val of_reg (r: MS.reg_64) : option (IX64.reg_nat 3)
let of_reg (r:MS.reg_64) : option (IX64.reg_nat 3) = match r with
  | 12 -> Some 0 // r12
  | 4 -> Some 1 // rsi
  | 5 -> Some 2 // rdi
  | _ -> None
val of_reg (r: MS.reg_64) : option (IX64.reg_nat 3)
let of_reg (r: MS.reg_64) : option (IX64.reg_nat 3) =
match r with
| 12 -> Some 0
| 4 -> Some 1
| 5 -> Some 2
| _ -> None
Vale.Inline.X64.Fsqr_inline.fst.checked
Vale.X64.State.fsti.checked Vale.X64.Print_Inline_s.fst.checked Vale.X64.MemoryAdapters.fsti.checked Vale.X64.Memory.fsti.checked Vale.X64.Machine_s.fst.checked Vale.X64.Decls.fsti.checked Vale.Interop.X64.fsti.checked Vale.Interop.Base.fst.checked Vale.Interop.Assumptions.fst.checked Vale.Def.Types_s.fst.checked Vale.Curve25519.X64.FastWide.fsti.checked Vale.Curve25519.X64.FastUtil.fsti.checked Vale.Curve25519.X64.FastHybrid.fsti.checked Vale.AsLowStar.Wrapper.fsti.checked Vale.AsLowStar.ValeSig.fst.checked Vale.AsLowStar.MemoryHelpers.fsti.checked Vale.AsLowStar.LowStarSig.fst.checked prims.fst.checked LowStar.BufferView.Down.fsti.checked LowStar.Buffer.fst.checked FStar.UInt64.fsti.checked FStar.Pervasives.Native.fst.checked FStar.Pervasives.fsti.checked FStar.Mul.fst.checked FStar.List.fst.checked FStar.HyperStack.ST.fsti.checked FStar.HyperStack.fst.checked FStar.All.fst.checked
Vale.Inline.X64.Fsqr_inline.fst
Vale.X64.Machine_s.reg_64 FStar.Pervasives.Native.Some Vale.Interop.X64.reg_nat Prims.int FStar.Pervasives.Native.None FStar.Pervasives.Native.option
module Vale.Inline.X64.Fsqr_inline

open FStar.Mul
open FStar.HyperStack.ST
module HS = FStar.HyperStack
module B = LowStar.Buffer
module DV = LowStar.BufferView.Down
open Vale.Def.Types_s

open Vale.Interop.Base
module IX64 = Vale.Interop.X64
module VSig = Vale.AsLowStar.ValeSig
module LSig = Vale.AsLowStar.LowStarSig
module ME = Vale.X64.Memory
module V = Vale.X64.Decls
module IA = Vale.Interop.Assumptions
module W = Vale.AsLowStar.Wrapper
open Vale.X64.MemoryAdapters
module VS = Vale.X64.State
module MS = Vale.X64.Machine_s
open Vale.AsLowStar.MemoryHelpers
module PR = Vale.X64.Print_Inline_s

module FU = Vale.Curve25519.X64.FastUtil
module FH = Vale.Curve25519.X64.FastHybrid
module FW = Vale.Curve25519.X64.FastWide

let uint64 = UInt64.t

(* A little utility to trigger normalization in types *)
let as_t (#a:Type) (x:normal a) : a = x
let as_normal_t (#a:Type) (x:a) : normal a = x

[@__reduce__]
let b64 = buf_t TUInt64 TUInt64
[@__reduce__]
let t64_mod = TD_Buffer TUInt64 TUInt64 default_bq
[@__reduce__]
let t64_no_mod = TD_Buffer TUInt64 TUInt64 ({modified=false; strict_disjointness=false; taint=MS.Secret})
[@__reduce__]
let tuint64 = TD_Base TUInt64

