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Start of series of patches with x86_64 vector math functions. 

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

Vector math library build and ABI testing enabled by default for x86_64.

    * sysdeps/x86_64/fpu/Makefile: New file.
    * sysdeps/x86_64/fpu/Versions: New file.
    * sysdeps/x86_64/fpu/svml_d_cos_data.S: New file.
    * sysdeps/x86_64/fpu/svml_d_cos_data.h: New file.
    * sysdeps/x86_64/fpu/svml_d_cos2_core.S: New file.
    * sysdeps/x86_64/fpu/svml_d_cos4_core.S: New file.
    * sysdeps/x86_64/fpu/svml_d_cos4_core_avx.S: New file.
    * sysdeps/x86_64/fpu/svml_d_cos8_core.S: New file.
    * sysdeps/x86_64/fpu/svml_d_wrapper_impl.h: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core_sse4.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core_avx512.S: New file.
    * sysdeps/x86_64/fpu/multiarch/Makefile (libmvec-sysdep_routines): Added
    build of SSE, AVX2 and AVX512 IFUNC versions.
    * sysdeps/x86/fpu/bits/math-vector.h: Added SIMD declaration for cos.
    * math/bits/mathcalls.h: Added cos declaration with __MATHCALL_VEC.
    * sysdeps/x86_64/configure.ac: Options for libmvec build.
    * sysdeps/x86_64/configure: Regenerated.
    * sysdeps/x86_64/sysdep.h (cfi_offset_rel_rsp): New macro.
    * sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: New file.
    * manual/install.texi (Configuring and compiling): Document
    --disable-mathvec.
    * INSTALL: Regenerated.
    * NEWS: Mention addition of libmvec and x86_64 vector cos.
This commit is contained in:
Andrew Senkevich 2015-06-09 14:25:49 +03:00
parent fc5771e43c
commit 2193311288
26 changed files with 1499 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
ChangeLog
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@ -1,3 +1,33 @@
2015-06-09 Andrew Senkevich <andrew.senkevich@intel.com>
* sysdeps/x86_64/fpu/Makefile: New file.
* sysdeps/x86_64/fpu/Versions: New file.
* sysdeps/x86_64/fpu/svml_d_cos_data.S: New file.
* sysdeps/x86_64/fpu/svml_d_cos_data.h: New file.
* sysdeps/x86_64/fpu/svml_d_cos2_core.S: New file.
* sysdeps/x86_64/fpu/svml_d_cos4_core.S: New file.
* sysdeps/x86_64/fpu/svml_d_cos4_core_avx.S: New file.
* sysdeps/x86_64/fpu/svml_d_cos8_core.S: New file.
* sysdeps/x86_64/fpu/svml_d_wrapper_impl.h: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core_sse4.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S: New file.
* sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core_avx512.S: New file.
* sysdeps/x86_64/fpu/multiarch/Makefile (libmvec-sysdep_routines): Added
build of SSE, AVX2 and AVX512 IFUNC versions.
* sysdeps/x86/fpu/bits/math-vector.h: Added SIMD declaration for cos.
* math/bits/mathcalls.h: Added cos declaration with __MATHCALL_VEC.
* sysdeps/x86_64/configure.ac: Options for libmvec build.
* sysdeps/x86_64/configure: Regenerated.
* sysdeps/x86_64/sysdep.h (cfi_offset_rel_rsp): New macro.
* sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: New file.
* manual/install.texi (Configuring and compiling): Document
--disable-mathvec.
* INSTALL: Regenerated.
* NEWS: Mention addition of libmvec and x86_64 vector cos.
2015-06-09 Marko Myllynen <myllynen@redhat.com>
* locale/C-ctype.c (PREDEFINED_CLASSES): Remove.

4
INSTALL
View File

@ -149,6 +149,10 @@ will be used, and CFLAGS sets optimization options for the compiler.
with, so new warnings cause the build with '-Werror' to fail), you
can configure with '--disable-werror'.
'--disable-mathvec'
By default for x86_64, the GNU C Library is built with vector math
library. Use this option to disable vector math library.
'--build=BUILD-SYSTEM'
'--host=HOST-SYSTEM'
These options are for cross-compiling. If you specify both options

8
NEWS
View File

@ -50,6 +50,14 @@ Version 2.22
* CVE-2014-8121 The NSS backends shared internal state between the getXXent
and getXXbyYY NSS calls for the same database, causing a denial-of-service
condition in some applications.
* Added vector math library named libmvec with the following vectorized x86_64
implementations: cos.
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
explicitly).
Visit <https://sourceware.org/glibc/wiki/libmvec> for detailed information.
Version 2.21

