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OpenBLAS/kernel/zarch/zscal.c

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  1. /***************************************************************************

  2. Copyright (c) 2013 - 2017, The OpenBLAS Project

  3. All rights reserved.

  4. Redistribution and use in source and binary forms, with or without

  5. modification, are permitted provided that the following conditions are

  6. met:

  7. 1. Redistributions of source code must retain the above copyright

  8. notice, this list of conditions and the following disclaimer.

  9. 2. Redistributions in binary form must reproduce the above copyright

  10. notice, this list of conditions and the following disclaimer in

  11. the documentation and/or other materials provided with the

  12. distribution.

  13. 3. Neither the name of the OpenBLAS project nor the names of

  14. its contributors may be used to endorse or promote products

  15. derived from this software without specific prior written permission.

  16. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  17. AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  18. IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  19. ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE

  20. LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

  21. DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

  22. SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

  23. CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

  24. OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE

  25. USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

  26.  *****************************************************************************/

  27. 

  28. #include "common.h"

  29. 

  30.  

  31. 

  32. static void   zscal_kernel_8(BLASLONG n, FLOAT da_r,FLOAT da_i, FLOAT *x) {

  33.     __asm__(

  34. 

  35.             "pfd    1, 0(%[x_ptr])     \n\t"

  36.             "lgdr   %%r0,%[alpha_r]    \n\t"

  37.             "vlvgp  %%v24,%%r0,%%r0    \n\t"

  38.             "lgdr   %%r0,%[alpha_i]    \n\t"

  39.             "vlvgp  %%v25,%%r0,%%r0    \n\t"                

  40.             "sllg   %%r0,%[n],4        \n\t"

  41.             "agr    %%r0,%[x_ptr]      \n\t"

  42.             ".align 16 \n\t"

  43.             "1:     \n\t"

  44.             "pfd 2, 256(%[x_ptr] ) \n\t"

  45. 

  46.             "vleg   %%v20 ,  0(%[x_ptr]),0  \n\t" 

  47.             "vleg   %%v21 ,  8(%[x_ptr]),0  \n\t"

  48.             "vleg   %%v20 , 16(%[x_ptr]),1  \n\t"

  49.             "vleg   %%v21 , 24(%[x_ptr]),1  \n\t"

  50.             "vleg   %%v22 , 32(%[x_ptr]),0  \n\t" 

  51.             "vleg   %%v23 , 40(%[x_ptr]),0  \n\t"

  52.             "vleg   %%v22 , 48(%[x_ptr]),1  \n\t"

  53.             "vleg   %%v23 , 56(%[x_ptr]),1  \n\t"

  54.             "vfmdb  %%v16,  %%v21, %%v25    \n\t"

  55.             "vfmdb  %%v17,  %%v20, %%v25    \n\t"

  56.             "vfmdb  %%v18,  %%v23, %%v25    \n\t"

  57.             "vfmdb  %%v19,  %%v22, %%v25    \n\t"

  58.             "vfmsdb %%v16, %%v20, %%v24 ,%%v16  \n\t"

  59.             "vfmadb %%v17, %%v21, %%v24, %%v17  \n\t"

  60.             "vfmsdb %%v18, %%v22, %%v24, %%v18  \n\t"

  61.             "vfmadb %%v19, %%v23, %%v24, %%v19  \n\t"

  62.             "vsteg  %%v16 ,  0(%[x_ptr]),0  \n\t" 

  63.             "vsteg  %%v17 ,  8(%[x_ptr]),0  \n\t"

  64.             "vsteg  %%v16 , 16(%[x_ptr]),1  \n\t"

  65.             "vsteg  %%v17 , 24(%[x_ptr]),1  \n\t"

  66.             "vsteg  %%v18 , 32(%[x_ptr]),0  \n\t" 

  67.             "vsteg  %%v19 , 40(%[x_ptr]),0  \n\t"

  68.             "vsteg  %%v18 , 48(%[x_ptr]),1  \n\t"

