aboutsummaryrefslogtreecommitdiffstats
path: root/lib
diff options
context:
space:
mode:
Diffstat (limited to 'lib')
-rw-r--r--lib/hipe/cerl/cerl_to_icode.erl8
-rw-r--r--lib/hipe/icode/hipe_beam_to_icode.erl51
-rw-r--r--lib/hipe/icode/hipe_icode_primops.erl37
-rw-r--r--lib/hipe/icode/hipe_icode_range.erl6
-rw-r--r--lib/hipe/rtl/hipe_rtl_arith.inc15
-rw-r--r--lib/hipe/rtl/hipe_rtl_arith_32.erl3
-rw-r--r--lib/hipe/rtl/hipe_rtl_binary.erl144
-rw-r--r--lib/hipe/rtl/hipe_rtl_binary_construct.erl196
-rw-r--r--lib/hipe/rtl/hipe_rtl_binary_match.erl121
-rw-r--r--lib/hipe/rtl/hipe_tagscheme.erl23
-rw-r--r--lib/hipe/test/bs_SUITE_data/bs_add.erl10
-rw-r--r--lib/hipe/test/bs_SUITE_data/bs_construct.erl161
12 files changed, 468 insertions, 307 deletions
diff --git a/lib/hipe/cerl/cerl_to_icode.erl b/lib/hipe/cerl/cerl_to_icode.erl
index 97b95f2e7c..ab131c2d01 100644
--- a/lib/hipe/cerl/cerl_to_icode.erl
+++ b/lib/hipe/cerl/cerl_to_icode.erl
@@ -794,9 +794,9 @@ bitstr_gen_op([V], #ctxt{fail=FL, class=guard}, SizeInfo, ConstInfo,
Type, Flags, Base, Offset) ->
SL = new_label(),
case SizeInfo of
- {all,_NewUnit, NewAlign, S1} ->
+ {all, NewUnit, NewAlign, S1} ->
Type = binary,
- Name = {bs_put_binary_all, Flags},
+ Name = {bs_put_binary_all, NewUnit, Flags},
Primop = {hipe_bs_primop, Name},
{add_code([icode_guardop([Offset], Primop,
[V, Base, Offset], SL, FL),
@@ -819,9 +819,9 @@ bitstr_gen_op([V], #ctxt{fail=FL, class=guard}, SizeInfo, ConstInfo,
bitstr_gen_op([V], _Ctxt, SizeInfo, ConstInfo, Type, Flags, Base,
Offset) ->
case SizeInfo of
- {all, _NewUnit, NewAlign, S} ->
+ {all, NewUnit, NewAlign, S} ->
Type = binary,
- Name = {bs_put_binary_all, Flags},
+ Name = {bs_put_binary_all, NewUnit, Flags},
Primop = {hipe_bs_primop, Name},
{add_code([icode_call_primop([Offset], Primop,
[V, Base, Offset])], S),
diff --git a/lib/hipe/icode/hipe_beam_to_icode.erl b/lib/hipe/icode/hipe_beam_to_icode.erl
index 0c7bdb788a..37c6ba9c60 100644
--- a/lib/hipe/icode/hipe_beam_to_icode.erl
+++ b/lib/hipe/icode/hipe_beam_to_icode.erl
@@ -881,6 +881,15 @@ trans_fun([{bs_init_bits,{f,Lbl},Size,_Words,_LiveRegs,{field_flags,Flags0},X}|
trans_fun([{bs_add, {f,Lbl}, [Old,New,Unit], Res}|Instructions], Env) ->
Dst = mk_var(Res),
Temp = mk_var(new),
+ {FailLblName, FailCode} =
+ if Lbl =:= 0 ->
+ FailLbl = mk_label(new),
+ {hipe_icode:label_name(FailLbl),
+ [FailLbl,
+ hipe_icode:mk_fail([hipe_icode:mk_const(badarg)], error)]};
+ true ->
+ {map_label(Lbl), []}
+ end,
MultIs =
case {New,Unit} of
{{integer, NewInt}, _} ->
@@ -890,40 +899,26 @@ trans_fun([{bs_add, {f,Lbl}, [Old,New,Unit], Res}|Instructions], Env) ->
[hipe_icode:mk_move(Temp, NewVar)];
_ ->
NewVar = mk_var(New),
- if Lbl =:= 0 ->
- [hipe_icode:mk_primop([Temp], '*',
- [NewVar, hipe_icode:mk_const(Unit)])];
- true ->
- Succ = mk_label(new),
- [hipe_icode:mk_primop([Temp], '*',
- [NewVar, hipe_icode:mk_const(Unit)],
- hipe_icode:label_name(Succ), map_label(Lbl)),
- Succ]
- end
+ Succ = mk_label(new),
+ [hipe_icode:mk_primop([Temp], '*',
+ [NewVar, hipe_icode:mk_const(Unit)],
+ hipe_icode:label_name(Succ), FailLblName),
+ Succ]
end,
Succ2 = mk_label(new),
- {FailLblName, FailCode} =
- if Lbl =:= 0 ->
- FailLbl = mk_label(new),
- {hipe_icode:label_name(FailLbl),
- [FailLbl,
- hipe_icode:mk_fail([hipe_icode:mk_const(badarg)], error)]};
- true ->
- {map_label(Lbl), []}
- end,
IsPos =
[hipe_icode:mk_if('>=', [Temp, hipe_icode:mk_const(0)],
hipe_icode:label_name(Succ2), FailLblName)] ++
- FailCode ++ [Succ2],
- AddI =
+ FailCode ++ [Succ2],
+ AddRhs =
case Old of
- {integer,OldInt} ->
- hipe_icode:mk_primop([Dst], '+', [Temp, hipe_icode:mk_const(OldInt)]);
- _ ->
- OldVar = mk_var(Old),
- hipe_icode:mk_primop([Dst], '+', [Temp, OldVar])
+ {integer,OldInt} -> hipe_icode:mk_const(OldInt);
+ _ -> mk_var(Old)
end,
- MultIs ++ IsPos ++ [AddI|trans_fun(Instructions, Env)];
+ Succ3 = mk_label(new),
+ AddI = hipe_icode:mk_primop([Dst], '+', [Temp, AddRhs],
+ hipe_icode:label_name(Succ3), FailLblName),
+ MultIs ++ IsPos ++ [AddI,Succ3|trans_fun(Instructions, Env)];
%%--------------------------------------------------------------------
%% Bit syntax instructions added in R12B-5 (Fall 2008)
%%--------------------------------------------------------------------
@@ -1306,7 +1301,7 @@ trans_bin([{bs_put_binary,{f,Lbl},Size,Unit,{field_flags,Flags},Source}|
{Name, Args, Env2} =
case Size of
{atom,all} -> %% put all bits
- {{bs_put_binary_all, Flags}, [Src,Base,Offset], Env};
+ {{bs_put_binary_all, Unit, Flags}, [Src,Base,Offset], Env};
{integer,NoBits} when is_integer(NoBits), NoBits >= 0 ->
%% Create a N*Unit bits subbinary
{{bs_put_binary, NoBits*Unit, Flags}, [Src,Base,Offset], Env};
diff --git a/lib/hipe/icode/hipe_icode_primops.erl b/lib/hipe/icode/hipe_icode_primops.erl
index ffb51b2ea4..84aae30291 100644
--- a/lib/hipe/icode/hipe_icode_primops.erl
+++ b/lib/hipe/icode/hipe_icode_primops.erl
@@ -116,7 +116,7 @@ is_safe({hipe_bs_primop, {bs_init, _, _}}) -> false;
is_safe({hipe_bs_primop, {bs_init_bits, _}}) -> false;
is_safe({hipe_bs_primop, {bs_init_bits, _, _}}) -> false;
is_safe({hipe_bs_primop, {bs_put_binary, _, _}}) -> false;
-is_safe({hipe_bs_primop, {bs_put_binary_all, _}}) -> false;
+is_safe({hipe_bs_primop, {bs_put_binary_all, _, _}}) -> false;
is_safe({hipe_bs_primop, {bs_put_float, _, _, _}}) -> false;
is_safe({hipe_bs_primop, {bs_put_integer, _, _, _}}) -> false;
is_safe({hipe_bs_primop, {bs_put_string, _, _}}) -> false;
@@ -219,7 +219,7 @@ fails({hipe_bs_primop, {bs_init, _, _}}) -> true;
fails({hipe_bs_primop, {bs_init_bits, _}}) -> true;
fails({hipe_bs_primop, {bs_init_bits, _, _}}) -> true;
fails({hipe_bs_primop, {bs_put_binary, _, _}}) -> true;
-fails({hipe_bs_primop, {bs_put_binary_all, _}}) -> true;
+fails({hipe_bs_primop, {bs_put_binary_all, _, _}}) -> true;
fails({hipe_bs_primop, {bs_put_float, _, _, _}}) -> true;
fails({hipe_bs_primop, {bs_put_integer, _, _, _}}) -> true;
fails({hipe_bs_primop, {bs_put_string, _, _}}) -> true;
@@ -265,8 +265,8 @@ pp(Dev, Op) ->
io:format(Dev, "gc_test<~w>", [N]);
{hipe_bs_primop, BsOp} ->
case BsOp of
- {bs_put_binary_all, Flags} ->
- io:format(Dev, "bs_put_binary_all<~w>", [Flags]);
+ {bs_put_binary_all, Unit, Flags} ->
+ io:format(Dev, "bs_put_binary_all<~w, ~w>", [Unit,Flags]);
{bs_put_binary, Size} ->
io:format(Dev, "bs_put_binary<~w>", [Size]);
{bs_put_binary, Flags, Size} ->
@@ -505,11 +505,13 @@ type(Primop, Args) ->
NewMatchState =
erl_types:t_matchstate_update_present(NewBinType, MatchState),
if Signed =:= 0 ->
- erl_types:t_product([erl_types:t_from_range(0, 1 bsl Size - 1),
+ UpperBound = inf_add(safe_bsl(1, Size), -1),
+ erl_types:t_product([erl_types:t_from_range(0, UpperBound),
NewMatchState]);
Signed =:= 4 ->
- erl_types:t_product([erl_types:t_from_range(- (1 bsl (Size-1)),
- (1 bsl (Size-1)) - 1),
+ erl_types:t_product([erl_types:t_from_range(
+ inf_inv(safe_bsl(1, Size-1)),
+ inf_add(safe_bsl(1, Size-1), -1)),
NewMatchState])
end;
[_Arg] ->
@@ -628,8 +630,9 @@ type(Primop, Args) ->
[_SrcType, _BitsType, _Base, Type] ->
erl_types:t_bitstr_concat(Type, erl_types:t_bitstr(Size, 0))
end;
- {hipe_bs_primop, {bs_put_binary_all, _Flags}} ->
- [SrcType, _Base, Type] = Args,
+ {hipe_bs_primop, {bs_put_binary_all, Unit, _Flags}} ->
+ [SrcType0, _Base, Type] = Args,
+ SrcType = erl_types:t_inf(erl_types:t_bitstr(Unit, 0), SrcType0),
erl_types:t_bitstr_concat(SrcType,Type);
{hipe_bs_primop, {bs_put_string, _, Size}} ->
[_Base, Type] = Args,
@@ -965,3 +968,19 @@ check_fun_args(_, _) ->
match_bin(Pattern, Match) ->
erl_types:t_bitstr_match(Pattern, Match).
