aboutsummaryrefslogtreecommitdiffstats
path: root/lib
diff options
context:
space:
mode:
Diffstat (limited to 'lib')
-rw-r--r--lib/compiler/src/sys_core_fold.erl32
1 files changed, 16 insertions, 16 deletions
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl
index 4529c01b69..fa6362b7f1 100644
--- a/lib/compiler/src/sys_core_fold.erl
+++ b/lib/compiler/src/sys_core_fold.erl
@@ -93,8 +93,8 @@
%% Variable value info.
-record(sub, {v=[], %Variable substitutions
- s=[], %Variables in scope
- t=[], %Types
+ s=cerl_sets:new() :: cerl_sets:set(), %Variables in scope
+ t=[], %Types
in_guard=false}). %In guard or not.
-type type_info() :: cerl:cerl() | 'bool' | 'integer'.
@@ -1242,7 +1242,7 @@ is_subst(_) -> false.
%% to force renaming if variables in the scope occurs as pattern
%% variables.
-sub_new() -> #sub{v=orddict:new(),s=gb_sets:empty(),t=[]}.
+sub_new() -> #sub{v=orddict:new(),s=cerl_sets:new(),t=[]}.
sub_new(#sub{}=Sub) ->
Sub#sub{v=orddict:new(),t=[]}.
@@ -1262,16 +1262,16 @@ sub_set_var(#c_var{name=V}, Val, Sub) ->
sub_set_name(V, Val, #sub{v=S,s=Scope,t=Tdb0}=Sub) ->
Tdb1 = kill_types(V, Tdb0),
Tdb = copy_type(V, Val, Tdb1),
- Sub#sub{v=orddict:store(V, Val, S),s=gb_sets:add(V, Scope),t=Tdb}.
+ Sub#sub{v=orddict:store(V, Val, S),s=cerl_sets:add_element(V, Scope),t=Tdb}.
sub_del_var(#c_var{name=V}, #sub{v=S,s=Scope,t=Tdb}=Sub) ->
%% Profiling shows that for programs with many record operations,
%% sub_del_var/2 is a bottleneck. Since the scope contains all
%% variables that are live, we know that V cannot be present in S
%% if it is not in the scope.
- case gb_sets:is_member(V, Scope) of
+ case cerl_sets:is_element(V, Scope) of
false ->
- Sub#sub{s=gb_sets:insert(V, Scope)};
+ Sub#sub{s=cerl_sets:add_element(V, Scope)};
true ->
Sub#sub{v=orddict:erase(V, S),t=kill_types(V, Tdb)}
end.
@@ -1282,12 +1282,12 @@ sub_subst_var(#c_var{name=V}, Val, #sub{v=S0}) ->
sub_add_scope(Vs, #sub{s=Scope0}=Sub) ->
Scope = foldl(fun(V, S) when is_integer(V); is_atom(V) ->
- gb_sets:add(V, S)
+ cerl_sets:add_element(V, S)
end, Scope0, Vs),
Sub#sub{s=Scope}.
sub_subst_scope(#sub{v=S0,s=Scope}=Sub) ->
- S = [{-1,#c_var{name=Sv}} || Sv <- gb_sets:to_list(Scope)]++S0,
+ S = [{-1,#c_var{name=Sv}} || Sv <- cerl_sets:to_list(Scope)]++S0,
Sub#sub{v=S}.
sub_is_val(#c_var{name=V}, #sub{v=S,s=Scope}) ->
@@ -1295,7 +1295,7 @@ sub_is_val(#c_var{name=V}, #sub{v=S,s=Scope}) ->
%% became the new bottleneck. Since the scope contains all
%% live variables, a variable V can only be the target for
%% a substitution if it is in the scope.
- gb_sets:is_member(V, Scope) andalso v_is_value(V, S).
+ cerl_sets:is_element(V, Scope) andalso v_is_value(V, S).
v_is_value(Var, [{_,#c_var{name=Var}}|_]) -> true;
v_is_value(Var, [_|T]) -> v_is_value(Var, T);
@@ -2147,7 +2147,7 @@ is_bool_expr_list([], _) -> true.
%% functions, or is_record/2).
%%
is_safe_bool_expr(Core, Sub) ->
- is_safe_bool_expr_1(Core, Sub, gb_sets:empty()).
+ is_safe_bool_expr_1(Core, Sub, cerl_sets:new()).
is_safe_bool_expr_1(#c_call{module=#c_literal{val=erlang},
name=#c_literal{val=is_record},
@@ -2193,7 +2193,7 @@ is_safe_bool_expr_1(#c_let{vars=Vars,arg=Arg,body=B}, Sub, BoolVars) ->
true ->
case {is_safe_bool_expr_1(Arg, Sub, BoolVars),Vars} of
{true,[#c_var{name=V}]} ->
- is_safe_bool_expr_1(B, Sub, gb_sets:add(V, BoolVars));
+ is_safe_bool_expr_1(B, Sub, cerl_sets:add_element(V, BoolVars));
{false,_} ->
is_safe_bool_expr_1(B, Sub, BoolVars)
end;
@@ -2202,7 +2202,7 @@ is_safe_bool_expr_1(#c_let{vars=Vars,arg=Arg,body=B}, Sub, BoolVars) ->
is_safe_bool_expr_1(#c_literal{val=Val}, _Sub, _) ->
is_boolean(Val);
is_safe_bool_expr_1(#c_var{name=V}, _Sub, BoolVars) ->
- gb_sets:is_element(V, BoolVars);
+ cerl_sets:is_element(V, BoolVars);
is_safe_bool_expr_1(_, _, _) -> false.
is_safe_bool_expr_list([C|Cs], Sub, BoolVars) ->
@@ -2282,8 +2282,8 @@ move_let_into_expr(#c_let{vars=Lvs0,body=Lbody0}=Let,
B1 = body(B0, ScopeSub),
{Lvs,B2,Sub1} = let_substs(Lvs0, B1, Sub0),
- Sub2 = Sub1#sub{s=gb_sets:union(ScopeSub#sub.s,
- Sub1#sub.s)},
+ Sub2 = Sub1#sub{s=cerl_sets:union(ScopeSub#sub.s,
+ Sub1#sub.s)},
Lbody = body(Lbody0, Sub2),
B = Let#c_let{vars=Lvs,arg=core_lib:make_values(B2),body=Lbody},
@@ -3237,12 +3237,12 @@ format_error(bin_var_used_in_guard) ->
verify_scope(E, #sub{s=Scope}) ->
Free0 = cerl_trees:free_variables(E),
Free = [V || V <- Free0, not is_tuple(V)], %Ignore function names.
- case ordsets:is_subset(Free, gb_sets:to_list(Scope)) of
+ case ordsets:is_subset(Free, cerl_sets:to_list(Scope)) of
true -> true;
false ->
io:format("~p\n", [E]),
io:format("~p\n", [Free]),
- io:format("~p\n", [gb_sets:to_list(Scope)]),
+ io:format("~p\n", [cerl_sets:to_list(Scope)]),
false
end.
-endif.