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erlang
2314-beam_clean-Add-types-and-specs.patch
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File 2314-beam_clean-Add-types-and-specs.patch of Package erlang
From 7d3502edc002ecf8c02eeacd313bf9353067ba0d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org> Date: Thu, 15 Dec 2016 09:20:12 +0100 Subject: [PATCH 14/21] beam_clean: Add types and specs --- lib/compiler/src/beam_clean.erl | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/lib/compiler/src/beam_clean.erl b/lib/compiler/src/beam_clean.erl index 10805a3c3..b736d39f9 100644 --- a/lib/compiler/src/beam_clean.erl +++ b/lib/compiler/src/beam_clean.erl @@ -26,6 +26,9 @@ -export([clean_labels/1]). -import(lists, [map/2,foldl/3,reverse/1,filter/2]). +-spec module(beam_utils:module_code(), [compile:option()]) -> + {'ok',beam_utils:module_code()}. + module({Mod,Exp,Attr,Fs0,_}, Opts) -> Order = [Lbl || {function,_,_,Lbl,_} <- Fs0], All = foldl(fun({function,_,_,Lbl,_}=Func,D) -> dict:store(Lbl, Func, D) end, @@ -39,6 +42,10 @@ module({Mod,Exp,Attr,Fs0,_}, Opts) -> {ok,{Mod,Exp,Attr,Fs,Lc}}. %% Remove all bs_save2/2 instructions not referenced by a bs_restore2/2. + +-spec bs_clean_saves([beam_utils:instruction()]) -> + [beam_utils:instruction()]. + bs_clean_saves(Is) -> Needed = bs_restores(Is, []), bs_clean_saves_1(Is, gb_sets:from_list(Needed), []). @@ -98,13 +105,18 @@ add_to_work_list(F, {Fs,Used}=Sets) -> %%% want to see the expanded code in a .S file. %%% --record(st, {lmap, %Translation tables for labels. - entry, %Number of entry label. - lc %Label counter +-type label() :: beam_asm:label(). + +-record(st, {lmap :: [{label(),label()}], %Translation tables for labels. + entry :: beam_asm:label(), %Number of entry label. + lc :: non_neg_integer() %Label counter }). +-spec clean_labels([beam_utils:instruction()]) -> + {[beam_utils:instruction()],pos_integer()}. + clean_labels(Fs0) -> - St0 = #st{lmap=[],lc=1}, + St0 = #st{lmap=[],entry=1,lc=1}, {Fs1,#st{lmap=Lmap0,lc=Lc}} = function_renumber(Fs0, St0, []), Lmap = gb_trees:from_orddict(ordsets:from_list(Lmap0)), Fs = function_replace(Fs1, Lmap, []), -- 2.11.0
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