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;; PowerPC paired single and double hummer description
;; Copyright (C) 2007, 2009
;; Free Software Foundation, Inc.
;; Contributed by David Edelsohn <edelsohn@gnu.org> and Revital Eres
;; <eres@il.ibm.com>

;; This file is part of GCC.

;; GCC is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published
;; by the Free Software Foundation; either version 3, or (at your
;; option) any later version.

;; GCC is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
;; License for more details.
;; 
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING3.  If not see
;; <http://www.gnu.org/licenses/>.

(define_constants
[(UNSPEC_INTERHI_V2SF     330)
 (UNSPEC_INTERLO_V2SF     331)
 (UNSPEC_EXTEVEN_V2SF     332)
 (UNSPEC_EXTODD_V2SF      333)
])

(define_insn "paired_negv2sf2"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (neg:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT"
  "ps_neg %0,%1"
  [(set_attr "type" "fp")])

(define_insn "sqrtv2sf2"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (sqrt:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT"
  "ps_rsqrte %0,%1"
  [(set_attr "type" "fp")])

(define_insn "paired_absv2sf2"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (abs:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT"
  "ps_abs %0,%1"
  [(set_attr "type" "fp")])

(define_insn "nabsv2sf2"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (neg:V2SF (abs:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "f"))))]
  "TARGET_PAIRED_FLOAT"
  "ps_nabs %0,%1"
  [(set_attr "type" "fp")])

(define_insn "paired_addv2sf3"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (plus:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "%f")
                   (match_operand:V2SF 2 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT"
  "ps_add %0,%1,%2"
  [(set_attr "type" "fp")])

(define_insn "paired_subv2sf3"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (minus:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                    (match_operand:V2SF 2 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT"
  "ps_sub %0,%1,%2"
  [(set_attr "type" "fp")])

(define_insn "paired_mulv2sf3"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (mult:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "%f")
                   (match_operand:V2SF 2 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT"
  "ps_mul %0,%1,%2"
  [(set_attr "type" "fp")])

(define_insn "resv2sf2"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (unspec:V2SF [(match_operand:V2SF 1 "gpc_reg_operand" "f")] UNSPEC_FRES))]
  "TARGET_PAIRED_FLOAT && flag_finite_math_only"
  "ps_res %0,%1"
  [(set_attr "type" "fp")])

(define_insn "paired_divv2sf3"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (div:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                  (match_operand:V2SF 2 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT"
  "ps_div %0,%1,%2"
  [(set_attr "type" "sdiv")])

(define_insn "paired_madds0"
 [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
                 (vec_concat:V2SF
                 (plus:SF (mult:SF (vec_select:SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                                                  (parallel [(const_int 0)]))
                                   (vec_select:SF (match_operand:V2SF 2 "gpc_reg_operand" "f")
                                         (parallel [(const_int 0)])))
                          (vec_select:SF (match_operand:V2SF 3 "gpc_reg_operand" "f")
                                         (parallel [(const_int 0)])))
                 (plus:SF (mult:SF (vec_select:SF (match_dup 1)
                                         (parallel [(const_int 1)]))
                                     (vec_select:SF (match_dup 2)
                                         (parallel [(const_int 0)])))
                          (vec_select:SF (match_dup 3)
                                         (parallel [(const_int 1)])))))]
  "TARGET_PAIRED_FLOAT && TARGET_FUSED_MADD"
  "ps_madds0 %0,%1,%2,%3"
  [(set_attr "type" "fp")])

(define_insn "paired_madds1"
 [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
                 (vec_concat:V2SF
                 (plus:SF (mult:SF (vec_select:SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                                                  (parallel [(const_int 0)]))
                                   (vec_select:SF (match_operand:V2SF 2 "gpc_reg_operand" "f")
                                         (parallel [(const_int 1)])))
                          (vec_select:SF (match_operand:V2SF 3 "gpc_reg_operand" "f")
                                         (parallel [(const_int 0)])))
                 (plus:SF (mult:SF (vec_select:SF (match_dup 1)
                                         (parallel [(const_int 1)]))
                                     (vec_select:SF (match_dup 2)
                                         (parallel [(const_int 1)])))
                          (vec_select:SF (match_dup 3)
                                         (parallel [(const_int 1)])))))]
  "TARGET_PAIRED_FLOAT && TARGET_FUSED_MADD"
  "ps_madds1 %0,%1,%2,%3"
  [(set_attr "type" "fp")])

