diff options
Diffstat (limited to 'lib/hipe/rtl/hipe_tagscheme.erl')
-rw-r--r-- | lib/hipe/rtl/hipe_tagscheme.erl | 106 |
1 files changed, 54 insertions, 52 deletions
diff --git a/lib/hipe/rtl/hipe_tagscheme.erl b/lib/hipe/rtl/hipe_tagscheme.erl index 35d1e7c8a4..68cbe75e85 100644 --- a/lib/hipe/rtl/hipe_tagscheme.erl +++ b/lib/hipe/rtl/hipe_tagscheme.erl @@ -40,6 +40,7 @@ fixnum_gt/5, fixnum_lt/5, fixnum_ge/5, fixnum_le/5, fixnum_val/1, fixnum_mul/4, fixnum_addsub/5, fixnum_andorxor/4, fixnum_not/2, fixnum_bsr/3, fixnum_bsl/3]). +-export([test_either_immed/4]). -export([unsafe_car/2, unsafe_cdr/2, unsafe_constant_element/3, unsafe_update_element/3, element/6]). -export([unsafe_closure_element/3]). @@ -363,14 +364,17 @@ test_matchstate(X, TrueLab, FalseLab, Pred) -> mask_and_compare(Tmp, ?TAG_HEADER_MASK, ?TAG_HEADER_BIN_MATCHSTATE, TrueLab, FalseLab, Pred)]. +test_bitstr_header(HdrTmp, TrueLab, FalseLab, Pred) -> + Mask = ?TAG_HEADER_MASK - ?BINARY_XXX_MASK, + mask_and_compare(HdrTmp, Mask, ?TAG_HEADER_REFC_BIN, TrueLab, FalseLab, Pred). + test_bitstr(X, TrueLab, FalseLab, Pred) -> Tmp = hipe_rtl:mk_new_reg_gcsafe(), HalfTrueLab = hipe_rtl:mk_new_label(), - Mask = ?TAG_HEADER_MASK - ?BINARY_XXX_MASK, [test_is_boxed(X, hipe_rtl:label_name(HalfTrueLab), FalseLab, Pred), HalfTrueLab, get_header(Tmp, X), - mask_and_compare(Tmp, Mask, ?TAG_HEADER_REFC_BIN, TrueLab, FalseLab, Pred)]. + test_bitstr_header(Tmp, TrueLab, FalseLab, Pred)]. test_binary(X, TrueLab, FalseLab, Pred) -> Tmp1 = hipe_rtl:mk_new_reg_gcsafe(), @@ -378,12 +382,10 @@ test_binary(X, TrueLab, FalseLab, Pred) -> IsBoxedLab = hipe_rtl:mk_new_label(), IsBitStrLab = hipe_rtl:mk_new_label(), IsSubBinLab = hipe_rtl:mk_new_label(), - Mask = ?TAG_HEADER_MASK - ?BINARY_XXX_MASK, [test_is_boxed(X, hipe_rtl:label_name(IsBoxedLab), FalseLab, Pred), IsBoxedLab, get_header(Tmp1, X), - mask_and_compare(Tmp1, Mask, ?TAG_HEADER_REFC_BIN, - hipe_rtl:label_name(IsBitStrLab), FalseLab, Pred), + test_bitstr_header(Tmp1, hipe_rtl:label_name(IsBitStrLab), FalseLab, Pred), IsBitStrLab, mask_and_compare(Tmp1, ?TAG_HEADER_MASK, ?TAG_HEADER_SUB_BIN, hipe_rtl:label_name(IsSubBinLab), TrueLab, 0.5), @@ -453,6 +455,10 @@ test_fixnums_1([Arg1, Arg2|Args], Acc) -> Tmp = hipe_rtl:mk_new_reg_gcsafe(), test_fixnums_1([Tmp|Args], [hipe_rtl:mk_alu(Tmp, Arg1, 'and', Arg2)|Acc]). +test_two_fixnums(Arg, Arg, FalseLab) -> + TrueLab = hipe_rtl:mk_new_label(), + [test_fixnum(Arg, hipe_rtl:label_name(TrueLab), FalseLab, 0.99), + TrueLab]; test_two_fixnums(Arg1, Arg2, FalseLab) -> TrueLab = hipe_rtl:mk_new_label(), case hipe_rtl:is_imm(Arg1) orelse hipe_rtl:is_imm(Arg2) of @@ -567,8 +573,8 @@ fixnum_andorxor(AluOp, Arg1, Arg2, Res) -> case AluOp of 'xor' -> Tmp = hipe_rtl:mk_new_reg_gcsafe(), - [hipe_rtl:mk_alu(Tmp, Arg1, 'xor', Arg2), % clears tag :-( - hipe_rtl:mk_alu(Res, Tmp, 'or', hipe_rtl:mk_imm(?TAG_IMMED1_SMALL))]; + [hipe_rtl:mk_alu(Tmp, Arg1, 'sub', hipe_rtl:mk_imm(?TAG_IMMED1_SMALL)), + hipe_rtl:mk_alu(Res, Tmp, 'xor', Arg2)]; _ -> hipe_rtl:mk_alu(Res, Arg1, AluOp, Arg2) end. @@ -595,6 +601,21 @@ fixnum_bsl(Arg1, Arg2, Res) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% Test if either of two values are immediate (primary tag IMMED1, 0x3) +test_either_immed(Arg1, Arg2, TrueLab, FalseLab) -> + %% This test assumes primary tag 0x0 is reserved and immed has tag 0x3 + 16#0 = ?TAG_PRIMARY_HEADER, + 16#3 = ?TAG_PRIMARY_IMMED1, + Tmp1 = hipe_rtl:mk_new_reg_gcsafe(), + Tmp2 = hipe_rtl:mk_new_reg_gcsafe(), + [hipe_rtl:mk_alu(Tmp1, Arg1, 'sub', hipe_rtl:mk_imm(1)), + hipe_rtl:mk_alu(Tmp2, Arg2, 'sub', hipe_rtl:mk_imm(1)), + hipe_rtl:mk_alu(Tmp2, Tmp2, 'or', Tmp1), + hipe_rtl:mk_branch(Tmp2, 'and', hipe_rtl:mk_imm(2), eq, + FalseLab, TrueLab, 0.01)]. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + unsafe_car(Dst, Arg) -> hipe_rtl:mk_load(Dst, Arg, hipe_rtl:mk_imm(-(?TAG_PRIMARY_LIST))). @@ -631,14 +652,13 @@ unsafe_update_element(Tuple, Index, Value) -> % Index is an immediate element(Dst, Index, Tuple, FailLabName, {tuple, A}, IndexInfo) -> FixnumOkLab = hipe_rtl:mk_new_label(), IndexOkLab = hipe_rtl:mk_new_label(), - Ptr = hipe_rtl:mk_new_reg(), % offset from Tuple UIndex = hipe_rtl:mk_new_reg_gcsafe(), Arity = hipe_rtl:mk_imm(A), - InvIndex = hipe_rtl:mk_new_reg_gcsafe(), - Offset = hipe_rtl:mk_new_reg_gcsafe(), case IndexInfo of valid -> %% This is no branch, 1 load and 3 alus = 4 instr + Offset = hipe_rtl:mk_new_reg_gcsafe(), + Ptr = hipe_rtl:mk_new_reg(), % offset from Tuple [untag_fixnum(UIndex, Index), hipe_rtl:mk_alu(Ptr, Tuple, 'sub', hipe_rtl:mk_imm(?TAG_PRIMARY_BOXED)), hipe_rtl:mk_alu(Offset, UIndex, 'sll', @@ -647,72 +667,56 @@ element(Dst, Index, Tuple, FailLabName, {tuple, A}, IndexInfo) -> fixnums -> %% This is 1 branch, 1 load and 4 alus = 6 instr [untag_fixnum(UIndex, Index), - hipe_rtl:mk_alu(Ptr, Tuple, 'sub',hipe_rtl:mk_imm(?TAG_PRIMARY_BOXED))| - gen_element_tail(Dst, Ptr, InvIndex, Arity, Offset, UIndex, - FailLabName, IndexOkLab)]; + gen_element_tail(Dst, Tuple, Arity, UIndex, FailLabName, IndexOkLab)]; _ -> %% This is 3 branches, 1 load and 5 alus = 9 instr [test_fixnum(Index, hipe_rtl:label_name(FixnumOkLab), FailLabName, 0.99), FixnumOkLab, untag_fixnum(UIndex, Index), - hipe_rtl:mk_alu(Ptr, Tuple, 'sub',hipe_rtl:mk_imm(?TAG_PRIMARY_BOXED))| - gen_element_tail(Dst, Ptr, InvIndex, Arity, Offset, UIndex, - FailLabName, IndexOkLab)] + gen_element_tail(Dst, Tuple, Arity, UIndex, FailLabName, IndexOkLab)] end; element(Dst, Index, Tuple, FailLabName, tuple, IndexInfo) -> FixnumOkLab = hipe_rtl:mk_new_label(), IndexOkLab = hipe_rtl:mk_new_label(), - Ptr = hipe_rtl:mk_new_reg(), % offset from Tuple