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Vector logf for x86_64 and tests.

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Here is implementation of vectorized logf containing SSE, AVX,
AVX2 and AVX512 versions according to Vector ABI
<https://groups.google.com/forum/#!topic/x86-64-abi/LmppCfN1rZ4>.

    * sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: New symbols added.
    * sysdeps/x86/fpu/bits/math-vector.h: Added SIMD declaration and asm
    redirections for logf.
    * sysdeps/x86_64/fpu/Makefile (libmvec-support): Added new files.
    * sysdeps/x86_64/fpu/Versions: New versions added.
    * sysdeps/x86_64/fpu/libm-test-ulps: Regenerated.
    * sysdeps/x86_64/fpu/multiarch/Makefile (libmvec-sysdep_routines): Added
    build of SSE, AVX2 and AVX512 IFUNC versions.
    * sysdeps/x86_64/fpu/multiarch/svml_s_logf16_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_s_logf16_core_avx512.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_s_logf4_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_s_logf4_core_sse4.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_s_logf8_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_s_logf8_core_avx2.S: New file.
    * sysdeps/x86_64/fpu/svml_s_logf16_core.S: New file.
    * sysdeps/x86_64/fpu/svml_s_logf4_core.S: New file.
    * sysdeps/x86_64/fpu/svml_s_logf8_core.S: New file.
    * sysdeps/x86_64/fpu/svml_s_logf8_core_avx.S: New file.
    * sysdeps/x86_64/fpu/svml_s_logf_data.S: New file.
    * sysdeps/x86_64/fpu/svml_s_logf_data.h: New file.
    * sysdeps/x86_64/fpu/test-float-vlen16-wrappers.c: Vector logf tests.
    * sysdeps/x86_64/fpu/test-float-vlen16.c: Likewise.
    * sysdeps/x86_64/fpu/test-float-vlen4-wrappers.c: Likewise.
    * sysdeps/x86_64/fpu/test-float-vlen4.c: Likewise.
    * sysdeps/x86_64/fpu/test-float-vlen8-avx2-wrappers.c: Likewise.
    * sysdeps/x86_64/fpu/test-float-vlen8-avx2.c: Likewise.
    * sysdeps/x86_64/fpu/test-float-vlen8-wrappers.c: Likewise.
    * sysdeps/x86_64/fpu/test-float-vlen8.c: Likewise.
    * NEWS: Mention addition of x86_64 vector logf.
This commit is contained in:
Andrew Senkevich 2015-06-17 15:53:00 +03:00
parent 6af25acc7b
commit 774488f88a
28 changed files with 1232 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
ChangeLog
View File

@ -1,5 +1,35 @@
2015-06-17 Andrew Senkevich <andrew.senkevich@intel.com>
* sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: New symbols added.
* sysdeps/x86/fpu/bits/math-vector.h: Added SIMD declaration and asm
redirections for logf.
* sysdeps/x86_64/fpu/Makefile (libmvec-support): Added new files.
* sysdeps/x86_64/fpu/Versions: New versions added.
* sysdeps/x86_64/fpu/libm-test-ulps: Regenerated.
* sysdeps/x86_64/fpu/multiarch/Makefile (libmvec-sysdep_routines): Added
build of SSE, AVX2 and AVX512 IFUNC versions.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf16_core.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf16_core_avx512.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf4_core.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf4_core_sse4.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf8_core.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_s_logf8_core_avx2.S: New file.
* sysdeps/x86_64/fpu/svml_s_logf16_core.S: New file.
* sysdeps/x86_64/fpu/svml_s_logf4_core.S: New file.
* sysdeps/x86_64/fpu/svml_s_logf8_core.S: New file.
* sysdeps/x86_64/fpu/svml_s_logf8_core_avx.S: New file.
* sysdeps/x86_64/fpu/svml_s_logf_data.S: New file.
* sysdeps/x86_64/fpu/svml_s_logf_data.h: New file.
* sysdeps/x86_64/fpu/test-float-vlen16-wrappers.c: Vector logf tests.
* sysdeps/x86_64/fpu/test-float-vlen16.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen4-wrappers.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen4.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen8-avx2-wrappers.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen8-avx2.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen8-wrappers.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen8.c: Likewise.
* NEWS: Mention addition of x86_64 vector logf.
* bits/libm-simd-decl-stubs.h: Added stubs for log.
* math/bits/mathcalls.h: Added log declaration with __MATHCALL_VEC.
* sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: New versions added.

