[graphite] Regression testing on 2009_07_01_00_00_01

[Graphite SVN tester]

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http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149111
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r149111 | spop | 2009-06-30 19:14:21 +0200 (Tue, 30 Jun 2009) | 6 lines

Fix use of ppl_Pointset_Powerset_NNC_Polyhedron_maximize.

2009-06-30  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-poly.c (pbb_number_of_iterations): Check for returned
	value 1 from ppl_Pointset_Powerset_NNC_Polyhedron_maximize.
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