diff options
Diffstat (limited to 'mppa_k1c/SelectOp.vp')
-rw-r--r-- | mppa_k1c/SelectOp.vp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/mppa_k1c/SelectOp.vp b/mppa_k1c/SelectOp.vp index d32a7b85..e1aaf588 100644 --- a/mppa_k1c/SelectOp.vp +++ b/mppa_k1c/SelectOp.vp @@ -350,6 +350,18 @@ Nondetfunction or (e1: expr) (e2: expr) := then Eop (Oinsf zstop zstart) (prev:::fld:::Enil) else Eop Oor (e1:::e2:::Enil) else Eop Oor (e1:::e2:::Enil) + | (Eop (Oandimm nmask) (prev:::Enil)), + (Eop (Oandimm mask) (fld:::Enil)) => + let zstart := 0 in + let zstop := int_highest_bit mask in + if is_bitfield zstop zstart + then + let mask' := Int.repr (zbitfield_mask zstop zstart) in + if and_dec (Int.eq_dec mask mask') + (Int.eq_dec nmask (Int.not mask')) + then Eop (Oinsf zstop zstart) (prev:::fld:::Enil) + else Eop Oor (e1:::e2:::Enil) + else Eop Oor (e1:::e2:::Enil) | _, _ => Eop Oor (e1:::e2:::Enil) end. |