gcc/gcc ChangeLog.tree-ssa tree-ssa-ccp.c

[law@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	tree-ssa-20020619-branch
Changes by:	law@gcc.gnu.org	2003-02-25 18:49:44

Modified files:
	gcc            : ChangeLog.tree-ssa tree-ssa-ccp.c 

Log message:
	* tree-ssa-ccp.c (likely_value): Renamed from may_fold_p.  Now
	returns a latticevalue indicating the likely value for the
	the RHS of the statement.
	(evaluate_stmt): Update to use likely_value instead of may_fold_p.
	Statements with UNDEFINED operands produce an UNDEFINED result.
	(set_lattice_value): Reenable VARYING->CONSTANT sanity check.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.tree-ssa.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.245&r2=1.1.2.246
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-ccp.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.55&r2=1.1.2.56