diff options
Diffstat (limited to 'lib/compiler/src/beam_asm.erl')
| -rw-r--r-- | lib/compiler/src/beam_asm.erl | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/lib/compiler/src/beam_asm.erl b/lib/compiler/src/beam_asm.erl index f6ca7a0afb..a2f5dc674c 100644 --- a/lib/compiler/src/beam_asm.erl +++ b/lib/compiler/src/beam_asm.erl @@ -24,9 +24,42 @@ -export([module/4]). -export([encode/2]). +-export_type([fail/0,label/0,reg/0,src/0,module_code/0,function_name/0]). + -import(lists, [map/2,member/2,keymember/3,duplicate/2,splitwith/2]). -include("beam_opcodes.hrl"). +%% Common types for describing operands for BEAM instructions. +-type reg_num() :: 0..1023. +-type reg() :: {'x',reg_num()} | {'y',reg_num()}. +-type src() :: reg() | + {'literal',term()} | + {'atom',atom()} | + {'integer',integer()} | + 'nil' | + {'float',float()}. +-type label() :: pos_integer(). +-type fail() :: {'f',label() | 0}. + +%% asm_instruction() describes only the instructions that +%% are used in BEAM files (as opposed to internal instructions +%% used only during optimization). + +-type asm_instruction() :: atom() | tuple(). + +-type function_name() :: atom(). + +-type exports() :: [{function_name(),arity()}]. + +-type asm_function() :: + {'function',function_name(),arity(),label(),[asm_instruction()]}. + +-type module_code() :: + {module(),[_],[_],[asm_function()],pos_integer()}. + +-spec module(module_code(), exports(), [_], [compile:option()]) -> + {'ok',binary()}. + module(Code, Abst, SourceFile, Opts) -> {ok,assemble(Code, Abst, SourceFile, Opts)}. @@ -233,7 +266,12 @@ build_attributes(Opts, SourceFile, Attr, MD5) -> false -> Misc0; true -> [] end, - Compile = [{options,Opts},{version,?COMPILER_VSN}|Misc], + Compile = case member(deterministic, Opts) of + false -> + [{options,Opts},{version,?COMPILER_VSN}|Misc]; + true -> + [{version,?COMPILER_VSN}] + end, {term_to_binary(set_vsn_attribute(Attr, MD5)),term_to_binary(Compile)}. build_line_table(Dict) -> @@ -434,6 +472,8 @@ encode_alloc_list_1([{floats,Floats}|T], Dict, Acc0) -> encode_alloc_list_1([], Dict, Acc) -> {iolist_to_binary(Acc),Dict}. +-spec encode(non_neg_integer(), pos_integer()) -> iodata(). + encode(Tag, N) when N < 0 -> encode1(Tag, negative_to_bytes(N)); encode(Tag, N) when N < 16 -> |