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r143011 - in /branches/alias-improvements/gcc: ...
- From: rguenth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Fri, 02 Jan 2009 13:37:07 -0000
- Subject: r143011 - in /branches/alias-improvements/gcc: ...
Author: rguenth
Date: Fri Jan 2 13:37:06 2009
New Revision: 143011
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143011
Log:
2009-01-02 Richard Guenther <rguenther@suse.de>
* tree-ssa-alias.c (ref_may_used_by_call_p): New function.
(ref_may_used_by_stmt_p): Likewise.
(call_may_clobber_ref_p): Handle more cases.
(stmt_may_clobber_ref_p): Export.
* tree-ssa-alias.h (ref_may_used_by_stmt_p): Declare.
(stmt_may_clobber_ref_p): Likewise.
* tree-ssa-dse.c (struct address_walk_data): Remove.
(memory_ssa_name_same): Likewise.
(memory_address_same): Likewise.
(get_kill_of_stmt_lhs): Likewise.
(dse_possible_dead_store_p): Simplify, use the oracle. Handle
unused stores.
(dse_optimize_stmt): Simplify. Properly remove stores.
testsuite/
* gcc.dg/noncompile/920507-1.c: Fix invalid dead array access.
Modified:
branches/alias-improvements/gcc/ChangeLog.alias
branches/alias-improvements/gcc/testsuite/gcc.dg/noncompile/920507-1.c
branches/alias-improvements/gcc/tree-ssa-alias.c
branches/alias-improvements/gcc/tree-ssa-alias.h
branches/alias-improvements/gcc/tree-ssa-dse.c