val va_wp_Loop_prologue
      (in_b: buffer128)
      (offset: nat)
      (k_b: buffer128)
      (block: block_w)
      (hash_orig: hash256)
      (va_s0: va_state)
      (va_k: (va_state -> unit -> Type0))
    : Type0
let va_wp_Loop_prologue (in_b:buffer128) (offset:nat) (k_b:buffer128) (block:block_w)
  (hash_orig:hash256) (va_s0:va_state) (va_k:(va_state -> unit -> Type0)) : Type0 =
  (va_get_ok va_s0 /\ (let hash = Vale.SHA.PPC64LE.SHA_helpers.repeat_range_vale 0 block hash_orig
    in Vale.PPC64LE.Decls.validSrcAddrsOffset128 (va_get_mem_heaplet 0 va_s0) (va_get_reg 4 va_s0)
    in_b offset 1 (va_get_mem_layout va_s0) Secret /\ Vale.PPC64LE.Decls.validSrcAddrs128
    (va_get_mem_heaplet 0 va_s0) (va_get_reg 6 va_s0) k_b 1 (va_get_mem_layout va_s0) Secret /\
    va_get_reg 4 va_s0 + 16 < pow2_64 /\ va_get_reg 6 va_s0 + 16 < pow2_64 /\ (va_get_vec 23
    va_s0).hi3 == Vale.SHA.PPC64LE.SHA_helpers.word_to_nat32 (FStar.Seq.Base.index
    #Vale.SHA.PPC64LE.SHA_helpers.word hash 7)) /\ (forall (va_x_r4:nat64) (va_x_r6:nat64)
    (va_x_v0:quad32) (va_x_v23:quad32) (va_x_v24:quad32) . let va_sM = va_upd_vec 24 va_x_v24
    (va_upd_vec 23 va_x_v23 (va_upd_vec 0 va_x_v0 (va_upd_reg 6 va_x_r6 (va_upd_reg 4 va_x_r4
    va_s0)))) in va_get_ok va_sM /\ (let ks = Vale.PPC64LE.Decls.buffer128_read k_b 0
    (va_get_mem_heaplet 0 va_sM) in let hash = Vale.SHA.PPC64LE.SHA_helpers.repeat_range_vale 0
    block hash_orig in va_get_vec 0 va_sM == Vale.Def.Types_s.reverse_bytes_quad32
    (Vale.PPC64LE.Decls.buffer128_read in_b offset (va_get_mem_heaplet 0 va_sM)) /\ va_get_reg 4
    va_sM == va_get_reg 4 va_s0 + 16 /\ va_get_reg 6 va_sM == va_get_reg 6 va_s0 + 16 /\
    (va_get_vec 23 va_sM).hi3 == Vale.Arch.Types.add_wrap32
    (Vale.SHA.PPC64LE.SHA_helpers.word_to_nat32 (FStar.Seq.Base.index
    #Vale.SHA.PPC64LE.SHA_helpers.word hash 7)) (Vale.Def.Words_s.__proj__Mkfour__item__lo0 ks) /\
    ((va_get_vec 24 va_sM).hi3 == Vale.Def.Words_s.__proj__Mkfour__item__lo1 ks /\ (va_get_vec 24
    va_sM).hi2 == Vale.Def.Words_s.__proj__Mkfour__item__hi2 ks /\ (va_get_vec 24 va_sM).lo1 ==
    Vale.Def.Words_s.__proj__Mkfour__item__hi3 ks)) ==> va_k va_sM (())))
val va_wp_Loop_prologue
      (in_b: buffer128)
      (offset: nat)
      (k_b: buffer128)
      (block: block_w)
      (hash_orig: hash256)
      (va_s0: va_state)
      (va_k: (va_state -> unit -> Type0))
    : Type0
let va_wp_Loop_prologue
      (in_b: buffer128)
      (offset: nat)
      (k_b: buffer128)
      (block: block_w)
      (hash_orig: hash256)
      (va_s0: va_state)
      (va_k: (va_state -> unit -> Type0))
    : Type0 =
(va_get_ok va_s0 /\
  (let hash = Vale.SHA.PPC64LE.SHA_helpers.repeat_range_vale 0 block hash_orig in
