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use dummy2 as Inf/NAN handling flag

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This commit is contained in:
Martin Kroeker
2025-06-12 13:33:56 -07:00
committed by GitHub
parent ca1ce84ee5
commit 73af02b89f
1 changed files with 40 additions and 49 deletions
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89
kernel/riscv64/zscal.c
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@@ -27,65 +27,56 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/**************************************************************************************
* 2013/09/14 Saar
* BLASTEST float : OK
* BLASTEST double : OK
* CTEST : OK
* TEST : OK
* BLASTEST float : OK
* BLASTEST double : OK
* CTEST : OK
* TEST : OK
*
**************************************************************************************/
#include "common.h"
// The c/zscal_k function is called not only by cblas_c/zscal but also by other upper-level interfaces.
// In certain cases, the expected return values for cblas_s/zscal differ from those of other upper-level interfaces.
// To handle this, we use the dummy2 parameter to differentiate between them.
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)
{
BLASLONG i=0;
BLASLONG inc_x2;
BLASLONG ip = 0;
FLOAT temp;
BLASLONG i = 0;
BLASLONG inc_x2;
BLASLONG ip = 0;
FLOAT temp;
if ( (n <= 0) || (inc_x <= 0))
return(0);
if ((n <= 0) || (inc_x <= 0))
return(0);
inc_x2 = 2 * inc_x;
if (dummy2 == 0) {
for (i = 0; i < n; i++)
{
if (da_r == 0.0 && da_i == 0.0)
{
x[ip] = 0.0;
x[ip+1] = 0.0;
}
else
{
temp = da_r * x[ip] - da_i * x[ip+1];
x[ip+1] = da_r * x[ip+1] + da_i * x[ip] ;
x[ip] = temp;
}
inc_x2 = 2 * inc_x;
for ( i=0; i<n; i++ )
{
if ( da_r == 0.0 )
{
if ( da_i == 0.0 )
{
temp = 0.0;
x[ip+1] = 0.0 ;
}
else
{
temp = - da_i * x[ip+1] ;
if (isnan(x[ip]) || isinf(x[ip])) temp = NAN;
if (!isinf(x[ip+1]))
x[ip+1] = da_i * x[ip] ;
else x[ip+1] = NAN;
}
}
else
{
if ( da_i == 0.0 )
{
temp = da_r * x[ip] ;
x[ip+1] = da_r * x[ip+1];
}
else
{
temp = da_r * x[ip] - da_i * x[ip+1] ;
x[ip+1] = da_r * x[ip+1] + da_i * x[ip] ;
}
}
x[ip] = temp;
ip += inc_x2;
}
return(0);
}
for (i = 0; i < n; i++)
{
temp = da_r * x[ip] - da_i * x[ip+1];
x[ip+1] = da_r * x[ip+1] + da_i * x[ip] ;
ip += inc_x2;
}
return(0);
x[ip] = temp;
ip += inc_x2;
}
return(0);
}