OpenBLAS/kernel/generic/gemm_beta.c

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#include "common.h"

int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT beta,
	  IFLOAT *dummy2, BLASLONG dummy3, IFLOAT *dummy4, BLASLONG dummy5,
	  FLOAT *c, BLASLONG ldc){


  BLASLONG i, j;
  BLASLONG chunk, remain;
  FLOAT *c_offset1, *c_offset;
  c_offset = c;
  chunk = m >> 3;
  remain = m & 7;
  if (beta == ZERO){
	  for(j=n; j>0; j--){
		c_offset1 = c_offset;
		c_offset += ldc;
		for(i=chunk; i>0; i--){
			*(c_offset1 + 0) = ZERO;
			*(c_offset1 + 1) = ZERO;
			*(c_offset1 + 2) = ZERO;
			*(c_offset1 + 3) = ZERO;
			*(c_offset1 + 4) = ZERO;
			*(c_offset1 + 5) = ZERO;
			*(c_offset1 + 6) = ZERO;
			*(c_offset1 + 7) = ZERO;
			c_offset1 += 8;
		}
		for(i=remain; i>0; i--){
			*c_offset1 = ZERO;
			c_offset1 ++;
		}
	  }
  } else {
	  for(j=n; j>0; j--){
		c_offset1 = c_offset;
		c_offset += ldc;
		for(i=chunk; i>0; i--){
			*(c_offset1 + 0) *= beta;
			*(c_offset1 + 1) *= beta;
			*(c_offset1 + 2) *= beta;
			*(c_offset1 + 3) *= beta;
			*(c_offset1 + 4) *= beta;
			*(c_offset1 + 5) *= beta;
			*(c_offset1 + 6) *= beta;
			*(c_offset1 + 7) *= beta;
			c_offset1 += 8;
		}
		for(i=remain; i>0; i--){
			*c_offset1 *= beta;
			c_offset1 ++;
		}
	  }
  }
  return 0;
};