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

[dnovillo@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	tree-ssa-20020619-branch
Changes by:	dnovillo@gcc.gnu.org	2004-03-12 04:19:06

Modified files:
	gcc            : ChangeLog.tree-ssa tree-dfa.c tree-flow.h 
	                 tree-optimize.c tree-simple.c tree-ssa-alias.c 
	                 tree-ssa-copy.c tree-ssa-copyrename.c 
	                 tree-ssa-loop.c tree-ssa-operands.c tree-ssa.c 

Log message:
	2004-03-11  Diego Novillo  <dnovillo@redhat.com>
	
	* tree-dfa.c (struct walk_state): Remove fields 'is_store' and
	'is_indirect_ref'.  Update all users.
	* tree-flow.h (struct var_ann_d): Remove fields 'is_stored',
	'is_dereferenced_store' and 'is_dereferenced_load'.  Update
	all users.
	* tree-simple.c (get_base_address): Handle BIT_FIELD_REF.
	* tree-ssa-alias.c (struct alias_info): Add fields
	'written_vars', 'dereferenced_ptrs_store' and
	'dereferenced_ptrs_load'.
	(init_alias_info): Initialize them.
	(delete_alias_info): Free them.
	(find_ptr_dereference): New.
	(ptr_is_dereferenced_by): Call it.
	Add new argument 'is_store'.  Set to true if the
	expression is an indirect store operation.
	(compute_points_to_and_addr_escape): If the statement
	makes a store, load or write operation, update the
	corresponding bitmap.
	(compute_flow_insensitive_aliasing): Test the
	'written_vars' bitmap to determine if alias sets should
	be computed.
	(setup_pointers_and_addressables): Always assume that
	volatile pointers and hidden pointers have been used in a
	memory store operation.
	* tree-ssa-operands.c (add_stmt_operand): Do add an
	operand for may-aliased variables before computing
	aliases.
	
	2004-03-11  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
	
	* tree-optimize.c (init_tree_optimization_passes): Move
	pass_tail_recursion and pass_ch after pass_may_alias.
	* tree-ssa-loop.c (mark_defs_for_rewrite): Mark type tags
	for rewriting.
	* tree-ssa.c (mark_def_sites): Process the operand of a
	VDEF before the result.

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=1.1.2.1269&r2=1.1.2.1270
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-dfa.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.219&r2=1.1.4.220
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.195&r2=1.1.4.196
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-optimize.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.132&r2=1.1.4.133
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-simple.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.73&r2=1.1.4.74
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-alias.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.10&r2=1.1.2.11
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-copy.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.3&r2=1.1.2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-copyrename.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.2&r2=1.1.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.10&r2=1.1.2.11
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-operands.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.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.210&r2=1.1.4.211