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Fix dyspatch_async calls

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Reviewed By: akotulski

Differential Revision: D3392473

fbshipit-source-id: 37b5b67
master
Dulma Churchill 9 years ago committed by Facebook Github Bot 6
parent f2a9d3ad07
commit a68c45c2a9
7 changed files with 208 additions and 208 deletions
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40
infer/src/clang/ast_expressions.ml
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@ -293,40 +293,16 @@ let make_next_object_exp stmt_info item items =
let loop_cond = make_binary_stmt cast nil_exp stmt_info expr_info boi' in
assignment, loop_cond
(* dispatch_once(v,block_def) is transformed as: *)
(* void (^block_var)()=block_def; block_var() *)
let translate_dispatch_function block_name stmt_info stmt_list n =
let block_expr =
try IList.nth stmt_list (n + 1)
with Not_found -> assert false in
let block_name_info = {
Clang_ast_t.ni_name = block_name;
Clang_ast_t.ni_qual_name = [block_name]
} in
(* 1. dispatch_once(v,block_def) is transformed as: block_def() *)
(* 2. dispatch_once(v,block_var) is transformed as n$1 = *&block_var; n$2=n$1() *)
let translate_dispatch_function stmt_info stmt_list n =
let open Clang_ast_t in
match block_expr with
| BlockExpr (_, _, bei, _) ->
let tp = bei.ei_type_ptr in
let cast_info = { cei_cast_kind = `BitCast; cei_base_path =[]} in
let block_def = ImplicitCastExpr(stmt_info,[block_expr], bei, cast_info) in
let decl_info = { empty_decl_info
with di_pointer = Ast_utils.get_fresh_pointer();
di_source_range = stmt_info.si_source_range } in
let stmt_info = { stmt_info with si_pointer = Ast_utils.get_fresh_pointer(); } in
let var_decl_info = { empty_var_decl_info with vdi_init_expr = Some block_def} in
let block_var_decl = VarDecl(decl_info, block_name_info, tp, var_decl_info) in
let decl_stmt = DeclStmt(stmt_info,[], [block_var_decl]) in
match stmt_list with
| _:: args_stmts ->
let expr_info_call = make_general_expr_info create_void_star_type `XValue `Ordinary in
let expr_info_dre = make_expr_info_with_objc_kind tp `Ordinary in
let decl_ref = make_decl_ref_tp `Var stmt_info.si_pointer block_name_info false tp in
let decl_ref_expr_info = make_decl_ref_expr_info decl_ref in
let cast_info_call = { cei_cast_kind = `LValueToRValue; cei_base_path =[]} in
let decl_ref_exp = DeclRefExpr(stmt_info, [], expr_info_dre, decl_ref_expr_info) in
let stmt_call = ImplicitCastExpr(stmt_info, [decl_ref_exp], bei, cast_info_call) in
let call_block_var = CallExpr(stmt_info, [stmt_call], expr_info_call) in
CompoundStmt (stmt_info, [decl_stmt; call_block_var]), tp
| _ -> assert false (* when we call this function we have already checked that this cannot be possible *)
let arg_stmt = try IList.nth args_stmts n with Failure _ -> assert false in
CallExpr (stmt_info, [arg_stmt], expr_info_call)
| _ -> assert false
(* Create declaration statement: tp vname = iexp *)
let make_DeclStmt stmt_info di tp vname iexp =

2
infer/src/clang/ast_expressions.mli
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@ -77,7 +77,7 @@ val make_obj_c_message_expr_info_class : string -> string -> pointer option ->
val make_obj_c_message_expr_info_instance : string -> obj_c_message_expr_info
val translate_dispatch_function : string -> stmt_info -> stmt list -> int -> stmt * type_ptr
val translate_dispatch_function : stmt_info -> stmt list -> int -> stmt
val translate_block_enumerate : string -> stmt_info -> stmt list -> expr_info ->
stmt * (string * Clang_ast_t.pointer * type_ptr) list

6
infer/src/clang/cTrans.ml
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@ -1078,11 +1078,7 @@ struct
and dispatch_function_trans trans_state stmt_info stmt_list n =
Printing.log_out "\n Call to a dispatch function treated as special case...\n";
let procname = Cfg.Procdesc.get_proc_name trans_state.context.CContext.procdesc in
let pvar = CFrontend_utils.General_utils.get_next_block_pvar procname in
let transformed_stmt, _ =
Ast_expressions.translate_dispatch_function
(Pvar.to_string pvar) stmt_info stmt_list n in
let transformed_stmt = Ast_expressions.translate_dispatch_function stmt_info stmt_list n in
instruction trans_state transformed_stmt
and block_enumeration_trans trans_state stmt_info stmt_list ei =

29
infer/src/clang/cTrans_utils.ml
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@ -624,11 +624,23 @@ let is_logical_negation_of_int tenv ei uoi =
| Sil.Tint Sil.IInt,`LNot -> true
| _, _ -> false
let rec is_block_stmt stmt =
let open Clang_ast_t in
match stmt with
| BlockExpr _ -> true
| DeclRefExpr (_, _, expr_info, _) ->
let tp = expr_info.Clang_ast_t.ei_type_ptr in
CTypes.is_block_type tp
| _ -> (match snd (Clang_ast_proj.get_stmt_tuple stmt) with
| [sub_stmt] -> is_block_stmt sub_stmt
| _ -> false)
(* Checks if stmt_list is a call to a special dispatch function *)
let is_dispatch_function stmt_list =
let open Clang_ast_t in
match stmt_list with
| ImplicitCastExpr(_,[DeclRefExpr(_, _, _, di)], _, _):: stmts ->
let rec is_dispatch_function stmt arg_stmts =
match stmt with
| DeclRefExpr (_, _, _, di) ->