    Vale.PPC64LE.Decls.validSrcAddrsOffset128 (va_get_mem_heaplet 0 va_s0)
      (va_get_reg 4 va_s0)
      in_b
      offset
      1
      (va_get_mem_layout va_s0)
      Secret /\
    Vale.PPC64LE.Decls.validSrcAddrs128 (va_get_mem_heaplet 0 va_s0)
      (va_get_reg 6 va_s0)
      k_b
      1
      (va_get_mem_layout va_s0)
      Secret /\ va_get_reg 4 va_s0 + 16 < pow2_64 /\ va_get_reg 6 va_s0 + 16 < pow2_64 /\
    (va_get_vec 23 va_s0).hi3 ==
    Vale.SHA.PPC64LE.SHA_helpers.word_to_nat32 (FStar.Seq.Base.index #Vale.SHA.PPC64LE.SHA_helpers.word
          hash
          7)) /\
  (forall (va_x_r4: nat64) (va_x_r6: nat64) (va_x_v0: quad32) (va_x_v23: quad32) (va_x_v24: quad32).
      let va_sM =
        va_upd_vec 24
          va_x_v24
          (va_upd_vec 23
              va_x_v23
              (va_upd_vec 0 va_x_v0 (va_upd_reg 6 va_x_r6 (va_upd_reg 4 va_x_r4 va_s0))))
      in
      va_get_ok va_sM /\
      (let ks = Vale.PPC64LE.Decls.buffer128_read k_b 0 (va_get_mem_heaplet 0 va_sM) in
        let hash = Vale.SHA.PPC64LE.SHA_helpers.repeat_range_vale 0 block hash_orig in
        va_get_vec 0 va_sM ==
        Vale.Def.Types_s.reverse_bytes_quad32 (Vale.PPC64LE.Decls.buffer128_read in_b
              offset
              (va_get_mem_heaplet 0 va_sM)) /\ va_get_reg 4 va_sM == va_get_reg 4 va_s0 + 16 /\
        va_get_reg 6 va_sM == va_get_reg 6 va_s0 + 16 /\
        (va_get_vec 23 va_sM).hi3 ==
        Vale.Arch.Types.add_wrap32 (Vale.SHA.PPC64LE.SHA_helpers.word_to_nat32 (FStar.Seq.Base.index
                  #Vale.SHA.PPC64LE.SHA_helpers.word
                  hash
                  7))
          (Vale.Def.Words_s.__proj__Mkfour__item__lo0 ks) /\
        ((va_get_vec 24 va_sM).hi3 == Vale.Def.Words_s.__proj__Mkfour__item__lo1 ks /\
          (va_get_vec 24 va_sM).hi2 == Vale.Def.Words_s.__proj__Mkfour__item__hi2 ks /\
          (va_get_vec 24 va_sM).lo1 == Vale.Def.Words_s.__proj__Mkfour__item__hi3 ks)) ==>
      va_k va_sM (())))
Vale.SHA.PPC64LE.Loop.fst.checked
Vale.SHA2.Wrapper.fsti.checked Vale.SHA.PPC64LE.SHA_helpers.fsti.checked Vale.SHA.PPC64LE.Rounds.fsti.checked Vale.PPC64LE.State.fsti.checked Vale.PPC64LE.Stack_i.fsti.checked Vale.PPC64LE.QuickCodes.fsti.checked Vale.PPC64LE.QuickCode.fst.checked Vale.PPC64LE.Memory.fsti.checked Vale.PPC64LE.Machine_s.fst.checked Vale.PPC64LE.InsVector.fsti.checked Vale.PPC64LE.InsStack.fsti.checked Vale.PPC64LE.InsMem.fsti.checked Vale.PPC64LE.InsBasic.fsti.checked Vale.PPC64LE.Decls.fsti.checked Vale.Def.Words_s.fsti.checked Vale.Def.Words.Seq_s.fsti.checked Vale.Def.Types_s.fst.checked Vale.Def.Opaque_s.fsti.checked Vale.Arch.Types.fsti.checked Vale.Arch.HeapImpl.fsti.checked Spec.SHA2.fsti.checked Spec.Loops.fst.checked Spec.Hash.Definitions.fst.checked Spec.Agile.Hash.fsti.checked prims.fst.checked FStar.Seq.Base.fsti.checked FStar.Seq.fst.checked FStar.Pervasives.Native.fst.checked FStar.Pervasives.fsti.checked