+
+safe_bsl(0, _) -> 0;
+safe_bsl(Base, Shift) when Shift =< 128 -> Base bsl Shift;
+safe_bsl(Base, _Shift) when Base > 0 -> pos_inf;
+safe_bsl(Base, _Shift) when Base < 0 -> neg_inf.
+
+inf_inv(pos_inf) -> neg_inf;
+inf_inv(neg_inf) -> pos_inf;
+inf_inv(Number) -> -Number.
+
+inf_add(pos_inf, _Number) -> pos_inf;
+inf_add(neg_inf, _Number) -> neg_inf;
+inf_add(_Number, pos_inf) -> pos_inf;
+inf_add(_Number, neg_inf) -> neg_inf;
+inf_add(Number1, Number2) when is_integer(Number1), is_integer(Number2) ->
+ Number1 + Number2.
diff --git a/lib/hipe/icode/hipe_icode_range.erl b/lib/hipe/icode/hipe_icode_range.erl
index ba5fa1bfd7..9a20527a83 100644
--- a/lib/hipe/icode/hipe_icode_range.erl
+++ b/lib/hipe/icode/hipe_icode_range.erl
@@ -1202,11 +1202,11 @@ basic_type(#unsafe_update_element{}) -> not_analysed.
analyse_bs_get_integer(Size, Flags, true) ->
Signed = Flags band 4,
if Signed =:= 0 ->
- Max = 1 bsl Size - 1,
+ Max = inf_add(inf_bsl(1, Size), -1),
Min = 0;
true ->
- Max = 1 bsl (Size-1) - 1,
- Min = -(1 bsl (Size-1))
+ Max = inf_add(inf_bsl(1, Size-1), -1),
+ Min = inf_inv(inf_bsl(1, Size-1))
end,
{Min, Max};
analyse_bs_get_integer(Size, Flags, false) when is_integer(Size),
diff --git a/lib/hipe/rtl/hipe_rtl_arith.inc b/lib/hipe/rtl/hipe_rtl_arith.inc
index 1f455f47ed..1dff56b074 100644
--- a/lib/hipe/rtl/hipe_rtl_arith.inc
+++ b/lib/hipe/rtl/hipe_rtl_arith.inc
@@ -30,13 +30,13 @@
%% Returns a tuple
%% {Res, Sign, Zero, Overflow, Carry}
%% Res will be a number in the range
-%% MAX_SIGNED_INT >= Res >= MIN_SIGNED_INT
+%% MAX_UNSIGNED_INT >= Res >= 0
%% The other four values are flags that are either true or false
%%
eval_alu(Op, Arg1, Arg2)
- when Arg1 =< ?MAX_SIGNED_INT,
+ when Arg1 =< ?MAX_UNSIGNED_INT,
Arg1 >= ?MIN_SIGNED_INT,
- Arg2 =< ?MAX_SIGNED_INT,
+ Arg2 =< ?MAX_UNSIGNED_INT,
Arg2 >= ?MIN_SIGNED_INT ->
Sign1 = sign_bit(Arg1),
@@ -111,7 +111,7 @@ eval_alu(Op, Arg1, Arg2)
Res = N = Z = V = C = 0,
?EXIT({"unknown alu op", Op})
end,
- {two_comp_to_erl(Res), N, Z, V, C};
+ {Res, N, Z, V, C};
eval_alu(Op, Arg1, Arg2) ->
?EXIT({argument_overflow,Op,Arg1,Arg2}).
@@ -162,16 +162,9 @@ eval_cond(Cond, Arg1, Arg2) ->
sign_bit(Val) ->
((Val bsr ?SIGN_BIT) band 1) =:= 1.
-two_comp_to_erl(V) ->
- if V > ?MAX_SIGNED_INT ->
- - ((?MAX_UNSIGNED_INT + 1) - V);
- true -> V
- end.
-
shiftmask(Arg) ->
Setbits = ?BITS - Arg,
(1 bsl Setbits) - 1.
zero(Val) ->
Val =:= 0.
-
diff --git a/lib/hipe/rtl/hipe_rtl_arith_32.erl b/lib/hipe/rtl/hipe_rtl_arith_32.erl
index 572556be1c..d790a8b981 100644
--- a/lib/hipe/rtl/hipe_rtl_arith_32.erl
+++ b/lib/hipe/rtl/hipe_rtl_arith_32.erl
@@ -24,7 +24,8 @@
%% Filename : hipe_rtl_arith_32.erl
%% Module : hipe_rtl_arith_32
%% Purpose : To implement 32-bit RTL-arithmetic
-%% Notes : The arithmetic works on 32-bit signed integers.
+%% Notes : The arithmetic works on 32-bit signed and unsigned
+%% integers.
%% The implementation is taken from the implementation
%% of arithmetic on SPARC.
%% XXX: This code is seldom used, and hence also
diff --git a/lib/hipe/rtl/hipe_rtl_binary.erl b/lib/hipe/rtl/hipe_rtl_binary.erl
index b549073050..9cbab08ee2 100644
--- a/lib/hipe/rtl/hipe_rtl_binary.erl
+++ b/lib/hipe/rtl/hipe_rtl_binary.erl
@@ -1,3 +1,4 @@
+%% -*- erlang-indent-level: 2 -*-
%%%
%%% %CopyrightBegin%
%%%
@@ -28,11 +29,20 @@
-export([gen_rtl/7]).
+-export([floorlog2/1, get_word_integer/4, make_size/3, make_size/4]).
+
+%%--------------------------------------------------------------------
+
+-define(BYTE_SHIFT, 3). %% Turn bits into bytes or vice versa
+-define(BYTE_SIZE, 8).
+
+%%--------------------------------------------------------------------
+
gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SysLimName, ConstTab) ->
case type_of_operation(BsOP) of
match ->
{hipe_rtl_binary_match:gen_rtl(
- BsOP, Dst, Args, TrueLblName, FalseLblName),ConstTab};
+ BsOP, Dst, Args, TrueLblName, FalseLblName),ConstTab};
construct ->
hipe_rtl_binary_construct:gen_rtl(
BsOP, Dst, Args, TrueLblName, FalseLblName, SysLimName, ConstTab)
@@ -62,7 +72,7 @@ type_of_operation({bs_init,_,_}) -> construct;
type_of_operation({bs_init_bits,_}) -> construct;
type_of_operation({bs_init_bits,_,_}) -> construct;
type_of_operation({bs_put_binary,_,_}) -> construct;
-type_of_operation({bs_put_binary_all,_}) -> construct;
+type_of_operation({bs_put_binary_all,_,_}) -> construct;
type_of_operation({bs_put_float,_,_,_}) -> construct;
type_of_operation({bs_put_integer,_,_,_}) -> construct;
type_of_operation({bs_put_string,_,_}) -> construct;
@@ -79,3 +89,133 @@ type_of_operation(bs_final) -> construct;
type_of_operation({bs_append,_,_,_,_}) -> construct;
type_of_operation({bs_private_append,_,_}) -> construct;
type_of_operation(bs_init_writable) -> construct.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%
+%% Small utility functions:
+%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+create_lbls(X) when X > 0 ->
+ [hipe_rtl:mk_new_label()|create_lbls(X-1)];
+create_lbls(0) ->
+ [].
