target/ppc: Move VAVG[SU][BHW] to decodetree and use gvec
Moved the instructions VAVGUB, VAVGUH, VAVGUW, VAVGSB, VAVGSH, VAVGSW,
to decodetree and use gvec with them. For these one the right shift
had to be made before the sum as to avoid an overflow, so add 1 at the
end if any of the entries had 1 in its LSB as to replicate the "+ 1"
before the shift described by the ISA.
vavgub:
rept loop master patch
8 12500 0,02616600 0,00754200 (-71.2%)
25 4000 0,02530000 0,00637700 (-74.8%)
100 1000 0,02604600 0,00790100 (-69.7%)
500 200 0,03189300 0,01838400 (-42.4%)
2500 40 0,06006900 0,06851000 (+14.1%)
8000 12 0,13941000 0,20548500 (+47.4%)
vavguh:
rept loop master patch
8 12500 0,01818200 0,00780600 (-57.1%)
25 4000 0,01789300 0,00641600 (-64.1%)
100 1000 0,01899100 0,00787200 (-58.5%)
500 200 0,02527200 0,01828400 (-27.7%)
2500 40 0,05361800 0,06773000 (+26.3%)
8000 12 0,12886600 0,20291400 (+57.5%)
vavguw:
rept loop master patch
8 12500 0,01423100 0,00776600 (-45.4%)
25 4000 0,01780800 0,00638600 (-64.1%)
100 1000 0,02085500 0,00787000 (-62.3%)
500 200 0,02737100 0,01828800 (-33.2%)
2500 40 0,05572600 0,06774200 (+21.6%)
8000 12 0,13101700 0,20311600 (+55.0%)
vavgsb:
rept loop master patch
8 12500 0,03006000 0,00788600 (-73.8%)
25 4000 0,02882200 0,00637800 (-77.9%)
100 1000 0,02958000 0,00791400 (-73.2%)
500 200 0,03548800 0,01860400 (-47.6%)
2500 40 0,06360000 0,06850800 (+7.7%)
8000 12 0,13816500 0,20550300 (+48.7%)
vavgsh:
rept loop master patch
8 12500 0,01965900 0,00776600 (-60.5%)
25 4000 0,01875400 0,00638700 (-65.9%)
100 1000 0,01952200 0,00786900 (-59.7%)
500 200 0,02562000 0,01760300 (-31.3%)
2500 40 0,05384300 0,06742800 (+25.2%)
8000 12 0,13240800 0,20330000 (+53.5%)
vavgsw:
rept loop master patch
8 12500 0,01407700 0,00775600 (-44.9%)
25 4000 0,01762300 0,00640000 (-63.7%)
100 1000 0,02046500 0,00788500 (-61.5%)
500 200 0,02745600 0,01843000 (-32.9%)
2500 40 0,05375500 0,06820500 (+26.9%)
8000 12 0,13068300 0,20304900 (+55.4%)
These results to me seems to indicate that with gvec the results have a
slower translation but faster execution.
Signed-off-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221019125040.48028-7-lucas.araujo@eldorado.org.br>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
c85929b2dd