https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96247
--- Comment #2 from hujp <hujiangping at cn dot fujitsu.com> --- (In reply to Richard Biener from comment #1) > not sure if that's sensible or if instead zero should be rejected. Note > x86_64 behaves the same so it's probably better to adjust the documentation > to reflect the implementation behavior. Thanks, Richard. Yes, I confirmed that x86_64 have the same problem in the source level. >From the point of view of the function of the option, it is meaningless to align with 0, so for -falign-function=0, - either has a special meaning, that is, use the default value (that is, the document now says), - or should be rejected. I prefer the latter, if that don't need to modify the target code (for now, I haven't confirmed the relevant code). It means that both the code and the documentation need to be modified a bit. On the other hand, just adjusting the documentation to reflect the implementation behavior will cause -falign-functions=0 and -falign-functions=1 to have the same meaning, which is a bit confusing from the user's perspective. What do you think?