(define_insn "paired_madd"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (plus:V2SF (mult:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "%f")
                              (match_operand:V2SF 2 "gpc_reg_operand" "f"))
                   (match_operand:V2SF 3 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT && TARGET_FUSED_MADD"
  "ps_madd %0,%1,%2,%3"
  [(set_attr "type" "fp")]) 

(define_insn "paired_msub"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (minus:V2SF (mult:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "%f")
                               (match_operand:V2SF 2 "gpc_reg_operand" "f"))
                    (match_operand:V2SF 3 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT && TARGET_FUSED_MADD"
  "ps_msub %0,%1,%2,%3"
  [(set_attr "type" "fp")])

(define_insn "paired_nmadd"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (neg:V2SF (plus:V2SF (mult:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "%f")
                                        (match_operand:V2SF 2 "gpc_reg_operand" "f"))
                             (match_operand:V2SF 3 "gpc_reg_operand" "f"))))]
  "TARGET_PAIRED_FLOAT && TARGET_FUSED_MADD
   && HONOR_SIGNED_ZEROS (SFmode)"
  "ps_nmadd %0,%1,%2,%3"
  [(set_attr "type" "fp")])

(define_insn "paired_nmsub"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (neg:V2SF (minus:V2SF (mult:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "%f")
                                         (match_operand:V2SF 2 "gpc_reg_operand" "f"))
                              (match_operand:V2SF 3 "gpc_reg_operand" "f"))))]
  "TARGET_PAIRED_FLOAT && TARGET_FUSED_MADD
   && HONOR_SIGNED_ZEROS (DFmode)"
  "ps_nmsub %0,%1,%2,%3"
  [(set_attr "type" "dmul")])

(define_insn "selv2sf4"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (vec_concat:V2SF
         (if_then_else:SF (ge (vec_select:SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                                             (parallel [(const_int 0)]))
                              (match_operand:SF 4 "zero_fp_constant" "F"))
                          (vec_select:SF (match_operand:V2SF 2 "gpc_reg_operand" "f")
                                         (parallel [(const_int 0)]))
                          (vec_select:SF (match_operand:V2SF 3 "gpc_reg_operand" "f")
                                         (parallel [(const_int 0)])))
         (if_then_else:SF (ge (vec_select:SF (match_dup 1)
                                             (parallel [(const_int 1)]))
                              (match_dup 4))
                          (vec_select:SF (match_dup 2)
                                         (parallel [(const_int 1)]))
                          (vec_select:SF (match_dup 3)
                                         (parallel [(const_int 1)])))))]

  "TARGET_PAIRED_FLOAT"
  "ps_sel %0,%1,%2,%3"
  [(set_attr "type" "fp")])

(define_insn "*movv2sf_paired"
  [(set (match_operand:V2SF 0 "nonimmediate_operand" "=Z,f,f,o,r,r,f")
                 (match_operand:V2SF 1 "input_operand" "f,Z,f,r,o,r,W"))]
  "TARGET_PAIRED_FLOAT
   && (register_operand (operands[0], V2SFmode) 
       || register_operand (operands[1], V2SFmode))"
{
  switch (which_alternative)
    {
    case 0: return "psq_stx %1,%y0,0,0";
    case 1: return "psq_lx %0,%y1,0,0";
    case 2: return "ps_mr %0,%1";
    case 3: return "#";
    case 4: return "#";
    case 5: return "#";
    case 6: return "#"; 
    default: gcc_unreachable ();
    }
}
  [(set_attr "type" "fpstore,fpload,fp,*,*,*,*")])

