http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48702
--- Comment #24 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-05-25 13:58:20 UTC --- (In reply to comment #22) > Created attachment 24354 [details] > alternative patch for 4.6 > > This is another patch - it avoids creating MEM_REFs for base addresses that > we do not know whether they are always in bounds of the object it points to. > Instead we force the use of TARGET_MEM_REFs there and dumb down the alias > oracle to not assume that base address is within bounds. > > Sounds like the most reasonable solution for 4.6 to me. Requires staging on trunk, there are multiple small fixes that need backporting and one last cleanup (and fix) that I had pending needs to be finished first. But I'll continue in this direction.