aboutsummaryrefslogtreecommitdiffstats
path: root/lib/hipe/rtl/hipe_rtl_lcm.erl
diff options
context:
space:
mode:
Diffstat (limited to 'lib/hipe/rtl/hipe_rtl_lcm.erl')
-rw-r--r--lib/hipe/rtl/hipe_rtl_lcm.erl104
1 files changed, 53 insertions, 51 deletions
diff --git a/lib/hipe/rtl/hipe_rtl_lcm.erl b/lib/hipe/rtl/hipe_rtl_lcm.erl
index 262aedb409..71bd06c0df 100644
--- a/lib/hipe/rtl/hipe_rtl_lcm.erl
+++ b/lib/hipe/rtl/hipe_rtl_lcm.erl
@@ -2,18 +2,19 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2004-2011. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2016. All Rights Reserved.
%%
-%% The contents of this file are subject to the Erlang Public License,
-%% Version 1.1, (the "License"); you may not use this file except in
-%% compliance with the License. You should have received a copy of the
-%% Erlang Public License along with this software. If not, it can be
-%% retrieved online at http://www.erlang.org/.
-%%
-%% Software distributed under the License is distributed on an "AS IS"
-%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
-%% the License for the specific language governing rights and limitations
-%% under the License.
+%% 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%
%%
@@ -62,10 +63,10 @@ rtl_lcm(CFG, Options) ->
pp_debug("-------------------------------------------------~n",[]),
%% pp_debug( "~w~n", [MFA]),
-
+
%% A check if we should pretty print the result.
case proplists:get_bool(pp_rtl_lcm, Options) of
- true->
+ true ->
pp_debug("-------------------------------------------------~n",[]),
%% pp_debug("AllExpr: ~w~n", [AllExpr]),
pp_debug("AllExpr:~n", []),
@@ -75,21 +76,21 @@ rtl_lcm(CFG, Options) ->
_ ->
ok
end,
-
+
pp_debug("-------------------------------------------------~n",[]),
- ?option_time({CFG1, MoveSet} = perform_lcm(CFG, NodeInfo, EdgeInfo, ExprMap,
- IdMap, AllExpr, mk_edge_bb_map(),
+ {CFG1, MoveSet} = ?option_time(perform_lcm(CFG, NodeInfo, EdgeInfo, ExprMap,
+ IdMap, AllExpr, mk_edge_bb_map(),
?SETS:new(), Labels),
- "RTL LCM perform_lcm", Options),
+ "RTL LCM perform_lcm", Options),
%% Scan through list of moved expressions and replace their
%% assignments with the new temporary created for that expression
MoveList = ?SETS:to_list(MoveSet),
- ?option_time(CFG2 = moved_expr_replace_assignments(CFG1, ExprMap, IdMap,
+ CFG2 = ?option_time(moved_expr_replace_assignments(CFG1, ExprMap, IdMap,
MoveList),
- "RTL LCM moved_expr_replace_assignments", Options),
+ "RTL LCM moved_expr_replace_assignments", Options),
pp_debug("-------------------------------------------------~n~n",[]),
-
+
CFG2.
%%=============================================================================
@@ -465,10 +466,10 @@ expr_clear_dst(I) ->
%% easy access later.
lcm_precalc(CFG, Options) ->
%% Calculate use map and expression map.
- ?option_time({ExprMap, IdMap} = mk_expr_map(CFG),
- "RTL LCM mk_expr_map", Options),
- ?option_time(UseMap = mk_use_map(CFG, ExprMap),
- "RTL LCM mk_use_map", Options),
+ {ExprMap, IdMap} = ?option_time(mk_expr_map(CFG),
+ "RTL LCM mk_expr_map", Options),
+ UseMap = ?option_time(mk_use_map(CFG, ExprMap),
+ "RTL LCM mk_use_map", Options),
%% Labels = hipe_rtl_cfg:reverse_postorder(CFG),
Labels = hipe_rtl_cfg:labels(CFG),
%% StartLabel = hipe_rtl_cfg:start_label(CFG),
@@ -476,28 +477,28 @@ lcm_precalc(CFG, Options) ->
AllExpr = ?SETS:from_list(gb_trees:keys(IdMap)),
%% Calculate the data sets.