  69.             "vsteg  %%v19 , 56(%[x_ptr]),1  \n\t"

  70.             "vleg   %%v20 ,  64(%[x_ptr]),0 \n\t" 

  71.             "vleg   %%v21 , 72(%[x_ptr]),0  \n\t"

  72.             "vleg   %%v20 , 80(%[x_ptr]),1  \n\t"

  73.             "vleg   %%v21 , 88(%[x_ptr]),1  \n\t"

  74.             "vleg   %%v22 , 96(%[x_ptr]),0  \n\t" 

  75.             "vleg   %%v23 , 104(%[x_ptr]),0 \n\t"

  76.             "vleg   %%v22 , 112(%[x_ptr]),1 \n\t"

  77.             "vleg   %%v23 , 120(%[x_ptr]),1 \n\t"

  78.             "vfmdb  %%v16,  %%v21, %%v25    \n\t"

  79.             "vfmdb  %%v17,  %%v20, %%v25    \n\t"

  80.             "vfmdb  %%v18,  %%v23, %%v25    \n\t"

  81.             "vfmdb  %%v19,  %%v22, %%v25    \n\t"

  82.             "vfmsdb %%v16, %%v20, %%v24 ,%%v16  \n\t"

  83.             "vfmadb %%v17, %%v21, %%v24, %%v17  \n\t"

  84.             "vfmsdb %%v18, %%v22, %%v24, %%v18  \n\t"

  85.             "vfmadb %%v19, %%v23, %%v24, %%v19  \n\t"

  86.             "vsteg  %%v16 , 64(%[x_ptr]),0  \n\t" 

  87.             "vsteg  %%v17 , 72(%[x_ptr]),0  \n\t"

  88.             "vsteg  %%v16 , 80(%[x_ptr]),1  \n\t"

  89.             "vsteg  %%v17 , 88(%[x_ptr]),1  \n\t"

  90.             "vsteg  %%v18 ,  96(%[x_ptr]),0 \n\t" 

  91.             "vsteg  %%v19 , 104(%[x_ptr]),0 \n\t"

  92.             "vsteg  %%v18 , 112(%[x_ptr]),1 \n\t"

  93.             "vsteg  %%v19 , 120(%[x_ptr]),1 \n\t"

  94.    

  95.             "la     %[x_ptr],128(%[x_ptr])      \n\t"

  96.             "clgrjl %[x_ptr],%%r0,1b        \n\t"

  97.             : [mem] "+m" (*(double (*)[2*n])x) ,[x_ptr] "+&a"(x)

  98.             : [n] "r"(n), [alpha_r] "f"(da_r),[alpha_i] "f"(da_i)

  99.             : "cc", "r0","v16","v17","v18","v19","v20","v21","v22","v23","v24","v25"

  100.             );

  101. 

  102. 

  103. }

  104.  

  105. static void   zscal_kernel_8_zero_r(BLASLONG n, FLOAT da_i, FLOAT *x) {

  106.  

  107.         __asm__ (   "pfd    2, 0(%1)          \n\t" 

  108.                     "lgdr   %%r0,%[alpha]     \n\t"

  109.                     "vlvgp  %%v16,%%r0,%%r0   \n\t" //load both from disjoint

  110.                     "vflcdb %%v16,%%v16       \n\t" //complement both

  111.                     "vlvgg  %%v16,%%r0,0      \n\t" //restore 1st                   

  112.                     "vlr    %%v17 ,%%v16      \n\t" 

  113.                     "sllg   %%r0,%[n],4       \n\t"  

  114.                     "agr    %%r0,%[x_ptr]     \n\t"

  115.                     ".align 16    \n\t"    

  116.                     "1:     \n\t"  

  117.                     "vl     %%v24, 0(%[x_ptr])      \n\t"

  118.                     "vfmdb  %%v24,%%v24,%%v16        \n\t"

  119.                     "vsteg  %%v24, 0(%[x_ptr]),1    \n\t" 

