Examples need updating

[riscv-non-isa]

Examples need updating

[zakk0610]

Hi Roger,
Sorry , I forget to update examples to rvv 0.9 include removing vector c operator,
thanks for point out, I will update it soon.

sgemm example is translated from rvv spec example without loop unrolling, you can reference below diagram to understand the code.

Thanks.

[rofirrim]

Hi @zakk0610,

thanks for the prompt answer. Definitely I was mistaken with the sgemm.

Kind regards,

[rofirrim]

Hi @zakk0610,

some extra comments in the hope they're useful.

-void sgemm_golden() {
+void sgemm_golden(void) {
   for (size_t i = 0; i < MLEN; ++i)
     for (size_t j = 0; j < NLEN; ++j)
       for (size_t k = 0; k < KLEN; ++k)
-        c_array[i * NLEN + j] += a_array[i * KLEN + k] * b_array[j + k * NLEN];
+        golden_array[i * NLEN + j] += a_array[i * KLEN + k] * b_array[j + k * NLEN];
 }

 int main() {
   // golden
-  memcpy(golden_array, b_array, OUTPUT_LEN * sizeof(float));
-  sgemm_golden(MLEN, NLEN, KLEN, a_array, KLEN, b_array, NLEN, golden_array, NLEN);
+  sgemm_golden();
   // vector
-  memcpy(c_array, b_array, OUTPUT_LEN * sizeof(float));
   sgemm_vec(MLEN, NLEN, KLEN, a_array, KLEN, b_array, NLEN, c_array, NLEN);

With these changes (along with those of the load/store) this sgemm test passes in our emulator.

Thanks!

[zakk0610]

Thanks @rofirrim!
I fixed them and they can also passed in spike simulator now.

[kito-cheng]

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