4
manual/install.texi
View File

@ -181,6 +181,10 @@ version of GCC than this version of @theglibc{} was tested with, so
new warnings cause the build with @option{-Werror} to fail), you can
configure with @option{--disable-werror}.
@item --disable-mathvec
By default for x86_64, @theglibc{} is built with vector math library.
Use this option to disable vector math library.
@item --build=@var{build-system}
@itemx --host=@var{host-system}
These options are for cross-compiling. If you specify both options and

2
math/bits/mathcalls.h
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@ -60,7 +60,7 @@ __MATHCALL (atan,, (_Mdouble_ __x));
__MATHCALL (atan2,, (_Mdouble_ __y, _Mdouble_ __x));
/* Cosine of X. */
__MATHCALL (cos,, (_Mdouble_ __x));
__MATHCALL_VEC (cos,, (_Mdouble_ __x));
/* Sine of X. */
__MATHCALL (sin,, (_Mdouble_ __x));
/* Tangent of X. */

6
sysdeps/unix/sysv/linux/x86_64/libmvec.abilist Normal file
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@ -0,0 +1,6 @@
GLIBC_2.22
GLIBC_2.22 A
_ZGVbN2v_cos F
_ZGVcN4v_cos F
_ZGVdN4v_cos F
_ZGVeN8v_cos F

34
sysdeps/x86/fpu/bits/math-vector.h Normal file
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@ -0,0 +1,34 @@
/* Platform-specific SIMD declarations of math functions.
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 _MATH_H
# error "Never include <bits/math-vector.h> directly;\
include <math.h> instead."
#endif
/* Get default empty definitions for simd declarations. */
#include <bits/libm-simd-decl-stubs.h>
#if defined __x86_64__ && defined __FAST_MATH__
# if defined _OPENMP && _OPENMP >= 201307
/* OpenMP case. */
# define __DECL_SIMD_x86_64 _Pragma ("omp declare simd notinbranch")
# undef __DECL_SIMD_cos
# define __DECL_SIMD_cos __DECL_SIMD_x86_64
# endif
#endif

4
sysdeps/x86_64/configure vendored
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@ -275,6 +275,10 @@ fi
config_vars="$config_vars
config-cflags-avx2 = $libc_cv_cc_avx2"
if test x"$build_mathvec" = xnotset; then
build_mathvec=yes
fi
$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
# work around problem with autoconf and empty lines at the end of files

4
sysdeps/x86_64/configure.ac
View File

@ -99,6 +99,10 @@ if test $libc_cv_cc_avx2 = yes; then
fi
LIBC_CONFIG_VAR([config-cflags-avx2], [$libc_cv_cc_avx2])
if test x"$build_mathvec" = xnotset; then
build_mathvec=yes
fi
dnl It is always possible to access static and hidden symbols in an
dnl position independent way.
AC_DEFINE(PI_STATIC_AND_HIDDEN)

5
sysdeps/x86_64/fpu/Makefile Normal file
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@ -0,0 +1,5 @@
ifeq ($(subdir),mathvec)
libmvec-support += svml_d_cos2_core svml_d_cos4_core_avx \
svml_d_cos4_core svml_d_cos8_core \
svml_d_cos_data init-arch
endif

5
sysdeps/x86_64/fpu/Versions Normal file
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@ -0,0 +1,5 @@
libmvec {
GLIBC_2.22 {
_ZGVbN2v_cos; _ZGVcN4v_cos; _ZGVdN4v_cos; _ZGVeN8v_cos;
}
}

5
sysdeps/x86_64/fpu/multiarch/Makefile
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@ -51,3 +51,8 @@ CFLAGS-slowexp-avx.c = -msse2avx -DSSE2AVX
CFLAGS-s_tan-avx.c = -msse2avx -DSSE2AVX
endif
endif
ifeq ($(subdir),mathvec)
libmvec-sysdep_routines += svml_d_cos2_core_sse4 svml_d_cos4_core_avx2 \
svml_d_cos8_core_avx512
endif