[@__reduce__]
let fsqr_dom: IX64.arity_ok 3 td =
  let y = [t64_mod; t64_no_mod; t64_mod] in
  assert_norm (List.length y = 3);
  y

(* Need to rearrange the order of arguments *)
[@__reduce__]
let fsqr_pre : VSig.vale_pre fsqr_dom =
  fun (c:V.va_code)
    (out:b64)
    (f1:b64)
    (tmp:b64)
    (va_s0:V.va_state) ->
      FW.va_req_Fsqr c va_s0
        (as_vale_buffer tmp) (as_vale_buffer f1) (as_vale_buffer out)

[@__reduce__]
let fsqr_post : VSig.vale_post fsqr_dom =
  fun (c:V.va_code)
    (out:b64)
    (f1:b64)
    (tmp:b64)
    (va_s0:V.va_state)
    (va_s1:V.va_state)
    (f:V.va_fuel) ->
      FW.va_ens_Fsqr c va_s0 (as_vale_buffer tmp) (as_vale_buffer f1) (as_vale_buffer out) va_s1 f

let fsqr_regs_modified: MS.reg_64 -> bool = fun (r:MS.reg_64) ->
  let open MS in
  if r = rRax || r = rRbx || r = rRcx || r = rRdx || r = rRdi || r = rRsi || r = rR8 || r = rR9 || r = rR10 || r = rR11 || r = rR13 || r = rR14 || r = rR15 then true
  else false

let fsqr_xmms_modified = fun _ -> false

#set-options "--z3rlimit 200 --max_fuel 0 --max_ifuel 0"

[@__reduce__]
let fsqr_lemma'
    (code:V.va_code)
    (_win:bool)
    (out:b64)
    (f1:b64)
    (tmp:b64)
    (va_s0:V.va_state)
 : Ghost (V.va_state & V.va_fuel)
     (requires
       fsqr_pre code out f1 tmp va_s0)
     (ensures (fun (va_s1, f) ->
       V.eval_code code va_s0 f va_s1 /\
       VSig.vale_calling_conventions va_s0 va_s1 fsqr_regs_modified fsqr_xmms_modified /\
       fsqr_post code out f1 tmp va_s0 va_s1 f /\
       ME.buffer_readable (VS.vs_get_vale_heap va_s1) (as_vale_buffer out) /\
       ME.buffer_readable (VS.vs_get_vale_heap va_s1) (as_vale_buffer f1) /\
       ME.buffer_readable (VS.vs_get_vale_heap va_s1) (as_vale_buffer tmp) /\
       ME.buffer_writeable (as_vale_buffer out) /\
       ME.buffer_writeable (as_vale_buffer f1) /\
       ME.buffer_writeable (as_vale_buffer tmp) /\
       ME.modifies (ME.loc_union (ME.loc_buffer (as_vale_buffer out))
                   (ME.loc_union (ME.loc_buffer (as_vale_buffer tmp))
                                 ME.loc_none)) (VS.vs_get_vale_heap va_s0) (VS.vs_get_vale_heap va_s1)
 )) =
   let va_s1, f = FW.va_lemma_Fsqr code va_s0 (as_vale_buffer tmp) (as_vale_buffer f1) (as_vale_buffer out) in
   Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt64 ME.TUInt64 out;
   Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt64 ME.TUInt64 f1;
   Vale.AsLowStar.MemoryHelpers.buffer_writeable_reveal ME.TUInt64 ME.TUInt64 tmp;
   (va_s1, f)

(* Prove that fsqr_lemma' has the required type *)
let fsqr_lemma = as_t #(VSig.vale_sig fsqr_regs_modified fsqr_xmms_modified fsqr_pre fsqr_post) fsqr_lemma'
let code_Fsqr = FW.va_code_Fsqr ()
val of_reg (r: MS.reg_64) : option (IX64.reg_nat 3)
r: Vale.X64.Machine_s.reg_64 -> FStar.Pervasives.Native.option (Vale.Interop.X64.reg_nat 3)