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

[dnovillo at gcc dot gnu dot org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	tree-ssa-20020619-branch
Changes by:	dnovillo@gcc.gnu.org	2002-09-10 18:13:35

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

Log message:
	* tree-dfa.c (V_PHI_ARG): Remove.  Adjust related constants.
	Update all users.
	(add_ref_to_list_after): Don't allocate memory for the
	node when adding to the beginning or the end of the list.
	(add_phi_arg): Don't call create_ref to add a new argument.
	(debug_phi_args): New function.
	(dump_phi_args): New function.
	(dump_ref): Call it.
	(dump_referenced_vars): Use 'file' instead of 'dump_file'.
	
	* tree-flow.h (V_PHI_ARG): Remove.  Update all users.
	(struct var_ref): Move fields used in distinct
	reference types to other structures.  Update all users.
	(struct var_def): New.
	(struct var_phi): New.
	(struct var_use): New.
	(union tree_ref_d): Add members vdef, vphi, vuse and vphi_arg.
	Update all users.
	(save_chain): Remove.  Update all users.
	(set_save_chain): Remove.  Update all users.
	(marked_with): Remove.  Update all users.
	(mark_def_with): Remove.  Update all users.
	(dump_reaching_defs): Declare.
	(debug_reaching_defs): Declare.
	
	(struct phi_node_arg_d): New structure.
	(phi_node_arg): New type.
	(phi_arg): Change return type to phi_node_arg.
	(imm_reaching_def_edge): Rename to phi_arg_edge.
	(set_imm_reaching_def_edge): Rename to set_phi_arg_edge.
	(phi_arg_def): New inline function.
	(set_phi_arg_def): New inline function.
	(debug_phi_args): Declare.
	(dump_phi_args): Declare.
	
	* tree-ssa-ccp.c: Use new phi_node_arg type when examining PHI node
	arguments.
	
	* tree-ssa-pre.c: Ditto.
	
	* tree-ssa.c (save_chain): New local variable.
	(build_fud_chains, search_fud_chains): Use it.
	(marked): New local variable.
	(tree_compute_rdefs, follow_chain): Use it.
	(dump_reaching_defs): New function.
	(debug_reaching_defs): New function.

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=1.1.2.50&r2=1.1.2.51
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-dfa.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.13&r2=1.1.4.14
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.11&r2=1.1.4.12
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=1.1.2.15&r2=1.1.2.16
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-pre.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.14&r2=1.1.4.15
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.14&r2=1.1.4.15