diff options
Diffstat (limited to 'ia32/ConstpropOp.vp')
| -rw-r--r-- | ia32/ConstpropOp.vp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/ia32/ConstpropOp.vp b/ia32/ConstpropOp.vp index b861107..b95ad66 100644 --- a/ia32/ConstpropOp.vp +++ b/ia32/ConstpropOp.vp @@ -91,11 +91,13 @@ Nondetfunction eval_static_addressing (addr: addressing) (vl: list approx) := | _, _ => Unknown end. +Parameter propagate_float_constants: unit -> bool. + Nondetfunction eval_static_operation (op: operation) (vl: list approx) := match op, vl with | Omove, v1::nil => v1 | Ointconst n, nil => I n - | Ofloatconst n, nil => F n + | Ofloatconst n, nil => if propagate_float_constants tt then F n else Unknown | Ocast8signed, I n1 :: nil => I(Int.sign_ext 8 n1) | Ocast8unsigned, I n1 :: nil => I(Int.zero_ext 8 n1) | Ocast16signed, I n1 :: nil => I(Int.sign_ext 16 n1) @@ -132,7 +134,7 @@ Nondetfunction eval_static_operation (op: operation) (vl: list approx) := | Odivf, F n1 :: F n2 :: nil => F(Float.div n1 n2) | Osingleoffloat, F n1 :: nil => F(Float.singleoffloat n1) | Ointoffloat, F n1 :: nil => eval_static_intoffloat n1 - | Ofloatofint, I n1 :: nil => F(Float.floatofint n1) + | Ofloatofint, I n1 :: nil => if propagate_float_constants tt then F(Float.floatofint n1) else Unknown | Ocmp c, vl => eval_static_condition_val c vl | _, _ => Unknown end. |