Early return in rewrite_commutative_reductions_out_of_ssa when flag_associative_math is not set.

2010-06-23  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-sese-to-poly.c (rewrite_commutative_reductions_out_of_ssa):
	Early return in when flag_associative_math is not set.

From-SVN: r163125

gcc/ChangeLog

 2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>
 
+	* graphite-sese-to-poly.c (rewrite_commutative_reductions_out_of_ssa):
+	Early return in when flag_associative_math is not set.
+
+2010-08-02  Sebastian Pop  <sebastian.pop@amd.com>
+
 	* graphite-sese-to-poly.c (rewrite_phi_out_of_ssa): Always insert out
 	of SSA copies on edges except for loop->latch.
 

gcc/ChangeLog.graphite

 2010-06-23  Sebastian Pop  <sebastian.pop@amd.com>
 
+	* graphite-sese-to-poly.c (rewrite_commutative_reductions_out_of_ssa):
+	Early return in when flag_associative_math is not set.
+
+2010-06-23  Sebastian Pop  <sebastian.pop@amd.com>
+
 	* gcc.dg/graphite/run-id-2.c: Call abort.
 
 2010-06-23  Sebastian Pop  <sebastian.pop@amd.com>

gcc/graphite-sese-to-poly.c

@@ -2829,6 +2829,9 @@ rewrite_commutative_reductions_out_of_ssa (sese region, sbitmap reductions)
   loop_iterator li;
   loop_p loop;
 
+  if (!flag_associative_math)
+    return;
+
   FOR_EACH_LOOP (li, loop, 0)
     if (loop_in_sese_p (loop, region))
       rewrite_commutative_reductions_out_of_ssa_loop (loop, reductions);