In reply to @venkataregalla05 "I am a new": I know you have been told "yes",
and I'm going to get some hate about this, but...
in reality? In the real world? No, it doesn't

The severe shortcomings of the gc:none toolchain become extremely obvious and
apparent as soon as you start using gcnone daily for just a single month
You spend 30% or more of your time trying to stop the compiler from leaking
stuff on you, when all of those features should literally be disabled when you
asked for gcnone in the first place