38
sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core.S Normal file
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@ -0,0 +1,38 @@
/* Multiple versions of vectorized cos, vector length is 2.
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 (_ZGVbN2v_cos)
.type _ZGVbN2v_cos, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features(%rip)
jne 1f
call __init_cpu_features
1: leaq _ZGVbN2v_cos_sse4(%rip), %rax
testl $bit_SSE4_1, __cpu_features+CPUID_OFFSET+index_SSE4_1(%rip)
jz 2f
ret
2: leaq _ZGVbN2v_cos_sse2(%rip), %rax
ret
END (_ZGVbN2v_cos)
libmvec_hidden_def (_ZGVbN2v_cos)
#define _ZGVbN2v_cos _ZGVbN2v_cos_sse2
#include "../svml_d_cos2_core.S"

223
sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core_sse4.S Normal file
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@ -0,0 +1,223 @@
/* Function cos 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_d_cos_data.h"
.text
ENTRY (_ZGVbN2v_cos_sse4)
/* ALGORITHM DESCRIPTION:
( low accuracy ( < 4ulp ) or enhanced performance
( half of correct mantissa ) implementation )
Argument representation:
arg + Pi/2 = (N*Pi + R)
Result calculation:
cos(arg) = sin(arg+Pi/2) = 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, %xmm3
movq __svml_dcos_data@GOTPCREL(%rip), %rax
movups __dHalfPI(%rax), %xmm2
/* ARGUMENT RANGE REDUCTION:
Add Pi/2 to argument: X' = X+Pi/2
*/
addpd %xmm3, %xmm2
movups __dInvPI(%rax), %xmm5
movups __dAbsMask(%rax), %xmm4
/* Get absolute argument value: X' = |X'| */
andps %xmm2, %xmm4
/* Y = X'*InvPi + RS : right shifter add */
mulpd %xmm5, %xmm2
/* Check for large arguments path */
cmpnlepd __dRangeVal(%rax), %xmm4
movups __dRShifter(%rax), %xmm6
addpd %xmm6, %xmm2
movmskpd %xmm4, %ecx
/* 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
/* N = N - 0.5 */
subpd __dOneHalf(%rax), %xmm1
movups __dPI1(%rax), %xmm7
/* R = X - N*Pi1 */
mulpd %xmm1, %xmm7
movups __dPI2(%rax), %xmm4
/* R = R - N*Pi2 */
mulpd %xmm1, %xmm4
subpd %xmm7, %xmm0
movups __dPI3(%rax), %xmm5
/* R = R - N*Pi3 */
mulpd %xmm1, %xmm5
subpd %xmm4, %xmm0
/* R = R - N*Pi4 */
movups __dPI4(%rax), %xmm6
mulpd %xmm6, %xmm1
subpd %xmm5, %xmm0
subpd %xmm1, %xmm0
/* POLYNOMIAL APPROXIMATION: R2 = R*R */
movaps %xmm0, %xmm4
mulpd %xmm0, %xmm4
movups __dC7(%rax), %xmm1
mulpd %xmm4, %xmm1
addpd __dC6(%rax), %xmm1
mulpd %xmm4, %xmm1
addpd __dC5(%rax), %xmm1
mulpd %xmm4, %xmm1
addpd __dC4(%rax), %xmm1
/* Poly = C3+R2*(C4+R2*(C5+R2*(C6+R2*C7))) */
mulpd %xmm4, %xmm1
addpd __dC3(%rax), %xmm1
/* Poly = R+R*(R2*(C1+R2*(C2+R2*Poly))) */
mulpd %xmm4, %xmm1
addpd __dC2(%rax), %xmm1
mulpd %xmm4, %xmm1
addpd __dC1(%rax), %xmm1
mulpd %xmm1, %xmm4
mulpd %xmm0, %xmm4
addpd %xmm4, %xmm0
/* RECONSTRUCTION:
Final sign setting: Res = Poly^SignRes */
xorps %xmm2, %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 %xmm3, 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 cos@PLT
movsd %xmm0, 264(%rsp,%r15)
jmp .LBL_1_8
.LBL_1_12:
movzbl %r12b, %r15d
shlq $4, %r15
movsd 192(%rsp,%r15), %xmm0
call cos@PLT
movsd %xmm0, 256(%rsp,%r15)
jmp .LBL_1_7
END (_ZGVbN2v_cos_sse4)

38
sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core.S Normal file
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@ -0,0 +1,38 @@
/* Multiple versions of vectorized cos, vector length is 4.
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 (_ZGVdN4v_cos)
.type _ZGVdN4v_cos, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features(%rip)
jne 1f
call __init_cpu_features
1: leaq _ZGVdN4v_cos_avx2(%rip), %rax
testl $bit_AVX2_Usable, __cpu_features+FEATURE_OFFSET+index_AVX2_Usable(%rip)
jz 2f
ret
2: leaq _ZGVdN4v_cos_sse_wrapper(%rip), %rax
ret
END (_ZGVdN4v_cos)
libmvec_hidden_def (_ZGVdN4v_cos)
#define _ZGVdN4v_cos _ZGVdN4v_cos_sse_wrapper
#include "../svml_d_cos4_core.S"

