diff options
Diffstat (limited to 'sysdeps/x86_64/fpu/multiarch/svml_s_cosf8_core_avx2.S')
| -rw-r--r-- | sysdeps/x86_64/fpu/multiarch/svml_s_cosf8_core_avx2.S | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/sysdeps/x86_64/fpu/multiarch/svml_s_cosf8_core_avx2.S b/sysdeps/x86_64/fpu/multiarch/svml_s_cosf8_core_avx2.S deleted file mode 100644 index c61add3bb9..0000000000 --- a/sysdeps/x86_64/fpu/multiarch/svml_s_cosf8_core_avx2.S +++ /dev/null @@ -1,215 +0,0 @@ -/* Function cosf 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_s_trig_data.h" - - .text -ENTRY (_ZGVdN8v_cosf_avx2) -/* - ALGORITHM DESCRIPTION: - - 1) Range reduction to [-Pi/2; +Pi/2] interval - a) We remove sign using AND operation - b) Add Pi/2 value to argument X for Cos to Sin transformation - c) Getting octant Y by 1/Pi multiplication - d) Add "Right Shifter" value - e) Treat obtained value as integer for destination sign setting. - Shift first bit of this value to the last (sign) position - f) Subtract "Right Shifter" value - g) Subtract 0.5 from result for octant correction - h) Subtract Y*PI from X argument, where PI divided to 4 parts: - X = X - Y*PI1 - Y*PI2 - Y*PI3 - Y*PI4; - 2) Polynomial (minimax for sin within [-Pi/2; +Pi/2] interval) - a) Calculate X^2 = X * X - b) Calculate polynomial: - R = X + X * X^2 * (A3 + x^2 * (A5 + ..... - 3) Destination sign setting - a) Set shifted destination sign using XOR operation: - R = XOR( R, S ); - */ - 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_s_trig_data@GOTPCREL(%rip), %rax - vmovaps %ymm0, %ymm2 - vmovups __sRShifter(%rax), %ymm5 - vmovups __sPI1_FMA(%rax), %ymm7 - -/* b) Add Pi/2 value to argument X for Cos to Sin transformation */ - vaddps __sHalfPI(%rax), %ymm2, %ymm4 - -/* - 1) Range reduction to [-Pi/2; +Pi/2] interval - c) Getting octant Y by 1/Pi multiplication - d) Add "Right Shifter" (0x4B000000) value - */ - vfmadd132ps __sInvPI(%rax), %ymm5, %ymm4 - -/* f) Subtract "Right Shifter" (0x4B000000) value */ - vsubps %ymm5, %ymm4, %ymm6 - -/* - e) Treat obtained value as integer for destination sign setting. - Shift first bit of this value to the last (sign) position (S << 31) - */ - vpslld $31, %ymm4, %ymm0 - -/* g) Subtract 0.5 from result for octant correction */ - vsubps __sOneHalf(%rax), %ymm6, %ymm4 - -/* Check for large and special arguments */ - vandps __sAbsMask(%rax), %ymm2, %ymm3 - vcmpnle_uqps __sRangeReductionVal(%rax), %ymm3, %ymm1 - -/* - h) Subtract Y*PI from X argument, where PI divided to 4 parts: - X = X - Y*PI1 - Y*PI2 - Y*PI3 - */ - vmovaps %ymm2, %ymm3 - vfnmadd231ps %ymm4, %ymm7, %ymm3 - vfnmadd231ps __sPI2_FMA(%rax), %ymm4, %ymm3 - vfnmadd132ps __sPI3_FMA(%rax), %ymm3, %ymm4 - -/* a) Calculate X^2 = X * X */ - vmulps %ymm4, %ymm4, %ymm5 - -/* - 3) Destination sign setting - a) Set shifted destination sign using XOR operation: - R = XOR( R, S ); - */ - vxorps %ymm0, %ymm4, %ymm6 - vmovups __sA9_FMA(%rax), %ymm0 - -/* - b) Calculate polynomial: - R = X + X * X^2 * (A3 + x^2 * (A5 + x^2 * (A7 + x^2 * (A9)))) - */ - vfmadd213ps __sA7_FMA(%rax), %ymm5, %ymm0 - vfmadd213ps __sA5_FMA(%rax), %ymm5, %ymm0 - vfmadd213ps __sA3(%rax), %ymm5, %ymm0 - vmulps %ymm5, %ymm0, %ymm0 - vmovmskps %ymm1, %ecx - vfmadd213ps %ymm6, %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 JUMPTARGET(cosf) - - vmovss %xmm0, 388(%rsp,%r15,8) - jmp .LBL_1_8 - -.LBL_1_12: - movzbl %r12b, %r15d - vmovss 320(%rsp,%r15,8), %xmm0 - vzeroupper - - call JUMPTARGET(cosf) - - vmovss %xmm0, 384(%rsp,%r15,8) - jmp .LBL_1_7 - -END (_ZGVdN8v_cosf_avx2) |