https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117246
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #1) > https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Optimize-Options.html#index- > flifetime-dse > > `To preserve stores before the constructor starts (e.g. because your > operator new clears the object storage) but still treat the object as dead > after the destructor, you can use -flifetime-dse=1.` The code is not valid C++ though, so should be fixed instead of disabling optimizations. https://gcc.gnu.org/gcc-6/porting_to.html#flifetime-dse operator new is for allocating memory, not initializing members. A constructor is for initializing members.
