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| author | Andrew Senkevich <andrew.senkevich@intel.com> | 2015-06-17 16:10:51 +0300 |
|---|---|---|
| committer | Andrew Senkevich <andrew.senkevich@intel.com> | 2015-06-17 16:10:51 +0300 |
| commit | 1663be053d50c06bb0f971c87d41a7b83f96fe15 (patch) | |
| tree | 4bfbbfac7a83c1e52b2a7ab23dd9677f5cab4267 /sysdeps/x86_64/fpu | |
| parent | 9c02f663f6b387b3905b629ffe584c9abf2030dc (diff) | |
| download | glibc-1663be053d50c06bb0f971c87d41a7b83f96fe15.tar.gz glibc-1663be053d50c06bb0f971c87d41a7b83f96fe15.tar.xz glibc-1663be053d50c06bb0f971c87d41a7b83f96fe15.zip | |
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.
Diffstat (limited to 'sysdeps/x86_64/fpu')
24 files changed, 1214 insertions, 1 deletions
diff --git a/sysdeps/x86_64/fpu/Makefile b/sysdeps/x86_64/fpu/Makefile index bd6d693d39..eab738fb4a 100644 --- a/sysdeps/x86_64/fpu/Makefile +++ b/sysdeps/x86_64/fpu/Makefile @@ -12,6 +12,8 @@ libmvec-support += svml_d_cos2_core svml_d_cos4_core_avx \ svml_s_logf8_core_avx svml_s_logf8_core svml_s_logf16_core \ svml_s_logf_data svml_d_exp2_core svml_d_exp4_core_avx \ svml_d_exp4_core svml_d_exp8_core svml_d_exp_data \ + svml_s_expf4_core svml_s_expf8_core_avx svml_s_expf8_core \ + svml_s_expf16_core svml_s_expf_data \ init-arch endif diff --git a/sysdeps/x86_64/fpu/Versions b/sysdeps/x86_64/fpu/Versions index 00e34e771b..0eaa8e81db 100644 --- a/sysdeps/x86_64/fpu/Versions +++ b/sysdeps/x86_64/fpu/Versions @@ -7,5 +7,6 @@ libmvec { _ZGVbN4v_cosf; _ZGVcN8v_cosf; _ZGVdN8v_cosf; _ZGVeN16v_cosf; _ZGVbN4v_sinf; _ZGVcN8v_sinf; _ZGVdN8v_sinf; _ZGVeN16v_sinf; _ZGVbN4v_logf; _ZGVcN8v_logf; _ZGVdN8v_logf; _ZGVeN16v_logf; + _ZGVbN4v_expf; _ZGVcN8v_expf; _ZGVdN8v_expf; _ZGVeN16v_expf; } } diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps index 45ebc04e58..ba1367f425 100644 --- a/sysdeps/x86_64/fpu/libm-test-ulps +++ b/sysdeps/x86_64/fpu/libm-test-ulps @@ -1535,17 +1535,25 @@ idouble: 1 ildouble: 1 ldouble: 1 +Function: "exp_vlen16": +float: 1 + Function: "exp_vlen2": double: 1 Function: "exp_vlen4": double: 1 +float: 1 Function: "exp_vlen4_avx2": double: 1 Function: "exp_vlen8": double: 1 +float: 1 + +Function: "exp_vlen8_avx2": +float: 1 Function: "expm1": double: 1 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) diff --git a/sysdeps/x86_64/fpu/svml_s_expf16_core.S b/sysdeps/x86_64/fpu/svml_s_expf16_core.S new file mode 100644 index 0000000000..d9d355c372 --- /dev/null +++ b/sysdeps/x86_64/fpu/svml_s_expf16_core.S @@ -0,0 +1,25 @@ +/* Function expf vectorized with AVX-512. Wrapper to AVX2 version. + Copyright (C) 2014-2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include "svml_s_wrapper_impl.h" + + .text +ENTRY (_ZGVeN16v_expf) +WRAPPER_IMPL_AVX512 _ZGVdN8v_expf +END (_ZGVeN16v_expf) diff --git a/sysdeps/x86_64/fpu/svml_s_expf4_core.S b/sysdeps/x86_64/fpu/svml_s_expf4_core.S new file mode 100644 index 0000000000..71c5da4657 --- /dev/null +++ b/sysdeps/x86_64/fpu/svml_s_expf4_core.S @@ -0,0 +1,30 @@ +/* Function expf vectorized with SSE2. + Copyright (C) 2014-2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + + +#include <sysdep.h> +#include "svml_s_wrapper_impl.h" + + .text +ENTRY (_ZGVbN4v_expf) +WRAPPER_IMPL_SSE2 expf +END (_ZGVbN4v_expf) + +#ifndef USE_MULTIARCH + libmvec_hidden_def (_ZGVbN4v_expf) +#endif