diff options
Diffstat (limited to 'REORG.TODO/sysdeps/x86_64/fpu/multiarch/svml_s_sincosf4_core_sse4.S')
| -rw-r--r-- | REORG.TODO/sysdeps/x86_64/fpu/multiarch/svml_s_sincosf4_core_sse4.S | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/x86_64/fpu/multiarch/svml_s_sincosf4_core_sse4.S b/REORG.TODO/sysdeps/x86_64/fpu/multiarch/svml_s_sincosf4_core_sse4.S new file mode 100644 index 0000000000..74a6ac1157 --- /dev/null +++ b/REORG.TODO/sysdeps/x86_64/fpu/multiarch/svml_s_sincosf4_core_sse4.S @@ -0,0 +1,346 @@ +/* Function sincosf vectorized with SSE4. + 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 (_ZGVbN4vl4l4_sincosf_sse4) +/* + ALGORITHM DESCRIPTION: + + 1) Range reduction to [-Pi/4; +Pi/4] interval + a) Grab sign from source argument and save it. + b) Remove sign using AND operation + c) Getting octant Y by 2/Pi multiplication + d) Add "Right Shifter" value + e) Treat obtained value as integer S for destination sign setting. + SS = ((S-S&1)&2)<<30; For sin part + SC = ((S+S&1)&2)<<30; For cos part + f) Change destination sign if source sign is negative + using XOR operation. + g) Subtract "Right Shifter" (0x4B000000) value + h) Subtract Y*(PI/2) from X argument, where PI/2 divided to 4 parts: + X = X - Y*PI1 - Y*PI2 - Y*PI3 - Y*PI4; + 2) Polynomial (minimax for sin within [-Pi/4; +Pi/4] interval) + a) Calculate X^2 = X * X + b) Calculate 2 polynomials for sin and cos: + RS = X * ( A0 + X^2 * (A1 + x^2 * (A2 + x^2 * (A3)))); + RC = B0 + X^2 * (B1 + x^2 * (B2 + x^2 * (B3 + x^2 * (B4)))); + c) Swap RS & RC if if first bit of obtained value after + Right Shifting is set to 1. Using And, Andnot & Or operations. + 3) Destination sign setting + a) Set shifted destination sign using XOR operation: + R1 = XOR( RS, SS ); + R2 = XOR( RC, SC ). */ + + 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 + movq __svml_s_trig_data@GOTPCREL(%rip), %rax + movups %xmm12, 176(%rsp) + movups %xmm9, 160(%rsp) + movups __sAbsMask(%rax), %xmm12 + +/* Absolute argument computation */ + movaps %xmm12, %xmm5 + andnps %xmm0, %xmm12 + movups __sInvPI(%rax), %xmm7 + andps %xmm0, %xmm5 + +/* c) Getting octant Y by 2/Pi multiplication + d) Add "Right Shifter" value. */ + mulps %xmm5, %xmm7 + movups %xmm10, 144(%rsp) + movups __sPI1(%rax), %xmm10 + +/* h) Subtract Y*(PI/2) from X argument, where PI/2 divided to 3 parts: + X = X - Y*PI1 - Y*PI2 - Y*PI3. */ + movaps %xmm10, %xmm1 + addps __sRShifter(%rax), %xmm7 + +/* e) Treat obtained value as integer S for destination sign setting */ + movaps %xmm7, %xmm9 + +/* g) Subtract "Right Shifter" (0x4B000000) value */ + subps __sRShifter(%rax), %xmm7 + mulps %xmm7, %xmm1 + pslld $31, %xmm9 + movups __sPI2(%rax), %xmm6 + movups %xmm13, 