Well, still much better than sdcc, which often fails to optimize array accesses on certain targets. And just recently I took acr-gcc down the - O3 -flto rabbit

Well, still much better than sdcc, which often fails to optimize array accesses on certain targets. And just recently I took acr-gcc down the - O3 -flto rabbit hole, and everything survived, and with the huge size win, I could add plenty of new functionality and checks.