diff --git a/sysdeps/x86_64/fpu/svml_s_expf8_core.S b/sysdeps/x86_64/fpu/svml_s_expf8_core.S new file mode 100644 index 0000000000..d254a992a4 --- /dev/null +++ b/sysdeps/x86_64/fpu/svml_s_expf8_core.S @@ -0,0 +1,29 @@ +/* Function expf vectorized with AVX2, wrapper version. + Copyright (C) 2014-2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include "svml_s_wrapper_impl.h" + + .text +ENTRY (_ZGVdN8v_expf) +WRAPPER_IMPL_AVX _ZGVbN4v_expf +END (_ZGVdN8v_expf) + +#ifndef USE_MULTIARCH + libmvec_hidden_def (_ZGVdN8v_expf) +#endif diff --git a/sysdeps/x86_64/fpu/svml_s_expf8_core_avx.S b/sysdeps/x86_64/fpu/svml_s_expf8_core_avx.S new file mode 100644 index 0000000000..ece40ba972 --- /dev/null +++ b/sysdeps/x86_64/fpu/svml_s_expf8_core_avx.S @@ -0,0 +1,25 @@ +/* Function expf vectorized in AVX ISA as wrapper to SSE4 ISA version. + Copyright (C) 2014-2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include "svml_s_wrapper_impl.h" + + .text +ENTRY(_ZGVcN8v_expf) +WRAPPER_IMPL_AVX _ZGVbN4v_expf +END(_ZGVcN8v_expf) diff --git a/sysdeps/x86_64/fpu/svml_s_expf_data.S b/sysdeps/x86_64/fpu/svml_s_expf_data.S new file mode 100644 index 0000000000..eee9d69e31 --- /dev/null +++ b/sysdeps/x86_64/fpu/svml_s_expf_data.S @@ -0,0 +1,63 @@ +/* Data for function 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 "svml_s_expf_data.h" + + .section .rodata, "a" + .align 64 + +/* Data table for vector implementations of function expf. + The table may contain polynomial, reduction, lookup coefficients and + other coefficients obtained through different methods of research and + experimental work. */ + + .globl __svml_sexp_data +__svml_sexp_data: + +/* Range reduction coefficients: + * log(2) inverted */ +float_vector __sInvLn2 0x3fb8aa3b + +/* right shifter constant */ +float_vector __sShifter 0x4b400000 + +/* log(2) high part */ +float_vector __sLn2hi 0x3f317200 + +/* log(2) low part */ +float_vector __sLn2lo 0x35bfbe8e + +/* bias */ +float_vector __iBias 0x0000007f + +/* Polynomial coefficients: + * Here we approximate 2^x on [-0.5, 0.5] */ +float_vector __sPC0 0x3f800000 +float_vector __sPC1 0x3f7ffffe +float_vector __sPC2 0x3effff34 +float_vector __sPC3 0x3e2aacac +float_vector __sPC4 0x3d2b8392 +float_vector __sPC5 0x3c07d9fe + +/* absolute value mask */ +float_vector __iAbsMask 0x7fffffff + +/* working domain range */ +float_vector __iDomainRange 0x42aeac4f + .type __svml_sexp_data,@object + .size __svml_sexp_data,.-__svml_sexp_data diff --git a/sysdeps/x86_64/fpu/svml_s_expf_data.h b/sysdeps/x86_64/fpu/svml_s_expf_data.h new file mode 100644 index 0000000000..beaa290540 --- /dev/null +++ b/sysdeps/x86_64/fpu/svml_s_expf_data.h @@ -0,0 +1,45 @@ +/* Offsets for data table for vector function 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/>. */ + +#ifndef S_EXPF_DATA_H +#define S_EXPF_DATA_H + +#define __sInvLn2 0 +#define __sShifter 64 +#define __sLn2hi 128 +#define __sLn2lo 192 +#define __iBias 256 +#define __sPC0 320 +#define __sPC1 384 +#define __sPC2 448 +#define __sPC3 512 +#define __sPC4 576 +#define __sPC5 640 +#define __iAbsMask 704 +#define __iDomainRange 768 + +.macro float_vector offset value +.if .