112(%rsp) + movaps %xmm5, %xmm13 + movaps %xmm6, %xmm2 + subps %xmm1, %xmm13 + mulps %xmm7, %xmm2 + movups __sSignMask(%rax), %xmm3 + movaps %xmm5, %xmm1 + movups __sOneHalf(%rax), %xmm4 + subps %xmm2, %xmm13 + cmpnleps __sRangeReductionVal(%rax), %xmm5 + movaps %xmm3, %xmm2 + andps %xmm13, %xmm2 + xorps %xmm2, %xmm4 + +/* Result sign calculations */ + xorps %xmm2, %xmm3 + xorps %xmm9, %xmm3 + +/* Add correction term 0.5 for cos() part */ + addps %xmm7, %xmm4 + movmskps %xmm5, %ecx + mulps %xmm4, %xmm10 + mulps %xmm4, %xmm6 + subps %xmm10, %xmm1 + movups __sPI3(%rax), %xmm10 + subps %xmm6, %xmm1 + movaps %xmm10, %xmm6 + mulps %xmm7, %xmm6 + mulps %xmm4, %xmm10 + subps %xmm6, %xmm13 + subps %xmm10, %xmm1 + movups __sPI4(%rax), %xmm6 + mulps %xmm6, %xmm7 + mulps %xmm6, %xmm4 + subps %xmm7, %xmm13 + subps %xmm4, %xmm1 + xorps %xmm9, %xmm13 + xorps %xmm3, %xmm1 + movaps %xmm13, %xmm4 + movaps %xmm1, %xmm2 + mulps %xmm13, %xmm4 + mulps %xmm1, %xmm2 + movups __sA9(%rax), %xmm7 + +/* 2) Polynomial (minimax for sin within [-Pi/4; +Pi/4] interval) + a) Calculate X^2 = X * X + b) Calculate 2 polynomials for sin and cos: + RS = X * ( A0 + X^2 * (A1 + x^2 * (A2 + x^2 * (A3)))); + RC = B0 + X^2 * (B1 + x^2 * (B2 + x^2 * (B3 + x^2 * (B4)))) */ + movaps %xmm7, %xmm3 + mulps %xmm4, %xmm3 + mulps %xmm2, %xmm7 + addps __sA7(%rax), %xmm3 + addps __sA7(%rax), %xmm7 + mulps %xmm4, %xmm3 + mulps %xmm2, %xmm7 + addps __sA5(%rax), %xmm3 + addps __sA5(%rax), %xmm7 + mulps %xmm4, %xmm3 + mulps %xmm2, %xmm7 + addps __sA3(%rax), %xmm3 + addps __sA3(%rax), %xmm7 + mulps %xmm3, %xmm4 + mulps %xmm7, %xmm2 + mulps %xmm13, %xmm4 + mulps %xmm1, %xmm2 + addps %xmm4, %xmm13 + addps %xmm2, %xmm1 + xorps %xmm12, %xmm13 + testl %ecx, %ecx + jne .LBL_1_3 + +.LBL_1_2: + cfi_remember_state + movups 160(%rsp), %xmm9 + movaps %xmm13, (%rdi) + movups 144(%rsp), %xmm10 + movups 176(%rsp), %xmm12 + movups 112(%rsp), %xmm13 + movups %xmm1, (%rsi) + 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 %xmm0, 128(%rsp) + movups %xmm13, 192(%rsp) + movups %xmm1, 256(%rsp) + je .LBL_1_2 + + xorb %dl, %dl + xorl %eax, %eax + movups %xmm8, 48(%rsp) + movups %xmm11, 32(%rsp) + movups %xmm14, 16(%rsp) + movups %xmm15, (%rsp) + movq %rsi, 64(%rsp) + movq %r12, 104(%rsp) + cfi_offset_rel_rsp (12, 104) + movb %dl, %r12b + movq %r13, 96(%rsp) + cfi_offset_rel_rsp (13, 96) + movl %eax, %r13d + movq %r14, 88(%rsp) + cfi_offset_rel_rsp (14, 88) + movl %ecx, %r14d + movq %r15, 80(%rsp) + cfi_offset_rel_rsp (15, 80) + movq %rbx, 72(%rsp) + movq %rdi, %rbx + cfi_remember_state + +.LBL_1_6: + btl %r13d, %r14d + jc .LBL_1_13 + +.LBL_1_7: + lea 1(%r13), %esi + btl %esi, %r14d + jc .LBL_1_10 + +.LBL_1_8: + incb %r12b + addl $2, %r13d + cmpb $16, %r12b + jb .LBL_1_6 + + movups 48(%rsp), %xmm8 + movq %rbx, %rdi + movups 32(%rsp), %xmm11 + movups 16(%rsp), %xmm14 + movups (%rsp), %xmm15 + movq 64(%rsp), %rsi + movq 104(%rsp), %r12 + cfi_restore (%r12) + movq 96(%rsp), %r13 + cfi_restore (%r13) + movq 88(%rsp), %r14 + cfi_restore (%r14) + movq 80(%rsp), %r15 + cfi_restore (%r15) + movq 72(%rsp), %rbx + movups 192(%rsp), %xmm13 + movups 256(%rsp), %xmm1 + jmp .LBL_1_2 + +.LBL_1_10: + cfi_restore_state + movzbl %r12b, %r15d + movss 132(%rsp,%r15,8), %xmm0 + + call JUMPTARGET(sinf) + + movss %xmm0, 196(%rsp,%r15,8) + movss 132(%rsp,%r15,8), %xmm0 + + call JUMPTARGET(cosf) + + movss %xmm0, 260(%rsp,%r15,8) + jmp .LBL_1_8 + +.LBL_1_13: + movzbl %r12b, %r15d + movss 128(%rsp,%r15,8), %xmm0 + + call JUMPTARGET(sinf) + + movss %xmm0, 192(%rsp,%r15,8) + movss 128(%rsp,%r15,8), %xmm0 + + call JUMPTARGET(cosf) + + movss %xmm0, 256(%rsp,%r15,8) + jmp .LBL_1_7 + +END (_ZGVbN4vl4l4_sincosf_sse4) +libmvec_hidden_def(_ZGVbN4vl4l4_sincosf_sse4) + +/* vvv version implemented with wrapper to vl4l4 variant. */ +ENTRY (_ZGVbN4vvv_sincosf_sse4) +#ifndef __ILP32__ + subq $104, %rsp + .cfi_def_cfa_offset 112 + movdqu %xmm1, 32(%rsp) + lea (%rsp), %rdi + movdqu %xmm2, 48(%rdi) + lea 16(%rsp), %rsi + movdqu %xmm3, 48(%rsi) + movdqu %xmm4, 64(%rsi) + call HIDDEN_JUMPTARGET(_ZGVbN4vl4l4_sincosf_sse4) + movq 32(%rsp), %rdx + movq 40(%rsp), %rsi + movq 48(%rsp), %r8 + movq 56(%rsp), %r10 + movl (%rsp), %eax + movl 4(%rsp), %ecx + movl 8(%rsp), %edi + movl 12(%rsp), %r9d + movl %eax, (%rdx) + movl %ecx, (%rsi) + movq 64(%rsp), %rax + movq 72(%rsp), %rcx + movl %edi, (%r8) + movl %r9d, (%r10) + movq 80(%rsp), %rdi + movq 88(%rsp), %r9 + movl 16(%rsp), %r11d + movl 20(%rsp), %edx + movl 24(%rsp), %esi + movl 28(%rsp), %r8d + movl %r11d, (%rax) + movl %edx, (%rcx) + movl %esi, (%rdi) + movl %r8d, (%r9) + addq $104, %rsp + .cfi_def_cfa_offset 8 + ret +#else + subl $72, %esp + .cfi_def_cfa_offset 80 + leal 48(%rsp), %esi + movaps %xmm1, 16(%esp) + leal 32(%rsp), %edi + movaps %xmm2, (%esp) + call HIDDEN_JUMPTARGET(_ZGVbN4vl4l4_sincosf_sse4) + movl 16(%esp), %eax + movss 32(%esp), %xmm0 + movss %xmm0, (%eax) + movl 20(%esp), %eax + movss 36(%esp), %xmm0 + movss %xmm0, (%eax) + movl 24(%esp), %eax + movss 40(%esp), %xmm0 + movss %xmm0, (%eax) + movl 28(%esp), %eax + movss 44(%esp), %xmm0 + movss %xmm0, (%eax) + movl (%esp), %eax + movss 48(%esp), %xmm0 + movss %xmm0, (%eax) + movl 4(%esp), %eax + movss 52(%esp), %xmm0 + movss %xmm0, (%eax) + movl 8(%esp), %eax + movss 56(%esp), %xmm0 + movss %xmm0, (%eax) + movl 12(%esp), %eax + movss 60(%esp), %xmm0 + movss %xmm0, (%eax) + addl $72, %esp + .cfi_def_cfa_offset 8 + ret +#endif +END (_ZGVbN4vvv_sincosf_sse4) |