Vector expf for x86_64 and tests.

Here is implementation of vectorized expf 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 expf.
    * 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_expf16_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core_avx512.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core_sse4.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core.S: New file.
    * sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core_avx2.S: New file.
    * sysdeps/x86_64/fpu/svml_s_expf16_core.S: New file.
    * sysdeps/x86_64/fpu/svml_s_expf4_core.S: New file.
    * sysdeps/x86_64/fpu/svml_s_expf8_core.S: New file.
    * sysdeps/x86_64/fpu/svml_s_expf8_core_avx.S: New file.
    * sysdeps/x86_64/fpu/svml_s_expf_data.S: New file.
    * sysdeps/x86_64/fpu/svml_s_expf_data.h: New file.
    * sysdeps/x86_64/fpu/test-float-vlen16-wrappers.c: Vector expf 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 expf.

7 files changed, 978 insertions, 1 deletions

diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile
index d6355ae98d..9e1025136f 100644
--- a/sysdeps/x86_64/fpu/multiarch/Makefile
+++ b/sysdeps/x86_64/fpu/multiarch/Makefile
@@ -63,5 +63,7 @@ libmvec-sysdep_routines += svml_d_cos2_core_sse4 svml_d_cos4_core_avx2 \
 			   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 svml_d_exp2_core_sse4 \
-			   svml_d_exp4_core_avx2 svml_d_exp8_core_avx512
+			   svml_d_exp4_core_avx2 svml_d_exp8_core_avx512 \
+			   svml_s_expf4_core_sse4 svml_s_expf8_core_avx2 \
+			   svml_s_expf16_core_avx512
 endif
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core.S b/sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core.S
new file mode 100644
index 0000000000..3b3489d05a
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core.S
@@ -0,0 +1,39 @@
+/* Multiple versions of vectorized expf.
+   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_expf)
+        .type   _ZGVeN16v_expf, @gnu_indirect_function
+        cmpl    $0, KIND_OFFSET+__cpu_features(%rip)
+        jne     1
+        call    __init_cpu_features
+1:      leaq    _ZGVeN16v_expf_skx(%rip), %rax
+        testl   $bit_AVX512DQ_Usable, __cpu_features+FEATURE_OFFSET+index_AVX512DQ_Usable(%rip)
+        jnz     3
+2:      leaq    _ZGVeN16v_expf_knl(%rip), %rax
+        testl   $bit_AVX512F_Usable, __cpu_features+FEATURE_OFFSET+index_AVX512F_Usable(%rip)
+        jnz     3
+        leaq    _ZGVeN16v_expf_avx2_wrapper(%rip), %rax
+3:      ret
+END (_ZGVeN16v_expf)
+
+#define _ZGVeN16v_expf _ZGVeN16v_expf_avx2_wrapper
+#include "../svml_s_expf16_core.S"
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core_avx512.S b/sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core_avx512.S
new file mode 100644
index 0000000000..cb807e0757
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core_avx512.S
@@ -0,0 +1,446 @@
+/* Function expf 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_expf_data.h"
+#include "svml_s_wrapper_impl.h"
+
+	.text
+ENTRY (_ZGVeN16v_expf_knl)
+#ifndef HAVE_AVX512_ASM_SUPPORT
+WRAPPER_IMPL_AVX512 _ZGVdN8v_expf
+#else
+/*
+   ALGORITHM DESCRIPTION:
+
+     Argument representation:
+     M = rint(X*2^k/ln2) = 2^k*N+j
+     X = M*ln2/2^k + r = N*ln2 + ln2*(j/2^k) + r
+     then -ln2/2^(k+1) < r < ln2/2^(k+1)
+     Alternatively:
+     M = trunc(X*2^k/ln2)
+     then 0 < r < ln2/2^k
+
+     Result calculation:
+     exp(X) = exp(N*ln2 + ln2*(j/2^k) + r)
+     = 2^N * 2^(j/2^k) * exp(r)
+     2^N is calculated by bit manipulation
+     2^(j/2^k) is computed from table lookup
+     exp(r) is approximated by polynomial
+
+     The table lookup is skipped if k = 0.
