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-rw-r--r--lib/hipe/regalloc/hipe_ig.erl109
1 files changed, 72 insertions, 37 deletions
diff --git a/lib/hipe/regalloc/hipe_ig.erl b/lib/hipe/regalloc/hipe_ig.erl
index 8fd5d0df1f..81eee2e03c 100644
--- a/lib/hipe/regalloc/hipe_ig.erl
+++ b/lib/hipe/regalloc/hipe_ig.erl
@@ -28,7 +28,7 @@
-module(hipe_ig).
--export([build/2,
+-export([build/4,
nodes_are_adjacent/3,
node_spill_cost/2,
node_adj_list/2,
@@ -38,8 +38,8 @@
spill_costs/1,
adj_list/1,
%% adj_set/1,
- add_edge/4,
- remove_edge/4,
+ add_edge/5,
+ remove_edge/5,
%% set_adj_set/2,
%% set_adj_list/2,
%% set_ig_moves/2,
@@ -64,6 +64,9 @@
-include("../flow/cfg.hrl").
-include("hipe_spillcost.hrl").
+-type target_context() :: any().
+-type target() :: {TargetMod :: module(), TargetContext :: target_context()}.
+
%%----------------------------------------------------------------------
-record(igraph, {adj_set, adj_list, ig_moves, degree,
@@ -78,11 +81,11 @@
%% degree, and testing for trivial colourability (degree < K).
%%----------------------------------------------------------------------
-degree_new(No_temporaries, Target) ->
+degree_new(No_temporaries, {TargetMod, TargetCtx}) ->
Degree = hipe_bifs:array(No_temporaries, 0),
- K = length(Target:allocatable()),
+ K = length(TargetMod:allocatable(TargetCtx)),
Inf = K + No_temporaries,
- precoloured_to_inf_degree(Target:all_precoloured(), Inf, Degree).
+ precoloured_to_inf_degree(TargetMod:all_precoloured(TargetCtx), Inf, Degree).
precoloured_to_inf_degree([], _Inf, Degree) -> Degree;
precoloured_to_inf_degree([P|Ps], Inf, Degree) ->
@@ -344,7 +347,7 @@ set_spill_costs(Spill_costs, IG) -> IG#igraph{spill_costs = Spill_costs}.
%% A new interference record
%%----------------------------------------------------------------------
--spec initial_ig(non_neg_integer(), atom()) -> #igraph{}.
+-spec initial_ig(non_neg_integer(), target()) -> #igraph{}.
initial_ig(NumTemps, Target) ->
#igraph{adj_set = adjset_new(NumTemps),
@@ -361,20 +364,21 @@ initial_ig(NumTemps, Target) ->
%% Description: Constructs an interference graph for the specifyed CFG.
%%
%% Parameters:
-%% CFG -- A Control Flow Graph
-%% Target -- The module that contains the target-specific functions
+%% CFG -- A Control Flow Graph
+%% TargetMod -- The module that contains the target-specific functions
+%% TargetCtx -- Context data to pass to TargetMod
%%
%% Returns:
%% An interference graph for the given CFG.
%%----------------------------------------------------------------------
--spec build(#cfg{}, atom()) -> #igraph{}.
+-spec build(#cfg{}, Liveness::_, module(), target_context()) -> #igraph{}.
-build(CFG, Target) ->
- BBs_in_out_liveness = Target:analyze(CFG),
- Labels = Target:labels(CFG),
+build(CFG, BBs_in_out_liveness, TargetMod, TargetCtx) ->
+ Target = {TargetMod, TargetCtx},
+ Labels = TargetMod:labels(CFG, TargetCtx),
%% How many temporaries exist?
- NumTemps = Target:number_of_temporaries(CFG),
+ NumTemps = TargetMod:number_of_temporaries(CFG, TargetCtx),
IG0 = initial_ig(NumTemps, Target),
%%?debug_msg("initial adjset: ~p\n",[element(2, IG0)]),
%%?debug_msg("initial adjset array: ~.16b\n",[element(3, element(2, IG0))]),
@@ -395,7 +399,7 @@ build(CFG, Target) ->
%% CFG -- The Control Flow Graph that we constructs
%% the interference graph from.