  120.                     "vsteg  %%v24, 8(%[x_ptr]),0    \n\t" 

  121.                     "vl     %%v25, 16(%[x_ptr])     \n\t"

  122.                     "vfmdb  %%v25,%%v25,%%v17        \n\t"  

  123.                     "vsteg  %%v25, 16(%[x_ptr]),1   \n\t" 

  124.                     "vsteg  %%v25, 24(%[x_ptr]),0   \n\t" 

  125.                     "vl     %%v26, 32(%[x_ptr])     \n\t"

  126.                     "vfmdb  %%v26,%%v26,%%v16       \n\t"

  127.                     "vsteg  %%v26, 32(%[x_ptr]),1   \n\t" 

  128.                     "vsteg  %%v26, 40(%[x_ptr]),0   \n\t"   

  129.                     "vl     %%v27, 48(%[x_ptr])     \n\t" 

  130.                     "vfmdb  %%v27,%%v27,%%v17 \n\t"  

  131.                     "vsteg  %%v27, 48(%[x_ptr]),1   \n\t" 

  132.                     "vsteg  %%v27, 56(%[x_ptr]),0   \n\t" 

  133.                     "vl     %%v28, 64(%[x_ptr])     \n\t"

  134.                     "vfmdb  %%v28,%%v28,%%v16        \n\t"

  135.                     "vsteg  %%v28, 64(%[x_ptr]),1   \n\t" 

  136.                     "vsteg  %%v28, 72(%[x_ptr]),0   \n\t" 

  137.                     "vl     %%v29, 80(%[x_ptr])     \n\t"

  138.                     "vfmdb  %%v29,%%v29,%%v17        \n\t"  

  139.                     "vsteg  %%v29, 80(%[x_ptr]),1   \n\t" 

  140.                     "vsteg  %%v29, 88(%[x_ptr]),0   \n\t" 

  141.                     "vl     %%v30, 96(%[x_ptr])     \n\t"

  142.                     "vfmdb  %%v30,%%v30,%%v16       \n\t"

  143.                     "vsteg  %%v30,  96(%[x_ptr]),1  \n\t" 

  144.                     "vsteg  %%v30, 104(%[x_ptr]),0  \n\t"  

  145.                     "vl     %%v31, 112(%[x_ptr])    \n\t" 

  146.                     "vfmdb  %%v31,%%v31,%%v17 \n\t"  

  147.                     "vsteg  %%v31, 112(%[x_ptr]),1  \n\t" 

  148.                     "vsteg  %%v31, 120(%[x_ptr]),0  \n\t" 

  149.                     "la     %[x_ptr],128(%[x_ptr])  \n\t"

  150.                     "clgrjl %[x_ptr],%%r0,1b \n\t"

  151.                     : [mem] "+m" (*(double (*)[2*n])x) ,[x_ptr] "+&a"(x)

  152.                     : [n] "r"(n),[alpha] "f"(da_i)

  153.                     :"cc", "r0","f0", "f1","v16","v17" ,"v24","v25","v26","v27","v28","v29","v30","v31" 

  154.                  );

  155. 

  156. 

  157. }

  158. 

  159. static void   zscal_kernel_8_zero_i(BLASLONG n, FLOAT da_r, FLOAT *x) {

  160.            __asm__ ("pfd    2, 0(%[x_ptr])     \n\t"      

  161.                     "lgdr   %%r0,%[alpha]      \n\t"

  162.                     "vlvgp  %%v18,%%r0,%%r0    \n\t"

  163.                     "vlr    %%v19,%%v18        \n\t"

  164.                     "vlr    %%v16,%%v18        \n\t"

  165.                     "vlr    %%v17,%%v18        \n\t" 

  166.                     "sllg   %%r0,%[n],4        \n\t"  

  167.                     "agr    %%r0,%[x_ptr]      \n\t"

  168.                     ".align 16 \n\t"    

  169.                     "1:    \n\t"  

