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H A Dbufferiszero.cdiff 083d012a388e7e2a8bfd9144c2c9bcceb29a78fc Mon Aug 29 13:46:17 CDT 2016 Richard Henderson <rth@twiddle.net> cutils: Add generic prefetch

There's no real knowledge of the cacheline size,
just prefetching one loop ahead.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1472496380-19706-7-git-send-email-rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>