------- Comment #25 from amacleod at redhat dot com 2007-01-10 19:47 ------- There were numerous factors in the mainline speedup of SSA->normal, including a massive rewrite, but there are a couple of big wins that are backportable, and were in fact considered. It was just that they were too late in stage 3 at the time:
I don't remember which one(s) affected this test case the most. live range speedup: http://gcc.gnu.org/ml/gcc-patches/2006-08/msg00895.html TER speedup http://gcc.gnu.org/ml/gcc-patches/2006-08/msg00896.html this one was applied later, and may or may not make any difference whatsoever. I changes the coalesce list from a linked list to a hash table. I seem to recall only one test case it affected. http://gcc.gnu.org/ml/gcc-patches/2006-11/msg01515.html -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26854
