On 2/4/19 6:15 AM, Richard Biener wrote: > > When I introduced tree-form bitmaps I forgot to think about GC. > The following drops the chain_prev annotation to make the marker > work for trees. I've also maked the obstack member GTY skip > (and prevent bitmap_obstack from gengtype processing) because > the obstack isn't used for GC allocated bitmaps. > > Bootstrap & regtest running on x86_64-unknown-linux-gnu. > > Richard. > > 2019-02-04 Richard Biener <rguent...@suse.de> > > PR middle-end/89150 > * bitmap.h (struct bitmap_obstack): Do not mark GTY. > (struct bitmap_element): Drop chain_prev so we properly recurse on > the prev member, supporting tree views. > (struct bitmap_head): GTY skip the obstack member. Was there a particular failure mode you observed or was this discovered by inspection.
The reason I ask is my tester is showing occasional failures bootstrapping hppa-linux-gnu with a segfault in ICF. I'd rather not have to dig into it if it can be avoided :-) Bootstrapping hppa via qemu is something like 6 hours... Jeff
