gcc/gcc tree-ssa-alias.c ChangeLog.sa

[dberlin@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	structure-aliasing-branch
Changes by:	dberlin@gcc.gnu.org	2004-12-22 22:17:14

Modified files:
	gcc            : tree-ssa-alias.c ChangeLog.sa 

Log message:
	2004-12-22 Daniel Berlin  <dberlin@dberlin.org>
	
	* tree-ssa-alias.c (fieldoff_t): Make offset HOST_WIDE_INT.
	(used_part_t): New structure.
	(used_portions): New array.
	(get_or_create_used_part_for): New function.
	(create_overlap_variables_for): Use used_portions to decide
	what fields we need fake variables for.
	(find_used_portions): New function.
	(old_referenced_vars): New variable.
	(create_structure_vars): Find used portions of structures
	before creating overlap variables.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-alias.c.diff?cvsroot=gcc&only_with_tag=structure-aliasing-branch&r1=2.25.2.8&r2=2.25.2.9
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.sa.diff?cvsroot=gcc&only_with_tag=structure-aliasing-branch&r1=1.1.2.11&r2=1.1.2.12