| /* |
| Copyright (c) 2014, 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. |
| */ |
| |
| /******************************************************************************/ |
| // ALGORITHM DESCRIPTION |
| // --------------------- |
| // |
| // x=2^k * mx, mx in [1,2) |
| // |
| // Get B~1/mx based on the output of rcpss instruction (B0) |
| // B = int((B0*2^7+0.5))/2^7 |
| // |
| // Reduced argument: r=B*mx-1.0 (computed accurately in high and low parts) |
| // |
| // Result: k*log(2) - log(B) + p(r) if |x-1| >= small value (2^-6) and |
| // p(r) is a degree 7 polynomial |
| // -log(B) read from data table (high, low parts) |
| // Result is formed from high and low parts |
| // |
| // Special cases: |
| // log(NaN) = quiet NaN, and raise invalid exception |
| // log(+INF) = that INF |
| // log(0) = -INF with divide-by-zero exception raised |
| // log(1) = +0 |
| // log(x) = NaN with invalid exception raised if x < -0, including -INF |
| // |
| /******************************************************************************/ |
| |
| #include <private/bionic_asm.h> |
| # -- Begin static_func |
| .text |
| .align __bionic_asm_align |
| .type static_func, @function |
| static_func: |
| ..B1.1: |
| call ..L2 |
| ..L2: |
| popl %eax |
| lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%eax), %eax |
| lea static_const_table@GOTOFF(%eax), %eax |
| ret |
| .size static_func,.-static_func |
| # -- End static_func |
| |
| # -- Begin log |
| ENTRY(log) |
| # parameter 1: 8 + %ebp |
| ..B2.1: |
| ..B2.2: |
| pushl %ebp |
| movl %esp, %ebp |
| subl $104, %esp |
| movl %ebx, 40(%esp) |
| call static_func |
| movl %eax, %ebx |
| xorpd %xmm2, %xmm2 |
| movl $16368, %eax |
| pinsrw $3, %eax, %xmm2 |
| xorpd %xmm3, %xmm3 |
| movl $30704, %edx |
| pinsrw $3, %edx, %xmm3 |
| movsd 112(%esp), %xmm0 |
| movapd %xmm0, %xmm1 |
| movl $32768, %ecx |
| movd %ecx, %xmm4 |
| movsd 2128(%ebx), %xmm5 |
| pextrw $3, %xmm0, %eax |
| orpd %xmm2, %xmm0 |
| psllq $5, %xmm0 |
| movl $16352, %ecx |
| psrlq $34, %xmm0 |
| rcpss %xmm0, %xmm0 |
| psllq $12, %xmm1 |
| pshufd $228, %xmm5, %xmm6 |
| psrlq $12, %xmm1 |
| subl $16, %eax |
| cmpl $32736, %eax |
| jae .L_2TAG_PACKET_0.0.2 |
| .L_2TAG_PACKET_1.0.2: |
| paddd %xmm4, %xmm0 |
| orpd %xmm3, %xmm1 |
| movd %xmm0, %edx |
| psllq $29, %xmm0 |
| andpd %xmm1, %xmm5 |
| andpd %xmm6, %xmm0 |
| subsd %xmm5, %xmm1 |
| mulpd %xmm0, %xmm5 |
| andl $32752, %eax |
| subl %ecx, %eax |
| cvtsi2sdl %eax, %xmm7 |
| mulsd %xmm0, %xmm1 |
| movsd 2064(%ebx), %xmm6 |
| movapd 2080(%ebx), %xmm3 |
| subsd %xmm2, %xmm5 |
| andl $16711680, %edx |
| shrl $12, %edx |
| movapd (%ebx,%edx), %xmm0 |
| movapd 2096(%ebx), %xmm4 |
| addsd %xmm5, %xmm1 |
| movapd 2112(%ebx), %xmm2 |
| mulsd %xmm7, %xmm6 |