2
NEWS
View File

@ -53,7 +53,7 @@ Version 2.22
condition in some applications.
* Added vector math library named libmvec with the following vectorized x86_64
implementations: cos, cosf, sin, sinf, log.
implementations: cos, cosf, sin, sinf, log, logf.
The library can be disabled with --disable-mathvec. Use of the functions is
enabled with -fopenmp -ffast-math starting from -O1 for GCC version >= 4.9.0.
The library is linked in as needed when using -lm (no need to specify -lmvec

4
sysdeps/unix/sysv/linux/x86_64/libmvec.abilist
View File

@ -4,18 +4,22 @@ GLIBC_2.22
_ZGVbN2v_log F
_ZGVbN2v_sin F
_ZGVbN4v_cosf F
_ZGVbN4v_logf F
_ZGVbN4v_sinf F
_ZGVcN4v_cos F
_ZGVcN4v_log F
_ZGVcN4v_sin F
_ZGVcN8v_cosf F
_ZGVcN8v_logf F
_ZGVcN8v_sinf F
_ZGVdN4v_cos F
_ZGVdN4v_log F
_ZGVdN4v_sin F
_ZGVdN8v_cosf F
_ZGVdN8v_logf F
_ZGVdN8v_sinf F
_ZGVeN16v_cosf F
_ZGVeN16v_logf F
_ZGVeN16v_sinf F
_ZGVeN8v_cos F
_ZGVeN8v_log F

6
sysdeps/x86/fpu/bits/math-vector.h
View File

@ -38,6 +38,8 @@
# define __DECL_SIMD_sinf __DECL_SIMD_x86_64
# undef __DECL_SIMD_log
# define __DECL_SIMD_log __DECL_SIMD_x86_64
# undef __DECL_SIMD_logf
# define __DECL_SIMD_logf __DECL_SIMD_x86_64
/* Workaround to exclude unnecessary symbol aliases in libmvec
while GCC creates the vector names based on scalar asm name.
@ -47,6 +49,10 @@ __asm__ ("_ZGVbN2v___log_finite = _ZGVbN2v_log");
__asm__ ("_ZGVcN4v___log_finite = _ZGVcN4v_log");
__asm__ ("_ZGVdN4v___log_finite = _ZGVdN4v_log");
__asm__ ("_ZGVeN8v___log_finite = _ZGVeN8v_log");
__asm__ ("_ZGVbN4v___logf_finite = _ZGVbN4v_logf");
__asm__ ("_ZGVcN8v___logf_finite = _ZGVcN8v_logf");
__asm__ ("_ZGVdN8v___logf_finite = _ZGVdN8v_logf");
__asm__ ("_ZGVeN16v___logf_finite = _ZGVeN16v_logf");
# endif
#endif

4
sysdeps/x86_64/fpu/Makefile
View File

@ -8,7 +8,9 @@ libmvec-support += svml_d_cos2_core svml_d_cos4_core_avx \
svml_s_sinf4_core svml_s_sinf8_core_avx \
svml_s_sinf8_core svml_s_sinf16_core svml_s_sinf_data \
svml_d_log2_core svml_d_log4_core_avx svml_d_log4_core \
svml_d_log8_core svml_d_log_data \
svml_d_log8_core svml_d_log_data svml_s_logf4_core \
svml_s_logf8_core_avx svml_s_logf8_core svml_s_logf16_core \
svml_s_logf_data \
init-arch
endif

1
sysdeps/x86_64/fpu/Versions
View File

@ -5,5 +5,6 @@ libmvec {
_ZGVbN2v_log; _ZGVcN4v_log; _ZGVdN4v_log; _ZGVeN8v_log;
_ZGVbN4v_cosf; _ZGVcN8v_cosf; _ZGVdN8v_cosf; _ZGVeN16v_cosf;
_ZGVbN4v_sinf; _ZGVcN8v_sinf; _ZGVdN8v_sinf; _ZGVeN16v_sinf;
_ZGVbN4v_logf; _ZGVcN8v_logf; _ZGVdN8v_logf; _ZGVeN16v_logf;
}
}

