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Fix _Float16 casting issue and reduce LMUL for certain vector instruction from m2 to m1. #5451

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Merged
merged 1 commit into from
Sep 20, 2025
Merged

Fix _Float16 casting issue and reduce LMUL for certain vector instruction from m2 to m1. #5451

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92 changes: 46 additions & 46 deletions kernel/riscv64/shgemm_kernel_16x8_zvl256b.c
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Original file line number Diff line number Diff line change
Expand Up @@ -295,22 +295,22 @@ int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, FLOAT alpha, IFLOAT *A, IFLOAT *B,
BLASLONG bi = n_top * K;

for(BLASLONG k=0; k<K; k++) {
result0+=(float)(A[ai+0]*B[bi+0]);
result1+=(float)(A[ai+1]*B[bi+0]);
result2+=(float)(A[ai+0]*B[bi+1]);
result3+=(float)(A[ai+1]*B[bi+1]);
result4+=(float)(A[ai+0]*B[bi+2]);
result5+=(float)(A[ai+1]*B[bi+2]);
result6+=(float)(A[ai+0]*B[bi+3]);
result7+=(float)(A[ai+1]*B[bi+3]);
result8+=(float)(A[ai+0]*B[bi+4]);
result9+=(float)(A[ai+1]*B[bi+4]);
result10+=(float)(A[ai+0]*B[bi+5]);
result11+=(float)(A[ai+1]*B[bi+5]);
result12+=(float)(A[ai+0]*B[bi+6]);
result13+=(float)(A[ai+1]*B[bi+6]);
result14+=(float)(A[ai+0]*B[bi+7]);
result15+=(float)(A[ai+1]*B[bi+7]);
result0+=(float)(A[ai+0])*(float)(B[bi+0]);
result1+=(float)(A[ai+1])*(float)(B[bi+0]);
result2+=(float)(A[ai+0])*(float)(B[bi+1]);
result3+=(float)(A[ai+1])*(float)(B[bi+1]);
result4+=(float)(A[ai+0])*(float)(B[bi+2]);
result5+=(float)(A[ai+1])*(float)(B[bi+2]);
result6+=(float)(A[ai+0])*(float)(B[bi+3]);
result7+=(float)(A[ai+1])*(float)(B[bi+3]);
result8+=(float)(A[ai+0])*(float)(B[bi+4]);
result9+=(float)(A[ai+1])*(float)(B[bi+4]);
result10+=(float)(A[ai+0])*(float)(B[bi+5]);
result11+=(float)(A[ai+1])*(float)(B[bi+5]);
result12+=(float)(A[ai+0])*(float)(B[bi+6]);
result13+=(float)(A[ai+1])*(float)(B[bi+6]);
result14+=(float)(A[ai+0])*(float)(B[bi+7]);
result15+=(float)(A[ai+1])*(float)(B[bi+7]);
ai+=2;
bi+=8;
}
Expand Down Expand Up @@ -353,14 +353,14 @@ int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, FLOAT alpha, IFLOAT *A, IFLOAT *B,
BLASLONG bi = n_top * K;

for(BLASLONG k=0; k<K; k++) {
result0+=(float)(A[ai+0]*B[bi+0]);
result1+=(float)(A[ai+0]*B[bi+1]);
result2+=(float)(A[ai+0]*B[bi+2]);
result3+=(float)(A[ai+0]*B[bi+3]);
result4+=(float)(A[ai+0]*B[bi+4]);
result5+=(float)(A[ai+0]*B[bi+5]);
result6+=(float)(A[ai+0]*B[bi+6]);
result7+=(float)(A[ai+0]*B[bi+7]);
result0+=(float)(A[ai+0])*(float)(B[bi+0]);
result1+=(float)(A[ai+0])*(float)(B[bi+1]);
result2+=(float)(A[ai+0])*(float)(B[bi+2]);
result3+=(float)(A[ai+0])*(float)(B[bi+3]);
result4+=(float)(A[ai+0])*(float)(B[bi+4]);
result5+=(float)(A[ai+0])*(float)(B[bi+5]);
result6+=(float)(A[ai+0])*(float)(B[bi+6]);
result7+=(float)(A[ai+0])*(float)(B[bi+7]);
ai+=1;
bi+=8;
}
Expand Down Expand Up @@ -569,14 +569,14 @@ int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, FLOAT alpha, IFLOAT *A, IFLOAT *B,
BLASLONG bi = n_top * K;