Vale.SHA.PPC64LE.Loop.fst
Vale.PPC64LE.Memory.buffer128 Prims.nat Vale.SHA.PPC64LE.SHA_helpers.block_w Vale.SHA.PPC64LE.SHA_helpers.hash256 Vale.PPC64LE.Decls.va_state Prims.unit Prims.l_and Prims.b2t Vale.PPC64LE.Decls.va_get_ok Vale.PPC64LE.Decls.validSrcAddrsOffset128 Vale.PPC64LE.Decls.va_get_mem_heaplet Vale.PPC64LE.Decls.va_get_reg Vale.PPC64LE.Decls.va_get_mem_layout Vale.Arch.HeapTypes_s.Secret Vale.PPC64LE.Decls.validSrcAddrs128 Prims.op_LessThan Prims.op_Addition Vale.PPC64LE.Machine_s.pow2_64 Prims.eq2 Vale.Def.Words_s.nat32 Vale.Def.Words_s.__proj__Mkfour__item__hi3 Vale.Def.Types_s.nat32 Vale.PPC64LE.Decls.va_get_vec Vale.SHA.PPC64LE.SHA_helpers.word_to_nat32 FStar.Seq.Base.index Vale.SHA.PPC64LE.SHA_helpers.word Vale.SHA.PPC64LE.SHA_helpers.repeat_range_vale Prims.l_Forall Vale.PPC64LE.Memory.nat64 Vale.PPC64LE.Memory.quad32 Prims.l_imp Vale.Def.Types_s.quad32 Vale.Def.Types_s.reverse_bytes_quad32 Vale.PPC64LE.Decls.buffer128_read Prims.int Vale.Arch.Types.add_wrap32 Vale.Def.Words_s.__proj__Mkfour__item__lo0 Vale.Def.Words_s.__proj__Mkfour__item__lo1 Vale.Def.Words_s.__proj__Mkfour__item__hi2 Vale.PPC64LE.Machine_s.state Vale.PPC64LE.Decls.va_upd_vec Vale.PPC64LE.Decls.va_upd_reg
module Vale.SHA.PPC64LE.Loop
open Vale.Def.Opaque_s
open Vale.Def.Types_s
open Vale.Def.Words_s
open Vale.Def.Words.Seq_s
open FStar.Seq
open Vale.Arch.Types
open Vale.Arch.HeapImpl
open Vale.PPC64LE.Machine_s
open Vale.PPC64LE.Memory
open Vale.PPC64LE.Stack_i
open Vale.PPC64LE.State
open Vale.PPC64LE.Decls
open Vale.PPC64LE.QuickCode
open Vale.PPC64LE.QuickCodes
open Vale.PPC64LE.InsBasic
open Vale.PPC64LE.InsMem
open Vale.PPC64LE.InsStack
open Vale.PPC64LE.InsVector
open Vale.SHA.PPC64LE.SHA_helpers
open Spec.SHA2
open Spec.Agile.Hash
open Spec.Hash.Definitions
open Spec.Loops
open Vale.SHA.PPC64LE.Rounds
open Vale.SHA2.Wrapper
#reset-options "--z3rlimit 2000"
//-- Loop_prologue

val va_code_Loop_prologue : va_dummy:unit -> Tot va_code
[@ "opaque_to_smt" va_qattr]
let va_code_Loop_prologue () =
  (va_Block (va_CCons (va_code_Load128_byte16_buffer (va_op_heaplet_mem_heaplet 0)
    (va_op_vec_opr_vec 0) (va_op_reg_opr_reg 4) Secret) (va_CCons (va_code_Load128_word4_buffer
    (va_op_heaplet_mem_heaplet 0) (va_op_vec_opr_vec 24) (va_op_reg_opr_reg 6) Secret) (va_CCons
    (va_code_AddImm (va_op_reg_opr_reg 4) (va_op_reg_opr_reg 4) 16) (va_CCons (va_code_AddImm
