/* * Math library * * Copyright (C) 2016 Intel Corporation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * Author Name * History: * 03-14-2016 Initial version. numerics svn rev. 12864 */ .file "log2f_gen.c" .text ..TXTST0: # -- Begin log2f .text .align 16,0x90 .globl log2f log2f: # parameter 1: %xmm0 ..B1.1: .cfi_startproc ..___tag_value_log2f.1: ..L2: movd %xmm0, %edx movss %xmm0, -8(%rsp) cmpl $2139095040, %edx jae ..B1.14 ..B1.2: lea -1065222144(%rdx), %eax cmpl $196608, %eax jae ..B1.7 ..B1.3: cmpl $1065353216, %edx jne ..B1.5 ..B1.4: pxor %xmm3, %xmm3 jmp ..B1.6 ..B1.5: movss -8(%rsp), %xmm0 lea 40+_Q(%rip), %rax lea 32+_Q(%rip), %rsi addss .L_2il0floatpacket.0(%rip), %xmm0 cvtss2sd %xmm0, %xmm0 movaps %xmm0, %xmm1 lea 24+_Q(%rip), %rdx movsd (%rax), %xmm3 lea 16+_Q(%rip), %rdi movsd (%rsi), %xmm2 lea 8+_Q(%rip), %rcx lea _Q(%rip), %r8 mulsd %xmm0, %xmm1 mulsd %xmm1, %xmm3 mulsd %xmm1, %xmm2 addsd (%rdx), %xmm3 addsd (%rdi), %xmm2 mulsd %xmm1, %xmm3 mulsd %xmm1, %xmm2 addsd (%rcx), %xmm3 addsd (%r8), %xmm2 mulsd %xmm1, %xmm3 mulsd %xmm0, %xmm2 addsd %xmm2, %xmm3 cvtsd2ss %xmm3, %xmm3 ..B1.6: movaps %xmm3, %xmm0 ret ..B1.7: movl %edx, %r9d movl %edx, %eax shrl $23, %r9d andl $8388607, %eax addl $-127, %r9d movl %eax, -8(%rsp) cmpl $8388608, %edx jae ..B1.10 ..B1.8: testl %edx, %edx je ..B1.22 ..B1.9: movss -8(%rsp), %xmm0 mulss .L_2il0floatpacket.1(%rip), %xmm0 movd %xmm0, %eax movss %xmm0, -8(%rsp) movl %eax, %r9d movl %eax, %edx shrl $23, %r9d addl $-152, %r9d ..B1.10: testl $8388607, %edx jne ..B1.12 ..B1.11: pxor %xmm0, %xmm0 cvtsi2ss %r9d, %xmm0 ret ..B1.12: shrl $15, %edx orl $1065353216, %eax movzbl %dl, %edi pxor %xmm2, %xmm2 movl %eax, -8(%rsp) pxor %xmm0, %xmm0 movq __libm_rcp_table_256@GOTPCREL(%rip), %rax lea 16+_P(%rip), %rdx lea 8+_P(%rip), %rcx lea _P(%rip), %r8 movq __libm_logf_table_256@GOTPCREL(%rip), %rsi pxor %xmm3, %xmm3 cvtss2sd -8(%rsp), %xmm2 cvtss2sd (%rax,%rdi,4), %xmm0 cvtsi2sd %r9d, %xmm3 mulsd %xmm0, %xmm2 movsd (%rdx), %xmm0 movsd (%rsi,%rdi,8), %xmm1 addsd .L_2il0floatpacket.2(%rip), %xmm2 mulsd %xmm2, %xmm0 addsd (%rcx), %xmm0 mulsd %xmm2, %xmm0 mulsd %xmm2, %xmm0 addsd %xmm1, %xmm2 mulsd (%r8), %xmm2 addsd %xmm2, %xmm0 addsd %xmm3, %xmm0 cvtsd2ss %xmm0, %xmm0 ..B1.13: ret ..B1.14: movl %edx, %eax andl $2147483647, %eax cmpl $2139095040, %eax ja ..B1.20 ..B1.15: testl $-2147483648, %edx je ..B1.20 ..B1.16: testl %eax, %eax jne ..B1.18 ..B1.17: movss .L_2il0floatpacket.0(%rip), %xmm0 pxor %xmm1, %xmm1 divss %xmm1, %xmm0 ret ..B1.18: movss .L_2il0floatpacket.3(%rip), %xmm1 pxor %xmm0, %xmm0 mulss %xmm1, %xmm0 ..B1.19: ret ..B1.20: movss -8(%rsp), %xmm0 ret ..B1.22: movss .L_2il0floatpacket.0(%rip), %xmm0 pxor %xmm1, %xmm1 divss %xmm1, %xmm0 ret .align 16,0x90 .cfi_endproc .type log2f,@function .size log2f,.-log2f .data # -- End log2f .section .rodata, "a" .align 8 .align 8 .L_2il0floatpacket.2: .long 0x00000000,0xbff00000 .type .L_2il0floatpacket.2,@object .size .L_2il0floatpacket.2,8 .align 4 .L_2il0floatpacket.0: .long 0xbf800000 .type .L_2il0floatpacket.0,@object .size .L_2il0floatpacket.0,4 .align 4 .L_2il0floatpacket.1: .long 0x4c000000 .type .L_2il0floatpacket.1,@object .size .L_2il0floatpacket.1,4 .align 4 .L_2il0floatpacket.3: .long 0x7f800000 .type .L_2il0floatpacket.3,@object .size .L_2il0floatpacket.3,4 .align 4 _Q: .long 1697350398 .long 1073157447 .long 1697278904 .long 3219592519 .long 3711670093 .long 1071564553 .long 491294680 .long 3218543945 .long 1795286032 .long 1070757723 .long 557036084 .long 3217959989 .type _Q,@object .size _Q,48 .align 4 _P: .long 1697350398 .long 1073157447 .long 605117704 .long 3219592522 .long 782203563 .long 1071564561 .type _P,@object .size _P,24 .data .section .note.GNU-stack, "" // -- Begin DWARF2 SEGMENT .eh_frame .section .eh_frame,"a",@progbits .eh_frame_seg: .align 1 # End