(match di.Clang_ast_t.drti_decl_ref with
| None -> None
| Some d ->
@ -639,12 +651,15 @@ let is_dispatch_function stmt_list =
| None -> None
| Some (_, block_arg_pos) ->
try
(match IList.nth stmts block_arg_pos with
| BlockExpr _ -> Some block_arg_pos
| _ -> None)
with Not_found -> None
)
let arg_stmt = IList.nth arg_stmts block_arg_pos in
if is_block_stmt arg_stmt then Some block_arg_pos else None
with Failure _ -> None)
| _ -> None))
| _ -> match snd (Clang_ast_proj.get_stmt_tuple stmt) with
| [sub_stmt] -> is_dispatch_function sub_stmt arg_stmts
| _ -> None in
match stmt_list with
| stmt:: arg_stmts -> is_dispatch_function stmt arg_stmts
| _ -> None
let is_block_enumerate_function mei =

118
infer/tests/codetoanalyze/objc/frontend/block/dispatch.dot
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@ -1,98 +1,124 @@
/* @generated */
digraph iCFG {
27 [label="27: DeclStmt \n n$3=_fun_A_sharedInstance() [line 43]\n *&b:class A *=n$3 [line 43]\n " shape="box"]
34 [label="34: DeclStmt \n n$3=_fun_A_sharedInstance() [line 54]\n *&b:class A *=n$3 [line 54]\n " shape="box"]
27 -> 26 ;
26 [label="26: DeclStmt \n *&p:int *=0 [line 44]\n " shape="box"]
34 -> 33 ;
33 [label="33: DeclStmt \n *&p:int *=0 [line 55]\n " shape="box"]
26 -> 21 ;
25 [label="25: Return Stmt \n *&return:int =0 [line 48]\n " shape="box"]
33 -> 28 ;
32 [label="32: Return Stmt \n *&return:int =0 [line 59]\n " shape="box"]
25 -> 18 ;
24 [label="24: Return Stmt \n n$1=*&p:int * [line 46]\n n$2=*n$1:int [line 46]\n *&return:int =n$2 [line 46]\n " shape="box"]
32 -> 25 ;
31 [label="31: Return Stmt \n n$1=*&p:int * [line 57]\n n$2=*n$1:int [line 57]\n *&return:int =n$2 [line 57]\n " shape="box"]
24 -> 18 ;
23 [label="23: Prune (false branch) \n PRUNE(((n$0 == 0) == 0), false); [line 45]\n " shape="invhouse"]
31 -> 25 ;
30 [label="30: Prune (false branch) \n PRUNE(((n$0 == 0) == 0), false); [line 56]\n " shape="invhouse"]
23 -> 25 ;
22 [label="22: Prune (true branch) \n PRUNE(((n$0 == 0) != 0), true); [line 45]\n " shape="invhouse"]
30 -> 32 ;
29 [label="29: Prune (true branch) \n PRUNE(((n$0 == 0) != 0), true); [line 56]\n " shape="invhouse"]
22 -> 24 ;
21 [label="21: BinaryOperatorStmt: EQ \n n$0=*&b:class A * [line 45]\n " shape="box"]
29 -> 31 ;
28 [label="28: BinaryOperatorStmt: EQ \n n$0=*&b:class A * [line 56]\n " shape="box"]
21 -> 22 ;
21 -> 23 ;
20 [label="20: between_join_and_exit \n " shape="box"]
28 -> 29 ;
28 -> 30 ;
27 [label="27: between_join_and_exit \n " shape="box"]
20 -> 18 ;
19 [label="19: + \n " ]
27 -> 25 ;
26 [label="26: + \n " ]
19 -> 20 ;
18 [label="18: Exit main \n " color=yellow style=filled]
26 -> 27 ;
25 [label="25: Exit main \n " color=yellow style=filled]
17 [label="17: Start main\nFormals: \nLocals: p:int * b:class A * \n DECLARE_LOCALS(&return,&p,&b); [line 42]\n " color=yellow style=filled]
24 [label="24: Start main\nFormals: \nLocals: p:int * b:class A * \n DECLARE_LOCALS(&return,&p,&b); [line 53]\n " color=yellow style=filled]
17 -> 27 ;
16 [label="16: DeclStmt \n DECLARE_LOCALS(&__objc_anonymous_block_A_trans______2); [line 34]\n n$11=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_trans______2 ):unsigned long ) [line 34]\n *&__objc_anonymous_block_A_trans______2:class __objc_anonymous_block_A_trans______2 =n$11 [line 34]\n n$12=*&#GB$A_trans_sharedInstance:struct objc_object * [line 34]\n *n$11.A_trans_sharedInstance:struct objc_object *=n$12 [line 34]\n *&dummy_block:_fn_ (*)=(_fun___objc_anonymous_block_A_trans______2) [line 34]\n " shape="box"]
24 -> 34 ;
23 [label="23: DeclStmt \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_a_block_variable______3); [line 43]\n n$17=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_a_block_variable______3 ):unsigned long ) [line 43]\n *&__objc_anonymous_block_A_dispatch_a_block_variable______3:class __objc_anonymous_block_A_dispatch_a_block_variable______3 =n$17 [line 43]\n n$18=*&#GB$A_dispatch_a_block_variable_static_storage__:struct objc_object * [line 43]\n *n$17.A_dispatch_a_block_variable_static_storage__:struct objc_object *=n$18 [line 43]\n *&initialization_block__:_fn_ (*)=(_fun___objc_anonymous_block_A_dispatch_a_block_variable______3) [line 43]\n " shape="box"]
16 -> 12 ;
15 [label="15: BinaryOperatorStmt: Assign \n n$9=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 35]\n n$10=_fun_A_init(n$9:class A *) virtual [line 35]\n *&#GB$A_trans_sharedInstance:struct objc_object *=n$10 [line 35]\n " shape="box"]
23 -> 19 ;
22 [label="22: BinaryOperatorStmt: Assign \n n$15=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 44]\n n$16=_fun_A_init(n$15:class A *) virtual [line 44]\n *&#GB$A_dispatch_a_block_variable_static_storage__:struct objc_object *=n$16 [line 44]\n " shape="box"]
15 -> 14 ;
14 [label="14: Exit __objc_anonymous_block_A_trans______2 \n " color=yellow style=filled]
22 -> 21 ;
21 [label="21: Exit __objc_anonymous_block_A_dispatch_a_block_variable______3 \n " color=yellow style=filled]
13 [label="13: Start __objc_anonymous_block_A_trans______2\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 34]\n " color=yellow style=filled]
