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-rw-r--r--lib/hipe/rtl/hipe_rtl_ssapre.erl460
1 files changed, 226 insertions, 234 deletions
diff --git a/lib/hipe/rtl/hipe_rtl_ssapre.erl b/lib/hipe/rtl/hipe_rtl_ssapre.erl
index e71617e2e9..df1a4b9376 100644
--- a/lib/hipe/rtl/hipe_rtl_ssapre.erl
+++ b/lib/hipe/rtl/hipe_rtl_ssapre.erl
@@ -221,22 +221,21 @@ find_definition_for_computations_in_block(BlockLabel,[Inst|Rest],Cfg,
?pp_debug(" Inserting Xsi: ",[]),pp_xsi(Xsi),
Label = Xsi#xsi.label,
- case BlockLabel =:= Label of
- false ->
- %% Insert the Xsi in the appropriate block
- Code = hipe_bb:code(?CFG:bb(Cfg,Label)),
- {BeforeCode,AfterCode} = split_for_xsi(lists:reverse(Code),[]),
- NewCode = BeforeCode++[XsiLink|AfterCode],
- NewBB = hipe_bb:mk_bb(NewCode),
- NewCfg = ?CFG:bb_add(Cfg,Label,NewBB),
- NewVisited = [NewInst|VisitedInstructions];
- _->
- {BeforeCode,AfterCode} = split_for_xsi(VisitedInstructions,[]),
- TempVisited = BeforeCode++[XsiLink|AfterCode],
- TempVisited2 = lists:reverse(TempVisited),
- NewVisited = [NewInst|TempVisited2],
- NewCfg = Cfg
- end,
+ {NewCfg, NewVisited} =
+ case BlockLabel =:= Label of
+ false ->
+ %% Insert the Xsi in the appropriate block
+ Code = hipe_bb:code(?CFG:bb(Cfg,Label)),
+ {BeforeCode,AfterCode} = split_for_xsi(lists:reverse(Code),[]),
+ NewCode = BeforeCode++[XsiLink|AfterCode],
+ NewBB = hipe_bb:mk_bb(NewCode),
+ {?CFG:bb_add(Cfg,Label,NewBB), [NewInst|VisitedInstructions]};
+ _->
+ {BeforeCode,AfterCode} = split_for_xsi(VisitedInstructions,[]),
+ TempVisited = BeforeCode++[XsiLink|AfterCode],
+ TempVisited2 = lists:reverse(TempVisited),
+ {Cfg, [NewInst|TempVisited2]}
+ end,
find_definition_for_computations_in_block(BlockLabel, Rest, NewCfg,
NewVisited, XsiGraph)
end;
@@ -787,14 +786,15 @@ create_cfggraph([Label|Ls],Cfg,CFGGraph,ToBeFactorizedAcc,MPAcc,LateEdges,XsiGra
Defs = get_defs_in_non_merge_block(Code, []),
?pp_debug("~nAdding a vertex for ~w", [Label]),
Succs = ?CFG:succ(Cfg, Label),
- case Succs of
- [] -> %% Exit point
- ?GRAPH:add_vertex(CFGGraph, Label, #block{type = exit}),
- NewToBeFactorizedAcc = ToBeFactorizedAcc;
- _ -> %% Split point
- ?GRAPH:add_vertex(CFGGraph,Label,#block{type=not_mp,attributes={P,Succs}}),
- NewToBeFactorizedAcc = [Label|ToBeFactorizedAcc]
- end,
+ NewToBeFactorizedAcc =
+ case Succs of
+ [] -> %% Exit point
+ ?GRAPH:add_vertex(CFGGraph, Label, #block{type = exit}),
+ ToBeFactorizedAcc;
+ _ -> %% Split point
+ ?GRAPH:add_vertex(CFGGraph,Label,#block{type=not_mp,attributes={P,Succs}}),
+ [Label|ToBeFactorizedAcc]
+ end,
?pp_debug("~nAdding an edge ~w -> ~w (~w)",[P,Label,Defs]),
