gcc/gcc ChangeLog.tree-ssa tree-dfa.c tree-flo ...

[law@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	tree-ssa-20020619-branch
Changes by:	law@gcc.gnu.org	2003-02-03 23:56:25

Modified files:
	gcc            : ChangeLog.tree-ssa tree-dfa.c tree-flow.h 
	                 tree-ssa.c 

Log message:
	* tree-dfa.c (add_referenced_var): Annotate each item in the
	REFERENCED_VARS varray with a unique id.
	* tree-flow.h (struct var_ann_d): Add new uid field.
	* tree-ssa.c (mark_def_sites): Compute the set of variables
	live across basic blocks and return them in an sbitmap.
	(insert_phi_nodes): Use the set of nonlocal variables computed
	by mark_def_sites to reduce the number of PHI nodes inserted.
	(rewrite_into_ssa): Updated to deal with changes in
	insert_phi_nodes and mark_def_sites.  Free the sbitmap returned
	by mark_def_sites.

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=1.1.2.211&r2=1.1.2.212
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-dfa.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.69&r2=1.1.4.70
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.48&r2=1.1.4.49
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.45&r2=1.1.4.46