20 [label="20: Start __objc_anonymous_block_A_dispatch_a_block_variable______3\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 43]\n " color=yellow style=filled]
13 -> 15 ;
12 [label="12: Call n$8 \n n$8=*&dummy_block:_fn_ (*) [line 37]\n n$8() [line 37]\n " shape="box"]
20 -> 22 ;
19 [label="19: Call n$13 \n n$13=*&initialization_block__:_fn_ (*) [line 47]\n n$14=n$13() [line 47]\n " shape="box"]
12 -> 11 ;
11 [label="11: Return Stmt \n n$7=*&#GB$A_trans_sharedInstance:struct objc_object * [line 38]\n *&return:struct objc_object *=n$7 [line 38]\n " shape="box"]
19 -> 18 ;
18 [label="18: Return Stmt \n n$12=*&#GB$A_dispatch_a_block_variable_static_storage__:struct objc_object * [line 48]\n *&return:struct objc_object *=n$12 [line 48]\n " shape="box"]
18 -> 17 ;
17 [label="17: Exit A_dispatch_a_block_variable \n " color=yellow style=filled]
16 [label="16: Start A_dispatch_a_block_variable\nFormals: \nLocals: initialization_block__:_fn_ (*) \n DECLARE_LOCALS(&return,&initialization_block__); [line 41]\n " color=yellow style=filled]
16 -> 23 ;
15 [label="15: DeclStmt \n DECLARE_LOCALS(&__objc_anonymous_block_A_trans______2); [line 34]\n n$10=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_trans______2 ):unsigned long ) [line 34]\n *&__objc_anonymous_block_A_trans______2:class __objc_anonymous_block_A_trans______2 =n$10 [line 34]\n n$11=*&#GB$A_trans_sharedInstance:struct objc_object * [line 34]\n *n$10.A_trans_sharedInstance:struct objc_object *=n$11 [line 34]\n *&dummy_block:_fn_ (*)=(_fun___objc_anonymous_block_A_trans______2) [line 34]\n " shape="box"]
15 -> 11 ;
14 [label="14: BinaryOperatorStmt: Assign \n n$8=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 35]\n n$9=_fun_A_init(n$8:class A *) virtual [line 35]\n *&#GB$A_trans_sharedInstance:struct objc_object *=n$9 [line 35]\n " shape="box"]
14 -> 13 ;
13 [label="13: Exit __objc_anonymous_block_A_trans______2 \n " color=yellow style=filled]
12 [label="12: Start __objc_anonymous_block_A_trans______2\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 34]\n " color=yellow style=filled]
12 -> 14 ;
11 [label="11: Call n$7 \n n$7=*&dummy_block:_fn_ (*) [line 37]\n n$7() [line 37]\n " shape="box"]
11 -> 10 ;
10 [label="10: Exit A_trans \n " color=yellow style=filled]
10 [label="10: Return Stmt \n n$6=*&#GB$A_trans_sharedInstance:struct objc_object * [line 38]\n *&return:struct objc_object *=n$6 [line 38]\n " shape="box"]
9 [label="9: Start A_trans\nFormals: \nLocals: dummy_block:_fn_ (*) \n DECLARE_LOCALS(&return,&dummy_block); [line 32]\n " color=yellow style=filled]
10 -> 9 ;
9 [label="9: Exit A_trans \n " color=yellow style=filled]
9 -> 16 ;
8 [label="8: DeclStmt \n DECLARE_LOCALS(&__objc_anonymous_block_A_sharedInstance______1); [line 26]\n n$5=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_sharedInstance______1 ):unsigned long ) [line 26]\n *&__objc_anonymous_block_A_sharedInstance______1:class __objc_anonymous_block_A_sharedInstance______1 =n$5 [line 26]\n n$6=*&#GB$A_sharedInstance_sharedInstance:struct objc_object * [line 26]\n *n$5.A_sharedInstance_sharedInstance:struct objc_object *=n$6 [line 26]\n *&infer___objc_anonymous_block_A_sharedInstance______1:_fn_ (*)=(_fun___objc_anonymous_block_A_sharedInstance______1) [line 26]\n " shape="box"]
8 [label="8: Start A_trans\nFormals: \nLocals: dummy_block:_fn_ (*) \n DECLARE_LOCALS(&return,&dummy_block); [line 32]\n " color=yellow style=filled]
8 -> 4 ;
7 [label="7: BinaryOperatorStmt: Assign \n n$3=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 27]\n n$4=_fun_A_init(n$3:class A *) virtual [line 27]\n *&#GB$A_sharedInstance_sharedInstance:struct objc_object *=n$4 [line 27]\n " shape="box"]
8 -> 15 ;
7 [label="7: Call (_fun___objc_anonymous_block_A_sharedInstance______1) \n DECLARE_LOCALS(&__objc_anonymous_block_A_sharedInstance______1); [line 26]\n n$3=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_sharedInstance______1 ):unsigned long ) [line 26]\n *&__objc_anonymous_block_A_sharedInstance______1:class __objc_anonymous_block_A_sharedInstance______1 =n$3 [line 26]\n n$4=*&#GB$A_sharedInstance_sharedInstance:struct objc_object * [line 26]\n *n$3.A_sharedInstance_sharedInstance:struct objc_object *=n$4 [line 26]\n n$5=(_fun___objc_anonymous_block_A_sharedInstance______1)() [line 26]\n " shape="box"]
7 -> 6 ;
6 [label="6: Exit __objc_anonymous_block_A_sharedInstance______1 \n " color=yellow style=filled]
7 -> 3 ;
6 [label="6: BinaryOperatorStmt: Assign \n n$1=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 27]\n n$2=_fun_A_init(n$1:class A *) virtual [line 27]\n *&#GB$A_sharedInstance_sharedInstance:struct objc_object *=n$2 [line 27]\n " shape="box"]
5 [label="5: Start __objc_anonymous_block_A_sharedInstance______1\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 26]\n " color=yellow style=filled]
6 -> 5 ;
5 [label="5: Exit __objc_anonymous_block_A_sharedInstance______1 \n " color=yellow style=filled]
5 -> 7 ;
4 [label="4: Call n$1 \n n$1=*&infer___objc_anonymous_block_A_sharedInstance______1:_fn_ (*) [line 26]\n n$2=n$1() [line 26]\n " shape="box"]
