Changeset 1410 for src/Clight
 Timestamp:
 Oct 19, 2011, 11:54:13 AM (10 years ago)
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 1 edited
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src/Clight/CexecSound.ma
r1350 r1410 1 1 include "Clight/Cexec.ma". 2 2 3 (*include "Plogic/connectives.ma".*)4 5 (* Is rather careful about using destruct because it currently uses excessive6 normalization. *)7 3 lemma exec_bool_of_val_sound: ∀v,ty,r. 8 4 exec_bool_of_val v ty = OK ? r → bool_of_val v ty (of_bool r). … … 15 11  *; whd @eq_bv_elim 16 12 [ #E1 #E2 destruct @bool_of_val_false @is_false_int 17  #E1 #E2 >(?:r=¬false) [ @bool_of_val_true @is_true_int_int @E1  destruct @refl ]13  #E1 #E2 destruct @bool_of_val_true @is_true_int_int @E1 18 14 ] 19 15 ] 20 16  8: #H cases (eq_dec f Fzero) 21 17 [ #e >e in H ⊢ % >Feq_zero_true #E destruct @bool_of_val_false @is_false_float 22  #ne >Feq_zero_false in H // #E >(?:r=¬false) [ @bool_of_val_true @is_true_float @ne  destruct @refl ]23 ] 24  14: #H >(?:r=false) [ @bool_of_val_false @is_false_pointer  destruct @refl ]25  15: #H >(?:r=true) [ @bool_of_val_true @is_true_pointer_pointer  destruct @refl ]18  #ne >Feq_zero_false in H // #E destruct @bool_of_val_true @is_true_float @ne 19 ] 20  14: #H destruct @bool_of_val_false @is_false_pointer 21  15: #H destruct @bool_of_val_true @is_true_pointer_pointer 26 22  *: #H destruct 27 23 ] qed. 28 24 29 25 lemma bool_val_distinct: Vtrue ≠ Vfalse. 30 % #H whd in H:(??%%); (*Wilmer: XXX*) cases daemon (*destruct; @(absurd ? e0 one_not_zero)*)26 % normalize #H destruct 31 27 qed. 32 28 … … 50 46 qed. 51 47 52 axiomexec_cast_sound : ∀m:mem. ∀v:val. ∀ty:type. ∀ty':type. ∀v':val. exec_cast m v ty ty' = OK ? v' → cast m v ty ty' v'.53 (*Wilmer: XXXX#m #v #ty #ty' #v'48 lemma exec_cast_sound : ∀m:mem. ∀v:val. ∀ty:type. ∀ty':type. ∀v':val. exec_cast m v ty ty' = OK ? v' → cast m v ty ty' v'. 49 #m #v #ty #ty' #v' 54 50 cases v; 55 51 [ #H whd in H:(??%?); destruct; … … 122 118 ] 123 119 ] 124 ] qed. *)120 ] qed. 125 121 126 122 let rec expr_lvalue_ind … … 194 190 (P_res ? (λx.eval_expr ge en m e (\fst x) (\snd x)) (exec_expr ge en m e)). 195 191 #ge #en #m #e @(expr_lvalue_ind ? (λe',ty.P_res ? (λr.eval_lvalue ge en m (Expr e' ty) (\fst (\fst r)) (\snd (\fst r)) (\snd r)) (exec_lvalue' ge en m e' ty)) … e) 196 (* XXX // fails [ 1,2: #ty #c whd // *)197 192 [ #sz #ty #c whd in ⊢ (???%) cases ty try #sz' try #sg try #x try @I whd in ⊢ (???%) 198 193 @eq_intsize_elim #E try @I <E whd % 199  #ty #c whd %2194  #ty #c whd // 200 195 (* expressions that are lvalues *) 201 196  #e' #ty cases e'; //; [ #i #He'  #e #He'  #e #i #He' ] whd in He' ⊢ %; … … 263 258 [ @(bool_of … Hb1)  @(exec_bool_of_val_sound … eb2) ] 264 259 ] 265  #ty #ty' cases ty try #sz try #sg try #x try @I whd; (* XXX //*) @eval_Esizeof260  #ty #ty' cases ty try #sz try #sg try #x // 266 261  #ty #e' #ty' #i cases ty'; //; 267 262 [ #id #fs #He' @bind2_OK #x cases x; #sp #l #ofs #H … … 337 332 lemma exec_exprlist_sound: ∀ge,e,m,l. P_res ? (λvltr:list val×trace. eval_exprlist ge e m l (\fst vltr) (\snd vltr)) (exec_exprlist ge e m l). 338 333 #ge #e #m #l elim l; 339 whd ; (* XXX //; *)334 whd 340 335 [ % 341 336  #e1 #es #IH … … 402 397 //; #H whd; 403 398 @step_skip_call //; 404  #s' #k' whd; (* XXX //; *) @step_skip_seq399  #s' #k' whd; // 405 400  #ex #s' #k' @step_skip_or_continue_while % //; 406 401  #ex #s' #k' … … 442 437 whd; @(step_call_some … (exec_lvalue_sound' … Hlocofs) Hvf Hvargs efd ety) 443 438 ] 444  #s1 #s2 whd; (* XXX //; *) @step_seq439  #s1 #s2 // 445 440  #ex #s1 #s2 446 441 @res_bindIO2_OK #v #tr #Hv … … 459 454  @(step_while_false … (exec_expr_sound' … Hv)) @(bool_of … Hb) 460 455 ] 461  #ex #s' whd; (* XXX //; *) @step_dowhile456  #ex #s' // 462 457  #s1 #ex #s2 #s3 whd in ⊢ (?????%); elim (is_Sskip s1); #Hs1 whd in ⊢ (?????%); 463 458 [ >Hs1 … … 495 490  #ex #ls @res_bindIO2_OK * // #sz #n #tr #Hv 496 491 @step_switch @(exec_expr_sound' … Hv) 497  #l #s' whd; @step_label (* XXX //; *)492  #l #s' // 498 493  #l whd in ⊢ (?????%); lapply (refl ? (find_label l (fn_body f) (call_cont k))); 499 494 cases (find_label l (fn_body f) (call_cont k)) in ⊢ (???% → %); //; 500 495 #sk cases sk; #s' #k' #H 501 496 @(step_goto … H) 502  #l #s' whd; (* XXX //; *) @step_cost497  #l #s' // 503 498 ] 504 499  #f0 #vargs #k #m whd in ⊢ (?????%); cases f0;
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