diff options
Diffstat (limited to 'sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S')
| -rw-r--r-- | sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S | 207 |
1 files changed, 0 insertions, 207 deletions
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 deleted file mode 100644 index 4b6d09743b..0000000000 --- a/sysdeps/x86_64/fpu/multiarch/svml_d_cos4_core_avx2.S +++ /dev/null @@ -1,207 +0,0 @@ -/* Function cos vectorized with AVX2. - Copyright (C) 2014-2017 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_trig_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_d_trig_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 JUMPTARGET(cos) - - 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 JUMPTARGET(cos) - - vmovsd %xmm0, 384(%rsp,%r15) - jmp .LBL_1_7 - -END (_ZGVdN4v_cos_avx2) |