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-rw-r--r--lib/compiler/src/beam_validator.erl44
-rw-r--r--lib/compiler/test/receive_SUITE.erl30
2 files changed, 50 insertions, 24 deletions
diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl
index c01e9cded2..fa31a47128 100644
--- a/lib/compiler/src/beam_validator.erl
+++ b/lib/compiler/src/beam_validator.erl
@@ -421,12 +421,12 @@ valfun_1({bif,Op,{f,_},Ss,Dst}=I, Vst) ->
end;
%% Put instructions.
valfun_1({put_list,A,B,Dst}, Vst0) ->
- assert_durable_term(A, Vst0),
- assert_durable_term(B, Vst0),
+ assert_term(A, Vst0),
+ assert_term(B, Vst0),
Vst = eat_heap(2, Vst0),
create_term(cons, put_list, [A, B], Dst, Vst);
valfun_1({put_tuple2,Dst,{list,Elements}}, Vst0) ->
- _ = [assert_durable_term(El, Vst0) || El <- Elements],
+ _ = [assert_term(El, Vst0) || El <- Elements],
Size = length(Elements),
Vst = eat_heap(Size+1, Vst0),
{Es,_} = foldl(fun(Val, {Es0, Index}) ->
@@ -443,7 +443,7 @@ valfun_1({put_tuple,Sz,Dst}, Vst0) when is_integer(Sz) ->
St = St0#st{puts_left={Sz,{Dst,Sz,#{}}}},
Vst#vst{current=St};
valfun_1({put,Src}, Vst0) ->
- assert_durable_term(Src, Vst0),
+ assert_term(Src, Vst0),
Vst = eat_heap(1, Vst0),
#vst{current=St0} = Vst,
case St0 of
@@ -759,7 +759,7 @@ valfun_4(send, Vst) ->
call(send, 2, Vst);
valfun_4({set_tuple_element,Src,Tuple,N}, Vst) ->
I = N + 1,
- assert_durable_term(Src, Vst),
+ assert_term(Src, Vst),
assert_type({tuple_element,I}, Tuple, Vst),
%% Manually update the tuple type; we can't rely on the ordinary update
%% helpers as we must support overwriting (rather than just widening or
@@ -905,8 +905,8 @@ valfun_4({test,_Op,{f,Lbl},Src}, Vst) ->
validate_src(Src, Vst),
branch_state(Lbl, Vst);
valfun_4({bs_add,{f,Fail},[A,B,_],Dst}, Vst) ->
- assert_durable_term(A, Vst),
- assert_durable_term(B, Vst),
+ assert_term(A, Vst),
+ assert_term(B, Vst),
create_term({integer,[]}, bs_add, [A, B], Dst, branch_state(Fail, Vst));
valfun_4({bs_utf8_size,{f,Fail},A,Dst}, Vst) ->
assert_term(A, Vst),
@@ -921,7 +921,7 @@ valfun_4({bs_init2,{f,Fail},Sz,Heap,Live,_,Dst}, Vst0) ->
is_integer(Sz) ->
ok;
true ->
- assert_durable_term(Sz, Vst0)
+ assert_term(Sz, Vst0)
end,
Vst1 = heap_alloc(Heap, Vst0),
Vst2 = branch_state(Fail, Vst1),
@@ -943,39 +943,39 @@ valfun_4({bs_init_bits,{f,Fail},Sz,Heap,Live,_,Dst}, Vst0) ->
valfun_4({bs_append,{f,Fail},Bits,Heap,Live,_Unit,Bin,_Flags,Dst}, Vst0) ->
verify_live(Live, Vst0),
verify_y_init(Vst0),
- assert_durable_term(Bits, Vst0),
- assert_durable_term(Bin, Vst0),
+ assert_term(Bits, Vst0),
+ assert_term(Bin, Vst0),
Vst1 = heap_alloc(Heap, Vst0),
Vst2 = branch_state(Fail, Vst1),
Vst = prune_x_regs(Live, Vst2),
create_term(binary, bs_append, [Bin], Dst, Vst, Vst0);
valfun_4({bs_private_append,{f,Fail},Bits,_Unit,Bin,_Flags,Dst}, Vst0) ->
- assert_durable_term(Bits, Vst0),
- assert_durable_term(Bin, Vst0),
+ assert_term(Bits, Vst0),
+ assert_term(Bin, Vst0),
Vst = branch_state(Fail, Vst0),
create_term(binary, bs_private_append, [Bin], Dst, Vst);
