[Bug bootstrap/79198] [7 Regression] r244802 causes out of memory during PGO bootstrap

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79198

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Does ggc_free handle destructors nicely?  ISTR ggc got support for
destructors...