+     For low accuracy approximation, exp(r) ~ 1 or 1+r.  */
+
+        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_sexp_data@GOTPCREL(%rip), %rax
+
+/* r = x-n*ln2_hi/2^k */
+        vmovaps   %zmm0, %zmm6
+
+/* compare against threshold */
+        movl      $-1, %ecx
+        vmovups   __sInvLn2(%rax), %zmm3
+        vmovups   __sLn2hi(%rax), %zmm5
+
+/* m = x*2^k/ln2 + shifter */
+        vfmadd213ps __sShifter(%rax), %zmm0, %zmm3
+        vmovups     __sPC5(%rax), %zmm9
+
+/* n = m - shifter = rint(x*2^k/ln2) */
+        vsubps    __sShifter(%rax), %zmm3, %zmm7
+
+/* remove sign of x by "and" operation */
+        vpandd   __iAbsMask(%rax), %zmm0, %zmm1
+        vpaddd   __iBias(%rax), %zmm3, %zmm4
+        vpcmpgtd __iDomainRange(%rax), %zmm1, %k1
+
+/* compute 2^N with "shift" */
+        vpslld       $23, %zmm4, %zmm8
+        vfnmadd231ps %zmm7, %zmm5, %zmm6
+        vpbroadcastd %ecx, %zmm2{%k1}{z}
+
+/* r = r-n*ln2_lo/2^k = x - n*ln2/2^k */
+        vfnmadd132ps __sLn2lo(%rax), %zmm6, %zmm7
+
+/* set mask for overflow/underflow */
+        vptestmd  %zmm2, %zmm2, %k0
+        kmovw     %k0, %ecx
+
+/* c5*r+c4 */
+        vfmadd213ps __sPC4(%rax), %zmm7, %zmm9
+
+/* (c5*r+c4)*r+c3 */
+        vfmadd213ps __sPC3(%rax), %zmm7, %zmm9
+
+/* ((c5*r+c4)*r+c3)*r+c2 */
+        vfmadd213ps __sPC2(%rax), %zmm7, %zmm9
+
+/* (((c5*r+c4)*r+c3)*r+c2)*r+c1 */
+        vfmadd213ps __sPC1(%rax), %zmm7, %zmm9
+
+/* exp(r) = ((((c5*r+c4)*r+c3)*r+c2)*r+c1)*r+c0 */
+        vfmadd213ps __sPC0(%rax), %zmm7, %zmm9
+
+/* 2^N*exp(r) */
+        vmulps    %zmm9, %zmm8, %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      expf@PLT
+        vmovss    %xmm0, 1220(%rsp,%r15,8)
+        jmp       .LBL_1_8
+
+.LBL_1_12:
+        movzbl    %r12b, %r15d
+        vmovss    1152(%rsp,%r15,8), %xmm0
+        call      expf@PLT
+        vmovss    %xmm0, 1216(%rsp,%r15,8)
+        jmp       .LBL_1_7
+
+#endif
+END (_ZGVeN16v_expf_knl)
+
+ENTRY (_ZGVeN16v_expf_skx)
+#ifndef HAVE_AVX512_ASM_SUPPORT
+WRAPPER_IMPL_AVX512 _ZGVdN8v_expf
+#else
+/*
+   ALGORITHM DESCRIPTION:
+
+     Argument representation:
+     M = rint(X*2^k/ln2) = 2^k*N+j
+     X = M*ln2/2^k + r = N*ln2 + ln2*(j/2^k) + r
+     then -ln2/2^(k+1) < r < ln2/2^(k+1)
+     Alternatively:
+     M = trunc(X*2^k/ln2)
+     then 0 < r < ln2/2^k
+
+     Result calculation:
+     exp(X) = exp(N*ln2 + ln2*(j/2^k) + r)
+     = 2^N * 2^(j/2^k) * exp(r)
+     2^N is calculated by bit manipulation
+     2^(j/2^k) is computed from table lookup
+     exp(r) is approximated by polynomial
+
+     The table lookup is skipped if k = 0.