207
sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S Normal file
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@ -0,0 +1,207 @@
/* Function cos 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_d_cos_data.h"
.text
ENTRY (_ZGVdN4v_cos_avx2)
/* ALGORITHM DESCRIPTION:
( low accuracy ( < 4ulp ) or enhanced performance
( half of correct mantissa ) implementation )
Argument representation:
arg + Pi/2 = (N*Pi + R)
Result calculation:
cos(arg) = sin(arg+Pi/2) = 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 $448, %rsp
movq __svml_dcos_data@GOTPCREL(%rip), %rax
vmovapd %ymm0, %ymm1
vmovupd __dInvPI(%rax), %ymm4
vmovupd __dRShifter(%rax), %ymm5
/*
ARGUMENT RANGE REDUCTION:
Add Pi/2 to argument: X' = X+Pi/2
*/
vaddpd __dHalfPI(%rax), %ymm1, %ymm7
/* Get absolute argument value: X' = |X'| */
vandpd __dAbsMask(%rax), %ymm7, %ymm2
/* Y = X'*InvPi + RS : right shifter add */
vfmadd213pd %ymm5, %ymm4, %ymm7
vmovupd __dC7(%rax), %ymm4
/* Check for large arguments path */
vcmpnle_uqpd __dRangeVal(%rax), %ymm2, %ymm3
/* N = Y - RS : right shifter sub */
vsubpd %ymm5, %ymm7, %ymm6
vmovupd __dPI1_FMA(%rax), %ymm2
/* SignRes = Y<<63 : shift LSB to MSB place for result sign */
vpsllq $63, %ymm7, %ymm7
/* N = N - 0.5 */
vsubpd __dOneHalf(%rax), %ymm6, %ymm0
vmovmskpd %ymm3, %ecx
/* R = X - N*Pi1 */
vmovapd %ymm1, %ymm3
vfnmadd231pd %ymm0, %ymm2, %ymm3
/* R = R - N*Pi2 */
vfnmadd231pd __dPI2_FMA(%rax), %ymm0, %ymm3
/* R = R - N*Pi3 */
vfnmadd132pd __dPI3_FMA(%rax), %ymm3, %ymm0
/* POLYNOMIAL APPROXIMATION: R2 = R*R */
vmulpd %ymm0, %ymm0, %ymm5
vfmadd213pd __dC6(%rax), %ymm5, %ymm4
vfmadd213pd __dC5(%rax), %ymm5, %ymm4
vfmadd213pd __dC4(%rax), %ymm5, %ymm4
/* Poly = C3+R2*(C4+R2*(C5+R2*(C6+R2*C7))) */
vfmadd213pd __dC3(%rax), %ymm5, %ymm4
/* Poly = R+R*(R2*(C1+R2*(C2+R2*Poly))) */
vfmadd213pd __dC2(%rax), %ymm5, %ymm4
vfmadd213pd __dC1(%rax), %ymm5, %ymm4
vmulpd %ymm5, %ymm4, %ymm6
vfmadd213pd %ymm0, %ymm0, %ymm6
/*
RECONSTRUCTION:
Final sign setting: Res = Poly^SignRes */
vxorpd %ymm7, %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
vmovupd %ymm1, 320(%rsp)
vmovupd %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
vmovupd 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
shlq $4, %r15
vmovsd 328(%rsp,%r15), %xmm0
vzeroupper
call cos@PLT
vmovsd %xmm0, 392(%rsp,%r15)
jmp .LBL_1_8
.LBL_1_12:
movzbl %r12b, %r15d
shlq $4, %r15
vmovsd 320(%rsp,%r15), %xmm0
vzeroupper
call cos@PLT
vmovsd %xmm0, 384(%rsp,%r15)
jmp .LBL_1_7
END (_ZGVdN4v_cos_avx2)

