[Bug middle-end/28071] [4.1/4.2 regression] A file that can not be compiled in reasonable time/space

["rakdver at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #36 from rakdver at gcc dot gnu dot org  2006-08-16 21:25 -------
Subject: Bug 28071

Author: rakdver
Date: Wed Aug 16 21:25:39 2006
New Revision: 116190

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=116190
Log:
        PR rtl-optimization/28071
        * basic-block.h (bb_dom_dfs_in, bb_dom_dfs_out): Declare.
        * dominance.c (bb_dom_dfs_in, bb_dom_dfs_out): New functions.
        * tree-into-ssa.c (struct dom_dfsnum): New.
        (cmp_dfsnum, find_dfsnum_interval, prune_unused_phi_nodes): New
        functions.
        (insert_phi_nodes_for): Use prune_unused_phi_nodes instead of
        compute_global_livein.
        (prepare_block_for_update, prepare_use_sites_for): Mark the uses
        in phi nodes in the correct blocks.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/basic-block.h
    trunk/gcc/dominance.c
    trunk/gcc/tree-into-ssa.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28071