4 [label="4: Start __objc_anonymous_block_A_sharedInstance______1\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 26]\n " color=yellow style=filled]
4 -> 3 ;
4 -> 6 ;
3 [label="3: Return Stmt \n n$0=*&#GB$A_sharedInstance_sharedInstance:struct objc_object * [line 29]\n *&return:struct objc_object *=n$0 [line 29]\n " shape="box"]
@ -100,8 +126,8 @@ digraph iCFG {
2 [label="2: Exit A_sharedInstance \n " color=yellow style=filled]
1 [label="1: Start A_sharedInstance\nFormals: \nLocals: infer___objc_anonymous_block_A_sharedInstance______1:_fn_ (*) \n DECLARE_LOCALS(&return,&infer___objc_anonymous_block_A_sharedInstance______1); [line 23]\n " color=yellow style=filled]
1 [label="1: Start A_sharedInstance\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 23]\n " color=yellow style=filled]
1 -> 8 ;
1 -> 7 ;
}

11
infer/tests/codetoanalyze/objc/frontend/block/dispatch.m
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@ -37,6 +37,17 @@
dummy_block();
return sharedInstance;
}
+ (instancetype)dispatch_a_block_variable {
static __typeof__([self new]) static_storage__;
void (^initialization_block__)() = ^{
static_storage__ = ([self new]);
};
static dispatch_once_t once_token__;
_dispatch_once(&once_token__, initialization_block__);
return static_storage__;
}
@end
int main() {

190
infer/tests/codetoanalyze/objc/frontend/block/dispatch_examples.dot
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@ -1,222 +1,198 @@
/* @generated */
digraph iCFG {
60 [label="60: DeclStmt \n *&#GB$A_dispatch_barrier_example_a:class A *=0 [line 72]\n " shape="box"]
60 -> 59 ;
59 [label="59: DeclStmt \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_barrier_example______6); [line 73]\n n$52=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_barrier_example______6 ):unsigned long ) [line 73]\n *&__objc_anonymous_block_A_dispatch_barrier_example______6:class __objc_anonymous_block_A_dispatch_barrier_example______6 =n$52 [line 73]\n n$53=*&#GB$A_dispatch_barrier_example_a:class A * [line 73]\n *n$52.A_dispatch_barrier_example_a:class A *=n$53 [line 73]\n *&infer___objc_anonymous_block_A_dispatch_barrier_example______6:_fn_ (*)=(_fun___objc_anonymous_block_A_dispatch_barrier_example______6) [line 73]\n " shape="box"]
59 -> 54 ;
58 [label="58: BinaryOperatorStmt: Assign \n n$50=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 74]\n n$51=_fun_NSObject_init(n$50:class A *) virtual [line 74]\n *&#GB$A_dispatch_barrier_example_a:class A *=n$51 [line 74]\n " shape="box"]
58 -> 57 ;
57 [label="57: BinaryOperatorStmt: Assign \n n$49=*&#GB$A_dispatch_barrier_example_a:class A * [line 75]\n *n$49.x:int =10 [line 75]\n " shape="box"]
57 -> 56 ;
56 [label="56: Exit __objc_anonymous_block_A_dispatch_barrier_example______6 \n " color=yellow style=filled]
55 [label="55: Start __objc_anonymous_block_A_dispatch_barrier_example______6\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 73]\n " color=yellow style=filled]
55 -> 58 ;
54 [label="54: Call n$47 \n n$47=*&infer___objc_anonymous_block_A_dispatch_barrier_example______6:_fn_ (*) [line 73]\n n$48=n$47() [line 73]\n " shape="box"]
54 [label="54: DeclStmt \n *&#GB$A_dispatch_barrier_example_a:class A *=0 [line 72]\n " shape="box"]
54 -> 53 ;
53 [label="53: Return Stmt \n n$45=*&#GB$A_dispatch_barrier_example_a:class A * [line 77]\n n$46=*n$45.x:int [line 77]\n *&return:int =n$46 [line 77]\n " shape="box"]
53 [label="53: Call (_fun___objc_anonymous_block_A_dispatch_barrier_example______6) \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_barrier_example______6); [line 73]\n n$45=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_barrier_example______6 ):unsigned long ) [line 73]\n *&__objc_anonymous_block_A_dispatch_barrier_example______6:class __objc_anonymous_block_A_dispatch_barrier_example______6 =n$45 [line 73]\n n$46=*&#GB$A_dispatch_barrier_example_a:class A * [line 73]\n *n$45.A_dispatch_barrier_example_a:class A *=n$46 [line 73]\n n$47=(_fun___objc_anonymous_block_A_dispatch_barrier_example______6)() [line 73]\n " shape="box"]
53 -> 52 ;
52 [label="52: Exit A_dispatch_barrier_example \n " color=yellow style=filled]
53 -> 48 ;
52 [label="52: BinaryOperatorStmt: Assign \n n$43=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 74]\n n$44=_fun_NSObject_init(n$43:class A *) virtual [line 74]\n *&#GB$A_dispatch_barrier_example_a:class A *=n$44 [line 74]\n " shape="box"]
51 [label="51: Start A_dispatch_barrier_example\nFormals: \nLocals: infer___objc_anonymous_block_A_dispatch_barrier_example______6:_fn_ (*) \n DECLARE_LOCALS(&return,&infer___objc_anonymous_block_A_dispatch_barrier_example______6); [line 71]\n " color=yellow style=filled]
52 -> 51 ;
51 [label="51: BinaryOperatorStmt: Assign \n n$42=*&#GB$A_dispatch_barrier_example_a:class A * [line 75]\n *n$42.x:int =10 [line 75]\n " shape="box"]
51 -> 60 ;
50 [label="50: DeclStmt \n *&#GB$A_dispatch_group_notify_example_a:class A *=0 [line 63]\n " shape="box"]
51 -> 50 ;
50 [label="50: Exit __objc_anonymous_block_A_dispatch_barrier_example______6 \n " color=yellow style=filled]
50 -> 49 ;