+
+%%------------------------------------------------------------------------------
+%% Utilities used by both hipe_rtl_binary_construct and hipe_rtl_binary_match
+%%------------------------------------------------------------------------------
+
+get_word_integer(Var, Register, SystemLimitLblName, FalseLblName) ->
+ [EndLbl] = create_lbls(1),
+ EndName = hipe_rtl:label_name(EndLbl),
+ get_word_integer(Var, Register,SystemLimitLblName, FalseLblName, EndName, EndName,
+ [EndLbl]).
+
+get_word_integer(Var, Register, SystemLimitLblName, FalseLblName, TrueLblName,
+ BigLblName, Tail) ->
+ [FixnumLbl, NotFixnumLbl, BignumLbl, SuccessLbl] = create_lbls(4),
+ [hipe_tagscheme:test_fixnum(Var, hipe_rtl:label_name(FixnumLbl),
+ hipe_rtl:label_name(NotFixnumLbl), 0.99),
+ FixnumLbl,
+ hipe_tagscheme:fixnum_ge(Var, hipe_rtl:mk_imm(hipe_tagscheme:mk_fixnum(0)),
+ hipe_rtl:label_name(SuccessLbl), FalseLblName,
+ 0.99),
+ SuccessLbl,
+ hipe_tagscheme:untag_fixnum(Register, Var),
+ hipe_rtl:mk_goto(TrueLblName),
+ NotFixnumLbl,
+ hipe_tagscheme:test_pos_bignum_arity(Var, 1, hipe_rtl:label_name(BignumLbl),
+ FalseLblName, SystemLimitLblName, 0.99),
+ BignumLbl,
+ hipe_tagscheme:unsafe_get_one_word_pos_bignum(Register, Var),
+ hipe_rtl:mk_goto(BigLblName) | Tail].
+
+make_size(UnitImm, BitsVar, FailLblName) ->
+ make_size(UnitImm, BitsVar, FailLblName, FailLblName).
+
+make_size(1, BitsVar, OverflowLblName, FalseLblName) ->
+ DstReg = hipe_rtl:mk_new_reg_gcsafe(),
+ {get_word_integer(BitsVar, DstReg, OverflowLblName, FalseLblName), DstReg};
+make_size(?BYTE_SIZE, BitsVar, OverflowLblName, FalseLblName) ->
+ DstReg = hipe_rtl:mk_new_reg_gcsafe(),
+ [FixnumLbl, BignumLbl] = create_lbls(2),
+ WordBits = hipe_rtl_arch:word_size() * ?BYTE_SIZE,
+ FixnumLblName = hipe_rtl:label_name(FixnumLbl),
+ Tail = [BignumLbl,
+ hipe_rtl:mk_branch(DstReg, 'ltu',
+ hipe_rtl:mk_imm(1 bsl (WordBits - ?BYTE_SHIFT)),
+ FixnumLblName, OverflowLblName, 0.99),
+ FixnumLbl,
+ hipe_rtl:mk_alu(DstReg, DstReg, sll, hipe_rtl:mk_imm(?BYTE_SHIFT))],
+ Code = get_word_integer(BitsVar, DstReg, OverflowLblName, FalseLblName,
+ FixnumLblName, hipe_rtl:label_name(BignumLbl), Tail),
+ {Code, DstReg};
+make_size(UnitImm, BitsVar, OverflowLblName, FalseLblName) ->
+ DstReg = hipe_rtl:mk_new_reg_gcsafe(),
+ UnitList = number2list(UnitImm),
+ Code = multiply_code(UnitList, BitsVar, DstReg, OverflowLblName, FalseLblName),
+ {Code, DstReg}.
+
+multiply_code(List=[Head|_Tail], Variable, Result, OverflowLblName,
+ FalseLblName) ->
+ Test = set_high(Head),
+ Tmp1 = hipe_rtl:mk_new_reg(),
+ SuccessLbl = hipe_rtl:mk_new_label(),
+ Register = hipe_rtl:mk_new_reg(),
+ Code = [hipe_rtl:mk_move(Result, hipe_rtl:mk_imm(0))|
+ get_word_integer(Variable, Register, OverflowLblName, FalseLblName)]
+ ++
+ [hipe_rtl:mk_alub(Tmp1, Register, 'and', hipe_rtl:mk_imm(Test),
+ eq, hipe_rtl:label_name(SuccessLbl),
+ OverflowLblName, 0.99),
+ SuccessLbl],
+ multiply_code(List, Register, Result, OverflowLblName, Tmp1, Code).
+
+multiply_code([ShiftSize|Rest], Register, Result, OverflowLblName, Tmp1,
+ OldCode) ->
+ SuccessLbl = hipe_rtl:mk_new_label(),
+ Code =
+ OldCode ++
+ [hipe_rtl:mk_alu(Tmp1, Register, sll, hipe_rtl:mk_imm(ShiftSize)),
+ hipe_rtl:mk_alub(Result, Tmp1, 'add', Result, not_overflow,
+ hipe_rtl:label_name(SuccessLbl), OverflowLblName, 0.99),
+ SuccessLbl],
+ multiply_code(Rest, Register, Result, OverflowLblName, Tmp1, Code);
+multiply_code([], _Register, _Result, _OverflowLblName, _Tmp1, Code) ->
+ Code.
+
+set_high(X) ->
+ WordBits = hipe_rtl_arch:word_size() * ?BYTE_SIZE,
+ set_high(min(X, WordBits), WordBits, 0).
+
+set_high(0, _, Y) ->
+ Y;
+set_high(X, WordBits, Y) ->
+ set_high(X-1, WordBits, Y+(1 bsl (WordBits-X))).
+
+
+number2list(X) when is_integer(X), X >= 0 ->
+ number2list(X, []).
+
+number2list(1, Acc) ->
+ lists:reverse([0|Acc]);
+number2list(0, Acc) ->
+ lists:reverse(Acc);
+number2list(X, Acc) ->
+ F = floorlog2(X),
+ number2list(X-(1 bsl F), [F|Acc]).
+
+floorlog2(X) ->
+ %% Double-precision floats do not have enough precision to make floorlog2
+ %% exact for integers larger than 2^47.
+ Approx = round(math:log(X)/math:log(2)-0.5),
+ floorlog2_refine(X, Approx).
+
+floorlog2_refine(X, Approx) ->
+ if (1 bsl Approx) > X ->
+ floorlog2_refine(X, Approx - 1);
+ (1 bsl (Approx+1)) > X ->
+ Approx;
+ true ->
+ floorlog2_refine(X, Approx + 1)
+ end.
diff --git a/lib/hipe/rtl/hipe_rtl_binary_construct.erl b/lib/hipe/rtl/hipe_rtl_binary_construct.erl
index 692bad7d96..4403aa552f 100644
--- a/lib/hipe/rtl/hipe_rtl_binary_construct.erl
+++ b/lib/hipe/rtl/hipe_rtl_binary_construct.erl
@@ -34,6 +34,10 @@
get_field_from_term/3,
set_field_from_pointer/3,
get_field_from_pointer/3]).
+
+-import(hipe_rtl_binary, [floorlog2/1,
+ get_word_integer/4,
+ make_size/4]).
%%-------------------------------------------------------------------------
-include("../main/hipe.hrl").