valfun_4({bs_put_string,Sz,_}, Vst) when is_integer(Sz) ->
Vst;
valfun_4({bs_put_binary,{f,Fail},Sz,_,_,Src}, Vst) ->
- assert_durable_term(Sz, Vst),
- assert_durable_term(Src, Vst),
+ assert_term(Sz, Vst),
+ assert_term(Src, Vst),
branch_state(Fail, Vst);
valfun_4({bs_put_float,{f,Fail},Sz,_,_,Src}, Vst) ->
- assert_durable_term(Sz, Vst),
- assert_durable_term(Src, Vst),
+ assert_term(Sz, Vst),
+ assert_term(Src, Vst),
branch_state(Fail, Vst);
valfun_4({bs_put_integer,{f,Fail},Sz,_,_,Src}, Vst) ->
- assert_durable_term(Sz, Vst),
- assert_durable_term(Src, Vst),
+ assert_term(Sz, Vst),
+ assert_term(Src, Vst),
branch_state(Fail, Vst);
valfun_4({bs_put_utf8,{f,Fail},_,Src}, Vst) ->
- assert_durable_term(Src, Vst),
+ assert_term(Src, Vst),
branch_state(Fail, Vst);
valfun_4({bs_put_utf16,{f,Fail},_,Src}, Vst) ->
- assert_durable_term(Src, Vst),
+ assert_term(Src, Vst),
branch_state(Fail, Vst);
valfun_4({bs_put_utf32,{f,Fail},_,Src}, Vst) ->
- assert_durable_term(Src, Vst),
+ assert_term(Src, Vst),
branch_state(Fail, Vst);
%% Map instructions.
valfun_4({put_map_assoc=Op,{f,Fail},Src,Dst,Live,{list,List}}, Vst) ->
@@ -1033,7 +1033,7 @@ verify_put_map(Op, Fail, Src, Dst, Live, List, Vst0) ->
assert_type(map, Src, Vst0),
verify_live(Live, Vst0),
verify_y_init(Vst0),
- [assert_durable_term(Term, Vst0) || Term <- List],
+ [assert_term(Term, Vst0) || Term <- List],
Vst1 = heap_alloc(0, Vst0),
Vst2 = branch_state(Fail, Vst1),
Vst = prune_x_regs(Live, Vst2),
diff --git a/lib/compiler/test/receive_SUITE.erl b/lib/compiler/test/receive_SUITE.erl
index 12108445f0..0038eb1a4b 100644
--- a/lib/compiler/test/receive_SUITE.erl
+++ b/lib/compiler/test/receive_SUITE.erl
@@ -25,7 +25,8 @@
init_per_group/2,end_per_group/2,
init_per_testcase/2,end_per_testcase/2,
export/1,recv/1,coverage/1,otp_7980/1,ref_opt/1,
- wait/1,recv_in_try/1,double_recv/1,receive_var_zero/1]).
+ wait/1,recv_in_try/1,double_recv/1,receive_var_zero/1,
+ match_built_terms/1]).
-include_lib("common_test/include/ct.hrl").
@@ -45,7 +46,8 @@ all() ->
groups() ->
[{p,test_lib:parallel(),
[recv,coverage,otp_7980,ref_opt,export,wait,
- recv_in_try,double_recv,receive_var_zero]}].
+ recv_in_try,double_recv,receive_var_zero,
+ match_built_terms]}].
init_per_suite(Config) ->
@@ -400,5 +402,29 @@ receive_var_zero(Config) when is_list(Config) ->
zero() -> 0.
+%% ERL-862; the validator would explode when a term was constructed in a
+%% receive guard.
+
+-define(MATCH_BUILT_TERM(Ref, Expr),
+ (fun() ->
+ Ref = make_ref(),
+ A = id($a),
+ B = id($b),
+ Built = id(Expr),
+ self() ! {Ref, A, B},
+ receive
+ {Ref, A, B} when Expr =:= Built ->
+ ok
+ after 5000 ->
+ ct:fail("Failed to match message with term built in "
+ "receive guard.")
+ end
+ end)()).
+
+match_built_terms(Config) when is_list(Config) ->
+ ?MATCH_BUILT_TERM(Ref, [A, B]),
+ ?MATCH_BUILT_TERM(Ref, {A, B}),
+ ?MATCH_BUILT_TERM(Ref, <<A, B>>),
+ ?MATCH_BUILT_TERM(Ref, #{ 1 => A, 2 => B}).
id(I) -> I.