+     For low accuracy approximation, exp(r) ~ 1 or 1+r.  */
+
+        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_sexp_data@GOTPCREL(%rip), %rax
+
+/* r = x-n*ln2_hi/2^k */
+        vmovaps   %zmm0, %zmm7
+
+/* compare against threshold */
+        vmovups   .L_2il0floatpacket.13(%rip), %zmm3
+        vmovups __sInvLn2(%rax), %zmm4
+        vmovups __sShifter(%rax), %zmm1
+        vmovups __sLn2hi(%rax), %zmm6
+        vmovups __sPC5(%rax), %zmm10
+
+/* m = x*2^k/ln2 + shifter */
+        vfmadd213ps %zmm1, %zmm0, %zmm4
+
+/* n = m - shifter = rint(x*2^k/ln2) */
+        vsubps    %zmm1, %zmm4, %zmm8
+        vpaddd __iBias(%rax), %zmm4, %zmm5
+        vfnmadd231ps %zmm8, %zmm6, %zmm7
+
+/* compute 2^N with "shift" */
+        vpslld    $23, %zmm5, %zmm9
+
+/* r = r-n*ln2_lo/2^k = x - n*ln2/2^k */
+        vfnmadd132ps __sLn2lo(%rax), %zmm7, %zmm8
+
+/* c5*r+c4 */
+        vfmadd213ps __sPC4(%rax), %zmm8, %zmm10
+
+/* (c5*r+c4)*r+c3 */
+        vfmadd213ps __sPC3(%rax), %zmm8, %zmm10
+
+/* ((c5*r+c4)*r+c3)*r+c2 */
+        vfmadd213ps __sPC2(%rax), %zmm8, %zmm10
+
+/* (((c5*r+c4)*r+c3)*r+c2)*r+c1 */
+        vfmadd213ps __sPC1(%rax), %zmm8, %zmm10
+
+/* exp(r) = ((((c5*r+c4)*r+c3)*r+c2)*r+c1)*r+c0 */
+        vfmadd213ps __sPC0(%rax), %zmm8, %zmm10
+
+/* 2^N*exp(r) */
+        vmulps    %zmm10, %zmm9, %zmm1
+
+/* remove sign of x by "and" operation */
+        vpandd __iAbsMask(%rax), %zmm0, %zmm2
+        vpcmpd    $2, __iDomainRange(%rax), %zmm2, %k1
+        vpandnd   %zmm2, %zmm2, %zmm3{%k1}
+
+/* set mask for overflow/underflow */
+        vptestmd  %zmm3, %zmm3, %k0
+        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
+        vmovss    1156(%rsp,%r15,8), %xmm0
+        vzeroupper
+        vmovss    1156(%rsp,%r15,8), %xmm0
+
+        call      expf@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      expf@PLT
+
+        vmovss    %xmm0, 1216(%rsp,%r15,8)
+        jmp       .LBL_2_7
+
+#endif
+END (_ZGVeN16v_expf_skx)
+
+	.section .rodata, "a"
+.L_2il0floatpacket.13:
+	.long	0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff
+	.type	.L_2il0floatpacket.13,@object
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core.S b/sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core.S
new file mode 100644
index 0000000000..37d38bc6f8
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core.S
@@ -0,0 +1,38 @@
+/* Multiple versions of vectorized expf.