49 [label="49: DeclStmt \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_group_notify_example______5); [line 64]\n n$43=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_group_notify_example______5 ):unsigned long ) [line 64]\n *&__objc_anonymous_block_A_dispatch_group_notify_example______5:class __objc_anonymous_block_A_dispatch_group_notify_example______5 =n$43 [line 64]\n n$44=*&#GB$A_dispatch_group_notify_example_a:class A * [line 64]\n *n$43.A_dispatch_group_notify_example_a:class A *=n$44 [line 64]\n *&infer___objc_anonymous_block_A_dispatch_group_notify_example______5:_fn_ (*)=(_fun___objc_anonymous_block_A_dispatch_group_notify_example______5) [line 64]\n " shape="box"]
49 [label="49: Start __objc_anonymous_block_A_dispatch_barrier_example______6\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 73]\n " color=yellow style=filled]
49 -> 44 ;
48 [label="48: BinaryOperatorStmt: Assign \n n$41=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 65]\n n$42=_fun_NSObject_init(n$41:class A *) virtual [line 65]\n *&#GB$A_dispatch_group_notify_example_a:class A *=n$42 [line 65]\n " shape="box"]
49 -> 52 ;
48 [label="48: Return Stmt \n n$40=*&#GB$A_dispatch_barrier_example_a:class A * [line 77]\n n$41=*n$40.x:int [line 77]\n *&return:int =n$41 [line 77]\n " shape="box"]
48 -> 47 ;
47 [label="47: BinaryOperatorStmt: Assign \n n$40=*&#GB$A_dispatch_group_notify_example_a:class A * [line 66]\n *n$40.x:int =10 [line 66]\n " shape="box"]
47 [label="47: Exit A_dispatch_barrier_example \n " color=yellow style=filled]
47 -> 46 ;
46 [label="46: Exit __objc_anonymous_block_A_dispatch_group_notify_example______5 \n " color=yellow style=filled]
46 [label="46: Start A_dispatch_barrier_example\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 71]\n " color=yellow style=filled]
45 [label="45: Start __objc_anonymous_block_A_dispatch_group_notify_example______5\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 64]\n " color=yellow style=filled]
46 -> 54 ;
45 [label="45: DeclStmt \n *&#GB$A_dispatch_group_notify_example_a:class A *=0 [line 63]\n " shape="box"]
45 -> 48 ;
44 [label="44: Call n$38 \n n$38=*&infer___objc_anonymous_block_A_dispatch_group_notify_example______5:_fn_ (*) [line 64]\n n$39=n$38() [line 64]\n " shape="box"]
45 -> 44 ;
44 [label="44: Call (_fun___objc_anonymous_block_A_dispatch_group_notify_example______5) \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_group_notify_example______5); [line 64]\n n$37=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_group_notify_example______5 ):unsigned long ) [line 64]\n *&__objc_anonymous_block_A_dispatch_group_notify_example______5:class __objc_anonymous_block_A_dispatch_group_notify_example______5 =n$37 [line 64]\n n$38=*&#GB$A_dispatch_group_notify_example_a:class A * [line 64]\n *n$37.A_dispatch_group_notify_example_a:class A *=n$38 [line 64]\n n$39=(_fun___objc_anonymous_block_A_dispatch_group_notify_example______5)() [line 64]\n " shape="box"]
44 -> 43 ;
43 [label="43: Return Stmt \n n$36=*&#GB$A_dispatch_group_notify_example_a:class A * [line 68]\n n$37=*n$36.x:int [line 68]\n *&return:int =n$37 [line 68]\n " shape="box"]
44 -> 39 ;
43 [label="43: BinaryOperatorStmt: Assign \n n$35=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 65]\n n$36=_fun_NSObject_init(n$35:class A *) virtual [line 65]\n *&#GB$A_dispatch_group_notify_example_a:class A *=n$36 [line 65]\n " shape="box"]
43 -> 42 ;
42 [label="42: Exit A_dispatch_group_notify_example \n " color=yellow style=filled]
42 [label="42: BinaryOperatorStmt: Assign \n n$34=*&#GB$A_dispatch_group_notify_example_a:class A * [line 66]\n *n$34.x:int =10 [line 66]\n " shape="box"]
41 [label="41: Start A_dispatch_group_notify_example\nFormals: \nLocals: infer___objc_anonymous_block_A_dispatch_group_notify_example______5:_fn_ (*) \n DECLARE_LOCALS(&return,&infer___objc_anonymous_block_A_dispatch_group_notify_example______5); [line 62]\n " color=yellow style=filled]
42 -> 41 ;
41 [label="41: Exit __objc_anonymous_block_A_dispatch_group_notify_example______5 \n " color=yellow style=filled]
41 -> 50 ;
40 [label="40: DeclStmt \n *&#GB$A_dispatch_group_example_a:class A *=0 [line 54]\n " shape="box"]
40 [label="40: Start __objc_anonymous_block_A_dispatch_group_notify_example______5\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 64]\n " color=yellow style=filled]
40 -> 39 ;
39 [label="39: DeclStmt \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_group_example______4); [line 55]\n n$34=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_group_example______4 ):unsigned long ) [line 55]\n *&__objc_anonymous_block_A_dispatch_group_example______4:class __objc_anonymous_block_A_dispatch_group_example______4 =n$34 [line 55]\n n$35=*&#GB$A_dispatch_group_example_a:class A * [line 55]\n *n$34.A_dispatch_group_example_a:class A *=n$35 [line 55]\n *&infer___objc_anonymous_block_A_dispatch_group_example______4:_fn_ (*)=(_fun___objc_anonymous_block_A_dispatch_group_example______4) [line 55]\n " shape="box"]
40 -> 43 ;
