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-rw-r--r--lib/compiler/src/beam_bool.erl8
-rw-r--r--lib/compiler/src/v3_core.erl97
-rw-r--r--lib/compiler/test/andor_SUITE.erl15
-rw-r--r--lib/compiler/test/core_SUITE.erl5
-rw-r--r--lib/compiler/test/core_SUITE_data/bad_boolean_guard.core32
5 files changed, 109 insertions, 48 deletions
diff --git a/lib/compiler/src/beam_bool.erl b/lib/compiler/src/beam_bool.erl
index 81b6d78864..d01f9ee13d 100644
--- a/lib/compiler/src/beam_bool.erl
+++ b/lib/compiler/src/beam_bool.erl
@@ -531,7 +531,9 @@ bopt_cg({prot,Pre0,Tree}, Fail, Rs0, Acc, St0) ->
bopt_cg({atom,true}, _Fail, _Rs, Acc, St) ->
{Acc,St};
bopt_cg({atom,false}, Fail, _Rs, Acc, St) ->
- {[{jump,{f,Fail}}|Acc],St}.
+ {[{jump,{f,Fail}}|Acc],St};
+bopt_cg(_, _, _, _, _) ->
+ throw(not_boolean_expr).
bopt_cg_not({'and',As0}) ->
As = [bopt_cg_not(A) || A <- As0],
@@ -544,7 +546,9 @@ bopt_cg_not({'not',Arg}) ->
bopt_cg_not({test,Test,Fail,As}) ->
{inverted_test,Test,Fail,As};
bopt_cg_not({atom,Bool}) when is_boolean(Bool) ->
- {atom,not Bool}.
+ {atom,not Bool};
+bopt_cg_not(_) ->
+ throw(not_boolean_expr).
bopt_cg_not_not({'and',As}) ->
{'and',[bopt_cg_not_not(A) || A <- As]};
diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl
index d3db395995..9c9941d039 100644
--- a/lib/compiler/src/v3_core.erl
+++ b/lib/compiler/src/v3_core.erl
@@ -274,51 +274,67 @@ gexpr({op,L,'orelse',E1,E2}, Bools, St0) ->
True = {atom,L,true},
E = make_bool_switch_guard(L, E1, V, True, E2),
gexpr(E, Bools, St);
-gexpr({op,Line,Op,L,R}=Call, Bools0, St0) ->
+gexpr({op,Line,Op,L,R}=E, Bools, St) ->
case erl_internal:bool_op(Op, 2) of
- true ->
- {Le,Lps,Bools1,St1} = gexpr(L, Bools0, St0),
- {Ll,Llps,St2} = force_safe(Le, St1),
- {Re,Rps,Bools,St3} = gexpr(R, Bools1, St2),
- {Rl,Rlps,St4} = force_safe(Re, St3),
- Anno = lineno_anno(Line, St4),
- {#icall{anno=#a{anno=Anno}, %Must have an #a{}
- module=#c_literal{anno=Anno,val=erlang},
- name=#c_literal{anno=Anno,val=Op},
- args=[Ll,Rl]},Lps ++ Llps ++ Rps ++ Rlps,Bools,St4};
- false ->
- gexpr_test(Call, Bools0, St0)
+ true ->
+ gexpr_bool(Op, L, R, Bools, St, Line);
+ false ->
+ gexpr_test(E, Bools, St)
end;
-gexpr({op,Line,Op,A}=Call, Bools0, St0) ->
- case Op of
- 'not' ->
- {Ae0,Aps,Bools,St1} = gexpr(A, Bools0, St0),
- case Ae0 of
- #icall{module=#c_literal{val=erlang},
- name=#c_literal{val='=:='},
- args=[E,#c_literal{val=true}]}=EqCall ->
- %%
- %% Doing the following transformation
- %% not(Expr =:= true) ==> Expr =:= false
- %% will help eliminating redundant is_boolean/1 tests.
