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-rw-r--r--lib/compiler/test/warnings_SUITE.erl84
1 files changed, 52 insertions, 32 deletions
diff --git a/lib/compiler/test/warnings_SUITE.erl b/lib/compiler/test/warnings_SUITE.erl
index 33d55996ad..70b7100451 100644
--- a/lib/compiler/test/warnings_SUITE.erl
+++ b/lib/compiler/test/warnings_SUITE.erl
@@ -42,7 +42,7 @@
comprehensions/1,maps/1,maps_bin_opt_info/1,
redundant_boolean_clauses/1,
latin1_fallback/1,underscore/1,no_warnings/1,
- bit_syntax/1,inlining/1]).
+ bit_syntax/1,inlining/1,tuple_calls/1]).
init_per_testcase(_Case, Config) ->
Config.
@@ -64,7 +64,8 @@ groups() ->
bin_opt_info,bin_construction,comprehensions,maps,
maps_bin_opt_info,
redundant_boolean_clauses,latin1_fallback,
- underscore,no_warnings,bit_syntax,inlining]}].
+ underscore,no_warnings,bit_syntax,inlining,
+ tuple_calls]}].
init_per_suite(Config) ->
test_lib:recompile(?MODULE),
@@ -239,19 +240,7 @@ guard(Config) when is_list(Config) ->
{4,sys_core_fold,nomatch_guard},
{6,sys_core_fold,no_clause_match},
{6,sys_core_fold,nomatch_guard},
- {6,sys_core_fold,{eval_failure,badarg}},
- {8,sys_core_fold,no_clause_match},
- {8,sys_core_fold,nomatch_guard},
- {8,sys_core_fold,{eval_failure,badarg}},
- {9,sys_core_fold,no_clause_match},
- {9,sys_core_fold,nomatch_guard},
- {9,sys_core_fold,{eval_failure,badarg}},
- {10,sys_core_fold,no_clause_match},
- {10,sys_core_fold,nomatch_guard},
- {10,sys_core_fold,{eval_failure,badarg}},
- {11,sys_core_fold,no_clause_match},
- {11,sys_core_fold,nomatch_guard},
- {11,sys_core_fold,{eval_failure,badarg}}
+ {6,sys_core_fold,{eval_failure,badarg}}
]}}],
[] = run(Config, Ts),
@@ -522,25 +511,43 @@ bin_opt_info(Config) when is_list(Config) ->
<<>> -> ok
end.
+ %% We use a tail in a BIF instruction, remote call, function
+ %% return, and an optimizable tail call for better coverage.
+ t2(<<A,B,T/bytes>>) ->
+ if
+ A > B -> t2(T);
+ A =< B -> T
+ end;
+ t2(<<_,T/bytes>>) when byte_size(T) < 4 ->
+ foo;
t2(<<_,T/bytes>>) ->
- split_binary(T, 4).
+ split_binary(T, 4).
">>,
- Ts1 = [{bsm1,
- Code,
- [bin_opt_info],
- {warnings,
- [{4,sys_core_bsm,orig_bin_var_used_in_guard},
- {5,beam_bsm,{no_bin_opt,{{t1,1},no_suitable_bs_start_match}}},
- {9,beam_bsm,{no_bin_opt,
- {binary_used_in,{extfunc,erlang,split_binary,2}}}} ]}}],
- [] = run(Config, Ts1),
+
+ Ws = (catch run_test(Config, Code, [bin_opt_info])),
+
+ %% This is an inexact match since the pass reports exact instructions as
+ %% part of the warnings, which may include annotations that vary from run
+ %% to run.
+ {warnings,
+ [{5,beam_ssa_bsm,{unsuitable_call,
+ {{b_local,{b_literal,t1},1},
+ {used_before_match,
+ {b_set,_,_,{bif,byte_size},[_]}}}}},
+ {5,beam_ssa_bsm,{binary_created,_,_}},
+ {11,beam_ssa_bsm,{binary_created,_,_}}, %% A =< B -> T
+ {13,beam_ssa_bsm,context_reused}, %% A > B -> t2(T);
+ {16,beam_ssa_bsm,{binary_created,_,_}}, %% when byte_size(T) < 4 ->
+ {19,beam_ssa_bsm,{remote_call,
+ {b_remote,
+ {b_literal,erlang},
+ {b_literal,split_binary},2}}},
+ {19,beam_ssa_bsm,{binary_created,_,_}} %% split_binary(T, 4)
+ ]} = Ws,
%% For coverage: don't give the bin_opt_info option.
- Ts2 = [{bsm2,
- Code,
- [],
- []}],
- [] = run(Config, Ts2),
+ [] = (catch run_test(Config, Code, [])),
+
ok.
bin_construction(Config) when is_list(Config) ->
@@ -746,7 +753,7 @@ maps_bin_opt_info(Config) when is_list(Config) ->
M.
">>,
[bin_opt_info],
- {warnings,[{2,beam_bsm,bin_opt}]}}],
+ {warnings,[{3,beam_ssa_bsm,context_reused}]}}],
[] = run(Config, Ts),
ok.
@@ -952,6 +959,20 @@ inlining(Config) ->
run(Config, Ts),
ok.
+tuple_calls(Config) ->
+ %% Make sure that no spurious warnings are generated.
+ Ts = [{inlining_1,
+ <<"-compile(tuple_calls).
+ dispatch(X) ->
+ (list_to_atom(\"prefix_\" ++
+ atom_to_list(suffix))):doit(X).
+ ">>,
+ [],
+ []}
+ ],
+ run(Config, Ts),
+ ok.
+
%%%
%%% End of test cases.
%%%
@@ -969,7 +990,6 @@ run(Config, Tests) ->
end,
lists:foldl(F, [], Tests).
-
%% Compiles a test module and returns the list of errors and warnings.
run_test(Conf, Test0, Warnings) ->