diff options
Diffstat (limited to 'backend/Allnontrapproof.v')
| -rw-r--r-- | backend/Allnontrapproof.v | 38 |
1 files changed, 21 insertions, 17 deletions
diff --git a/backend/Allnontrapproof.v b/backend/Allnontrapproof.v index 157c5de2..f3b10600 100644 --- a/backend/Allnontrapproof.v +++ b/backend/Allnontrapproof.v @@ -111,6 +111,8 @@ Inductive match_states: RTL.state -> RTL.state -> Prop := match_states (Returnstate stk v m) (Returnstate stk' v m). +(*Lemma load_notrap_simu_correct:*) + Lemma step_simulation: forall S1 t S2, RTL.step ge S1 t S2 -> forall S1', match_states S1 S1' -> @@ -126,23 +128,25 @@ Proof. rewrite <- H0. apply eval_operation_preserved. exact symbols_preserved. constructor; auto. (* load *) -- econstructor; split. - assert (eval_addressing tge sp addr rs ## args = Some a). - rewrite <- H0. apply eval_addressing_preserved. exact symbols_preserved. - eapply exec_Iload; eauto. - constructor; auto. -- (* load notrap1 *) - econstructor; split. - assert (eval_addressing tge sp addr rs ## args = None). - rewrite <- H0. apply eval_addressing_preserved. exact symbols_preserved. - eapply exec_Iload_notrap1; eauto. - constructor; auto. -- (* load notrap2 *) - econstructor; split. - assert (eval_addressing tge sp addr rs ## args = Some a). - rewrite <- H0. apply eval_addressing_preserved. exact symbols_preserved. - eapply exec_Iload_notrap2; eauto. - constructor; auto. +- inv H0. + + econstructor; split. + assert (eval_addressing tge sp addr rs ## args = Some a). + rewrite <- EVAL. apply eval_addressing_preserved. exact symbols_preserved. + eapply exec_Iload; eauto. eapply has_loaded_normal; eauto. + constructor; auto. + + destruct (eval_addressing) eqn:EVAL in LOAD. + * specialize (LOAD v). econstructor; split. + assert (eval_addressing tge sp addr rs ## args = Some v). + rewrite <- EVAL. apply eval_addressing_preserved. exact symbols_preserved. + eapply exec_Iload; eauto. eapply has_loaded_default; eauto. + intros a EVAL'; rewrite H0 in EVAL'; inv EVAL'. apply LOAD; auto. + constructor; auto. + * econstructor; split. + assert (eval_addressing tge sp addr rs ## args = None). + rewrite <- EVAL. apply eval_addressing_preserved. exact symbols_preserved. + eapply exec_Iload; eauto. eapply has_loaded_default; eauto. + intros a EVAL'; rewrite H0 in EVAL'; inv EVAL'. + constructor; auto. - (* store *) econstructor; split. assert (eval_addressing tge sp addr rs ## args = Some a). |