217 lines
6.4 KiB
C
217 lines
6.4 KiB
C
/*********************************************************************/
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/* Copyright 2009, 2010 The University of Texas at Austin. */
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/* All rights reserved. */
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/* */
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/* Redistribution and use in source and binary forms, with or */
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/* without modification, are permitted provided that the following */
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/* conditions are met: */
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/* */
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/* 1. Redistributions of source code must retain the above */
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/* copyright notice, this list of conditions and the following */
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/* disclaimer. */
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/* */
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/* 2. Redistributions in binary form must reproduce the above */
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/* copyright notice, this list of conditions and the following */
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/* disclaimer in the documentation and/or other materials */
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/* provided with the distribution. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
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/* AUSTIN ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, */
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/* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
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/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
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/* DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS AT */
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/* AUSTIN OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, */
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/* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */
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/* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE */
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/* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR */
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/* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
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/* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
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/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT */
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/* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE */
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/* POSSIBILITY OF SUCH DAMAGE. */
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/* */
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/* The views and conclusions contained in the software and */
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/* documentation are those of the authors and should not be */
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/* interpreted as representing official policies, either expressed */
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/* or implied, of The University of Texas at Austin. */
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/*********************************************************************/
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#include <stdio.h>
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#include "common.h"
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#ifndef USE_ALPHA
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#define REAL_PART(a, b) (a)
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#define IMAGE_PART(a, b) (b)
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#else
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#define REAL_PART(a, b) (alpha_r * (a) - alpha_i * (b))
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#define IMAGE_PART(a, b) (alpha_i * (a) + alpha_r * (b))
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#endif
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#if defined(REAL_ONLY)
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#define CMULT(a, b) (REAL_PART(a, b))
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#elif defined(IMAGE_ONLY)
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#define CMULT(a, b) (IMAGE_PART(a, b))
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#else
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#define CMULT(a, b) (REAL_PART(a, b) + IMAGE_PART(a, b))
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#endif
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int CNAME(BLASLONG m, BLASLONG n, FLOAT *a, BLASLONG lda,
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#ifdef USE_ALPHA
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FLOAT alpha_r, FLOAT alpha_i,
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#endif
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FLOAT *b){
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BLASLONG i, j;
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FLOAT *a_offset, *a_offset1, *a_offset2, *a_offset3, *a_offset4;
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FLOAT *a_offset5, *a_offset6, *a_offset7, *a_offset8;
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FLOAT *b_offset;
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FLOAT a1, a2, a3, a4, a5, a6, a7, a8;
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FLOAT a9, a10, a11, a12, a13, a14, a15, a16;
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#if 0
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#ifdef REAL_ONLY
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fprintf(stderr, "NON Real ");
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#elif defined(IMAGE_ONLY)
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fprintf(stderr, "NON Image ");
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#else
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fprintf(stderr, "NON Both ");
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#endif
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#ifdef ICOPY
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fprintf(stderr, " ICOPY %ld x %ld\n", m, n);
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#else
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fprintf(stderr, " OCOPY %ld x %ld\n", m, n);
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#endif
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#endif
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lda *= 2;
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a_offset = a;
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b_offset = b;
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j = (n >> 3);
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if (j > 0){
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do{
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a_offset1 = a_offset;
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a_offset2 = a_offset1 + lda;
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a_offset3 = a_offset2 + lda;
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a_offset4 = a_offset3 + lda;
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a_offset5 = a_offset4 + lda;
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a_offset6 = a_offset5 + lda;
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a_offset7 = a_offset6 + lda;
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a_offset8 = a_offset7 + lda;
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a_offset += 8 * lda;
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for (i = 0; i < m; i ++) {
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a1 = *(a_offset1 + 0);
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a2 = *(a_offset1 + 1);
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a3 = *(a_offset2 + 0);
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a4 = *(a_offset2 + 1);
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a5 = *(a_offset3 + 0);
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a6 = *(a_offset3 + 1);
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a7 = *(a_offset4 + 0);
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a8 = *(a_offset4 + 1);
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a9 = *(a_offset5 + 0);
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a10 = *(a_offset5 + 1);
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a11 = *(a_offset6 + 0);
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a12 = *(a_offset6 + 1);
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a13 = *(a_offset7 + 0);
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a14 = *(a_offset7 + 1);
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a15 = *(a_offset8 + 0);
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a16 = *(a_offset8 + 1);
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*(b_offset + 0) = CMULT(a1, a2);
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*(b_offset + 1) = CMULT(a3, a4);
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*(b_offset + 2) = CMULT(a5, a6);
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*(b_offset + 3) = CMULT(a7, a8);
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*(b_offset + 4) = CMULT(a9, a10);
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*(b_offset + 5) = CMULT(a11, a12);
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*(b_offset + 6) = CMULT(a13, a14);
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*(b_offset + 7) = CMULT(a15, a16);
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a_offset1 += 2;
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a_offset2 += 2;
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a_offset3 += 2;
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a_offset4 += 2;
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a_offset5 += 2;
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a_offset6 += 2;
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a_offset7 += 2;
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a_offset8 += 2;
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b_offset += 8;
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}
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j--;
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}while(j > 0);
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}
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if (n & 4){
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a_offset1 = a_offset;
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a_offset2 = a_offset1 + lda;
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a_offset3 = a_offset2 + lda;
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a_offset4 = a_offset3 + lda;
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a_offset += 4 * lda;
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for (i = 0; i < m; i ++) {
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a1 = *(a_offset1 + 0);
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a2 = *(a_offset1 + 1);
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a3 = *(a_offset2 + 0);
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a4 = *(a_offset2 + 1);
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a5 = *(a_offset3 + 0);
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a6 = *(a_offset3 + 1);
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a7 = *(a_offset4 + 0);
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a8 = *(a_offset4 + 1);
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*(b_offset + 0) = CMULT(a1, a2);
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*(b_offset + 1) = CMULT(a3, a4);
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*(b_offset + 2) = CMULT(a5, a6);
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*(b_offset + 3) = CMULT(a7, a8);
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a_offset1 += 2;
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a_offset2 += 2;
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a_offset3 += 2;
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a_offset4 += 2;
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b_offset += 4;
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}
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}
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if (n & 2){
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a_offset1 = a_offset;
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a_offset2 = a_offset1 + lda;
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a_offset += 2 * lda;
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for (i = 0; i < m; i ++) {
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a1 = *(a_offset1 + 0);
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a2 = *(a_offset1 + 1);
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a3 = *(a_offset2 + 0);
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a4 = *(a_offset2 + 1);
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*(b_offset + 0) = CMULT(a1, a2);
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*(b_offset + 1) = CMULT(a3, a4);
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a_offset1 += 2;
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a_offset2 += 2;
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b_offset += 2;
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}
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}
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if (n & 1){
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a_offset1 = a_offset;
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for (i = 0; i < m; i ++) {
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a1 = *(a_offset1 + 0);
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a2 = *(a_offset1 + 1);
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*(b_offset + 0) = CMULT(a1, a2);
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a_offset1 += 2;
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b_offset += 1;
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}
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}
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return 0;
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}
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