%% -*- erlang-indent-level: 2 -*-
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2004-2016. 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
%%
%% 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.
%%
%% %CopyrightEnd%
%%
-module(hipe_ppc_specific_fp).
%% for hipe_coalescing_regalloc:
-export([number_of_temporaries/1
,analyze/1
,labels/1
,all_precoloured/0
,bb/2
,liveout/2
,reg_nr/1
,def_use/1
,is_move/1
,is_precoloured/1
,var_range/1
,allocatable/0
,non_alloc/1
,physical_name/1
,reverse_postorder/1
,livein/2
,uses/1
,defines/1
,defines_all_alloc/1
]).
%% for hipe_graph_coloring_regalloc:
-export([is_fixed/1]).
%% for hipe_ls_regalloc:
%%-export([args/1, is_arg/1, is_global, new_spill_index/1]).
%%-export([breadthorder/1, postorder/1]).
%% callbacks for hipe_regalloc_loop
-export([check_and_rewrite/2]).
%% callbacks for hipe_regalloc_prepass
-export([new_reg_nr/0,
update_reg_nr/2,
update_bb/3,
subst_temps/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() ->
hipe_ppc_registers:allocatable_fpr().
all_precoloured() ->
allocatable().
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).
%% PowerPC stuff
def_use(I) ->
{defines(I), uses(I)}.
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).
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.
