gcc/gcc ChangeLog tree-cfg.c tree-flow.h tree- ...

[rakdver@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rakdver@gcc.gnu.org	2005-05-17 19:55:56

Modified files:
	gcc            : ChangeLog tree-cfg.c tree-flow.h tree-ssa-ccp.c 
	                 tree-ssa-dom.c 

Log message:
	* tree-cfg.c (tree_can_merge_blocks_p): Allow phi nodes in the
	merged block.
	(replace_uses_by): New function.
	(tree_merge_blocks): Eliminate the phi nodes in the merged block.
	* tree-flow.h (fold_stmt_inplace): Declare.
	* tree-ssa-ccp.c (fold_stmt_inplace): New function.
	* tree-ssa-dom.c (tree_ssa_dominator_optimize): Update dominance
	info after cfg cleanup.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8831&r2=2.8832
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-cfg.c.diff?cvsroot=gcc&r1=2.190&r2=2.191
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&r1=2.106&r2=2.107
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-ccp.c.diff?cvsroot=gcc&r1=2.71&r2=2.72
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-dom.c.diff?cvsroot=gcc&r1=2.111&r2=2.112