OpenBLAS/kernel/generic/zgemm_ncopy_16.c

/*********************************************************************/
/* Copyright 2009, 2010 The University of Texas at Austin.           */
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/* without modification, are permitted provided that the following   */
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/*                                                                   */
/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */
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/*********************************************************************/

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

int CNAME(BLASLONG m, BLASLONG n, FLOAT *a, BLASLONG lda, FLOAT *b){
  BLASLONG i, j;

  IFLOAT *aoffset;
  IFLOAT *aoffset1, *aoffset2, *aoffset3, *aoffset4;
  IFLOAT *aoffset5, *aoffset6, *aoffset7, *aoffset8;
  IFLOAT *aoffset9, *aoffset10, *aoffset11, *aoffset12;
  IFLOAT *aoffset13, *aoffset14, *aoffset15, *aoffset16;

  IFLOAT *boffset;
  IFLOAT ctemp01, ctemp02, ctemp03, ctemp04;
  IFLOAT ctemp05, ctemp06, ctemp07, ctemp08;
  IFLOAT ctemp09, ctemp10, ctemp11, ctemp12;
  IFLOAT ctemp13, ctemp14, ctemp15, ctemp16;
  IFLOAT ctemp17, ctemp18, ctemp19, ctemp20;
  IFLOAT ctemp21, ctemp22, ctemp23, ctemp24;
  IFLOAT ctemp25, ctemp26, ctemp27, ctemp28;
  IFLOAT ctemp29, ctemp30, ctemp31, ctemp32;

  aoffset = a;
  boffset = b;
  lda *= 2;

  j = (n >> 4);
  if (j > 0){
    do{
        aoffset1  = aoffset;
        aoffset2  = aoffset1  + lda;
        aoffset3  = aoffset2  + lda;
        aoffset4  = aoffset3  + lda;
        aoffset5  = aoffset4  + lda;
        aoffset6  = aoffset5  + lda;
        aoffset7  = aoffset6  + lda;
        aoffset8  = aoffset7  + lda;
        aoffset9  = aoffset8  + lda;
        aoffset10 = aoffset9  + lda;
        aoffset11 = aoffset10 + lda;
        aoffset12 = aoffset11 + lda;
        aoffset13 = aoffset12 + lda;
        aoffset14 = aoffset13 + lda;
        aoffset15 = aoffset14 + lda;
        aoffset16 = aoffset15 + lda;
        aoffset += 16 * lda;

      i = m;
      if (i > 0){
	do{
        ctemp01 = *(aoffset1 +  0);
        ctemp02 = *(aoffset1 +  1);
        ctemp03 = *(aoffset2 +  0);
        ctemp04 = *(aoffset2 +  1);
        ctemp05 = *(aoffset3 +  0);
        ctemp06 = *(aoffset3 +  1);
        ctemp07 = *(aoffset4 +  0);
        ctemp08 = *(aoffset4 +  1);
        ctemp09 = *(aoffset5 +  0);
        ctemp10 = *(aoffset5 +  1);
        ctemp11 = *(aoffset6 +  0);
        ctemp12 = *(aoffset6 +  1);
        ctemp13 = *(aoffset7 +  0);
        ctemp14 = *(aoffset7 +  1);
        ctemp15 = *(aoffset8 +  0);
        ctemp16 = *(aoffset8 +  1);

        ctemp17 = *(aoffset9 +  0);
        ctemp18 = *(aoffset9 +  1);
        ctemp19 = *(aoffset10 +  0);
        ctemp20 = *(aoffset10 +  1);
        ctemp21 = *(aoffset11 +  0);
        ctemp22 = *(aoffset11 +  1);
        ctemp23 = *(aoffset12 +  0);
        ctemp24 = *(aoffset12 +  1);
        ctemp25 = *(aoffset13 +  0);
        ctemp26 = *(aoffset13 +  1);
        ctemp27 = *(aoffset14 +  0);
        ctemp28 = *(aoffset14 +  1);
        ctemp29 = *(aoffset15 +  0);
        ctemp30 = *(aoffset15 +  1);
        ctemp31 = *(aoffset16 +  0);
        ctemp32 = *(aoffset16 +  1);

      *(boffset +  0) = ctemp01;
	  *(boffset +  1) = ctemp02;
	  *(boffset +  2) = ctemp03;
	  *(boffset +  3) = ctemp04;
	  *(boffset +  4) = ctemp05;
	  *(boffset +  5) = ctemp06;
	  *(boffset +  6) = ctemp07;
	  *(boffset +  7) = ctemp08;
	  *(boffset +  8) = ctemp09;
	  *(boffset +  9) = ctemp10;
	  *(boffset + 10) = ctemp11;
	  *(boffset + 11) = ctemp12;
	  *(boffset + 12) = ctemp13;
	  *(boffset + 13) = ctemp14;
	  *(boffset + 14) = ctemp15;
	  *(boffset + 15) = ctemp16;

