diff options
Diffstat (limited to 'backend/SelectDiv.vp')
-rw-r--r-- | backend/SelectDiv.vp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/backend/SelectDiv.vp b/backend/SelectDiv.vp index 938ce5d8..a275a850 100644 --- a/backend/SelectDiv.vp +++ b/backend/SelectDiv.vp @@ -182,4 +182,16 @@ Nondetfunction divf (e1: expr) (e2: expr) := | _ => Eop Odivf (e1 ::: e2 ::: Enil) end. +Definition divfsimm (e: expr) (n: float32) := + match Float32.exact_inverse n with + | Some n' => Eop Omulfs (e ::: Eop (Osingleconst n') Enil ::: Enil) + | None => Eop Odivfs (e ::: Eop (Osingleconst n) Enil ::: Enil) + end. + +Nondetfunction divfs (e1: expr) (e2: expr) := + match e2 with + | Eop (Osingleconst n2) Enil => divfsimm e1 n2 + | _ => Eop Odivfs (e1 ::: e2 ::: Enil) + end. + |