@@ -94,10 +98,11 @@ gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SystemLimitLblName, ConstTab
var_init_bits(Size, Dst0, Base, Offset, TrueLblName,
SystemLimitLblName, FalseLblName);
- {bs_put_binary_all, _Flags} ->
+ {bs_put_binary_all, Unit, _Flags} ->
[Src, Base, Offset] = Args,
[NewOffset] = get_real(Dst),
- put_binary_all(NewOffset, Src, Base, Offset, TrueLblName, FalseLblName);
+ put_binary_all(NewOffset, Src, Base, Offset, Unit,
+ TrueLblName, FalseLblName);
{bs_put_binary, Size, _Flags} ->
case is_illegal_const(Size) of
@@ -110,7 +115,9 @@ gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SystemLimitLblName, ConstTab
put_static_binary(NewOffset, Src, Size, Base, Offset,
TrueLblName, FalseLblName);
[Src, Bits, Base, Offset] ->
- {SizeCode, SizeReg} = make_size(Size, Bits, FalseLblName),
+ {SizeCode, SizeReg} = make_size(Size, Bits,
+ SystemLimitLblName,
+ FalseLblName),
InCode = put_dynamic_binary(NewOffset, Src, SizeReg, Base,
Offset, TrueLblName, FalseLblName),
SizeCode ++ InCode
@@ -132,7 +139,9 @@ gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SystemLimitLblName, ConstTab
put_float(NewOffset, Src, Base, Offset, Size, CCode, Aligned,
LittleEndian, ConstInfo, TrueLblName);
[Src, Bits, Base, Offset] ->
- {SizeCode, SizeReg} = make_size(Size, Bits, FalseLblName),
+ {SizeCode, SizeReg} = make_size(Size, Bits,
+ SystemLimitLblName,
+ FalseLblName),
InCode = float_c_code(NewOffset, Src, Base, Offset, SizeReg,
Flags, TrueLblName, FalseLblName),
SizeCode ++ InCode
@@ -161,6 +170,7 @@ gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SystemLimitLblName, ConstTab
CCode, Aligned, LittleEndian, TrueLblName);
[Src, Bits, Base, Offset] ->
{SizeCode, SizeReg} = make_size(Size, Bits,
+ SystemLimitLblName,
FalseLblName),
CCode = int_c_code(NewOffset, Src, Base,
Offset, SizeReg, Flags,
@@ -209,6 +219,7 @@ gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SystemLimitLblName, ConstTab
TrueLblName);
[Src, Bits, Base, Offset] ->
{SizeCode, SizeReg} = make_size(Size, Bits,
+ SystemLimitLblName,
FalseLblName),
CCode = int_c_code(NewOffset, Src, Base,
Offset, SizeReg, Flags,
@@ -293,7 +304,7 @@ gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SystemLimitLblName, ConstTab
[SizeReg] = create_regs(1),
[Base] = create_unsafe_regs(1),
[hipe_rtl:mk_gctest(?PROC_BIN_WORDSIZE + ?SUB_BIN_WORDSIZE),
- check_and_untag_fixnum(Size, SizeReg, FalseLblName),
+ get_word_integer(Size, SizeReg, SystemLimitLblName, FalseLblName),
allocate_writable(DstVar, Base, SizeReg, Zero, Zero),
hipe_rtl:mk_goto(TrueLblName)];
@@ -305,7 +316,7 @@ gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SystemLimitLblName, ConstTab
SubBinSize = {sub_binary, binsize},
[get_field_from_term({sub_binary, orig}, Bin, ProcBin),
get_field_from_term(SubBinSize, Bin, SubSize),
- check_and_untag_fixnum(Size, SizeReg, FalseLblName),
+ get_word_integer(Size, SizeReg, SystemLimitLblName, FalseLblName),
realloc_binary(SizeReg, ProcBin, Base),
calculate_sizes(Bin, SizeReg, Offset, EndSubSize, EndSubBitSize),
set_field_from_term(SubBinSize, Bin, EndSubSize),
@@ -313,20 +324,21 @@ gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SystemLimitLblName, ConstTab
hipe_rtl:mk_move(DstVar, Bin),
hipe_rtl:mk_goto(TrueLblName)];
- {bs_append, _U, _F, _B, _Bla} ->
+ {bs_append, _U, _F, Unit, _Bla} ->
[Size, Bin] = Args,
[DstVar, Base, Offset] = Dst,
[ProcBin] = create_vars(1),
[Flags, SizeReg, IsWritable, EndSubSize, EndSubBitSize] =
create_regs(5),
- [ContLbl,ContLbl2,ContLbl3,WritableLbl,NotWritableLbl] = Lbls =
- create_lbls(5),
- [ContLblName, ContLbl2Name, ContLbl3Name, Writable, NotWritable] =
+ [ContLbl,ContLbl2,ContLbl3,ContLbl4,WritableLbl,NotWritableLbl] =
+ Lbls = create_lbls(6),
+ [ContLblName, ContLbl2Name, ContLbl3Name, ContLbl4Name,
+ Writable, NotWritable] =
[hipe_rtl:label_name(Lbl) || Lbl <- Lbls],
Zero = hipe_rtl:mk_imm(0),
SubIsWritable = {sub_binary, is_writable},
[hipe_rtl:mk_gctest(?SUB_BIN_WORDSIZE + ?PROC_BIN_WORDSIZE),
- check_and_untag_fixnum(Size, SizeReg, FalseLblName),
+ get_word_integer(Size, SizeReg, SystemLimitLblName, FalseLblName),
hipe_tagscheme:test_bitstr(Bin, ContLblName, FalseLblName, 0.99),
ContLbl,
hipe_tagscheme:test_subbinary(Bin,ContLbl2Name, NotWritable),
@@ -339,17 +351,19 @@ gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SystemLimitLblName, ConstTab
get_field_from_term({proc_bin, flags}, ProcBin, Flags),
hipe_rtl:mk_alub(Flags, Flags, 'and',
hipe_rtl:mk_imm(?PB_IS_WRITABLE),
- eq, NotWritable, Writable, 0.01),
+ eq, NotWritable, ContLbl4Name, 0.01),
+ ContLbl4,
+ calculate_sizes(Bin, SizeReg, Offset, EndSubSize, EndSubBitSize),
+ is_divisible(Offset, Unit, Writable, FalseLblName),
WritableLbl,
set_field_from_term(SubIsWritable, Bin, Zero),
realloc_binary(SizeReg, ProcBin, Base),
- calculate_sizes(Bin, SizeReg, Offset, EndSubSize, EndSubBitSize),
hipe_tagscheme:mk_sub_binary(DstVar, EndSubSize, Zero,
EndSubBitSize, Zero,
hipe_rtl:mk_imm(1), ProcBin),
hipe_rtl:mk_goto(TrueLblName),
NotWritableLbl,
- not_writable_code(Bin, SizeReg, DstVar, Base, Offset,
+ not_writable_code(Bin, SizeReg, DstVar, Base, Offset, Unit,
TrueLblName, FalseLblName)]
end,
{Code, ConstTab}
@@ -361,7 +375,7 @@ gen_rtl(BsOP, Dst, Args, TrueLblName, FalseLblName, SystemLimitLblName, ConstTab
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-not_writable_code(Bin, SizeReg, Dst, Base, Offset,
+not_writable_code(Bin, SizeReg, Dst, Base, Offset, Unit,
TrueLblName, FalseLblName) ->
[SrcBase] = create_unsafe_regs(1),
[SrcOffset, SrcSize, TotSize, TotBytes, UsedBytes] = create_regs(5),
@@ -372,13 +386,13 @@ not_writable_code(Bin, SizeReg, Dst, Base, Offset,
hipe_rtl:mk_alu(TotBytes, TotSize, add, ?LOW_BITS),
hipe_rtl:mk_alu(TotBytes, TotBytes, srl, ?BYTE_SHIFT),
hipe_rtl:mk_alu(UsedBytes, TotBytes, sll, hipe_rtl:mk_imm(1)),
- hipe_rtl:mk_branch(UsedBytes, ge, hipe_rtl:mk_imm(256),
+ hipe_rtl:mk_branch(UsedBytes, geu, hipe_rtl:mk_imm(256),
AllLblName, IncLblName),
IncLbl,
hipe_rtl:mk_move(UsedBytes, hipe_rtl:mk_imm(256)),
AllLbl,
allocate_writable(Dst, Base, UsedBytes, TotBytes, TotSize),
- put_binary_all(Offset, Bin, Base, hipe_rtl:mk_imm(0),
+ put_binary_all(Offset, Bin, Base, hipe_rtl:mk_imm(0), Unit,
TrueLblName, FalseLblName)].
allocate_writable(Dst, Base, UsedBytes, TotBytes, TotSize) ->
@@ -397,16 +411,6 @@ allocate_writable(Dst, Base, UsedBytes, TotBytes, TotSize) ->
hipe_tagscheme:mk_sub_binary(Dst, EndSubSize, Zero, EndSubBitSize,
Zero, hipe_rtl:mk_imm(1), ProcBin)].
-check_and_untag_fixnum(Size, SizeReg, FalseLblName) ->
- [ContLbl,NextLbl] = Lbls = create_lbls(2),
- [ContLblName,NextLblName] = get_label_names(Lbls),
- [hipe_tagscheme:test_fixnum(Size, ContLblName, FalseLblName, 0.99),
- ContLbl,
- hipe_tagscheme:untag_fixnum(SizeReg,Size),
- hipe_rtl:mk_branch(SizeReg, ge, hipe_rtl:mk_imm(0), NextLblName,
- FalseLblName),
- NextLbl].
