/* Function logf vectorized with AVX-512. KNL and SKX versions.

   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_s_logf_data.h"

#include "svml_s_wrapper_impl.h"

	.text

ENTRY (_ZGVeN16v_logf_knl)

#ifndef HAVE_AVX512DQ_ASM_SUPPORT

WRAPPER_IMPL_AVX512 _ZGVdN8v_logf

#else

/*

   ALGORITHM DESCRIPTION:

     log(x) = exponent_x*log(2) + log(mantissa_x),         if mantissa_x<4/3

     log(x) = (exponent_x+1)*log(2) + log(0.5*mantissa_x), if mantissa_x>4/3

     R = mantissa_x - 1,     if mantissa_x<4/3

     R = 0.5*mantissa_x - 1, if mantissa_x>4/3

     |R|< 1/3

     log(1+R) is approximated as a polynomial: degree 9 for 1-ulp,

     degree 7 for 4-ulp, degree 3 for half-precision.  */

        pushq     %rbp

        cfi_adjust_cfa_offset (8)

        cfi_rel_offset (%rbp, 0)

        movq      %rsp, %rbp

        cfi_def_cfa_register (%rbp)

        andq      $-64, %rsp

        subq      $1280, %rsp

        movq      __svml_slog_data@GOTPCREL(%rip), %rax

        movl      $-1, %ecx

/* reduction: compute r,n */

        vpsubd    _iBrkValue(%rax), %zmm0, %zmm2

        vmovups   _sPoly_7(%rax), %zmm7

        vpandd    _iOffExpoMask(%rax), %zmm2, %zmm3

/* exponent_x (mantissa_x<4/3) or exponent_x+1 (mantissa_x>4/3) */

        vpsrad    $23, %zmm2, %zmm4

/* check for working range,

   set special argument mask (denormals/zero/Inf/NaN)

 */

        vpaddd    _iHiDelta(%rax), %zmm0, %zmm1

/* mantissa_x (mantissa_x<4/3), or 0.5*mantissa_x (mantissa_x>4/3) */

        vpaddd    _iBrkValue(%rax), %zmm3, %zmm6

        vpcmpd    $1, _iLoRange(%rax), %zmm1, %k1

        vcvtdq2ps {rn-sae}, %zmm4, %zmm1

/* reduced argument R */

        vsubps       _sOne(%rax), %zmm6, %zmm8

        vpbroadcastd %ecx, %zmm5{%k1}{z}

/* polynomial evaluation starts here */

        vfmadd213ps _sPoly_6(%rax), %zmm8, %zmm7

        vptestmd    %zmm5, %zmm5, %k0

        kmovw       %k0, %ecx

        vfmadd213ps _sPoly_5(%rax), %zmm8, %zmm7

        vfmadd213ps _sPoly_4(%rax), %zmm8, %zmm7

        vfmadd213ps _sPoly_3(%rax), %zmm8, %zmm7

        vfmadd213ps _sPoly_2(%rax), %zmm8, %zmm7

        vfmadd213ps _sPoly_1(%rax), %zmm8, %zmm7

        vmulps      %zmm8, %zmm7, %zmm9

/* polynomial evaluation end */

        vfmadd213ps %zmm8, %zmm8, %zmm9

/*

   final reconstruction:

   add exponent_value*log2 to polynomial result

 */

        vfmadd132ps _sLn2(%rax), %zmm9, %zmm1

        testl       %ecx, %ecx

        jne         .LBL_1_3

.LBL_1_2:

        cfi_remember_state

        vmovaps   %zmm1, %zmm0

        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

        vmovups   %zmm0, 1152(%rsp)

        vmovups   %zmm1, 1216(%rsp)

        je        .LBL_1_2

        xorb      %dl, %dl

        kmovw     %k4, 1048(%rsp)

        xorl      %eax, %eax

        kmovw     %k5, 1040(%rsp)

        kmovw     %k6, 1032(%rsp)

        kmovw     %k7, 1024(%rsp)

