Require Export Coq.Lists.List.
Require Export Coq.ZArith.ZArith.
Require Export compcert.lib.Coqlib.
Require Export compcert.lib.Integers.
Require Export compcert.lib.Floats.
Require Export compcert.common.Values.
Require Export VST.msl.eq_dec.
Require Export VST.msl.Coqlib2.
Require Export VST.floyd.coqlib3.
Require Export VST.floyd.sublist.
Hint Rewrite <- offset_val_force_ptr : norm.
Hint Rewrite offset_offset_val: norm.
Hint Rewrite add_repr add64_repr ptrofs_add_repr : norm.
Hint Rewrite mul_repr mul64_repr ptrofs_mul_repr : norm.
Hint Rewrite sub_repr sub64_repr ptrofs_sub_repr : norm.
Hint Rewrite and_repr and64_repr : norm.
Hint Rewrite or_repr or64_repr : norm.
Hint Rewrite neg_repr neg64_repr : norm.

Lemma ltu_repr: forall i j,
(0 <= i <= Int.max_unsigned ->
0 <= j <= Int.max_unsigned ->
Int.ltu (Int.repr i) (Int.repr j) = true -> i<j)%Z.