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r143035 - in /branches/alias-improvements/gcc: ...


Author: rguenth
Date: Sat Jan  3 20:29:53 2009
New Revision: 143035

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143035
Log:
2008-01-03  Richard Guenther  <rguenther@suse.de>

	* tree-flow-inline.h (may_be_aliased): Query the addressable
	vars bitmap in addition to checking TREE_ADDRESSABLE.
	* tree-ssa-structalias.c (get_constraint_for_ptr_offset):
	For field-sensitive analysis also handle variable offsets
	on addresses of variables that did not get decomposed.
	(find_func_aliases): Fix constraint generation for asm statements.
	(find_what_var_points_to): Do not set pt_nonlocal for heap
	variables.
	* tree-dfa.c (refs_may_alias_p): Disambiguate two indirect
	references with PTA information.
	* tree-ssa-alias.h (may_point_to_same_object): Declare.
	* tree-ssa-alias.c (may_point_to_same_object): New function.
	(ref_may_used_by_call_p): Fix handling of indirect references.

Modified:
    branches/alias-improvements/gcc/ChangeLog.alias
    branches/alias-improvements/gcc/tree-dfa.c
    branches/alias-improvements/gcc/tree-flow-inline.h
    branches/alias-improvements/gcc/tree-ssa-alias.c
    branches/alias-improvements/gcc/tree-ssa-alias.h
    branches/alias-improvements/gcc/tree-ssa-structalias.c


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