diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/compiler/src/beam_asm.erl | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/lib/compiler/src/beam_asm.erl b/lib/compiler/src/beam_asm.erl index bc1290f6fd..df09dcb06c 100644 --- a/lib/compiler/src/beam_asm.erl +++ b/lib/compiler/src/beam_asm.erl @@ -407,14 +407,14 @@ 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) -> - %% Conservatily assume that all integers whose absolute + %% Conservatively 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); + encode_literal(N, Dict); N =< -(1 bsl 128) -> - encode_arg({literal, N}, Dict); + encode_literal(N, Dict); true -> {encode(?tag_i, N), Dict} end; @@ -434,7 +434,7 @@ encode_arg({list, List}, Dict0) -> {L, Dict} = encode_list(List, Dict0, []), {[encode(?tag_z, 1), encode(?tag_u, length(List))|L], Dict}; encode_arg({float, Float}, Dict) when is_float(Float) -> - encode_arg({literal,Float}, Dict); + encode_literal(Float, Dict); encode_arg({fr,Fr}, Dict) -> {[encode(?tag_z, 2),encode(?tag_u, Fr)], Dict}; encode_arg({field_flags,Flags0}, Dict) -> @@ -442,12 +442,24 @@ encode_arg({field_flags,Flags0}, Dict) -> {encode(?tag_u, Flags), Dict}; encode_arg({alloc,List}, Dict) -> encode_alloc_list(List, Dict); -encode_arg({literal,Lit}, Dict0) -> - {Index,Dict} = beam_dict:literal(Lit, Dict0), - {[encode(?tag_z, 4),encode(?tag_u, Index)],Dict}; +encode_arg({literal,Lit}, Dict) -> + if + Lit =:= [] -> + encode_arg(nil, Dict); + is_atom(Lit) -> + encode_arg({atom,Lit}, Dict); + is_integer(Lit) -> + encode_arg({integer,Lit}, Dict); + true -> + encode_literal(Lit, Dict) + end; encode_arg(Int, Dict) when is_integer(Int) -> {encode(?tag_u, Int),Dict}. +encode_literal(Literal, Dict0) -> + {Index,Dict} = beam_dict:literal(Literal, Dict0), + {[encode(?tag_z, 4),encode(?tag_u, Index)],Dict}. + %%flag_to_bit(aligned) -> 16#01; %% No longer useful. flag_to_bit(little) -> 16#02; flag_to_bit(big) -> 16#00; |