From 31652916db93c4d4c0363aae48913210a7642d0f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Thu, 31 Jan 2019 18:21:19 +0100 Subject: Remove the optimized_guard/1 test case With the new SSA code passes, the optimized_guard/1 test case has become really bad at finding unnecessary `and` and `or` instructions. --- lib/compiler/test/compile_SUITE.erl | 83 +------------------------------------ 1 file changed, 2 insertions(+), 81 deletions(-) diff --git a/lib/compiler/test/compile_SUITE.erl b/lib/compiler/test/compile_SUITE.erl index 7452466666..8b996f525d 100644 --- a/lib/compiler/test/compile_SUITE.erl +++ b/lib/compiler/test/compile_SUITE.erl @@ -33,7 +33,7 @@ other_output/1, kernel_listing/1, encrypted_abstr/1, strict_record/1, utf8_atoms/1, utf8_functions/1, extra_chunks/1, cover/1, env/1, core_pp/1, tuple_calls/1, - core_roundtrip/1, asm/1, optimized_guards/1, + core_roundtrip/1, asm/1, sys_pre_attributes/1, dialyzer/1, warnings/1, pre_load_check/1, env_compiler_options/1, bc_options/1, deterministic_include/1, deterministic_paths/1 @@ -50,7 +50,7 @@ all() -> binary, makedep, cond_and_ifdef, listings, listings_big, other_output, kernel_listing, encrypted_abstr, tuple_calls, strict_record, utf8_atoms, utf8_functions, extra_chunks, - cover, env, core_pp, core_roundtrip, asm, optimized_guards, + cover, env, core_pp, core_roundtrip, asm, sys_pre_attributes, dialyzer, warnings, pre_load_check, env_compiler_options, custom_debug_info, bc_options, custom_compile_info, deterministic_include, deterministic_paths]. @@ -1174,85 +1174,6 @@ do_asm(Beam, Outdir) -> error end. -%% Make sure that guards are fully optimized. Guards should -%% should use 'test' instructions, not 'bif' instructions. - -optimized_guards(_Config) -> - TestBeams = get_unique_beam_files(), - test_lib:p_run(fun(F) -> do_opt_guards(F) end, TestBeams). - -do_opt_guards(Beam) -> - {ok,{M,[{abstract_code,{raw_abstract_v1,A}}]}} = - beam_lib:chunks(Beam, [abstract_code]), - try - {ok,M,Asm} = compile:forms(A, ['S']), - do_opt_guards_mod(Asm) - catch Class:Error:Stk -> - io:format("~p: ~p ~p\n~p\n", [M,Class,Error,Stk]), - error - end. - -do_opt_guards_mod({Mod,_Exp,_Attr,Asm,_NumLabels}) -> - case do_opt_guards_fs(Mod, Asm) of - [] -> - ok; - [_|_]=Bifs -> - io:format("ERRORS FOR ~p:\n~p\n", [Mod,Bifs]), - error - end. - -do_opt_guards_fs(Mod, [{function,Name,Arity,_,Is}|Fs]) -> - Bifs0 = do_opt_guards_fun(Is), - - %% The compiler does not attempt to optimize 'xor'. - %% Therefore, ignore all functions that use 'xor' in - %% a guard. - Bifs = case lists:any(fun({bif,'xor',_,_,_}) -> true; - (_) -> false - end, Bifs0) of - true -> []; - false -> Bifs0 - end, - - %% Filter out the allowed exceptions. - FA = {Name,Arity}, - case {Bifs,is_exception(Mod, FA)} of - {[_|_],true} -> - io:format("~p:~p/~p IGNORED:\n~p\n", - [Mod,Name,Arity,Bifs]), - do_opt_guards_fs(Mod, Fs); - {[_|_],false} -> - [{FA,Bifs}|do_opt_guards_fs(Mod, Fs)]; - {[],false} -> - do_opt_guards_fs(Mod, Fs); - {[],true} -> - io:format("Redundant exception for ~p:~p/~p\n", - [Mod,Name,Arity]), - error(redundant) - end; -do_opt_guards_fs(_, []) -> []. - -do_opt_guards_fun([{bif,Name,{f,F},As,_}=I|Is]) when F =/= 0 -> - Arity = length(As), - case erl_internal:comp_op(Name, Arity) orelse - erl_internal:bool_op(Name, Arity) orelse - erl_internal:new_type_test(Name, Arity) of - true -> - [I|do_opt_guards_fun(Is)]; - false -> - do_opt_guards_fun(Is) - end; -do_opt_guards_fun([_|Is]) -> - do_opt_guards_fun(Is); -do_opt_guards_fun([]) -> []. - -is_exception(guard_SUITE, {'-complex_not/1-fun-4-',1}) -> true; -is_exception(guard_SUITE, {'-complex_not/1-fun-5-',1}) -> true; -is_exception(guard_SUITE, {bad_guards,1}) -> true; -is_exception(guard_SUITE, {nested_not_2b,6}) -> true; %% w/o type optimization -is_exception(guard_SUITE, {nested_not_2b,2}) -> true; %% with type optimization -is_exception(_, _) -> false. - sys_pre_attributes(Config) -> DataDir = proplists:get_value(data_dir, Config), File = filename:join(DataDir, "attributes.erl"), -- cgit v1.2.3