- %%
- Ae = EqCall#icall{args=[E,#c_literal{val=false}]},
- {Al,Alps,St2} = force_safe(Ae, St1),
- {Al,Aps ++ Alps,Bools,St2};
- Ae ->
- {Al,Alps,St2} = force_safe(Ae, St1),
- Anno = lineno_anno(Line, St2),
- {#icall{anno=#a{anno=Anno}, %Must have an #a{}
- module=#c_literal{anno=Anno,val=erlang},
- name=#c_literal{anno=Anno,val=Op},
- args=[Al]},Aps ++ Alps,Bools,St2}
- end;
- _ ->
- gexpr_test(Call, Bools0, St0)
+gexpr({call,Line,{remote,_,{atom,_,erlang},{atom,_,Op}},[L,R]}=E, Bools, St) ->
+ case erl_internal:bool_op(Op, 2) of
+ true ->
+ gexpr_bool(Op, L, R, Bools, St, Line);
+ false ->
+ gexpr_test(E, Bools, St)
end;
+gexpr({op,Line,'not',A}, Bools, St) ->
+ gexpr_not(A, Bools, St, Line);
+gexpr({call,Line,{remote,_,{atom,_,erlang},{atom,_,'not'}},[A]}, Bools, St) ->
+ gexpr_not(A, Bools, St, Line);
gexpr(E0, Bools, St0) ->
gexpr_test(E0, Bools, St0).
+%% gexpr_not(L, R, Bools, State) -> {Cexpr,[PreExp],Bools,State}.
+%% Generate a guard for boolean operators
+
+gexpr_bool(Op, L, R, Bools0, St0, Line) ->
+ {Le,Lps,Bools1,St1} = gexpr(L, Bools0, St0),
+ {Ll,Llps,St2} = force_safe(Le, St1),
+ {Re,Rps,Bools,St3} = gexpr(R, Bools1, St2),
+ {Rl,Rlps,St4} = force_safe(Re, St3),
+ Anno = lineno_anno(Line, St4),
+ {#icall{anno=#a{anno=Anno}, %Must have an #a{}
+ module=#c_literal{anno=Anno,val=erlang},
+ name=#c_literal{anno=Anno,val=Op},
+ args=[Ll,Rl]},Lps ++ Llps ++ Rps ++ Rlps,Bools,St4}.
+
+%% gexpr_not(Expr, Bools, State) -> {Cexpr,[PreExp],Bools,State}.
+%% Generate an erlang:'not'/1 guard test.
+
+gexpr_not(A, Bools0, St0, Line) ->
+ {Ae0,Aps,Bools,St1} = gexpr(A, Bools0, St0),
+ case Ae0 of
+ #icall{module=#c_literal{val=erlang},
+ name=#c_literal{val='=:='},
+ args=[E,#c_literal{val=true}]}=EqCall ->
+ %%
+ %% Doing the following transformation
+ %% not(Expr =:= true) ==> Expr =:= false
+ %% will help eliminating redundant is_boolean/1 tests.
+ %%
+ Ae = EqCall#icall{args=[E,#c_literal{val=false}]},
+ {Al,Alps,St2} = force_safe(Ae, St1),
+ {Al,Aps ++ Alps,Bools,St2};
+ Ae ->
+ {Al,Alps,St2} = force_safe(Ae, St1),
+ Anno = lineno_anno(Line, St2),
+ {#icall{anno=#a{anno=Anno}, %Must have an #a{}
+ module=#c_literal{anno=Anno,val=erlang},
+ name=#c_literal{anno=Anno,val='not'},
+ args=[Al]},Aps ++ Alps,Bools,St2}
+ end.
+
%% gexpr_test(Expr, Bools, State) -> {Cexpr,[PreExp],Bools,State}.
%% Generate a guard test. At this stage we must be sure that we have
%% a proper boolean value here so wrap things with an true test if we
@@ -335,7 +351,8 @@ gexpr_test(E0, Bools0, St0) ->
#icall{anno=Anno,module=#c_literal{val=erlang},name=#c_literal{val=N},args=As} ->
Ar = length(As),
case erl_internal:type_test(N, Ar) orelse
- erl_internal:comp_op(N, Ar) of
+ erl_internal:comp_op(N, Ar) orelse
+ erl_internal:bool_op(N, Ar) of
true -> {E1,Eps0,Bools0,St1};
false ->
Lanno = Anno#a.anno,
diff --git a/lib/compiler/test/andor_SUITE.erl b/lib/compiler/test/andor_SUITE.erl
index 7bef0aa27c..d79696df38 100644
--- a/lib/compiler/test/andor_SUITE.erl
+++ b/lib/compiler/test/andor_SUITE.erl
@@ -129,6 +129,10 @@ t_case_y(X, Y, Z) ->
Y =:= 100
end.