39
sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S Normal file
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/* Multiple versions of vectorized cos, vector length is 8.
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 (_ZGVeN8v_cos)
.type _ZGVeN8v_cos, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features(%rip)
jne 1
call __init_cpu_features
1: leaq _ZGVeN8v_cos_skx(%rip), %rax
testl $bit_AVX512DQ_Usable, __cpu_features+FEATURE_OFFSET+index_AVX512DQ_Usable(%rip)
jnz 3
2: leaq _ZGVeN8v_cos_knl(%rip), %rax
testl $bit_AVX512F_Usable, __cpu_features+FEATURE_OFFSET+index_AVX512F_Usable(%rip)
jnz 3
leaq _ZGVeN8v_cos_avx2_wrapper(%rip), %rax
3: ret
END (_ZGVeN8v_cos)
#define _ZGVeN8v_cos _ZGVeN8v_cos_avx2_wrapper
#include "../svml_d_cos8_core.S"

463
sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core_avx512.S Normal file
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/* Function cos 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_d_cos_data.h"
#include "svml_d_wrapper_impl.h"
.text
ENTRY (_ZGVeN8v_cos_knl)
#ifndef HAVE_AVX512_ASM_SUPPORT
WRAPPER_IMPL_AVX512 _ZGVdN4v_cos
#else
/*
ALGORITHM DESCRIPTION:
( low accuracy ( < 4ulp ) or enhanced performance
( half of correct mantissa ) implementation )
Argument representation:
arg + Pi/2 = (N*Pi + R)
Result calculation:
cos(arg) = sin(arg+Pi/2) = 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 $1280, %rsp
movq __svml_dcos_data@GOTPCREL(%rip), %rax
/* R = X - N*Pi1 */
vmovaps %zmm0, %zmm7
/* Check for large arguments path */
movq $-1, %rcx
/*
ARGUMENT RANGE REDUCTION:
Add Pi/2 to argument: X' = X+Pi/2
*/
vaddpd __dHalfPI(%rax), %zmm0, %zmm5
vmovups __dInvPI(%rax), %zmm3
/* Get absolute argument value: X' = |X'| */
vpandq __dAbsMask(%rax), %zmm5, %zmm1
/* Y = X'*InvPi + RS : right shifter add */
vfmadd213pd __dRShifter(%rax), %zmm3, %zmm5
vmovups __dPI1_FMA(%rax), %zmm6
/* N = Y - RS : right shifter sub */
vsubpd __dRShifter(%rax), %zmm5, %zmm4
/* SignRes = Y<<63 : shift LSB to MSB place for result sign */
vpsllq $63, %zmm5, %zmm12
vmovups __dC7(%rax), %zmm8
/* N = N - 0.5 */
vsubpd __dOneHalf(%rax), %zmm4, %zmm10
vcmppd $22, __dRangeVal(%rax), %zmm1, %k1
vpbroadcastq %rcx, %zmm2{%k1}{z}
vfnmadd231pd %zmm10, %zmm6, %zmm7
vptestmq %zmm2, %zmm2, %k0
/* R = R - N*Pi2 */
vfnmadd231pd __dPI2_FMA(%rax), %zmm10, %zmm7
kmovw %k0, %ecx
movzbl %cl, %ecx
/* R = R - N*Pi3 */
vfnmadd132pd __dPI3_FMA(%rax), %zmm7, %zmm10
/*
POLYNOMIAL APPROXIMATION:
R2 = R*R
*/
vmulpd %zmm10, %zmm10, %zmm9
vfmadd213pd __dC6(%rax), %zmm9, %zmm8
vfmadd213pd __dC5(%rax), %zmm9, %zmm8
vfmadd213pd __dC4(%rax), %zmm9, %zmm8
/* Poly = C3+R2*(C4+R2*(C5+R2*(C6+R2*C7))) */
vfmadd213pd __dC3(%rax), %zmm9, %zmm8
/* Poly = R+R*(R2*(C1+R2*(C2+R2*Poly))) */
vfmadd213pd __dC2(%rax), %zmm9, %zmm8
vfmadd213pd __dC1(%rax), %zmm9, %zmm8
vmulpd %zmm9, %zmm8, %zmm11
vfmadd213pd %zmm10, %zmm10, %zmm11
/*
RECONSTRUCTION:
Final sign setting: Res = Poly^SignRes
*/
vpxorq %zmm12, %zmm11, %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
shlq $4, %r15
vmovsd 1160(%rsp,%r15), %xmm0