(define_insn "paired_stx"
  [(set (match_operand:V2SF 0 "memory_operand" "=Z")
        (match_operand:V2SF 1 "gpc_reg_operand" "f"))]
  "TARGET_PAIRED_FLOAT"
  "psq_stx %1,%y0,0,0"
  [(set_attr "type" "fpstore")])

(define_insn "paired_lx"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (match_operand:V2SF 1 "memory_operand" "Z"))]
  "TARGET_PAIRED_FLOAT"
  "psq_lx %0,%y1,0,0"
  [(set_attr "type" "fpload")])


(define_split
  [(set (match_operand:V2SF 0 "nonimmediate_operand" "")
        (match_operand:V2SF 1 "input_operand" ""))]
  "TARGET_PAIRED_FLOAT && reload_completed
   && gpr_or_gpr_p (operands[0], operands[1])"
  [(pc)]
  {
  rs6000_split_multireg_move (operands[0], operands[1]); DONE;
  })

(define_insn "paired_cmpu0"
  [(set (match_operand:CCFP 0 "cc_reg_operand" "=y")
        (compare:CCFP (vec_select:SF
                       (match_operand:V2SF 1 "gpc_reg_operand" "f")
                       (parallel [(const_int 0)]))
                      (vec_select:SF
                       (match_operand:V2SF 2 "gpc_reg_operand" "f")
                       (parallel [(const_int 0)]))))]
  "TARGET_PAIRED_FLOAT"
  "ps_cmpu0 %0,%1,%2"
  [(set_attr "type" "fpcompare")])

(define_insn "paired_cmpu1"
  [(set (match_operand:CCFP 0 "cc_reg_operand" "=y")
        (compare:CCFP (vec_select:SF
                       (match_operand:V2SF 1 "gpc_reg_operand" "f")
                       (parallel [(const_int 1)]))
                      (vec_select:SF
                       (match_operand:V2SF 2 "gpc_reg_operand" "f")
                       (parallel [(const_int 1)]))))]
  "TARGET_PAIRED_FLOAT"
  "ps_cmpu1 %0,%1,%2"
  [(set_attr "type" "fpcompare")])

(define_insn "paired_merge00"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (vec_concat:V2SF
         (vec_select:SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                        (parallel [(const_int 0)]))
         (vec_select:SF (match_operand:V2SF 2 "gpc_reg_operand" "f")
                        (parallel [(const_int 0)]))))]
  "TARGET_PAIRED_FLOAT"
  "ps_merge00 %0, %1, %2"
  [(set_attr "type" "fp")])

(define_insn "paired_merge01"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (vec_concat:V2SF
         (vec_select:SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                        (parallel [(const_int 0)]))
         (vec_select:SF (match_operand:V2SF 2 "gpc_reg_operand" "f")
                        (parallel [(const_int 1)]))))]
  "TARGET_PAIRED_FLOAT"
  "ps_merge01 %0, %1, %2"
  [(set_attr "type" "fp")])

(define_insn "paired_merge10"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (vec_concat:V2SF
         (vec_select:SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                        (parallel [(const_int 1)]))
         (vec_select:SF (match_operand:V2SF 2 "gpc_reg_operand" "f")
                        (parallel [(const_int 0)]))))]
  "TARGET_PAIRED_FLOAT"
  "ps_merge10 %0, %1, %2"
  [(set_attr "type" "fp")])

(define_insn "paired_merge11"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (vec_concat:V2SF
         (vec_select:SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                        (parallel [(const_int 1)]))
         (vec_select:SF (match_operand:V2SF 2 "gpc_reg_operand" "f")
                        (parallel [(const_int 1)]))))]
  "TARGET_PAIRED_FLOAT"
  "ps_merge11 %0, %1, %2"
  [(set_attr "type" "fp")])

