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


CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	tree-ssa-20020619-branch
Changes by:	dnovillo@gcc.gnu.org	2003-07-01 04:04:34

Modified files:
	gcc            : ChangeLog.tree-ssa tree-cfg.c tree-dfa.c 
	                 tree-flow-inline.h tree-flow.h 
	                 tree-pretty-print.c tree-simple.c 
	                 tree-ssa-ccp.c tree-ssa-copyprop.c 
	                 tree-ssa-live.c tree-ssa.c tree.c tree.h 

Log message:
	* tree-flow.h (struct tree_ann_common_d): Remove 'stmt' field.
	Update all users.
	(struct var_ann_d): Remove field 'has_real_refs'.  Update all callers
	with calls to SSA_NAME_HAS_REAL_REFS.
	Remove field 'occurs_in_abnormal_phi'.  Update all callers with
	calls to SSA_NAME_OCCURS_IN_ABNORMAL_PHI.
	* tree-flow-inline.h (var_ann): Only accept _DECL nodes.
	(stmt_ann): Only accept GIMPLE statements.
	(tree_stmt): Remove.  Update all users.
	
	* tree-cfg.c (linearize_cond_expr): Handle cases where BB doesn't
	have a postdominator.
	(find_contained_blocks): Do not look inside COND_EXPR_COND nor
	SWITCH_COND expressions.
	
	* tree-dfa.c (get_stmt_operands): Force virtual operands on
	ASM_EXPRs.
	(get_expr_operands): Handle SSA names when adding operands for
	memory tags.
	(add_stmt_operand): Handle SSA names.
	Move checks for volatile operands earlier in the code.
	(add_vdef): Re-format for readability.
	(create_var_ann): Only allow _DECL nodes.
	(create_stmt_ann): Only allow GIMPLE statements.
	(dump_variable): Handle SSA names.
	(dump_may_aliases_for): Likewise.
	(may_access_global_mem_p): Handle SSA names.
	(remove_phi_arg): If the argument removed was the last one with
	real references, update the LHS of the PHI node.
	(add_phi_arg): If the argument added has real references, propagate
	the attribute into the LHS of the PHI node.
	
	* tree-pretty-print.c (dump_generic_node): Only retrieve basic
	block information from GIMPLE statements.
	Always output the THEN and ELSE clauses of COND_EXPR nodes.
	
	* tree-simple.c (is_gimple_stmt): Accept PHI_NODEs.
	(is_gimple_id): Accept SSA_NAMEs.
	
	* tree-ssa-copyprop.c (copyprop_phi): If an argument is used as a
	real operand, propagate the attribute into the LHS of the PHI.
	
	* tree-ssa-live.c (create_ssa_var_map): Don't set 'used' flag on
	both the operand and the result of VDEFs.
	Only register PHI results and arguments that have been used as real
	operands.
	(calculate_live_on_entry): Fix formatting in debugging message.
	
	* tree-ssa.c (register_new_def): Add new argument
	'is_real_operand'.  If it's set, set SSA_NAME_HAS_REAL_REFS for the
	new name.  Update all callers.
	(rewrite_operand): Add new argument 'is_real_operand'.  If it's
	set, set SSA_NAME_HAS_REAL_REFS to the operand.
	(eliminate_build): Ignore PHI arguments and PHI results that have
	not been used in real operands.
	(rewrite_vdefs): Remove.  Update all users.
	(set_is_used): Don't handle SSA names.
	(coalesce_ssa_name): Ignore PHI arguments that have not had real
	references in the program.
	
	* tree.c (make_ssa_name): Update documentation.
	* tree.h (IS_EMPTY_STMT): Call integer_zerop instead of comparing
	against size_zero_node.
	(SSA_NAME_HAS_REAL_REFS): Define.
	(SSA_NAME_OCCURS_IN_ABNORMAL_PHI): Define.
	(struct tree_ssa_name): Add bitfields 'has_real_refs' and
	'occurs_in_abnormal_phi'.

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=1.1.2.470&r2=1.1.2.471
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-cfg.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.122&r2=1.1.4.123
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-dfa.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.124&r2=1.1.4.125
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow-inline.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.37&r2=1.1.2.38
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.87&r2=1.1.4.88
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-pretty-print.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.30&r2=1.1.2.31
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-simple.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.42&r2=1.1.4.43
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=1.1.2.74&r2=1.1.2.75
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-copyprop.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.4&r2=1.1.2.5
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=1.1.2.9&r2=1.1.2.10
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.98&r2=1.1.4.99
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.263.2.37&r2=1.263.2.38
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.342.2.71&r2=1.342.2.72


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