1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
%% -*- 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_ppc_specific).
%% for hipe_coalescing_regalloc:
-export([number_of_temporaries/2
,analyze/2
,labels/2
,all_precoloured/1
,bb/3
,liveout/3
,reg_nr/2
,def_use/2
,is_move/2
,is_precoloured/2
,var_range/2
,allocatable/1
,non_alloc/2
,physical_name/2
,reverse_postorder/2
,livein/3
,uses/2
,defines/2
,defines_all_alloc/2
]).
%% for hipe_graph_coloring_regalloc:
-export([is_fixed/2]).
%% for hipe_ls_regalloc:
-export([args/2, is_arg/2, is_global/2, new_spill_index/2]).
-export([breadthorder/2, postorder/2]).
%% callbacks for hipe_regalloc_loop
-export([check_and_rewrite/3]).
%% callbacks for hipe_regalloc_prepass, hipe_range_split
-export([mk_move/3,
mk_goto/2,
redirect_jmp/4,
new_label/1,
new_reg_nr/1,
update_reg_nr/3,
update_bb/4,
subst_temps/3]).
check_and_rewrite(CFG, Coloring, _) ->
hipe_ppc_ra_postconditions:check_and_rewrite(CFG, Coloring, 'normal').
reverse_postorder(CFG, _) ->
hipe_ppc_cfg:reverse_postorder(CFG).
non_alloc(CFG, no_context) ->
non_alloc_1(hipe_ppc_registers:nr_args(), hipe_ppc_cfg:params(CFG)).
%% same as hipe_ppc_frame:fix_formals/2
non_alloc_1(0, Rest) -> Rest;
non_alloc_1(N, [_|Rest]) -> non_alloc_1(N-1, Rest);
non_alloc_1(_, []) -> [].
%% Liveness stuff
analyze(CFG, _) ->
hipe_ppc_liveness_gpr:analyse(CFG).
livein(Liveness,L,_) ->
[X || X <- hipe_ppc_liveness_gpr:livein(Liveness,L),
hipe_ppc:temp_is_allocatable(X)].
liveout(BB_in_out_liveness,Label,_) ->
[X || X <- hipe_ppc_liveness_gpr:liveout(BB_in_out_liveness,Label),
hipe_ppc:temp_is_allocatable(X)].
%% Registers stuff
allocatable(no_context) ->
hipe_ppc_registers:allocatable_gpr().
all_precoloured(no_context) ->
hipe_ppc_registers:all_precoloured().
is_precoloured(Reg, _) ->
hipe_ppc_registers:is_precoloured_gpr(Reg).
is_fixed(R, _) ->
hipe_ppc_registers:is_fixed(R).
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(Instruction, Ctx) ->
{defines(Instruction, Ctx), uses(Instruction, Ctx)}.
uses(I, _) ->
[X || X <- hipe_ppc_defuse:insn_use_gpr(I),
hipe_ppc:temp_is_allocatable(X)].
defines(I, _) ->
[X || X <- hipe_ppc_defuse:insn_def_gpr(I),
hipe_ppc:temp_is_allocatable(X)].
defines_all_alloc(I, _) ->
hipe_ppc_defuse:insn_defs_all_gpr(I).
is_move(Instruction, _) ->
case hipe_ppc:is_pseudo_move(Instruction) of
true ->
Dst = hipe_ppc:pseudo_move_dst(Instruction),
case hipe_ppc:temp_is_allocatable(Dst) of
false -> false;
_ ->
Src = hipe_ppc:pseudo_move_src(Instruction),
hipe_ppc:temp_is_allocatable(Src)
end;
false -> false
end.
reg_nr(Reg, _) ->
hipe_ppc:temp_reg(Reg).
mk_move(Src, Dst, _) ->
hipe_ppc:mk_pseudo_move(Dst, Src).
mk_goto(Label, _) ->
hipe_ppc:mk_b_label(Label).
redirect_jmp(Jmp, ToOld, ToNew, _) when is_integer(ToOld), is_integer(ToNew) ->
hipe_ppc_cfg:redirect_jmp(Jmp, ToOld, ToNew).
new_label(_) ->
hipe_gensym:get_next_label(ppc).
new_reg_nr(_) ->
hipe_gensym:get_next_var(ppc).
update_reg_nr(Nr, Temp, _) ->
hipe_ppc:mk_temp(Nr, hipe_ppc:temp_type(Temp)).
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).
%%% Linear Scan stuff
new_spill_index(SpillIndex, _) when is_integer(SpillIndex) ->
SpillIndex+1.
breadthorder(CFG, _) ->
hipe_ppc_cfg:breadthorder(CFG).
postorder(CFG, _) ->
hipe_ppc_cfg:postorder(CFG).
is_global(R, _) ->
R =:= hipe_ppc_registers:temp1() orelse
R =:= hipe_ppc_registers:temp2() orelse
R =:= hipe_ppc_registers:temp3() orelse
hipe_ppc_registers:is_fixed(R).
is_arg(R, _) ->
hipe_ppc_registers:is_arg(R).
args(CFG, _) ->
hipe_ppc_registers:args(hipe_ppc_cfg:arity(CFG)).
|