(define_insn "paired_sum0"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (vec_concat:V2SF (plus:SF (vec_select:SF
                                   (match_operand:V2SF 1 "gpc_reg_operand" "f")
                                   (parallel [(const_int 0)]))
                                  (vec_select:SF
                                   (match_operand:V2SF 2 "gpc_reg_operand" "f")
                                   (parallel [(const_int 1)])))
                         (vec_select:SF
                          (match_operand:V2SF 3 "gpc_reg_operand" "f")
                          (parallel [(const_int 1)]))))]
  "TARGET_PAIRED_FLOAT"
  "ps_sum0 %0,%1,%2,%3"
  [(set_attr "type" "fp")])

(define_insn "paired_sum1"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (vec_concat:V2SF (vec_select:SF
                          (match_operand:V2SF 2 "gpc_reg_operand" "f")
                          (parallel [(const_int 1)]))
                         (plus:SF (vec_select:SF
                                   (match_operand:V2SF 1 "gpc_reg_operand" "f")
                                   (parallel [(const_int 0)]))
                                  (vec_select:SF
                                   (match_operand:V2SF 3 "gpc_reg_operand" "f")
                                   (parallel [(const_int 1)])))))]
  "TARGET_PAIRED_FLOAT"
  "ps_sum1 %0,%1,%2,%3"
  [(set_attr "type" "fp")])

(define_insn "paired_muls0"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (mult:V2SF (match_operand:V2SF 2 "gpc_reg_operand" "f")
                   (vec_duplicate:V2SF
                    (vec_select:SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                                   (parallel [(const_int 0)])))))]
  "TARGET_PAIRED_FLOAT"
  "ps_muls0 %0, %1, %2"
  [(set_attr "type" "fp")])


(define_insn "paired_muls1"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (mult:V2SF (match_operand:V2SF 2 "gpc_reg_operand" "f")
                   (vec_duplicate:V2SF
                    (vec_select:SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                                   (parallel [(const_int 1)])))))]
  "TARGET_PAIRED_FLOAT"
  "ps_muls1 %0, %1, %2"
  [(set_attr "type" "fp")])

(define_expand "vec_initv2sf"
  [(match_operand:V2SF 0 "gpc_reg_operand" "=f")
   (match_operand 1 "" "")]
  "TARGET_PAIRED_FLOAT"
{
  paired_expand_vector_init (operands[0], operands[1]);
  DONE;
})

(define_insn "*vconcatsf"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (vec_concat:V2SF
         (match_operand:SF 1 "gpc_reg_operand" "f")
         (match_operand:SF 2 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT"
  "ps_merge00 %0, %1, %2"
  [(set_attr "type" "fp")])

(define_expand "sminv2sf3"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (smin:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                   (match_operand:V2SF 2 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT"
{
  rtx tmp = gen_reg_rtx (V2SFmode);

  emit_insn (gen_subv2sf3 (tmp, operands[1], operands[2]));
  emit_insn (gen_selv2sf4 (operands[0], tmp, operands[2], operands[1], CONST0_RTX (SFmode)));
  DONE;
})

(define_expand "smaxv2sf3"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (smax:V2SF (match_operand:V2SF 1 "gpc_reg_operand" "f")
                   (match_operand:V2SF 2 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT"
{
  rtx tmp = gen_reg_rtx (V2SFmode);

  emit_insn (gen_subv2sf3 (tmp, operands[1], operands[2]));
  emit_insn (gen_selv2sf4 (operands[0], tmp, operands[1], operands[2], CONST0_RTX (SFmode)));
  DONE;
})

(define_expand "reduc_smax_v2sf"
  [(match_operand:V2SF 0 "gpc_reg_operand" "=f")
   (match_operand:V2SF 1 "gpc_reg_operand" "f")]
  "TARGET_PAIRED_FLOAT"
{
  rtx tmp_swap = gen_reg_rtx (V2SFmode);
  rtx tmp = gen_reg_rtx (V2SFmode);

  emit_insn (gen_paired_merge10 (tmp_swap, operands[1], operands[1]));
  emit_insn (gen_subv2sf3 (tmp, operands[1], tmp_swap));
  emit_insn (gen_selv2sf4 (operands[0], tmp, operands[1], tmp_swap, CONST0_RTX (SFmode)));