8
sysdeps/x86_64/fpu/libm-test-ulps
View File

@ -1847,17 +1847,25 @@ ifloat: 2
ildouble: 1
ldouble: 1
Function: "log_vlen16":
float: 3
Function: "log_vlen2":
double: 1
Function: "log_vlen4":
double: 1
float: 3
Function: "log_vlen4_avx2":
double: 1
Function: "log_vlen8":
double: 1
float: 3
Function: "log_vlen8_avx2":
float: 2
Function: "pow":
float: 3

4
sysdeps/x86_64/fpu/multiarch/Makefile
View File

@ -60,5 +60,7 @@ libmvec-sysdep_routines += svml_d_cos2_core_sse4 svml_d_cos4_core_avx2 \
svml_d_log8_core_avx512 \
svml_s_cosf4_core_sse4 svml_s_cosf8_core_avx2 \
svml_s_cosf16_core_avx512 svml_s_sinf4_core_sse4 \
svml_s_sinf8_core_avx2 svml_s_sinf16_core_avx512
svml_s_sinf8_core_avx2 svml_s_sinf16_core_avx512 \
svml_s_logf4_core_sse4 svml_s_logf8_core_avx2 \
svml_s_logf16_core_avx512
endif

39
sysdeps/x86_64/fpu/multiarch/svml_s_logf16_core.S Normal file
View File

@ -0,0 +1,39 @@
/* Multiple versions of vectorized logf.
Copyright (C) 2014-2015 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 <init-arch.h>
.text
ENTRY (_ZGVeN16v_logf)
.type _ZGVeN16v_logf, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features(%rip)
jne 1
call __init_cpu_features
1: leaq _ZGVeN16v_logf_skx(%rip), %rax
testl $bit_AVX512DQ_Usable, __cpu_features+FEATURE_OFFSET+index_AVX512DQ_Usable(%rip)
jnz 3
2: leaq _ZGVeN16v_logf_knl(%rip), %rax
testl $bit_AVX512F_Usable, __cpu_features+FEATURE_OFFSET+index_AVX512F_Usable(%rip)
jnz 3
leaq _ZGVeN16v_logf_avx2_wrapper(%rip), %rax
3: ret
END (_ZGVeN16v_logf)
#define _ZGVeN16v_logf _ZGVeN16v_logf_avx2_wrapper
#include "../svml_s_logf16_core.S"

416
sysdeps/x86_64/fpu/multiarch/svml_s_logf16_core_avx512.S Normal file
View File

@ -0,0 +1,416 @@
/* Function logf vectorized with AVX-512. KNL and SKX versions.
Copyright (C) 2014-2015 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_AVX512_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 logf@PLT
vmovss %xmm0, 1220(%rsp,%r15,8)
jmp .LBL_1_8
.LBL_1_12:
movzbl %r12b, %r15d
vmovss 1152(%rsp,%r15,8), %xmm0
call logf@PLT
vmovss %xmm0, 1216(%rsp,%r15,8)
jmp .LBL_1_7
#endif
END (_ZGVeN16v_logf_knl)
ENTRY (_ZGVeN16v_logf_skx)
#ifndef HAVE_AVX512_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 logf@PLT
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 logf@PLT
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

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/* Multiple versions of vectorized logf.
Copyright (C) 2014-2015 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 <init-arch.h>
.text
ENTRY (_ZGVbN4v_logf)
.type _ZGVbN4v_logf, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features(%rip)
jne 1f
call __init_cpu_features
1: leaq _ZGVbN4v_logf_sse4(%rip), %rax
testl $bit_SSE4_1, __cpu_features+CPUID_OFFSET+index_SSE4_1(%rip)
jz 2f
ret
2: leaq _ZGVbN4v_logf_sse2(%rip), %rax
ret
END (_ZGVbN4v_logf)
libmvec_hidden_def (_ZGVbN4v_logf)
#define _ZGVbN4v_logf _ZGVbN4v_logf_sse2
#include "../svml_s_logf4_core.S"

