/* Function sin vectorized with SSE4.

   Copyright (C) 2014-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <sysdep.h>

#include "svml_d_trig_data.h"

	.text

ENTRY (_ZGVbN2v_sin_sse4)

/* ALGORITHM DESCRIPTION:

      ( low accuracy ( < 4ulp ) or enhanced performance

       ( half of correct mantissa ) implementation )

      Argument representation:

      arg = N*Pi + R

      Result calculation:

      sin(arg) = sin(N*Pi + R) = (-1)^N * sin(R)

      sin(R) is approximated by corresponding polynomial

 */

        pushq     %rbp

        cfi_adjust_cfa_offset (8)

        cfi_rel_offset (%rbp, 0)

        movq      %rsp, %rbp

        cfi_def_cfa_register (%rbp)

        andq      $-64, %rsp

        subq      $320, %rsp

        movaps    %xmm0, %xmm5

        movq      __svml_d_trig_data@GOTPCREL(%rip), %rax

        movups __dAbsMask(%rax), %xmm3

/*

   ARGUMENT RANGE REDUCTION:

   X' = |X|

 */

        movaps    %xmm3, %xmm4

/* SignX - sign bit of X */

        andnps    %xmm5, %xmm3

        movups __dInvPI(%rax), %xmm2

        andps     %xmm5, %xmm4

/* Y = X'*InvPi + RS : right shifter add */

        mulpd     %xmm4, %xmm2

        movups __dRShifter(%rax), %xmm6

/* R = X' - N*Pi1 */

        movaps    %xmm4, %xmm0

        addpd     %xmm6, %xmm2

        cmpnlepd __dRangeVal(%rax), %xmm4

/* N = Y - RS : right shifter sub */

        movaps    %xmm2, %xmm1

/* SignRes = Y<<63 : shift LSB to MSB place for result sign */

        psllq     $63, %xmm2

        subpd     %xmm6, %xmm1

        movmskpd  %xmm4, %ecx

        movups __dPI1(%rax), %xmm7

        mulpd     %xmm1, %xmm7

        movups __dPI2(%rax), %xmm6

/* R = R - N*Pi2 */

        mulpd     %xmm1, %xmm6

        subpd     %xmm7, %xmm0

        movups __dPI3(%rax), %xmm7

/* R = R - N*Pi3 */

        mulpd     %xmm1, %xmm7

        subpd     %xmm6, %xmm0

        movups __dPI4(%rax), %xmm6

/* R = R - N*Pi4 */

        mulpd     %xmm6, %xmm1

        subpd     %xmm7, %xmm0

        subpd     %xmm1, %xmm0

/*

   POLYNOMIAL APPROXIMATION:

   R2 = R*R

 */

        movaps    %xmm0, %xmm1

        mulpd     %xmm0, %xmm1

/* R = R^SignRes : update sign of reduced argument */

        xorps     %xmm2, %xmm0

        movups    __dC7_sin(%rax), %xmm2

        mulpd     %xmm1, %xmm2

        addpd     __dC6_sin(%rax), %xmm2

        mulpd     %xmm1, %xmm2

        addpd     __dC5_sin(%rax), %xmm2

        mulpd     %xmm1, %xmm2

        addpd     __dC4_sin(%rax), %xmm2

/* Poly = C3+R2*(C4+R2*(C5+R2*(C6+R2*C7))) */

        mulpd     %xmm1, %xmm2

        addpd     __dC3_sin(%rax), %xmm2

/* Poly = R2*(C1+R2*(C2+R2*Poly)) */

        mulpd     %xmm1, %xmm2

        addpd     __dC2_sin(%rax), %xmm2

        mulpd     %xmm1, %xmm2

        addpd     __dC1_sin(%rax), %xmm2

        mulpd     %xmm2, %xmm1

/* Poly = Poly*R + R */

        mulpd     %xmm0, %xmm1

        addpd     %xmm1, %xmm0

/*

   RECONSTRUCTION:

   Final sign setting: Res = Poly^SignX

 */

        xorps     %xmm3, %xmm0

        testl     %ecx, %ecx

        jne       .LBL_1_3

.LBL_1_2:

        cfi_remember_state

        movq      %rbp, %rsp

        cfi_def_cfa_register (%rsp)

        popq      %rbp

        cfi_adjust_cfa_offset (-8)

        cfi_restore (%rbp)

        ret

.LBL_1_3:

        cfi_restore_state

        movups    %xmm5, 192(%rsp)

        movups    %xmm0, 256(%rsp)

        je        .LBL_1_2

        xorb      %dl, %dl

        xorl      %eax, %eax

        movups    %xmm8, 112(%rsp)

        movups    %xmm9, 96(%rsp)

        movups    %xmm10, 80(%rsp)

        movups    %xmm11, 64(%rsp)

        movups    %xmm12, 48(%rsp)

        movups    %xmm13, 32(%rsp)

        movups    %xmm14, 16(%rsp)

        movups    %xmm15, (%rsp)

        movq      %rsi, 136(%rsp)

        movq      %rdi, 128(%rsp)

        movq      %r12, 168(%rsp)

        cfi_offset_rel_rsp (12, 168)

        movb      %dl, %r12b

        movq      %r13, 160(%rsp)

        cfi_offset_rel_rsp (13, 160)

        movl      %ecx, %r13d

        movq      %r14, 152(%rsp)

        cfi_offset_rel_rsp (14, 152)

        movl      %eax, %r14d

        movq      %r15, 144(%rsp)

        cfi_offset_rel_rsp (15, 144)

        cfi_remember_state

.LBL_1_6:

        btl       %r14d, %r13d

        jc        .LBL_1_12

.LBL_1_7:

        lea       1(%r14), %esi

        btl       %esi, %r13d

        jc        .LBL_1_10

.LBL_1_8:

        incb      %r12b

        addl      $2, %r14d

        cmpb      $16, %r12b

        jb        .LBL_1_6

        movups    112(%rsp), %xmm8

        movups    96(%rsp), %xmm9

        movups    80(%rsp), %xmm10

        movups    64(%rsp), %xmm11

        movups    48(%rsp), %xmm12

        movups    32(%rsp), %xmm13

        movups    16(%rsp), %xmm14

        movups    (%rsp), %xmm15

        movq      136(%rsp), %rsi

        movq      128(%rsp), %rdi

        movq      168(%rsp), %r12

        cfi_restore (%r12)

        movq      160(%rsp), %r13

        cfi_restore (%r13)

        movq      152(%rsp), %r14

        cfi_restore (%r14)

        movq      144(%rsp), %r15

        cfi_restore (%r15)

        movups    256(%rsp), %xmm0

        jmp       .LBL_1_2

.LBL_1_10:

        cfi_restore_state

        movzbl    %r12b, %r15d

        shlq      $4, %r15

        movsd     200(%rsp,%r15), %xmm0

        call      JUMPTARGET(sin)

        movsd     %xmm0, 264(%rsp,%r15)

        jmp       .LBL_1_8

.LBL_1_12:

        movzbl    %r12b, %r15d

        shlq      $4, %r15

        movsd     192(%rsp,%r15), %xmm0

        call      JUMPTARGET(sin)

        movsd     %xmm0, 256(%rsp,%r15)

        jmp       .LBL_1_7

END (_ZGVbN2v_sin_sse4)