  DONE;
})

(define_expand "reduc_smin_v2sf"
  [(match_operand:V2SF 0 "gpc_reg_operand" "=f")
   (match_operand:V2SF 1 "gpc_reg_operand" "f")]
  "TARGET_PAIRED_FLOAT"
{
  rtx tmp_swap = gen_reg_rtx (V2SFmode);
  rtx tmp = gen_reg_rtx (V2SFmode);

  emit_insn (gen_paired_merge10 (tmp_swap, operands[1], operands[1]));
  emit_insn (gen_subv2sf3 (tmp, operands[1], tmp_swap));
  emit_insn (gen_selv2sf4 (operands[0], tmp, tmp_swap, operands[1], CONST0_RTX (SFmode)));

  DONE;
})

(define_expand "vec_interleave_highv2sf"
 [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (unspec:V2SF [(match_operand:V2SF 1 "gpc_reg_operand" "f")
                      (match_operand:V2SF 2 "gpc_reg_operand" "f")]
                      UNSPEC_INTERHI_V2SF))]
  "TARGET_PAIRED_FLOAT"
  "
{
  emit_insn (gen_paired_merge00 (operands[0], operands[1], operands[2]));
  DONE;
}")

(define_expand "vec_interleave_lowv2sf"
 [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (unspec:V2SF [(match_operand:V2SF 1 "gpc_reg_operand" "f")
                      (match_operand:V2SF 2 "gpc_reg_operand" "f")]
                      UNSPEC_INTERLO_V2SF))]
  "TARGET_PAIRED_FLOAT"
  "
{
  emit_insn (gen_paired_merge11 (operands[0], operands[1], operands[2]));
  DONE;
}")

(define_expand "vec_extract_evenv2sf"
 [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (unspec:V2SF [(match_operand:V2SF 1 "gpc_reg_operand" "f")
                      (match_operand:V2SF 2 "gpc_reg_operand" "f")]
                      UNSPEC_EXTEVEN_V2SF))]
  "TARGET_PAIRED_FLOAT"
  "
{
  emit_insn (gen_paired_merge00 (operands[0], operands[1], operands[2]));
  DONE;
}")

(define_expand "vec_extract_oddv2sf"
 [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (unspec:V2SF [(match_operand:V2SF 1 "gpc_reg_operand" "f")
                      (match_operand:V2SF 2 "gpc_reg_operand" "f")]
                      UNSPEC_EXTODD_V2SF))]
  "TARGET_PAIRED_FLOAT"
  "
{
  emit_insn (gen_paired_merge11 (operands[0], operands[1], operands[2]));
  DONE;
}")


(define_expand "reduc_splus_v2sf"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (match_operand:V2SF 1 "gpc_reg_operand" "f"))]
  "TARGET_PAIRED_FLOAT"
  "
{
  emit_insn (gen_paired_sum1 (operands[0], operands[1], operands[1], operands[1]));
  DONE;
}")

(define_expand "movmisalignv2sf"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (match_operand:V2SF 1 "gpc_reg_operand" "f"))]
  "TARGET_PAIRED_FLOAT"
{
  paired_expand_vector_move (operands);
  DONE;
})

(define_expand "vcondv2sf"
  [(set (match_operand:V2SF 0 "gpc_reg_operand" "=f")
        (if_then_else:V2SF
         (match_operator 3 "gpc_reg_operand"
                         [(match_operand:V2SF 4 "gpc_reg_operand" "f")
                          (match_operand:V2SF 5 "gpc_reg_operand" "f")])
         (match_operand:V2SF 1 "gpc_reg_operand" "f")
         (match_operand:V2SF 2 "gpc_reg_operand" "f")))]
  "TARGET_PAIRED_FLOAT && flag_unsafe_math_optimizations"
  "
{
        if (paired_emit_vector_cond_expr (operands[0], operands[1], operands[2],
                                          operands[3], operands[4], operands[5]))
        DONE;
        else
        FAIL;
}")

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