194
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/* Function logf vectorized with SSE4.
Copyright (C) 2014-2015 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"
.text
ENTRY (_ZGVbN4v_logf_sse4)
/*
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 $320, %rsp
/* reduction: compute r,n */
movaps %xmm0, %xmm2
/* check for working range,
set special argument mask (denormals/zero/Inf/NaN) */
movq __svml_slog_data@GOTPCREL(%rip), %rax
movdqu _iHiDelta(%rax), %xmm1
movdqu _iLoRange(%rax), %xmm4
paddd %xmm0, %xmm1
movdqu _iBrkValue(%rax), %xmm3
pcmpgtd %xmm1, %xmm4
movdqu _iOffExpoMask(%rax), %xmm1
psubd %xmm3, %xmm2
pand %xmm2, %xmm1
/* exponent_x (mantissa_x<4/3) or exponent_x+1 (mantissa_x>4/3) */
psrad $23, %xmm2
paddd %xmm3, %xmm1
movups _sPoly_7(%rax), %xmm5
/* mantissa_x (mantissa_x<4/3), or 0.5*mantissa_x (mantissa_x>4/3) */
cvtdq2ps %xmm2, %xmm6
/* reduced argument R */
subps _sOne(%rax), %xmm1
movmskps %xmm4, %ecx
/* final reconstruction:
add exponent_value*log2 to polynomial result */
mulps _sLn2(%rax), %xmm6
/* polynomial evaluation starts here */
mulps %xmm1, %xmm5
addps _sPoly_6(%rax), %xmm5
mulps %xmm1, %xmm5
addps _sPoly_5(%rax), %xmm5
mulps %xmm1, %xmm5
addps _sPoly_4(%rax), %xmm5
mulps %xmm1, %xmm5
addps _sPoly_3(%rax), %xmm5
mulps %xmm1, %xmm5
addps _sPoly_2(%rax), %xmm5
mulps %xmm1, %xmm5
addps _sPoly_1(%rax), %xmm5
mulps %xmm1, %xmm5
/* polynomial evaluation end */
mulps %xmm1, %xmm5
addps %xmm5, %xmm1
addps %xmm6, %xmm1
testl %ecx, %ecx
jne .LBL_1_3
.LBL_1_2:
cfi_remember_state
movdqa %xmm1, %xmm0
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 %xmm0, 192(%rsp)
movups %xmm1, 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), %xmm1
jmp .LBL_1_2
.LBL_1_10:
cfi_restore_state
movzbl %r12b, %r15d
movss 196(%rsp,%r15,8), %xmm0
call logf@PLT
movss %xmm0, 260(%rsp,%r15,8)
jmp .LBL_1_8
.LBL_1_12:
movzbl %r12b, %r15d
movss 192(%rsp,%r15,8), %xmm0
call logf@PLT
movss %xmm0, 256(%rsp,%r15,8)
jmp .LBL_1_7
END (_ZGVbN4v_logf_sse4)

38
sysdeps/x86_64/fpu/multiarch/svml_s_logf8_core.S Normal file
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/* Multiple versions of vectorized logf.
Copyright (C) 2014-2015 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 <init-arch.h>
.text
ENTRY (_ZGVdN8v_logf)
.type _ZGVdN8v_logf, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features(%rip)
jne 1f
call __init_cpu_features
1: leaq _ZGVdN8v_logf_avx2(%rip), %rax
testl $bit_AVX2_Usable, __cpu_features+FEATURE_OFFSET+index_AVX2_Usable(%rip)
jz 2f
ret
2: leaq _ZGVdN8v_logf_sse_wrapper(%rip), %rax
ret
END (_ZGVdN8v_logf)
libmvec_hidden_def (_ZGVdN8v_logf)
#define _ZGVdN8v_logf _ZGVdN8v_logf_sse_wrapper
#include "../svml_s_logf8_core.S"

