diff options
Diffstat (limited to 'lib/compiler/src')
| -rw-r--r-- | lib/compiler/src/beam_bsm.erl | 5 | ||||
| -rw-r--r-- | lib/compiler/src/compile.erl | 7 | ||||
| -rw-r--r-- | lib/compiler/src/v3_core.erl | 44 | ||||
| -rw-r--r-- | lib/compiler/src/v3_kernel.erl | 4 |
4 files changed, 33 insertions, 27 deletions
diff --git a/lib/compiler/src/beam_bsm.erl b/lib/compiler/src/beam_bsm.erl index 4f76350269..62356928ae 100644 --- a/lib/compiler/src/beam_bsm.erl +++ b/lib/compiler/src/beam_bsm.erl @@ -421,7 +421,8 @@ btb_follow_branches([], _, D) -> D. btb_follow_branch(0, _Regs, D) -> D; btb_follow_branch(Lbl, Regs, #btb{ok_br=Br0,index=Li}=D) -> - case gb_sets:is_member(Lbl, Br0) of + Key = {Lbl,Regs}, + case gb_sets:is_member(Key, Br0) of true -> %% We have already followed this branch and it was OK. D; @@ -432,7 +433,7 @@ btb_follow_branch(Lbl, Regs, #btb{ok_br=Br0,index=Li}=D) -> btb_reaches_match_1(Is, Regs, D), %% Since we got back, this branch is OK. - D#btb{ok_br=gb_sets:insert(Lbl, Br),must_not_save=MustNotSave, + D#btb{ok_br=gb_sets:insert(Key, Br),must_not_save=MustNotSave, must_save=MustSave} end. diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl index 72f1a767ed..46917905de 100644 --- a/lib/compiler/src/compile.erl +++ b/lib/compiler/src/compile.erl @@ -1620,11 +1620,8 @@ output_encoding(F, #compile{encoding = Encoding}) -> ok = io:setopts(F, [{encoding, Encoding}]), ok = io:fwrite(F, <<"%% ~s\n">>, [epp:encoding_to_string(Encoding)]). -restore_expanded_types("P", Fs) -> - epp:restore_typed_record_fields(Fs); restore_expanded_types("E", {M,I,Fs0}) -> - Fs1 = restore_expand_module(Fs0), - Fs = epp:restore_typed_record_fields(Fs1), + Fs = restore_expand_module(Fs0), {M,I,Fs}; restore_expanded_types(_Ext, Code) -> Code. @@ -1636,6 +1633,8 @@ restore_expand_module([{attribute,Line,spec,[Arg]}|Fs]) -> [{attribute,Line,spec,Arg}|restore_expand_module(Fs)]; restore_expand_module([{attribute,Line,callback,[Arg]}|Fs]) -> [{attribute,Line,callback,Arg}|restore_expand_module(Fs)]; +restore_expand_module([{attribute,Line,record,[R]}|Fs]) -> + [{attribute,Line,record,R}|restore_expand_module(Fs)]; restore_expand_module([F|Fs]) -> [F|restore_expand_module(Fs)]; restore_expand_module([]) -> []. diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl index 8074456be2..72649e5c9f 100644 --- a/lib/compiler/src/v3_core.erl +++ b/lib/compiler/src/v3_core.erl @@ -1853,27 +1853,22 @@ uguard(Pg, Gs0, Ks, St0) -> %% uexprs([Kexpr], [KnownVar], State) -> {[Kexpr],State}. uexprs([#imatch{anno=A,pat=P0,arg=Arg,fc=Fc}|Les], Ks, St0) -> - %% Optimise for simple set of unbound variable. - case upattern(P0, Ks, St0) of - {#c_var{},[],_Pvs,_Pus,_} -> - %% Throw our work away and just set to iset. + case upat_is_new_var(P0, Ks) of + true -> + %% Assignment to a new variable. uexprs([#iset{var=P0,arg=Arg}|Les], Ks, St0); - _Other -> - %% Throw our work away and set to icase. - if - Les =:= [] -> - %% Need to explicitly return match "value", make - %% safe for efficiency. - {La0,Lps,St1} = force_safe(Arg, St0), - La = mark_compiler_generated(La0), - Mc = #iclause{anno=A,pats=[P0],guard=[],body=[La]}, - uexprs(Lps ++ [#icase{anno=A, - args=[La0],clauses=[Mc],fc=Fc}], Ks, St1); - true -> - Mc = #iclause{anno=A,pats=[P0],guard=[],body=Les}, - uexprs([#icase{anno=A,args=[Arg], - clauses=[Mc],fc=Fc}], Ks, St0) - end + false when Les =:= [] -> + %% Need to explicitly return match "value", make + %% safe for efficiency. + {La0,Lps,St1} = force_safe(Arg, St0), + La = mark_compiler_generated(La0), + Mc = #iclause{anno=A,pats=[P0],guard=[],body=[La]}, + uexprs(Lps ++ [#icase{anno=A, + args=[La0],clauses=[Mc],fc=Fc}], Ks, St1); + false -> + Mc = #iclause{anno=A,pats=[P0],guard=[],body=Les}, + uexprs([#icase{anno=A,args=[Arg], + clauses=[Mc],fc=Fc}], Ks, St0) end; uexprs([Le0|Les0], Ks, St0) -> {Le1,St1} = uexpr(Le0, Ks, St0), @@ -1881,6 +1876,15 @@ uexprs([Le0|Les0], Ks, St0) -> {[Le1|Les1],St2}; uexprs([], _, St) -> {[],St}. +%% upat_is_new_var(Pattern, [KnownVar]) -> true|false. +%% Test whether the pattern is a single, previously unknown +%% variable. + +upat_is_new_var(#c_var{name=V}, Ks) -> + not is_element(V, Ks); +upat_is_new_var(_, _) -> + false. + %% Mark a "safe" as compiler-generated. mark_compiler_generated(#c_cons{anno=A,hd=H,tl=T}) -> ann_c_cons([compiler_generated|A], mark_compiler_generated(H), diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl index 011748df3a..4446d5ff1d 100644 --- a/lib/compiler/src/v3_kernel.erl +++ b/lib/compiler/src/v3_kernel.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2013. All Rights Reserved. +%% Copyright Ericsson AB 1999-2015. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -143,8 +143,10 @@ attributes([]) -> []. include_attribute(type) -> false; include_attribute(spec) -> false; +include_attribute(callback) -> false; include_attribute(opaque) -> false; include_attribute(export_type) -> false; +include_attribute(record) -> false; include_attribute(_) -> true. function({#c_var{name={F,Arity}=FA},Body}, St0) -> |