for(BLASLONG k=0; k<K; k++) {
result0+=(float)(A[ai+0]*B[bi+0]);
result1+=(float)(A[ai+1]*B[bi+0]);
result2+=(float)(A[ai+0]*B[bi+1]);
result3+=(float)(A[ai+1]*B[bi+1]);
result4+=(float)(A[ai+0]*B[bi+2]);
result5+=(float)(A[ai+1]*B[bi+2]);
result6+=(float)(A[ai+0]*B[bi+3]);
result7+=(float)(A[ai+1]*B[bi+3]);
result0+=(float)(A[ai+0])*(float)(B[bi+0]);
result1+=(float)(A[ai+1])*(float)(B[bi+0]);
result2+=(float)(A[ai+0])*(float)(B[bi+1]);
result3+=(float)(A[ai+1])*(float)(B[bi+1]);
result4+=(float)(A[ai+0])*(float)(B[bi+2]);
result5+=(float)(A[ai+1])*(float)(B[bi+2]);
result6+=(float)(A[ai+0])*(float)(B[bi+3]);
result7+=(float)(A[ai+1])*(float)(B[bi+3]);
ai+=2;
bi+=4;
}
Expand Down Expand Up @@ -607,10 +607,10 @@ int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, FLOAT alpha, IFLOAT *A, IFLOAT *B,
BLASLONG bi = n_top * K;

for(BLASLONG k=0; k<K; k++) {
result0+=(float)(A[ai+0]*B[bi+0]);
result1+=(float)(A[ai+0]*B[bi+1]);
result2+=(float)(A[ai+0]*B[bi+2]);
result3+=(float)(A[ai+0]*B[bi+3]);
result0+=(float)(A[ai+0])*(float)(B[bi+0]);
result1+=(float)(A[ai+0])*(float)(B[bi+1]);
result2+=(float)(A[ai+0])*(float)(B[bi+2]);
result3+=(float)(A[ai+0])*(float)(B[bi+3]);
ai+=1;
bi+=4;
}
Expand Down Expand Up @@ -770,10 +770,10 @@ int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, FLOAT alpha, IFLOAT *A, IFLOAT *B,
BLASLONG bi = n_top * K;

for(BLASLONG k=0; k<K; k++) {
result0+=(float)(A[ai+0]*B[bi+0]);
result1+=(float)(A[ai+1]*B[bi+0]);
result2+=(float)(A[ai+0]*B[bi+1]);
result3+=(float)(A[ai+1]*B[bi+1]);
result0+=(float)(A[ai+0])*(float)(B[bi+0]);
result1+=(float)(A[ai+1])*(float)(B[bi+0]);
result2+=(float)(A[ai+0])*(float)(B[bi+1]);
result3+=(float)(A[ai+1])*(float)(B[bi+1]);
ai+=2;
bi+=2;
}
Expand All @@ -797,8 +797,8 @@ int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, FLOAT alpha, IFLOAT *A, IFLOAT *B,
BLASLONG bi = n_top * K;

for(BLASLONG k=0; k<K; k++) {
result0+=(float)(A[ai+0]*B[bi+0]);
result1+=(float)(A[ai+0]*B[bi+1]);
result0+=(float)(A[ai+0])*(float)(B[bi+0]);
result1+=(float)(A[ai+0])*(float)(B[bi+1]);
ai+=1;
bi+=2;
}
Expand Down Expand Up @@ -930,8 +930,8 @@ int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, FLOAT alpha, IFLOAT *A, IFLOAT *B,
BLASLONG bi = n_top * K;

for(BLASLONG k=0; k<K; k++) {
result0+=(float)(A[ai+0]*B[bi+0]);
result1+=(float)(A[ai+1]*B[bi+0]);
result0+=(float)(A[ai+0])*(float)(B[bi+0]);
result1+=(float)(A[ai+1])*(float)(B[bi+0]);
ai+=2;
bi+=1;
}
Expand All @@ -953,7 +953,7 @@ int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, FLOAT alpha, IFLOAT *A, IFLOAT *B,
BLASLONG bi = n_top * K;

for(BLASLONG k=0; k<K; k++) {
result0+=(float)(A[ai+0]*B[bi+0]);
result0+=(float)(A[ai+0])*(float)(B[bi+0]);
ai+=1;
bi+=1;
}
Expand All @@ -966,4 +966,4 @@ int CNAME(BLASLONG M, BLASLONG N, BLASLONG K, FLOAT alpha, IFLOAT *A, IFLOAT *B,
n_top += 1;
}
return 0;
}
}
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