diff options
Diffstat (limited to 'lib/hipe/sparc/hipe_rtl_to_sparc.erl')
-rw-r--r-- | lib/hipe/sparc/hipe_rtl_to_sparc.erl | 208 |
1 files changed, 74 insertions, 134 deletions
diff --git a/lib/hipe/sparc/hipe_rtl_to_sparc.erl b/lib/hipe/sparc/hipe_rtl_to_sparc.erl index eef5ba8d96..d1a6b15508 100644 --- a/lib/hipe/sparc/hipe_rtl_to_sparc.erl +++ b/lib/hipe/sparc/hipe_rtl_to_sparc.erl @@ -1,9 +1,5 @@ %% -*- erlang-indent-level: 2 -*- %% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2005-2016. 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. %% You may obtain a copy of the License at @@ -15,9 +11,6 @@ %% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %% See the License for the specific language governing permissions and %% limitations under the License. -%% -%% %CopyrightEnd% -%% -module(hipe_rtl_to_sparc). @@ -63,7 +56,6 @@ conv_insn(I, Map, Data) -> case I of #alu{} -> conv_alu(I, Map, Data); #alub{} -> conv_alub(I, Map, Data); - #branch{} -> conv_branch(I, Map, Data); #call{} -> conv_call(I, Map, Data); #comment{} -> conv_comment(I, Map, Data); #enter{} -> conv_enter(I, Map, Data); @@ -281,7 +273,12 @@ mk_alu_rs(XAluOp, Src1, Src2, Dst) -> conv_alub(I, Map, Data) -> %% dst = src1 aluop src2; if COND goto label - {Dst, Map0} = conv_dst(hipe_rtl:alub_dst(I), Map), + HasDst = hipe_rtl:alub_has_dst(I), + {Dst, Map0} = + case HasDst of + false -> {hipe_sparc:mk_g0(), Map}; + true -> conv_dst(hipe_rtl:alub_dst(I), Map) + end, {Src1, Map1} = conv_src(hipe_rtl:alub_src1(I), Map0), {Src2, Map2} = conv_src(hipe_rtl:alub_src2(I), Map1), Cond = conv_cond(hipe_rtl:alub_cond(I)), @@ -307,67 +304,33 @@ conv_alub(I, Map, Data) -> I1 ++ [hipe_sparc:mk_rdy(TmpHi), hipe_sparc:mk_alu('sra', Dst, hipe_sparc:mk_uimm5(31), TmpSign) | - conv_alub2(G0, TmpSign, 'sub', NewCond, TmpHi, I)]; + conv_alub2(G0, TmpSign, 'cmpcc', NewCond, TmpHi, I)]; _ -> - conv_alub2(Dst, Src1, RtlAlubOp, Cond, Src2, I) + XAluOp = + case (not HasDst) andalso RtlAlubOp =:= 'sub' of + true -> 'cmpcc'; % == a subcc that commutes + false -> conv_alubop_cc(RtlAlubOp) + end, + conv_alub2(Dst, Src1, XAluOp, Cond, Src2, I) end, {I2, Map2, Data}. --ifdef(notdef). % XXX: only for sparc64, alas -conv_alub2(Dst, Src1, RtlAlubOp, Cond, Src2, I) -> - case conv_cond_rcond(Cond) of - [] -> - conv_alub_bp(Dst, Src1, RtlAlubOp, Cond, Src2, I); - RCond -> - conv_alub_br(Dst, Src1, RtlAlubOp, RCond, Src2, I) - end. +conv_alub2(Dst, Src1, XAluOp, Cond, Src2, I) -> + conv_alub_bp(Dst, Src1, XAluOp, Cond, Src2, I). -conv_alub_br(Dst, Src1, RtlAlubOp, RCond, Src2, I) -> - TrueLab = hipe_rtl:alub_true_label(I), - FalseLab = hipe_rtl:alub_false_label(I), - Pred = hipe_rtl:alub_pred(I), - %% "Dst = Src1 AluOp Src2; if COND" becomes - %% "Dst = Src1 AluOp Src2; if-COND(Dst)" - {I2, _DidCommute} = mk_alu(conv_alubop_nocc(RtlAlubOp), Src1, Src2, Dst), - I2 ++ mk_pseudo_br(RCond, Dst, TrueLab, FalseLab, Pred). - -conv_cond_rcond(Cond) -> - case Cond of - 'e' -> 'z'; - 'ne' -> 'nz'; - 'g' -> 'gz'; - 'ge' -> 'gez'; - 'l' -> 'lz'; - 'le' -> 'lez'; - _ -> [] % vs, vc, gu, geu, lu, leu - end. - -conv_alubop_nocc(RtlAlubOp) -> - case RtlAlubOp of - 'add' -> 'add'; - 'sub' -> 'sub'; - %% mul: handled elsewhere - 'or' -> 'or'; - 'and' -> 'and'; - 'xor' -> 'xor' - %% no shift ops - end. - -mk_pseudo_br(RCond, Dst, TrueLab, FalseLab, Pred) -> - [hipe_sparc:mk_pseudo_br(RCond, Dst, TrueLab, FalseLab, Pred)]. --else. -conv_alub2(Dst, Src1, RtlAlubOp, Cond, Src2, I) -> - conv_alub_bp(Dst, Src1, RtlAlubOp, Cond, Src2, I). --endif. - -conv_alub_bp(Dst, Src1, RtlAlubOp, Cond, Src2, I) -> +conv_alub_bp(Dst, Src1, XAluOp, Cond, Src2, I) -> TrueLab = hipe_rtl:alub_true_label(I), FalseLab = hipe_rtl:alub_false_label(I), Pred = hipe_rtl:alub_pred(I), %% "Dst = Src1 AluOp Src2; if COND" becomes %% "Dst = Src1 AluOpCC Src22; if-COND(CC)" - {I2, _DidCommute} = mk_alu(conv_alubop_cc(RtlAlubOp), Src1, Src2, Dst), - I2 ++ mk_pseudo_bp(Cond, TrueLab, FalseLab, Pred). + {I2, DidCommute} = mk_alu(XAluOp, Src1, Src2, Dst), + NewCond = + case DidCommute andalso XAluOp =:= 'cmpcc' of + true -> commute_cond(Cond); % subcc does not commute; its conditions do + false -> Cond + end, + I2 ++ mk_pseudo_bp(NewCond, TrueLab, FalseLab, Pred). conv_alubop_cc(RtlAlubOp) -> case RtlAlubOp of @@ -380,69 +343,6 @@ conv_alubop_cc(RtlAlubOp) -> %% no shift ops end. -conv_branch(I, Map, Data) -> - %% <unused> = src1 - src2; if COND goto label - {Src1, Map0} = conv_src(hipe_rtl:branch_src1(I), Map), - {Src2, Map1} = conv_src(hipe_rtl:branch_src2(I), Map0), - Cond = conv_cond(hipe_rtl:branch_cond(I)), - I2 = conv_branch2(Src1, Cond, Src2, I), - {I2, Map1, Data}. - --ifdef(notdef). % XXX: only for sparc64, alas -conv_branch2(Src1, Cond, Src2, I) -> - case conv_cond_rcond(Cond) of - [] -> - conv_branch_bp(Src1, Cond, Src2, I); - RCond -> - conv_branch_br(Src1, RCond, Src2, I) - end. - -conv_branch_br(Src1, RCond, Src2, I) -> - TrueLab = hipe_rtl:branch_true_label(I), - FalseLab = hipe_rtl:branch_false_label(I), - Pred = hipe_rtl:branch_pred(I), - %% "if src1-COND-src2" becomes - %% "sub src1,src2,tmp; if-COND(tmp)" - Dst = hipe_sparc:mk_new_temp('untagged'), - XAluOp = 'cmp', % == a sub that commutes - {I1, DidCommute} = mk_alu(XAluOp, Src1, Src2, Dst), - NewRCond = - case DidCommute of - true -> commute_rcond(RCond); - false -> RCond - end, - I1 ++ mk_pseudo_br(NewRCond, Dst, TrueLab, FalseLab, Pred). - -commute_rcond(RCond) -> % if x RCond y, then y commute_rcond(RCond) x - case RCond of - 'z' -> 'z'; % ==, == - 'nz' -> 'nz'; % !