        vmovups   %zmm16, 960(%rsp)

        vmovups   %zmm17, 896(%rsp)

        vmovups   %zmm18, 832(%rsp)

        vmovups   %zmm19, 768(%rsp)

        vmovups   %zmm20, 704(%rsp)

        vmovups   %zmm21, 640(%rsp)

        vmovups   %zmm22, 576(%rsp)

        vmovups   %zmm23, 512(%rsp)

        vmovups   %zmm24, 448(%rsp)

        vmovups   %zmm25, 384(%rsp)

        vmovups   %zmm26, 320(%rsp)

        vmovups   %zmm27, 256(%rsp)

        vmovups   %zmm28, 192(%rsp)

        vmovups   %zmm29, 128(%rsp)

        vmovups   %zmm30, 64(%rsp)

        vmovups   %zmm31, (%rsp)

        movq      %rsi, 1064(%rsp)

        movq      %rdi, 1056(%rsp)

        movq      %r12, 1096(%rsp)

        cfi_offset_rel_rsp (12, 1096)

        movb      %dl, %r12b

        movq      %r13, 1088(%rsp)

        cfi_offset_rel_rsp (13, 1088)

        movl      %ecx, %r13d

        movq      %r14, 1080(%rsp)

        cfi_offset_rel_rsp (14, 1080)

        movl      %eax, %r14d

        movq      %r15, 1072(%rsp)

        cfi_offset_rel_rsp (15, 1072)

        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:

        addb      $1, %r12b

        addl      $2, %r14d

        cmpb      $16, %r12b

        jb        .LBL_1_6

        kmovw     1048(%rsp), %k4

        movq      1064(%rsp), %rsi

        kmovw     1040(%rsp), %k5

        movq      1056(%rsp), %rdi

        kmovw     1032(%rsp), %k6

        movq      1096(%rsp), %r12

        cfi_restore (%r12)

        movq      1088(%rsp), %r13

        cfi_restore (%r13)

        kmovw     1024(%rsp), %k7

        vmovups   960(%rsp), %zmm16

        vmovups   896(%rsp), %zmm17

        vmovups   832(%rsp), %zmm18

        vmovups   768(%rsp), %zmm19

        vmovups   704(%rsp), %zmm20

        vmovups   640(%rsp), %zmm21

        vmovups   576(%rsp), %zmm22

        vmovups   512(%rsp), %zmm23

        vmovups   448(%rsp), %zmm24

        vmovups   384(%rsp), %zmm25

        vmovups   320(%rsp), %zmm26

        vmovups   256(%rsp), %zmm27

        vmovups   192(%rsp), %zmm28

        vmovups   128(%rsp), %zmm29

        vmovups   64(%rsp), %zmm30

        vmovups   (%rsp), %zmm31

        movq      1080(%rsp), %r14

        cfi_restore (%r14)

        movq      1072(%rsp), %r15

        cfi_restore (%r15)

        vmovups   1216(%rsp), %zmm1

        jmp       .LBL_1_2

.LBL_1_10:

        cfi_restore_state

        movzbl    %r12b, %r15d

        vmovss    1156(%rsp,%r15,8), %xmm0

        call      JUMPTARGET(__logf_finite)

        vmovss    %xmm0, 1220(%rsp,%r15,8)

        jmp       .LBL_1_8

.LBL_1_12:

        movzbl    %r12b, %r15d

        vmovss    1152(%rsp,%r15,8), %xmm0

        call      JUMPTARGET(__logf_finite)

        vmovss    %xmm0, 1216(%rsp,%r15,8)

        jmp       .LBL_1_7

#endif

END (_ZGVeN16v_logf_knl)

ENTRY (_ZGVeN16v_logf_skx)