| pshufd $68, %xmm1, %xmm5 |
| mulsd 2072(%ebx), %xmm7 |
| mulsd %xmm1, %xmm3 |
| addsd %xmm6, %xmm0 |
| mulpd %xmm5, %xmm4 |
| mulpd %xmm5, %xmm5 |
| pshufd $228, %xmm0, %xmm6 |
| addsd %xmm1, %xmm0 |
| addpd %xmm2, %xmm4 |
| mulpd %xmm5, %xmm3 |
| subsd %xmm0, %xmm6 |
| mulsd %xmm1, %xmm4 |
| pshufd $238, %xmm0, %xmm2 |
| addsd %xmm6, %xmm1 |
| mulsd %xmm5, %xmm5 |
| addsd %xmm2, %xmm7 |
| addpd %xmm3, %xmm4 |
| addsd %xmm7, %xmm1 |
| mulpd %xmm5, %xmm4 |
| addsd %xmm4, %xmm1 |
| pshufd $238, %xmm4, %xmm5 |
| addsd %xmm5, %xmm1 |
| addsd %xmm1, %xmm0 |
| jmp .L_2TAG_PACKET_2.0.2 |
| .L_2TAG_PACKET_0.0.2: |
| movsd 112(%esp), %xmm0 |
| movapd %xmm0, %xmm1 |
| addl $16, %eax |
| cmpl $32768, %eax |
| jae .L_2TAG_PACKET_3.0.2 |
| cmpl $16, %eax |
| jb .L_2TAG_PACKET_4.0.2 |
| .L_2TAG_PACKET_5.0.2: |
| addsd %xmm0, %xmm0 |
| jmp .L_2TAG_PACKET_2.0.2 |
| .L_2TAG_PACKET_6.0.2: |
| ja .L_2TAG_PACKET_5.0.2 |
| cmpl $0, %edx |
| ja .L_2TAG_PACKET_5.0.2 |
| jmp .L_2TAG_PACKET_7.0.2 |
| .L_2TAG_PACKET_3.0.2: |
| movd %xmm1, %edx |
| psrlq $32, %xmm1 |
| movd %xmm1, %ecx |
| addl %ecx, %ecx |
| cmpl $-2097152, %ecx |
| jae .L_2TAG_PACKET_6.0.2 |
| orl %ecx, %edx |
| cmpl $0, %edx |
| je .L_2TAG_PACKET_8.0.2 |
| .L_2TAG_PACKET_7.0.2: |
| xorpd %xmm1, %xmm1 |
| xorpd %xmm0, %xmm0 |
| movl $32752, %eax |
| pinsrw $3, %eax, %xmm1 |
| movl $3, %edx |
| mulsd %xmm1, %xmm0 |
| .L_2TAG_PACKET_9.0.2: |
| movsd %xmm0, (%esp) |
| movsd 112(%esp), %xmm0 |
| fldl (%esp) |
| jmp .L_2TAG_PACKET_10.0.2 |
| .L_2TAG_PACKET_8.0.2: |
| xorpd %xmm1, %xmm1 |
| xorpd %xmm0, %xmm0 |
| movl $49136, %eax |
| pinsrw $3, %eax, %xmm0 |
| divsd %xmm1, %xmm0 |
| movl $2, %edx |
| jmp .L_2TAG_PACKET_9.0.2 |
| .L_2TAG_PACKET_4.0.2: |
| movd %xmm1, %edx |
| psrlq $32, %xmm1 |
| movd %xmm1, %ecx |
| orl %ecx, %edx |
| cmpl $0, %edx |
| je .L_2TAG_PACKET_8.0.2 |
| xorpd %xmm1, %xmm1 |
| movl $18416, %eax |
| pinsrw $3, %eax, %xmm1 |
| mulsd %xmm1, %xmm0 |
| movapd %xmm0, %xmm1 |
| pextrw $3, %xmm0, %eax |
| orpd %xmm2, %xmm0 |
| psllq $5, %xmm0 |
| movl $18416, %ecx |
| psrlq $34, %xmm0 |
| rcpss %xmm0, %xmm0 |
| psllq $12, %xmm1 |
| pshufd $228, %xmm5, %xmm6 |
| psrlq $12, %xmm1 |
| jmp .L_2TAG_PACKET_1.0.2 |
| .L_2TAG_PACKET_2.0.2: |
| movsd %xmm0, 24(%esp) |
| fldl 24(%esp) |
| .L_2TAG_PACKET_10.0.2: |
| movl 40(%esp), %ebx |
| movl %ebp, %esp |
| popl %ebp |
| ret |
| ..B2.3: |
| END(log) |
| # -- End log |
| |
| # Start file scope ASM |
| ALIAS_SYMBOL(logl, log); |
| # End file scope ASM |
| .section .rodata, "a" |
| .align 16 |
| .align 16 |
| static_const_table: |
| .long 4277811200 |
| .long 1072049730 |
| .long 2479318832 |
| .long 1026487127 |
| .long 2854492160 |
| .long 1072033410 |
| .long 215631550 |
| .long 1025638968 |
| .long 1547061248 |
| .long 1072017216 |