-
realloc_binary(SizeReg, ProcBin, Base) ->
[NoReallocLbl, ReallocLbl, NextLbl, ContLbl] = Lbls = create_lbls(4),
[NoReallocLblName, ReallocLblName, NextLblName, ContLblName] =
@@ -428,7 +432,7 @@ realloc_binary(SizeReg, ProcBin, Base) ->
set_field_from_term(ProcBinFlagsTag, ProcBin, Flags),
get_field_from_term(ProcBinValTag, ProcBin, BinPointer),
get_field_from_pointer(BinOrigSizeTag, BinPointer, OrigSize),
- hipe_rtl:mk_branch(OrigSize, 'lt', ResultingSize,
+ hipe_rtl:mk_branch(OrigSize, 'ltu', ResultingSize,
ReallocLblName, NoReallocLblName),
NoReallocLbl,
get_field_from_term(ProcBinBytesTag, ProcBin, Base),
@@ -669,14 +673,14 @@ var_init2(Size, Dst, Base, Offset, TrueLblName, SystemLimitLblName, FalseLblName
WordSize = hipe_rtl_arch:word_size(),
[ContLbl,HeapLbl,REFCLbl,NextLbl] = create_lbls(4),
[USize,Tmp] = create_unsafe_regs(2),
- [get_32_bit_value(Size, USize, SystemLimitLblName, FalseLblName),
- hipe_rtl:mk_branch(USize, le, hipe_rtl:mk_imm(?MAX_BINSIZE),
- hipe_rtl:label_name(ContLbl),
- SystemLimitLblName),
+ [get_word_integer(Size, USize, SystemLimitLblName, FalseLblName),
+ hipe_rtl:mk_branch(USize, leu, hipe_rtl:mk_imm(?MAX_BINSIZE),
+ hipe_rtl:label_name(ContLbl),
+ SystemLimitLblName),
ContLbl,
hipe_rtl:mk_move(Offset, hipe_rtl:mk_imm(0)),
- hipe_rtl:mk_branch(USize, le, hipe_rtl:mk_imm(?MAX_HEAP_BIN_SIZE),
- hipe_rtl:label_name(HeapLbl),
+ hipe_rtl:mk_branch(USize, leu, hipe_rtl:mk_imm(?MAX_HEAP_BIN_SIZE),
+ hipe_rtl:label_name(HeapLbl),
hipe_rtl:label_name(REFCLbl)),
HeapLbl,
hipe_rtl:mk_alu(Tmp, USize, add, hipe_rtl:mk_imm(3*WordSize-1)),
@@ -694,8 +698,8 @@ var_init2(Size, Dst, Base, Offset, TrueLblName, SystemLimitLblName, FalseLblName
hipe_rtl:mk_goto(TrueLblName)].
var_init_bits(Size, Dst, Base, Offset, TrueLblName, SystemLimitLblName, FalseLblName) ->
- [HeapLbl,REFCLbl,NextLbl,NoSubLbl,SubLbl,ContLbl,
- NoCreateSubBin, CreateSubBin, JoinLbl, JoinLbl2] = create_lbls(10),
+ [HeapLbl,REFCLbl,NextLbl,NoSubLbl,SubLbl,
+ NoCreateSubBin, CreateSubBin, JoinLbl, JoinLbl2] = create_lbls(9),
[USize,ByteSize,TotByteSize,OffsetBits] = create_regs(4),
[TmpDst] = create_unsafe_regs(1),
Log2WordSize = hipe_rtl_arch:log2_word_size(),
@@ -705,7 +709,7 @@ var_init_bits(Size, Dst, Base, Offset, TrueLblName, SystemLimitLblName, FalseLbl
?PROC_BIN_WORDSIZE) + ?SUB_BIN_WORDSIZE,
Zero = hipe_rtl:mk_imm(0),
[hipe_rtl:mk_gctest(MaximumWords),
- get_32_bit_value(Size, USize, SystemLimitLblName, FalseLblName),
+ get_word_integer(Size, USize, SystemLimitLblName, FalseLblName),
hipe_rtl:mk_alu(ByteSize, USize, srl, ?BYTE_SHIFT),
hipe_rtl:mk_alub(OffsetBits, USize, 'and', ?LOW_BITS, eq,
hipe_rtl:label_name(NoSubLbl),
@@ -716,11 +720,7 @@ var_init_bits(Size, Dst, Base, Offset, TrueLblName, SystemLimitLblName, FalseLbl
SubLbl,
hipe_rtl:mk_alu(TotByteSize, ByteSize, 'add', hipe_rtl:mk_imm(1)),
JoinLbl,
- hipe_rtl:mk_branch(USize, le, hipe_rtl:mk_imm(?MAX_BINSIZE),
- hipe_rtl:label_name(ContLbl),
- SystemLimitLblName),
- ContLbl,
- hipe_rtl:mk_branch(TotByteSize, 'le', hipe_rtl:mk_imm(?MAX_HEAP_BIN_SIZE),
+ hipe_rtl:mk_branch(TotByteSize, 'leu', hipe_rtl:mk_imm(?MAX_HEAP_BIN_SIZE),
hipe_rtl:label_name(HeapLbl),
hipe_rtl:label_name(REFCLbl)),
HeapLbl,
@@ -743,13 +743,16 @@ var_init_bits(Size, Dst, Base, Offset, TrueLblName, SystemLimitLblName, FalseLbl
hipe_rtl:mk_move(Dst, TmpDst),
hipe_rtl:mk_goto(TrueLblName)].
-put_binary_all(NewOffset, Src, Base, Offset, TLName, FLName) ->
+put_binary_all(NewOffset, Src, Base, Offset, Unit, TLName, FLName) ->
[SrcBase,SrcOffset,NumBits] = create_regs(3),
+ [ContLbl] = create_lbls(1),
CCode = binary_c_code(NewOffset, Src, Base, Offset, NumBits, TLName),
AlignedCode = copy_aligned_bytes(SrcBase, SrcOffset, NumBits, Base, Offset,
NewOffset, TLName),
- get_base_offset_size(Src, SrcBase, SrcOffset, NumBits,FLName) ++
- test_alignment(SrcOffset, NumBits, Offset, AlignedCode, CCode).
+ [get_base_offset_size(Src, SrcBase, SrcOffset, NumBits,FLName),
+ is_divisible(NumBits, Unit, hipe_rtl:label_name(ContLbl), FLName),
+ ContLbl
+ |test_alignment(SrcOffset, NumBits, Offset, AlignedCode, CCode)].
test_alignment(SrcOffset, NumBits, Offset, AlignedCode, CCode) ->
[Tmp] = create_regs(1),
@@ -976,7 +979,7 @@ copy_string(StringBase, StringSize, BinBase, BinOffset, NewOffset, TrueLblName)
small_check(SizeVar, CopySize, FalseLblName) ->
SuccessLbl = hipe_rtl:mk_new_label(),
- [hipe_rtl:mk_branch(SizeVar, le, CopySize,
+ [hipe_rtl:mk_branch(SizeVar, leu, CopySize,
hipe_rtl:label_name(SuccessLbl), FalseLblName),
SuccessLbl].
@@ -1279,89 +1282,18 @@ copy_float_big(Base, Offset, NewOffset, Src, FalseLblName, TrueLblName, var) ->
hipe_tagscheme:test_flonum(Src, hipe_rtl:label_name(SuccessLbl), FalseLblName, 0.99) ++
[SuccessLbl|copy_float_big(Base, Offset, NewOffset, Src, FalseLblName, TrueLblName, pass)].
-make_size(1, BitsVar, FalseLblName) ->
- [DstReg] = create_regs(1),
- {first_part(BitsVar, DstReg, FalseLblName), DstReg};
-make_size(?BYTE_SIZE, BitsVar, FalseLblName) ->
- [DstReg] = create_regs(1),
- Code =
- first_part(BitsVar, DstReg, FalseLblName) ++
- [hipe_rtl:mk_alu(DstReg, DstReg, 'sll', ?BYTE_SHIFT)],
- {Code, DstReg};
-make_size(UnitImm, BitsVar, FalseLblName) ->
- [DstReg] = create_regs(1),
- UnitList = number2list(UnitImm),
- Code = multiply_code(UnitList, BitsVar, DstReg, FalseLblName),
- {Code, DstReg}.
-
-multiply_code(List=[Head|_Tail], Variable, Result, FalseLblName) ->
- Test = set_high(Head),
- Tmp1 = hipe_rtl:mk_new_reg(),
- SuccessLbl = hipe_rtl:mk_new_label(),
- Register = hipe_rtl:mk_new_reg(),
- Code = [hipe_rtl:mk_move(Result, hipe_rtl:mk_imm(0))|
- first_part(Variable, Register, FalseLblName)]
- ++
- [hipe_rtl:mk_alub(Tmp1, Register, 'and', hipe_rtl:mk_imm(Test),
- 'eq', hipe_rtl:label_name(SuccessLbl),
- FalseLblName, 0.99),
- SuccessLbl],
- multiply_code(List, Register, Result, FalseLblName, Tmp1, Code).
-
-multiply_code([ShiftSize|Rest], Register, Result, FalseLblName, Tmp1, OldCode) ->
- SuccessLbl = hipe_rtl:mk_new_label(),
- Code = OldCode ++ [hipe_rtl:mk_alu(Tmp1, Register, 'sll',
- hipe_rtl:mk_imm(ShiftSize)),
- hipe_rtl:mk_alub(Result, Tmp1, 'add', Result, not_overflow, hipe_rtl:label_name(SuccessLbl), FalseLblName, 0.99),
- SuccessLbl],
- multiply_code(Rest, Register, Result, FalseLblName, Tmp1, Code);
-multiply_code([], _Register, _Result, _FalseLblName, _Tmp1, Code) ->
- Code.
