graphite-blocking.c (pbb_do_strip_mine): Use PARAM_LOOP_BLOCK_TILE_SIZE.

2009-10-13  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-blocking.c (pbb_do_strip_mine): Use
	PARAM_LOOP_BLOCK_TILE_SIZE.
	* params.def (PARAM_LOOP_BLOCK_TILE_SIZE): Declared.

From-SVN: r154574

gcc/ChangeLog.graphite

 2009-10-13  Sebastian Pop  <sebastian.pop@amd.com>
 
+	* graphite-blocking.c (pbb_do_strip_mine): Use
+	PARAM_LOOP_BLOCK_TILE_SIZE.
+
+2009-10-13  Sebastian Pop  <sebastian.pop@amd.com>
+
 	* graphite-poly.c (dot_lst_1): New.
 	(dot_lst): New.
 	* graphite-poly.h (dot_lst): Declared.

gcc/graphite-blocking.c

@@ -202,7 +202,7 @@ static bool
 pbb_do_strip_mine (poly_bb_p pbb)
 {
   graphite_dim_t s_dim;
-  int stride = 64;
+  int stride = PARAM_VALUE (PARAM_LOOP_BLOCK_TILE_SIZE);
   bool transform_done = false;
 
   for (s_dim = 0; s_dim < pbb_nb_dynamic_scattering_transform (pbb); s_dim++)

gcc/params.def

@@ -733,6 +733,13 @@ DEFPARAM (PARAM_SWITCH_CONVERSION_BRANCH_RATIO,
 	  "a switch conversion to take place",
 	  8, 1, 0)
 
+/* Size of tiles when doing loop blocking.  */
+
+DEFPARAM (PARAM_LOOP_BLOCK_TILE_SIZE,
+	  "loop-block-tile-size",
+	  "size of tiles for loop blocking",
+	  51, 0, 0)
+
 /* Avoid doing loop invariant motion on very large loops.  */
 
 DEFPARAM (PARAM_LOOP_INVARIANT_MAX_BBS_IN_LOOP,