  170.                     "vl     %%v24, 0(%[x_ptr])  \n\t"

  171.                     "vfmdb  %%v24,%%v24,%%v18   \n\t"

  172.                     "vst    %%v24, 0(%[x_ptr])  \n\t" 

  173.                     "vl     %%v25, 16(%[x_ptr]) \n\t"

  174.                     "vfmdb  %%v25,%%v25,%%v19   \n\t"  

  175.                     "vst    %%v25, 16(%[x_ptr]) \n\t" 

  176.                     "vl     %%v26, 32(%[x_ptr]) \n\t"

  177.                     "vfmdb  %%v26,%%v26,%%v16   \n\t"

  178.                     "vst    %%v26, 32(%[x_ptr]) \n\t"  

  179.                     "vl     %%v27, 48(%[x_ptr]) \n\t" 

  180.                     "vfmdb  %%v27,%%v27,%%v17   \n\t"  

  181.                     "vst    %%v27, 48(%[x_ptr]) \n\t"  

  182.                     "vl     %%v28, 64(%[x_ptr]) \n\t"

  183.                     "vfmdb  %%v28,%%v28,%%v18   \n\t"

  184.                     "vst    %%v28, 64(%[x_ptr]) \n\t" 

  185.                     "vl     %%v29, 80(%[x_ptr]) \n\t"

  186.                     "vfmdb  %%v29,%%v29,%%v19   \n\t"  

  187.                     "vst    %%v29, 80(%[x_ptr]) \n\t" 

  188.                     "vl     %%v30, 96(%[x_ptr]) \n\t"

  189.                     "vfmdb  %%v30,%%v30,%%v16   \n\t"

  190.                     "vst    %%v30, 96(%[x_ptr]) \n\t"  

  191.                     "vl     %%v31,112(%[x_ptr]) \n\t" 

  192.                     "vfmdb  %%v31,%%v31,%%v17   \n\t"  

  193.                     "vst    %%v31,112(%[x_ptr]) \n\t"

  194.                     "la     %[x_ptr],128(%[x_ptr])   \n\t"

  195.                     "clgrjl %[x_ptr],%%r0,1b    \n\t"

  196.                     : [mem] "+m" (*(double (*)[2*n])x) ,[x_ptr] "+&a"(x)

  197.                     : [n] "r"(n),[alpha] "f"(da_r)

  198.                     : "cc", "r0","v16", "v17","v18","v19","v24","v25","v26","v27","v28","v29","v30","v31" 

  199.                  );

  200. 

  201. }

  202. 

  203. static void  zscal_kernel_8_zero(BLASLONG n,  FLOAT *x) {

  204. 

  205.      __asm__ (      "pfd 2, 0(%[x_ptr])    \n\t"      

  206.                     "vzero %%v24     \n\t"

  207.                     "vzero %%v25     \n\t"

  208.                     "vzero %%v26     \n\t"

  209.                     "vzero %%v27     \n\t" 

  210.                     "sllg  %%r0,%[n],4 \n\t"  

  211.                     "agr   %%r0,%[x_ptr]   \n\t"

  212.                     ".align 16 \n\t"    

  213.                     "1: \n\t" 

  214.                     "pfd     2, 256( %[x_ptr])  \n\t"     

  215.                     "vst  %%v24,  0( %[x_ptr])  \n\t" 

  216.                     "vst  %%v25, 16( %[x_ptr])  \n\t" 

  217.                     "vst  %%v26, 32( %[x_ptr])  \n\t"   

  218.                     "vst  %%v27, 48( %[x_ptr])  \n\t"  

  219.                     "vst  %%v24, 64( %[x_ptr])  \n\t" 

  220.                     "vst  %%v25, 80( %[x_ptr])  \n\t" 

  221.                     "vst  %%v26, 96( %[x_ptr])  \n\t"  

  222.                     "vst  %%v27,112( %[x_ptr])  \n\t"  

  223.               

