diff options
Diffstat (limited to 'mppa_k1c/SelectLong.vp')
| -rw-r--r-- | mppa_k1c/SelectLong.vp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/mppa_k1c/SelectLong.vp b/mppa_k1c/SelectLong.vp index b29b9712..fe739a01 100644 --- a/mppa_k1c/SelectLong.vp +++ b/mppa_k1c/SelectLong.vp @@ -66,6 +66,12 @@ Definition longofintu (e: expr) := (** ** Integer addition and pointer addition *) +Definition addlimm_shllimm sh k2 e1 := + match shift1_4_of_z (Int.unsigned sh) with + | Some s14 => Eop (Oaddxlimm s14 k2) (e1:::Enil) + | None => Eop (Oaddlimm k2) ((Eop (Oshllimm sh) (e1:::Enil)):::Enil) + end. + Nondetfunction addlimm (n: int64) (e: expr) := if Int64.eq n Int64.zero then e else match e with @@ -76,9 +82,16 @@ Nondetfunction addlimm (n: int64) (e: expr) := else Eop (Oaddlimm n) (e ::: Enil)) | Eop (Oaddrstack m) Enil => Eop (Oaddrstack (Ptrofs.add (Ptrofs.of_int64 n) m)) Enil | Eop (Oaddlimm m) (t ::: Enil) => Eop (Oaddlimm(Int64.add n m)) (t ::: Enil) + | Eop (Oshllimm sh) (t1:::Enil) => addlimm_shllimm sh n t1 | _ => Eop (Oaddlimm n) (e ::: Enil) end. +Definition addl_shllimm n e1 e2 := + match shift1_4_of_z (Int.unsigned n) with + | Some s14 => Eop (Oaddxl s14) (e1:::e2:::Enil) + | None => Eop Oaddl (e2:::(Eop (Oshllimm n) (e1:::Enil)):::Enil) + end. + Nondetfunction addl (e1: expr) (e2: expr) := if Archi.splitlong then SplitLong.addl e1 e2 else match e1, e2 with @@ -102,6 +115,10 @@ Nondetfunction addl (e1: expr) (e2: expr) := Eop (Omaddlimm n) (t1:::t2:::Enil) | (Eop (Omullimm n) (t2:::Enil)), t1 => Eop (Omaddlimm n) (t1:::t2:::Enil) + | (Eop (Oshllimm n) (t1:::Enil)), t2 => + addl_shllimm n t1 t2 + | t2, (Eop (Oshllimm n) (t1:::Enil)) => + addl_shllimm n t1 t2 | _, _ => Eop Oaddl (e1:::e2:::Enil) end. |