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Move the value assignment of vector x in gemv_n_sve.c to the outermos… #5420

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Merged
martin-frbg merged 1 commit into from
Aug 16, 2025
Merged

Move the value assignment of vector x in gemv_n_sve.c to the outermos… #5420

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18 changes: 6 additions & 12 deletions kernel/arm64/gemv_n_sve.c
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Original file line number Diff line number Diff line change
Expand Up @@ -69,13 +69,12 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
FLOAT *a2_ptr = a + lda * width * 2;

for (j = 0; j < width; j++) {
for (i = 0; (i + sve_size - 1) < m; i += sve_size) {
ix = j * inc_x;

SV_TYPE x0_vec = SV_DUP(alpha * x[ix + (inc_x * width * 0)]);
SV_TYPE x1_vec = SV_DUP(alpha * x[ix + (inc_x * width * 1)]);
SV_TYPE x2_vec = SV_DUP(alpha * x[ix + (inc_x * width * 2)]);
ix = j * inc_x;

SV_TYPE x0_vec = SV_DUP(alpha * x[ix + (inc_x * width * 0)]);
SV_TYPE x1_vec = SV_DUP(alpha * x[ix + (inc_x * width * 1)]);
SV_TYPE x2_vec = SV_DUP(alpha * x[ix + (inc_x * width * 2)]);
for (i = 0; (i + sve_size - 1) < m; i += sve_size) {
SV_TYPE a00_vec = svld1(pg_true, a0_ptr + i);
SV_TYPE a01_vec = svld1(pg_true, a1_ptr + i);
SV_TYPE a02_vec = svld1(pg_true, a2_ptr + i);
Expand All @@ -89,10 +88,6 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
}

if (i < m) {
SV_TYPE x0_vec = SV_DUP(alpha * x[ix + (inc_x * width * 0)]);
SV_TYPE x1_vec = SV_DUP(alpha * x[ix + (inc_x * width * 1)]);
SV_TYPE x2_vec = SV_DUP(alpha * x[ix + (inc_x * width * 2)]);

SV_TYPE a00_vec = svld1(pg, a0_ptr + i);
SV_TYPE a01_vec = svld1(pg, a1_ptr + i);
SV_TYPE a02_vec = svld1(pg, a2_ptr + i);
Expand All @@ -115,17 +110,16 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
a_ptr = a2_ptr;
for (j = width * 3; j < n; j++) {
ix = j * inc_x;
SV_TYPE x_vec = SV_DUP(alpha * x[(ix)]);
for (i = 0; (i + sve_size - 1) < m; i += sve_size) {
SV_TYPE y_vec = svld1(pg_true, y + i);
SV_TYPE x_vec = SV_DUP(alpha * x[(ix)]);
SV_TYPE a_vec = svld1(pg_true, a_ptr + i);
y_vec = svmla_x(pg_true, y_vec, a_vec, x_vec);
svst1(pg_true, y + i, y_vec);
}

if (i < m) {
SV_TYPE y_vec = svld1(pg, y + i);
SV_TYPE x_vec = SV_DUP(alpha * x[(ix)]);
SV_TYPE a_vec = svld1(pg, a_ptr + i);
y_vec = svmla_m(pg, y_vec, a_vec, x_vec);
svst1(pg, y + i, y_vec);
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