#ifndef HAVE_AVX512DQ_ASM_SUPPORT

WRAPPER_IMPL_AVX512 _ZGVdN8v_logf

#else

/*

   ALGORITHM DESCRIPTION:

     log(x) = exponent_x*log(2) + log(mantissa_x),         if mantissa_x<4/3

     log(x) = (exponent_x+1)*log(2) + log(0.5*mantissa_x), if mantissa_x>4/3

     R = mantissa_x - 1,     if mantissa_x<4/3

     R = 0.5*mantissa_x - 1, if mantissa_x>4/3

     |R|< 1/3

     log(1+R) is approximated as a polynomial: degree 9 for 1-ulp,

     degree 7 for 4-ulp, degree 3 for half-precision.  */

        pushq     %rbp

        cfi_adjust_cfa_offset (8)

        cfi_rel_offset (%rbp, 0)

        movq      %rsp, %rbp

        cfi_def_cfa_register (%rbp)

        andq      $-64, %rsp

        subq      $1280, %rsp

        movq      __svml_slog_data@GOTPCREL(%rip), %rax

        vmovups   .L_2il0floatpacket.7(%rip), %zmm6

        vmovups _iBrkValue(%rax), %zmm4

        vmovups _sPoly_7(%rax), %zmm8

/*

   check for working range,

   set special argument mask (denormals/zero/Inf/NaN)

 */

        vpaddd _iHiDelta(%rax), %zmm0, %zmm1

/* reduction: compute r,n */

        vpsubd    %zmm4, %zmm0, %zmm2

        vpcmpd    $5, _iLoRange(%rax), %zmm1, %k1

/* exponent_x (mantissa_x<4/3) or exponent_x+1 (mantissa_x>4/3) */

        vpsrad    $23, %zmm2, %zmm5

        vpandd _iOffExpoMask(%rax), %zmm2, %zmm3

/* mantissa_x (mantissa_x<4/3), or 0.5*mantissa_x (mantissa_x>4/3) */

        vpaddd    %zmm4, %zmm3, %zmm7

/* reduced argument R */

        vsubps _sOne(%rax), %zmm7, %zmm9

/* polynomial evaluation starts here */

        vfmadd213ps _sPoly_6(%rax), %zmm9, %zmm8

        vfmadd213ps _sPoly_5(%rax), %zmm9, %zmm8

        vfmadd213ps _sPoly_4(%rax), %zmm9, %zmm8

        vfmadd213ps _sPoly_3(%rax), %zmm9, %zmm8

        vfmadd213ps _sPoly_2(%rax), %zmm9, %zmm8

        vfmadd213ps _sPoly_1(%rax), %zmm9, %zmm8

        vmulps    %zmm9, %zmm8, %zmm10

/* polynomial evaluation end */

        vfmadd213ps %zmm9, %zmm9, %zmm10

        vpandnd   %zmm1, %zmm1, %zmm6{%k1}

        vptestmd  %zmm6, %zmm6, %k0

        vcvtdq2ps {rn-sae}, %zmm5, %zmm1

        kmovw     %k0, %ecx

/*

   final reconstruction:

   add exponent_value*log2 to polynomial result

 */

        vfmadd132ps _sLn2(%rax), %zmm10, %zmm1

        testl     %ecx, %ecx

        jne       .LBL_2_3

.LBL_2_2:

        cfi_remember_state

        vmovaps   %zmm1, %zmm0

        movq      %rbp, %rsp

        cfi_def_cfa_register (%rsp)

        popq      %rbp

        cfi_adjust_cfa_offset (-8)

        cfi_restore (%rbp)

        ret

.LBL_2_3:

        cfi_restore_state

        vmovups   %zmm0, 1152(%rsp)

        vmovups   %zmm1, 1216(%rsp)

        je        .LBL_2_2

        xorb      %dl, %dl

        xorl      %eax, %eax

        kmovw     %k4, 1048(%rsp)

        kmovw     %k5, 1040(%rsp)

        kmovw     %k6, 1032(%rsp)

        kmovw     %k7, 1024(%rsp)

        vmovups   %zmm16, 960(%rsp)

        vmovups   %zmm17, 896(%rsp)

        vmovups   %zmm18, 832(%rsp)

        vmovups   %zmm19, 768(%rsp)

