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| author | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2019-09-02 18:30:25 +0200 |
|---|---|---|
| committer | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2019-09-02 18:30:25 +0200 |
| commit | 71c58a8d494eafd847776446b0c246229b2bc9cf (patch) | |
| tree | 7570087588f24b3b340baeed5871b398bf7fc390 /backend/Unusedglobproof.v | |
| parent | dc8b24fa2dd7ede561dd75458899cf42e9be09d2 (diff) | |
| download | compcert-kvx-71c58a8d494eafd847776446b0c246229b2bc9cf.tar.gz compcert-kvx-71c58a8d494eafd847776446b0c246229b2bc9cf.zip | |
avancement (il faut utiliser Vundef visiblement)
Diffstat (limited to 'backend/Unusedglobproof.v')
| -rw-r--r-- | backend/Unusedglobproof.v | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/backend/Unusedglobproof.v b/backend/Unusedglobproof.v index 680daba7..fa120b6d 100644 --- a/backend/Unusedglobproof.v +++ b/backend/Unusedglobproof.v @@ -915,7 +915,7 @@ Proof. /\ Val.inject j a ta). { apply eval_addressing_inj with (ge1 := ge) (sp1 := Vptr sp0 Ptrofs.zero) (vl1 := rs##args). intros. apply symbol_address_inject. eapply match_stacks_preserves_globals; eauto. - apply KEPT. red. exists pc, (Iload chunk addr args dst pc'); auto. + apply KEPT. red. exists pc, (Iload trap chunk addr args dst pc'); auto. econstructor; eauto. apply regs_inject; auto. assumption. } @@ -924,6 +924,36 @@ Proof. econstructor; split. eapply exec_Iload; eauto. econstructor; eauto. apply set_reg_inject; auto. +- (* load notrap1 *) + assert (eval_addressing tge (Vptr tsp Ptrofs.zero) addr trs##args = None). + { eapply eval_addressing_inj_none. + intros. apply symbol_address_inject. eapply match_stacks_preserves_globals; eauto. + apply KEPT. red. exists pc, (Iload NOTRAP chunk addr args dst pc'); auto. + econstructor; eauto. + rewrite Ptrofs.add_zero; reflexivity. + apply regs_inject; auto. + eassumption. + assumption. } + + econstructor; split. eapply exec_Iload_notrap1; eauto. + econstructor; eauto. apply set_reg_inject; auto. + +- (* load notrap2 *) + assert (A: exists ta, + eval_addressing tge (Vptr tsp Ptrofs.zero) addr trs##args = Some ta + /\ Val.inject j a ta). + { apply eval_addressing_inj with (ge1 := ge) (sp1 := Vptr sp0 Ptrofs.zero) (vl1 := rs##args). + intros. apply symbol_address_inject. eapply match_stacks_preserves_globals; eauto. + apply KEPT. red. exists pc, (Iload NOTRAP chunk addr args dst pc'); auto. + econstructor; eauto. + apply regs_inject; auto. + assumption. } + destruct A as (ta & B & C). + destruct (Mem.loadv chunk tm ta) eqn:Echunk2. + + econstructor; split. eapply exec_Iload; eauto. + econstructor; eauto. apply set_reg_inject; auto. + + econstructor; split. eapply exec_Iload_notrap2; eauto. + econstructor; eauto. apply set_reg_inject; auto. - (* store *) assert (A: exists ta, eval_addressing tge (Vptr tsp Ptrofs.zero) addr trs##args = Some ta |