diff options
Diffstat (limited to 'mppa_k1c/SelectOp.vp')
| -rw-r--r-- | mppa_k1c/SelectOp.vp | 173 |
1 files changed, 123 insertions, 50 deletions
diff --git a/mppa_k1c/SelectOp.vp b/mppa_k1c/SelectOp.vp index 6adcebe5..1cac2257 100644 --- a/mppa_k1c/SelectOp.vp +++ b/mppa_k1c/SelectOp.vp @@ -51,9 +51,10 @@ Require Import Floats. Require Import Op. Require Import CminorSel. Require Import OpHelpers. -Require Import ExtValues. +Require Import ExtValues ExtFloats. Require Import DecBoolOps. Require Import Chunks. +Require Import Builtins. Require Compopts. Local Open Scope cminorsel_scope. @@ -65,34 +66,52 @@ Section SELECT. Context {hf: helper_functions}. +Nondetfunction cond_to_condition0 (cond : condition) (args : exprlist) := + match cond, args with + | (Ccompimm c x), (e1 ::: Enil) => + if Int.eq_dec x Int.zero + then Some ((Ccomp0 c), e1) + else None + + | (Ccompuimm c x), (e1 ::: Enil) => + if Int.eq_dec x Int.zero + then Some ((Ccompu0 c), e1) + else None + + | (Ccomplimm c x), (e1 ::: Enil) => + if Int64.eq_dec x Int64.zero + then Some ((Ccompl0 c), e1) + else None + + | (Ccompluimm c x), (e1 ::: Enil) => + if Int64.eq_dec x Int64.zero + then Some ((Ccomplu0 c), e1) + else None + + | _, _ => None + end. + (** Ternary operator *) -Definition select_base o0 o1 oselect := - Eop (Oselect (Ccomp0 Cne)) - (o0:::o1:::oselect:::Enil). - -Definition select o0 o1 oselect := - select_base o0 o1 oselect. - -Definition selectl_base o0 o1 oselect := - Eop (Oselectl (Ccomp0 Cne)) - (o0:::o1:::oselect:::Enil). - -Definition selectl o0 o1 oselect := - selectl_base o0 o1 oselect. - -Definition selectf_base o0 o1 oselect := - Eop (Oselectf (Ccomp0 Cne)) - (o0:::o1:::oselect:::Enil). - -Definition selectf o0 o1 oselect := - selectf_base o0 o1 oselect. - -Definition selectfs_base o0 o1 oselect := - Eop (Oselectfs (Ccomp0 Cne)) - (o0:::o1:::oselect:::Enil). - -Definition selectfs o0 o1 oselect := - selectfs_base o0 o1 oselect. +Nondetfunction select0 (ty : typ) (cond0 : condition0) (e1 e2 e3: expr) := + match ty, cond0, e1, e2, e3 with + | Tint, cond0, e1, (Eop (Ointconst imm) Enil), e3 => + (Eop (Oselimm cond0 imm) (e1 ::: e3 ::: Enil)) + | Tint, cond0, (Eop (Ointconst imm) Enil), e2, e3 => + (Eop (Oselimm (negate_condition0 cond0) imm) (e2 ::: e3 ::: Enil)) + | Tlong, cond0, e1, (Eop (Olongconst imm) Enil), e3 => + (Eop (Osellimm cond0 imm) (e1 ::: e3 ::: Enil)) + | Tlong, cond0, (Eop (Olongconst imm) Enil), e2, e3 => + (Eop (Osellimm (negate_condition0 cond0) imm) (e2 ::: e3 ::: Enil)) + | _, _, _ => (Eop (Osel cond0 ty) (e1 ::: e2 ::: e3 ::: Enil)) + end. + +Definition select (ty : typ) (cond : condition) (args : exprlist) (e1 e2: expr) : option expr := + Some( + match cond_to_condition0 cond args with + | None => select0 ty (Ccomp0 Cne) e1 e2 (Eop (Ocmp cond) args) + | Some(cond0, ec) => select0 ty cond0 e1 e2 ec + end). + (** ** Constants **) @@ -104,6 +123,15 @@ Definition addrstack (ofs: ptrofs) := (** ** Integer addition and pointer addition *) +Definition addimm_shlimm sh k2 e1 := + if Compopts.optim_addx tt + then + match shift1_4_of_z (Int.unsigned sh) with + | Some s14 => Eop (Oaddximm s14 k2) (e1:::Enil) + | None => Eop (Oaddimm k2) ((Eop (Oshlimm sh) (e1:::Enil)):::Enil) + end + else Eop (Oaddimm k2) ((Eop (Oshlimm sh) (e1:::Enil)):::Enil). + Nondetfunction addimm (n: int) (e: expr) := if Int.eq n Int.zero then e else match e with @@ -111,9 +139,20 @@ Nondetfunction addimm (n: int) (e: expr) := | Eop (Oaddrsymbol s m) Enil => Eop (Oaddrsymbol s (Ptrofs.add (Ptrofs.of_int n) m)) Enil | Eop (Oaddrstack m) Enil => Eop (Oaddrstack (Ptrofs.add (Ptrofs.of_int n) m)) Enil | Eop (Oaddimm m) (t ::: Enil) => Eop (Oaddimm(Int.add n m)) (t ::: Enil) + | Eop (Oaddximm sh m) (t ::: Enil) => Eop (Oaddximm sh (Int.add n m)) (t ::: Enil) + | Eop (Oshlimm sh) (t1:::Enil) => addimm_shlimm sh n t1 | _ => Eop (Oaddimm n) (e ::: Enil) end. +Definition add_shlimm n e1 e2 := + if Compopts.optim_addx tt + then + match shift1_4_of_z (Int.unsigned n) with + | Some s14 => Eop (Oaddx s14) (e1:::e2:::Enil) + | None => Eop Oadd (e2:::(Eop (Oshlimm n) (e1:::Enil)):::Enil) + end + else Eop Oadd (e2:::(Eop (Oshlimm n) (e1:::Enil)):::Enil). + Nondetfunction add (e1: expr) (e2: expr) := match e1, e2 with | Eop (Ointconst n1) Enil, t2 => addimm n1 t2 @@ -135,7 +174,11 @@ Nondetfunction add (e1: expr) (e2: expr) := | t1, (Eop (Omulimm n) (t2:::Enil)) => Eop (Omaddimm n) (t1:::t2:::Enil) | (Eop (Omulimm n) (t2:::Enil)), t1 => - Eop (Omaddimm n) (t1:::t2:::Enil) + Eop (Omaddimm n) (t1:::t2:::Enil) + | (Eop (Oshlimm n) (t1:::Enil)), t2 => + add_shlimm n t1 t2 + | t2, (Eop (Oshlimm n) (t1:::Enil)) => + add_shlimm n t1 t2 | _, _ => Eop Oadd (e1:::e2:::Enil) end. @@ -151,6 +194,10 @@ Nondetfunction sub (e1: expr) (e2: expr) := addimm n1 (Eop Osub (t1:::t2:::Enil)) | t1, Eop (Oaddimm n2) (t2:::Enil) => addimm (Int.neg n2) (Eop Osub (t1:::t2:::Enil)) + | t1, (Eop Omul (t2:::t3:::Enil)) => + Eop Omsub (t1:::t2:::t3:::Enil) + | t1, (Eop (Omulimm n) (t2:::Enil)) => + Eop (Omaddimm (Int.neg n)) (t1:::t2:::Enil) | _, _ => Eop Osub (e1:::e2:::Enil) end. @@ -321,24 +368,6 @@ Nondetfunction or (e1: expr) (e2: expr) := else Eop Oor (e1:::e2:::Enil) | (Eop Onot (t1:::Enil)), t2 => Eop Oorn (t1:::t2:::Enil) | t1, (Eop Onot (t2:::Enil)) => Eop Oorn (t2:::t1:::Enil) - | (Eop Oand ((Eop Oneg ((Eop (Ocmp (Ccompimm Ceq zero0)) - (y0:::Enil)):::Enil)):::v0:::Enil)), - (Eop Oand ((Eop Oneg ((Eop (Ocmp (Ccompimm Cne zero1)) - (y1:::Enil)):::Enil)):::v1:::Enil)) => - if same_expr_pure y0 y1 - && Int.eq zero0 Int.zero - && Int.eq zero1 Int.zero - then select_base v0 v1 y0 - else Eop Oor (e1:::e2:::Enil) - | (Eop Oand ((Eop Oneg ((Eop (Ocmp (Ccompuimm Ceq zero0)) - (y0:::Enil)):::Enil)):::v0:::Enil)), - (Eop Oand ((Eop Oneg ((Eop (Ocmp (Ccompuimm Cne zero1)) - (y1:::Enil)):::Enil)):::v1:::Enil)) => - if same_expr_pure y0 y1 - && Int.eq zero0 Int.zero - && Int.eq zero1 Int.zero - then select_base v0 v1 y0 - else Eop Oor (e1:::e2:::Enil) | (Eop (Oandimm nmask) (prev:::Enil)), (Eop (Oandimm mask) ((Eop (Oshlimm start) (fld:::Enil)):::Enil)) => @@ -584,18 +613,26 @@ Nondetfunction addressing (chunk: memory_chunk) (e: expr) := match e with | Eop (Oaddrstack n) Enil => (Ainstack n, Enil) | Eop (Oaddrsymbol id ofs) Enil => - (if (orb (Archi.pic_code tt) (negb (Compopts.optim_fglobaladdrtmp tt))) + (if (orb (Archi.pic_code tt) (negb (Compopts.optim_globaladdrtmp tt))) then (Aindexed Ptrofs.zero, e:::Enil) else (Aglobal id ofs, Enil)) | Eop (Oaddimm n) (e1:::Enil) => (Aindexed (Ptrofs.of_int n), e1:::Enil) | Eop (Oaddlimm n) (e1:::Enil) => (Aindexed (Ptrofs.of_int64 n), e1:::Enil) | Eop Oaddl (e1:::(Eop (Oshllimm scale) (e2:::Enil)):::Enil) => - (if Compopts.optim_fxsaddr tt + (if Compopts.optim_xsaddr tt then let zscale := Int.unsigned scale in if Z.eq_dec zscale (zscale_of_chunk chunk) then (Aindexed2XS zscale, e1:::e2:::Enil) else (Aindexed2, e1:::(Eop (Oshllimm scale) (e2:::Enil)):::Enil) else (Aindexed2, e1:::(Eop (Oshllimm scale) (e2:::Enil)):::Enil)) + | Eop (Oaddxl sh) (e1:::e2:::Enil) => + let zscale := ExtValues.z_of_shift1_4 sh in + let scale := Int.repr zscale in + (if Compopts.optim_xsaddr tt + then if Z.eq_dec zscale (zscale_of_chunk chunk) + then (Aindexed2XS zscale, e2:::e1:::Enil) + else (Aindexed2, e2:::(Eop (Oshllimm scale) (e1:::Enil)):::Enil) + else (Aindexed2, e2:::(Eop (Oshllimm scale) (e1:::Enil)):::Enil)) | Eop Oaddl (e1:::e2:::Enil) => (Aindexed2, e1:::e2:::Enil) | _ => (Aindexed Ptrofs.zero, e:::Enil) end. @@ -624,9 +661,45 @@ Definition divf_base (e1: expr) (e2: expr) := (* Eop Odivf (e1 ::: e2 ::: Enil). *) Eexternal f64_div sig_ff_f (e1 ::: e2 ::: Enil). -Definition divfs_base (e1: expr) (e2: expr) := +Definition divfs_base1 (e2 : expr) := + Eop Oinvfs (e2 ::: Enil). +Definition divfs_baseX (e1 : expr) (e2 : expr) := (* Eop Odivf (e1 ::: e2 ::: Enil). *) Eexternal f32_div sig_ss_s (e1 ::: e2 ::: Enil). + +Nondetfunction divfs_base (e1: expr) := + match e1 with + | Eop (Osingleconst f) Enil => + (if Float32.eq_dec f ExtFloat32.one + then divfs_base1 + else divfs_baseX e1) + | _ => divfs_baseX e1 + end. + +Nondetfunction gen_fma args := + match args with + | (Eop Onegf (e1:::Enil)):::e2:::e3:::Enil => Some (Eop Ofmsubf (e3:::e1:::e2:::Enil)) + | e1:::e2:::e3:::Enil => Some (Eop Ofmaddf (e3:::e1:::e2:::Enil)) + | _ => None + end. + +Nondetfunction gen_fmaf args := + match args with + | (Eop Onegfs (e1:::Enil)):::e2:::e3:::Enil => Some (Eop Ofmsubfs (e3:::e1:::e2:::Enil)) + | e1:::e2:::e3:::Enil => Some (Eop Ofmaddfs (e3:::e1:::e2:::Enil)) + | _ => None + end. + +Definition platform_builtin (b: platform_builtin) (args: exprlist) : option expr := + match b with + | BI_fmin => Some (Eop Ominf args) + | BI_fmax => Some (Eop Omaxf args) + | BI_fminf => Some (Eop Ominfs args) + | BI_fmaxf => Some (Eop Omaxfs args) + | BI_fabsf => Some (Eop Oabsfs args) + | BI_fma => gen_fma args + | BI_fmaf => gen_fmaf args + end. End SELECT. (* Local Variables: *) |