        vmovups   %zmm20, 704(%rsp)

        vmovups   %zmm21, 640(%rsp)

        vmovups   %zmm22, 576(%rsp)

        vmovups   %zmm23, 512(%rsp)

        vmovups   %zmm24, 448(%rsp)

        vmovups   %zmm25, 384(%rsp)

        vmovups   %zmm26, 320(%rsp)

        vmovups   %zmm27, 256(%rsp)

        vmovups   %zmm28, 192(%rsp)

        vmovups   %zmm29, 128(%rsp)

        vmovups   %zmm30, 64(%rsp)

        vmovups   %zmm31, (%rsp)

        movq      %rsi, 1064(%rsp)

        movq      %rdi, 1056(%rsp)

        movq      %r12, 1096(%rsp)

        cfi_offset_rel_rsp (12, 1096)

        movb      %dl, %r12b

        movq      %r13, 1088(%rsp)

        cfi_offset_rel_rsp (13, 1088)

        movl      %ecx, %r13d

        movq      %r14, 1080(%rsp)

        cfi_offset_rel_rsp (14, 1080)

        movl      %eax, %r14d

        movq      %r15, 1072(%rsp)

        cfi_offset_rel_rsp (15, 1072)

        cfi_remember_state

.LBL_2_6:

        btl       %r14d, %r13d

        jc        .LBL_2_12

.LBL_2_7:

        lea       1(%r14), %esi

        btl       %esi, %r13d

        jc        .LBL_2_10

.LBL_2_8:

        incb      %r12b

        addl      $2, %r14d

        cmpb      $16, %r12b

        jb        .LBL_2_6

        kmovw     1048(%rsp), %k4

        kmovw     1040(%rsp), %k5

        kmovw     1032(%rsp), %k6

        kmovw     1024(%rsp), %k7

        vmovups   960(%rsp), %zmm16

        vmovups   896(%rsp), %zmm17

        vmovups   832(%rsp), %zmm18

        vmovups   768(%rsp), %zmm19

        vmovups   704(%rsp), %zmm20

        vmovups   640(%rsp), %zmm21

        vmovups   576(%rsp), %zmm22

        vmovups   512(%rsp), %zmm23

        vmovups   448(%rsp), %zmm24

        vmovups   384(%rsp), %zmm25

        vmovups   320(%rsp), %zmm26

        vmovups   256(%rsp), %zmm27

        vmovups   192(%rsp), %zmm28

        vmovups   128(%rsp), %zmm29

        vmovups   64(%rsp), %zmm30

        vmovups   (%rsp), %zmm31

        vmovups   1216(%rsp), %zmm1

        movq      1064(%rsp), %rsi

        movq      1056(%rsp), %rdi

        movq      1096(%rsp), %r12

        cfi_restore (%r12)

        movq      1088(%rsp), %r13

        cfi_restore (%r13)

        movq      1080(%rsp), %r14

        cfi_restore (%r14)

        movq      1072(%rsp), %r15

        cfi_restore (%r15)

        jmp       .LBL_2_2

.LBL_2_10:

        cfi_restore_state

        movzbl    %r12b, %r15d

        vmovss    1156(%rsp,%r15,8), %xmm0

        vzeroupper

        vmovss    1156(%rsp,%r15,8), %xmm0

        call      JUMPTARGET(__logf_finite)

        vmovss    %xmm0, 1220(%rsp,%r15,8)

        jmp       .LBL_2_8

.LBL_2_12:

        movzbl    %r12b, %r15d

        vmovss    1152(%rsp,%r15,8), %xmm0

        vzeroupper

        vmovss    1152(%rsp,%r15,8), %xmm0

        call      JUMPTARGET(__logf_finite)

        vmovss    %xmm0, 1216(%rsp,%r15,8)

        jmp       .LBL_2_7

#endif

END (_ZGVeN16v_logf_skx)

	.section .rodata, "a"

.L_2il0floatpacket.7:

	.long	0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff

	.type	.L_2il0floatpacket.7,@object