  224.                     "la     %[x_ptr],128(%[x_ptr]) \n\t"

  225.                     "clgrjl %[x_ptr],%%r0,1b \n\t"

  226.                     : [mem] "+m" (*(double (*)[2*n])x),[x_ptr] "+&a"(x) 

  227.                     : [n] "r"(n)

  228.                     :"cc" ,"r0","v24","v25","v26","v27"

  229.                  );

  230. 

  231. }

  232. 

  233. 

  234. 

  235. 

  236. 

  237. static void zscal_kernel_inc_8(BLASLONG n, FLOAT da_r,FLOAT da_i, FLOAT *x, BLASLONG inc_x) {

  238. 

  239.     BLASLONG i;

  240.     BLASLONG inc_x2 = 2 * inc_x;

  241.     BLASLONG inc_x3 = inc_x2 + inc_x;

  242.     FLOAT t0, t1, t2, t3; 

  243. 

  244.     for (i = 0; i < n; i += 4) {

  245.         t0 = da_r * x[0] - da_i * x[1];

  246.         t1 = da_r * x[inc_x] - da_i * x[inc_x + 1];

  247.         t2 = da_r * x[inc_x2] - da_i * x[inc_x2 + 1];

  248.         t3 = da_r * x[inc_x3] - da_i * x[inc_x3 + 1];

  249. 

  250.         x[1] = da_i * x[0] + da_r * x[1];

  251.         x[inc_x + 1] = da_i * x[inc_x] + da_r * x[inc_x + 1];

  252.         x[inc_x2 + 1] = da_i * x[inc_x2] + da_r * x[inc_x2 + 1];

  253.         x[inc_x3 + 1] = da_i * x[inc_x3] + da_r * x[inc_x3 + 1];

  254. 

  255.         x[0] = t0;

  256.         x[inc_x] = t1;

  257.         x[inc_x2] = t2;

  258.         x[inc_x3] = t3;

  259. 

  260.         x += 4 * inc_x;

  261. 

  262.     }

  263. 

  264. 

  265. }

  266. 

  267. int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r, FLOAT da_i, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2) {

  268.     BLASLONG i = 0, j = 0;

  269.     FLOAT temp0;

  270.     FLOAT temp1;

  271. 

  272. 

  273.     if (inc_x != 1) {

  274.         inc_x <<= 1;

  275. 

  276.         if (da_r == 0.0) {

  277. 

  278.             BLASLONG n1 = n & -2;

  279. 

  280.             if (da_i == 0.0) {

  281. 

  282.                 while (j < n1) {

  283. 

  284.                     x[i] = 0.0;

  285.                     x[i + 1] = 0.0;

  286.                     x[i + inc_x] = 0.0;

  287.                     x[i + 1 + inc_x] = 0.0;

  288.                     i += 2 * inc_x;

  289.                     j += 2;

  290. 

  291.                 }

  292. 

  293.                 while (j < n) {

  294. 

  295.                     x[i] = 0.0;

  296.                     x[i + 1] = 0.0;

  297.                     i += inc_x;

  298.                     j++;

  299. 

  300.                 }

  301. 

  302.             } else {

  303. 

  304.                 while (j < n1) {

  305. 

  306.                     temp0 = -da_i * x[i + 1];

  307.                     x[i + 1] = da_i * x[i];

  308.                     x[i] = temp0;

  309.                     temp1 = -da_i * x[i + 1 + inc_x];

  310.                     x[i + 1 + inc_x] = da_i * x[i + inc_x];

  311.                     x[i + inc_x] = temp1;

  312.                     i += 2 * inc_x;

  313.                     j += 2;

  314. 

  315.                 }

  316. 

  317.                 while (j < n) {

  318. 

  319.                     temp0 = -da_i * x[i + 1];

  320.                     x[i + 1] = da_i * x[i];

  321.                     x[i] = temp0;

  322.                     i += inc_x;

  323.                     j++;

  324. 

  325.                 }

  326. 

  327. 

  328. 