    (va_op_reg_opr_reg 6) (va_op_reg_opr_reg 6) 16) (va_CCons (va_code_Vadduwm (va_op_vec_opr_vec
    23) (va_op_vec_opr_vec 23) (va_op_vec_opr_vec 24)) (va_CCons (va_code_Vsldoi (va_op_vec_opr_vec
    24) (va_op_vec_opr_vec 24) (va_op_vec_opr_vec 24) 4) (va_CNil ()))))))))

val va_codegen_success_Loop_prologue : va_dummy:unit -> Tot va_pbool
[@ "opaque_to_smt" va_qattr]
let va_codegen_success_Loop_prologue () =
  (va_pbool_and (va_codegen_success_Load128_byte16_buffer (va_op_heaplet_mem_heaplet 0)
    (va_op_vec_opr_vec 0) (va_op_reg_opr_reg 4) Secret) (va_pbool_and
    (va_codegen_success_Load128_word4_buffer (va_op_heaplet_mem_heaplet 0) (va_op_vec_opr_vec 24)
    (va_op_reg_opr_reg 6) Secret) (va_pbool_and (va_codegen_success_AddImm (va_op_reg_opr_reg 4)
    (va_op_reg_opr_reg 4) 16) (va_pbool_and (va_codegen_success_AddImm (va_op_reg_opr_reg 6)
    (va_op_reg_opr_reg 6) 16) (va_pbool_and (va_codegen_success_Vadduwm (va_op_vec_opr_vec 23)
    (va_op_vec_opr_vec 23) (va_op_vec_opr_vec 24)) (va_pbool_and (va_codegen_success_Vsldoi
    (va_op_vec_opr_vec 24) (va_op_vec_opr_vec 24) (va_op_vec_opr_vec 24) 4) (va_ttrue ())))))))

[@ "opaque_to_smt" va_qattr]
let va_qcode_Loop_prologue (va_mods:va_mods_t) (in_b:buffer128) (offset:nat) (k_b:buffer128)
  (block:block_w) (hash_orig:hash256) : (va_quickCode unit (va_code_Loop_prologue ())) =
  (qblock va_mods (fun (va_s:va_state) -> let (va_old_s:va_state) = va_s in va_QSeq va_range1
    "***** PRECONDITION NOT MET AT line 80 column 26 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (va_quick_Load128_byte16_buffer (va_op_heaplet_mem_heaplet 0) (va_op_vec_opr_vec 0)
    (va_op_reg_opr_reg 4) Secret in_b offset) (va_QSeq va_range1
    "***** PRECONDITION NOT MET AT line 81 column 25 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (va_quick_Load128_word4_buffer (va_op_heaplet_mem_heaplet 0) (va_op_vec_opr_vec 24)
    (va_op_reg_opr_reg 6) Secret k_b 0) (va_QSeq va_range1
    "***** PRECONDITION NOT MET AT line 82 column 11 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (va_quick_AddImm (va_op_reg_opr_reg 4) (va_op_reg_opr_reg 4) 16) (va_QSeq va_range1
    "***** PRECONDITION NOT MET AT line 83 column 11 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (va_quick_AddImm (va_op_reg_opr_reg 6) (va_op_reg_opr_reg 6) 16) (va_QSeq va_range1
    "***** PRECONDITION NOT MET AT line 84 column 12 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (va_quick_Vadduwm (va_op_vec_opr_vec 23) (va_op_vec_opr_vec 23) (va_op_vec_opr_vec 24))
    (va_QSeq va_range1
    "***** PRECONDITION NOT MET AT line 85 column 11 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (va_quick_Vsldoi (va_op_vec_opr_vec 24) (va_op_vec_opr_vec 24) (va_op_vec_opr_vec 24) 4)
