This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: -funsafe-loop-optimizations


Hello,

> Is it maybe possible in some cases to look at how the induction
> variable is used (e.g. as an array index and we know that it is
> undefined to have an index outside the array domain), and decide
> on whether the loop must be finite or not based on that?

we do this on tree level.

Zdenek


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]