%% Target -- The module containing the target-specific
-%% functions
+%% functions, along with its context data
%%
%% Returns:
%% An interference graph for the given CFG.
@@ -404,13 +408,11 @@ build(CFG, Target) ->
analyze_bbs([], _, IG, _, _) -> IG;
analyze_bbs([L|Ls], BBs_in_out_liveness, IG, CFG, Target) ->
% Get basic block associated with label L
- BB = Target:bb(CFG, L),
+ BB = bb(CFG, L, Target),
% Get basic block code
BB_code = hipe_bb:code(BB),
- % Temporaries that are live out from this basic block
- BB_liveout = Target:liveout(BBs_in_out_liveness, L),
- % Only temporary numbers
- BB_liveout_numbers = reg_numbers(BB_liveout, Target),
+ % Temporaries that are live out from this basic block, only numbers
+ BB_liveout_numbers = liveout(BBs_in_out_liveness, L, Target),
% {Liveness, New Interference Graph}
{_, New_ig, Ref} = analyze_bb_instructions(BB_code,
ordsets:from_list(BB_liveout_numbers),
@@ -433,7 +435,8 @@ analyze_bbs([L|Ls], BBs_in_out_liveness, IG, CFG, Target) ->
%% Live -- All temporaries that are live at the time.
%% Live is a set of temporary "numbers only".
%% IG -- The interference graph in it's current state
-%% Target -- The mopdule containing the target-specific functions
+%% Target -- The mopdule containing the target-specific functions,
+%% along with its context data.
%%
%% Returns:
%% Live -- Temporaries that are live at entery of basic block
@@ -449,7 +452,7 @@ analyze_bb_instructions([Instruction|Instructions], Live, IG, Target) ->
{Live0, IG0, Ref} = analyze_bb_instructions(Instructions, Live,
IG, Target),
%% Check for temporaries that are defined and used in instruction
- {Def, Use} = Target:def_use(Instruction),
+ {Def, Use} = def_use(Instruction, Target),
%% Convert to register numbers
Def_numbers = ordsets:from_list(reg_numbers(Def, Target)),
Use_numbers = ordsets:from_list(reg_numbers(Use, Target)),
@@ -501,14 +504,15 @@ analyze_bb_instructions([Instruction|Instructions], Live, IG, Target) ->
%% Def_numbers -- Temporaries that are defined at this instruction
%% Use_numbers -- Temporaries that are used at this instruction
%% IG -- The interference graph in its current state
-%% Target -- The module containing the target-specific functions
+%% Target -- The module containing the target-specific functions, along
+%% with its context data
%% Returns:
%% Live -- An updated live set
%% IG -- An updated interference graph
%%----------------------------------------------------------------------
analyze_move(Instruction, Live, Def_numbers, Use_numbers, IG, Target) ->
- case Target:is_move(Instruction) of
+ case is_move(Instruction,Target) of
true ->
case {Def_numbers, Use_numbers} of
{[Dst], [Src]} ->
@@ -554,8 +558,9 @@ interfere([Define|Defines], Living, IG, Target) ->
%% Live -- Current live set
%% Lives -- Rest of living temporaries.
%% IG -- An interference graph
-%% Target -- The module containing the target-specific functions
-%% Returns:
+%% Target -- The module containing the target-specific functions, along
+%% with its context data.
+%% Returns:
%% An updated interference graph
%%----------------------------------------------------------------------
@@ -623,11 +628,15 @@ get_moves(IG) ->
%% Parameters:
%% U -- A temporary number
%% V -- A temporary number
-%% Target -- The module containing the target-specific functions
+%% TargetMod -- The module containing the target-specific functions.
+%% TargetCtx -- Context data to pass to TargetMod
%% Returns:
%% An updated interference graph.
%%----------------------------------------------------------------------
+add_edge(U, V, IG, TargetMod, TargetCtx) ->
+ add_edge(U, V, IG, {TargetMod, TargetCtx}).
+
add_edge(U, U, IG, _) -> IG;
add_edge(U, V, IG, Target) ->
case nodes_are_adjacent(U, V, IG) of
@@ -652,11 +661,15 @@ add_edge(U, V, IG, Target) ->
%% Parameters:
%% U -- A temporary number
%% V -- A temporary number
-%% Target -- The module containing the target-specific functions
+%% TargetMod -- The module containing the target-specific functions.