+   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_expf)
+        .type   _ZGVbN4v_expf, @gnu_indirect_function
+        cmpl    $0, KIND_OFFSET+__cpu_features(%rip)
+        jne     1f
+        call    __init_cpu_features
+1:      leaq    _ZGVbN4v_expf_sse4(%rip), %rax
+        testl   $bit_SSE4_1, __cpu_features+CPUID_OFFSET+index_SSE4_1(%rip)
+        jz      2f
+        ret
+2:      leaq    _ZGVbN4v_expf_sse2(%rip), %rax
+        ret
+END (_ZGVbN4v_expf)
+libmvec_hidden_def (_ZGVbN4v_expf)
+
+#define _ZGVbN4v_expf _ZGVbN4v_expf_sse2
+#include "../svml_s_expf4_core.S"
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core_sse4.S b/sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core_sse4.S
new file mode 100644
index 0000000000..fcc1859c3a
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_s_expf4_core_sse4.S
@@ -0,0 +1,212 @@
+/* Function expf 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_expf_data.h"
+
+	.text
+ENTRY (_ZGVbN4v_expf_sse4)
+/*
+   ALGORITHM DESCRIPTION:
+
+     Argument representation:
+     M = rint(X*2^k/ln2) = 2^k*N+j
+     X = M*ln2/2^k + r = N*ln2 + ln2*(j/2^k) + r
+     then -ln2/2^(k+1) < r < ln2/2^(k+1)
+     Alternatively:
+     M = trunc(X*2^k/ln2)
+     then 0 < r < ln2/2^k
+
+     Result calculation:
+     exp(X) = exp(N*ln2 + ln2*(j/2^k) + r)
+     = 2^N * 2^(j/2^k) * exp(r)
+     2^N is calculated by bit manipulation
+     2^(j/2^k) is computed from table lookup
+     exp(r) is approximated by polynomial
+
+     The table lookup is skipped if k = 0.
+     For low accuracy approximation, exp(r) ~ 1 or 1+r.  */
+
+        pushq     %rbp
+        cfi_adjust_cfa_offset (8)
+        cfi_rel_offset (%rbp, 0)
+        movq      %rsp, %rbp
+        cfi_def_cfa_register (%rbp)
+        andq      $-64, %rsp
+        subq      $320, %rsp
+        movaps    %xmm0, %xmm5
+        movq      __svml_sexp_data@GOTPCREL(%rip), %rax
+        movups __sInvLn2(%rax), %xmm0
+
+/* m = x*2^k/ln2 + shifter */
+        mulps     %xmm5, %xmm0
+        movups __sShifter(%rax), %xmm6
+        movups __sLn2hi(%rax), %xmm4
+        addps     %xmm6, %xmm0
+
+/* n = m - shifter = rint(x*2^k/ln2) */
+        movaps    %xmm0, %xmm2
+
+/* remove sign of x by "and" operation */
+        movdqu __iAbsMask(%rax), %xmm7
+        subps     %xmm6, %xmm2
+
+/* r = x-n*ln2_hi/2^k */
+        mulps     %xmm2, %xmm4
+        pand      %xmm5, %xmm7
+
+/* compare against threshold */
+        pcmpgtd __iDomainRange(%rax), %xmm7
+        movups __sLn2lo(%rax), %xmm1
+
+/* set mask for overflow/underflow */
+        movmskps  %xmm7, %ecx
+        movaps    %xmm5, %xmm7
+        movups __sPC5(%rax), %xmm3
+        subps     %xmm4, %xmm7
+
+/* r = r-n*ln2_lo/2^k = x - n*ln2/2^k */
+        mulps     %xmm1, %xmm2
+
+/* compute 2^N with "shift" */
+        movdqu __iBias(%rax), %xmm6
+        subps     %xmm2, %xmm7
+
+/* c5*r+c4 */
+        mulps     %xmm7, %xmm3
+        paddd     %xmm6, %xmm0
+        pslld     $23, %xmm0
+        addps __sPC4(%rax), %xmm3
+
+/* (c5*r+c4)*r+c3 */
+        mulps     %xmm7, %xmm3
+        addps __sPC3(%rax), %xmm3
+
+/* ((c5*r+c4)*r+c3)*r+c2 */
+        mulps     %xmm7, %xmm3
+        addps __sPC2(%rax), %xmm3
+
