib/compiler/test/map_SUITE.erl61
4 files changed, 225 insertions, 9 deletions
diff --git a/lib/compiler/test/bs_match_SUITE.erl b/lib/compiler/test/bs_match_SUITE.erl
index 6e138b0a43..7fb0a16540 100644
--- a/lib/compiler/test/bs_match_SUITE.erl
+++ b/lib/compiler/test/bs_match_SUITE.erl
@@ -36,7 +36,8 @@
match_string/1,zero_width/1,bad_size/1,haystack/1,
cover_beam_bool/1,matched_out_size/1,follow_fail_branch/1,
no_partition/1,calling_a_binary/1,binary_in_map/1,
- match_string_opt/1]).
+ match_string_opt/1,map_and_binary/1,
+ unsafe_branch_caching/1]).
-export([coverage_id/1,coverage_external_ignore/2]).
@@ -62,7 +63,8 @@ groups() ->
otp_7498,match_string,zero_width,bad_size,haystack,
cover_beam_bool,matched_out_size,follow_fail_branch,
no_partition,calling_a_binary,binary_in_map,
- match_string_opt]}].
+ match_string_opt,map_and_binary,
+ unsafe_branch_caching]}].
init_per_suite(Config) ->
@@ -1225,6 +1227,50 @@ match_string_opt(Config) when is_list(Config) ->
do_match_string_opt({<<1>>,{v,V}}=T) ->
{x,V,T}.
+%% If 'bin_opt_info' was given the warning would lack filename
+%% and line number.
+
+map_and_binary(_Config) ->
+ {<<"10">>,<<"37">>,<<"am">>} = do_map_and_binary(<<"10:37am">>),
+ Map1 = #{time => "noon"},
+ {ok,Map1} = do_map_and_binary(Map1),
+ Map2 = #{hour => 8, min => 42},
+ {8,42,Map2} = do_map_and_binary(Map2),
+ ok.
+
+do_map_and_binary(<<Hour:2/bytes, $:, Min:2/bytes, Rest/binary>>) ->
+ {Hour, Min, Rest};
+do_map_and_binary(#{time := _} = T) ->
+ {ok, T};
+do_map_and_binary(#{hour := Hour, min := Min} = T) ->
+ {Hour, Min, T}.
+
+%% Unsafe caching of branch outcomes in beam_bsm would cause the
+%% delayed creation of sub-binaries optimization to be applied even
+%% when it was unsafe.
+
+unsafe_branch_caching(_Config) ->
+ <<>> = do_unsafe_branch_caching(<<42,1>>),
+ <<>> = do_unsafe_branch_caching(<<42,2>>),
+ <<>> = do_unsafe_branch_caching(<<42,3>>),
+ <<17,18>> = do_unsafe_branch_caching(<<42,3,17,18>>),
+ <<>> = do_unsafe_branch_caching(<<1,3,42,2>>),
+
+ ok.
+
+do_unsafe_branch_caching(<<Code/integer, Bin/binary>>) ->
+ <<C1/integer, B1/binary>> = Bin,
+ case C1 of
+ X when X =:= 1 orelse X =:= 2 ->
+ Bin2 = <<>>;
+ _ ->
+ Bin2 = B1
+ end,
+ case Code of
+ 1 -> do_unsafe_branch_caching(Bin2);
+ _ -> Bin2
+ end.
+
check(F, R) ->
R = F().
diff --git a/lib/compiler/test/compile_SUITE.erl b/lib/compiler/test/compile_SUITE.erl
index df401ccc2b..cbdd9ce8cd 100644
--- a/lib/compiler/test/compile_SUITE.erl
+++ b/lib/compiler/test/compile_SUITE.erl
@@ -31,7 +31,9 @@
other_output/1, encrypted_abstr/1,
bad_record_use1/1, bad_record_use2/1, strict_record/1,
missing_testheap/1, cover/1, env/1, core/1, asm/1,
- sys_pre_attributes/1, dialyzer/1]).
+ sys_pre_attributes/1, dialyzer/1,
+ warnings/1
+ ]).
-export([init/3]).
@@ -48,7 +50,7 @@ all() ->
other_output, encrypted_abstr,
{group, bad_record_use}, strict_record,
missing_testheap, cover, env, core, asm,
- sys_pre_attributes, dialyzer].
+ sys_pre_attributes, dialyzer, warnings].
groups() ->
[{bad_record_use, [],
@@ -895,6 +897,44 @@ dialyzer(Config) ->
[{a,b,c}] = M:M(),
ok.
+
+%% Test that warnings contain filenames and line numbers.
+warnings(_Config) ->
+ TestDir = filename:dirname(code:which(?MODULE)),
+ Files = filelib:wildcard(filename:join(TestDir, "*.erl")),
+ test_lib:p_run(fun do_warnings/1, Files).
+
+do_warnings(F) ->
+ {ok,_,_,Ws} = compile:file(F, [binary,bin_opt_info,return]),
+ do_warnings_1(Ws, F).
+
+do_warnings_1([{"no_file",Ws}|_], F) ->
+ io:format("~s:\nMissing file for warnings: ~p\n",
+ [F,Ws]),
+ error;
+do_warnings_1([{Name,Ws}|T], F) ->
+ case filename:extension(Name) of
+ ".erl" ->
+ do_warnings_2(Ws, T, F);
+ _ ->
+ io:format("~s:\nNo .erl extension\n", [F]),
+ error
+ end;
+do_warnings_1([], _) -> ok.
