https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119108
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|middle-end |target
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I tried looking into snappy sources but it is not obvious where the slow down
would happen here. Especially for BM_UIOVecSource.
Unless it is also benchmarking the setup part:
```
for (int i = 0; i < kNumEntries; ++i) {
iov[i].iov_base = const_cast<char*>(contents.data()) + used_so_far;
if (used_so_far == contents.size()) {
iov[i].iov_len = 0;
continue;
}
if (i == kNumEntries - 1) {
iov[i].iov_len = contents.size() - used_so_far;
} else {
iov[i].iov_len = contents.size() / kNumEntries;
}
used_so_far += iov[i].iov_len;
}
```
