r116190 - in /trunk/gcc: ChangeLog basic-block....

[rakdver@gcc.gnu.org]

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