https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77433
--- Comment #6 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- (In reply to Manuel López-Ibáñez from comment #5) > (In reply to Andrew Pinski from comment #2) > > This needs data flow to see if b usage cross over the clobber or not. > > I think the simpler case can be warned in the FE. I cannot imagine a correct > use of assigning a pointer from an inner scope to a variable in the outer > scope. Even if the pointer is never used, there is not reason to do that. Actually, forget that. It is obvious this can happen indeed in correct code. Not sure what I was thinking.