| .long 2886781435 |
| .long 1026423395 |
| .long 649825280 |
| .long 1072001146 |
| .long 4281533405 |
| .long 1024038923 |
| .long 646346752 |
| .long 1071985198 |
| .long 1562735921 |
| .long 1023790276 |
| .long 2203734016 |
| .long 1071969370 |
| .long 1838397691 |
| .long 3173936209 |
| .long 1872169984 |
| .long 1071953661 |
| .long 3981202460 |
| .long 1022325013 |
| .long 669557760 |
| .long 1071938069 |
| .long 4182597802 |
| .long 3173174122 |
| .long 4076413952 |
| .long 1071922591 |
| .long 1209029111 |
| .long 3170736207 |
| .long 556125184 |
| .long 1071907228 |
| .long 821086028 |
| .long 3173437049 |
| .long 204914688 |
| .long 1071891976 |
| .long 2097025986 |
| .long 3171071798 |
| .long 387545088 |
| .long 1071876834 |
| .long 3142936996 |
| .long 3173092218 |
| .long 2912783360 |
| .long 1071861800 |
| .long 2502420140 |
| .long 1024505919 |
| .long 1144260608 |
| .long 1071846874 |
| .long 3315658140 |
| .long 3173469843 |
| .long 1471209472 |
| .long 1071832053 |
| .long 129621009 |
| .long 3172443877 |
| .long 1829683200 |
| .long 1071817336 |
| .long 3885467693 |
| .long 1025535275 |
| .long 288676864 |
| .long 1071802722 |
| .long 86139472 |
| .long 3171639793 |
| .long 3636378624 |
| .long 1071788208 |
| .long 1850238587 |
| .long 1024654342 |
| .long 1606817792 |
| .long 1071773795 |
| .long 3388899795 |
| .long 3173675586 |
| .long 1236164608 |
| .long 1071759480 |
| .long 3983599207 |
| .long 1020046558 |
| .long 1089616896 |
| .long 1071745262 |
| .long 4171974224 |
| .long 1024773198 |
| .long 4143093760 |
| .long 1071731139 |
| .long 2727587401 |
| .long 3173965207 |
| .long 600267776 |
| .long 1071717112 |
| .long 3147685042 |
| .long 3173353031 |
| .long 2249313280 |
| .long 1071703177 |
| .long 125835074 |
| .long 1025255832 |
| .long 3805303808 |
| .long 1071689334 |
| .long 2289991207 |
| .long 1025460331 |
| .long 87278592 |
| .long 1071675583 |
| .long 1106114045 |
| .long 1025933602 |
| .long 3195405312 |
| .long 1071661920 |
| .long 3885316576 |
| .long 3171206239 |
| .long 3853649920 |
| .long 1071648346 |
| .long 2977069852 |
| .long 3171236771 |
| .long 2944026624 |
| .long 1071625048 |
| .long 1008093493 |
| .long 1023444474 |
| .long 3993180160 |
| .long 1071598247 |
| .long 1862355595 |
| .long 1024642533 |
| .long 1454641152 |
| .long 1071571617 |
| .long 1514603089 |
| .long 1026500596 |
| .long 3286085632 |
| .long 1071545154 |
| .long 1400028424 |
| .long 3173279056 |
| .long 438773760 |
| .long 1071518858 |
| .long 120727864 |
| .long 3172148914 |
| .long 1212979200 |
| .long 1071492725 |
| .long 1625055594 |
| .long 3172901933 |
| .long 1189017600 |
| .long 1071466754 |
| .long 3920062376 |
| .long 1025727407 |
| .long 403064832 |
| .long 1071440943 |
