diff options
| -rw-r--r-- | lib/compiler/src/v3_codegen.erl | 36 | ||||
| -rw-r--r-- | lib/compiler/src/v3_kernel.hrl | 2 |
2 files changed, 10 insertions, 28 deletions
diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl index 5eabe82cd7..6a825adbff 100644 --- a/lib/compiler/src/v3_codegen.erl +++ b/lib/compiler/src/v3_codegen.erl @@ -330,10 +330,8 @@ expr(#k_put{anno=A}=Put, I, _Vdb) -> Put#k_put{anno=#l{i=I,a=A#k.a}}; expr(#k_break{anno=A}=Break, I, _Vdb) -> Break#k_break{anno=#l{i=I,a=A#k.a}}; -expr(#k_guard_break{anno=A}=Break, I, Vdb) -> - Locked = [V || {V,_,_} <- Vdb], - L = #l{i=I,a=A#k.a}, - Break#k_guard_break{anno=L,locked=Locked}; +expr(#k_guard_break{anno=A}=Break, I, _Vdb) -> + Break#k_guard_break{anno=#l{i=I,a=A#k.a}}; expr(#k_return{anno=A}=Ret, I, _Vdb) -> Ret#k_return{anno=#l{i=I,a=A#k.a}}. @@ -494,8 +492,8 @@ cg(#k_return{anno=Le,args=Rs}, Vdb, Bef, St) -> return_cg(Rs, Le, Vdb, Bef, St); cg(#k_break{anno=Le,args=Bs}, Vdb, Bef, St) -> break_cg(Bs, Le, Vdb, Bef, St); -cg(#k_guard_break{anno=Le,args=Bs,locked=N}, Vdb, Bef, St) -> - guard_break_cg(Bs, N, Le, Vdb, Bef, St); +cg(#k_guard_break{anno=Le,args=Bs}, Vdb, Bef, St) -> + guard_break_cg(Bs, Le, Vdb, Bef, St); cg(#cg_need_heap{h=H}, _Vdb, Bef, St) -> {[{test_heap,H,max_reg(Bef#sr.reg)}],Bef,St}. @@ -718,9 +716,8 @@ bsm_rename_ctx(#cg_block{es=Es0}=Block, Old, New, true) -> %% inside the block. Es = bsm_rename_ctx_list(Es0, Old, New, true), bsm_forget_var(Block#cg_block{es=Es}, Old); -bsm_rename_ctx(#k_guard_break{locked=Locked0}=Break, Old, _New, _InProt) -> - Locked = Locked0 -- [Old], - bsm_forget_var(Break#k_guard_break{locked=Locked}, Old). +bsm_rename_ctx(#k_guard_break{}=Break, Old, _New, _InProt) -> + bsm_forget_var(Break, Old). bsm_rename_ctx_list([C|Cs], Old, New, InProt) -> [bsm_rename_ctx(C, Old, New, InProt)| @@ -2330,13 +2327,12 @@ break_cg(Bs, Le, Vdb, Bef, St) -> {Ms ++ [{jump,{f,St#cg.break}}], Int#sr{reg=clear_regs(Int#sr.reg)},St}. -guard_break_cg(Bs, Locked, #l{i=I}, Vdb, #sr{reg=Reg0}=Bef, St) -> - RegLocked = get_locked_regs(Reg0, Locked), - #sr{reg=Reg1} = Int = clear_dead(Bef#sr{reg=RegLocked}, I, Vdb), +guard_break_cg(Bs, #l{i=I}, Vdb, #sr{reg=Reg0}=Bef, St) -> + #sr{reg=Reg1} = Int = clear_dead(Bef, I, Vdb), Reg2 = trim_free(Reg1), NumLocked = length(Reg2), Moves0 = gen_moves(Bs, Bef, NumLocked, []), - Moves = order_moves(Moves0, find_scratch_reg(RegLocked)), + Moves = order_moves(Moves0, find_scratch_reg(Reg0)), {BreakVars,_} = mapfoldl(fun(_, RegNum) -> {{RegNum,gbreakvar},RegNum+1} end, length(Reg2), Bs), @@ -2344,20 +2340,6 @@ guard_break_cg(Bs, Locked, #l{i=I}, Vdb, #sr{reg=Reg0}=Bef, St) -> Aft = Int#sr{reg=Reg}, {Moves ++ [{jump,{f,St#cg.break}}],Aft,St}. -get_locked_regs([R|Rs0], Preserve) -> - case {get_locked_regs(Rs0, Preserve),R} of - {[],{_,V}} -> - case lists:member(V, Preserve) of - true -> [R]; - false -> [] - end; - {[],_} -> - []; - {Rs,_} -> - [R|Rs] - end; -get_locked_regs([], _) -> []. - %% cg_reg_arg(Arg0, Info) -> Arg %% cg_reg_args([Arg0], Info) -> [Arg] %% Convert argument[s] into registers. Literal values are returned unchanged. diff --git a/lib/compiler/src/v3_kernel.hrl b/lib/compiler/src/v3_kernel.hrl index 87011b7680..7cd30b25a8 100644 --- a/lib/compiler/src/v3_kernel.hrl +++ b/lib/compiler/src/v3_kernel.hrl @@ -79,7 +79,7 @@ -record(k_guard_clause, {anno=[],guard,body}). -record(k_break, {anno=[],args=[]}). --record(k_guard_break, {anno=[],args=[],locked=[]}). +-record(k_guard_break, {anno=[],args=[]}). -record(k_return, {anno=[],args=[]}). %%k_get_anno(Thing) -> element(2, Thing). |