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


CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	tree-ssa-20020619-branch
Changes by:	law@gcc.gnu.org	2003-06-26 01:07:06

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

Log message:
	* tree-cfg.c (remove_useless_stmts_and_vars): On the first
	iteration, remove unused variables from BIND_EXPRs.
	* tree-flow.h (var_ann_d): Add new field USED.
	(set_is_used): Prototype.
	(remove_useless_stmts_and_vars): Update prototype.
	* tree-ssa-live.c (create_ssa_var_map): Note which variables
	are used so that we can delete those which are not used.
	* tree-ssa.c (create_temp): Mark the new temporary as being used.
	(rewrite_out_of_ssa): Note if the call to remove_useless_stmts_and_vars
	is the first iteration or not.
	(set_is_used): 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=1.1.2.461&r2=1.1.2.462
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-cfg.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.119&r2=1.1.4.120
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.86&r2=1.1.4.87
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-live.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.8&r2=1.1.2.9
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.97&r2=1.1.4.98


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