+/* (((c5*r+c4)*r+c3)*r+c2)*r+c1 */
+        mulps     %xmm7, %xmm3
+        addps __sPC1(%rax), %xmm3
+
+/* exp(r) = ((((c5*r+c4)*r+c3)*r+c2)*r+c1)*r+c0 */
+        mulps     %xmm3, %xmm7
+        addps __sPC0(%rax), %xmm7
+
+/* 2^N*exp(r) */
+        mulps     %xmm7, %xmm0
+        testl     %ecx, %ecx
+        jne       .LBL_1_3
+
+.LBL_1_2:
+        cfi_remember_state
+        movq      %rbp, %rsp
+        cfi_def_cfa_register (%rsp)
+        popq      %rbp
+        cfi_adjust_cfa_offset (-8)
+        cfi_restore (%rbp)
+        ret
+
+.LBL_1_3:
+        cfi_restore_state
+        movups    %xmm5, 192(%rsp)
+        movups    %xmm0, 256(%rsp)
+        je        .LBL_1_2
+
+        xorb      %dl, %dl
+        xorl      %eax, %eax
+        movups    %xmm8, 112(%rsp)
+        movups    %xmm9, 96(%rsp)
+        movups    %xmm10, 80(%rsp)
+        movups    %xmm11, 64(%rsp)
+        movups    %xmm12, 48(%rsp)
+        movups    %xmm13, 32(%rsp)
+        movups    %xmm14, 16(%rsp)
+        movups    %xmm15, (%rsp)
+        movq      %rsi, 136(%rsp)
+        movq      %rdi, 128(%rsp)
+        movq      %r12, 168(%rsp)
+        cfi_offset_rel_rsp (12, 168)
+        movb      %dl, %r12b
+        movq      %r13, 160(%rsp)
+        cfi_offset_rel_rsp (13, 160)
+        movl      %ecx, %r13d
+        movq      %r14, 152(%rsp)
+        cfi_offset_rel_rsp (14, 152)
+        movl      %eax, %r14d
+        movq      %r15, 144(%rsp)
+        cfi_offset_rel_rsp (15, 144)
+        cfi_remember_state
+
+.LBL_1_6:
+        btl       %r14d, %r13d
+        jc        .LBL_1_12
+
+.LBL_1_7:
+        lea       1(%r14), %esi
+        btl       %esi, %r13d
+        jc        .LBL_1_10
+
+.LBL_1_8:
+        incb      %r12b
+        addl      $2, %r14d
+        cmpb      $16, %r12b
+        jb        .LBL_1_6
+
+        movups    112(%rsp), %xmm8
+        movups    96(%rsp), %xmm9
+        movups    80(%rsp), %xmm10
+        movups    64(%rsp), %xmm11
+        movups    48(%rsp), %xmm12
+        movups    32(%rsp), %xmm13
+        movups    16(%rsp), %xmm14
+        movups    (%rsp), %xmm15
+        movq      136(%rsp), %rsi
+        movq      128(%rsp), %rdi
+        movq      168(%rsp), %r12
+        cfi_restore (%r12)
+        movq      160(%rsp), %r13
+        cfi_restore (%r13)
+        movq      152(%rsp), %r14
+        cfi_restore (%r14)
+        movq      144(%rsp), %r15
+        cfi_restore (%r15)
+        movups    256(%rsp), %xmm0
+        jmp       .LBL_1_2
+
+.LBL_1_10:
+        cfi_restore_state
+        movzbl    %r12b, %r15d
+        movss     196(%rsp,%r15,8), %xmm0
+
+        call      expf@PLT
+
+        movss     %xmm0, 260(%rsp,%r15,8)
+        jmp       .LBL_1_8
+
+.LBL_1_12:
+        movzbl    %r12b, %r15d
+        movss     192(%rsp,%r15,8), %xmm0
+
+        call      expf@PLT
+
+        movss     %xmm0, 256(%rsp,%r15,8)
+        jmp       .LBL_1_7
+
+END (_ZGVbN4v_expf_sse4)
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core.S b/sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core.S
new file mode 100644
index 0000000000..e3dc1b1038
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core.S
@@ -0,0 +1,38 @@
+/* Multiple versions of vectorized expf.