case ?GRAPH:add_edge(CFGGraph,P,Label,Defs) of
{error,Reason} ->
@@ -862,56 +862,53 @@ add_edges_for_mp([P|Ps], Label, LateEdges) ->
%% Doesn't do anything so far
add_map_and_uses([], _Key, Maps, Uses) ->
- {Maps,Uses};
+ {Maps, Uses};
add_map_and_uses([XsiOp|Ops], Key, Maps, Uses) ->
- case XsiOp#xsi_op.op of
- #bottom{} ->
- Set = case gb_trees:lookup(XsiOp,Maps) of
- {value, V} ->
- ?SETS:add_element(Key,V);
- none ->
- ?SETS:from_list([Key])
- end,
- NewMaps = gb_trees:enter(XsiOp,Set,Maps),
- NewUses = Uses;
- #temp{} ->
- Set = case gb_trees:lookup(XsiOp,Maps) of
- {value, V} ->
- ?SETS:add_element(Key,V);
- none ->
- ?SETS:from_list([Key])
- end,
- NewMaps = gb_trees:enter(XsiOp,Set,Maps),
- Pred = XsiOp#xsi_op.pred,
- OOP = XsiOp#xsi_op.op,
- SSet = case gb_trees:lookup(Pred,Uses) of
- {value, VV} ->
- ?SETS:add_element(OOP#temp.key,VV);
- none ->
- ?SETS:from_list([OOP#temp.key])
- end,
- NewUses = gb_trees:enter(Pred,SSet,Uses);
- #eop{} ->
- Set = case gb_trees:lookup(XsiOp,Maps) of
- {value, V} ->
- ?SETS:add_element(Key,V);
- none ->
- ?SETS:from_list([Key])
- end,
- NewMaps = gb_trees:enter(XsiOp,Set,Maps),
- Pred = XsiOp#xsi_op.pred,
- Op = XsiOp#xsi_op.op,
- SSet = case gb_trees:lookup(Pred,Uses) of
- {value, VV} ->
- ?SETS:add_element(Op#eop.stopped_by,VV);
- none ->
- ?SETS:from_list([Op#eop.stopped_by])
- end,
- NewUses = gb_trees:enter(Pred,SSet,Uses);
- _->
- NewMaps = Maps,
- NewUses = Uses
- end,
+ {NewMaps, NewUses} =
+ case XsiOp#xsi_op.op of
+ #bottom{} ->
+ Set = case gb_trees:lookup(XsiOp, Maps) of
+ {value, V} ->
+ ?SETS:add_element(Key, V);
+ none ->
+ ?SETS:from_list([Key])
+ end,
+ {gb_trees:enter(XsiOp, Set, Maps), Uses};
+ #temp{} ->
+ Set = case gb_trees:lookup(XsiOp, Maps) of
+ {value, V} ->
+ ?SETS:add_element(Key, V);
+ none ->
+ ?SETS:from_list([Key])
+ end,
+ Pred = XsiOp#xsi_op.pred,
+ OOP = XsiOp#xsi_op.op,
+ SSet = case gb_trees:lookup(Pred, Uses) of
+ {value, VV} ->
+ ?SETS:add_element(OOP#temp.key, VV);
+ none ->
+ ?SETS:from_list([OOP#temp.key])
+ end,
+ {gb_trees:enter(XsiOp, Set, Maps), gb_trees:enter(Pred, SSet, Uses)};
+ #eop{} ->
+ Set = case gb_trees:lookup(XsiOp, Maps) of
+ {value, V} ->
+ ?SETS:add_element(Key, V);
+ none ->
+ ?SETS:from_list([Key])
+ end,
+ Pred = XsiOp#xsi_op.pred,
+ Op = XsiOp#xsi_op.op,
+ SSet = case gb_trees:lookup(Pred, Uses) of
+ {value, VV} ->
+ ?SETS:add_element(Op#eop.stopped_by, VV);
+ none ->
+ ?SETS:from_list([Op#eop.stopped_by])
+ end,
+ {gb_trees:enter(XsiOp, Set, Maps), gb_trees:enter(Pred, SSet, Uses)};
+ _->
+ {Maps, Uses}
+ end,
add_map_and_uses(Ops, Key, NewMaps, NewUses).
