%% -*- 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.
-ifdef(HIPE_AMD64).
-define(HIPE_X86_SPECIFIC_X87, hipe_amd64_specific_x87).
-define(HIPE_X86_LIVENESS, hipe_amd64_liveness).
-define(HIPE_X86_REGISTERS, hipe_amd64_registers).
-define(HIPE_X86_DEFUSE, hipe_amd64_defuse).
-else.
-define(HIPE_X86_SPECIFIC_X87, hipe_x86_specific_x87).
-define(HIPE_X86_LIVENESS, hipe_x86_liveness).
-define(HIPE_X86_REGISTERS, hipe_x86_registers).
-define(HIPE_X86_DEFUSE, hipe_x86_defuse).
-endif.
-module(?HIPE_X86_SPECIFIC_X87).
-export([allocatable/2,
is_precoloured/2,
%% var_range/2,
%% def_use/2,
%% is_fixed/2,
is_arg/2,
%% non_alloc/2,
new_spill_index/2,
number_of_temporaries/2
]).
%% The following exports are used as M:F(...) calls from other modules;
%% e.g. hipe_x86_ra_ls.
-export([analyze/2,
bb/3,
args/2,
labels/2,
livein/3,
liveout/3,
uses/2,
defines/2,
defines_all_alloc/2,
is_global/2,
reg_nr/2,
physical_name/2,
breadthorder/2,
postorder/2,
reverse_postorder/2]).
%% callbacks for hipe_x86_ra_ls
-export([check_and_rewrite/4]).
%% Rewrite happens in hipe_x86_ra_finalise:finalise/4
check_and_rewrite(CFG, _Coloring, 'linearscan', _) ->
{CFG, false}.
breadthorder(CFG, _) ->
hipe_x86_cfg:breadthorder(CFG).
postorder(CFG, _) ->
hipe_x86_cfg:postorder(CFG).
reverse_postorder(CFG, _) ->
hipe_x86_cfg:reverse_postorder(CFG).
is_global(_, _) ->
false.
-ifdef(notdef).
is_fixed(_, _) ->
false.
-endif.
is_arg(_, _) ->
false.
args(_, _) ->
[].
-ifdef(notdef).
non_alloc(_, _) ->
[].
-endif.
%% Liveness stuff
analyze(CFG, _) ->
?HIPE_X86_LIVENESS:analyze(CFG).
livein(Liveness,L,_) ->
[X || X <- ?HIPE_X86_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_X86_LIVENESS:liveout(BB_in_out_liveness,Label),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =:= 'double'].
%% Registers stuff
allocatable('linearscan', _) ->
?HIPE_X86_REGISTERS:allocatable_x87().
is_precoloured(Reg, _) ->
?HIPE_X86_REGISTERS:is_precoloured_x87(Reg).
physical_name(Reg, _) ->
Reg.
%% CFG stuff
labels(CFG, _) ->
hipe_x86_cfg:labels(CFG).
-ifdef(notdef).
var_range(_CFG, _) ->
{Min,Max} = hipe_gensym:var_range(x86),
%% io:format("Var_range: ~w\n",[{Min,Max}]),
{Min,Max}.
-endif.
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).
%% X86 stuff
-ifdef(notdef).
def_use(Instruction, _) ->
{[X || X <- ?HIPE_X86_DEFUSE:insn_def(Instruction),
hipe_x86:temp_is_allocatable(X),
temp_is_double(X)],
[X || X <- ?HIPE_X86_DEFUSE:insn_use(Instruction),
hipe_x86:temp_is_allocatable(X),
temp_is_double(X)]
}.
-endif.
uses(I, _) ->
[X || X <- ?HIPE_X86_DEFUSE:insn_use(I),
hipe_x86:temp_is_allocatable(X),
temp_is_double(X)].
defines(I, _) ->
[X || X <- ?HIPE_X86_DEFUSE:insn_def(I),
hipe_x86:temp_is_allocatable(X),
temp_is_double(X)].
defines_all_alloc(I, _) -> hipe_amd64_defuse:insn_defs_all(I).
temp_is_double(Temp) ->
hipe_x86:temp_type(Temp) =:= 'double'.
reg_nr(Reg, _) ->
hipe_x86:temp_reg(Reg).
new_spill_index(SpillIndex, _) ->
SpillIndex+1.