39 [label="39: Return Stmt \n n$32=*&#GB$A_dispatch_group_notify_example_a:class A * [line 68]\n n$33=*n$32.x:int [line 68]\n *&return:int =n$33 [line 68]\n " shape="box"]
39 -> 34 ;
38 [label="38: BinaryOperatorStmt: Assign \n n$32=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 56]\n n$33=_fun_NSObject_init(n$32:class A *) virtual [line 56]\n *&#GB$A_dispatch_group_example_a:class A *=n$33 [line 56]\n " shape="box"]
39 -> 38 ;
38 [label="38: Exit A_dispatch_group_notify_example \n " color=yellow style=filled]
38 -> 37 ;
37 [label="37: BinaryOperatorStmt: Assign \n n$31=*&#GB$A_dispatch_group_example_a:class A * [line 57]\n *n$31.x:int =10 [line 57]\n " shape="box"]
37 [label="37: Start A_dispatch_group_notify_example\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 62]\n " color=yellow style=filled]
37 -> 36 ;
36 [label="36: Exit __objc_anonymous_block_A_dispatch_group_example______4 \n " color=yellow style=filled]
37 -> 45 ;
36 [label="36: DeclStmt \n *&#GB$A_dispatch_group_example_a:class A *=0 [line 54]\n " shape="box"]
35 [label="35: Start __objc_anonymous_block_A_dispatch_group_example______4\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 55]\n " color=yellow style=filled]
36 -> 35 ;
35 [label="35: Call (_fun___objc_anonymous_block_A_dispatch_group_example______4) \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_group_example______4); [line 55]\n n$29=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_group_example______4 ):unsigned long ) [line 55]\n *&__objc_anonymous_block_A_dispatch_group_example______4:class __objc_anonymous_block_A_dispatch_group_example______4 =n$29 [line 55]\n n$30=*&#GB$A_dispatch_group_example_a:class A * [line 55]\n *n$29.A_dispatch_group_example_a:class A *=n$30 [line 55]\n n$31=(_fun___objc_anonymous_block_A_dispatch_group_example______4)() [line 55]\n " shape="box"]
35 -> 38 ;
34 [label="34: Call n$29 \n n$29=*&infer___objc_anonymous_block_A_dispatch_group_example______4:_fn_ (*) [line 55]\n n$30=n$29() [line 55]\n " shape="box"]
35 -> 30 ;
34 [label="34: BinaryOperatorStmt: Assign \n n$27=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 56]\n n$28=_fun_NSObject_init(n$27:class A *) virtual [line 56]\n *&#GB$A_dispatch_group_example_a:class A *=n$28 [line 56]\n " shape="box"]
34 -> 33 ;
33 [label="33: Return Stmt \n n$27=*&#GB$A_dispatch_group_example_a:class A * [line 59]\n n$28=*n$27.x:int [line 59]\n *&return:int =n$28 [line 59]\n " shape="box"]
33 [label="33: BinaryOperatorStmt: Assign \n n$26=*&#GB$A_dispatch_group_example_a:class A * [line 57]\n *n$26.x:int =10 [line 57]\n " shape="box"]
33 -> 32 ;
32 [label="32: Exit A_dispatch_group_example \n " color=yellow style=filled]
32 [label="32: Exit __objc_anonymous_block_A_dispatch_group_example______4 \n " color=yellow style=filled]
31 [label="31: Start A_dispatch_group_example\nFormals: \nLocals: infer___objc_anonymous_block_A_dispatch_group_example______4:_fn_ (*) \n DECLARE_LOCALS(&return,&infer___objc_anonymous_block_A_dispatch_group_example______4); [line 53]\n " color=yellow style=filled]
31 [label="31: Start __objc_anonymous_block_A_dispatch_group_example______4\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 55]\n " color=yellow style=filled]
31 -> 40 ;
30 [label="30: DeclStmt \n *&#GB$A_dispatch_after_example_a:class A *=0 [line 43]\n " shape="box"]
31 -> 34 ;
30 [label="30: Return Stmt \n n$24=*&#GB$A_dispatch_group_example_a:class A * [line 59]\n n$25=*n$24.x:int [line 59]\n *&return:int =n$25 [line 59]\n " shape="box"]
30 -> 29 ;
29 [label="29: DeclStmt \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_after_example______3); [line 46]\n n$25=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_after_example______3 ):unsigned long ) [line 46]\n *&__objc_anonymous_block_A_dispatch_after_example______3:class __objc_anonymous_block_A_dispatch_after_example______3 =n$25 [line 46]\n n$26=*&#GB$A_dispatch_after_example_a:class A * [line 46]\n *n$25.A_dispatch_after_example_a:class A *=n$26 [line 46]\n *&infer___objc_anonymous_block_A_dispatch_after_example______3:_fn_ (*)=(_fun___objc_anonymous_block_A_dispatch_after_example______3) [line 44]\n " shape="box"]
29 [label="29: Exit A_dispatch_group_example \n " color=yellow style=filled]
29 -> 24 ;
28 [label="28: BinaryOperatorStmt: Assign \n n$23=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 47]\n n$24=_fun_NSObject_init(n$23:class A *) virtual [line 47]\n *&#GB$A_dispatch_after_example_a:class A *=n$24 [line 47]\n " shape="box"]
28 [label="28: Start A_dispatch_group_example\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 53]\n " color=yellow style=filled]
28 -> 27 ;
27 [label="27: BinaryOperatorStmt: Assign \n n$22=*&#GB$A_dispatch_after_example_a:class A * [line 48]\n *n$22.x:int =10 [line 48]\n " shape="box"]
28 -> 36 ;
27 [label="27: DeclStmt \n *&#GB$A_dispatch_after_example_a:class A *=0 [line 43]\n " shape="box"]
27 -> 26 ;
26 [label="26: Exit __objc_anonymous_block_A_dispatch_after_example______3 \n " color=yellow style=filled]
