Honza, The cgraph patch in r211600 broke AIX bootstrap again. I cannot find the corresponding patch in the GCC Patches mailing list, so I do not see where this was discussed or approved.
With the patch in r211600, the "gen*" programs in stage2 go into an endless loop. Please revert these comdat patches. These were not tested appropriately. Please create a branch and we can debug the problems on AIX. Thanks, David