call cos@PLT
vmovsd %xmm0, 1224(%rsp,%r15)
jmp .LBL_1_8
.LBL_1_12:
movzbl %r12b, %r15d
shlq $4, %r15
vmovsd 1152(%rsp,%r15), %xmm0
call cos@PLT
vmovsd %xmm0, 1216(%rsp,%r15)
jmp .LBL_1_7
#endif
END (_ZGVeN8v_cos_knl)
ENTRY (_ZGVeN8v_cos_skx)
#ifndef HAVE_AVX512_ASM_SUPPORT
WRAPPER_IMPL_AVX512 _ZGVdN4v_cos
#else
/*
ALGORITHM DESCRIPTION:
( low accuracy ( < 4ulp ) or enhanced performance
( half of correct mantissa ) implementation )
Argument representation:
arg + Pi/2 = (N*Pi + R)
Result calculation:
cos(arg) = sin(arg+Pi/2) = 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 $1280, %rsp
movq __svml_dcos_data@GOTPCREL(%rip), %rax
/* R = X - N*Pi1 */
vmovaps %zmm0, %zmm8
/* Check for large arguments path */
vpbroadcastq .L_2il0floatpacket.16(%rip), %zmm2
/*
ARGUMENT RANGE REDUCTION:
Add Pi/2 to argument: X' = X+Pi/2
*/
vaddpd __dHalfPI(%rax), %zmm0, %zmm6
vmovups __dInvPI(%rax), %zmm3
vmovups __dRShifter(%rax), %zmm4
vmovups __dPI1_FMA(%rax), %zmm7
vmovups __dC7(%rax), %zmm9
/* Get absolute argument value: X' = |X'| */
vandpd __dAbsMask(%rax), %zmm6, %zmm1
/* Y = X'*InvPi + RS : right shifter add */
vfmadd213pd %zmm4, %zmm3, %zmm6
vcmppd $18, __dRangeVal(%rax), %zmm1, %k1
/* SignRes = Y<<63 : shift LSB to MSB place for result sign */
vpsllq $63, %zmm6, %zmm13
/* N = Y - RS : right shifter sub */
vsubpd %zmm4, %zmm6, %zmm5
/* N = N - 0.5 */
vsubpd __dOneHalf(%rax), %zmm5, %zmm11
vfnmadd231pd %zmm11, %zmm7, %zmm8
/* R = R - N*Pi2 */
vfnmadd231pd __dPI2_FMA(%rax), %zmm11, %zmm8
/* R = R - N*Pi3 */
vfnmadd132pd __dPI3_FMA(%rax), %zmm8, %zmm11
/*
POLYNOMIAL APPROXIMATION:
R2 = R*R
*/
vmulpd %zmm11, %zmm11, %zmm10
vfmadd213pd __dC6(%rax), %zmm10, %zmm9
vfmadd213pd __dC5(%rax), %zmm10, %zmm9
vfmadd213pd __dC4(%rax), %zmm10, %zmm9
/* Poly = C3+R2*(C4+R2*(C5+R2*(C6+R2*C7))) */
vfmadd213pd __dC3(%rax), %zmm10, %zmm9
/* Poly = R+R*(R2*(C1+R2*(C2+R2*Poly))) */
vfmadd213pd __dC2(%rax), %zmm10, %zmm9
vfmadd213pd __dC1(%rax), %zmm10, %zmm9
vmulpd %zmm10, %zmm9, %zmm12
vfmadd213pd %zmm11, %zmm11, %zmm12
vpandnq %zmm1, %zmm1, %zmm2{%k1}
vcmppd $3, %zmm2, %zmm2, %k0
/*
RECONSTRUCTION:
Final sign setting: Res = Poly^SignRes
*/
vxorpd %zmm13, %zmm12, %zmm1
kmovw %k0, %ecx
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
shlq $4, %r15
vmovsd 1160(%rsp,%r15), %xmm0
vzeroupper
vmovsd 1160(%rsp,%r15), %xmm0
call cos@PLT
vmovsd %xmm0, 1224(%rsp,%r15)
jmp .LBL_2_8
.LBL_2_12:
movzbl %r12b, %r15d
shlq $4, %r15
vmovsd 1152(%rsp,%r15), %xmm0
vzeroupper
vmovsd 1152(%rsp,%r15), %xmm0
call cos@PLT
vmovsd %xmm0, 1216(%rsp,%r15)
jmp .LBL_2_7
#endif
END (_ZGVeN8v_cos_skx)
.section .rodata, "a"
.L_2il0floatpacket.16:
.long 0xffffffff,0xffffffff
.type .L_2il0floatpacket.16,@object

30
sysdeps/x86_64/fpu/svml_d_cos2_core.S Normal file
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@ -0,0 +1,30 @@
/* Function cos 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_d_cos_data.h"
#include "svml_d_wrapper_impl.h"
.text
ENTRY (_ZGVbN2v_cos)
WRAPPER_IMPL_SSE2 cos
END (_ZGVbN2v_cos)
#ifndef USE_MULTIARCH
libmvec_hidden_def (_ZGVbN2v_cos)
#endif

