[PATCH 25/28] Move rewrite_commutative_reductions_out_of_ssa before find_scop_parameters.

[Sebastian Pop]

From: spop <spop@138bc75d-0d04-0410-961f-82ee72b054a4>

2011-01-19  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-sese-to-poly.c (build_poly_scop): Move
	rewrite_commutative_reductions_out_of_ssa before
	find_scop_parameters.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/graphite@169044 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/ChangeLog               |    6 ++++++
 gcc/ChangeLog.graphite      |    6 ++++++
 gcc/graphite-sese-to-poly.c |    5 +++--
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e325c64..3cdbd3b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,11 @@
 2011-01-21  Sebastian Pop  <sebastian.pop@amd.com>
 
+	* graphite-sese-to-poly.c (build_poly_scop): Move
+	rewrite_commutative_reductions_out_of_ssa before
+	find_scop_parameters.
+
+2011-01-21  Sebastian Pop  <sebastian.pop@amd.com>
+
 	* graphite-sese-to-poly.c (close_phi_written_to_memory): Also allow
 	VAR_DECL, PARM_DECL, and RESULT_DECL.
 
diff --git a/gcc/ChangeLog.graphite b/gcc/ChangeLog.graphite
index 3b81049..c611368 100644
--- a/gcc/ChangeLog.graphite
+++ b/gcc/ChangeLog.graphite
@@ -1,3 +1,9 @@
+2011-01-19  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* graphite-sese-to-poly.c (build_poly_scop): Move
+	rewrite_commutative_reductions_out_of_ssa before
+	find_scop_parameters.
+
 2011-01-18  Sebastian Pop  <sebastian.pop@amd.com>
 
 	PR tree-optimization/46970
diff --git a/gcc/graphite-sese-to-poly.c b/gcc/graphite-sese-to-poly.c
index 35a2316..3f419c8 100644
--- a/gcc/graphite-sese-to-poly.c
+++ b/gcc/graphite-sese-to-poly.c
@@ -3159,6 +3159,9 @@ build_poly_scop (scop_p scop)
   if (!scop_ivs_can_be_represented (scop))
     return;
 
+  if (flag_associative_math)
+    rewrite_commutative_reductions_out_of_ssa (scop);
+
   build_sese_loop_nests (region);
   build_sese_conditions (region);
   find_scop_parameters (scop);
@@ -3175,8 +3178,6 @@ build_poly_scop (scop_p scop)
      representation to the polyhedral representation to avoid scev
      analysis failures.  That means that these functions will insert
      new data references that they create in the right place.  */
-  if (flag_associative_math)
-    rewrite_commutative_reductions_out_of_ssa (scop);
   rewrite_reductions_out_of_ssa (scop);
   rewrite_cross_bb_scalar_deps_out_of_ssa (scop);
 
-- 
1.7.1