184
sysdeps/x86_64/fpu/multiarch/svml_s_logf8_core_avx2.S Normal file
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/* Function logf vectorized with AVX2.
Copyright (C) 2014-2015 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"
.text
ENTRY(_ZGVdN8v_logf_avx2)
/*
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 $448, %rsp
movq __svml_slog_data@GOTPCREL(%rip), %rax
vmovaps %ymm0, %ymm2
vmovups _iBrkValue(%rax), %ymm6
vmovups _iLoRange(%rax), %ymm1
/* check for working range,
set special argument mask (denormals/zero/Inf/NaN) */
vpaddd _iHiDelta(%rax), %ymm2, %ymm7
/* reduction: compute r,n */
vpsubd %ymm6, %ymm2, %ymm4
/* exponent_x (mantissa_x<4/3) or exponent_x+1 (mantissa_x>4/3) */
vpsrad $23, %ymm4, %ymm3
vpand _iOffExpoMask(%rax), %ymm4, %ymm5
vmovups _sPoly_7(%rax), %ymm4
vcvtdq2ps %ymm3, %ymm0
/* mantissa_x (mantissa_x<4/3), or 0.5*mantissa_x (mantissa_x>4/3) */
vpaddd %ymm6, %ymm5, %ymm3
/* reduced argument R */
vsubps _sOne(%rax), %ymm3, %ymm5
/* polynomial evaluation starts here */
vfmadd213ps _sPoly_6(%rax), %ymm5, %ymm4
vfmadd213ps _sPoly_5(%rax), %ymm5, %ymm4
vfmadd213ps _sPoly_4(%rax), %ymm5, %ymm4
vfmadd213ps _sPoly_3(%rax), %ymm5, %ymm4
vfmadd213ps _sPoly_2(%rax), %ymm5, %ymm4
vfmadd213ps _sPoly_1(%rax), %ymm5, %ymm4
vmulps %ymm5, %ymm4, %ymm6
/* polynomial evaluation end */
vfmadd213ps %ymm5, %ymm5, %ymm6
vpcmpgtd %ymm7, %ymm1, %ymm1
vmovmskps %ymm1, %ecx
/* final reconstruction:
add exponent_value*log2 to polynomial result */
vfmadd132ps _sLn2(%rax), %ymm6, %ymm0
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
vmovups %ymm2, 320(%rsp)
vmovups %ymm0, 384(%rsp)
je .LBL_1_2
xorb %dl, %dl
xorl %eax, %eax
vmovups %ymm8, 224(%rsp)
vmovups %ymm9, 192(%rsp)
vmovups %ymm10, 160(%rsp)
vmovups %ymm11, 128(%rsp)
vmovups %ymm12, 96(%rsp)
vmovups %ymm13, 64(%rsp)
vmovups %ymm14, 32(%rsp)
vmovups %ymm15, (%rsp)
movq %rsi, 264(%rsp)
movq %rdi, 256(%rsp)
movq %r12, 296(%rsp)
cfi_offset_rel_rsp (12, 296)
movb %dl, %r12b
movq %r13, 288(%rsp)
cfi_offset_rel_rsp (13, 288)
movl %ecx, %r13d
movq %r14, 280(%rsp)
cfi_offset_rel_rsp (14, 280)
movl %eax, %r14d
movq %r15, 272(%rsp)
cfi_offset_rel_rsp (15, 272)
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
vmovups 224(%rsp), %ymm8
vmovups 192(%rsp), %ymm9
vmovups 160(%rsp), %ymm10
vmovups 128(%rsp), %ymm11
vmovups 96(%rsp), %ymm12
vmovups 64(%rsp), %ymm13
vmovups 32(%rsp), %ymm14
vmovups (%rsp), %ymm15
vmovups 384(%rsp), %ymm0
movq 264(%rsp), %rsi
movq 256(%rsp), %rdi
movq 296(%rsp), %r12
cfi_restore (%r12)
movq 288(%rsp), %r13
cfi_restore (%r13)
movq 280(%rsp), %r14
cfi_restore (%r14)
movq 272(%rsp), %r15
cfi_restore (%r15)
jmp .LBL_1_2
.LBL_1_10:
cfi_restore_state
movzbl %r12b, %r15d
vmovss 324(%rsp,%r15,8), %xmm0
vzeroupper
call logf@PLT
vmovss %xmm0, 388(%rsp,%r15,8)
jmp .LBL_1_8
.LBL_1_12:
movzbl %r12b, %r15d
vmovss 320(%rsp,%r15,8), %xmm0
vzeroupper
call logf@PLT
vmovss %xmm0, 384(%rsp,%r15,8)
jmp .LBL_1_7
END(_ZGVdN8v_logf_avx2)

