Hi Richard, On 3/15/23 15:52, Richard Biener wrote: > On Wed, Mar 15, 2023 at 3:30 PM Alejandro Colomar via Gcc-patches > <gcc-patches@gcc.gnu.org> wrote: >> >> Ping > > -Wuse-after-free=3 was explicitly added to cover cases with a high > false-positive rate. If you want to > make that the default then instead merge the equality compare case > back to the =2 case. > > But as I said elsewhere I think that -Wuse-after-free is very much too > trigger happy, especially > with value-uses (not accessing released memory but inspecting the old > pointer value). Please consider > looking at https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104075 and > review the false positives > reported. > > Also see my very recent patches from today trying to limit > -Wuse-after-free by not diagnosing > from late IL.
Hmmm, thanks, didn't know about those. Please ignore my patch. Cheers, Alex -- <http://www.alejandro-colomar.es/> GPG key fingerprint: A9348594CE31283A826FBDD8D57633D441E25BB5
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