[Bug ipa/116068] [15 Regression] ICE: in bitmap_alloc, at bitmap.cc:785 with -Os -flto -ffat-lto-objects -floop-parallelize-all

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116068

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
No, it uses a counter.  So
bitmap_obstack_initialize (NULL);
bitmap_obstack_initialize (NULL);
...
bitmap_obstack_release (NULL);
bitmap_obstack_release (NULL);
does nothing in the inner calls except for increasing/decreasing the counter,
the actual freeing of the obstack is done only on the last call.