From a19e3f0e1e82b793d58f9ef0db907ba637793fb6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Magnus=20L=C3=A5ng?= Date: Thu, 16 Jun 2016 16:50:46 +0200 Subject: hipe_sparc: Minimise CFG<->linear conversions Now, there will only ever be a single Linear->CFG conversion, just after lowering from RTL, and only ever a single CFG->Linear conversion, just before the finalise pass. Both of these now happen in hipe_sparc_main. --- lib/hipe/sparc/hipe_sparc_cfg.erl | 1 + lib/hipe/sparc/hipe_sparc_frame.erl | 65 ++++++++++++---------- lib/hipe/sparc/hipe_sparc_main.erl | 8 ++- lib/hipe/sparc/hipe_sparc_ra.erl | 32 +++++------ lib/hipe/sparc/hipe_sparc_ra_finalise.erl | 11 ++-- lib/hipe/sparc/hipe_sparc_ra_ls.erl | 15 ++--- lib/hipe/sparc/hipe_sparc_ra_naive.erl | 8 +-- lib/hipe/sparc/hipe_sparc_ra_postconditions.erl | 19 ++++--- lib/hipe/sparc/hipe_sparc_ra_postconditions_fp.erl | 15 +++-- 9 files changed, 93 insertions(+), 81 deletions(-) (limited to 'lib/hipe/sparc') diff --git a/lib/hipe/sparc/hipe_sparc_cfg.erl b/lib/hipe/sparc/hipe_sparc_cfg.erl index 0b2c77f27b..957c8a0d24 100644 --- a/lib/hipe/sparc/hipe_sparc_cfg.erl +++ b/lib/hipe/sparc/hipe_sparc_cfg.erl @@ -24,6 +24,7 @@ -export([init/1, labels/1, start_label/1, succ/2, + map_bbs/2, fold_bbs/3, bb/2, bb_add/3]). -export([postorder/1, reverse_postorder/1]). -export([linearise/1]). diff --git a/lib/hipe/sparc/hipe_sparc_frame.erl b/lib/hipe/sparc/hipe_sparc_frame.erl index a42c1983f4..37f29e660a 100644 --- a/lib/hipe/sparc/hipe_sparc_frame.erl +++ b/lib/hipe/sparc/hipe_sparc_frame.erl @@ -25,16 +25,14 @@ -include("hipe_sparc.hrl"). -include("../rtl/hipe_literals.hrl"). -frame(Defun) -> - Formals = fix_formals(hipe_sparc:defun_formals(Defun)), - Temps0 = all_temps(hipe_sparc:defun_code(Defun), Formals), - MinFrame = defun_minframe(Defun), +frame(CFG) -> + Formals = fix_formals(hipe_sparc_cfg:params(CFG)), + Temps0 = all_temps(CFG, Formals), + MinFrame = defun_minframe(CFG), Temps = ensure_minframe(MinFrame, Temps0), - ClobbersRA = clobbers_ra(hipe_sparc:defun_code(Defun)), - CFG0 = hipe_sparc_cfg:init(Defun), - Liveness = hipe_sparc_liveness_all:analyse(CFG0), - CFG1 = do_body(CFG0, Liveness, Formals, Temps, ClobbersRA), - hipe_sparc_cfg:linearise(CFG1). + ClobbersRA = clobbers_ra(CFG), + Liveness = hipe_sparc_liveness_all:analyse(CFG), + do_body(CFG, Liveness, Formals, Temps, ClobbersRA). fix_formals(Formals) -> fix_formals(hipe_sparc_registers:nr_args(), Formals). @@ -550,29 +548,41 @@ temp_is_pseudo(Temp) -> %%% Detect if a Defun's body clobbers RA. %%% -clobbers_ra(Insns) -> - case Insns of - [#pseudo_call{}|_] -> true; - %% moves to RA cannot occur yet - [_|Rest] -> clobbers_ra(Rest); - [] -> false +clobbers_ra(CFG) -> + any_insn(fun(#pseudo_call{}) -> true; + (_) -> false + end, CFG). + +any_insn(Pred, CFG) -> + %% Abuse fold to do an efficient "any"-operation using nonlocal control flow + FoundSatisfying = make_ref(), + try fold_insns(fun (I, _) -> + case Pred(I) of + true -> throw(FoundSatisfying); + false -> false + end + end, false, CFG) + of _ -> false + catch FoundSatisfying -> true end. %%% %%% Build the set of all temps used in a Defun's body. %%% -all_temps(Code, Formals) -> - S0 = find_temps(Code, tset_empty()), +all_temps(CFG, Formals) -> + S0 = fold_insns(fun find_temps/2, tset_empty(), CFG), S1 = tset_del_list(S0, Formals), tset_filter(S1, fun(T) -> temp_is_pseudo(T) end). -find_temps([I|Insns], S0) -> +find_temps(I, S0) -> S1 = tset_add_list(S0, hipe_sparc_defuse:insn_def_all(I)), - S2 = tset_add_list(S1, hipe_sparc_defuse:insn_use_all(I)), - find_temps(Insns, S2); -find_temps([], S) -> - S. + tset_add_list(S1, hipe_sparc_defuse:insn_use_all(I)). + +fold_insns(Fun, InitAcc, CFG) -> + hipe_sparc_cfg:fold_bbs( + fun(_, BB, Acc0) -> lists:foldl(Fun, Acc0, hipe_bb:code(BB)) end, + InitAcc, CFG). tset_empty() -> gb_sets:new(). @@ -601,16 +611,11 @@ tset_to_list(S) -> %%% in the middle of a tailcall. %%% -defun_minframe(Defun) -> - MaxTailArity = body_mta(hipe_sparc:defun_code(Defun), 0), - MyArity = length(fix_formals(hipe_sparc:defun_formals(Defun))), +defun_minframe(CFG) -> + MaxTailArity = fold_insns(fun insn_mta/2, 0, CFG), + MyArity = length(fix_formals(hipe_sparc_cfg:params(CFG))), erlang:max(MaxTailArity - MyArity, 0). -body_mta([I|Code], MTA) -> - body_mta(Code, insn_mta(I, MTA)); -body_mta([], MTA) -> - MTA. - insn_mta(I, MTA) -> case I of #pseudo_tailcall{arity=Arity} -> diff --git a/lib/hipe/sparc/hipe_sparc_main.erl b/lib/hipe/sparc/hipe_sparc_main.erl index c16751c7bd..8e9c560bb2 100644 --- a/lib/hipe/sparc/hipe_sparc_main.erl +++ b/lib/hipe/sparc/hipe_sparc_main.erl @@ -24,12 +24,14 @@ rtl_to_sparc(MFA, RTL, Options) -> Defun1 = hipe_rtl_to_sparc:translate(RTL), + CFG1 = hipe_sparc_cfg:init(Defun1), %% io:format("~w: after translate\n", [?MODULE]), %% hipe_sparc_pp:pp(Defun1), - Defun2 = hipe_sparc_ra:ra(Defun1, Options), + CFG2 = hipe_sparc_ra:ra(CFG1, Options), %% io:format("~w: after regalloc\n", [?MODULE]), - %% hipe_sparc_pp:pp(Defun2), - Defun3 = hipe_sparc_frame:frame(Defun2), + %% hipe_sparc_pp:pp(hipe_sparc_cfg:linearise(CFG2)), + CFG3 = hipe_sparc_frame:frame(CFG2), + Defun3 = hipe_sparc_cfg:linearise(CFG3), %% io:format("~w: after frame\n", [?MODULE]), %% hipe_sparc_pp:pp(Defun3), Defun4 = hipe_sparc_finalise:finalise(Defun3), diff --git