%% -*- 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_amd64_specific_sse2).
-export([number_of_temporaries/2]).
% The following exports are used as M:F(...) calls from other modules;
%% e.g. hipe_amd64_ra_ls.
-export([analyze/2,
bb/3,
args/2,
labels/2,
livein/3,
liveout/3,
uses/2,
defines/2,
defines_all_alloc/2,
def_use/2,
is_arg/2, %% used by hipe_ls_regalloc
is_move/2,
is_fixed/2, %% used by hipe_graph_coloring_regalloc
is_global/2,
is_precoloured/2,
reg_nr/2,
non_alloc/2,
allocatable/1,
allocatable/2,
temp0/1,
physical_name/2,
all_precoloured/1,
new_spill_index/2, %% used by hipe_ls_regalloc
var_range/2,
breadthorder/2,
postorder/2,
reverse_postorder/2]).
%% callbacks for hipe_regalloc_loop
-export([check_and_rewrite/3,
check_and_rewrite/4]).
%% callbacks for hipe_regalloc_prepass
-export([new_reg_nr/1,
update_reg_nr/3,
update_bb/4,
subst_temps/3]).
%%----------------------------------------------------------------------------
-include("../flow/cfg.hrl").
%%----------------------------------------------------------------------------
check_and_rewrite(CFG, Coloring, no_context) ->
hipe_amd64_ra_sse2_postconditions:check_and_rewrite(CFG, Coloring).
check_and_rewrite(CFG, Coloring, Strategy, no_context) ->
hipe_amd64_ra_sse2_postconditions:check_and_rewrite(
CFG, Coloring, Strategy).
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, _) ->
hipe_amd64_registers:sse2_temp0() =:= Reg.
is_fixed(_Reg, _) ->
false.
is_arg(_Reg, _) ->
false.
-spec args(#cfg{}, no_context) -> [].
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(Ctx) ->
allocatable('normal', Ctx).
allocatable('normal', _) ->
hipe_amd64_registers:allocatable_sse2();
allocatable('linearscan', _) ->
hipe_amd64_registers:allocatable_sse2() --
[hipe_amd64_registers:sse2_temp0()].
temp0(_) ->
hipe_amd64_registers:sse2_temp0().
all_precoloured(Ctx) ->
allocatable(Ctx).
is_precoloured(Reg, Ctx) ->
lists:member(Reg,all_precoloured(Ctx)).
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{}, no_context) -> 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).
update_bb(CFG,L,BB,_) ->
hipe_x86_cfg:bb_add(CFG,L,BB).
%% 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'].
defines_all_alloc(I, _) -> hipe_amd64_defuse:insn_defs_all(I).
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).
new_reg_nr(_) ->
hipe_gensym:get_next_var(x86).
update_reg_nr(Nr, _Temp, _) ->
hipe_x86:mk_temp(Nr, 'double').
subst_temps(SubstFun, Instr, _) ->
hipe_amd64_subst:insn_temps(
fun(Op) ->
case hipe_x86:temp_is_allocatable(Op)
andalso hipe_x86:temp_type(Op) =:= 'double'
of
true -> SubstFun(Op);
false -> Op
end
end, Instr).
-spec new_spill_index(non_neg_integer(), no_context) -> pos_integer().
new_spill_index(SpillIndex, _) when is_integer(SpillIndex) ->
SpillIndex + 1.
