On July 20, 2021 5:31:17 PM GMT+02:00, Richard Sandiford via Gcc-patches
wrote:
>unroll and jam can decide to unroll the outer loop of a nest like:
>
> for (int j = 0; j < n; ++j)
>for (int i = 0; i < n; ++i)
> x[i] += __builtin_expf (y[j][i]);
>
>It then uses a tail loop to handle any
unroll and jam can decide to unroll the outer loop of a nest like:
for (int j = 0; j < n; ++j)
for (int i = 0; i < n; ++i)
x[i] += __builtin_expf (y[j][i]);
It then uses a tail loop to handle any left-over iterations.
However, the code is structured so that this tail loop is always
