data_create3.v

Require Import CodeProofDeps.
Require Import Ident.
Require Import Constants.
Require Import RData.
Require Import EventReplay.
Require Import MoverTypes.
Require Import CommonLib.
Require Import TableDataOpsRef2.Spec.
Require Import TableDataOpsIntro.Spec.
Require Import TableDataOpsRef2.Layer.
Require Import TableDataOpsRef3.Code.data_create3.

Require Import TableDataOpsRef3.LowSpecs.data_create3.

Local Open Scope Z_scope.

Section CodeProof.

  Context `{real_params: RealParams}.
  Context {memb} `{Hmemx: Mem.MemoryModelX memb}.
  Context `{Hmwd: UseMemWithData memb}.

  Let mem := mwd (cdata RData).

  Context `{Hstencil: Stencil}.
  Context `{make_program_ops: !MakeProgramOps Clight.function type Clight.fundef type}.
  Context `{Hmake_program: !MakeProgram Clight.function type Clight.fundef type}.

  Let L : compatlayer (cdata RData) :=
    _data_create2 ↦ gensem data_create2_spec
      ⊕ _data_create ↦ gensem data_create_spec
  .

  Local Instance: ExternalCallsOps mem := CompatExternalCalls.compatlayer_extcall_ops L.
  Local Instance: CompilerConfigOps mem := CompatExternalCalls.compatlayer_compiler_config_ops L.

  Section BodyProof.

    Context `{Hwb: WritableBlockOps}.
    Variable (sc: stencil).
    Variables (ge: genv) (STENCIL_MATCHES: stencil_matches sc ge).

    Variable b_data_create2: block.
    Hypothesis h_data_create2_s : Genv.find_symbol ge _data_create2 = Some b_data_create2.
    Hypothesis h_data_create2_p : Genv.find_funct_ptr ge b_data_create2
                                  = Some (External (EF_external _data_create2
                                                   (signature_of_type (Tcons Tptr (Tcons tulong (Tcons tulong (Tcons Tptr (Tcons Tptr Tnil))))) tulong cc_default))
                                         (Tcons Tptr (Tcons tulong (Tcons tulong (Tcons Tptr (Tcons Tptr Tnil))))) tulong cc_default).
    Local Opaque data_create2_spec.

    Variable b_data_create: block.
    Hypothesis h_data_create_s : Genv.find_symbol ge _data_create = Some b_data_create.
    Hypothesis h_data_create_p : Genv.find_funct_ptr ge b_data_create
                                 = Some (External (EF_external _data_create
                                                  (signature_of_type (Tcons Tptr (Tcons tulong (Tcons tulong (Tcons Tptr (Tcons Tptr Tnil))))) tulong cc_default))
                                        (Tcons Tptr (Tcons tulong (Tcons tulong (Tcons Tptr (Tcons Tptr Tnil))))) tulong cc_default).
    Local Opaque data_create_spec.

    Lemma data_create3_body_correct:
      forall m d d' env le g_rd_base g_rd_offset data_addr map_addr g_data_base g_data_offset g_src_base g_src_offset res
             (Henv: env = PTree.empty _)
             (Hinv: high_level_invariant d)
             (HPTg_rd: PTree.get _g_rd le = Some (Vptr g_rd_base (Int.repr g_rd_offset)))
             (HPTdata_addr: PTree.get _data_addr le = Some (Vlong data_addr))
             (HPTmap_addr: PTree.get _map_addr le = Some (Vlong map_addr))
             (HPTg_data: PTree.get _g_data le = Some (Vptr g_data_base (Int.repr g_data_offset)))
             (HPTg_src: PTree.get _g_src le = Some (Vptr g_src_base (Int.repr g_src_offset)))
             (Hspec: data_create3_spec0 (g_rd_base, g_rd_offset) (VZ64 (Int64.unsigned data_addr)) (VZ64 (Int64.unsigned map_addr)) (g_data_base, g_data_offset) (g_src_base, g_src_offset) d = Some (d', VZ64 (Int64.unsigned res))),
           exists le', (exec_stmt ge env le ((m, d): mem) data_create3_body E0 le' (m, d') (Out_return (Some (Vlong res, tulong)))).
    Proof.
      solve_code_proof Hspec data_create3_body; eexists; solve_proof_low.
    Qed.

  End BodyProof.

End CodeProof.