26 [label="26: Call (_fun___objc_anonymous_block_A_dispatch_after_example______3) \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_after_example______3); [line 46]\n n$21=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_after_example______3 ):unsigned long ) [line 46]\n *&__objc_anonymous_block_A_dispatch_after_example______3:class __objc_anonymous_block_A_dispatch_after_example______3 =n$21 [line 46]\n n$22=*&#GB$A_dispatch_after_example_a:class A * [line 46]\n *n$21.A_dispatch_after_example_a:class A *=n$22 [line 46]\n n$23=(_fun___objc_anonymous_block_A_dispatch_after_example______3)() [line 44]\n " shape="box"]
25 [label="25: Start __objc_anonymous_block_A_dispatch_after_example______3\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 46]\n " color=yellow style=filled]
26 -> 21 ;
25 [label="25: BinaryOperatorStmt: Assign \n n$19=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 47]\n n$20=_fun_NSObject_init(n$19:class A *) virtual [line 47]\n *&#GB$A_dispatch_after_example_a:class A *=n$20 [line 47]\n " shape="box"]
25 -> 28 ;
24 [label="24: Call n$20 \n n$20=*&infer___objc_anonymous_block_A_dispatch_after_example______3:_fn_ (*) [line 44]\n n$21=n$20() [line 44]\n " shape="box"]
25 -> 24 ;
24 [label="24: BinaryOperatorStmt: Assign \n n$18=*&#GB$A_dispatch_after_example_a:class A * [line 48]\n *n$18.x:int =10 [line 48]\n " shape="box"]
24 -> 23 ;
23 [label="23: Return Stmt \n n$18=*&#GB$A_dispatch_after_example_a:class A * [line 50]\n n$19=*n$18.x:int [line 50]\n *&return:int =n$19 [line 50]\n " shape="box"]
23 [label="23: Exit __objc_anonymous_block_A_dispatch_after_example______3 \n " color=yellow style=filled]
23 -> 22 ;
22 [label="22: Exit A_dispatch_after_example \n " color=yellow style=filled]
22 [label="22: Start __objc_anonymous_block_A_dispatch_after_example______3\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 46]\n " color=yellow style=filled]
21 [label="21: Start A_dispatch_after_example\nFormals: \nLocals: infer___objc_anonymous_block_A_dispatch_after_example______3:_fn_ (*) \n DECLARE_LOCALS(&return,&infer___objc_anonymous_block_A_dispatch_after_example______3); [line 42]\n " color=yellow style=filled]
22 -> 25 ;
21 [label="21: Return Stmt \n n$16=*&#GB$A_dispatch_after_example_a:class A * [line 50]\n n$17=*n$16.x:int [line 50]\n *&return:int =n$17 [line 50]\n " shape="box"]
21 -> 30 ;
20 [label="20: DeclStmt \n *&#GB$A_dispatch_async_example_a:class A *=0 [line 33]\n " shape="box"]
21 -> 20 ;
20 [label="20: Exit A_dispatch_after_example \n " color=yellow style=filled]
20 -> 19 ;
19 [label="19: DeclStmt \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_async_example______2); [line 35]\n n$16=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_async_example______2 ):unsigned long ) [line 35]\n *&__objc_anonymous_block_A_dispatch_async_example______2:class __objc_anonymous_block_A_dispatch_async_example______2 =n$16 [line 35]\n n$17=*&#GB$A_dispatch_async_example_a:class A * [line 35]\n *n$16.A_dispatch_async_example_a:class A *=n$17 [line 35]\n *&infer___objc_anonymous_block_A_dispatch_async_example______2:_fn_ (*)=(_fun___objc_anonymous_block_A_dispatch_async_example______2) [line 34]\n " shape="box"]
19 [label="19: Start A_dispatch_after_example\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 42]\n " color=yellow style=filled]
19 -> 14 ;
18 [label="18: BinaryOperatorStmt: Assign \n n$14=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 36]\n n$15=_fun_NSObject_init(n$14:class A *) virtual [line 36]\n *&#GB$A_dispatch_async_example_a:class A *=n$15 [line 36]\n " shape="box"]
19 -> 27 ;
18 [label="18: DeclStmt \n *&#GB$A_dispatch_async_example_a:class A *=0 [line 33]\n " shape="box"]
18 -> 17 ;
17 [label="17: BinaryOperatorStmt: Assign \n n$13=*&#GB$A_dispatch_async_example_a:class A * [line 37]\n *n$13.x:int =10 [line 37]\n " shape="box"]
17 [label="17: Call (_fun___objc_anonymous_block_A_dispatch_async_example______2) \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_async_example______2); [line 35]\n n$13=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_async_example______2 ):unsigned long ) [line 35]\n *&__objc_anonymous_block_A_dispatch_async_example______2:class __objc_anonymous_block_A_dispatch_async_example______2 =n$13 [line 35]\n n$14=*&#GB$A_dispatch_async_example_a:class A * [line 35]\n *n$13.A_dispatch_async_example_a:class A *=n$14 [line 35]\n n$15=(_fun___objc_anonymous_block_A_dispatch_async_example______2)() [line 34]\n " shape="box"]
17 -> 16 ;
16 [label="16: Exit __objc_anonymous_block_A_dispatch_async_example______2 \n " color=yellow style=filled]
17 -> 12 ;
16 [label="16: BinaryOperatorStmt: Assign \n n$11=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 36]\n n$12=_fun_NSObject_init(n$11:class A *) virtual [line 36]\n *&#GB$A_dispatch_async_example_a:class A *=n$12 [line 36]\n " shape="box"]
15 [label="15: Start __objc_anonymous_block_A_dispatch_async_example______2\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 35]\n " color=yellow style=filled]
16 -> 15 ;
15 [label="15: BinaryOperatorStmt: Assign \n n$10=*&#GB$A_dispatch_async_example_a:class A * [line 37]\n *n$10.x:int =10 [line 37]\n " shape="box"]
15 -> 18 ;
