diff options
Diffstat (limited to 'lib/compiler/src')
| -rw-r--r-- | lib/compiler/src/beam_except.erl | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/lib/compiler/src/beam_except.erl b/lib/compiler/src/beam_except.erl index eddb41a358..e5ec1bd904 100644 --- a/lib/compiler/src/beam_except.erl +++ b/lib/compiler/src/beam_except.erl @@ -49,13 +49,14 @@ function({function,Name,Arity,CLabel,Is0}) -> -record(st, {lbl, %func_info label - loc %location for func_info + loc, %location for func_info + arity %arity for function }). function_1(Is0) -> case Is0 of - [{label,Lbl},{line,Loc}|_] -> - St = #st{lbl=Lbl,loc=Loc}, + [{label,Lbl},{line,Loc},{func_info,_,_,Arity}|_] -> + St = #st{lbl=Lbl,loc=Loc,arity=Arity}, translate(Is0, St, []); [{label,_}|_] -> %% No line numbers. The source must be a .S file. @@ -74,14 +75,14 @@ translate_1(Ar, I, Is, St, [{line,_}=Line|Acc1]=Acc0) -> case dig_out(Ar, Acc1) of no -> translate(Is, St, [I|Acc0]); - {yes,function_clause,Acc2} -> + {yes,{function_clause,Arity},Acc2} -> case {Line,St} of - {{line,Loc},#st{lbl=Fi,loc=Loc}} -> + {{line,Loc},#st{lbl=Fi,loc=Loc,arity=Arity}} -> Instr = {jump,{f,Fi}}, translate(Is, St, [Instr|Acc2]); {_,_} -> %% This must be "error(function_clause, Args)" in - %% the Erlang source code. Don't translate. + %% the Erlang source code or a fun. Don't translate. translate(Is, St, [I|Acc0]) end; {yes,Instr,Acc2} -> @@ -135,11 +136,16 @@ fix_block(Is0, Words) -> [{set,[],[],{alloc,Live,{F1,F2,Needed-Words,F3}}}|Is]. dig_out_block_fc([{set,[],[],{alloc,Live,_}}|Bl]) -> - dig_out_fc(Bl, Live-1, nil); + case dig_out_fc(Bl, Live-1, nil) of + no -> + no; + yes -> + {yes,{function_clause,Live}} + end; dig_out_block_fc(_) -> no. dig_out_fc([{set,[Dst],[{x,Reg},Dst0],put_list}|Is], Reg, Dst0) -> dig_out_fc(Is, Reg-1, Dst); dig_out_fc([{set,[{x,0}],[{atom,function_clause}],move}], -1, {x,1}) -> - {yes,function_clause}; + yes; dig_out_fc(_, _, _) -> no. |