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-rw-r--r--lib/hipe/test/bs_SUITE_data/bs_potpurri.erl200
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diff --git a/lib/hipe/test/bs_SUITE_data/bs_potpurri.erl b/lib/hipe/test/bs_SUITE_data/bs_potpurri.erl
new file mode 100644
index 0000000000..8bc4fe5c88
--- /dev/null
+++ b/lib/hipe/test/bs_SUITE_data/bs_potpurri.erl
@@ -0,0 +1,200 @@
+%%% -*- erlang-indent-level: 2 -*-
+%%%-------------------------------------------------------------------
+-module(bs_potpurri).
+
+-export([test/0]).
+
+test() ->
+ ok = integer(),
+ ok = signed_integer(),
+ ok = dynamic(),
+ ok = more_dynamic(),
+ ok = mml(),
+ ok.
+
+%% compile(Opts0) ->
+%% case proplists:get_bool(core, Opts0) of
+%% true ->
+%% test:note(?MODULE, "disabling compilation from core - BUG"),
+%% Opts = [{core,false}|Opts0];
+%% false ->
+%% Opts = Opts0
+%% end,
+%% hipe:c(?MODULE, Opts).
+
+integer() ->
+ 0 = get_int(mkbin([])),
+ 0 = get_int(mkbin([0])),
+ 42 = get_int(mkbin([42])),
+ 255 = get_int(mkbin([255])),
+ 256 = get_int(mkbin([1,0])),
+ 257 = get_int(mkbin([1,1])),
+ 258 = get_int(mkbin([1,2])),
+ 258 = get_int(mkbin([1,2])),
+ 65534 = get_int(mkbin([255,254])),
+ 16776455 = get_int(mkbin([255,253,7])),
+ 4245492555 = get_int(mkbin([253,13,19,75])),
+ L = [200,1,19,128,222,42,97,111,200,1,19,128,222,42,97,111],
+ ok = cmp128(mkbin(L), uint(L)),
+ ok = fun_clause(catch get_int(mkbin(lists:seq(1,5)))),
+ ok.
+
+get_int(<<I:0>>) -> I;
+get_int(<<I:8>>) -> I;
+get_int(<<I:16>>) -> I;
+get_int(<<I:24>>) -> I;
+get_int(<<I:32>>) -> I.
+
+cmp128(<<I:128>>, I) -> ok;
+cmp128(_Bin, _I) -> not_ok.
+
+signed_integer() ->
+ {no_match,_} = sint(mkbin([])),
+ {no_match,_} = sint(mkbin([1,2,3])),
+ 127 = sint(mkbin([127])),
+ -1 = sint(mkbin([255])),
+ -128 = sint(mkbin([128])),
+ 42 = sint(mkbin([42,255])),
+ 127 = sint(mkbin([127,255])),
+ ok.
+
+sint(Bin) ->
+ case Bin of
+ <<I:8/signed>> -> I;
+ <<I:8/signed,_:3,_:5>> -> I;
+ Other -> {no_match,Other}
+ end.
+
+uint(L) -> uint(L, 0).
+
+uint([H|T], Acc) -> uint(T, Acc bsl 8 bor H);
+uint([], Acc) -> Acc.
+
+dynamic() ->
+ ok = dynamic(mkbin([255]), 8),
+ ok = dynamic(mkbin([255,255]), 16),
+ ok = dynamic(mkbin([255,255,255]), 24),
+ ok = dynamic(mkbin([255,255,255,255]), 32),
+ ok.
+
+dynamic(Bin, S1) when S1 >= 0 ->
+ S2 = bit_size(Bin) - S1,
+ dynamic(Bin, S1, S2, (1 bsl S1) - 1, (1 bsl S2) - 1),
+ dynamic(Bin, S1-1);
+dynamic(_Bin, _) -> ok.
+
+dynamic(Bin, S1, S2, A, B) ->
+ %% io:format("~p ~p ~p ~p\n", [S1,S2,A,B]),
+ case Bin of
+ <<A:S1,B:S2>> ->
+ %% io:format("~p ~p ~p ~p\n", [S1,S2,A,B]),
+ ok;
+ <<A1:S1,B2:S2>> -> erlang:error(badmatch, [Bin,S1,S2,A,B,A1,B2])
+ end.
+
+more_dynamic() ->
+ %% Unsigned big-endian numbers.
+ Unsigned = fun(Bin, List, SkipBef, N) ->
+ SkipAft = bit_size(Bin) - N - SkipBef,
+ <<_I1:SkipBef,Int:N,_I2:SkipAft>> = Bin,
+ Int = make_int(List, N, 0)
+ end,
+ ok = more_dynamic1(Unsigned, funny_binary(42)),
+
+ %% Signed big-endian numbers.
