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-rw-r--r--lib/compiler/test/beam_ssa_SUITE.erl185
1 files changed, 183 insertions, 2 deletions
diff --git a/lib/compiler/test/beam_ssa_SUITE.erl b/lib/compiler/test/beam_ssa_SUITE.erl
index 0356c99c5a..5536abbdde 100644
--- a/lib/compiler/test/beam_ssa_SUITE.erl
+++ b/lib/compiler/test/beam_ssa_SUITE.erl
@@ -21,7 +21,8 @@
-export([all/0,suite/0,groups/0,init_per_suite/1,end_per_suite/1,
init_per_group/2,end_per_group/2,
- calls/1,tuple_matching/1,recv/1,maps/1]).
+ calls/1,tuple_matching/1,recv/1,maps/1,
+ cover_ssa_dead/1,combine_sw/1]).
suite() -> [{ct_hooks,[ts_install_cth]}].
@@ -33,7 +34,9 @@ groups() ->
[tuple_matching,
calls,
recv,
- maps
+ maps,
+ cover_ssa_dead,
+ combine_sw
]}].
init_per_suite(Config) ->
@@ -286,5 +289,183 @@ maps_1(K) ->
#{K:=V} = #{},
V.
+-record(wx_ref, {type=any_type,ref=any_ref}).
+
+cover_ssa_dead(_Config) ->
+ str = format_str(str, escapable, [], true),
+ [iolist,str] = format_str(str, escapable, iolist, true),
+ bad = format_str(str, not_escapable, [], true),
+ bad = format_str(str, not_escapable, iolist, true),
+ bad = format_str(str, escapable, [], false),
+ bad = format_str(str, escapable, [], bad),
+
+ DefWxRef = #wx_ref{},
+ {DefWxRef,77,9999,[]} = contains(#wx_ref{}, 77, 9999),
+ {DefWxRef,77.0,9999,[]} = contains(#wx_ref{}, 77.0, 9999),
+ {DefWxRef,77,9999.0,[]} = contains(#wx_ref{}, 77, 9999.0),
+ {DefWxRef,77.0,9999.0,[]} = contains(#wx_ref{}, 77.0, 9999.0),
+ {any_type,any_ref,42,43,[option]} = contains(#wx_ref{}, {42,43}, [option]),
+ {any_type,any_ref,42,43,[]} = contains(#wx_ref{}, {42,43}, []),
+ {any_type,any_ref,42.0,43,[]} = contains(#wx_ref{}, {42.0,43}, []),
+ {any_type,any_ref,42,43.0,[]} = contains(#wx_ref{}, {42,43.0}, []),
+ {any_type,any_ref,42.0,43.0,[]} = contains(#wx_ref{}, {42.0,43.0}, []),
+
+ nope = conv_alub(false, '=:='),
+ ok = conv_alub(true, '=:='),
+ ok = conv_alub(true, none),
+ error = conv_alub(false, none),
+
+ {false,false} = eval_alu(false, false, false),
+ {true,false} = eval_alu(false, false, true),
+ {false,true} = eval_alu(false, true, false),
+ {false,false} = eval_alu(false, true, true),
+ {false,true} = eval_alu(true, false, false),
+ {false,false} = eval_alu(true, false, true),
+ {true,true} = eval_alu(true, true, false),
+ {false,true} = eval_alu(true, true, true),
+
+ 100.0 = percentage(1.0, 0.0),
+ 100.0 = percentage(1, 0),
+ 0.0 = percentage(0, 0),
+ 0.0 = percentage(0.0, 0.0),
+ 40.0 = percentage(4.0, 10.0),
+ 60.0 = percentage(6, 10),
+
+ %% Cover '=:=', followed by '=/='.
+ false = 'cover__=:=__=/='(41),
+ true = 'cover__=:=__=/='(42),
+ false = 'cover__=:=__=/='(43),
+
+ %% Cover '<', followed by '=/='.
+ true = 'cover__<__=/='(41),
+ false = 'cover__<__=/='(42),
+ false = 'cover__<__=/='(43),
+
+ %% Cover '=<', followed by '=/='.
+ true = 'cover__=<__=/='(41),
+ true = 'cover__=<__=/='(42),
+ false = 'cover__=<__=/='(43),
+
+ %% Cover '>=', followed by '=/='.
