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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 /cfrontend/Csem.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 'cfrontend/Csem.v')
-rw-r--r--cfrontend/Csem.v8
1 files changed, 4 insertions, 4 deletions
diff --git a/cfrontend/Csem.v b/cfrontend/Csem.v
index 6d2b470f..4fa70ae2 100644
--- a/cfrontend/Csem.v
+++ b/cfrontend/Csem.v
@@ -839,11 +839,11 @@ Proof.
unfold semantics; intros; red; simpl; intros.
set (ge := globalenv p) in *.
assert (DEREF: forall chunk m b ofs t v, deref_loc ge chunk m b ofs t v -> (length t <= 1)%nat).
- intros. inv H0; simpl; try omega. inv H3; simpl; try omega.
+ intros. inv H0; simpl; try lia. inv H3; simpl; try lia.
assert (ASSIGN: forall chunk m b ofs t v m', assign_loc ge chunk m b ofs v t m' -> (length t <= 1)%nat).
- intros. inv H0; simpl; try omega. inv H3; simpl; try omega.
+ intros. inv H0; simpl; try lia. inv H3; simpl; try lia.
destruct H.
- inv H; simpl; try omega. inv H0; eauto; simpl; try omega.
+ inv H; simpl; try lia. inv H0; eauto; simpl; try lia.
eapply external_call_trace_length; eauto.
- inv H; simpl; try omega. eapply external_call_trace_length; eauto.
+ inv H; simpl; try lia. eapply external_call_trace_length; eauto.
Qed.