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%% -*- erlang-indent-level: 2 -*-
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2001-2016. 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%
%%
-ifdef(HIPE_AMD64).
-define(HIPE_X86_SPECIFIC, hipe_amd64_specific).
-define(HIPE_X86_RA_POSTCONDITIONS, hipe_amd64_ra_postconditions).
-define(HIPE_X86_REGISTERS, hipe_amd64_registers).
-define(HIPE_X86_LIVENESS, hipe_amd64_liveness).
-define(HIPE_X86_DEFUSE, hipe_amd64_defuse).
-else.
-define(HIPE_X86_SPECIFIC, hipe_x86_specific).
-define(HIPE_X86_RA_POSTCONDITIONS, hipe_x86_ra_postconditions).
-define(HIPE_X86_REGISTERS, hipe_x86_registers).
-define(HIPE_X86_LIVENESS, hipe_x86_liveness).
-define(HIPE_X86_DEFUSE, hipe_x86_defuse).
-endif.
-module(?HIPE_X86_SPECIFIC).
-export([number_of_temporaries/1]).
%% The following exports are used as M:F(...) calls from other modules;
%% e.g. hipe_x86_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]).
defun_to_cfg(Defun) ->
hipe_x86_cfg:init(Defun).
check_and_rewrite(Defun, Coloring) ->
?HIPE_X86_RA_POSTCONDITIONS:check_and_rewrite(Defun, Coloring, 'normal').
reverse_postorder(CFG) ->
hipe_x86_cfg:reverse_postorder(CFG).
breadthorder(CFG) ->
hipe_x86_cfg:breadthorder(CFG).
postorder(CFG) ->
hipe_x86_cfg:postorder(CFG).
%% Globally defined registers for linear scan
is_global(R) ->
?HIPE_X86_REGISTERS:temp1() =:= R orelse
?HIPE_X86_REGISTERS:temp0() =:= R orelse
?HIPE_X86_REGISTERS:is_fixed(R).
is_fixed(R) ->
?HIPE_X86_REGISTERS:is_fixed(R).
is_arg(R) ->
?HIPE_X86_REGISTERS:is_arg(R).
args(CFG) ->
?HIPE_X86_REGISTERS:args(hipe_x86_cfg:arity(CFG)).
non_alloc(CFG) ->
non_alloc(?HIPE_X86_REGISTERS:nr_args(), hipe_x86_cfg:params(CFG)).
%% same as hipe_x86_frame:fix_formals/2
non_alloc(0, Rest) -> Rest;
non_alloc(N, [_|Rest]) -> non_alloc(N-1, Rest);
non_alloc(_, []) -> [].
%% 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_reg(X) =/= ?HIPE_X86_REGISTERS:fcalls(),
hipe_x86:temp_reg(X) =/= ?HIPE_X86_REGISTERS:heap_limit(),
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_reg(X) =/= ?HIPE_X86_REGISTERS:fcalls(),
hipe_x86:temp_reg(X) =/= ?HIPE_X86_REGISTERS:heap_limit(),
hipe_x86:temp_type(X) =/= 'double'].
%% Registers stuff
allocatable() ->
?HIPE_X86_REGISTERS:allocatable().
all_precoloured() ->
?HIPE_X86_REGISTERS:all_precoloured().
is_precoloured(Reg) ->
?HIPE_X86_REGISTERS:is_precoloured(Reg).
physical_name(Reg) ->
Reg.
%% CFG stuff
labels(CFG) ->
hipe_x86_cfg:labels(CFG).
var_range(_CFG) ->
hipe_gensym:var_range(x86).
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
def_use(Instruction) ->
{[X || X <- ?HIPE_X86_DEFUSE:insn_def(Instruction),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =/= 'double'],
[X || X <- ?HIPE_X86_DEFUSE:insn_use(Instruction),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =/= 'double']
}.
uses(I) ->
[X || X <- ?HIPE_X86_DEFUSE:insn_use(I),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =/= 'double'].
defines(I) ->
[X || X <- ?HIPE_X86_DEFUSE:insn_def(I),
hipe_x86:temp_is_allocatable(X),
hipe_x86:temp_type(X) =/= 'double'].
is_move(Instruction) ->
case hipe_x86:is_move(Instruction) of
true ->
Src = hipe_x86:move_src(Instruction),
Dst = hipe_x86:move_dst(Instruction),
case hipe_x86:is_temp(Src) of
true ->
case hipe_x86:temp_is_allocatable(Src) of
true ->
case hipe_x86:is_temp(Dst) of
true ->
hipe_x86:temp_is_allocatable(Dst);
false -> false
end;
false -> false
end;
false -> false
end;
false -> false
end.
reg_nr(Reg) ->
hipe_x86:temp_reg(Reg).
new_spill_index(SpillIndex) when is_integer(SpillIndex) ->
SpillIndex+1.
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