%% -*- erlang-indent-level: 2 -*-
%%
%% 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
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% 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.
-module(hipe_ppc_specific_fp).
%% for hipe_coalescing_regalloc:
-export([number_of_temporaries/2
,analyze/2
,labels/2
,all_precoloured/1
,bb/3
,liveout/3
,reg_nr/2
,def_use/2
,is_move/2
,is_precoloured/2
,var_range/2
,allocatable/1
,non_alloc/2
,physical_name/2
,reverse_postorder/2
,livein/3
,uses/2
,defines/2
,defines_all_alloc/2
]).
%% for hipe_graph_coloring_regalloc:
-export([is_fixed/2]).
%% for hipe_ls_regalloc:
%%-export([args/2, is_arg/2, is_global, new_spill_index/2]).
%%-export([breadthorder/2, postorder/2]).
%% callbacks for hipe_regalloc_loop
-export([check_and_rewrite/3]).
%% callbacks for hipe_regalloc_prepass, hipe_range_split
-export([mk_move/3,
mk_goto/2,
redirect_jmp/4,
new_label/1,
new_reg_nr/1,
update_reg_nr/3,
update_bb/4,
subst_temps/3]).
%% callbacks for hipe_bb_weights
-export([branch_preds/2]).
check_and_rewrite(CFG, Coloring, _) ->
hipe_ppc_ra_postconditions_fp:check_and_rewrite(CFG, Coloring).
reverse_postorder(CFG, _) ->
hipe_ppc_cfg:reverse_postorder(CFG).
non_alloc(_CFG, _) ->
[].
%% Liveness stuff
analyze(CFG, _) ->
hipe_ppc_liveness_fpr:analyse(CFG).
livein(Liveness, L, _) ->
hipe_ppc_liveness_fpr:livein(Liveness, L).
liveout(BB_in_out_liveness, Label, _) ->
hipe_ppc_liveness_fpr:liveout(BB_in_out_liveness, Label).
%% Registers stuff
allocatable(no_context) ->
hipe_ppc_registers:allocatable_fpr().
all_precoloured(Ctx) ->
allocatable(Ctx).
is_precoloured(Reg, _) ->
hipe_ppc_registers:is_precoloured_fpr(Reg).
is_fixed(_Reg, _) ->
false.
physical_name(Reg, _) ->
Reg.
%% CFG stuff
labels(CFG, _) ->
hipe_ppc_cfg:labels(CFG).
var_range(_CFG, _) ->
hipe_gensym:var_range(ppc).
number_of_temporaries(_CFG, _) ->
Highest_temporary = hipe_gensym:get_var(ppc),
%% Since we can have temps from 0 to Max adjust by +1.
Highest_temporary + 1.
bb(CFG, L, _) ->
hipe_ppc_cfg:bb(CFG, L).
update_bb(CFG,L,BB,_) ->
hipe_ppc_cfg:bb_add(CFG,L,BB).
branch_preds(Instr,_) ->
hipe_ppc_cfg:branch_preds(Instr).
%% PowerPC stuff
def_use(I, Ctx) ->
{defines(I, Ctx), uses(I, Ctx)}.
uses(I, _) ->
hipe_ppc_defuse:insn_use_fpr(I).
defines(I, _) ->
hipe_ppc_defuse:insn_def_fpr(I).
defines_all_alloc(I, _) ->
hipe_ppc_defuse:insn_defs_all_fpr(I).
is_move(I, _) ->
hipe_ppc:is_pseudo_fmove(I).
reg_nr(Reg, _) ->
hipe_ppc:temp_reg(Reg).
mk_move(Src, Dst, _) ->
hipe_ppc:mk_pseudo_fmove(Dst, Src).
mk_goto(Label, _) ->
hipe_ppc:mk_b_label(Label).
redirect_jmp(Jmp, ToOld, ToNew, _) when is_integer(ToOld), is_integer(ToNew) ->
hipe_ppc_cfg:redirect_jmp(Jmp, ToOld, ToNew).
new_label(_) ->
hipe_gensym:get_next_label(ppc).
new_reg_nr(_) ->
hipe_gensym:get_next_var(ppc).
update_reg_nr(Nr, _Temp, _) ->
hipe_ppc:mk_temp(Nr, 'double').
subst_temps(SubstFun, Instr, _) ->
hipe_ppc_subst:insn_temps(
fun(Op) ->
case hipe_ppc:temp_is_allocatable(Op)
andalso hipe_ppc:temp_type(Op) =:= 'double'
of
true -> SubstFun(Op);
false -> Op
end
end, Instr).
-ifdef(notdef).
new_spill_index(SpillIndex, _) ->
SpillIndex+1.
breadthorder(CFG, _) ->
hipe_ppc_cfg:breadthorder(CFG).
postorder(CFG, _) ->
hipe_ppc_cfg:postorder(CFG).
is_global(_R, _) ->
false.
is_arg(_R, _) ->
false.
args(_CFG, _) ->
[].
-endif.
