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author | Léo Gourdin <leo.gourdin@lilo.org> | 2021-11-02 10:10:34 +0100 |
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committer | Léo Gourdin <leo.gourdin@lilo.org> | 2021-11-02 10:10:34 +0100 |
commit | 173e6c25b2937d6e6941973aa7b116e1d6405513 (patch) | |
tree | e5f63f343a3d1a1341dc2e8a09f6cdb706226de3 /backend/FirstNopproof.v | |
parent | f9e4d91431334d88992e62a232a9e2ff2f6fcdc9 (diff) | |
download | compcert-kvx-173e6c25b2937d6e6941973aa7b116e1d6405513.tar.gz compcert-kvx-173e6c25b2937d6e6941973aa7b116e1d6405513.zip |
Porting the BTL non-trap loads approach to RTL
Diffstat (limited to 'backend/FirstNopproof.v')
-rw-r--r-- | backend/FirstNopproof.v | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/backend/FirstNopproof.v b/backend/FirstNopproof.v index 5a1c5acf..b0cf0879 100644 --- a/backend/FirstNopproof.v +++ b/backend/FirstNopproof.v @@ -178,23 +178,28 @@ Proof. apply eval_operation_preserved. apply symbols_preserved. + constructor; auto with firstnop. - - left. econstructor. split. - + eapply plus_one. eapply exec_Iload with (v:=v); eauto with firstnop. - all: rewrite <- H0. - all: auto using eval_addressing_preserved, symbols_preserved. - + constructor; auto with firstnop. - - left. econstructor. split. - + eapply plus_one. eapply exec_Iload_notrap1; eauto with firstnop. - all: rewrite <- H0; - apply eval_addressing_preserved; - apply symbols_preserved. - + constructor; auto with firstnop. - - left. econstructor. split. - + eapply plus_one. eapply exec_Iload_notrap2; eauto with firstnop. - all: rewrite <- H0; - apply eval_addressing_preserved; - apply symbols_preserved. - + constructor; auto with firstnop. + - left. inv H0. + + econstructor. split. + * eapply plus_one. eapply exec_Iload with (v:=v); eauto with firstnop. + eapply has_loaded_normal; eauto. + all: rewrite <- EVAL. + all: auto using eval_addressing_preserved, symbols_preserved. + * constructor; auto with firstnop. + + destruct (eval_addressing) eqn:EVAL in LOAD. + * specialize (LOAD v). econstructor; split. + -- eapply plus_one. eapply exec_Iload; eauto with firstnop. + eapply has_loaded_default; eauto. + all: + rewrite eval_addressing_preserved with (ge1:=ge); [| apply symbols_preserved]; + intros a EVAL'; rewrite EVAL in EVAL'; inv EVAL'; apply LOAD; auto. + -- constructor; auto with firstnop. + * econstructor; split. + -- eapply plus_one. eapply exec_Iload; eauto with firstnop. + eapply has_loaded_default; eauto. + all: + rewrite eval_addressing_preserved with (ge1:=ge); [| apply symbols_preserved]; + intros a EVAL'; rewrite EVAL in EVAL'; inv EVAL'; apply LOAD; auto. + -- constructor; auto with firstnop. - left. econstructor. split. + eapply plus_one. eapply exec_Istore; eauto with firstnop. all: rewrite <- H0; |