[Bug tree-optimization/107561] [13 Regression] g++.dg/pr17488.C and [g++.dg/warn/Warray-bounds-16.C -m32] regression due to -Wstringop-overflow problem

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107561

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
This probably boils down to the object size machinery ignoring [0, 0] (aka not
picking a convex hull of the range).  The range implementation of all these
passes should be using irange<> (but with wide_ints, not trees) instead of
doing their own thing.