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.
Best, Dominik
dce-new-delete.diff
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