post_process([], _CFGGraph) -> ok;
@@ -1162,37 +1159,38 @@ code_motion_in_block(L,[Inst|Insts],Cfg,XsiG,Visited,InsertionsAcc) ->
#pre_candidate{} ->
Def = Inst#pre_candidate.def,
Alu = Inst#pre_candidate.alu,
- case Def of
- bottom ->
- InstToAdd = Alu;
- #temp{} ->
- Key = Def#temp.key,
- {_V,Xsi} = ?GRAPH:vertex(XsiG,Key),
- case Xsi#xsi.wba of
- true ->
- %% Turn into a move
- Dst = ?RTL:alu_dst(Alu),
- Move = ?RTL:mk_move(Dst,Def#temp.var),
- pp_instr(Inst#pre_candidate.alu,nil), ?pp_debug(" ==> ",[]), pp_instr(Move,nil),
- %% Counting redundancies
- redundancy_add(),
- InstToAdd = Move;
- _ ->
- InstToAdd = Alu
- end;
- _ -> %% Def is a real variable
- %% Turn into a move
- Dst = ?RTL:alu_dst(Alu),
- Move = ?RTL:mk_move(Dst,Def),
- pp_instr(Alu,nil), ?pp_debug(" ==> ",[]), pp_instr(Move,nil),
- %% Counting redundancies
- redundancy_add(),
- InstToAdd = Move
- end,
+ InstToAdd =
+ case Def of
+ bottom ->
+ Alu;
+ #temp{} ->
+ Key = Def#temp.key,
+ {_V,Xsi} = ?GRAPH:vertex(XsiG,Key),
+ case Xsi#xsi.wba of
+ true ->
+ %% Turn into a move
+ Dst = ?RTL:alu_dst(Alu),
+ Move = ?RTL:mk_move(Dst,Def#temp.var),
+ pp_instr(Inst#pre_candidate.alu,nil), ?pp_debug(" ==> ",[]), pp_instr(Move,nil),
+ %% Counting redundancies
+ redundancy_add(),
+ Move;
+ _ ->
+ Alu
+ end;
+ _ -> %% Def is a real variable
+ %% Turn into a move
+ Dst = ?RTL:alu_dst(Alu),
+ Move = ?RTL:mk_move(Dst,Def),
+ pp_instr(Alu,nil), ?pp_debug(" ==> ",[]), pp_instr(Move,nil),
+ %% Counting redundancies
+ redundancy_add(),
+ Move
+ end,
code_motion_in_block(L,Insts,Cfg,XsiG,[InstToAdd|Visited],InsertionsAcc);
#xsi_link{} ->
Key = Inst#xsi_link.num,
- {_V,Xsi} = ?GRAPH:vertex(XsiG,Key),
+ {_V,Xsi} = ?GRAPH:vertex(XsiG,Key),
case Xsi#xsi.wba of
true ->
%% Xsi is a WBA, it might trigger insertions
@@ -1235,139 +1233,133 @@ get_insertions([],OpAcc,InsertionsAcc,_Visited,_Expr,_XsiG) ->
get_insertions([XsiOp|Ops],OpAcc,InsertionsAcc,Visited,Expr,XsiG) ->
Pred = XsiOp#xsi_op.pred,
Op = XsiOp#xsi_op.op,
- case Op of
- #bottom{} ->
- case gb_trees:lookup(Pred,InsertionsAcc) of
- {value,Insertion} ->
- From = Insertion#insertion.from,
- case lists:keyfind(Op, 1, From) of
- false ->
- ?pp_debug("~nThere has been insertions along the edge L~w already, but not for that operand | Op=",[Pred]),pp_arg(Op),
- Dst = Op#bottom.var,
- Expr2 = ?RTL:alu_dst_update(Expr,Dst),
- Inst = manufacture_computation(Pred,Expr2,Visited),
- Code = Insertion#insertion.code,
- NewInsertion = Insertion#insertion{from=[{Op,Dst}|From],code=[Inst|Code]},
- NewInsertionsAcc = gb_trees:update(Pred,NewInsertion,InsertionsAcc);
- {_, Val} ->
- ?pp_debug("~nThere has been insertions along the edge L~w already, and for that operand too | Op=",[Pred]),pp_arg(Op),
- Dst = Val,
- NewInsertionsAcc = InsertionsAcc
- end;
- none ->
- ?pp_debug("~nThere has been no insertion along the edge L~w, (and not for that operand, of course)| Op=",[Pred]),pp_arg(Op),
- Dst = Op#bottom.var,
- Expr2 = ?RTL:alu_dst_update(Expr,Dst),
- Inst = manufacture_computation(Pred,Expr2,Visited),
- NewInsertion = #insertion{from=[{Op,Dst}],code=[Inst]},
- NewInsertionsAcc = gb_trees:insert(Pred,NewInsertion,InsertionsAcc)
- end;
- #const_expr{} ->
- case gb_trees:lookup(Pred,InsertionsAcc) of
- {value,Insertion} ->
- From = Insertion#insertion.from,
- case lists:keyfind(Op, 1, From) of
- false ->
- ?pp_debug("~nThere have been insertions along the edge L~w already, but not for that operand | Op=",[Pred]),pp_arg(Op),
- Dst = Op#const_expr.var,
- Val = Op#const_expr.value,
- Inst = ?RTL:mk_move(Dst,Val),
- Code = Insertion#insertion.code,
- NewInsertion = Insertion#insertion{from=[{Op,Dst}|From],code=[Inst|Code]},
- NewInsertionsAcc = gb_trees:update(Pred,NewInsertion,InsertionsAcc);
- {_, Val} ->
- ?pp_debug("~nThere have been insertions along the edge L~w already, and for that operand too | Op=",[Pred]),pp_arg(Op),
- Dst = Val,
- NewInsertionsAcc = InsertionsAcc
- end;
- none ->
- ?pp_debug("~nThere has been no insertion along the edge L~w, (and not for that operand, of course)| Op=",[Pred]),pp_arg(Op),
- Dst = Op#const_expr.var,
- Val = Op#const_expr.value,
- Inst = ?RTL:mk_move(Dst,Val),
- NewInsertion = #insertion{from=[{Op,Dst}],code=[Inst]},
- NewInsertionsAcc = gb_trees:insert(Pred,NewInsertion,InsertionsAcc)
- end;
- #eop{} ->
- %% We treat expressions like bottoms
- %% The value must be recomputed, and therefore not available...
