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r144446 - in /branches/alias-improvements/gcc: ...


Author: rguenth
Date: Thu Feb 26 10:10:52 2009
New Revision: 144446

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=144446
Log:
2009-02-26  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/39299
	* tree-ssa-structalias.c (struct variable_info): Remove collapsed_to
	member.
	(get_varinfo_fc): Remove.
	(new_var_info): Do not set collapsed_to.
	(dump_constraint): Do not follow cycles.
	(dump_constraint_graph): Likewise.
	(build_pred_graph): Likewise.
	(build_succ_graph): Likewise.
	(rewrite_constraints): Likewise.
	(do_simple_structure_copy): Remove.
	(do_rhs_deref_structure_copy): Remove.
	(do_lhs_deref_structure_copy): Remove.
	(collapse_rest_of_var): Remove.
	(do_structure_copy): Re-implement.

	* gcc.dg/torture/pta-structcopy-1.c: New testcase.

Added:
    branches/alias-improvements/gcc/testsuite/gcc.dg/torture/pta-structcopy-1.c
Modified:
    branches/alias-improvements/gcc/ChangeLog.alias
    branches/alias-improvements/gcc/tree-ssa-structalias.c


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