%% -*- 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.
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%% %CopyrightEnd%
%%
-module(hipe_amd64_specific_sse2).
-export([number_of_temporaries/1]).
% The following exports are used as M:F(...) calls from other modules;
%% e.g. hipe_amd64_ra_ls.
-export([analyze/1,
bb/2,
args/1,
labels/1,
livein/2,
liveout/2,
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,
postorder/1,
reverse_postorder/1]).
%% callbacks for hipe_regalloc_loop
-export([defun_to_cfg/1,
check_and_rewrite/2]).
%%----------------------------------------------------------------------------
-include("../flow/cfg.hrl").
%%----------------------------------------------------------------------------
defun_to_cfg(Defun) ->
hipe_x86_cfg:init(Defun).
check_and_rewrite(Defun, Coloring) ->
hipe_amd64_ra_sse2_postconditions:check_and_rewrite(Defun, Coloring).
reverse_postorder(CFG) ->
hipe_x86_cfg:reverse_postorder(CFG).
breadthorder(CFG) ->
hipe_x86_cfg:breadthorder(CFG).
postorder(CFG) ->
hipe_x86_cfg:postorder(CFG).
is_global(_Reg) ->
false.
is_fixed(_Reg) ->
false.
is_arg(_Reg) ->
false.
-spec args(#cfg{}) -> [].
args(_CFG) ->
[].
non_alloc(_) ->
[].
%% Liveness stuff
analyze(CFG) ->
hipe_amd64_liveness:analyze(CFG).
livein(Liveness, L) ->
[X || X <- hipe_amd64_liveness:livein(Liveness, L),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =:= 'double'].
liveout(BB_in_out_liveness, Label) ->
[X || X <- hipe_amd64_liveness:liveout(BB_in_out_liveness, Label),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =:= 'double'].
%% Registers stuff
allocatable() ->
hipe_amd64_registers:allocatable_sse2().
all_precoloured() ->
allocatable().
is_precoloured(Reg) ->
lists:member(Reg,all_precoloured()).
physical_name(Reg) ->
Reg.
%% CFG stuff
labels(CFG) ->
hipe_x86_cfg:labels(CFG).
var_range(_CFG) ->
hipe_gensym:var_range(x86).
-spec number_of_temporaries(#cfg{}) -> non_neg_integer().
number_of_temporaries(_CFG) ->
Highest_temporary = hipe_gensym:get_var(x86),
%% Since we can have temps from 0 to Max adjust by +1.
Highest_temporary + 1.
bb(CFG, L) ->
hipe_x86_cfg:bb(CFG, L).
%% AMD64 stuff
def_use(Instruction) ->
{[X || X <- hipe_amd64_defuse:insn_def(Instruction),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =:= 'double'],
[X || X <- hipe_amd64_defuse:insn_use(Instruction),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =:= 'double']
}.
uses(I) ->
[X || X <- hipe_amd64_defuse:insn_use(I),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =:= 'double'].
defines(I) ->
[X || X <- hipe_amd64_defuse:insn_def(I),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =:= 'double'].
is_move(Instruction) ->
case hipe_x86:is_fmove(Instruction) of
true ->
Src = hipe_x86:fmove_src(Instruction),
Dst = hipe_x86:fmove_dst(Instruction),
hipe_x86:is_temp(Src) andalso hipe_x86:temp_is_allocatable(Src)
andalso hipe_x86:is_temp(Dst) andalso hipe_x86:temp_is_allocatable(Dst);
false -> false
end.
reg_nr(Reg) ->
hipe_x86:temp_reg(Reg).
-spec new_spill_index(non_neg_integer()) -> pos_integer().
new_spill_index(SpillIndex) when is_integer(SpillIndex) ->
SpillIndex + 1.