+ Signed = fun(Bin, List, SkipBef, N) ->
+ SkipAft = bit_size(Bin) - N - SkipBef,
+ <<_I1:SkipBef,Int:N/signed,_I2:SkipAft>> = Bin,
+ case make_signed_int(List, N) of
+ Int -> ok;
+ Other ->
+ io:format("Bin = ~p,", [Bin]),
+ io:format("SkipBef = ~p, N = ~p", [SkipBef,N]),
+ io:format("Expected ~p, got ~p", [Int,Other]),
+ exit(Other)
+ end
+ end,
+ ok = more_dynamic1(Signed, funny_binary(43)),
+
+ %% Unsigned little-endian numbers.
+ UnsLittle = fun(Bin, List, SkipBef, N) ->
+ SkipAft = bit_size(Bin) - N - SkipBef,
+ <<_I1:SkipBef,Int:N/little,_I2:SkipAft>> = Bin,
+ Int = make_int(big_to_little(List, N), N, 0)
+ end,
+ more_dynamic1(UnsLittle, funny_binary(44)),
+
+ %% Signed little-endian numbers.
+ SignLittle = fun(Bin, List, SkipBef, N) ->
+ SkipAft = bit_size(Bin) - N - SkipBef,
+ <<_I1:SkipBef,Int:N/signed-little,_I2:SkipAft>> = Bin,
+ Little = big_to_little(List, N),
+ Int = make_signed_int(Little, N)
+ end,
+ ok = more_dynamic1(SignLittle, funny_binary(45)),
+
+ ok.
+
+funny_binary(N) ->
+ B0 = erlang:md5([N]),
+ {B1,_B2} = split_binary(B0, byte_size(B0) div 2),
+ B1.
+
+more_dynamic1(Action, Bin) ->
+ BitList = bits_to_list(binary_to_list(Bin), 16#80),
+ more_dynamic2(Action, Bin, BitList, 0).
+
+more_dynamic2(Action, Bin, [_|T]=List, Bef) ->
+ more_dynamic3(Action, Bin, List, Bef, bit_size(Bin)),
+ more_dynamic2(Action, Bin, T, Bef+1);
+more_dynamic2(_Action, _Bin, [], _Bef) -> ok.
+
+more_dynamic3(Action, Bin, List, Bef, Aft) when Bef =< Aft ->
+ %% io:format("~p, ~p", [Bef,Aft-Bef]),
+ Action(Bin, List, Bef, Aft-Bef),
+ more_dynamic3(Action, Bin, List, Bef, Aft-1);
+more_dynamic3(_, _, _, _, _) -> ok.
+
+big_to_little(List, N) -> big_to_little(List, N, []).
+
+big_to_little([B0,B1,B2,B3,B4,B5,B6,B7|T], N, Acc) when N >= 8 ->
+ big_to_little(T, N-8, [B0,B1,B2,B3,B4,B5,B6,B7|Acc]);
+big_to_little(List, N, Acc) -> lists:sublist(List, 1, N) ++ Acc.
+
+make_signed_int(_List, 0) -> 0;
+make_signed_int([0|_]=List, N) -> make_int(List, N, 0);
+make_signed_int([1|_]=List0, N) ->
+ List1 = reversed_sublist(List0, N, []),
+ List2 = two_complement_and_reverse(List1, 1, []),
+ -make_int(List2, length(List2), 0).
+
+reversed_sublist(_List, 0, Acc) -> Acc;
+reversed_sublist([H|T], N, Acc) -> reversed_sublist(T, N-1, [H|Acc]).
+
+two_complement_and_reverse([H|T], Carry, Acc) ->
+ Sum = 1 - H + Carry,
+ two_complement_and_reverse(T, Sum div 2, [Sum rem 2|Acc]);
+two_complement_and_reverse([], Carry, Acc) -> [Carry|Acc].
+
+make_int(_List, 0, Acc) -> Acc;
+make_int([H|T], N, Acc) -> make_int(T, N-1, Acc bsl 1 bor H).
+
+bits_to_list([_|T], 0) -> bits_to_list(T, 16#80);
+bits_to_list([H|_]=List, Mask) ->
+ [case H band Mask of
+ 0 -> 0;
+ _ -> 1
+ end|bits_to_list(List, Mask bsr 1)];
+bits_to_list([], _) -> [].
+
+fun_clause({'EXIT',{function_clause,_}}) -> ok.
+
+mkbin(L) when is_list(L) -> list_to_binary(L).
+
+mml() ->
+ single_byte_binary = mml_choose(<<42>>),
+ multi_byte_binary = mml_choose(<<42,43>>),
+ ok.
+
+mml_choose(<<_:8>>) -> single_byte_binary;
+mml_choose(<<_:8, _T/binary>>) -> multi_byte_binary.