------- Comment #5 from vmakarov at redhat dot com 2008-08-27 21:59 ------- The problem occurs when a region and its nested region have more 4000 uncolorable allocnos. In this case splay tree is used to deal with the uncolorable allocnos. Part of uncolorable_allocnos is temporarily stored in an array which is not truncated after region coloring and allocnos in the array are put into the splay tree in its subregion.
The patch solving the problem will be sent soon. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251