-__svml_sexp_data != \offset +.err +.endif +.rept 16 +.long \value +.endr +.endm + +#endif diff --git a/sysdeps/x86_64/fpu/test-float-vlen16-wrappers.c b/sysdeps/x86_64/fpu/test-float-vlen16-wrappers.c index 72435e4b1e..19c249a4f0 100644 --- a/sysdeps/x86_64/fpu/test-float-vlen16-wrappers.c +++ b/sysdeps/x86_64/fpu/test-float-vlen16-wrappers.c @@ -25,3 +25,4 @@ VECTOR_WRAPPER (WRAPPER_NAME (cosf), _ZGVeN16v_cosf) VECTOR_WRAPPER (WRAPPER_NAME (sinf), _ZGVeN16v_sinf) VECTOR_WRAPPER (WRAPPER_NAME (logf), _ZGVeN16v_logf) +VECTOR_WRAPPER (WRAPPER_NAME (expf), _ZGVeN16v_expf) diff --git a/sysdeps/x86_64/fpu/test-float-vlen16.c b/sysdeps/x86_64/fpu/test-float-vlen16.c index 10da5fefa3..09514c4f40 100644 --- a/sysdeps/x86_64/fpu/test-float-vlen16.c +++ b/sysdeps/x86_64/fpu/test-float-vlen16.c @@ -21,6 +21,7 @@ #define TEST_VECTOR_cosf 1 #define TEST_VECTOR_sinf 1 #define TEST_VECTOR_logf 1 +#define TEST_VECTOR_expf 1 #define REQUIRE_AVX512F diff --git a/sysdeps/x86_64/fpu/test-float-vlen4-wrappers.c b/sysdeps/x86_64/fpu/test-float-vlen4-wrappers.c index f51575d35e..55bd026f3b 100644 --- a/sysdeps/x86_64/fpu/test-float-vlen4-wrappers.c +++ b/sysdeps/x86_64/fpu/test-float-vlen4-wrappers.c @@ -25,3 +25,4 @@ VECTOR_WRAPPER (WRAPPER_NAME (cosf), _ZGVbN4v_cosf) VECTOR_WRAPPER (WRAPPER_NAME (sinf), _ZGVbN4v_sinf) VECTOR_WRAPPER (WRAPPER_NAME (logf), _ZGVbN4v_logf) +VECTOR_WRAPPER (WRAPPER_NAME (expf), _ZGVbN4v_expf) diff --git a/sysdeps/x86_64/fpu/test-float-vlen4.c b/sysdeps/x86_64/fpu/test-float-vlen4.c index 5cb293f485..df31593507 100644 --- a/sysdeps/x86_64/fpu/test-float-vlen4.c +++ b/sysdeps/x86_64/fpu/test-float-vlen4.c @@ -21,5 +21,6 @@ #define TEST_VECTOR_cosf 1 #define TEST_VECTOR_sinf 1 #define TEST_VECTOR_logf 1 +#define TEST_VECTOR_expf 1 #include "libm-test.c" diff --git a/sysdeps/x86_64/fpu/test-float-vlen8-avx2-wrappers.c b/sysdeps/x86_64/fpu/test-float-vlen8-avx2-wrappers.c index 7515a5981e..637949b61c 100644 --- a/sysdeps/x86_64/fpu/test-float-vlen8-avx2-wrappers.c +++ b/sysdeps/x86_64/fpu/test-float-vlen8-avx2-wrappers.c @@ -28,3 +28,4 @@ VECTOR_WRAPPER (WRAPPER_NAME (cosf), _ZGVdN8v_cosf) VECTOR_WRAPPER (WRAPPER_NAME (sinf), _ZGVdN8v_sinf) VECTOR_WRAPPER (WRAPPER_NAME (logf), _ZGVdN8v_logf) +VECTOR_WRAPPER (WRAPPER_NAME (expf), _ZGVdN8v_expf) diff --git a/sysdeps/x86_64/fpu/test-float-vlen8-avx2.c b/sysdeps/x86_64/fpu/test-float-vlen8-avx2.c index 1026d63e95..e550f4d0c8 100644 --- a/sysdeps/x86_64/fpu/test-float-vlen8-avx2.c +++ b/sysdeps/x86_64/fpu/test-float-vlen8-avx2.c @@ -24,6 +24,7 @@ #define TEST_VECTOR_cosf 1 #define TEST_VECTOR_sinf 1 #define TEST_VECTOR_logf 1 +#define TEST_VECTOR_expf 1 #define REQUIRE_AVX2 diff --git a/sysdeps/x86_64/fpu/test-float-vlen8-wrappers.c b/sysdeps/x86_64/fpu/test-float-vlen8-wrappers.c index 6dde1a2cf1..3b0a63d594 100644 --- a/sysdeps/x86_64/fpu/test-float-vlen8-wrappers.c +++ b/sysdeps/x86_64/fpu/test-float-vlen8-wrappers.c @@ -25,3 +25,4 @@ VECTOR_WRAPPER (WRAPPER_NAME (cosf), _ZGVcN8v_cosf) VECTOR_WRAPPER (WRAPPER_NAME (sinf), _ZGVcN8v_sinf) VECTOR_WRAPPER (WRAPPER_NAME (logf), _ZGVcN8v_logf) +VECTOR_WRAPPER (WRAPPER_NAME (expf), _ZGVcN8v_expf) diff --git a/sysdeps/x86_64/fpu/test-float-vlen8.c b/sysdeps/x86_64/fpu/test-float-vlen8.c index 3fe10ad7bc..db5b2e592b 100644 --- a/sysdeps/x86_64/fpu/test-float-vlen8.c +++ b/sysdeps/x86_64/fpu/test-float-vlen8.c @@ -21,5 +21,6 @@ #define TEST_VECTOR_cosf 1 #define TEST_VECTOR_sinf 1 #define TEST_VECTOR_logf 1 +#define TEST_VECTOR_expf 1 #include "libm-test.c" |