Removing unused inlined functions or false constexpr's is trivial to see. We already have -Winline. We care about removed branches, exprs and stmts due to some

Removing unused inlined functions or false constexpr's is trivial to see. We already have -Winline. We care about removed branches, exprs and stmts due to some optimizer logic. I'm talking about the optimizer, not the linker, which thanksfully does a lot of pruning.