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%%----------------------------------------------------------------------
%% File : hipe_sparc_specific.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).
-author('d95ina@it.uu.se').
-export([number_of_temporaries/1]).
%% The following exports are (also) 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,
def_use/1,
is_arg/1, %% used by hipe_ls_regalloc
is_move/1,
is_fixed/1, %% used by hipe_graph_coloring_regalloc
is_global/1,
is_precoloured/1,
reg_nr/1,
non_alloc/1,
allocatable/0,
physical_name/1,
all_precoloured/0,
new_spill_index/1, %% used by hipe_ls_regalloc
var_range/1,
breadthorder/1,
preorder/1,
postorder/1,
inorder/1,
reverse_inorder/1,
predictionorder/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() ->
hipe_sparc_registers:allocatable().
all_precoloured() ->
hipe_sparc_registers:all_precoloured().
is_precoloured(Reg) ->
hipe_sparc_registers:is_precoloured(Reg).
physical_name(Reg) ->
hipe_sparc_registers:physical_name(Reg).
is_global(R) ->
not lists:member(R,hipe_sparc_registers:allocatable()).
is_fixed(R) ->
hipe_sparc_registers:is_fixed(R).
all_args() ->
[hipe_sparc_registers:arg(0),
hipe_sparc_registers:arg(1),
hipe_sparc_registers:arg(2),
hipe_sparc_registers:arg(3),
hipe_sparc_registers:arg(4),
hipe_sparc_registers:arg(5)].
is_arg(R) ->
lists:member(R,all_args()).
%% 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) ->
hipe_sparc_cfg:extra(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).
inorder(CFG) ->
hipe_sparc_cfg:inorder(CFG).
reverse_inorder(CFG) ->
hipe_sparc_cfg:reverse_inorder(CFG).
preorder(CFG) ->
hipe_sparc_cfg:preorder(CFG).
var_range(_CFG) ->
hipe_gensym:var_range(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:keep_registers(hipe_sparc:uses(I)).
defines(I) ->
hipe_sparc:keep_registers(hipe_sparc:defines(I)).
def_use(Instruction) ->
{D,U} = hipe_sparc:def_use(Instruction),
{hipe_sparc:keep_registers(D),hipe_sparc:keep_registers(U)}.
is_move(Instruction) ->
hipe_sparc:is_move(Instruction).
reg_nr(Reg) ->
hipe_sparc:reg_nr(Reg).
new_spill_index(SpillIndex) when is_integer(SpillIndex) ->
SpillIndex + 1.
|