-
-number2list(X) when is_integer(X), X >= 0 ->
- number2list(X, []).
-
-number2list(1, Acc) ->
- lists:reverse([0|Acc]);
-number2list(0, Acc) ->
- lists:reverse(Acc);
-number2list(X, Acc) ->
- F = floorlog2(X),
- number2list(X-(1 bsl F), [F|Acc]).
-
-floorlog2(X) ->
- round(math:log(X)/math:log(2)-0.5).
-
-set_high(X) ->
- set_high(X, 0).
-
-set_high(0, Y) ->
- Y;
-set_high(X, Y) ->
- set_high(X-1, Y+(1 bsl (27-X))).
-
-get_32_bit_value(Size, USize, SystemLimitLblName, NegLblName) ->
- Lbls = [FixLbl, BigLbl, OkLbl, PosBigLbl] = create_lbls(4),
- [FixLblName, BigLblName, OkLblName, PosBigLblName] = [hipe_rtl:label_name(Lbl) || Lbl <- Lbls],
- [hipe_tagscheme:test_fixnum(Size, FixLblName, BigLblName, 0.99),
- FixLbl,
- hipe_tagscheme:untag_fixnum(USize, Size),
- hipe_rtl:mk_branch(USize, ge, hipe_rtl:mk_imm(0), OkLblName, NegLblName),
- BigLbl,
- hipe_tagscheme:test_pos_bignum(Size, PosBigLblName, NegLblName, 0.99),
- PosBigLbl,
- hipe_tagscheme:get_one_word_pos_bignum(USize, Size, SystemLimitLblName),
- OkLbl].
-
-
-first_part(Var, Register, FalseLblName) ->
- [SuccessLbl1, SuccessLbl2] = create_lbls(2),
- [hipe_tagscheme:test_fixnum(Var, hipe_rtl:label_name(SuccessLbl1),
- FalseLblName, 0.99),
- SuccessLbl1,
- hipe_tagscheme:fixnum_ge(Var, hipe_rtl:mk_imm(hipe_tagscheme:mk_fixnum(0)),
- hipe_rtl:label_name(SuccessLbl2), FalseLblName, 0.99),
- SuccessLbl2,
- hipe_tagscheme:untag_fixnum(Register, Var)].
-
-
+is_divisible(_Dividend, 1, SuccLbl, _FailLbl) ->
+ [hipe_rtl:mk_goto(SuccLbl)];
+is_divisible(Dividend, Divisor, SuccLbl, FailLbl) ->
+ Log2 = floorlog2(Divisor),
+ case Divisor =:= 1 bsl Log2 of
+ true -> %% Divisor is a power of 2
+ %% Test that the Log2-1 lowest bits are clear
+ Mask = hipe_rtl:mk_imm(Divisor - 1),
+ [Tmp] = create_regs(1),
+ [hipe_rtl:mk_alub(Tmp, Dividend, 'and', Mask, eq, SuccLbl, FailLbl, 0.99)];
+ false ->
+ %% We need division, fall back to a primop
+ [hipe_rtl:mk_call([], is_divisible, [Dividend, hipe_rtl:mk_imm(Divisor)],
+ SuccLbl, FailLbl, not_remote)]
+ end.
diff --git a/lib/hipe/rtl/hipe_rtl_binary_match.erl b/lib/hipe/rtl/hipe_rtl_binary_match.erl
index cf1b8e453f..be4c35dae0 100644
--- a/lib/hipe/rtl/hipe_rtl_binary_match.erl
+++ b/lib/hipe/rtl/hipe_rtl_binary_match.erl
@@ -31,11 +31,12 @@
-import(hipe_tagscheme, [set_field_from_term/3, get_field_from_term/3]).
+-import(hipe_rtl_binary, [make_size/3]).
+
-include("hipe_literals.hrl").
%%--------------------------------------------------------------------
--define(MAX_BINSIZE, trunc(?MAX_HEAP_BIN_SIZE / hipe_rtl_arch:word_size()) + 2).
-define(BYTE_SHIFT, 3). %% Turn bits into bytes or vice versa
-define(LOW_BITS, 7). %% Three lowest bits set
-define(BYTE_SIZE, 8).
@@ -835,10 +836,10 @@ create_lbls(0) ->
create_lbls(X) when X > 0 ->
[hipe_rtl:mk_new_label()|create_lbls(X-1)].
-make_dyn_prep(SizeReg, CCode) ->
+make_dyn_prep(SizeReg, CCode) ->
[CLbl, SuccessLbl] = create_lbls(2),
- Init = [hipe_rtl:mk_branch(SizeReg, le, hipe_rtl:mk_imm(?MAX_SMALL_BITS),
- hipe_rtl:label_name(SuccessLbl),
+ Init = [hipe_rtl:mk_branch(SizeReg, leu, hipe_rtl:mk_imm(?MAX_SMALL_BITS),
+ hipe_rtl:label_name(SuccessLbl),
hipe_rtl:label_name(CLbl)),
SuccessLbl],
End = [CLbl|CCode],
@@ -883,8 +884,8 @@ get_unaligned_int_to_reg(Reg, Size, Base, Offset, LowBits, Shiftr, Type) ->
hipe_rtl:mk_imm((WordSize-MinLoad)*?BYTE_SIZE))];
{_, WordSize} ->
UnsignedBig = {unsigned, big},
- [hipe_rtl:mk_branch(TotBits, le, hipe_rtl:mk_imm(MinLoad*?BYTE_SIZE),
- hipe_rtl:label_name(LessLbl),
+ [hipe_rtl:mk_branch(TotBits, leu, hipe_rtl:mk_imm(MinLoad*?BYTE_SIZE),
+ hipe_rtl:label_name(LessLbl),
hipe_rtl:label_name(MoreLbl)),
LessLbl,
load_bytes(LoadDst, Base, ByteOffset, Type, MinLoad),
@@ -944,7 +945,7 @@ get_big_unknown_int(Dst1, Base, Offset, NewOffset,
hipe_rtl:mk_alu(ByteOffset, Offset, srl, hipe_rtl:mk_imm(?BYTE_SHIFT)),
load_bytes(LoadDst, Base, ByteOffset, Type, 1),
BackLbl,
- hipe_rtl:mk_branch(ByteOffset, le, Limit, hipe_rtl:label_name(LoopLbl),
+ hipe_rtl:mk_branch(ByteOffset, leu, Limit, hipe_rtl:label_name(LoopLbl),
hipe_rtl:label_name(EndLbl)),
LoopLbl,
load_bytes(Tmp, Base, ByteOffset, {unsigned, big}, 1),
@@ -973,8 +974,8 @@ get_little_unknown_int(Dst1, Base, Offset, NewOffset,
hipe_rtl:mk_alu(Limit, Tmp, srl, hipe_rtl:mk_imm(?BYTE_SHIFT)),
hipe_rtl:mk_move(ShiftReg, hipe_rtl:mk_imm(0)),
BackLbl,
- hipe_rtl:mk_branch(ByteOffset, lt, Limit,
- hipe_rtl:label_name(LoopLbl),
+ hipe_rtl:mk_branch(ByteOffset, ltu, Limit,
+ hipe_rtl:label_name(LoopLbl),
hipe_rtl:label_name(DoneLbl)),
LoopLbl,
load_bytes(Tmp, Base, ByteOffset, {unsigned, big}, 1),
@@ -1090,7 +1091,7 @@ load_bytes(Dst, Base, Offset, {Signedness, Endianness}, X) when X > 1 ->
hipe_rtl:mk_alu(Offset, Offset, add, hipe_rtl:mk_imm(1)),
hipe_rtl:mk_alu(Dst, Dst, sll, hipe_rtl:mk_imm(8)),
hipe_rtl:mk_alu(Dst, Dst, 'or', Tmp1),
- hipe_rtl:mk_branch(Offset, lt, Limit, hipe_rtl:label_name(LoopLbl),
+ hipe_rtl:mk_branch(Offset, ltu, Limit, hipe_rtl:label_name(LoopLbl),
hipe_rtl:label_name(EndLbl)),
EndLbl];
little ->
@@ -1102,7 +1103,7 @@ load_bytes(Dst, Base, Offset, {Signedness, Endianness}, X) when X > 1 ->
hipe_rtl:mk_load(Tmp1, Base, TmpOffset, byte, Signedness),
hipe_rtl:mk_alu(Dst, Dst, sll, hipe_rtl:mk_imm(8)),
hipe_rtl:mk_alu(Dst, Dst, 'or', Tmp1),
- hipe_rtl:mk_branch(Offset, lt, TmpOffset, hipe_rtl:label_name(LoopLbl),
+ hipe_rtl:mk_branch(Offset, ltu, TmpOffset, hipe_rtl:label_name(LoopLbl),
hipe_rtl:label_name(EndLbl)),
EndLbl,
hipe_rtl:mk_move(Offset, Limit)]
@@ -1118,103 +1119,5 @@ create_gcsafe_regs(X) when X > 0 ->
create_gcsafe_regs(0) ->
[].
