diff options
Diffstat (limited to 'lib/compiler/test/guard_SUITE.erl')
| -rw-r--r-- | lib/compiler/test/guard_SUITE.erl | 153 |
1 files changed, 151 insertions, 2 deletions
diff --git a/lib/compiler/test/guard_SUITE.erl b/lib/compiler/test/guard_SUITE.erl index 11d4038b06..a662d85272 100644 --- a/lib/compiler/test/guard_SUITE.erl +++ b/lib/compiler/test/guard_SUITE.erl @@ -35,7 +35,7 @@ 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, - guard_in_catch/1]). + guard_in_catch/1,beam_bool_SUITE/1]). suite() -> [{ct_hooks,[ts_install_cth]}]. @@ -54,7 +54,7 @@ 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,guard_in_catch]}]. + bad_constants,bad_guards,guard_in_catch,beam_bool_SUITE]}]. init_per_suite(Config) -> Config. @@ -2050,6 +2050,155 @@ do_guard_in_catch_bin(From) -> saint end. +%%% +%%% The beam_bool pass has been eliminated. Here are the tests from +%%% beam_bool_SUITE. +%%% + +beam_bool_SUITE(_Config) -> + before_and_inside_if(), + scotland(), + y_registers(), + protected(), + maps(), + ok. + +before_and_inside_if() -> + no = before_and_inside_if([a], [b], delete), + no = before_and_inside_if([a], [b], x), + no = before_and_inside_if([a], [], delete), + no = before_and_inside_if([a], [], x), + no = before_and_inside_if([], [], delete), + yes = before_and_inside_if([], [], x), + yes = before_and_inside_if([], [b], delete), + yes = before_and_inside_if([], [b], x), + + {ch1,ch2} = before_and_inside_if_2([a], [b], blah), + {ch1,ch2} = before_and_inside_if_2([a], [b], xx), + {ch1,ch2} = before_and_inside_if_2([a], [], blah), + {ch1,ch2} = before_and_inside_if_2([a], [], xx), + {no,no} = before_and_inside_if_2([], [b], blah), + {no,no} = before_and_inside_if_2([], [b], xx), + {ch1,no} = before_and_inside_if_2([], [], blah), + {no,ch2} = before_and_inside_if_2([], [], xx), + ok. + +%% Thanks to Simon Cornish and Kostis Sagonas. +%% Used to crash beam_bool. +before_and_inside_if(XDo1, XDo2, Do3) -> + Do1 = (XDo1 =/= []), + Do2 = (XDo2 =/= []), + if + %% This expression occurs in a try/catch (protected) + %% block, which cannot refer to variables outside of + %% the block that are boolean expressions. + Do1 =:= true; + Do1 =:= false, Do2 =:= false, Do3 =:= delete -> + no; + true -> + yes + end. + +%% Thanks to Simon Cornish. +%% Used to generate code that would not set {y,0} on +%% all paths before its use (and therefore fail +%% validation by the beam_validator). +before_and_inside_if_2(XDo1, XDo2, Do3) -> + Do1 = (XDo1 =/= []), + Do2 = (XDo2 =/= []), + CH1 = if Do1 == true; + Do1 == false,Do2==false,Do3 == blah -> + ch1; + true -> + no + end, + CH2 = if Do1 == true; + Do1 == false,Do2==false,Do3 == xx -> + ch2; + true -> + no + end, + {CH1,CH2}. + + +%% beam_bool would remove the initialization of {y,0}. +%% (Thanks to Thomas Arts and QuickCheck.) + +scotland() -> + 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. + + +%% ERL-143: beam_bool could not handle Y registers as a destination. +y_registers() -> + {'EXIT',{badarith,[_|_]}} = (catch baker(valentine)), + {'EXIT',{badarith,[_|_]}} = (catch baker(clementine)), + + {not_ok,true} = potter([]), + {ok,false} = potter([{encoding,any}]), + + ok. + +%% Thanks to Quickcheck. +baker(Baker) -> + (valentine == Baker) + + case Baker of + Baker when Baker; Baker -> + Baker; + Baker -> + [] + end. + +%% Thanks to Jose Valim. +potter(Modes) -> + Raw = lists:keyfind(encoding, 1, Modes) == false, + Final = case Raw of + X when X == false; X == nil -> ok; + _ -> not_ok + end, + {Final,Raw}. + +protected() -> + {'EXIT',{if_clause,_}} = (catch photographs({1, surprise, true}, opinions)), + + {{true}} = welcome({perfect, true}), + {'EXIT',{if_clause,_}} = (catch welcome({perfect, false})), + ok. + +photographs({_Violation, surprise, Deep}, opinions) -> + {if + 0; "here", Deep -> + Deep = Deep + end}. + +welcome({perfect, Profit}) -> + if + Profit, Profit, Profit; 0 -> + {id({Profit})} + end. + +maps() -> + ok = evidence(#{0 => 42}). + +%% Cover handling of put_map in in split_block_label_used/2. +evidence(#{0 := Charge}) when 0; #{[] => Charge} == #{[] => 42} -> + ok. + + %% Call this function to turn off constant propagation. id(I) -> I. |