| .long 1053271728 |
| .long 3171391427 |
| .long 3343210496 |
| .long 1071415289 |
| .long 3243395502 |
| .long 3173627613 |
| .long 1765777408 |
| .long 1071389792 |
| .long 2145968512 |
| .long 1026354304 |
| .long 461430784 |
| .long 1071364449 |
| .long 4094322285 |
| .long 1026021467 |
| .long 71706624 |
| .long 1071339258 |
| .long 763632021 |
| .long 1024496933 |
| .long 1380503552 |
| .long 1071314217 |
| .long 1383547992 |
| .long 3173088453 |
| .long 1015732224 |
| .long 1071289325 |
| .long 3198646877 |
| .long 1025390322 |
| .long 35977216 |
| .long 1071264580 |
| .long 2141026805 |
| .long 1025754693 |
| .long 3927306240 |
| .long 1071239979 |
| .long 282116272 |
| .long 3173394334 |
| .long 1125341184 |
| .long 1071215523 |
| .long 2768427504 |
| .long 3172279059 |
| .long 1666971648 |
| .long 1071191208 |
| .long 786837629 |
| .long 3172427445 |
| .long 2827694080 |
| .long 1071167033 |
| .long 3857122416 |
| .long 3173014241 |
| .long 2003683328 |
| .long 1071142997 |
| .long 859010954 |
| .long 1026545007 |
| .long 1004017664 |
| .long 1071119098 |
| .long 3356644970 |
| .long 3173458064 |
| .long 1753020416 |
| .long 1071095334 |
| .long 788338552 |
| .long 1026157693 |
| .long 1992718336 |
| .long 1071071704 |
| .long 1239179443 |
| .long 1026394889 |
| .long 3870234624 |
| .long 1071048206 |
| .long 2082614663 |
| .long 1024926053 |
| .long 1050437632 |
| .long 1071024840 |
| .long 660007840 |
| .long 1025548499 |
| .long 188395520 |
| .long 1071001603 |
| .long 3878792704 |
| .long 3173889571 |
| .long 3747176448 |
| .long 1070978493 |
| .long 144991708 |
| .long 3171552042 |
| .long 1405669376 |
| .long 1070955511 |
| .long 3999088879 |
| .long 1025486317 |
| .long 121151488 |
| .long 1070932654 |
| .long 2170865497 |
| .long 1026473584 |
| .long 2652319744 |
| .long 1070909920 |
| .long 453695652 |
| .long 3173916809 |
| .long 3262236672 |
| .long 1070887309 |
| .long 157800053 |
| .long 3173984206 |
| .long 601221120 |
| .long 1070864820 |
| .long 3968917661 |
| .long 1023992886 |
| .long 1999843328 |
| .long 1070842450 |
| .long 3053895004 |
| .long 1024998228 |
| .long 1992167424 |
| .long 1070820199 |
| .long 2968614856 |
| .long 1024552653 |
| .long 3788726272 |
| .long 1070798065 |
| .long 3542170808 |
| .long 3173573242 |
| .long 2094829568 |
| .long 1070776048 |
| .long 1246758132 |
| .long 1026202874 |
| .long 288675840 |
| .long 1070754146 |
| .long 3747328950 |
| .long 1026331585 |
| .long 1829681152 |
| .long 1070732357 |
| .long 3125197546 |
| .long 1024100318 |
| .long 1666869248 |
| .long 1070710681 |
| .long 1363656119 |
| .long 1026336493 |
| .long 3417110528 |
| .long 1070689116 |
| .long 4154791553 |
| .long 1026267853 |
| .long 2183653376 |
| .long 1070667662 |
| .long 1671819292 |