-first_part(Var, Register, FalseLblName) ->
- [EndLbl] = create_lbls(1),
- EndName = hipe_rtl:label_name(EndLbl),
- first_part(Var, Register, FalseLblName, EndName, EndName, [EndLbl]).
-
-first_part(Var, Register, FalseLblName, TrueLblName, BigLblName, Tail) ->
- [FixnumLbl, NotFixnumLbl, BignumLbl, SuccessLbl] = create_lbls(4),
- [hipe_tagscheme:test_fixnum(Var, hipe_rtl:label_name(FixnumLbl),
- hipe_rtl:label_name(NotFixnumLbl), 0.99),
- FixnumLbl,
- hipe_tagscheme:fixnum_ge(Var, hipe_rtl:mk_imm(hipe_tagscheme:mk_fixnum(0)),
- hipe_rtl:label_name(SuccessLbl), FalseLblName,
- 0.99),
- SuccessLbl,
- hipe_tagscheme:untag_fixnum(Register, Var),
- hipe_rtl:mk_goto(TrueLblName),
- NotFixnumLbl,
- %% Since binaries are not allowed to be larger than 2^wordsize bits
- %% and since bignum digits are words, we know that a bignum with an
- %% arity larger than one can't match.
- hipe_tagscheme:test_pos_bignum_arity(Var, 1, hipe_rtl:label_name(BignumLbl),
- FalseLblName, 0.99),
- BignumLbl,
- hipe_tagscheme:unsafe_get_one_word_pos_bignum(Register, Var),
- hipe_rtl:mk_goto(BigLblName) | Tail].
-
-make_size(1, BitsVar, FalseLblName) ->
- [DstReg] = create_regs(1),
- {first_part(BitsVar, DstReg, FalseLblName), DstReg};
-make_size(?BYTE_SIZE, BitsVar, FalseLblName) ->
- [DstReg] = create_regs(1),
- [FixnumLbl, BignumLbl] = create_lbls(2),
- WordBits = hipe_rtl_arch:word_size() * ?BYTE_SIZE,
- FixnumLblName = hipe_rtl:label_name(FixnumLbl),
- Tail = [BignumLbl,
- hipe_rtl:mk_branch(DstReg, 'ltu',
- hipe_rtl:mk_imm(1 bsl (WordBits - ?BYTE_SHIFT)),
- FixnumLblName, FalseLblName, 0.99),
- FixnumLbl,
- hipe_rtl:mk_alu(DstReg, DstReg, sll, hipe_rtl:mk_imm(?BYTE_SHIFT))],
- Code = first_part(BitsVar, DstReg, FalseLblName, FixnumLblName,
- hipe_rtl:label_name(BignumLbl), Tail),
- {Code, DstReg};
-make_size(UnitImm, BitsVar, FalseLblName) ->
- [DstReg] = create_regs(1),
- UnitList = number2list(UnitImm),
- Code = multiply_code(UnitList, BitsVar, DstReg, FalseLblName),
- {Code, DstReg}.
-
-multiply_code(List=[Head|_Tail], Variable, Result, FalseLblName) ->
- Test = set_high(Head),
- Tmp1 = hipe_rtl:mk_new_reg(),
- SuccessLbl = hipe_rtl:mk_new_label(),
- Register = hipe_rtl:mk_new_reg(),
- Code = [hipe_rtl:mk_move(Result, hipe_rtl:mk_imm(0))|
- first_part(Variable, Register, FalseLblName)]
- ++
- [hipe_rtl:mk_alub(Tmp1, Register, 'and', hipe_rtl:mk_imm(Test),
- eq, hipe_rtl:label_name(SuccessLbl),
- FalseLblName, 0.99),
- SuccessLbl],
- multiply_code(List, Register, Result, FalseLblName, Tmp1, Code).
-
-multiply_code([ShiftSize|Rest], Register, Result, FalseLblName, Tmp1, OldCode) ->
- SuccessLbl = hipe_rtl:mk_new_label(),
- Code =
- OldCode ++
- [hipe_rtl:mk_alu(Tmp1, Register, sll, hipe_rtl:mk_imm(ShiftSize)),
- hipe_rtl:mk_alub(Result, Tmp1, 'add', Result, not_overflow,
- hipe_rtl:label_name(SuccessLbl), FalseLblName, 0.99),
- SuccessLbl],
- multiply_code(Rest, Register, Result, FalseLblName, Tmp1, Code);
-multiply_code([], _Register, _Result, _FalseLblName, _Tmp1, Code) ->
- Code.
-
-number2list(X) when is_integer(X), X >= 0 ->
- number2list(X, []).
-
-number2list(1, Acc) ->
- lists:reverse([0|Acc]);
-number2list(0, Acc) ->
- lists:reverse(Acc);
-number2list(X, Acc) ->
- F = floorlog2(X),
- number2list(X-(1 bsl F), [F|Acc]).
-
-floorlog2(X) ->
- round(math:log(X)/math:log(2)-0.5).
-
-set_high(X) ->
- WordBits = hipe_rtl_arch:word_size() * ?BYTE_SIZE,
- set_high(min(X, WordBits), WordBits, 0).
-
-set_high(0, _, Y) ->
- Y;
-set_high(X, WordBits, Y) ->
- set_high(X-1, WordBits, Y+(1 bsl (WordBits-X))).
-
is_illegal_const(Const) ->
Const >= 1 bsl (hipe_rtl_arch:word_size() * ?BYTE_SIZE) orelse Const < 0.
diff --git a/lib/hipe/rtl/hipe_tagscheme.erl b/lib/hipe/rtl/hipe_tagscheme.erl
index d77078acb6..8825a3ade3 100644
--- a/lib/hipe/rtl/hipe_tagscheme.erl
+++ b/lib/hipe/rtl/hipe_tagscheme.erl
@@ -42,7 +42,7 @@
test_ref/4, test_fun/4, test_fun2/5, test_matchstate/4,
test_binary/4, test_bitstr/4, test_list/4, test_map/4,
test_integer/4, test_number/4, test_tuple_N/5,
- test_pos_bignum_arity/5]).
+ test_pos_bignum_arity/6]).
-export([realtag_fixnum/2, tag_fixnum/2, realuntag_fixnum/2, untag_fixnum/2]).
-export([test_two_fixnums/3, test_fixnums/4, unsafe_fixnum_add/3,
unsafe_fixnum_sub/3,
@@ -351,14 +351,23 @@ test_pos_bignum(X, TrueLab, FalseLab, Pred) ->
mask_and_compare(Tmp, BigMask, ?TAG_HEADER_POS_BIG,
TrueLab, FalseLab, Pred)].
-test_pos_bignum_arity(X, Arity, TrueLab, FalseLab, Pred) ->
+test_pos_bignum_arity(X, Arity, TrueLab, NotPosBignumLab, FalseLab, Pred) ->
Tmp = hipe_rtl:mk_new_reg_gcsafe(),
- HalfTrueLab = hipe_rtl:mk_new_label(),
+ BoxedLab = hipe_rtl:mk_new_label(),
HeaderImm = hipe_rtl:mk_imm(mk_header(Arity, ?TAG_HEADER_POS_BIG)),
- [test_is_boxed(X, hipe_rtl:label_name(HalfTrueLab), FalseLab, Pred),
- HalfTrueLab,
- get_header(Tmp, X),
- hipe_rtl:mk_branch(Tmp, 'eq', HeaderImm, TrueLab, FalseLab, Pred)].
+ [test_is_boxed(X, hipe_rtl:label_name(BoxedLab), NotPosBignumLab, Pred),
+ BoxedLab,
+ get_header(Tmp, X)] ++
+ case NotPosBignumLab =:= FalseLab of
+ true -> [];
+ false ->
+ BignumLab = hipe_rtl:mk_new_label(),
+ BigMask = ?TAG_HEADER_MASK,
+ [mask_and_compare(Tmp, BigMask, ?TAG_HEADER_POS_BIG,
+ hipe_rtl:label_name(BignumLab), NotPosBignumLab, Pred),
+ BignumLab]
+ end ++
+ [hipe_rtl:mk_branch(Tmp, 'eq', HeaderImm, TrueLab, FalseLab, Pred)].
test_matchstate(X, TrueLab, FalseLab, Pred) ->
Tmp = hipe_rtl:mk_new_reg_gcsafe(),
diff --git a/lib/hipe/test/bs_SUITE_data/bs_add.erl b/lib/hipe/test/bs_SUITE_data/bs_add.erl
index af5a3b2f23..4b92e6b413 100644
--- a/lib/hipe/test/bs_SUITE_data/bs_add.erl
+++ b/lib/hipe/test/bs_SUITE_data/bs_add.erl
@@ -2,7 +2,7 @@
%%-------------------------------------------------------------------------
%% The guard in f/3 revealed a problem in the translation of the 'bs_add'
%% BEAM instruction to Icode. The fail label was not properly translated.
-%% Fixed 3/2/2011.
+%% Fixed 3/2/2011. Then in 2015 we found another issue: g/2. Also fixed.