+-define(GUARD(E), if E -> true;
+ true -> false
+ end).
+
t_and_or(Config) when is_list(Config) ->
?line true = true and true,
?line false = true and false,
@@ -160,11 +164,14 @@ t_and_or(Config) when is_list(Config) ->
?line true = false or id(true),
?line false = false or id(false),
- ok.
+ True = id(true),
--define(GUARD(E), if E -> true;
- true -> false
- end).
+ false = ?GUARD(erlang:'and'(bar, True)),
+ false = ?GUARD(erlang:'or'(bar, True)),
+ false = ?GUARD(erlang:'not'(erlang:'and'(bar, True))),
+ false = ?GUARD(erlang:'not'(erlang:'not'(erlang:'and'(bar, True)))),
+
+ ok.
t_andalso(Config) when is_list(Config) ->
Bs = [true,false],
diff --git a/lib/compiler/test/core_SUITE.erl b/lib/compiler/test/core_SUITE.erl
index aa222c48de..428ad65364 100644
--- a/lib/compiler/test/core_SUITE.erl
+++ b/lib/compiler/test/core_SUITE.erl
@@ -24,7 +24,7 @@
dehydrated_itracer/1,nested_tries/1,
seq_in_guard/1,make_effect_seq/1,eval_is_boolean/1,
unsafe_case/1,nomatch_shadow/1,reversed_annos/1,
- map_core_test/1,eval_case/1]).
+ map_core_test/1,eval_case/1,bad_boolean_guard/1]).
-include_lib("test_server/include/test_server.hrl").
@@ -50,7 +50,7 @@ groups() ->
[{p,test_lib:parallel(),
[dehydrated_itracer,nested_tries,seq_in_guard,make_effect_seq,
eval_is_boolean,unsafe_case,nomatch_shadow,reversed_annos,
- map_core_test,eval_case
+ map_core_test,eval_case,bad_boolean_guard
]}].
@@ -77,6 +77,7 @@ end_per_group(_GroupName, Config) ->
?comp(reversed_annos).
?comp(map_core_test).
?comp(eval_case).
+?comp(bad_boolean_guard).
try_it(Mod, Conf) ->
Src = filename:join(?config(data_dir, Conf), atom_to_list(Mod)),
diff --git a/lib/compiler/test/core_SUITE_data/bad_boolean_guard.core b/lib/compiler/test/core_SUITE_data/bad_boolean_guard.core
new file mode 100644
index 0000000000..318f8e3dc7
--- /dev/null
+++ b/lib/compiler/test/core_SUITE_data/bad_boolean_guard.core
@@ -0,0 +1,32 @@
+module 'bad_boolean_guard' ['bad_boolean_guard'/0,
+ 'module_info'/0,
+ 'module_info'/1]
+ attributes []
+'bad_boolean_guard'/0 =
+ fun () ->
+ apply 'f'/1
+ ('true')
+'f'/1 =
+ fun (_X_cor0) ->
+ case _X_cor0 of
+ <X>
+ when try
+ call 'erlang':'and'
+ ('bad', _X_cor0)
+ of <Try> ->
+ Try
+ catch <T,R> ->
+ 'false' ->
+ 'not_ok'
+ <_X_cor3> when 'true' ->
+ 'ok'
+ end
+'module_info'/0 =
+ fun () ->
+ call 'erlang':'get_module_info'
+ ('bad_boolean_guard')
+'module_info'/1 =
+ fun (_X_cor0) ->
+ call 'erlang':'get_module_info'
+ ('bad_boolean_guard', _X_cor0)
+end \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 10:28:10 +0000