While conditionalized on SSE2, it's a "portable" gcc generic vector
implementation, which could be enabled on other hosts.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

This form produces significantly smaller code on x86_64.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

We need to write the result to the destination register before
raising any exception.  Thus inline the code for each insn, and
check for any exception after we're done.
Reported-by: NAl Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Rather than include helper.h with N values of GEN_HELPER, include a
secondary file that sets up the macros to include helper.h.  This
minimizes the files that must be rebuilt when changing the macros
for file N.
Reviewed-by: NAlex Bennée <alex.bennee@linaro.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>