------- Comment #31 from rguenth at gcc dot gnu dot org 2007-06-05 12:05 ------- The problem in this PR is, that the structure we mess up points-to info has no fields in its lower half, but only two varinfos (D.2860, offset 128 size 64 and D.2860.visited_, offset 192 size 64 -- the first one is actually D.2860.func_ptr_, but we name the first after the decl always). Now, there _is_ a structure at offset zero, D.2857 (size 192), which contains D.2860.func_ptr_.
So we fail to have a varinfo for the offset the expression &D.2860.D.2857 points to and we loose the first varinfo wrongly during the &this_18->functor_ addition of 64. Now, either we need to generate fake varinfos for the 'holes' we end up with, or just punt here. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30252
