[Bug libstdc++/86013] std::vector::shrink_to_fit() could sometimes use realloc()

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86013

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Keywords|                            |missed-optimization

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
I wonder if technically shrink_to_fit() is allowed to elide the shrinking?  And
yes, I'm equally shocked about the need to copy!