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handle INF and NAN in input

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Martin Kroeker 2024-07-30 10:20:26 +02:00 committed by GitHub
parent ee09657cf1
commit 6843ec7732
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GPG Key ID: B5690EEEBB952194
1 changed files with 46 additions and 14 deletions
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44
kernel/zarch/cscal.c
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@ -234,12 +234,23 @@ int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r, FLOAT da_i,
} else { } else {
while (j < n1) { while (j < n1) {
if (isnan(x[i]) || isinf(x[i]))
temp0 = NAN;
else
temp0 = -da_i * x[i + 1]; temp0 = -da_i * x[i + 1];
if (!isinf(x[i + 1]))
x[i + 1] = da_i * x[i]; x[i + 1] = da_i * x[i];
else
x[i + 1] = NAN;
x[i] = temp0; x[i] = temp0;
if (isnan(x[i+inc_x]) || isinf(x[i+inc_x]))
temp1 = NAN;
else
temp1 = -da_i * x[i + 1 + inc_x]; temp1 = -da_i * x[i + 1 + inc_x];
if (!isinf(x[i + 1 + inc_x]))
x[i + 1 + inc_x] = da_i * x[i + inc_x]; x[i + 1 + inc_x] = da_i * x[i + inc_x];
else
x[i + 1 + inc_x] = NAN;
x[i + inc_x] = temp1; x[i + inc_x] = temp1;
i += 2 * inc_x; i += 2 * inc_x;
j += 2; j += 2;
@ -247,8 +258,13 @@ int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r, FLOAT da_i,
} }
while (j < n) { while (j < n) {
if (isnan(x[i]) || isinf(x[i]))
temp0 = NAN;
else
temp0 = -da_i * x[i + 1]; temp0 = -da_i * x[i + 1];
if (isinf(x[i + 1]))
x[i + 1] = NAN;
else
x[i + 1] = da_i * x[i]; x[i + 1] = da_i * x[i];
x[i] = temp0; x[i] = temp0;
i += inc_x; i += inc_x;
@ -332,14 +348,25 @@ int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r, FLOAT da_i,
j = n1; j = n1;
} }
if (da_r == 0.0) { if (da_r == 0.0 || isnan(da_r)) {
if (da_i == 0.0) { if (da_i == 0.0) {
float res = 0.0;
if (isnan(da_r)) res = da_r;
while (j < n) { while (j < n) {
x[i] = 0.0; x[i] = res
x[i + 1] = 0.0; x[i + 1] = res;
i += 2;
j++;
}
} else if (isinf(da_r)) {
while(j < n)
{
x[i]= NAN;
x[i+1] = da_r;
i += 2 ; i += 2 ;
j++; j++;
@ -350,7 +377,12 @@ int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r, FLOAT da_i,
while (j < n) { while (j < n) {
temp0 = -da_i * x[i + 1]; temp0 = -da_i * x[i + 1];
if (isinf(x[i])) temp0 = NAN;
if (!isinf(x[i + 1]))
x[i + 1] = da_i * x[i]; x[i + 1] = da_i * x[i];
else
x[i + 1] = NAN;
if (!isnan(x[i]))
x[i] = temp0; x[i] = temp0;
i += 2; i += 2;
j++; j++;