- ?option_time(NodeInfo0 = mk_node_info(Labels), "RTL LCM mk_node_info",
- Options),
+ NodeInfo0 = ?option_time(mk_node_info(Labels),
+ "RTL LCM mk_node_info", Options),
%% ?option_time(EdgeInfo0 = mk_edge_info(), "RTL LCM mk_edge_info",
%% Options),
EdgeInfo0 = mk_edge_info(),
- ?option_time(NodeInfo1 = calc_up_exp(CFG, ExprMap, NodeInfo0, Labels),
- "RTL LCM calc_up_exp", Options),
- ?option_time(NodeInfo2 = calc_down_exp(CFG, ExprMap, NodeInfo1, Labels),
- "RTL LCM calc_down_exp", Options),
- ?option_time(NodeInfo3 = calc_killed_expr(CFG, NodeInfo2, UseMap, AllExpr,
+ NodeInfo1 = ?option_time(calc_up_exp(CFG, ExprMap, NodeInfo0, Labels),
+ "RTL LCM calc_up_exp", Options),
+ NodeInfo2 = ?option_time(calc_down_exp(CFG, ExprMap, NodeInfo1, Labels),
+ "RTL LCM calc_down_exp", Options),
+ NodeInfo3 = ?option_time(calc_killed_expr(CFG, NodeInfo2, UseMap, AllExpr,
IdMap, Labels),
- "RTL LCM calc_killed_exp", Options),
- ?option_time(NodeInfo4 = calc_avail(CFG, NodeInfo3),
- "RTL LCM calc_avail", Options),
- ?option_time(NodeInfo5 = calc_antic(CFG, NodeInfo4, AllExpr),
- "RTL LCM calc_antic", Options),
- ?option_time(EdgeInfo1 = calc_earliest(CFG, NodeInfo5, EdgeInfo0, Labels),
- "RTL LCM calc_earliest", Options),
- ?option_time({NodeInfo6, EdgeInfo2} = calc_later(CFG, NodeInfo5, EdgeInfo1),
- "RTL LCM calc_later", Options),
- ?option_time(NodeInfo7 = calc_delete(CFG, NodeInfo6, Labels),
- "RTL LCM calc_delete", Options),
+ "RTL LCM calc_killed_exp", Options),
+ NodeInfo4 = ?option_time(calc_avail(CFG, NodeInfo3),
+ "RTL LCM calc_avail", Options),
+ NodeInfo5 = ?option_time(calc_antic(CFG, NodeInfo4, AllExpr),
+ "RTL LCM calc_antic", Options),
+ EdgeInfo1 = ?option_time(calc_earliest(CFG, NodeInfo5, EdgeInfo0, Labels),
+ "RTL LCM calc_earliest", Options),
+ {NodeInfo6, EdgeInfo2} = ?option_time(calc_later(CFG, NodeInfo5, EdgeInfo1),
+ "RTL LCM calc_later", Options),
+ NodeInfo7 = ?option_time(calc_delete(CFG, NodeInfo6, Labels),
+ "RTL LCM calc_delete", Options),
{NodeInfo7, EdgeInfo2, AllExpr, ExprMap, IdMap, Labels}.
%%%%%%%%%%%%%%%%%%% AVAILABLE IN/OUT FLOW ANALYSIS %%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -940,15 +941,16 @@ calc_insert_edge(NodeInfo, EdgeInfo, From, To) ->
calc_delete(_, NodeInfo, []) ->
NodeInfo;
calc_delete(CFG, NodeInfo, [Label|Labels]) ->
- case Label =:= hipe_rtl_cfg:start_label(CFG) of
- true ->
- NewNodeInfo = set_delete(NodeInfo, Label, ?SETS:new());
- false ->
- UpExp = up_exp(NodeInfo, Label),
- LaterIn = later_in(NodeInfo, Label),
- Delete = ?SETS:subtract(UpExp, LaterIn),
- NewNodeInfo = set_delete(NodeInfo, Label, Delete)
- end,
+ NewNodeInfo =
+ case Label =:= hipe_rtl_cfg:start_label(CFG) of
+ true ->
+ set_delete(NodeInfo, Label, ?SETS:new());
+ false ->
+ UpExp = up_exp(NodeInfo, Label),
+ LaterIn = later_in(NodeInfo, Label),
+ Delete = ?SETS:subtract(UpExp, LaterIn),
+ set_delete(NodeInfo, Label, Delete)
+ end,
calc_delete(CFG, NewNodeInfo, Labels).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 07:49:55 +0000