On 11/21/2017 04:14 AM, Dominik Inführ wrote: > Hi, > > this patch tries to extend tree-ssa-dce.c to remove unnecessary > new/delete-pairs (it already does that for malloc/free). Clang does it too > and it seems to be allowed by > http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3664.html. I’ve > bootstrapped/regtested on aarch64-linux and x86_64-linux. Just a note, we've transitioned into stage3 in preparation for the upcoming gcc-8 release in the spring. During stage3 we're addressing bugfixes, not further enhancements (with the exception of enhancements that were posted prior to stage1 close).
So it's unlikely anyone will dig into this right now, unless there's an existing bugzilla around this missed optimization. Just wanted to let you know where things stood so you don't interpret silence as "we don't care". jeff