+%% TargetCtx -- Context data for TargetMod.
%% Returns:
%% An updated interference graph.
%%----------------------------------------------------------------------
+remove_edge(U, V, IG, TargetMod, TargetCtx) ->
+ remove_edge(U, V, IG, {TargetMod, TargetCtx}).
+
remove_edge(U, U, IG, _) -> IG;
remove_edge(U, V, IG, Target) ->
case nodes_are_adjacent(U, V, IG) of
@@ -683,8 +696,8 @@ remove_edge(U, V, IG, Target) ->
%% precoloured.
%% Adj_list -- An adj_list
%% Degree -- The degree that all nodes currently have
-%% Target -- The module containing the target-specific
-%% functions
+%% Target -- The module containing the target-specific
+%% functions, along with its context data.
%%
%% Returns:
%% Adj_list -- An updated adj_list data structure
@@ -692,7 +705,7 @@ remove_edge(U, V, IG, Target) ->
%%----------------------------------------------------------------------
remove_if_uncolored(Temp, InterfereTemp, Adj_list, Degree, Target) ->
- case Target:is_precoloured(Temp) of
+ case is_precoloured(Temp,Target) of
false ->
New_adj_list = hipe_adj_list:remove_edge(Temp, InterfereTemp, Adj_list),
degree_dec(Temp, Degree),
@@ -714,8 +727,8 @@ remove_if_uncolored(Temp, InterfereTemp, Adj_list, Degree, Target) ->
%% precoloured.
%% Adj_list -- An adj_list
%% Degree -- The degree that all nodes currently have
-%% Target -- The module containing the target-specific
-%% functions
+%% Target -- The module containing the target-specific
+%% functions, along with its context data.
%%
%% Returns:
%% Adj_list -- An updated adj_list data structure
@@ -723,7 +736,7 @@ remove_if_uncolored(Temp, InterfereTemp, Adj_list, Degree, Target) ->
%%----------------------------------------------------------------------
interfere_if_uncolored(Temp, InterfereTemp, Adj_list, Degree, Target) ->
- case Target:is_precoloured(Temp) of
+ case is_precoloured(Temp, Target) of
false ->
New_adj_list = hipe_adj_list:add_edge(Temp, InterfereTemp, Adj_list),
degree_inc(Temp, Degree),
@@ -740,13 +753,14 @@ interfere_if_uncolored(Temp, InterfereTemp, Adj_list, Degree, Target) ->
%%
%% Parameters:
%% TRs -- A list of temporary registers
-%% Target -- The module containing the target-specific functions
+%% Target -- The module containing the target-specific functions, along with
+%% its context data.
%% Returns:
%% A list of register numbers.
%%----------------------------------------------------------------------
-reg_numbers(Regs, Target) ->
- [Target:reg_nr(X) || X <- Regs].
+reg_numbers(Regs, {TgtMod, TgtCtx}) ->
+ [TgtMod:reg_nr(X,TgtCtx) || X <- Regs].
%%---------------------------------------------------------------------
%% Print functions - only used for debugging
@@ -775,3 +789,24 @@ dec_node_degree(Node, IG) ->
is_trivially_colourable(Node, K, IG) ->
degree_is_trivially_colourable(Node, K, degree(IG)).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%
+%% Interface to external functions.
+%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+bb(CFG, L, {TgtMod,TgtCtx}) ->
+ TgtMod:bb(CFG,L,TgtCtx).
+
+def_use(Instruction, {TgtMod,TgtCtx}) ->
+ TgtMod:def_use(Instruction, TgtCtx).
+
+is_move(Instruction, {TgtMod,TgtCtx}) ->
+ TgtMod:is_move(Instruction, TgtCtx).
+
+is_precoloured(R, {TgtMod,TgtCtx}) ->
+ TgtMod:is_precoloured(R,TgtCtx).
+
+liveout(Liveness,L, Target={TgtMod,TgtCtx}) ->
+ reg_numbers(TgtMod:liveout(Liveness,L,TgtCtx), Target).
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 05:44:45 +0000