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-rw-r--r--lib/compiler/src/v3_kernel.erl17
1 files changed, 15 insertions, 2 deletions
diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl
index 3eea058153..23625b1f2e 100644
--- a/lib/compiler/src/v3_kernel.erl
+++ b/lib/compiler/src/v3_kernel.erl
@@ -108,6 +108,7 @@ copy_anno(Kdst, Ksrc) ->
-record(iclause, {anno=[],isub,osub,pats,guard,body}).
-record(ireceive_accept, {anno=[],arg}).
-record(ireceive_next, {anno=[],arg}).
+-record(ignored, {anno=[]}).
-type warning() :: term(). % XXX: REFINE
@@ -489,7 +490,7 @@ make_alt(First0, Then0) ->
Then1 = pre_seq(droplast(Then0), last(Then0)),
First2 = make_protected(First1),
Then2 = make_protected(Then1),
- Body = #k_atom{val=ignored},
+ Body = #ignored{},
First3 = #k_guard_clause{guard=First2,body=Body},
Then3 = #k_guard_clause{guard=Then2,body=Body},
First = #k_guard{clauses=[First3]},
@@ -2225,7 +2226,9 @@ ubody(E, return, St0) ->
{Ea,Pa,St1} = force_atomic(E, St0),
ubody(pre_seq(Pa, #ivalues{args=[Ea]}), return, St1)
end;
-ubody(E, {break,_Rs} = Break, St0) ->
+ubody(#ignored{}, {break,_} = Break, St) ->
+ ubody(#ivalues{args=[]}, Break, St);
+ubody(E, {break,[_]} = Break, St0) ->
%%ok = io:fwrite("ubody ~w:~p~n", [?LINE,{E,Br}]),
%% Exiting expressions need no trailing break.
case is_exit_expr(E) of
@@ -2233,6 +2236,16 @@ ubody(E, {break,_Rs} = Break, St0) ->
false ->
{Ea,Pa,St1} = force_atomic(E, St0),
ubody(pre_seq(Pa, #ivalues{args=[Ea]}), Break, St1)
+ end;
+ubody(E, {break,Rs}=Break, St0) ->
+ case is_exit_expr(E) of
+ true ->
+ uexpr(E, return, St0);
+ false ->
+ {Vs,St1} = new_vars(length(Rs), St0),
+ Iset = #iset{vars=Vs,arg=E},
+ PreSeq = pre_seq([Iset], #ivalues{args=Vs}),
+ ubody(PreSeq, Break, St1)
end.
iletrec_funs(#iletrec{defs=Fs}, St0) ->