=, != - 'gz' -> 'lz'; % >, < - 'gez' -> 'lez'; % >=, <= - 'lz' -> 'gz'; % <, > - 'lez' -> 'gez' % <=, >= - end. --else. -conv_branch2(Src1, Cond, Src2, I) -> - conv_branch_bp(Src1, Cond, Src2, I). --endif. - -conv_branch_bp(Src1, Cond, Src2, I) -> - TrueLab = hipe_rtl:branch_true_label(I), - FalseLab = hipe_rtl:branch_false_label(I), - Pred = hipe_rtl:branch_pred(I), - %% "if src1-COND-src2" becomes - %% "subcc src1,src2,%g0; if-COND(CC)" - Dst = hipe_sparc:mk_g0(), - XAluOp = 'cmpcc', % == a subcc that commutes - {I1, DidCommute} = mk_alu(XAluOp, Src1, Src2, Dst), - NewCond = - case DidCommute of - true -> commute_cond(Cond); - false -> Cond - end, - I1 ++ mk_pseudo_bp(NewCond, TrueLab, FalseLab, Pred). - conv_call(I, Map, Data) -> {Args, Map0} = conv_src_list(hipe_rtl:call_arglist(I), Map), {Dsts, Map1} = conv_dst_list(hipe_rtl:call_dstlist(I), Map0), @@ -625,7 +525,7 @@ conv_return(I, Map, Data) -> {I2, Map0, Data}. conv_store(I, Map, Data) -> - {Base1, Map0} = conv_dst(hipe_rtl:store_base(I), Map), % no immediates allowed + {Base1, Map0} = conv_src(hipe_rtl:store_base(I), Map), {Src, Map1} = conv_src(hipe_rtl:store_src(I), Map0), {Base2, Map2} = conv_src(hipe_rtl:store_offset(I), Map1), StOp = conv_stop(hipe_rtl:store_size(I)), @@ -649,13 +549,27 @@ mk_store(StOp, Src, Base1, Base2) -> end. mk_store2(StOp, Src, Base1, Base2) -> - case hipe_sparc:is_temp(Base2) of + case hipe_sparc:is_temp(Base1) of true -> - mk_store_rr(StOp, Src, Base1, Base2); + case hipe_sparc:is_temp(Base2) of + true -> + mk_store_rr(StOp, Src, Base1, Base2); + _ -> + mk_store_ri(StOp, Src, Base1, Base2) + end; _ -> - mk_store_ri(StOp, Src, Base1, Base2) + case hipe_sparc:is_temp(Base2) of + true -> + mk_store_ri(StOp, Src, Base2, Base1); + _ -> + mk_store_ii(StOp, Src, Base1, Base2) + end end. +mk_store_ii(StOp, Src, Base, Disp) -> + Tmp = new_untagged_temp(), + mk_set(Base, Tmp, mk_store_ri(StOp, Src, Tmp, Disp)). + mk_store_ri(StOp, Src, Base, Disp) -> hipe_sparc:mk_store(StOp, Src, Base, Disp, 'new', []). @@ -750,13 +664,25 @@ xaluop_commutes(XAluOp) -> xaluop_is_shift(XAluOp) -> case XAluOp of + 'add' -> false; + 'addcc' -> false; + 'and' -> false; + 'andcc' -> false; + 'cmpcc' -> false; + 'ldsb' -> false; + 'ldub' -> false; + 'lduw' -> false; + 'or' -> false; 'sll' -> true; - 'srl' -> true; + %% 'sllx' -> true; + 'smul' -> false; 'sra' -> true; - 'sllx' -> true; - 'srlx' -> true; - 'srax' -> true; - _ -> false + %% 'srax' -> true; + 'srl' -> true; + %% 'srlx' -> true; + 'sub' -> false; + 'subcc' -> false; + 'xor' -> false end. %%% Convert an extended SPARC AluOp back to a plain AluOp. @@ -764,9 +690,23 @@ xaluop_is_shift(XAluOp) -> xaluop_normalise(XAluOp) -> case XAluOp of - 'cmp' -> 'sub'; + 'add' -> 'add'; + 'addcc' -> 'addcc'; + 'and' -> 'and'; + 'andcc' -> 'andcc'; + %% 'cmp' -> 'sub'; 'cmpcc' -> 'subcc'; - _ -> XAluOp + 'ldsb' -> 'ldsb'; + 'ldub' -> 'ldub'; + 'lduw' -> 'lduw'; + 'or' -> 'or'; + 'sll' -> 'sll'; + 'smul' -> 'smul'; + 'sra' -> 'sra'; + 'srl' -> 'srl'; + 'sub' -> 'sub'; + 'subcc' -> 'subcc'; + 'xor' -> 'xor' end. %%% Convert an RTL condition code. |