On Wed, Nov 11, 2020 at 04:15:59PM +0200, Adrian Ratiu wrote: > On Tue, 10 Nov 2020, Nick Desaulniers <ndesaulni...@google.com> > wrote: > > > > Yes, though additionally Arvind points out that this code is > > kind of curious if there was overlap; maybe the parameters > > should just be restrict-qualified. > > > > For now I think I'll just re-send the GCC changes and leave the > Clang optimization as is, until we better understand what's > happening and what's the best way to enable it. >
Note that the __restrict__ keywords also help GCC -- it saves it from having to emit the non-vectorized version and switch between the two at runtime. If we can verify it's safe, it's a good thing to add all around.