      *(boffset + 16) = ctemp17;
	  *(boffset + 17) = ctemp18;
	  *(boffset + 18) = ctemp19;
	  *(boffset + 19) = ctemp20;
	  *(boffset + 20) = ctemp21;
	  *(boffset + 21) = ctemp22;
	  *(boffset + 22) = ctemp23;
	  *(boffset + 23) = ctemp24;
	  *(boffset + 24) = ctemp25;
	  *(boffset + 25) = ctemp26;
	  *(boffset + 26) = ctemp27;
	  *(boffset + 27) = ctemp28;
	  *(boffset + 28) = ctemp29;
	  *(boffset + 29) = ctemp30;
	  *(boffset + 30) = ctemp31;
	  *(boffset + 31) = ctemp32;

        aoffset1 +=  2;
        aoffset2 +=  2;
        aoffset3 +=  2;
        aoffset4 +=  2;
        aoffset5 +=  2;
        aoffset6 +=  2;
        aoffset7 +=  2;
        aoffset8 +=  2;
        aoffset9  +=  2;
        aoffset10 +=  2;
        aoffset11 +=  2;
        aoffset12 +=  2;
        aoffset13 +=  2;
        aoffset14 +=  2;
        aoffset15 +=  2;
        aoffset16 +=  2;

        boffset   += 32;
	  i --;
	}while(i > 0);
      }
      j--;
    }while(j > 0);
  } /* end of if(j > 0) */

  if (n & 8){
    aoffset1  = aoffset;
      aoffset2  = aoffset1 + lda;
      aoffset3  = aoffset2 + lda;
      aoffset4  = aoffset3 + lda;
      aoffset5  = aoffset4 + lda;
      aoffset6  = aoffset5 + lda;
      aoffset7  = aoffset6 + lda;
      aoffset8  = aoffset7 + lda;
      aoffset += 8 * lda;

      i = m;
      if (i > 0){
	do{
	  ctemp01 = *(aoffset1 +  0);
	  ctemp02 = *(aoffset1 +  1);
	  ctemp03 = *(aoffset2 +  0);
	  ctemp04 = *(aoffset2 +  1);
	  ctemp05 = *(aoffset3 +  0);
	  ctemp06 = *(aoffset3 +  1);
	  ctemp07 = *(aoffset4 +  0);
	  ctemp08 = *(aoffset4 +  1);
	  ctemp09 = *(aoffset5 +  0);
	  ctemp10 = *(aoffset5 +  1);
	  ctemp11 = *(aoffset6 +  0);
	  ctemp12 = *(aoffset6 +  1);
	  ctemp13 = *(aoffset7 +  0);
	  ctemp14 = *(aoffset7 +  1);
	  ctemp15 = *(aoffset8 +  0);
	  ctemp16 = *(aoffset8 +  1);

	  *(boffset +  0) = ctemp01;
	  *(boffset +  1) = ctemp02;
	  *(boffset +  2) = ctemp03;
	  *(boffset +  3) = ctemp04;
	  *(boffset +  4) = ctemp05;
	  *(boffset +  5) = ctemp06;
	  *(boffset +  6) = ctemp07;
	  *(boffset +  7) = ctemp08;
	  *(boffset +  8) = ctemp09;
	  *(boffset +  9) = ctemp10;
	  *(boffset + 10) = ctemp11;
	  *(boffset + 11) = ctemp12;
	  *(boffset + 12) = ctemp13;
	  *(boffset + 13) = ctemp14;
	  *(boffset + 14) = ctemp15;
	  *(boffset + 15) = ctemp16;

	  aoffset1 += 2;
	  aoffset2 += 2;
	  aoffset3 += 2;
	  aoffset4 += 2;
	  aoffset5 += 2;
	  aoffset6 += 2;
	  aoffset7 += 2;
	  aoffset8 += 2;

	  boffset += 16;
	  i --;
	}while(i > 0);
      }
  }

  if (n & 4){
    aoffset1  = aoffset;
    aoffset2  = aoffset1 + lda;
    aoffset3  = aoffset2 + lda;
    aoffset4  = aoffset3 + lda;
    aoffset += 4 * lda;

    i = m;
    if (i > 0){
      do{
	ctemp01 = *(aoffset1 +  0);
	ctemp02 = *(aoffset1 +  1);
	ctemp03 = *(aoffset2 +  0);
	ctemp04 = *(aoffset2 +  1);
	ctemp05 = *(aoffset3 +  0);
	ctemp06 = *(aoffset3 +  1);
	ctemp07 = *(aoffset4 +  0);
	ctemp08 = *(aoffset4 +  1);

	*(boffset +  0) = ctemp01;
	*(boffset +  1) = ctemp02;
	*(boffset +  2) = ctemp03;
	*(boffset +  3) = ctemp04;
	*(boffset +  4) = ctemp05;
	*(boffset +  5) = ctemp06;
	*(boffset +  6) = ctemp07;
	*(boffset +  7) = ctemp08;

	aoffset1 += 2;
	aoffset2 += 2;
	aoffset3 += 2;
	aoffset4 += 2;

	boffset += 8;
	i --;
      }while(i > 0);
    }
  } /* end of if(j > 0) */

  if (n & 2){
    aoffset1  = aoffset;
    aoffset2  = aoffset1 + lda;
    aoffset += 2 * lda;

    i = m;
    if (i > 0){
      do{
	ctemp01 = *(aoffset1 +  0);
	ctemp02 = *(aoffset1 +  1);
	ctemp03 = *(aoffset2 +  0);
	ctemp04 = *(aoffset2 +  1);

	*(boffset +  0) = ctemp01;
	*(boffset +  1) = ctemp02;
	*(boffset +  2) = ctemp03;
	*(boffset +  3) = ctemp04;

	aoffset1 +=  2;
	aoffset2 +=  2;
	boffset  +=  4;
	i --;
      }while(i > 0);
    }

  } /* end of if(j > 0) */

  if (n & 1){
    aoffset1  = aoffset;

    i = m;
    if (i > 0){
      do{
	ctemp01 = *(aoffset1 +  0);
	ctemp02 = *(aoffset1 +  1);

	*(boffset +  0) = ctemp01;
	*(boffset +  1) = ctemp02;

	aoffset1 += 2;
	boffset  += 2;
	i --;
      }while(i > 0);
    }

  } /* end of if(j > 0) */

  return 0;
}