30
sysdeps/x86_64/fpu/svml_d_cos4_core.S Normal file
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@ -0,0 +1,30 @@
/* Function cos 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_d_cos_data.h"
#include "svml_d_wrapper_impl.h"
.text
ENTRY (_ZGVdN4v_cos)
WRAPPER_IMPL_AVX _ZGVbN2v_cos
END (_ZGVdN4v_cos)
#ifndef USE_MULTIARCH
libmvec_hidden_def (_ZGVdN4v_cos)
#endif

25
sysdeps/x86_64/fpu/svml_d_cos4_core_avx.S Normal file
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/* Function cos 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_d_wrapper_impl.h"
.text
ENTRY (_ZGVcN4v_cos)
WRAPPER_IMPL_AVX _ZGVbN2v_cos
END (_ZGVcN4v_cos)

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sysdeps/x86_64/fpu/svml_d_cos8_core.S Normal file
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/* Function cos vectorized with AVX-512, wrapper to 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_d_cos_data.h"
#include "svml_d_wrapper_impl.h"
.text
ENTRY (_ZGVeN8v_cos)
WRAPPER_IMPL_AVX512 _ZGVdN4v_cos
END (_ZGVeN8v_cos)

114
sysdeps/x86_64/fpu/svml_d_cos_data.S Normal file
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/* Data for vectorized cos.
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_d_cos_data.h"
.macro double_vector offset value
.if .-__svml_dcos_data != \offset
.err
.endif
.rept 8
.quad \value
.endr
.endm
.section .rodata, "a"
.align 64
/* Data table for vector implementations of function cos.
The table may contain polynomial, reduction, lookup
coefficients and other constants obtained through different
methods of research and experimental work.
*/
.globl __svml_dcos_data
__svml_dcos_data:
/* General purpose constants:
absolute value mask
*/
double_vector __dAbsMask 0x7fffffffffffffff
/* working range threshold */
double_vector __dRangeVal 0x4160000000000000
/* PI/2 */
double_vector __dHalfPI 0x3ff921fb54442d18
/* 1/PI */
double_vector __dInvPI 0x3fd45f306dc9c883
/* right-shifter constant */
double_vector __dRShifter 0x4338000000000000
/* 0.5 */
double_vector __dOneHalf 0x3fe0000000000000
/* Range reduction PI-based constants:
PI high part
*/
double_vector __dPI1 0x400921fb40000000
/* PI mid part 1 */
double_vector __dPI2 0x3e84442d00000000
/* PI mid part 2 */
double_vector __dPI3 0x3d08469880000000
/* PI low part */
double_vector __dPI4 0x3b88cc51701b839a
/* Range reduction PI-based constants if FMA available:
PI high part (FMA available)
*/
double_vector __dPI1_FMA 0x400921fb54442d18
/* PI mid part (FMA available) */
double_vector __dPI2_FMA 0x3ca1a62633145c06
/* PI low part (FMA available) */
double_vector __dPI3_FMA 0x395c1cd129024e09
/* Polynomial coefficients (relative error 2^(-52.115)): */
double_vector __dC1 0xbfc55555555554a7
double_vector __dC2 0x3f8111111110a4a8
double_vector __dC3 0xbf2a01a019a5b86d
double_vector __dC4 0x3ec71de38030fea0
double_vector __dC5 0xbe5ae63546002231
double_vector __dC6 0x3de60e6857a2f220
double_vector __dC7 0xbd69f0d60811aac8
/*
Additional constants:
absolute value mask
*/
double_vector __dAbsMask_la 0x7fffffffffffffff
/* 1/PI */
double_vector __dInvPI_la 0x3fd45f306dc9c883
/* right-shifer for low accuracy version */
double_vector __dRShifter_la 0x4330000000000000
/* right-shifer-1.0 for low accuracy version */
double_vector __dRShifterm5_la 0x432fffffffffffff
/* right-shifer with low mask for low accuracy version */
double_vector __dRXmax_la 0x43300000007ffffe
.type __svml_dcos_data,@object
.size __svml_dcos_data,.-__svml_dcos_data

