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.

7 files changed, 1013 insertions, 0 deletions

diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile
index 12b0526..b2f3266 100644
--- a/sysdeps/x86_64/fpu/multiarch/Makefile
+++ b/sysdeps/x86_64/fpu/multiarch/Makefile
@@ -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
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core.S b/sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core.S
new file mode 100644
index 0000000..5f67d83
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core.S
@@ -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"
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core_sse4.S b/sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core_sse4.S
new file mode 100644
index 0000000..11348a3
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_d_cos2_core_sse4.S
@@ -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)
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core.S b/sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core.S
new file mode 100644
index 0000000..5babb83
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core.S
@@ -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"
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S b/sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S
new file mode 100644
index 0000000..f192ba0
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S
@@ -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)
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S b/sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S
new file mode 100644
index 0000000..ba3b66f
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core.S
@@ -0,0 +1,39 @@
+/* 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"
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core_avx512.S b/sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core_avx512.S
new file mode 100644
index 0000000..14695ec
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_d_cos8_core_avx512.S
@@ -0,0 +1,463 @@
+/* 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