  329.             }

  330. 

  331.         } else {

  332. 

  333. 

  334.             if (da_i == 0.0) {

  335.                 BLASLONG n1 = n & -2;

  336. 

  337.                 while (j < n1) {

  338. 

  339.                     temp0 = da_r * x[i];

  340.                     x[i + 1] = da_r * x[i + 1];

  341.                     x[i] = temp0;

  342.                     temp1 = da_r * x[i + inc_x];

  343.                     x[i + 1 + inc_x] = da_r * x[i + 1 + inc_x];

  344.                     x[i + inc_x] = temp1;

  345.                     i += 2 * inc_x;

  346.                     j += 2;

  347. 

  348.                 }

  349. 

  350.                 while (j < n) {

  351. 

  352.                     temp0 = da_r * x[i];

  353.                     x[i + 1] = da_r * x[i + 1];

  354.                     x[i] = temp0;

  355.                     i += inc_x;

  356.                     j++;

  357. 

  358.                 }

  359. 

  360.             } else {

  361. 

  362.                 BLASLONG n1 = n & -8;

  363.                 if (n1 > 0) { 

  364.                     zscal_kernel_inc_8(n1, da_r,da_i, x, inc_x);

  365.                     j = n1;

  366.                     i = n1 * inc_x;

  367.                 }

  368. 

  369.                 while (j < n) {

  370. 

  371.                     temp0 = da_r * x[i] - da_i * x[i + 1];

  372.                     x[i + 1] = da_r * x[i + 1] + da_i * x[i];

  373.                     x[i] = temp0;

  374.                     i += inc_x;

  375.                     j++;

  376. 

  377.                 }

  378. 

  379.             }

  380. 

  381.         }

  382. 

  383.         return (0);

  384.     }

  385. 

  386. 

  387.     BLASLONG n1 = n & -8;

  388.     if (n1 > 0) {

  389. 

  390. 

  391.         if (da_r == 0.0)

  392.             if (da_i == 0)

  393.                 zscal_kernel_8_zero(n1,  x);

  394.             else

  395.                 zscal_kernel_8_zero_r(n1, da_i, x);

  396.         else

  397.             if (da_i == 0)

  398.             zscal_kernel_8_zero_i(n1, da_r, x);

  399.         else

  400.             zscal_kernel_8(n1, da_r,da_i, x);

  401. 

  402.         i = n1 << 1;

  403.         j = n1;

  404.     }

  405. 

  406. 

  407.     if (da_r == 0.0) {

  408. 

  409.         if (da_i == 0.0) {

  410. 

  411.             while (j < n) {

  412. 

  413.                 x[i] = 0.0;

  414.                 x[i + 1] = 0.0;

  415.                 i += 2;

  416.                 j++;

  417. 

  418.             }

  419. 

  420.         } else {

  421. 

  422.             while (j < n) {

  423. 

  424.                 temp0 = -da_i * x[i + 1];

  425.                 x[i + 1] = da_i * x[i];

  426.                 x[i] = temp0;

  427.                 i += 2;

  428.                 j++;

  429. 

  430.             }

  431. 

  432.         }

  433. 

  434.     } else {

  435. 

  436.         if (da_i == 0.0) {

  437. 

  438.             while (j < n) {

  439. 

  440.                 temp0 = da_r * x[i];

  441.                 x[i + 1] = da_r * x[i + 1];

  442.                 x[i] = temp0;

  443.                 i += 2;

  444.                 j++;

  445. 

  446.             }

  447. 

  448.         } else {

  449. 

  450.             while (j < n) {

  451. 

  452.                 temp0 = da_r * x[i] - da_i * x[i + 1];

  453.                 x[i + 1] = da_r * x[i + 1] + da_i * x[i];

  454.                 x[i] = temp0;

  455.                 i += 2;

  456.                 j++;

  457. 

  458.             }

  459. 

  460.         }

  461. 

  462.     }

  463. 

  464.     return (0);

  465. }

  466.