25
sysdeps/x86_64/fpu/svml_s_logf16_core.S Normal file
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/* Function logf vectorized with AVX-512. Wrapper to AVX2 version.
Copyright (C) 2014-2015 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_wrapper_impl.h"
.text
ENTRY (_ZGVeN16v_logf)
WRAPPER_IMPL_AVX512 _ZGVdN8v_logf
END (_ZGVeN16v_logf)

30
sysdeps/x86_64/fpu/svml_s_logf4_core.S Normal file
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/* Function logf vectorized with SSE2.
Copyright (C) 2014-2015 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_wrapper_impl.h"
.text
ENTRY (_ZGVbN4v_logf)
WRAPPER_IMPL_SSE2 logf
END (_ZGVbN4v_logf)
#ifndef USE_MULTIARCH
libmvec_hidden_def (_ZGVbN4v_logf)
#endif

29
sysdeps/x86_64/fpu/svml_s_logf8_core.S Normal file
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@ -0,0 +1,29 @@
/* Function logf vectorized with AVX2, wrapper version.
Copyright (C) 2014-2015 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_wrapper_impl.h"
.text
ENTRY (_ZGVdN8v_logf)
WRAPPER_IMPL_AVX _ZGVbN4v_logf
END (_ZGVdN8v_logf)
#ifndef USE_MULTIARCH
libmvec_hidden_def (_ZGVdN8v_logf)
#endif

25
sysdeps/x86_64/fpu/svml_s_logf8_core_avx.S Normal file
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/* Function logf vectorized in AVX ISA as wrapper to SSE4 ISA version.
Copyright (C) 2014-2015 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_wrapper_impl.h"
.text
ENTRY(_ZGVcN8v_logf)
WRAPPER_IMPL_AVX _ZGVbN4v_logf
END(_ZGVcN8v_logf)

102
sysdeps/x86_64/fpu/svml_s_logf_data.S Normal file
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@ -0,0 +1,102 @@
/* Data for vector function logf.
Copyright (C) 2014-2015 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 "svml_s_logf_data.h"
.section .rodata, "a"
.align 64
/* Data table for vector implementations of function logf.
The table may contain polynomial, reduction, lookup coefficients and
other coefficients obtained through different methods of research and
experimental work. */
.globl __svml_slog_data
__svml_slog_data:
/* Polynomial sPoly[] coefficients:
* -5.0000000000000000000000000e-01 */
float_vector _sPoly_1 0xbf000000
/* 3.3336564898490905761718750e-01 */
float_vector _sPoly_2 0x3eaaaee7
/* -2.5004664063453674316406250e-01 */
float_vector _sPoly_3 0xbe80061d
/* 1.9822503626346588134765625e-01 */
float_vector _sPoly_4 0x3e4afb81
/* -1.6462457180023193359375000e-01 */
float_vector _sPoly_5 0xbe289358
/* 1.6964881122112274169921875e-01 */
float_vector _sPoly_6 0x3e2db86b
/* -1.5177205204963684082031250e-01 */
float_vector _sPoly_7 0xbe1b6a22
/* Constant for work range check: Delta 80000000-7f800000 */
float_vector _iHiDelta 0x00800000
/* Constant for work range check: 00800000 + Delta */
float_vector _iLoRange 0x01000000
/* Mantissa break point SP 2/3 */
float_vector _iBrkValue 0x3f2aaaab
/* SP significand mask */
float_vector _iOffExpoMask 0x007fffff
/* 1.0f */
float_vector _sOne 0x3f800000
/* SP log(2) */
float_vector _sLn2 0x3f317218
/* SP infinity, +/- */
.if .-__svml_slog_data != _sInfs
.err
.endif
.long 0x7f800000
.long 0xff800000
.rept 56
.byte 0
.endr
/* SP one, +/- */
.if .-__svml_slog_data != _sOnes
.err
.endif
.long 0x3f800000
.long 0xbf800000
.rept 56
.byte 0
.endr
/* SP zero +/- */
.if .-__svml_slog_data != _sZeros
.err
.endif
.long 0x00000000
.long 0x80000000
.rept 56
.byte 0
.endr
.type __svml_slog_data,@object
.size __svml_slog_data,.-__svml_slog_data

