OpenBLAS/kernel/generic/ztrsm_lncopy_16.c

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#include <stdio.h>
#include "common.h"

int CNAME(BLASLONG m, BLASLONG n, FLOAT *a, BLASLONG lda, BLASLONG offset, FLOAT *b){

  BLASLONG i, ii, j, jj, k;

  FLOAT *a1, *a2,  *a3,  *a4,  *a5,  *a6,  *a7,  *a8;
  FLOAT *a9, *a10, *a11, *a12, *a13, *a14, *a15, *a16;

  FLOAT data1, data2;

  lda *= 2;
  jj = offset;

  j = (n >> 4);
  while (j > 0){

    a1  = a +  0 * lda;
    a2  = a +  1 * lda;
    a3  = a +  2 * lda;
    a4  = a +  3 * lda;
    a5  = a +  4 * lda;
    a6  = a +  5 * lda;
    a7  = a +  6 * lda;
    a8  = a +  7 * lda;
    a9  = a +  8 * lda;
    a10 = a +  9 * lda;
    a11 = a + 10 * lda;
    a12 = a + 11 * lda;
    a13 = a + 12 * lda;
    a14 = a + 13 * lda;
    a15 = a + 14 * lda;
    a16 = a + 15 * lda;

    a += 16 * lda;
    ii = 0;

    for (i = 0; i < m; i++) {

      if ((ii >= jj ) && (ii - jj < 16)) {
	for (k = 0; k < ii - jj; k ++) {
	  *(b +  k * 2 + 0) = *(a1 +  k * lda + 0);
	  *(b +  k * 2 + 1) = *(a1 +  k * lda + 1);
	}
	data1 = *(a1 + (ii - jj) * lda + 0);
	data2 = *(a1 + (ii - jj) * lda + 1);

	compinv(b +  (ii - jj) * 2, data1, data2);
      }

      if (ii - jj >= 16) {
	*(b +  0) = *(a1  +  0);
	*(b +  1) = *(a1  +  1);
	*(b +  2) = *(a2  +  0);
	*(b +  3) = *(a2  +  1);
	*(b +  4) = *(a3  +  0);
	*(b +  5) = *(a3  +  1);
	*(b +  6) = *(a4  +  0);
	*(b +  7) = *(a4  +  1);
	*(b +  8) = *(a5  +  0);
	*(b +  9) = *(a5  +  1);
	*(b + 10) = *(a6  +  0);
	*(b + 11) = *(a6  +  1);
	*(b + 12) = *(a7  +  0);
	*(b + 13) = *(a7  +  1);
	*(b + 14) = *(a8  +  0);
	*(b + 15) = *(a8  +  1);
  *(b + 16) = *(a9  +  0);
	*(b + 17) = *(a9  +  1);
	*(b + 18) = *(a10  +  0);
	*(b + 19) = *(a10  +  1);
	*(b + 20) = *(a11  +  0);
	*(b + 21) = *(a11  +  1);
	*(b + 22) = *(a12  +  0);
	*(b + 23) = *(a12  +  1);
	*(b + 24) = *(a13  +  0);
	*(b + 25) = *(a13  +  1);
	*(b + 26) = *(a14  +  0);
	*(b + 27) = *(a14  +  1);
	*(b + 28) = *(a15  +  0);
	*(b + 29) = *(a15  +  1);
	*(b + 30) = *(a16  +  0);
	*(b + 31) = *(a16  +  1);
      }

      a1  += 2;
      a2  += 2;
      a3  += 2;
      a4  += 2;
      a5  += 2;
      a6  += 2;
      a7  += 2;
      a8  += 2;
      a9  += 2;
      a10  += 2;
      a11  += 2;
      a12  += 2;
      a13  += 2;
      a14  += 2;
      a15  += 2;
      a16  += 2;
      b  += 32;
      ii ++;
    }

    jj += 16;
    j --;
  }

  if (n & 8) {
    a1  = a +  0 * lda;
    a2  = a +  1 * lda;
    a3  = a +  2 * lda;
    a4  = a +  3 * lda;
    a5  = a +  4 * lda;
    a6  = a +  5 * lda;
    a7  = a +  6 * lda;
    a8  = a +  7 * lda;

    a += 8 * lda;
    ii = 0;

    for (i = 0; i < m; i++) {

      if ((ii >= jj ) && (ii - jj < 8)) {
	for (k = 0; k < ii - jj; k ++) {
	  *(b +  k * 2 + 0) = *(a1 +  k * lda + 0);
	  *(b +  k * 2 + 1) = *(a1 +  k * lda + 1);
	}
	data1 = *(a1 + (ii - jj) * lda + 0);
	data2 = *(a1 + (ii - jj) * lda + 1);

