diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/hipe/icode/hipe_beam_to_icode.erl | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/lib/hipe/icode/hipe_beam_to_icode.erl b/lib/hipe/icode/hipe_beam_to_icode.erl index 02fe773edb..4691662f9f 100644 --- a/lib/hipe/icode/hipe_beam_to_icode.erl +++ b/lib/hipe/icode/hipe_beam_to_icode.erl @@ -1141,6 +1141,32 @@ trans_fun([{get_map_elements,{f,Lbl},Map,{list,KVPs}}|Instructions], Env) -> {TestInstructions, GetInstructions, Env2} = trans_map_query(MapVar, map_label(Lbl), Env1, KVPs), [MapMove, TestInstructions, GetInstructions | trans_fun(Instructions, Env2)]; +%%--- put_map_assoc --- +trans_fun([{put_map_assoc,{f,Lbl},Map,Dst,_N,{list,Pairs}}|Instructions], Env) -> + {MapMove, MapVar, Env1} = mk_move_and_var(Map, Env), + TempMapVar = mk_var(new), + TempMapMove = hipe_icode:mk_move(TempMapVar, MapVar), + {PutInstructions, Env2} + = case Lbl > 0 of + true -> + gen_put_map_instrs(exists, assoc, TempMapVar, Dst, Lbl, Pairs, Env1); + false -> + gen_put_map_instrs(new, assoc, TempMapVar, Dst, new, Pairs, Env1) + end, + [MapMove, TempMapMove, PutInstructions | trans_fun(Instructions, Env2)]; +%%--- put_map_exact --- +trans_fun([{put_map_exact,{f,Lbl},Map,Dst,_N,{list,Pairs}}|Instructions], Env) -> + {MapMove, MapVar, Env1} = mk_move_and_var(Map, Env), + TempMapVar = mk_var(new), + TempMapMove = hipe_icode:mk_move(TempMapVar, MapVar), + {PutInstructions, Env2} + = case Lbl > 0 of + true -> + gen_put_map_instrs(exists, exact, TempMapVar, Dst, Lbl, Pairs, Env1); + false -> + gen_put_map_instrs(new, exact, TempMapVar, Dst, new, Pairs, Env1) + end, + [MapMove, TempMapMove, PutInstructions | trans_fun(Instructions, Env2)]; %%-------------------------------------------------------------------- %%--- ERROR HANDLING --- %%-------------------------------------------------------------------- @@ -1540,6 +1566,83 @@ trans_map_query(MapVar, FailLabel, Env, [Key,Val|KVPs]) -> {TestList, GetList, Env2} = trans_map_query(MapVar, FailLabel, Env1, KVPs), {[Move, IsKeyCall, TrueTest, PassLabel|TestList], [GetCall|GetList], Env2}. +%% +%% Generates a fail label if necessary when translating put_map_* instructions. +%% +gen_put_map_instrs(exists, Op, TempMapVar, Dst, FailLbl, Pairs, Env) -> + TrueLabel = mk_label(new), + IsMapCode = hipe_icode:mk_type([TempMapVar], map, + hipe_icode:label_name(TrueLabel), map_label(FailLbl)), + DstMapVar = mk_var(Dst), + {ReturnLbl, PutInstructions, Env1} + = case Op of + assoc -> + trans_put_map_assoc(TempMapVar, DstMapVar, Pairs, Env, []); + exact -> + trans_put_map_exact(TempMapVar, DstMapVar, + map_label(FailLbl), Pairs, Env, []) + end, + {[IsMapCode, TrueLabel, PutInstructions, ReturnLbl], Env1}; +gen_put_map_instrs(new, Op, TempMapVar, Dst, new, Pairs, Env) -> + TrueLabel = mk_label(new), + FailLbl = mk_label(new), + IsMapCode = hipe_icode:mk_type([TempMapVar], map, + hipe_icode:label_name(TrueLabel), + hipe_icode:label_name(FailLbl)), + DstMapVar = mk_var(Dst), + {ReturnLbl, PutInstructions, Env1} + = case Op of + assoc -> + trans_put_map_assoc(TempMapVar, DstMapVar, Pairs, Env, []); + exact -> + trans_put_map_exact(TempMapVar, DstMapVar, + hipe_icode:label_name(FailLbl), Pairs, Env, []) + end, + Fail = hipe_icode:mk_fail([hipe_icode:mk_const(badarg)], error), + {[IsMapCode, TrueLabel, PutInstructions, FailLbl, Fail, ReturnLbl], Env1}. + +%%----------------------------------------------------------------------- +%% This function generates the instructions needed to insert several +%% (Key, Value) pairs into an existing map, each recursive call inserts +%% one (Key, Value) pair. +%%----------------------------------------------------------------------- +trans_put_map_assoc(MapVar, DestMapVar, [], Env, Acc) -> + MoveToReturnVar = hipe_icode:mk_move(DestMapVar, MapVar), + ReturnLbl = mk_label(new), + GotoReturn = hipe_icode:mk_goto(hipe_icode:label_name(ReturnLbl)), + {ReturnLbl, lists:reverse([GotoReturn, MoveToReturnVar | Acc]), Env}; +trans_put_map_assoc(MapVar, DestMapVar, [Key, Value | Rest], Env, Acc) -> + {MoveKey, KeyVar, Env1} = mk_move_and_var(Key, Env), + {MoveVal, ValVar, Env2} = mk_move_and_var(Value, Env1), + BifCall = hipe_icode:mk_call([MapVar], maps, put, + [KeyVar, ValVar, MapVar], remote), + trans_put_map_assoc(MapVar, DestMapVar, Rest, Env2, + [BifCall, MoveVal, MoveKey | Acc]). + +%%----------------------------------------------------------------------- +%% This function generates the instructions needed to update several +%% (Key, Value) pairs in an existing map, each recursive call inserts +%% one (Key, Value) pair. +%%----------------------------------------------------------------------- +trans_put_map_exact(MapVar, DestMapVar, _FLbl, [], Env, Acc) -> + MoveToReturnVar = hipe_icode:mk_move(DestMapVar, MapVar), + ReturnLbl = mk_label(new), + GotoReturn = hipe_icode:mk_goto(hipe_icode:label_name(ReturnLbl)), + {ReturnLbl, lists:reverse([GotoReturn, MoveToReturnVar | Acc]), Env}; +trans_put_map_exact(MapVar, DestMapVar, FLbl, [Key, Value | Rest], Env, Acc) -> + SuccLbl = mk_label(new), + {MoveKey, KeyVar, Env1} = mk_move_and_var(Key, Env), + {MoveVal, ValVar, Env2} = mk_move_and_var(Value, Env1), + IsKey = hipe_icode:mk_new_var(), + BifCallIsKey = hipe_icode:mk_call([IsKey], maps, is_key, + [KeyVar, MapVar], remote), + IsKeyTest = hipe_icode:mk_if('=:=', [IsKey, hipe_icode:mk_const(true)], + hipe_icode:label_name(SuccLbl), FLbl), + BifCallPut = hipe_icode:mk_call([MapVar], maps, put, + [KeyVar, ValVar, MapVar], remote), + Acc1 = [BifCallPut, SuccLbl, IsKeyTest, BifCallIsKey, MoveVal, MoveKey | Acc], + trans_put_map_exact(MapVar, DestMapVar, FLbl, Rest, Env2, Acc1). + %%----------------------------------------------------------------------- %% trans_puts(Code, Environment) -> %% {Movs, Code, Vars, NewEnv} |