[Bug tree-optimization/104276] memset is not elimited when followed by a store loop writing to that memory location

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104276

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
DSE could in theory prune live-bytes from a store inside a loop by looking at
SCEV / niter info.  That'll cost though, and it's not clear where it would
nicely fit.