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r157827 - in /branches/mem-ref2/gcc: ChangeLog....
- From: rguenth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Tue, 30 Mar 2010 15:07:02 -0000
- Subject: 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