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authorXavier Leroy <xavier.leroy@college-de-france.fr>2020-06-21 18:22:00 +0200
committerXavier Leroy <xavier.leroy@college-de-france.fr>2020-12-29 15:29:56 +0100
commitaba0e740f25ffa5c338dfa76cab71144802cebc2 (patch)
tree746115009aa60b802a2b5369a5106a2e971eb22f /riscV/SelectLongproof.v
parent2e202e2b17cc3ae909628b7b3ae0b8ede3117d82 (diff)
downloadcompcert-kvx-aba0e740f25ffa5c338dfa76cab71144802cebc2.tar.gz
compcert-kvx-aba0e740f25ffa5c338dfa76cab71144802cebc2.zip
Replace `omega` tactic with `lia`
Since Coq 8.12, `omega` is flagged as deprecated and scheduled for removal. Also replace CompCert's homemade tactics `omegaContradiction`, `xomega`, and `xomegaContradiction` with `lia` and `extlia`. Turn back on the deprecation warning for uses of `omega`. Make the proof of `Ctypes.sizeof_pos` more robust to variations in `lia`.
Diffstat (limited to 'riscV/SelectLongproof.v')
-rw-r--r--riscV/SelectLongproof.v6
1 files changed, 3 insertions, 3 deletions
diff --git a/riscV/SelectLongproof.v b/riscV/SelectLongproof.v
index 78a1935d..3794e050 100644
--- a/riscV/SelectLongproof.v
+++ b/riscV/SelectLongproof.v
@@ -502,8 +502,8 @@ Proof.
assert (LTU2: Int.ltu (Int.sub Int64.iwordsize' n) Int64.iwordsize' = true).
{ unfold Int.ltu; apply zlt_true.
unfold Int.sub. change (Int.unsigned Int64.iwordsize') with 64.
- rewrite Int.unsigned_repr. omega.
- assert (64 < Int.max_unsigned) by reflexivity. omega. }
+ rewrite Int.unsigned_repr. lia.
+ assert (64 < Int.max_unsigned) by reflexivity. lia. }
assert (X: eval_expr ge sp e m le
(Eop (Oshrlimm (Int.repr (Int64.zwordsize - 1))) (a ::: Enil))
(Vlong (Int64.shr' i (Int.repr (Int64.zwordsize - 1))))).
@@ -514,7 +514,7 @@ Proof.
TrivialExists.
constructor. EvalOp. simpl; eauto. constructor.
simpl. unfold Int.ltu; rewrite zlt_true. rewrite Int64.shrx'_shr_2 by auto. reflexivity.
- change (Int.unsigned Int64.iwordsize') with 64; omega.
+ change (Int.unsigned Int64.iwordsize') with 64; lia.
*)
Qed.