- case gb_trees:lookup(Pred,InsertionsAcc) of
- {value,Insertion} ->
- From = Insertion#insertion.from,
- case lists:keyfind(Op, 1, From) of
- false ->
- ?pp_debug("~nThere has been insertions along the edge L~w already, but not for that operand | Op=",[Pred]),pp_arg(Op),
- Dst = Op#eop.var,
- Expr2 = ?RTL:alu_dst_update(Expr,Dst),
- Inst = manufacture_computation(Pred,Expr2,Visited),
- Code = Insertion#insertion.code,
- NewInsertion = Insertion#insertion{from=[{Op,Dst}|From],code=[Inst|Code]},
- NewInsertionsAcc = gb_trees:update(Pred,NewInsertion,InsertionsAcc);
- {_, Val} ->
- ?pp_debug("~nThere has been insertions along the edge L~w already, and for that operand too | Op=",[Pred]),pp_arg(Op),
- Dst = Val,
- NewInsertionsAcc = InsertionsAcc
- end;
- none ->
- ?pp_debug("~nThere has been no insertion along the edge L~w, (and not for that operand, of course)| Op=",[Pred]),pp_arg(Op),
- Dst = Op#eop.var,
- Expr2 = ?RTL:alu_dst_update(Expr,Dst),
- Inst = manufacture_computation(Pred,Expr2,Visited),
- NewInsertion = #insertion{from=[{Op,Dst}],code=[Inst]},
- NewInsertionsAcc = gb_trees:insert(Pred,NewInsertion,InsertionsAcc)
- end;
- #temp{} ->
- case gb_trees:lookup(Pred,InsertionsAcc) of
- {value,Insertion} ->
- From = Insertion#insertion.from,
- case lists:keyfind(Op, 1, From) of
- false ->
- ?pp_debug("~nThere has been insertions along the edge L~w already, but not for that operand | Op=",[Pred]),pp_arg(Op),
- Key = Op#temp.key,
- {_V,Xsi} = ?GRAPH:vertex(XsiG,Key),
- case Xsi#xsi.wba of
- true ->
- ?pp_debug("~nBut the operand is a WBA Xsi: no need for insertion",[]),
- Dst = Op#temp.var,
- NewInsertionsAcc = InsertionsAcc;
- _ ->
- ?pp_debug("~nBut the operand is a NOT WBA Xsi: we must make an insertion",[]),
- Dst = ?RTL:mk_new_var(),
- Expr2 = ?RTL:alu_dst_update(Expr,Dst),
- Inst = manufacture_computation(Pred,Expr2,Visited),
- Code = Insertion#insertion.code,
- NewInsertion = Insertion#insertion{from=[{Op,Dst}|From],code=[Inst|Code]},
- NewInsertionsAcc = gb_trees:update(Pred,NewInsertion,InsertionsAcc)
- end;
- {_, Val} ->
- ?pp_debug("~nThere has been insertions along the edge L~w already, and for that operand too (Op=~w)",[Pred,Op]),
- ?pp_debug("~nThis means, this temp is a WBA Xsi's definition",[]),
- Dst = Val,
- NewInsertionsAcc = InsertionsAcc
- end;
- none ->
- ?pp_debug("~nThere has been no insertion along the edge L~w, (and not for that operand, of course | Op=",[Pred]),pp_arg(Op),
- Key = Op#temp.key,
- {_V,Xsi} = ?GRAPH:vertex(XsiG,Key),
- case Xsi#xsi.wba of
- true ->
- ?pp_debug("~nBut the operand is a WBA Xsi: no need for insertion",[]),
- Dst = Op#temp.var,
- NewInsertionsAcc = InsertionsAcc;
- _ ->
- ?pp_debug("~nBut the operand is a NOT WBA Xsi: we must make an insertion",[]),