    (va_QEmpty (())))))))))


val va_lemma_Loop_prologue : va_b0:va_code -> va_s0:va_state -> in_b:buffer128 -> offset:nat ->
  k_b:buffer128 -> block:block_w -> hash_orig:hash256
  -> Ghost (va_state & va_fuel)
  (requires (va_require_total va_b0 (va_code_Loop_prologue ()) va_s0 /\ va_get_ok va_s0 /\ (let
    hash = Vale.SHA.PPC64LE.SHA_helpers.repeat_range_vale 0 block hash_orig in
    Vale.PPC64LE.Decls.validSrcAddrsOffset128 (va_get_mem_heaplet 0 va_s0) (va_get_reg 4 va_s0)
    in_b offset 1 (va_get_mem_layout va_s0) Secret /\ Vale.PPC64LE.Decls.validSrcAddrs128
    (va_get_mem_heaplet 0 va_s0) (va_get_reg 6 va_s0) k_b 1 (va_get_mem_layout va_s0) Secret /\
    va_get_reg 4 va_s0 + 16 < pow2_64 /\ va_get_reg 6 va_s0 + 16 < pow2_64 /\ (va_get_vec 23
    va_s0).hi3 == Vale.SHA.PPC64LE.SHA_helpers.word_to_nat32 (FStar.Seq.Base.index
    #Vale.SHA.PPC64LE.SHA_helpers.word hash 7))))
  (ensures (fun (va_sM, va_fM) -> va_ensure_total va_b0 va_s0 va_sM va_fM /\ va_get_ok va_sM /\
    (let ks = Vale.PPC64LE.Decls.buffer128_read k_b 0 (va_get_mem_heaplet 0 va_sM) in let hash =
    Vale.SHA.PPC64LE.SHA_helpers.repeat_range_vale 0 block hash_orig in va_get_vec 0 va_sM ==
    Vale.Def.Types_s.reverse_bytes_quad32 (Vale.PPC64LE.Decls.buffer128_read in_b offset
    (va_get_mem_heaplet 0 va_sM)) /\ va_get_reg 4 va_sM == va_get_reg 4 va_s0 + 16 /\ va_get_reg 6
    va_sM == va_get_reg 6 va_s0 + 16 /\ (va_get_vec 23 va_sM).hi3 == Vale.Arch.Types.add_wrap32
    (Vale.SHA.PPC64LE.SHA_helpers.word_to_nat32 (FStar.Seq.Base.index
    #Vale.SHA.PPC64LE.SHA_helpers.word hash 7)) (Vale.Def.Words_s.__proj__Mkfour__item__lo0 ks) /\
    ((va_get_vec 24 va_sM).hi3 == Vale.Def.Words_s.__proj__Mkfour__item__lo1 ks /\ (va_get_vec 24
    va_sM).hi2 == Vale.Def.Words_s.__proj__Mkfour__item__hi2 ks /\ (va_get_vec 24 va_sM).lo1 ==
    Vale.Def.Words_s.__proj__Mkfour__item__hi3 ks)) /\ va_state_eq va_sM (va_update_vec 24 va_sM
    (va_update_vec 23 va_sM (va_update_vec 0 va_sM (va_update_reg 6 va_sM (va_update_reg 4 va_sM
    (va_update_ok va_sM va_s0))))))))
[@"opaque_to_smt"]
let va_lemma_Loop_prologue va_b0 va_s0 in_b offset k_b block hash_orig =
  let (va_mods:va_mods_t) = [va_Mod_vec 24; va_Mod_vec 23; va_Mod_vec 0; va_Mod_reg 6; va_Mod_reg
    4; va_Mod_ok] in
  let va_qc = va_qcode_Loop_prologue va_mods in_b offset k_b block hash_orig in
  let (va_sM, va_fM, va_g) = va_wp_sound_code_norm (va_code_Loop_prologue ()) va_qc va_s0 (fun
    va_s0 va_sM va_g -> let () = va_g in label va_range1
    "***** POSTCONDITION NOT MET AT line 56 column 1 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (va_get_ok va_sM) /\ label va_range1