+   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_expf)
+        .type   _ZGVdN8v_expf, @gnu_indirect_function
+        cmpl    $0, KIND_OFFSET+__cpu_features(%rip)
+        jne     1f
+        call    __init_cpu_features
+1:      leaq    _ZGVdN8v_expf_avx2(%rip), %rax
+        testl   $bit_AVX2_Usable, __cpu_features+FEATURE_OFFSET+index_AVX2_Usable(%rip)
+        jz      2f
+        ret
+2:      leaq    _ZGVdN8v_expf_sse_wrapper(%rip), %rax
+        ret
+END (_ZGVdN8v_expf)
+libmvec_hidden_def (_ZGVdN8v_expf)
+
+#define _ZGVdN8v_expf _ZGVdN8v_expf_sse_wrapper
+#include "../svml_s_expf8_core.S"
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core_avx2.S b/sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core_avx2.S
new file mode 100644
index 0000000000..c876ecc03e
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_s_expf8_core_avx2.S
@@ -0,0 +1,202 @@
+/* Function expf 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_expf_data.h"
+
+	.text
+ENTRY(_ZGVdN8v_expf_avx2)
+/*
+   ALGORITHM DESCRIPTION:
+
+     Argument representation:
+     M = rint(X*2^k/ln2) = 2^k*N+j
+     X = M*ln2/2^k + r = N*ln2 + ln2*(j/2^k) + r
+     then -ln2/2^(k+1) < r < ln2/2^(k+1)
+     Alternatively:
+     M = trunc(X*2^k/ln2)
+     then 0 < r < ln2/2^k
+
+     Result calculation:
+     exp(X) = exp(N*ln2 + ln2*(j/2^k) + r)
+     = 2^N * 2^(j/2^k) * exp(r)
+     2^N is calculated by bit manipulation
+     2^(j/2^k) is computed from table lookup
+     exp(r) is approximated by polynomial
+
+     The table lookup is skipped if k = 0.
+     For low accuracy approximation, exp(r) ~ 1 or 1+r.  */
+
+        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_sexp_data@GOTPCREL(%rip), %rax
+        vmovaps   %ymm0, %ymm2
+        vmovups __sInvLn2(%rax), %ymm7
+        vmovups __sShifter(%rax), %ymm4
+        vmovups __sLn2hi(%rax), %ymm3
+        vmovups __sPC5(%rax), %ymm1
+
+/* m = x*2^k/ln2 + shifter */
+        vfmadd213ps %ymm4, %ymm2, %ymm7
+
+/* n = m - shifter = rint(x*2^k/ln2) */
+        vsubps    %ymm4, %ymm7, %ymm0
+        vpaddd __iBias(%rax), %ymm7, %ymm4
+
+/* remove sign of x by "and" operation */
+        vandps __iAbsMask(%rax), %ymm2, %ymm5
+
+/* compare against threshold */
+        vpcmpgtd __iDomainRange(%rax), %ymm5, %ymm6
+
+/* r = x-n*ln2_hi/2^k */
+        vmovaps   %ymm2, %ymm5
+        vfnmadd231ps %ymm0, %ymm3, %ymm5
+
+/* r = r-n*ln2_lo/2^k = x - n*ln2/2^k */
+        vfnmadd132ps __sLn2lo(%rax), %ymm5, %ymm0
+
+/* c5*r+c4 */
+        vfmadd213ps __sPC4(%rax), %ymm0, %ymm1
+
+/* (c5*r+c4)*r+c3 */
+        vfmadd213ps __sPC3(%rax), %ymm0, %ymm1
+
+/* ((c5*r+c4)*r+c3)*r+c2 */
+        vfmadd213ps __sPC2(%rax), %ymm0, %ymm1
+
+/* (((c5*r+c4)*r+c3)*r+c2)*r+c1 */
+        vfmadd213ps __sPC1(%rax), %ymm0, %ymm1
+
+/* exp(r) = ((((c5*r+c4)*r+c3)*r+c2)*r+c1)*r+c0 */
+        vfmadd213ps __sPC0(%rax), %ymm0, %ymm1
+
+/* set mask for overflow/underflow */
+        vmovmskps %ymm6, %ecx
+
+/* compute 2^N with "shift" */
+        vpslld    $23, %ymm4, %ymm6
+
+/* 2^N*exp(r) */
+        vmulps    %ymm1, %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      expf@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      expf@PLT
+
+        vmovss    %xmm0, 384(%rsp,%r15,8)
+        jmp       .LBL_1_7
+
+END(_ZGVdN8v_expf_avx2)