- Dst = ?RTL:mk_new_var(),
- Expr2 = ?RTL:alu_dst_update(Expr,Dst),
- Inst = manufacture_computation(Pred,Expr2,Visited),
- NewInsertion = #insertion{from=[{Op,Dst}],code=[Inst]},
- NewInsertionsAcc = gb_trees:insert(Pred,NewInsertion,InsertionsAcc)
- end
- end;
- _ ->
- ?pp_debug("~nThe operand (Op=",[]),pp_arg(Op),?pp_debug(") is a real variable, no need for insertion along L~w",[Pred]),
- Dst = Op,
- NewInsertionsAcc = InsertionsAcc
- end,
+ {Dst, NewInsertionsAcc} =
+ case Op of
+ #bottom{} ->
+ case gb_trees:lookup(Pred,InsertionsAcc) of
+ {value,Insertion} ->
+ From = Insertion#insertion.from,
+ case lists:keyfind(Op, 1, From) of
+ false ->
+ ?pp_debug("~nThere has been insertions along the edge L~w already, but not for that operand | Op=",[Pred]),pp_arg(Op),
+ D = Op#bottom.var,
+ Expr2 = ?RTL:alu_dst_update(Expr,D),
+ Inst = manufacture_computation(Pred,Expr2,Visited),
+ Code = Insertion#insertion.code,
+ NewInsertion = Insertion#insertion{from=[{Op,D}|From],code=[Inst|Code]},
+ {D, gb_trees:update(Pred, NewInsertion, InsertionsAcc)};
+ {_, Val} ->
+ ?pp_debug("~nThere has been insertions along the edge L~w already, and for that operand too | Op=",[Pred]),pp_arg(Op),
+ {Val, InsertionsAcc}
+ end;
+ none ->
+ ?pp_debug("~nThere has been no insertion along the edge L~w, (and not for that operand, of course)| Op=",[Pred]),pp_arg(Op),
+ D = Op#bottom.var,
+ Expr2 = ?RTL:alu_dst_update(Expr, D),
+ Inst = manufacture_computation(Pred,Expr2,Visited),
+ NewInsertion = #insertion{from=[{Op,D}],code=[Inst]},
+ {D, gb_trees:insert(Pred,NewInsertion, InsertionsAcc)}
+ end;
+ #const_expr{} ->
+ case gb_trees:lookup(Pred,InsertionsAcc) of
+ {value,Insertion} ->
+ From = Insertion#insertion.from,
+ case lists:keyfind(Op, 1, From) of
+ false ->
+ ?pp_debug("~nThere have been insertions along the edge L~w already, but not for that operand | Op=",[Pred]),pp_arg(Op),
+ D = Op#const_expr.var,
+ Val = Op#const_expr.value,
+ Inst = ?RTL:mk_move(D, Val),
+ Code = Insertion#insertion.code,
+ NewInsertion = Insertion#insertion{from=[{Op,D}|From],code=[Inst|Code]},
+ {D, gb_trees:update(Pred,NewInsertion,InsertionsAcc)};
+ {_, Val} ->
+ ?pp_debug("~nThere have been insertions along the edge L~w already, and for that operand too | Op=",[Pred]),pp_arg(Op),
+ {Val, InsertionsAcc}
+ end;
+ none ->
+ ?pp_debug("~nThere has been no insertion along the edge L~w, (and not for that operand, of course)| Op=",[Pred]),pp_arg(Op),
+ D = Op#const_expr.var,
+ Val = Op#const_expr.value,
+ Inst = ?RTL:mk_move(D, Val),
+ NewInsertion = #insertion{from=[{Op,D}],code=[Inst]},
+ {D, gb_trees:insert(Pred,NewInsertion, InsertionsAcc)}
+ end;
+ #eop{} ->
+ %% We treat expressions like bottoms
+ %% The value must be recomputed, and therefore not available...
