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-rw-r--r--lib/compiler/test/compilation_SUITE.erl6
-rw-r--r--lib/compiler/test/core_fold_SUITE.erl44
-rw-r--r--lib/compiler/test/test_lib.erl4
-rw-r--r--lib/compiler/test/trycatch_SUITE.erl1
-rw-r--r--lib/compiler/test/warnings_SUITE.erl47
5 files changed, 91 insertions, 11 deletions
diff --git a/lib/compiler/test/compilation_SUITE.erl b/lib/compiler/test/compilation_SUITE.erl
index 8711f35e8e..296774e083 100644
--- a/lib/compiler/test/compilation_SUITE.erl
+++ b/lib/compiler/test/compilation_SUITE.erl
@@ -611,12 +611,10 @@ otp_7345(Config) when is_list(Config) ->
otp_7345(ObjRef, _RdEnv, Args) ->
Cid = ObjRef#contextId.cid,
- _DpRef =
- #dpRef{cid = Cid,
+ _ = #dpRef{cid = Cid,
ms_device_context_id = cid_id,
tlli = #ptmsi{value = 0}},
- _QosProfile =
- #qosProfileBssgp{peak_bit_rate_msb = 0,
+ _ = #qosProfileBssgp{peak_bit_rate_msb = 0,
peak_bit_rate_lsb = 80,
t_a_precedence = 49},
[Cpdu|_] = Args,
diff --git a/lib/compiler/test/core_fold_SUITE.erl b/lib/compiler/test/core_fold_SUITE.erl
index 1358e002e2..40a5ba2b17 100644
--- a/lib/compiler/test/core_fold_SUITE.erl
+++ b/lib/compiler/test/core_fold_SUITE.erl
@@ -23,7 +23,8 @@
t_element/1,setelement/1,t_length/1,append/1,t_apply/1,bifs/1,
eq/1,nested_call_in_case/1,guard_try_catch/1,coverage/1,
unused_multiple_values_error/1,unused_multiple_values/1,
- multiple_aliases/1,redundant_boolean_clauses/1,mixed_matching_clauses/1]).
+ multiple_aliases/1,redundant_boolean_clauses/1,
+ mixed_matching_clauses/1,unnecessary_building/1]).
-export([foo/0,foo/1,foo/2,foo/3]).
@@ -40,7 +41,8 @@ groups() ->
[t_element,setelement,t_length,append,t_apply,bifs,
eq,nested_call_in_case,guard_try_catch,coverage,
unused_multiple_values_error,unused_multiple_values,
- multiple_aliases,redundant_boolean_clauses,mixed_matching_clauses]}].
+ multiple_aliases,redundant_boolean_clauses,
+ mixed_matching_clauses,unnecessary_building]}].
init_per_suite(Config) ->
@@ -252,6 +254,8 @@ do_guard_try_catch(K, V) ->
false
end.
+-record(cover_opt_guard_try, {list=[]}).
+
coverage(Config) when is_list(Config) ->
?line {'EXIT',{{case_clause,{a,b,c}},_}} =
(catch cover_will_match_list_type({a,b,c})),
@@ -261,6 +265,9 @@ coverage(Config) when is_list(Config) ->
?line error = cover_will_match_lit_list(),
{ok,[a]} = cover_is_safe_bool_expr(a),
+ ok = cover_opt_guard_try(#cover_opt_guard_try{list=[a]}),
+ error = cover_opt_guard_try(#cover_opt_guard_try{list=[]}),
+
%% Make sure that we don't attempt to make literals
%% out of pids. (Putting a pid into a #c_literal{}
%% would crash later compiler passes.)
@@ -314,6 +321,14 @@ cover_is_safe_bool_expr(X) ->
false
end.
+cover_opt_guard_try(Msg) ->
+ if
+ length(Msg#cover_opt_guard_try.list) =/= 1 ->
+ error;
+ true ->
+ ok
+ end.
+
bsm_an_inlined(<<_:8>>, _) -> ok;
bsm_an_inlined(_, _) -> error.
@@ -400,4 +415,29 @@ mixed_matching_clauses(Config) when is_list(Config) ->
end,
ok.
+unnecessary_building(Config) when is_list(Config) ->
+ Term1 = do_unnecessary_building_1(test_lib:id(a)),
+ [{a,a},{a,a}] = Term1,
+ 7 = erts_debug:size(Term1),
+
+ %% The Input term should not be rebuilt (thus, it should
+ %% only be counted once in the size of the combined term).
+ Input = test_lib:id({a,b,c}),
+ Term2 = test_lib:id(do_unnecessary_building_2(Input)),
+ {b,[{a,b,c},none],x} = Term2,
+ 4+4+4+2 = erts_debug:size([Term2|Input]),
+
+ ok.
+
+do_unnecessary_building_1(S) ->
+ %% The tuple must only be built once.
+ F0 = F1 = {S,S},
+ [F0,F1].
+
+do_unnecessary_building_2({a,_,_}=T) ->
+ %% The T term should not be rebuilt.