%%-------------------------------------------------------------------------
-module(bs_add).
@@ -10,9 +10,17 @@
test() ->
42 = f(<<12345:16>>, 4711, <<42>>),
+ true = g(<<1:13>>, 3), %% was handled OK, but
+ false = g(<<>>, gurka), %% this one leaked badarith
ok.
f(Bin, A, B) when <<A:9, B:7/binary>> == Bin ->
gazonk;
f(Bin, _, _) when is_binary(Bin) ->
42.
+
+%% Complex way of testing (bit_size(Bin) + Len) rem 8 =:= 0
+g(Bin, Len) when is_binary(<<Bin/binary-unit:1, 123:Len>>) ->
+ true;
+g(_, _) ->
+ false.
diff --git a/lib/hipe/test/bs_SUITE_data/bs_construct.erl b/lib/hipe/test/bs_SUITE_data/bs_construct.erl
index 37a54c1981..b9e7d93570 100644
--- a/lib/hipe/test/bs_SUITE_data/bs_construct.erl
+++ b/lib/hipe/test/bs_SUITE_data/bs_construct.erl
@@ -14,6 +14,11 @@ test() ->
16#10000008 = bit_size(large_bin(1, 2, 3, 4)),
ok = bad_ones(),
ok = zero_width(),
+ ok = not_used(),
+ ok = bad_append(),
+ ok = system_limit(),
+ ok = bad_floats(),
+ ok = huge_binaries(),
ok.
%%--------------------------------------------------------------------
@@ -142,3 +147,159 @@ zero_width() ->
ok.
id(X) -> X.
+
+%%--------------------------------------------------------------------
+%% Taken from bs_construct_SUITE. The test checks that constructed
+%% binaries that are not used would still give a `badarg' exception.
+%% Problem was that in native code one of them gave `badarith'.
+
+not_used() ->
+ ok = not_used1(3, <<"dum">>),
+ {'EXIT',{badarg,_}} = (catch not_used1(42, "dum_string")),
+ {'EXIT',{badarg,_}} = (catch not_used2(666, -2)),
+ {'EXIT',{badarg,_}} = (catch not_used2(666, "bad_size")), % this one
+ {'EXIT',{badarg,_}} = (catch not_used3(666)),
+ ok.
+
+not_used1(I, BinString) ->
+ <<I:32,BinString/binary>>,
+ ok.
+
+not_used2(I, Sz) ->
+ <<I:Sz>>,
+ ok.
+
+not_used3(I) ->
+ <<I:(-8)>>,
+ ok.
+
+%%--------------------------------------------------------------------
+%% Taken from bs_construct_SUITE.
+
+bad_append() ->
+ do_bad_append(<<127:1>>, fun append_unit_3/1),
+ do_bad_append(<<127:2>>, fun append_unit_3/1),
+ do_bad_append(<<127:17>>, fun append_unit_3/1),
+
+ do_bad_append(<<127:3>>, fun append_unit_4/1),
+ do_bad_append(<<127:5>>, fun append_unit_4/1),
+ do_bad_append(<<127:7>>, fun append_unit_4/1),
+ do_bad_append(<<127:199>>, fun append_unit_4/1),
+
+ do_bad_append(<<127:7>>, fun append_unit_8/1),
+ do_bad_append(<<127:9>>, fun append_unit_8/1),
+
+ do_bad_append(<<0:8>>, fun append_unit_16/1),
+ do_bad_append(<<0:15>>, fun append_unit_16/1),
+ do_bad_append(<<0:17>>, fun append_unit_16/1),
+ ok.
+
+do_bad_append(Bin0, Appender) ->
+ {'EXIT',{badarg,_}} = (catch Appender(Bin0)),
+
+ Bin1 = id(<<0:3,Bin0/bitstring>>),
+ <<_:3,Bin2/bitstring>> = Bin1,
+ {'EXIT',{badarg,_}} = (catch Appender(Bin2)),
+
+ %% Create a writable binary.
+ Empty = id(<<>>),
+ Bin3 = <<Empty/bitstring,Bin0/bitstring>>,
+ {'EXIT',{badarg,_}} = (catch Appender(Bin3)),
+ ok.
+
+append_unit_3(Bin) ->
+ <<Bin/binary-unit:3,0:1>>.
+
+append_unit_4(Bin) ->
+ <<Bin/binary-unit:4,0:1>>.
+
+append_unit_8(Bin) ->
+ <<Bin/binary,0:1>>.
+
+append_unit_16(Bin) ->
+ <<Bin/binary-unit:16,0:1>>.
+
+%%--------------------------------------------------------------------
+%% Taken from bs_construct_SUITE.
+
+system_limit() ->
+ WordSize = erlang:system_info(wordsize),
+ BitsPerWord = WordSize * 8,
+ {'EXIT',{system_limit,_}} =
+ (catch <<0:(id(0)),42:(id(1 bsl BitsPerWord))>>),
+ {'EXIT',{system_limit,_}} =
+ (catch <<42:(id(1 bsl BitsPerWord)),0:(id(0))>>),
+ {'EXIT',{system_limit,_}} =
+ (catch <<(id(<<>>))/binary,0:(id(1 bsl 100))>>),
+
+ %% Would fail to load.
+ {'EXIT',{system_limit,_}} = (catch <<0:(1 bsl 67)>>),
+ {'EXIT',{system_limit,_}} = (catch <<0:((1 bsl 64)+1)>>),
+ case WordSize of
+ 4 ->
+ system_limit_32();
+ 8 ->
+ ok
+ end.
+
+system_limit_32() ->
+ {'EXIT',{badarg,_}} = (catch <<42:(-1)>>),
+ {'EXIT',{badarg,_}} = (catch <<42:(id(-1))>>),
+ {'EXIT',{badarg,_}} = (catch <<42:(id(-389739873536870912))/unit:8>>),
+ {'EXIT',{system_limit,_}} = (catch <<42:536870912/unit:8>>),
+ {'EXIT',{system_limit,_}} = (catch <<42:(id(536870912))/unit:8>>),
+ {'EXIT',{system_limit,_}} = (catch <<0:(id(8)),42:536870912/unit:8>>),
+ {'EXIT',{system_limit,_}} = (catch <<0:(id(8)),42:(id(536870912))/unit:8>>),
+
+ %% The size would be silently truncated, resulting in a crash.
+ {'EXIT',{system_limit,_}} = (catch <<0:(1 bsl 35)>>),
+ {'EXIT',{system_limit,_}} = (catch <<0:((1 bsl 32)+1)>>),
+
+ %% Would fail to load.
+ {'EXIT',{system_limit,_}} = (catch <<0:(1 bsl 43)>>),
+ {'EXIT',{system_limit,_}} = (catch <<0:((1 bsl 40)+1)>>),
+ ok.
+
+%%--------------------------------------------------------------------
+
+bad_floats() ->
+ WordSize = erlang:system_info(wordsize),
+ BitsPerWord = WordSize * 8,
+ {'EXIT',{badarg,_}} = (catch <<3.14:(id(33))/float>>),
+ {'EXIT',{badarg,_}} = (catch <<3.14:(id(64 bor 32))/float>>),
+ {'EXIT',{badarg,_}} = (catch <<3.14:(id((1 bsl 28) bor 32))/float>>),
+ {'EXIT',{system_limit,_}} = (catch <<3.14:(id(1 bsl BitsPerWord))/float>>),
+ ok.
+
+%%--------------------------------------------------------------------
+%% A bug in the implementation of binaries compared sizes in bits with sizes in
+%% bytes, causing <<0:(id((1 bsl 31)-1))>> to fail to construct with
+%% 'system_limit'.
+%% <<0:(id((1 bsl 32)-1))>> was succeeding because the comparison was
+%% (incorrectly) signed.
+
+huge_binaries() ->
+ AlmostIllegal = id(<<0:(id((1 bsl 32)-8))>>),
+ case erlang:system_info(wordsize) of
+ 4 -> huge_binaries_32(AlmostIllegal);
+ 8 -> ok
+ end,
+ garbage_collect(),
+ id(<<0:(id((1 bsl 31)-1))>>),
+ id(<<0:(id((1 bsl 30)-1))>>),
+ garbage_collect(),
+ ok.
+
+huge_binaries_32(AlmostIllegal) ->
+ %% Attempt construction of too large binary using bs_init/1 (which takes the
+ %% number of bytes as an argument, which should be compared to the maximum
+ %% size in bytes).
+ {'EXIT',{system_limit,_}} = (catch <<0:32,AlmostIllegal/binary>>),
+ %% Attempt construction of too large binary using bs_init/1 with a size in
+ %% bytes that has the msb set (and would be negative if it was signed).
+ {'EXIT',{system_limit,_}} =
+ (catch <<0:8, AlmostIllegal/binary, AlmostIllegal/binary,
+ AlmostIllegal/binary, AlmostIllegal/binary,
+ AlmostIllegal/binary, AlmostIllegal/binary,
+ AlmostIllegal/binary, AlmostIllegal/binary>>),
+ ok.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 14:25:06 +0000