48
sysdeps/x86_64/fpu/svml_s_logf_data.h Normal file
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/* Offsets for data table for vectorized function logf.
Copyright (C) 2014-2015 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/>. */
#ifndef S_LOGF_DATA_H
#define S_LOGF_DATA_H
#define _sPoly_1 0
#define _sPoly_2 64
#define _sPoly_3 128
#define _sPoly_4 192
#define _sPoly_5 256
#define _sPoly_6 320
#define _sPoly_7 384
#define _iHiDelta 448
#define _iLoRange 512
#define _iBrkValue 576
#define _iOffExpoMask 640
#define _sOne 704
#define _sLn2 768
#define _sInfs 832
#define _sOnes 896
#define _sZeros 960
.macro float_vector offset value
.if .-__svml_slog_data != \offset
.err
.endif
.rept 16
.long \value
.endr
.endm
#endif

1
sysdeps/x86_64/fpu/test-float-vlen16-wrappers.c
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@ -24,3 +24,4 @@
VECTOR_WRAPPER (WRAPPER_NAME (cosf), _ZGVeN16v_cosf)
VECTOR_WRAPPER (WRAPPER_NAME (sinf), _ZGVeN16v_sinf)
VECTOR_WRAPPER (WRAPPER_NAME (logf), _ZGVeN16v_logf)

1
sysdeps/x86_64/fpu/test-float-vlen16.c
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@ -20,6 +20,7 @@
#define TEST_VECTOR_cosf 1
#define TEST_VECTOR_sinf 1
#define TEST_VECTOR_logf 1
#define REQUIRE_AVX512F

1
sysdeps/x86_64/fpu/test-float-vlen4-wrappers.c
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@ -24,3 +24,4 @@
VECTOR_WRAPPER (WRAPPER_NAME (cosf), _ZGVbN4v_cosf)
VECTOR_WRAPPER (WRAPPER_NAME (sinf), _ZGVbN4v_sinf)
VECTOR_WRAPPER (WRAPPER_NAME (logf), _ZGVbN4v_logf)

1
sysdeps/x86_64/fpu/test-float-vlen4.c
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@ -20,5 +20,6 @@
#define TEST_VECTOR_cosf 1
#define TEST_VECTOR_sinf 1
#define TEST_VECTOR_logf 1
#include "libm-test.c"

1
sysdeps/x86_64/fpu/test-float-vlen8-avx2-wrappers.c
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@ -27,3 +27,4 @@
VECTOR_WRAPPER (WRAPPER_NAME (cosf), _ZGVdN8v_cosf)
VECTOR_WRAPPER (WRAPPER_NAME (sinf), _ZGVdN8v_sinf)
VECTOR_WRAPPER (WRAPPER_NAME (logf), _ZGVdN8v_logf)

1
sysdeps/x86_64/fpu/test-float-vlen8-avx2.c
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@ -23,6 +23,7 @@
#define TEST_VECTOR_cosf 1
#define TEST_VECTOR_sinf 1
#define TEST_VECTOR_logf 1
#define REQUIRE_AVX2

1
sysdeps/x86_64/fpu/test-float-vlen8-wrappers.c
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@ -24,3 +24,4 @@
VECTOR_WRAPPER (WRAPPER_NAME (cosf), _ZGVcN8v_cosf)
VECTOR_WRAPPER (WRAPPER_NAME (sinf), _ZGVcN8v_sinf)
VECTOR_WRAPPER (WRAPPER_NAME (logf), _ZGVcN8v_logf)

1
sysdeps/x86_64/fpu/test-float-vlen8.c
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@ -20,5 +20,6 @@
#define TEST_VECTOR_cosf 1
#define TEST_VECTOR_sinf 1
#define TEST_VECTOR_logf 1
#include "libm-test.c"