https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81165
Alexandre Oliva <aoliva at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |aoliva at gcc dot gnu.org
--- Comment #4 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
Bisect revealed the patch for bug 80237 caused this regression. The extra
argument passed to find_leader_in_sets ends up providing us with a leader where
before the patch we wouldn't have one, and this ultimately happens to stop us
from optimizing out the entire loop.