Header = hipe_rtl:mk_new_reg_gcsafe(), UIndex = hipe_rtl:mk_new_reg_gcsafe(), Arity = hipe_rtl:mk_new_reg_gcsafe(), - InvIndex = hipe_rtl:mk_new_reg_gcsafe(), - Offset = hipe_rtl:mk_new_reg_gcsafe(), case IndexInfo of fixnums -> %% This is 1 branch, 2 loads and 5 alus = 8 instr - [hipe_rtl:mk_alu(Ptr, Tuple, 'sub', hipe_rtl:mk_imm(?TAG_PRIMARY_BOXED)), - hipe_rtl:mk_load(Header, Ptr, hipe_rtl:mk_imm(0)), + [get_header(Header, Tuple), untag_fixnum(UIndex, Index), hipe_rtl:mk_alu(Arity,Header,'srl',hipe_rtl:mk_imm(?HEADER_ARITY_OFFS))| - gen_element_tail(Dst, Ptr, InvIndex, Arity, Offset, UIndex, - FailLabName, IndexOkLab)]; + gen_element_tail(Dst, Tuple, Arity, UIndex, FailLabName, IndexOkLab)]; Num when is_integer(Num) -> %% This is 1 branch, 1 load and 3 alus = 5 instr - [hipe_rtl:mk_alu(Ptr, Tuple, 'sub', hipe_rtl:mk_imm(?TAG_PRIMARY_BOXED))| - gen_element_tail(Dst, Ptr, InvIndex, hipe_rtl:mk_imm(Num), - Offset, UIndex, FailLabName, IndexOkLab)]; + gen_element_tail(Dst, Tuple, hipe_rtl:mk_imm(Num), UIndex, FailLabName, + IndexOkLab); _ -> %% This is 2 branches, 2 loads and 6 alus = 10 instr [test_fixnum(Index, hipe_rtl:label_name(FixnumOkLab), FailLabName, 0.99), FixnumOkLab, - hipe_rtl:mk_alu(Ptr, Tuple, 'sub', hipe_rtl:mk_imm(?TAG_PRIMARY_BOXED)), - hipe_rtl:mk_load(Header, Ptr, hipe_rtl:mk_imm(0)), + get_header(Header, Tuple), untag_fixnum(UIndex, Index), hipe_rtl:mk_alu(Arity,Header,'srl',hipe_rtl:mk_imm(?HEADER_ARITY_OFFS))| - gen_element_tail(Dst, Ptr, InvIndex, Arity, Offset, UIndex, - FailLabName, IndexOkLab)] + gen_element_tail(Dst, Tuple, Arity, UIndex, FailLabName, IndexOkLab)] end; element(Dst, Index, Tuple, FailLabName, unknown, IndexInfo) -> FixnumOkLab = hipe_rtl:mk_new_label(), BoxedOkLab = hipe_rtl:mk_new_label(), TupleOkLab = hipe_rtl:mk_new_label(), IndexOkLab = hipe_rtl:mk_new_label(), - Ptr = hipe_rtl:mk_new_reg(), % offset from Tuple Header = hipe_rtl:mk_new_reg_gcsafe(), UIndex = hipe_rtl:mk_new_reg_gcsafe(), Arity = hipe_rtl:mk_new_reg_gcsafe(), - InvIndex = hipe_rtl:mk_new_reg_gcsafe(), - Offset = hipe_rtl:mk_new_reg_gcsafe(), case IndexInfo of fixnums -> %% This is 3 branches, 2 loads and 5 alus = 10 instr [test_is_boxed(Tuple, hipe_rtl:label_name(BoxedOkLab), FailLabName, 0.99), BoxedOkLab, - hipe_rtl:mk_alu(Ptr, Tuple, 'sub', hipe_rtl:mk_imm(?TAG_PRIMARY_BOXED)), - hipe_rtl:mk_load(Header, Ptr, hipe_rtl:mk_imm(0)), + get_header(Header, Tuple), hipe_rtl:mk_branch(Header, 'and', hipe_rtl:mk_imm(?TAG_HEADER_MASK), 'eq', hipe_rtl:label_name(TupleOkLab), FailLabName, 0.99), @@ -720,23 +724,21 @@ element(Dst, Index, Tuple, FailLabName, unknown, IndexInfo) -> untag_fixnum(UIndex, Index), hipe_rtl:mk_alu(Arity, Header, 'srl', hipe_rtl:mk_imm(?HEADER_ARITY_OFFS))| - gen_element_tail(Dst, Ptr, InvIndex, Arity, Offset, - UIndex, FailLabName, IndexOkLab)]; + gen_element_tail(Dst, Tuple, Arity, UIndex, FailLabName, IndexOkLab)]; Num