+ case gb_trees:lookup(Pred,InsertionsAcc) of
+ {value,Insertion} ->
+ From = Insertion#insertion.from,
+ case lists:keyfind(Op, 1, From) of
+ false ->
+ ?pp_debug("~nThere has been insertions along the edge L~w already, but not for that operand | Op=",[Pred]),pp_arg(Op),
+ D = Op#eop.var,
+ Expr2 = ?RTL:alu_dst_update(Expr, D),
+ Inst = manufacture_computation(Pred,Expr2,Visited),
+ Code = Insertion#insertion.code,
+ NewInsertion = Insertion#insertion{from=[{Op,D}|From],code=[Inst|Code]},
+ {D, gb_trees:update(Pred,NewInsertion, InsertionsAcc)};
+ {_, Val} ->
+ ?pp_debug("~nThere has been insertions along the edge L~w already, and for that operand too | Op=",[Pred]),pp_arg(Op),
+ {Val, InsertionsAcc}
+ end;
+ none ->
+ ?pp_debug("~nThere has been no insertion along the edge L~w, (and not for that operand, of course)| Op=",[Pred]),pp_arg(Op),
+ D = Op#eop.var,
+ Expr2 = ?RTL:alu_dst_update(Expr, D),
+ Inst = manufacture_computation(Pred,Expr2,Visited),
+ NewInsertion = #insertion{from=[{Op,D}],code=[Inst]},
+ {D, gb_trees:insert(Pred, NewInsertion, InsertionsAcc)}
+ end;
+ #temp{} ->
+ case gb_trees:lookup(Pred,InsertionsAcc) of
+ {value,Insertion} ->
+ From = Insertion#insertion.from,
+ case lists:keyfind(Op, 1, From) of
+ false ->
+ ?pp_debug("~nThere has been insertions along the edge L~w already, but not for that operand | Op=",[Pred]),pp_arg(Op),
+ Key = Op#temp.key,
+ {_V,Xsi} = ?GRAPH:vertex(XsiG,Key),
+ case Xsi#xsi.wba of
+ true ->
+ ?pp_debug("~nBut the operand is a WBA Xsi: no need for insertion",[]),
+ {Op#temp.var, InsertionsAcc};
+ _ ->
+ ?pp_debug("~nBut the operand is a NOT WBA Xsi: we must make an insertion",[]),
+ D = ?RTL:mk_new_var(),
+ Expr2 = ?RTL:alu_dst_update(Expr, D),
+ Inst = manufacture_computation(Pred,Expr2,Visited),
+ Code = Insertion#insertion.code,
+ NewInsertion = Insertion#insertion{from=[{Op,D}|From],code=[Inst|Code]},
+ {D, gb_trees:update(Pred, NewInsertion, InsertionsAcc)}
+ end;
+ {_, Val} ->
+ ?pp_debug("~nThere has been insertions along the edge L~w already, and for that operand too (Op=~w)",[Pred,Op]),
+ ?pp_debug("~nThis means, this temp is a WBA Xsi's definition",[]),
+ {Val, InsertionsAcc}
+ end;
+ none ->
+ ?pp_debug("~nThere has been no insertion along the edge L~w, (and not for that operand, of course | Op=",[Pred]),pp_arg(Op),
+ Key = Op#temp.key,
+ {_V,Xsi} = ?GRAPH:vertex(XsiG,Key),
+ case Xsi#xsi.wba of
+ true ->
+ ?pp_debug("~nBut the operand is a WBA Xsi: no need for insertion",[]),
+ {Op#temp.var, InsertionsAcc};
+ _ ->
+ ?pp_debug("~nBut the operand is a NOT WBA Xsi: we must make an insertion",[]),
+ D = ?RTL:mk_new_var(),
+ Expr2 = ?RTL:alu_dst_update(Expr, D),
+ Inst = manufacture_computation(Pred,Expr2,Visited),
+ NewInsertion = #insertion{from=[{Op,D}],code=[Inst]},
+ {D, gb_trees:insert(Pred, NewInsertion, InsertionsAcc)}
+ end
+ end;
+ _ ->
+ ?pp_debug("~nThe operand (Op=",[]),pp_arg(Op),?pp_debug(") is a real variable, no need for insertion along L~w",[Pred]),
+ {Op, InsertionsAcc}
+ end,
NewXsiOp = XsiOp#xsi_op{op=Dst},
get_insertions(Ops, [NewXsiOp|OpAcc], NewInsertionsAcc, Visited, Expr, XsiG).
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 12:31:25 +0000