+ false = 'cover__>=__=/='(41),
+ true = 'cover__>=__=/='(42),
+ true = 'cover__>=__=/='(43),
+
+ %% Cover '>', followed by '=/='.
+ false = 'cover__>__=/='(41),
+ false = 'cover__>__=/='(42),
+ true = 'cover__>__=/='(43),
+
+ ok.
+
+'cover__=:=__=/='(X) when X =:= 42 -> X =/= 43;
+'cover__=:=__=/='(_) -> false.
+
+'cover__<__=/='(X) when X < 42 -> X =/= 42;
+'cover__<__=/='(_) -> false.
+
+'cover__=<__=/='(X) when X =< 42 -> X =/= 43;
+'cover__=<__=/='(_) -> false.
+
+'cover__>=__=/='(X) when X >= 42 -> X =/= 41;
+'cover__>=__=/='(_) -> false.
+
+'cover__>__=/='(X) when X > 42 -> X =/= 42;
+'cover__>__=/='(_) -> false.
+
+format_str(Str, FormatData, IoList, EscChars) ->
+ Escapable = FormatData =:= escapable,
+ case id(Str) of
+ IoStr when Escapable, EscChars, IoList == [] ->
+ id(IoStr);
+ IoStr when Escapable, EscChars ->
+ [IoList,id(IoStr)];
+ _ ->
+ bad
+ end.
+
+contains(This, X, Y) when is_record(This, wx_ref), is_number(X), is_number(Y) ->
+ {This,X,Y,[]};
+contains(#wx_ref{type=ThisT,ref=ThisRef}, {CX,CY}, Options)
+ when is_number(CX), is_number(CY), is_list(Options) ->
+ {ThisT,ThisRef,CX,CY,Options}.
+
+conv_alub(HasDst, CmpOp) ->
+ case (not HasDst) andalso CmpOp =/= none of
+ true -> nope;
+ false ->
+ case HasDst of
+ false -> error;
+ true -> ok
+ end
+ end.
+
+eval_alu(Sign1, Sign2, N) ->
+ V = (Sign1 andalso Sign2 andalso (not N))
+ or ((not Sign1) andalso (not Sign2) andalso N),
+ C = (Sign1 andalso Sign2)
+ or ((not N) andalso (Sign1 orelse Sign2)),
+ {V,C}.
+
+percentage(Divident, Divisor) ->
+ if Divisor == 0 andalso Divident /= 0 ->
+ 100.0;
+ Divisor == 0 ->
+ 0.0;
+ true ->
+ Divident / Divisor * 100
+ end.
+
+combine_sw(_Config) ->
+ [a] = do_comb_sw_1(a),
+ [b,b] = do_comb_sw_1(b),
+ [c] = do_comb_sw_1(c),
+ [c] = do_comb_sw_1(c),
+ [] = do_comb_sw_1(z),
+
+ [a] = do_comb_sw_2(a),
+ [b2,b1] = do_comb_sw_2(b),
+ [c] = do_comb_sw_2(c),
+ [c] = do_comb_sw_2(c),
+ [] = do_comb_sw_2(z),
+
+ ok.
+
+do_comb_sw_1(X) ->
+ put(?MODULE, []),
+ if
+ X == a; X == b ->
+ put(?MODULE, [X|get(?MODULE)]);
+ true ->
+ ok
+ end,
+ if
+ X == b; X == c ->
+ put(?MODULE, [X|get(?MODULE)]);
+ true ->
+ ok
+ end,
+ erase(?MODULE).
+
+do_comb_sw_2(X) ->
+ put(?MODULE, []),
+ case X of
+ a ->
+ put(?MODULE, [a|get(?MODULE)]);
+ b ->
+ put(?MODULE, [b1|get(?MODULE)]);
+ _ ->
+ ok
+ end,
+ case X of
+ b ->
+ put(?MODULE, [b2|get(?MODULE)]);
+ c ->
+ put(?MODULE, [c|get(?MODULE)]);
+ _ ->
+ ok
+ end,
+ erase(?MODULE).
+
%% The identity function.
id(I) -> I.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 03:23:07 +0000