Issue 4753: Faster opcode dispatch on gcc - Python trackerRingding, aimacintyre, ajaksu2, akuchling, bboissin, belopolsky, blaisorblade, christian.heimes, collinwinter, db3l, djc, facundobatista, ggenellina, gregory.p.smith, jab, jcea, jyasskin, kevinwatters, lemburg, mdionisio, ned.deily, parasa, pitrou, python-dev, r.david.murray, ralph.corderoy, rbcollins, rhettinger, spiv, theatrus, willp
