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r157827 - in /branches/mem-ref2/gcc: ChangeLog....


Author: rguenth
Date: Tue Mar 30 15:07:01 2010
New Revision: 157827

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157827
Log:
2010-03-30  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-ccp.c (may_propagate_address_into_dereference):
	Handle MEM_REF.
	* tree-ssa-forwprop.c (forward_propagate_addr_expr_1):
	Propagate through constant pointer adjustments.
	Re-instantiate more cases to propagate into dereferences.
	(tree_ssa_forward_propagate_single_use_vars): Adjust
	accordingly.
	* tree-ssa-alias.c (indirect_ref_may_alias_decl_p): Fix
	offset check.  Disable fancy access-path based TBAA disambiguation.
	(indirect_refs_may_alias_p): Likewise.

Modified:
    branches/mem-ref2/gcc/ChangeLog.mem-ref2
    branches/mem-ref2/gcc/tree-ssa-alias.c
    branches/mem-ref2/gcc/tree-ssa-ccp.c
    branches/mem-ref2/gcc/tree-ssa-forwprop.c


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