a/lib/hipe/sparc/hipe_sparc_ra.erl b/lib/hipe/sparc/hipe_sparc_ra.erl index afea8c9b4c..5f955c2058 100644 --- a/lib/hipe/sparc/hipe_sparc_ra.erl +++ b/lib/hipe/sparc/hipe_sparc_ra.erl @@ -22,36 +22,36 @@ -module(hipe_sparc_ra). -export([ra/2]). -ra(Defun0, Options) -> - %% hipe_sparc_pp:pp(Defun0), - {Defun1, Coloring_fp, SpillIndex} +ra(CFG0, Options) -> + %% hipe_sparc_pp:pp(hipe_sparc_cfg:linearise(CFG0)), + {CFG1, Coloring_fp, SpillIndex} = case proplists:get_bool(inline_fp, Options) of true -> - hipe_regalloc_loop:ra_fp(Defun0, Options, + hipe_regalloc_loop:ra_fp(CFG0, Options, hipe_coalescing_regalloc, hipe_sparc_specific_fp); false -> - {Defun0,[],0} + {CFG0,[],0} end, - %% hipe_sparc_pp:pp(Defun1), - {Defun2, Coloring} + %% hipe_sparc_pp:pp(hipe_sparc_cfg:linearise(CFG1)), + {CFG2, Coloring} = case proplists:get_value(regalloc, Options, coalescing) of coalescing -> - ra(Defun1, SpillIndex, Options, hipe_coalescing_regalloc); + ra(CFG1, SpillIndex, Options, hipe_coalescing_regalloc); optimistic -> - ra(Defun1, SpillIndex, Options, hipe_optimistic_regalloc); + ra(CFG1, SpillIndex, Options, hipe_optimistic_regalloc); graph_color -> - ra(Defun1, SpillIndex, Options, hipe_graph_coloring_regalloc); + ra(CFG1, SpillIndex, Options, hipe_graph_coloring_regalloc); linear_scan -> - hipe_sparc_ra_ls:ra(Defun1, SpillIndex, Options); + hipe_sparc_ra_ls:ra(CFG1, SpillIndex, Options); naive -> - hipe_sparc_ra_naive:ra(Defun1, Coloring_fp, Options); + hipe_sparc_ra_naive:ra(CFG1, Coloring_fp, Options); _ -> exit({unknown_regalloc_compiler_option, proplists:get_value(regalloc,Options)}) end, - %% hipe_sparc_pp:pp(Defun2), - hipe_sparc_ra_finalise:finalise(Defun2, Coloring, Coloring_fp). + %% hipe_sparc_pp:pp(hipe_sparc_cfg:linearise(CFG2)), + hipe_sparc_ra_finalise:finalise(CFG2, Coloring, Coloring_fp). -ra(Defun, SpillIndex, Options, RegAllocMod) -> - hipe_regalloc_loop:ra(Defun, SpillIndex, Options, RegAllocMod, hipe_sparc_specific). +ra(CFG, SpillIndex, Options, RegAllocMod) -> + hipe_regalloc_loop:ra(CFG, SpillIndex, Options, RegAllocMod, hipe_sparc_specific). diff --git a/lib/hipe/sparc/hipe_sparc_ra_finalise.erl b/lib/hipe/sparc/hipe_sparc_ra_finalise.erl index dc1e69c101..5d6056071c 100644 --- a/lib/hipe/sparc/hipe_sparc_ra_finalise.erl +++ b/lib/hipe/sparc/hipe_sparc_ra_finalise.erl @@ -23,13 +23,14 @@ -export([finalise/3]). -include("hipe_sparc.hrl"). -finalise(Defun, TempMap, FPMap0) -> - Code = hipe_sparc:defun_code(Defun), - {_, SpillLimit} = hipe_sparc:defun_var_range(Defun), +finalise(CFG, TempMap, FPMap0) -> + {_, SpillLimit} = hipe_gensym:var_range(sparc), Map = mk_ra_map(TempMap, SpillLimit), FPMap1 = mk_ra_map_fp(FPMap0, SpillLimit), - NewCode = ra_code(Code, Map, FPMap1, []), - Defun#defun{code=NewCode}. + hipe_sparc_cfg:map_bbs(fun(_Lbl, BB) -> ra_bb(BB, Map, FPMap1) end, CFG). + +ra_bb(BB, Map, FpMap) -> + hipe_bb:code_update(BB, ra_code(hipe_bb:code(BB), Map, FpMap, [])). ra_code([I|Insns], Map, FPMap, Accum) -> ra_code(Insns, Map, FPMap, [ra_insn(I, Map, FPMap) | Accum]); diff --git a/lib/hipe/sparc/hipe_sparc_ra_ls.erl b/lib/hipe/sparc/hipe_sparc_ra_ls.erl index f2bceb8f2c..ced9addd31 100644 --- a/lib/hipe/sparc/hipe_sparc_ra_ls.erl +++ b/lib/hipe/sparc/hipe_sparc_ra_ls.erl @@ -23,14 +23,11 @@ -module(hipe_sparc_ra_ls). -export([ra/3]). -ra(Defun, SpillIndex, Options) -> - NewDefun = Defun, %% hipe_${ARCH}_ra_rename:rename(Defun,Options), - CFG = hipe_sparc_cfg:init(NewDefun), +ra(CFG, SpillIndex, Options) -> SpillLimit = hipe_sparc_specific:number_of_temporaries(CFG), - alloc(NewDefun, SpillIndex, SpillLimit, Options). + alloc(CFG, SpillIndex, SpillLimit, Options). -alloc(Defun, SpillIndex, SpillLimit, Options) -> - CFG = hipe_sparc_cfg:init(Defun), +alloc(CFG, SpillIndex, SpillLimit, Options) -> {Coloring, _NewSpillIndex, Liveness} = regalloc( CFG, @@ -41,16 +38,16 @@ alloc(Defun, SpillIndex, SpillLimit, Options) -> [hipe_sparc_cfg:start_label(CFG)], SpillIndex, SpillLimit, Options, hipe_sparc_specific), - {NewDefun, _DidSpill} = + {NewCFG, _DidSpill} = hipe_sparc_ra_postconditions:check_and_rewrite( - Defun, Coloring, 'linearscan'), + CFG, Coloring, 'linearscan'), TempMap = hipe_temp_map:cols2tuple(Coloring, hipe_sparc_specific), {TempMap2,_NewSpillIndex2} = hipe_spillmin:stackalloc(CFG, Liveness, [], SpillIndex, Options, hipe_sparc_specific, TempMap), Coloring2 = hipe_spillmin:mapmerge(hipe_temp_map:to_substlist(TempMap), TempMap2), - {NewDefun, Coloring2}. + {NewCFG, Coloring2}. regalloc(CFG, PhysRegs, Entrypoints, SpillIndex, DontSpill, Options, Target) -> hipe_ls_regalloc:regalloc( diff --git a/lib/hipe/sparc/hipe_sparc_ra_naive.erl b/lib/hipe/sparc/hipe_sparc_ra_naive.erl index b6c33dec6c..f621d94553 100644 --- a/lib/hipe/sparc/hipe_sparc_ra_naive.erl +++ b/lib/hipe/sparc/hipe_sparc_ra_naive.erl @@ -24,7 +24,7 @@ -include("hipe_sparc.hrl"). -ra(Defun, _Coloring_fp, _Options) -> % -> {Defun, Coloring} - {NewDefun,_DidSpill} = - hipe_sparc_ra_postconditions:check_and_rewrite2(Defun, [], 'naive'), - {NewDefun, []}. +ra(CFG, _Coloring_fp, _Options) -> % -> {CFG, Coloring} + {NewCFG,_DidSpill} = + hipe_sparc_ra_postconditions:check_and_rewrite2(CFG, [], 'naive'), + {NewCFG, []}. diff --git a/lib/hipe/sparc/hipe_sparc_ra_postconditions.erl b/lib/hipe/sparc/hipe_sparc_ra_postconditions.erl index ab31b3c8d9..0336a6c59f 