| .long 3173785870 |
| .long 1734434816 |
| .long 1070646317 |
| .long 373091049 |
| .long 1025972363 |
| .long 1615681536 |
| .long 1070625080 |
| .long 384650897 |
| .long 1022926043 |
| .long 1445382144 |
| .long 1070603950 |
| .long 344320330 |
| .long 3172397196 |
| .long 1823715328 |
| .long 1070569756 |
| .long 3389841200 |
| .long 1025231852 |
| .long 3839688704 |
| .long 1070527917 |
| .long 1706790417 |
| .long 3167363349 |
| .long 4293332992 |
| .long 1070486286 |
| .long 1614935088 |
| .long 1019351591 |
| .long 2966720512 |
| .long 1070444861 |
| .long 4145393717 |
| .long 3173711658 |
| .long 4066729984 |
| .long 1070403639 |
| .long 1974925028 |
| .long 3171437182 |
| .long 3337621504 |
| .long 1070362619 |
| .long 3314953170 |
| .long 3169971314 |
| .long 943448064 |
| .long 1070321799 |
| .long 1498682038 |
| .long 3173862340 |
| .long 1465634816 |
| .long 1070281176 |
| .long 1319952810 |
| .long 3171693965 |
| .long 1015734272 |
| .long 1070240749 |
| .long 1347821929 |
| .long 3173544515 |
| .long 118001664 |
| .long 1070200516 |
| .long 1751482746 |
| .long 1026134093 |
| .long 3707174912 |
| .long 1070160474 |
| .long 1486946159 |
| .long 1023930920 |
| .long 3946381312 |
| .long 1070120623 |
| .long 2867408081 |
| .long 3171368276 |
| .long 1699848192 |
| .long 1070080961 |
| .long 2590187139 |
| .long 1025379803 |
| .long 2235846656 |
| .long 1070041485 |
| .long 1888568069 |
| .long 3172754960 |
| .long 2339729408 |
| .long 1070002194 |
| .long 3852214753 |
| .long 3173323149 |
| .long 3196850176 |
| .long 1069963086 |
| .long 742141560 |
| .long 1025101707 |
| .long 1800683520 |
| .long 1069924160 |
| .long 3949500444 |
| .long 3172102179 |
| .long 3835801600 |
| .long 1069885413 |
| .long 3848895943 |
| .long 1025913832 |
| .long 2201202688 |
| .long 1069846845 |
| .long 1425913464 |
| .long 1025868665 |
| .long 2778279936 |
| .long 1069808453 |
| .long 2120889677 |
| .long 3173831128 |
| .long 2954203136 |
| .long 1069770236 |
| .long 592147081 |
| .long 1019621288 |
| .long 210141184 |
| .long 1069732193 |
| .long 3414275233 |
| .long 1023647084 |
| .long 709476352 |
| .long 1069694321 |
| .long 2413027164 |
| .long 1024462115 |
| .long 2116284416 |
| .long 1069656619 |
| .long 1144559924 |
| .long 1026336654 |
| .long 2183651328 |
| .long 1069619086 |
| .long 3459057650 |
| .long 1025634168 |
| .long 3047047168 |
| .long 1069581720 |
| .long 1879674924 |
| .long 3173508573 |
| .long 970711040 |
| .long 1069541521 |
| .long 1335954173 |
| .long 3173332182 |
| .long 2198478848 |
| .long 1069467449 |
| .long 2951103968 |
| .long 3173892200 |
| .long 1669611520 |
| .long 1069393703 |
| .long 531044147 |
| .long 1025149248 |
| .long 29114368 |
| .long 1069320280 |
| .long 3327831251 |