+
+do_warnings_2([{Int,_,_}=W|T], Next, F) ->
+ if
+ is_integer(Int) ->
+ do_warnings_2(T, Next, F);
+ true ->
+ io:format("~s:\nMissing line number: ~p\n",
+ [F,W]),
+ error
+ end;
+do_warnings_2([], Next, F) ->
+ do_warnings_1(Next, F).
+
+
%%%
%%% Utilities.
%%%
diff --git a/lib/compiler/test/guard_SUITE.erl b/lib/compiler/test/guard_SUITE.erl
index b3b67155b3..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]).
+ 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]}].
+ bad_constants,bad_guards,scotland,guard_in_catch]}].
init_per_suite(Config) ->
Config.
@@ -1831,6 +1832,80 @@ bad_guards_2(M, [_]) when M#{a := 0, b => 0}, map_size(M) ->
bad_guards_3(M, [_]) when is_map(M) andalso M#{a := 0, b => 0}, length(M) ->
ok.
+%% beam_bool would remove the initialization of {y,0}.
+%% (Thanks to Thomas Arts and QuickCheck.)
+
+scotland(_Config) ->
+ million = do_scotland(placed),
+ {'EXIT',{{badmatch,placed},_}} = (catch do_scotland(false)),
+ {'EXIT',{{badmatch,placed},_}} = (catch do_scotland(true)),
+ {'EXIT',{{badmatch,placed},_}} = (catch do_scotland(echo)),
+ ok.
+
+do_scotland(Echo) ->
+ found(case Echo of
+ Echo when true; Echo, Echo, Echo ->
+ Echo;
+ echo ->
+ []
+ end,
+ Echo = placed).
+
+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.
id(I) -> I.
diff --git a/lib/compiler/test/map_SUITE.erl b/lib/compiler/test/map_SUITE.erl
index abc12a359d..cff3b5deb4 100644
--- a/lib/compiler/test/map_SUITE.erl
+++ b/lib/compiler/test/map_SUITE.erl
@@ -63,7 +63,10 @@
%% errors in 17.0-rc1
t_update_values/1,
t_expand_map_update/1,
- t_export/1
+ t_export/1,
+
+ %% errors in 18
+ t_register_corruption/1
]).
suite() -> [].
@@ -108,11 +111,13 @@ all() ->
t_build_and_match_nil,
t_build_and_match_structure,
-
%% errors in 17.0-rc1
t_update_values,
t_expand_map_update,
- t_export
+ t_export,
+
+ %% errors in 18
+ t_register_corruption
].
groups() -> [].
@@ -878,6 +883,9 @@ t_update_map_expressions(Config) when is_list(Config) ->
%% Error cases.
{'EXIT',{{badmap,<<>>},_}} = (catch (id(<<>>))#{ a := 42, b => 2 }),
{'EXIT',{{badmap,[]},_}} = (catch (id([]))#{ a := 42, b => 2 }),
+ {'EXIT',{{badmap,_},_}} =
+ (catch (fun t_update_map_expressions/1)#{u => 42}),
+
ok.
@@ -1827,6 +1835,53 @@ map_guard_sequence_mixed(K1,K2,M) ->
#{ K1 := 1, c := 6, K2 := 8, h := 3} -> 6
end.
+%% register corruption discovered in 18 due to
+%% get_map_elements might destroys registers when fail-label is taken.
+%% Only seen when patterns have two targets,
+%% specifically: we copy one register, and then jump.
+%% {test,is_map,{f,5},[{x,1}]}.
+%%
+%% {get_map_elements,{f,7},{x,1},{list,[{atom,a},{x,1},{atom,b},{x,2}]}}.
+%% %% if 'a' exists but not 'b' {x,1} is overwritten, jump {f,7}
+%%
+%% {move,{integer,1},{x,0}}.
+%% {call_only,3,{f,10}}.
+%%
+%% {label,7}.
+%% {get_map_elements,{f,8},{x,1},{list,[{atom,b},{x,2}]}}.
+%% %% {x,1} (src) is now corrupt
+%%
+%% {move,{x,0},{x,1}}.
+%% {move,{integer,2},{x,0}}.
+%% {call_only,3,{f,10}}.
+%%
+%% Only happens in beam_block opt_move pass with two destinations.
+
+t_register_corruption(Config) when is_list(Config) ->
+ M = #{a=> <<"value">>, c=>3},
+ {3,wanted,<<"value">>} = register_corruption_bar(M,wanted),
+ {3,wanted,<<"value">>} = register_corruption_foo(wanted,M),
+ ok.
+
+register_corruption_foo(A,#{a := V1, b := V2}) ->
+ register_corruption_dummy_call(1,V1,V2);
+register_corruption_foo(A,#{b := V}) ->
+ register_corruption_dummy_call(2,A,V);
+register_corruption_foo(A,#{a := V}) ->
+ register_corruption_dummy_call(3,A,V).
+
+register_corruption_bar(M,A) ->
+ case M of
+ #{a := V1, b := V2} ->
+ register_corruption_dummy_call(1,V1,V2);
+ #{b := V} ->
+ register_corruption_dummy_call(2,A,V);
+ #{a := V} ->
+ register_corruption_dummy_call(3,A,V)
+ end.
+
+
+register_corruption_dummy_call(A,B,C) -> {A,B,C}.
t_frequency_table(Config) when is_list(Config) ->
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-19 07:50:42 +0000