------- Comment #5 from matz at gcc dot gnu dot org 2010-01-14 16:17 ------- I don't think the big hammer is necessary. trivially_conflicts_p only is a heuristic predicate influencing how other code is emitted. That other code needs to handle them already, otherwise more transformations would be broken. The worst that can happen by ignoring debug stmts in the predicate is that the transformation done later leads to changes or invalidation of those debug statements. I think that's exactly what we want.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42719