| .long 1025918673 |
| .long 2376949760 |
| .long 1069247176 |
| .long 737634533 |
| .long 3172176000 |
| .long 1085390848 |
| .long 1069174390 |
| .long 3108243400 |
| .long 3171828406 |
| .long 1566130176 |
| .long 1069101918 |
| .long 985483226 |
| .long 1025708380 |
| .long 792780800 |
| .long 1069029758 |
| .long 4184866295 |
| .long 1024426204 |
| .long 183156736 |
| .long 1068957907 |
| .long 2845699378 |
| .long 1022107277 |
| .long 1301782528 |
| .long 1068886362 |
| .long 1012735262 |
| .long 3173804294 |
| .long 1562411008 |
| .long 1068815121 |
| .long 2197086703 |
| .long 3170187813 |
| .long 2815549440 |
| .long 1068744181 |
| .long 2782613207 |
| .long 1026345054 |
| .long 2756124672 |
| .long 1068673540 |
| .long 2929486205 |
| .long 3173037800 |
| .long 3511050240 |
| .long 1068603195 |
| .long 1443733147 |
| .long 3173331549 |
| .long 3047047168 |
| .long 1068533144 |
| .long 1879674924 |
| .long 3172459997 |
| .long 3221667840 |
| .long 1068427825 |
| .long 1338588027 |
| .long 3171815742 |
| .long 3453861888 |
| .long 1068288883 |
| .long 1205348359 |
| .long 3172624626 |
| .long 3506110464 |
| .long 1068150514 |
| .long 893105198 |
| .long 1025571866 |
| .long 346013696 |
| .long 1068012714 |
| .long 3495569021 |
| .long 3172563349 |
| .long 4074029056 |
| .long 1067875476 |
| .long 3961106338 |
| .long 3171065595 |
| .long 3559784448 |
| .long 1067738798 |
| .long 1975385384 |
| .long 3173783155 |
| .long 797769728 |
| .long 1067602675 |
| .long 3760305787 |
| .long 1026047642 |
| .long 2313633792 |
| .long 1067467101 |
| .long 1559353171 |
| .long 1023480256 |
| .long 3960766464 |
| .long 1067213778 |
| .long 1067365107 |
| .long 1025865926 |
| .long 684261376 |
| .long 1066944805 |
| .long 844762164 |
| .long 3173687482 |
| .long 630718464 |
| .long 1066676905 |
| .long 2458269694 |
| .long 1024033081 |
| .long 1486061568 |
| .long 1066410070 |
| .long 115537874 |
| .long 3173243995 |
| .long 2743664640 |
| .long 1065886792 |
| .long 3665098304 |
| .long 3173471607 |
| .long 1971912704 |
| .long 1065357333 |
| .long 2577214440 |
| .long 3171993451 |
| .long 1498939392 |
| .long 1064306693 |
| .long 3409036923 |
| .long 1025599151 |
| .long 0 |
| .long 0 |
| .long 0 |
| .long 2147483648 |
| .long 4277811200 |
| .long 1067855426 |
| .long 2479318832 |
| .long 1022292823 |
| .long 2454267026 |
| .long 1069697316 |
| .long 0 |
| .long 3218079744 |
| .long 1030730101 |
| .long 3217380702 |
| .long 1431655765 |
| .long 1070945621 |
| .long 2576980378 |
| .long 1070176665 |
| .long 0 |
| .long 3219128320 |
| .long 0 |
| .long 4294959104 |
| .long 0 |
| .long 4294959104 |
| .type static_const_table,@object |
| .size static_const_table,2144 |
| .data |
| .section .note.GNU-stack, "" |
| # End |