alt Hacker News> many, if not the vast majority, of aarch64 TBZ/TBNZ are probably branching on a boolean
None are. There is CBZ/CBNZ for that. https://www.scs.stanford.edu/~zyedidia/arm64/cbnz.html
It is just THAT useful to branch in a bit.
> many, if not the vast majority, of aarch64 TBZ/TBNZ are probably branching on a boolean
None are. There is CBZ/CBNZ for that. https://www.scs.stanford.edu/~zyedidia/arm64/cbnz.html
It is just THAT useful to branch in a bit.
Both clang and gcc do actually generate TBZ/TBNZ for checking a bool: https://godbolt.org/z/K6evhaxGT