diff options
Diffstat (limited to 'backends')
| -rw-r--r-- | backends/lean/Base/Primitives/Scalar.lean | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/backends/lean/Base/Primitives/Scalar.lean b/backends/lean/Base/Primitives/Scalar.lean index b8d93d30..be930754 100644 --- a/backends/lean/Base/Primitives/Scalar.lean +++ b/backends/lean/Base/Primitives/Scalar.lean @@ -1394,6 +1394,16 @@ instance (ty : ScalarTy) : DecidableEq (Scalar ty) := @[simp] theorem Scalar.neq_to_neq_val {ty} : ∀ {i j : Scalar ty}, (¬ i = j) ↔ ¬ i.val = j.val := by simp [eq_equiv] +instance (ty: ScalarTy) : Preorder (Scalar ty) where + le_refl := fun a => by simp + le_trans := fun a b c => by + intro Hab Hbc + exact (le_trans ((Scalar.le_equiv _ _).1 Hab) ((Scalar.le_equiv _ _).1 Hbc)) + lt_iff_le_not_le := fun a b => by + trans (a: Int) < (b: Int); exact (Scalar.lt_equiv _ _) + trans (a: Int) ≤ (b: Int) ∧ ¬ (b: Int) ≤ (a: Int); exact lt_iff_le_not_le + repeat rewrite [← Scalar.le_equiv]; rfl + -- Leading zeros def core.num.Usize.leading_zeros (x : Usize) : U32 := sorry def core.num.U8.leading_zeros (x : U8) : U32 := sorry |