Displaying 2 results from an estimated 2 matches for "_pb_nl".
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_pb_ni
2018 Mar 14
2
LLVM opt unable to vectorize PolyBench code
...,
I m unable to vectorize following kernel by opt tool;
for (i = 0; i < _PB_NI; i++)
for (j = 0; j < _PB_NJ; j++)
{
tmp[i][j] = 0;
for (k = 0; k < _PB_NK; ++k)
tmp[i][j] += alpha * A[i][k] * B[k][j];
}
for (i = 0; i < _PB_NI; i++)
for (j = 0; j < _PB_NL; j++)
{
D[i][j] *= beta;
for (k = 0; k < _PB_NJ; ++k)
D[i][j] += tmp[i][k] * C[k][j];
}
i m using following command
$opt -S -O3 -force-vector-width=64 -pass-remarks=loop-vectorize
-enable-load-pre=0 2mm.ll -o 2mm-64_o3.ll
what is wrong here? what should i do?
Please...
2018 Mar 14
0
LLVM opt unable to vectorize PolyBench code
...t tool;
>
> for (i = 0; i < _PB_NI; i++)
> for (j = 0; j < _PB_NJ; j++)
> {
> tmp[i][j] = 0;
> for (k = 0; k < _PB_NK; ++k)
> tmp[i][j] += alpha * A[i][k] * B[k][j];
> }
> for (i = 0; i < _PB_NI; i++)
> for (j = 0; j < _PB_NL; j++)
> {
> D[i][j] *= beta;
> for (k = 0; k < _PB_NJ; ++k)
> D[i][j] += tmp[i][k] * C[k][j];
> }
>
> i m using following command
> $opt -S -O3 -force-vector-width=64 -pass-remarks=loop-vectorize
> -enable-load-pre=0 2mm.ll -o 2mm-64_o3.ll
&g...