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-rw-r--r--lib/compiler/test/beam_bool_SUITE.erl197
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diff --git a/lib/compiler/test/beam_bool_SUITE.erl b/lib/compiler/test/beam_bool_SUITE.erl
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-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2015-2016. All Rights Reserved.
-%%
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%% http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%%
-%% %CopyrightEnd%
-%%
--module(beam_bool_SUITE).
-
--export([all/0,suite/0,groups/0,init_per_suite/1,end_per_suite/1,
- init_per_group/2,end_per_group/2,
- before_and_inside_if/1,
- scotland/1,y_registers/1,protected/1,
- maps/1]).
-
-suite() ->
- [{ct_hooks,[ts_install_cth]}].
-
-all() ->
- test_lib:recompile(?MODULE),
- [{group,p}].
-
-groups() ->
- [{p,[parallel],
- [before_and_inside_if,
- scotland,
- y_registers,
- protected,
- maps
- ]}].
-
-init_per_suite(Config) ->
- Config.
-
-end_per_suite(_Config) ->
- ok.
-
-init_per_group(_GroupName, Config) ->
- Config.
-
-end_per_group(_GroupName, Config) ->
- Config.
-
-before_and_inside_if(_Config) ->
- 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(_Config) ->
- 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(_Config) ->
- {'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(_Config) ->
- {'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(_Config) ->
- ok = evidence(#{0 => 42}).
-
-%% Cover handling of put_map in in split_block_label_used/2.
-evidence(#{0 := Charge}) when 0; #{[] => Charge} == #{[] => 42} ->
- ok.
-
-
-%%%
-%%% Common utilities.
-%%%
-
-id(I) ->
- I.