3 ms·
Note that GCC at one point did pretty much everything icc did for vectorization (though this is circa 2008 and not sure if folks have kept to date on caring).
by DannyBee 10y ago
Note that GCC at one point did pretty much everything icc did for vectorization (though this is circa 2008 and not sure if folks have kept to date on caring).
There isn't a lot of magic here, it's all just hard work and good cost models.
- jcranmer 10y agohttp://polaris.cs.uiuc.edu/~garzaran/doc/pact11.pdf http://polaris.cs.uiuc.edu/~garzaran/doc/pact11.pdf suggests that gcc is only doing ~50% of what icc is doing for vectorization on TSVC, although the experimental speedups on PACT and MediaBench was fairly close (23% versus 28%).