100644 --- a/lib/hipe/sparc/hipe_sparc_ra_postconditions.erl +++ b/lib/hipe/sparc/hipe_sparc_ra_postconditions.erl @@ -25,17 +25,13 @@ -include("hipe_sparc.hrl"). -check_and_rewrite(Defun, Coloring, Allocator) -> +check_and_rewrite(CFG, Coloring, Allocator) -> TempMap = hipe_temp_map:cols2tuple(Coloring, hipe_sparc_specific), - check_and_rewrite2(Defun, TempMap, Allocator). + check_and_rewrite2(CFG, TempMap, Allocator). -check_and_rewrite2(Defun, TempMap, Allocator) -> +check_and_rewrite2(CFG, TempMap, Allocator) -> Strategy = strategy(Allocator), - #defun{code=Code0} = Defun, - {Code1,DidSpill} = do_insns(Code0, TempMap, Strategy, [], false), - VarRange = {0, hipe_gensym:get_var(sparc)}, - {Defun#defun{code=Code1, var_range=VarRange}, - DidSpill}. + do_bbs(hipe_sparc_cfg:labels(CFG), TempMap, Strategy, CFG, false). strategy(Allocator) -> case Allocator of @@ -44,6 +40,13 @@ strategy(Allocator) -> 'naive' -> 'fixed' end. +do_bbs([], _, _, CFG, DidSpill) -> {CFG, DidSpill}; +do_bbs([Lbl|Lbls], TempMap, Strategy, CFG0, DidSpill0) -> + Code0 = hipe_bb:code(BB = hipe_sparc_cfg:bb(CFG0, Lbl)), + {Code, DidSpill} = do_insns(Code0, TempMap, Strategy, [], DidSpill0), + CFG = hipe_sparc_cfg:bb_add(CFG0, Lbl, hipe_bb:code_update(BB, Code)), + do_bbs(Lbls, TempMap, Strategy, CFG, DidSpill). + do_insns([I|Insns], TempMap, Strategy, Accum, DidSpill0) -> {NewIs, DidSpill1} = do_insn(I, TempMap, Strategy), do_insns(Insns, TempMap, Strategy, lists:reverse(NewIs, Accum), DidSpill0 or DidSpill1); diff --git a/lib/hipe/sparc/hipe_sparc_ra_postconditions_fp.erl b/lib/hipe/sparc/hipe_sparc_ra_postconditions_fp.erl index d893ac26e9..d3e1d8cf93 100644 --- a/lib/hipe/sparc/hipe_sparc_ra_postconditions_fp.erl +++ b/lib/hipe/sparc/hipe_sparc_ra_postconditions_fp.erl @@ -25,13 +25,16 @@ -include("hipe_sparc.hrl"). -check_and_rewrite(Defun, Coloring) -> +check_and_rewrite(CFG, Coloring) -> TempMap = hipe_temp_map:cols2tuple(Coloring, hipe_sparc_specific_fp), - #defun{code=Code0} = Defun, - {Code1,DidSpill} = do_insns(Code0, TempMap, [], false), - VarRange = {0, hipe_gensym:get_var(sparc)}, - {Defun#defun{code=Code1, var_range=VarRange}, - DidSpill}. + do_bbs(hipe_sparc_cfg:labels(CFG), TempMap, CFG, false). + +do_bbs([], _TempMap, CFG, DidSpill) -> {CFG, DidSpill}; +do_bbs([Lbl|Lbls], TempMap, CFG0, DidSpill0) -> + Code0 = hipe_bb:code(BB = hipe_sparc_cfg:bb(CFG0, Lbl)), + {Code, DidSpill} = do_insns(Code0, TempMap, [], DidSpill0), + CFG = hipe_sparc_cfg:bb_add(CFG0, Lbl, hipe_bb:code_update(BB, Code)), + do_bbs(Lbls, TempMap, CFG, DidSpill). do_insns([I|Insns], TempMap, Accum, DidSpill0) -> {NewIs, DidSpill1} = do_insn(I, TempMap), -- cgit v1.2.3