    "***** POSTCONDITION NOT MET AT line 72 column 9 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (let ks = Vale.PPC64LE.Decls.buffer128_read k_b 0 (va_get_mem_heaplet 0 va_sM) in label
    va_range1
    "***** POSTCONDITION NOT MET AT line 73 column 9 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (let hash = Vale.SHA.PPC64LE.SHA_helpers.repeat_range_vale 0 block hash_orig in label va_range1
    "***** POSTCONDITION NOT MET AT line 74 column 74 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (va_get_vec 0 va_sM == Vale.Def.Types_s.reverse_bytes_quad32 (Vale.PPC64LE.Decls.buffer128_read
    in_b offset (va_get_mem_heaplet 0 va_sM))) /\ label va_range1
    "***** POSTCONDITION NOT MET AT line 75 column 29 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (va_get_reg 4 va_sM == va_get_reg 4 va_s0 + 16) /\ label va_range1
    "***** POSTCONDITION NOT MET AT line 76 column 29 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    (va_get_reg 6 va_sM == va_get_reg 6 va_s0 + 16) /\ label va_range1
    "***** POSTCONDITION NOT MET AT line 77 column 71 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    ((va_get_vec 23 va_sM).hi3 == Vale.Arch.Types.add_wrap32
    (Vale.SHA.PPC64LE.SHA_helpers.word_to_nat32 (FStar.Seq.Base.index
    #Vale.SHA.PPC64LE.SHA_helpers.word hash 7)) (Vale.Def.Words_s.__proj__Mkfour__item__lo0 ks)) /\
    label va_range1
    "***** POSTCONDITION NOT MET AT line 78 column 65 of file /home/gebner/everest/hacl-star/vale/code/thirdPartyPorts/OpenSSL/sha/Vale.SHA.PPC64LE.Loop.vaf *****"
    ((va_get_vec 24 va_sM).hi3 == Vale.Def.Words_s.__proj__Mkfour__item__lo1 ks /\ (va_get_vec 24
    va_sM).hi2 == Vale.Def.Words_s.__proj__Mkfour__item__hi2 ks /\ (va_get_vec 24 va_sM).lo1 ==
    Vale.Def.Words_s.__proj__Mkfour__item__hi3 ks)))) in
  assert_norm (va_qc.mods == va_mods);
  va_lemma_norm_mods ([va_Mod_vec 24; va_Mod_vec 23; va_Mod_vec 0; va_Mod_reg 6; va_Mod_reg 4;
    va_Mod_ok]) va_sM va_s0;
  (va_sM, va_fM)

[@ va_qattr]
let va_wp_Loop_prologue (in_b:buffer128) (offset:nat) (k_b:buffer128) (block:block_w)
val va_wp_Loop_prologue
      (in_b: buffer128)
      (offset: nat)
      (k_b: buffer128)
      (block: block_w)
      (hash_orig: hash256)
      (va_s0: va_state)
      (va_k: (va_state -> unit -> Type0))
    : Type0

    in_b: Vale.PPC64LE.Memory.buffer128 ->
    offset: Prims.nat ->
    k_b: Vale.PPC64LE.Memory.buffer128 ->
    block: Vale.SHA.PPC64LE.SHA_helpers.block_w ->
    hash_orig: Vale.SHA.PPC64LE.SHA_helpers.hash256 ->
    va_s0: Vale.PPC64LE.Decls.va_state ->
    va_k: (_: Vale.PPC64LE.Decls.va_state -> _: Prims.unit -> Type0)
  -> Type0