diff options
Diffstat (limited to 'lib/compiler/src/beam_validator.erl')
| -rw-r--r-- | lib/compiler/src/beam_validator.erl | 46 |
1 files changed, 33 insertions, 13 deletions
diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl index 6219bc6894..7e5d86c177 100644 --- a/lib/compiler/src/beam_validator.erl +++ b/lib/compiler/src/beam_validator.erl @@ -85,8 +85,6 @@ format_error(Error) -> %%% Things currently not checked. XXX %%% %%% - Heap allocation for binaries. -%%% - That put_tuple is followed by the correct number of -%%% put instructions. %%% %% validate(Module, [Function]) -> [] | [Error] @@ -130,9 +128,8 @@ validate_0(Module, [{function,Name,Ar,Entry,Code}|Fs], Ft) -> throw:Error -> %% Controlled error. [Error|validate_0(Module, Fs, Ft)]; - Class:Error -> + Class:Error:Stack -> %% Crash. - Stack = erlang:get_stacktrace(), io:fwrite("Function: ~w/~w\n", [Name,Ar]), erlang:raise(Class, Error, Stack) end. @@ -149,7 +146,8 @@ validate_0(Module, [{function,Name,Ar,Entry,Code}|Fs], Ft) -> hf=0, %Available heap size for floats. fls=undefined, %Floating point state. ct=[], %List of hot catch/try labels - setelem=false %Previous instruction was setelement/3. + setelem=false, %Previous instruction was setelement/3. + puts_left=none %put/1 instructions left. }). -type label() :: integer(). @@ -294,6 +292,8 @@ valfun_1({bs_context_to_binary,Ctx}, #vst{current=#st{x=Xs}}=Vst) -> end; valfun_1(bs_init_writable=I, Vst) -> call(I, 1, Vst); +valfun_1(build_stacktrace=I, Vst) -> + call(I, 1, Vst); valfun_1({move,{y,_}=Src,{y,_}=Dst}, Vst) -> %% The stack trimming optimization may generate a move from an initialized %% but unassigned Y register to another Y register. @@ -339,11 +339,25 @@ valfun_1({put_list,A,B,Dst}, Vst0) -> Vst = eat_heap(2, Vst0), set_type_reg(cons, Dst, Vst); valfun_1({put_tuple,Sz,Dst}, Vst0) when is_integer(Sz) -> + Vst1 = eat_heap(1, Vst0), + Vst = set_type_reg(tuple_in_progress, Dst, Vst1), + #vst{current=St0} = Vst, + St = St0#st{puts_left={Sz,{Dst,{tuple,Sz}}}}, + Vst#vst{current=St}; +valfun_1({put,Src}, Vst0) -> + assert_term(Src, Vst0), Vst = eat_heap(1, Vst0), - set_type_reg({tuple,Sz}, Dst, Vst); -valfun_1({put,Src}, Vst) -> - assert_term(Src, Vst), - eat_heap(1, Vst); + #vst{current=St0} = Vst, + case St0 of + #st{puts_left=none} -> + error(not_building_a_tuple); + #st{puts_left={1,{Dst,Type}}} -> + St = St0#st{puts_left=none}, + set_type_reg(Type, Dst, Vst#vst{current=St}); + #st{puts_left={PutsLeft,Info}} when is_integer(PutsLeft) -> + St = St0#st{puts_left={PutsLeft-1,Info}}, + Vst#vst{current=St} + end; %% Instructions for optimization of selective receives. valfun_1({recv_mark,{f,Fail}}, Vst) when is_integer(Fail) -> Vst; @@ -523,6 +537,8 @@ valfun_4({bif,element,{f,Fail},[Pos,Tuple],Dst}, Vst0) -> valfun_4({bif,raise,{f,0},Src,_Dst}, Vst) -> validate_src(Src, Vst), kill_state(Vst); +valfun_4(raw_raise=I, Vst) -> + call(I, 3, Vst); valfun_4({bif,Op,{f,Fail},Src,Dst}, Vst0) -> validate_src(Src, Vst0), Vst = branch_state(Fail, Vst0), @@ -575,6 +591,12 @@ valfun_4({get_list,Src,D1,D2}, Vst0) -> assert_type(cons, Src, Vst0), Vst = set_type_reg(term, D1, Vst0), set_type_reg(term, D2, Vst); +valfun_4({get_hd,Src,Dst}, Vst) -> + assert_type(cons, Src, Vst), + set_type_reg(term, Dst, Vst); +valfun_4({get_tl,Src,Dst}, Vst) -> + assert_type(cons, Src, Vst), + set_type_reg(term, Dst, Vst); valfun_4({get_tuple_element,Src,I,Dst}, Vst) -> assert_type({tuple_element,I+1}, Src, Vst), set_type_reg(term, Dst, Vst); @@ -1271,6 +1293,7 @@ get_move_term_type(Src, Vst) -> initialized -> error({unassigned,Src}); {catchtag,_} -> error({catchtag,Src}); {trytag,_} -> error({trytag,Src}); + tuple_in_progress -> error({tuple_in_progress,Src}); Type -> Type end. @@ -1279,10 +1302,7 @@ get_move_term_type(Src, Vst) -> %% a standard Erlang type (no catch/try tags or match contexts). get_term_type(Src, Vst) -> - case get_term_type_1(Src, Vst) of - initialized -> error({unassigned,Src}); - {catchtag,_} -> error({catchtag,Src}); - {trytag,_} -> error({trytag,Src}); + case get_move_term_type(Src, Vst) of #ms{} -> error({match_context,Src}); Type -> Type end. |