+ {b,
+ [_,_] = [T,none],
+ x}.
+
id(I) -> I.
diff --git a/lib/compiler/test/test_lib.erl b/lib/compiler/test/test_lib.erl
index e06e42276a..e8f469c5b4 100644
--- a/lib/compiler/test/test_lib.erl
+++ b/lib/compiler/test/test_lib.erl
@@ -20,9 +20,11 @@
-include("test_server.hrl").
-compile({no_auto_import,[binary_part/2]}).
--export([recompile/1,parallel/0,uniq/0,opt_opts/1,get_data_dir/1,
+-export([id/1,recompile/1,parallel/0,uniq/0,opt_opts/1,get_data_dir/1,
smoke_disasm/1,p_run/2,binary_part/2]).
+id(I) -> I.
+
recompile(Mod) when is_atom(Mod) ->
case whereis(cover_server) of
undefined -> ok;
diff --git a/lib/compiler/test/trycatch_SUITE.erl b/lib/compiler/test/trycatch_SUITE.erl
index b490257a6e..8ab618bb01 100644
--- a/lib/compiler/test/trycatch_SUITE.erl
+++ b/lib/compiler/test/trycatch_SUITE.erl
@@ -790,7 +790,6 @@ nested_after_1({X1,C1,V1},
nested_horrid(Config) when is_list(Config) ->
- _V = {make_ref(),nested_horrid,4.711},
{[true,true],{[true,1.0],1.0}} =
nested_horrid_1({true,void,void}, 1.0),
ok.
diff --git a/lib/compiler/test/warnings_SUITE.erl b/lib/compiler/test/warnings_SUITE.erl
index 6e5a7d35e9..6663985ad7 100644
--- a/lib/compiler/test/warnings_SUITE.erl
+++ b/lib/compiler/test/warnings_SUITE.erl
@@ -39,7 +39,7 @@
guard/1,bad_arith/1,bool_cases/1,bad_apply/1,
files/1,effect/1,bin_opt_info/1,bin_construction/1,
comprehensions/1,maps/1,redundant_boolean_clauses/1,
- latin1_fallback/1]).
+ latin1_fallback/1,underscore/1]).
% Default timetrap timeout (set in init_per_testcase).
-define(default_timeout, ?t:minutes(2)).
@@ -64,7 +64,8 @@ groups() ->
[pattern,pattern2,pattern3,pattern4,guard,
bad_arith,bool_cases,bad_apply,files,effect,
bin_opt_info,bin_construction,comprehensions,maps,
- redundant_boolean_clauses,latin1_fallback]}].
+ redundant_boolean_clauses,latin1_fallback,
+ underscore]}].
init_per_suite(Config) ->
Config.
@@ -280,11 +281,12 @@ bad_arith(Config) when is_list(Config) ->
{3,sys_core_fold,{eval_failure,badarith}},
{9,sys_core_fold,nomatch_guard},
{9,sys_core_fold,{eval_failure,badarith}},
+ {9,sys_core_fold,{no_effect,{erlang,is_integer,1}}},
{10,sys_core_fold,nomatch_guard},
{10,sys_core_fold,{eval_failure,badarith}},
{15,sys_core_fold,{eval_failure,badarith}}
] }}],
- ?line [] = run(Config, Ts),
+ [] = run(Config, Ts),
ok.
bool_cases(Config) when is_list(Config) ->
@@ -678,6 +680,45 @@ latin1_fallback(Conf) when is_list(Conf) ->
ok.
+underscore(Config) when is_list(Config) ->
+ S0 = <<"f(A) ->
+ _VAR1 = <<A>>,
+ _VAR2 = {ok,A},
+ _VAR3 = [A],
+ ok.
+ g(A) ->
+ _VAR1 = A/0,
+ _VAR2 = date(),
+ ok.
+ h() ->
+ _VAR1 = fun() -> ok end,
+ ok.
+ i(A) ->
+ _VAR1 = #{A=>42},
+ ok.
+ ">>,
+ Ts0 = [{underscore0,
+ S0,
+ [],
+ {warnings,[{2,sys_core_fold,useless_building},
+ {3,sys_core_fold,useless_building},
+ {4,sys_core_fold,useless_building},
+ {7,sys_core_fold,result_ignored},
+ {8,sys_core_fold,{no_effect,{erlang,date,0}}},
+ {11,sys_core_fold,useless_building},
+ {14,sys_core_fold,useless_building}
+ ]}}],
+ [] = run(Config, Ts0),
+
+ %% Replace all "_VAR<digit>" variables with a plain underscore.
+ %% Now there should be no warnings.
+ S1 = re:replace(S0, "_VAR\\d+", "_", [global]),
+ io:format("~s\n", [S1]),
+ Ts1 = [{underscore1,S1,[],[]}],
+ [] = run(Config, Ts1),
+
+ ok.
+
%%%
%%% End of test cases.
%%%
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 14:38:14 +0000