when is_integer(Num) -> %% This is 3 branches, 2 loads and 4 alus = 9 instr [test_is_boxed(Tuple, hipe_rtl:label_name(BoxedOkLab), FailLabName, 0.99), BoxedOkLab, - hipe_rtl:mk_alu(Ptr, Tuple, 'sub', hipe_rtl:mk_imm(?TAG_PRIMARY_BOXED)), - hipe_rtl:mk_load(Header, Ptr, hipe_rtl:mk_imm(0)), + get_header(Header, Tuple), hipe_rtl:mk_branch(Header, 'and', hipe_rtl:mk_imm(?TAG_HEADER_MASK), 'eq', hipe_rtl:label_name(TupleOkLab), FailLabName, 0.99), TupleOkLab, hipe_rtl:mk_alu(Arity, Header, 'srl', hipe_rtl:mk_imm(?HEADER_ARITY_OFFS))| - gen_element_tail(Dst, Ptr, InvIndex, Arity, Offset, - hipe_rtl:mk_imm(Num), FailLabName, IndexOkLab)]; + gen_element_tail(Dst, Tuple, Arity, hipe_rtl:mk_imm(Num), FailLabName, + IndexOkLab)]; _ -> %% This is 4 branches, 2 loads, and 6 alus = 12 instr :( [test_fixnum(Index, hipe_rtl:label_name(FixnumOkLab), @@ -745,8 +747,7 @@ element(Dst, Index, Tuple, FailLabName, unknown, IndexInfo) -> test_is_boxed(Tuple, hipe_rtl:label_name(BoxedOkLab), FailLabName, 0.99), BoxedOkLab, - hipe_rtl:mk_alu(Ptr, Tuple, 'sub', hipe_rtl:mk_imm(?TAG_PRIMARY_BOXED)), - hipe_rtl:mk_load(Header, Ptr, hipe_rtl:mk_imm(0)), + get_header(Header, Tuple), hipe_rtl:mk_branch(Header, 'and', hipe_rtl:mk_imm(?TAG_HEADER_MASK), 'eq', hipe_rtl:label_name(TupleOkLab), FailLabName, 0.99), @@ -754,20 +755,21 @@ element(Dst, Index, Tuple, FailLabName, unknown, IndexInfo) -> untag_fixnum(UIndex, Index), hipe_rtl:mk_alu(Arity, Header, 'srl', hipe_rtl:mk_imm(?HEADER_ARITY_OFFS))| - gen_element_tail(Dst, Ptr, InvIndex, Arity, Offset, - UIndex, FailLabName, IndexOkLab)] + gen_element_tail(Dst, Tuple, Arity, UIndex, FailLabName, IndexOkLab)] end. -gen_element_tail(Dst, Ptr, InvIndex, Arity, Offset, - UIndex, FailLabName, IndexOkLab) -> +gen_element_tail(Dst, Tuple, Arity, UIndex, FailLabName, IndexOkLab) -> + ZeroIndex = hipe_rtl:mk_new_reg_gcsafe(), + Offset = hipe_rtl:mk_new_reg_gcsafe(), + Ptr = hipe_rtl:mk_new_reg(), % offset from Tuple %% now check that 1 <= UIndex <= Arity - %% if UIndex < 1, then (Arity - UIndex) >= Arity - %% if UIndex > Arity, then (Arity - UIndex) < 0, which is >=u Arity - %% otherwise, 0 <= (Arity - UIndex) < Arity - [hipe_rtl:mk_alu(InvIndex, Arity, 'sub', UIndex), - hipe_rtl:mk_branch(InvIndex, 'geu', Arity, FailLabName, + %% by checking the equivalent (except for when Arity>=2^(WordSize-1)) + %% (UIndex - 1) <u Arity + [hipe_rtl:mk_alu(ZeroIndex, UIndex, 'sub', hipe_rtl:mk_imm(1)), + hipe_rtl:mk_branch(ZeroIndex, 'geu', Arity, FailLabName, hipe_rtl:label_name(IndexOkLab), 0.01), IndexOkLab, + hipe_rtl:mk_alu(Ptr, Tuple, 'sub', hipe_rtl:mk_imm(?TAG_PRIMARY_BOXED)), hipe_rtl:mk_alu(Offset, UIndex, 'sll', hipe_rtl:mk_imm(hipe_rtl_arch:log2_word_size())), hipe_rtl:mk_load(Dst, Ptr, Offset)]. |