2005-01-08  Jeff Law  <law@redhat.com>
	    Diego Novillo  <dnovillo@redhat.com>

	* tree-nrv.c (tree_nrv): Ignore volatile return values.
	* tree-ssa-dse.c (dse_optimize_stmt): Do not optimize
	statements with volatile operands.
	* tree-ssa-operands.c (add_stmt_operand): Do add volatile
	operands after marking a statement with has_volatile_ops.

testsuite/ChangeLog:

2005-01-08  Diego Novillo  <dnovillo@redhat.com>

	* gcc.dg/pr18241-1.c: New test.
	* gcc.dg/pr18241-2.c: New test.
	* gcc.dg/pr18241-3.c: New test.
	* gcc.dg/pr18241-4.c: New test.
	* gcc.dg/pr18241-5.c: New test.

From-SVN: r93088