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-rw-r--r--lib/compiler/src/beam_asm.erl12
-rw-r--r--lib/compiler/test/misc_SUITE.erl12
2 files changed, 13 insertions, 11 deletions
diff --git a/lib/compiler/src/beam_asm.erl b/lib/compiler/src/beam_asm.erl
index 453e00fce3..fa919ca862 100644
--- a/lib/compiler/src/beam_asm.erl
+++ b/lib/compiler/src/beam_asm.erl
@@ -407,7 +407,17 @@ encode_arg({atom, Atom}, Dict0) when is_atom(Atom) ->
{Index, Dict} = beam_dict:atom(Atom, Dict0),
{encode(?tag_a, Index), Dict};
encode_arg({integer, N}, Dict) ->
- {encode(?tag_i, N), Dict};
+ %% Conservatily assume that all integers whose absolute
+ %% value is greater than 1 bsl 128 will be bignums in
+ %% the runtime system.
+ if
+ N >= 1 bsl 128 ->
+ encode_arg({literal, N}, Dict);
+ N =< -(1 bsl 128) ->
+ encode_arg({literal, N}, Dict);
+ true ->
+ {encode(?tag_i, N), Dict}
+ end;
encode_arg(nil, Dict) ->
{encode(?tag_a, 0), Dict};
encode_arg({f, W}, Dict) ->
diff --git a/lib/compiler/test/misc_SUITE.erl b/lib/compiler/test/misc_SUITE.erl
index d93c5dda1e..4e39f4663e 100644
--- a/lib/compiler/test/misc_SUITE.erl
+++ b/lib/compiler/test/misc_SUITE.erl
@@ -359,9 +359,7 @@ integer_encoding_1(Config) ->
io:put_chars(Src, "t(Last) ->[\n"),
io:put_chars(Data, "[\n"),
- do_integer_encoding(-(id(1) bsl 10000), Src, Data),
- do_integer_encoding(id(1) bsl 10000, Src, Data),
- do_integer_encoding(1024, 0, Src, Data),
+ do_integer_encoding(137, 0, Src, Data),
_ = [begin
B = 1 bsl I,
do_integer_encoding(-B-1, Src, Data),
@@ -370,7 +368,7 @@ integer_encoding_1(Config) ->
do_integer_encoding(B-1, Src, Data),
do_integer_encoding(B, Src, Data),
do_integer_encoding(B+1, Src, Data)
- end || I <- lists:seq(1, 128)],
+ end || I <- lists:seq(1, 130)],
io:put_chars(Src, "Last].\n\n"),
ok = file:close(Src),
io:put_chars(Data, "0].\n\n"),
@@ -384,8 +382,6 @@ integer_encoding_1(Config) ->
%% Compare lists.
List = Mod:t(0),
{ok,[List]} = file:consult(DataFile),
- OneBsl10000 = id(1) bsl 10000,
- [-(1 bsl 10000),OneBsl10000|_] = List,
%% Cleanup.
file:delete(SrcFile),
@@ -404,7 +400,3 @@ do_integer_encoding(I, Src, Data) ->
Str = integer_to_list(I),
io:put_chars(Src, [Str,",\n"]),
io:put_chars(Data, [Str,",\n"]).
-
-
-id(I) -> I.
-