> If you don't believe that, look at this: The followups cite Agner's tables to show that push and pop are slower. Reg/mem move has reciprocal throughput 0.5 o

> If you don't believe that, look at this: The followups cite Agner's tables to show that push and pop are slower. Reg/mem move has reciprocal throughput 0.5 on Haswell, while pop has 1. It's a code size win, but not really a speed win.