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authorBjörn Gustavsson <[email protected]>2016-05-31 07:25:38 +0200
committerBjörn Gustavsson <[email protected]>2016-05-31 13:07:06 +0200
commit846b84ade6be42043ed2c3aa6a1938ea094a40c3 (patch)
tree14e92edfe65c8592b7b815b204d690a1ef686798 /lib/compiler
parentb6e4235b7ce8851fdd37ba7308d2e58d8b996fd6 (diff)
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Add additional coverage and smoke test of beam_validator
Diffstat (limited to 'lib/compiler')
-rw-r--r--lib/compiler/test/beam_validator_SUITE.erl120
1 files changed, 118 insertions, 2 deletions
diff --git a/lib/compiler/test/beam_validator_SUITE.erl b/lib/compiler/test/beam_validator_SUITE.erl
index 7c4e88ca3e..263fd2ca7e 100644
--- a/lib/compiler/test/beam_validator_SUITE.erl
+++ b/lib/compiler/test/beam_validator_SUITE.erl
@@ -32,7 +32,7 @@
bad_bin_match/1,bad_dsetel/1,
state_after_fault_in_catch/1,no_exception_in_catch/1,
undef_label/1,illegal_instruction/1,failing_gc_guard_bif/1,
- map_field_lists/1]).
+ map_field_lists/1,cover_bin_opt/1]).
-include_lib("common_test/include/ct.hrl").
@@ -60,7 +60,7 @@ groups() ->
freg_state,bad_bin_match,bad_dsetel,
state_after_fault_in_catch,no_exception_in_catch,
undef_label,illegal_instruction,failing_gc_guard_bif,
- map_field_lists]}].
+ map_field_lists,cover_bin_opt]}].
init_per_suite(Config) ->
Config.
@@ -406,8 +406,124 @@ map_field_lists(Config) ->
empty_field_list}}
] = Errors.
+%% Coverage and smoke test of beam_validator.
+cover_bin_opt(_Config) ->
+ Ms = [beam_utils_SUITE,
+ bs_match_SUITE,
+ bs_bincomp_SUITE,
+ bs_bit_binaries_SUITE,
+ bs_utf_SUITE],
+ test_lib:p_run(fun try_bin_opt/1, Ms),
+ ok.
+
+try_bin_opt(Mod) ->
+ try
+ do_bin_opt(Mod)
+ catch
+ Class:Error ->
+ io:format("~p: ~p ~p\n~p\n",
+ [Mod,Class,Error,erlang:get_stacktrace()]),
+ error
+ end.
+
+do_bin_opt(Mod) ->
+ Beam = code:which(Mod),
+ {ok,{Mod,[{abstract_code,
+ {raw_abstract_v1,Abstr}}]}} =
+ beam_lib:chunks(Beam, [abstract_code]),
+ {ok,Mod,Asm} = compile:forms(Abstr, ['S']),
+ do_bin_opt(Mod, Asm).
+
+do_bin_opt(Mod, Asm) ->
+ do_bin_opt(fun enable_bin_opt/1, Mod, Asm),
+ do_bin_opt(fun remove_bs_start_match/1, Mod, Asm),
+ do_bin_opt(fun remove_bs_save/1, Mod, Asm),
+ do_bin_opt(fun destroy_ctxt/1, Mod, Asm),
+ do_bin_opt(fun destroy_save_point/1, Mod, Asm),
+ ok.
+
+do_bin_opt(Transform, Mod, Asm0) ->
+ Asm = Transform(Asm0),
+ case compile:forms(Asm, [from_asm,no_postopt,return]) of
+ {ok,[],Code,_Warnings} when is_binary(Code) ->
+ ok;
+ {error,Errors0,_} ->
+ %% beam_validator must return errors, not simply crash,
+ %% when illegal code is found.
+ ModString = atom_to_list(Mod),
+ [{ModString,Errors}] = Errors0,
+ _ = [verify_bin_opt_error(E) || E <- Errors],
+ ok
+ end.
+
+verify_bin_opt_error({beam_validator,_}) ->
+ ok.
+
+enable_bin_opt(Module) ->
+ transform_is(fun enable_bin_opt_body/1, Module).
+
+enable_bin_opt_body([_,{'%',{no_bin_opt,_Reason,_Anno}}|Is]) ->
+ enable_bin_opt_body(Is);
+enable_bin_opt_body([I|Is]) ->
+ [I|enable_bin_opt_body(Is)];
+enable_bin_opt_body([]) ->
+ [].
+
+remove_bs_start_match(Module) ->
+ transform_remove(fun({test,bs_start_match2,_,_,_,_}) -> true;
+ (_) -> false
+ end, Module).
+
+remove_bs_save(Module) ->
+ transform_remove(fun({bs_save2,_,_}) -> true;
+ (_) -> false
+ end, Module).
+
+destroy_save_point(Module) ->
+ transform_i(fun do_destroy_save_point/1, Module).
+
+do_destroy_save_point({I,Ctx,_Point})
+ when I =:= bs_save2; I =:= bs_restore2 ->
+ {I,Ctx,42};
+do_destroy_save_point(I) ->
+ I.
+
+destroy_ctxt(Module) ->
+ transform_i(fun do_destroy_ctxt/1, Module).
+
+do_destroy_ctxt({bs_save2=I,Ctx,Point}) ->
+ {I,destroy_reg(Ctx),Point};
+do_destroy_ctxt({bs_restore2=I,Ctx,Point}) ->
+ {I,destroy_reg(Ctx),Point};
+do_destroy_ctxt({bs_context_to_binary=I,Ctx}) ->
+ {I,destroy_reg(Ctx)};
+do_destroy_ctxt(I) ->
+ I.
+
+destroy_reg({Tag,N}) ->
+ case rand:uniform() of
+ R when R < 0.6 ->
+ {Tag,N+1};
+ _ ->
+ {y,N+1}
+ end.
+
%%%-------------------------------------------------------------------------
+transform_remove(Remove, Module) ->
+ transform_is(fun(Is) -> [I || I <- Is, not Remove(I)] end, Module).
+
+transform_i(Transform, Module) ->
+ transform_is(fun(Is) -> [Transform(I) || I <- Is] end, Module).
+
+transform_is(Transform, {Mod,Exp,Imp,Fs0,Lc}) ->
+ Fs = [transform_is_1(Transform, F) || F <- Fs0],
+ {Mod,Exp,Imp,Fs,Lc}.
+
+transform_is_1(Transform, {function,N,A,E,Is0}) ->
+ Is = Transform(Is0),
+ {function,N,A,E,Is}.
+
do_val(Mod, Config) ->
Data = proplists:get_value(data_dir, Config),
Base = atom_to_list(Mod),