14 [label="14: Call n$11 \n n$11=*&infer___objc_anonymous_block_A_dispatch_async_example______2:_fn_ (*) [line 34]\n n$12=n$11() [line 34]\n " shape="box"]
15 -> 14 ;
14 [label="14: Exit __objc_anonymous_block_A_dispatch_async_example______2 \n " color=yellow style=filled]
14 -> 13 ;
13 [label="13: Return Stmt \n n$9=*&#GB$A_dispatch_async_example_a:class A * [line 39]\n n$10=*n$9.x:int [line 39]\n *&return:int =n$10 [line 39]\n " shape="box"]
13 [label="13: Start __objc_anonymous_block_A_dispatch_async_example______2\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 35]\n " color=yellow style=filled]
13 -> 12 ;
12 [label="12: Exit A_dispatch_async_example \n " color=yellow style=filled]
13 -> 16 ;
12 [label="12: Return Stmt \n n$8=*&#GB$A_dispatch_async_example_a:class A * [line 39]\n n$9=*n$8.x:int [line 39]\n *&return:int =n$9 [line 39]\n " shape="box"]
11 [label="11: Start A_dispatch_async_example\nFormals: \nLocals: infer___objc_anonymous_block_A_dispatch_async_example______2:_fn_ (*) \n DECLARE_LOCALS(&return,&infer___objc_anonymous_block_A_dispatch_async_example______2); [line 32]\n " color=yellow style=filled]
12 -> 11 ;
11 [label="11: Exit A_dispatch_async_example \n " color=yellow style=filled]
11 -> 20 ;
10 [label="10: DeclStmt \n *&#GB$A_dispatch_once_example_a:class A *=0 [line 21]\n " shape="box"]
10 [label="10: Start A_dispatch_async_example\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 32]\n " color=yellow style=filled]
10 -> 9 ;
9 [label="9: DeclStmt \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_once_example______1); [line 25]\n n$7=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_once_example______1 ):unsigned long ) [line 25]\n *&__objc_anonymous_block_A_dispatch_once_example______1:class __objc_anonymous_block_A_dispatch_once_example______1 =n$7 [line 25]\n n$8=*&#GB$A_dispatch_once_example_a:class A * [line 25]\n *n$7.A_dispatch_once_example_a:class A *=n$8 [line 25]\n *&infer___objc_anonymous_block_A_dispatch_once_example______1:_fn_ (*)=(_fun___objc_anonymous_block_A_dispatch_once_example______1) [line 25]\n " shape="box"]
10 -> 18 ;
9 [label="9: DeclStmt \n *&#GB$A_dispatch_once_example_a:class A *=0 [line 21]\n " shape="box"]
9 -> 4 ;
8 [label="8: BinaryOperatorStmt: Assign \n n$5=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 26]\n n$6=_fun_NSObject_init(n$5:class A *) virtual [line 26]\n *&#GB$A_dispatch_once_example_a:class A *=n$6 [line 26]\n " shape="box"]
9 -> 8 ;
8 [label="8: Call (_fun___objc_anonymous_block_A_dispatch_once_example______1) \n DECLARE_LOCALS(&__objc_anonymous_block_A_dispatch_once_example______1); [line 25]\n n$5=_fun___objc_alloc_no_fail(sizeof(class __objc_anonymous_block_A_dispatch_once_example______1 ):unsigned long ) [line 25]\n *&__objc_anonymous_block_A_dispatch_once_example______1:class __objc_anonymous_block_A_dispatch_once_example______1 =n$5 [line 25]\n n$6=*&#GB$A_dispatch_once_example_a:class A * [line 25]\n *n$5.A_dispatch_once_example_a:class A *=n$6 [line 25]\n n$7=(_fun___objc_anonymous_block_A_dispatch_once_example______1)() [line 25]\n " shape="box"]
8 -> 7 ;
7 [label="7: BinaryOperatorStmt: Assign \n n$4=*&#GB$A_dispatch_once_example_a:class A * [line 27]\n *n$4.x:int =10 [line 27]\n " shape="box"]
8 -> 3 ;
7 [label="7: BinaryOperatorStmt: Assign \n n$3=_fun___objc_alloc_no_fail(sizeof(class A ):unsigned long ) [line 26]\n n$4=_fun_NSObject_init(n$3:class A *) virtual [line 26]\n *&#GB$A_dispatch_once_example_a:class A *=n$4 [line 26]\n " shape="box"]
7 -> 6 ;
6 [label="6: Exit __objc_anonymous_block_A_dispatch_once_example______1 \n " color=yellow style=filled]
6 [label="6: BinaryOperatorStmt: Assign \n n$2=*&#GB$A_dispatch_once_example_a:class A * [line 27]\n *n$2.x:int =10 [line 27]\n " shape="box"]
5 [label="5: Start __objc_anonymous_block_A_dispatch_once_example______1\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 25]\n " color=yellow style=filled]
6 -> 5 ;
5 [label="5: Exit __objc_anonymous_block_A_dispatch_once_example______1 \n " color=yellow style=filled]
5 -> 8 ;
4 [label="4: Call n$2 \n n$2=*&infer___objc_anonymous_block_A_dispatch_once_example______1:_fn_ (*) [line 25]\n n$3=n$2() [line 25]\n " shape="box"]
4 [label="4: Start __objc_anonymous_block_A_dispatch_once_example______1\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 25]\n " color=yellow style=filled]
4 -> 3 ;
4 -> 7 ;
3 [label="3: Return Stmt \n n$0=*&#GB$A_dispatch_once_example_a:class A * [line 29]\n n$1=*n$0.x:int [line 29]\n *&return:int =n$1 [line 29]\n " shape="box"]
@ -224,8 +200,8 @@ digraph iCFG {
2 [label="2: Exit A_dispatch_once_example \n " color=yellow style=filled]
1 [label="1: Start A_dispatch_once_example\nFormals: \nLocals: infer___objc_anonymous_block_A_dispatch_once_example______1:_fn_ (*) \n DECLARE_LOCALS(&return,&infer___objc_anonymous_block_A_dispatch_once_example______1); [line 20]\n " color=yellow style=filled]
1 [label="1: Start A_dispatch_once_example\nFormals: \nLocals: \n DECLARE_LOCALS(&return); [line 20]\n " color=yellow style=filled]
1 -> 10 ;
1 -> 9 ;
}

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