https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26388
--- Comment #11 from Marc Glisse <glisse at gcc dot gnu.org> --- (In reply to Martin Sebor from comment #10) > The implementation challenges aside, I think the transformation suggested > here could break some valid (if rare) C++ programs. std::vector is > specified to use std::allocator to obtain storage which in turn is specified > to use operator new. Operator new is a replaceable function meaning that a > program can define its own that keeps track of the number of calls to it by > vector (and other) member functions. Such programs could break by GCC > eliminating the of the operator. > > Richard, in light of this and other concerns in the discussion of this bug, > do you want to keep this bug open or do you agree with closing it? LLVM developers got the C++ standard fixed so that this is explicitly permitted...