	compinv(b +  (ii - jj) * 2, data1, data2);
      }

      if (ii - jj >= 8) {
	*(b +  0) = *(a1  +  0);
	*(b +  1) = *(a1  +  1);
	*(b +  2) = *(a2  +  0);
	*(b +  3) = *(a2  +  1);
	*(b +  4) = *(a3  +  0);
	*(b +  5) = *(a3  +  1);
	*(b +  6) = *(a4  +  0);
	*(b +  7) = *(a4  +  1);
	*(b +  8) = *(a5  +  0);
	*(b +  9) = *(a5  +  1);
	*(b + 10) = *(a6  +  0);
	*(b + 11) = *(a6  +  1);
	*(b + 12) = *(a7  +  0);
	*(b + 13) = *(a7  +  1);
	*(b + 14) = *(a8  +  0);
	*(b + 15) = *(a8  +  1);
      }

      a1  += 2;
      a2  += 2;
      a3  += 2;
      a4  += 2;
      a5  += 2;
      a6  += 2;
      a7  += 2;
      a8  += 2;
      b  += 16;
      ii ++;
    }

    jj += 8;
  }

  if (n & 4) {

    a1  = a +  0 * lda;
    a2  = a +  1 * lda;
    a3  = a +  2 * lda;
    a4  = a +  3 * lda;
    a += 4 * lda;
    ii = 0;

    for (i = 0; i < m; i++) {

      if ((ii >= jj ) && (ii - jj < 4)) {
	for (k = 0; k < ii - jj; k ++) {
	  *(b +  k * 2 + 0) = *(a1 +  k * lda + 0);
	  *(b +  k * 2 + 1) = *(a1 +  k * lda + 1);
	}
	data1 = *(a1 + (ii - jj) * lda + 0);
	data2 = *(a1 + (ii - jj) * lda + 1);

	compinv(b +  (ii - jj) * 2, data1, data2);
      }

      if (ii - jj >= 4) {
	*(b +  0) = *(a1  +  0);
	*(b +  1) = *(a1  +  1);
	*(b +  2) = *(a2  +  0);
	*(b +  3) = *(a2  +  1);
	*(b +  4) = *(a3  +  0);
	*(b +  5) = *(a3  +  1);
	*(b +  6) = *(a4  +  0);
	*(b +  7) = *(a4  +  1);
      }

      a1  += 2;
      a2  += 2;
      a3  += 2;
      a4  += 2;
      b  += 8;
      ii ++;
    }

    jj += 4;
  }

  if (n & 2) {

    a1  = a +  0 * lda;
    a2  = a +  1 * lda;
    a += 2 * lda;
    ii = 0;

    for (i = 0; i < m; i++) {

      if ((ii >= jj ) && (ii - jj < 2)) {
	for (k = 0; k < ii - jj; k ++) {
	  *(b +  k * 2 + 0) = *(a1 +  k * lda + 0);
	  *(b +  k * 2 + 1) = *(a1 +  k * lda + 1);
	}
	data1 = *(a1 + (ii - jj) * lda + 0);
	data2 = *(a1 + (ii - jj) * lda + 1);

	compinv(b +  (ii - jj) * 2, data1, data2);
      }

      if (ii - jj >= 2) {
	*(b +  0) = *(a1  +  0);
	*(b +  1) = *(a1  +  1);
	*(b +  2) = *(a2  +  0);
	*(b +  3) = *(a2  +  1);
      }

      a1  += 2;
      a2  += 2;
      b  += 4;
      ii ++;
    }

    jj += 2;
  }

  if (n & 1) {

    a1  = a +  0 * lda;
    ii = 0;

    for (i = 0; i < m; i++) {

      if ((ii >= jj ) && (ii - jj < 1)) {
	for (k = 0; k < ii - jj; k ++) {
	  *(b +  k * 2 + 0) = *(a1 +  k * lda + 0);
	  *(b +  k * 2 + 1) = *(a1 +  k * lda + 1);
	}
	data1 = *(a1 + (ii - jj) * lda + 0);
	data2 = *(a1 + (ii - jj) * lda + 1);

	compinv(b +  (ii - jj) * 2, data1, data2);
      }

      if (ii - jj >= 1) {
	*(b +  0) = *(a1  +  0);
	*(b +  1) = *(a1  +  1);
      }

      a1  += 2;
      b  += 2;
      ii ++;
    }
  }

  return 0;
}