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sysdeps/x86_64/fpu/svml_d_cos_data.h Normal file
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/* Offsets for data table for vectorized cos.
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 D_COS_DATA_H
#define D_COS_DATA_H
#define __dAbsMask 0
#define __dRangeVal 64
#define __dHalfPI 128
#define __dInvPI 192
#define __dRShifter 256
#define __dOneHalf 320
#define __dPI1 384
#define __dPI2 448
#define __dPI3 512
#define __dPI4 576
#define __dPI1_FMA 640
#define __dPI2_FMA 704
#define __dPI3_FMA 768
#define __dC1 832
#define __dC2 896
#define __dC3 960
#define __dC4 1024
#define __dC5 1088
#define __dC6 1152
#define __dC7 1216
#define __dAbsMask_la 1280
#define __dInvPI_la 1344
#define __dRShifter_la 1408
#define __dRShifterm5_la 1472
#define __dRXmax_la 1536
#endif

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sysdeps/x86_64/fpu/svml_d_wrapper_impl.h Normal file
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/* Wrapper implementations of vector math functions.
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/>. */
/* SSE2 ISA version as wrapper to scalar. */
.macro WRAPPER_IMPL_SSE2 callee
subq $40, %rsp
cfi_adjust_cfa_offset(40)
movaps %xmm0, (%rsp)
call \callee@PLT
movsd %xmm0, 16(%rsp)
movsd 8(%rsp), %xmm0
call \callee@PLT
movsd 16(%rsp), %xmm1
movsd %xmm0, 24(%rsp)
unpcklpd %xmm0, %xmm1
movaps %xmm1, %xmm0
addq $40, %rsp
cfi_adjust_cfa_offset(-40)
ret
.endm
/* AVX/AVX2 ISA version as wrapper to SSE ISA version. */
.macro WRAPPER_IMPL_AVX callee
pushq %rbp
cfi_adjust_cfa_offset (8)
cfi_rel_offset (%rbp, 0)
movq %rsp, %rbp
cfi_def_cfa_register (%rbp)
andq $-32, %rsp
subq $32, %rsp
vextractf128 $1, %ymm0, (%rsp)
vzeroupper
call HIDDEN_JUMPTARGET(\callee)
vmovapd %xmm0, 16(%rsp)
vmovaps (%rsp), %xmm0
call HIDDEN_JUMPTARGET(\callee)
vmovapd %xmm0, %xmm1
vmovapd 16(%rsp), %xmm0
vinsertf128 $1, %xmm1, %ymm0, %ymm0
movq %rbp, %rsp
cfi_def_cfa_register (%rsp)
popq %rbp
cfi_adjust_cfa_offset (-8)
cfi_restore (%rbp)
ret
.endm
/* AVX512 ISA version as wrapper to AVX2 ISA version. */
.macro WRAPPER_IMPL_AVX512 callee
pushq %rbp
cfi_adjust_cfa_offset (8)
cfi_rel_offset (%rbp, 0)
movq %rsp, %rbp
cfi_def_cfa_register (%rbp)
andq $-64, %rsp
subq $64, %rsp
/* Below is encoding for vmovaps %zmm0, (%rsp). */
.byte 0x62
.byte 0xf1
.byte 0x7c
.byte 0x48
.byte 0x29
.byte 0x04
.byte 0x24
/* Below is encoding for vmovapd (%rsp), %ymm0. */
.byte 0xc5
.byte 0xfd
.byte 0x28
.byte 0x04
.byte 0x24
call HIDDEN_JUMPTARGET(\callee)
/* Below is encoding for vmovapd 32(%rsp), %ymm0. */
.byte 0xc5
.byte 0xfd
.byte 0x28
.byte 0x44
.byte 0x24
.byte 0x20
call HIDDEN_JUMPTARGET(\callee)
movq %rbp, %rsp
cfi_def_cfa_register (%rsp)
popq %rbp
cfi_adjust_cfa_offset (-8)
cfi_restore (%rbp)
ret
.endm

7
sysdeps/x86_64/sysdep.h
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/* Syntactic details of assembler. */
/* This macro is for setting proper CFI with DW_CFA_expression describing
the register as saved relative to %rsp instead of relative to the CFA.
Expression is DW_OP_drop, DW_OP_breg7 (%rsp is register 7), sleb128 offset
from %rsp. */
#define cfi_offset_rel_rsp(regn, off) .cfi_escape 0x10, regn, 0x4, 0x13, \
0x77, off & 0x7F | 0x80, off >> 7
/* ELF uses byte-counts for .align, most others use log2 of count of bytes. */
#define ALIGNARG(log2) 1<<log2
#define ASM_SIZE_DIRECTIVE(name) .size name,.-name;