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%%----------------------------------------------------------------------
%% File : hipe_sparc_specific_fp.erl
%% Author : Ingemar berg <d95ina@it.uu.se>
%% Purpose : Provide target specific functions to the register allocator
%% Created : 2 Apr 2000 by Ingemar berg <d95ina@it.uu.se>
%%----------------------------------------------------------------------
-module(hipe_sparc_specific_fp).
-author('d95ina@it.uu.se').
-export([allocatable/0,
is_precoloured/1,
%% var_range/1,
%% def_use/1,
%% is_fixed/1,
%% non_alloc/1,
%% predictionorder/1,
%% is_move/1,
number_of_temporaries/1
]).
%% The following exports are used as M:F(...) calls from other modules;
%% e.g. hipe_x86_ra_ls.
-export([analyze/1,
bb/2,
args/1,
labels/1,
livein/2,
liveout/2,
succ_map/1,
uses/1,
defines/1,
is_arg/1,
is_global/1,
reg_nr/1,
physical_name/1,
new_spill_index/1,
breadthorder/1,
postorder/1,
reverse_postorder/1]).
%% Liveness stuff
analyze(CFG) ->
hipe_sparc_liveness:analyze(CFG).
liveout(BB_in_out_liveness,Label) ->
hipe_sparc_liveness:liveout(BB_in_out_liveness,Label).
livein(Liveness,L) ->
hipe_sparc_liveness:livein(Liveness,L).
%% Registers stuff
allocatable() ->
[4,6,8,10,12,14,16,18,20,22,24,26,28,30].
all_precoloured() -> %% Is this correct?
lists:seq(0, 31).
is_precoloured(Reg) ->
lists:member(Reg, all_precoloured()).
physical_name(Reg) ->
Reg.
is_global(_R) -> %% A fp_reg can't be global.
false.
%% is_fixed(_R) -> %% A fp_reg can't be fixed.
%% false.
is_arg(_R) ->
false.
%% CFG stuff
%% Return registers that are used to pass arguments to the CFG.
args(_CFG) ->
[].
%% Arity = arity(CFG),
%% arg_vars(Arity).
%% non_alloc(_CFG) ->
%% [].
%%
%% arg_vars(N, Acc) when N >= 0 ->
%% arg_vars(N-1, [arg_var(N)|Acc]);
%% arg_vars(_, Acc) -> Acc.
%%
%% arg_vars(N) ->
%% case N >= hipe_sparc_registers:register_args() of
%% false ->
%% arg_vars(N-1,[]);
%% true ->
%% arg_vars(hipe_sparc_registers:register_args()-1,[])
%% end.
%%
%% arg_var(X) ->
%% hipe_sparc_registers:arg(X).
%%
%% arity(CFG) ->
%% {_,_,Arity} = hipe_sparc_cfg:function(CFG).
labels(CFG) ->
hipe_sparc_cfg:labels(CFG).
reverse_postorder(CFG) ->
hipe_sparc_cfg:reverse_postorder(CFG).
breadthorder(CFG) ->
hipe_sparc_cfg:breadthorder(CFG).
postorder(CFG) ->
hipe_sparc_cfg:postorder(CFG).
%% predictionorder(CFG) ->
%% hipe_sparc_cfg:predictionorder(CFG).
%% var_range(_CFG) ->
%% hipe_gensym:get_var(sparc).
number_of_temporaries(_CFG) ->
Highest_temporary = hipe_gensym:get_var(sparc),
%% Since we can have temps from 0 to Max adjust by +1.
%% (Well, on sparc this is not entirely true, but lets pretend...)
Highest_temporary + 1.
bb(CFG,L) ->
hipe_sparc_cfg:bb(CFG,L).
succ_map(CFG) ->
hipe_sparc_cfg:succ_map(CFG).
uses(I) ->
hipe_sparc:fp_reg_uses(I).
defines(I) ->
hipe_sparc:fp_reg_defines(I).
%% def_use(Instruction) ->
%% hipe_sparc:fp_reg_def_use(Instruction).
%% is_move(Instruction) ->
%% hipe_sparc:is_move(Instruction).
reg_nr(Reg) ->
hipe_sparc:fpreg_nr(Reg).
new_spill_index(SpillIndex)->
SpillIndex + 2.
|
