https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90930
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |compile-time-hog
Status|WAITING |NEW
CC| |jakub at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Component|middle-end |tree-optimization
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
A lot of memory is somehow consumed during
Run till exit from #0 reassociate_bb (bb=<basic_block 0x7f20be1668f0 (4)>)
at /space/rguenther/src/svn/trunk2/gcc/tree-ssa-reassoc.c:5944
for example for the function ua_namespace0
I suspect the bitops stuff which looks quadratic, not caching work done
in dominators and eventually producing quite some GC garbage it doesn't
cleanup.
Testcase is too slow to investigate further right now.
