graphite-optimize-isl.c (get_schedule_for_node_st): Allow --param loop-block-tile...

2017-09-27  Richard Biener  <rguenther@suse.de>

	* graphite-optimize-isl.c (get_schedule_for_node_st): Allow
	--param loop-block-tile-size=0 to disable tiling.

From-SVN: r253227

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8d2edda74ee9002b420dcce2f473a8adca305140..6e7b5e3a8c0cafac1fb2b3c4c8f69547d7448876 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-09-27  Richard Biener  <rguenther@suse.de>
+
+       * graphite-optimize-isl.c (get_schedule_for_node_st): Allow
+       --param loop-block-tile-size=0 to disable tiling.
+
 2017-09-27  Richard Biener  <rguenther@suse.de>
 
        * doc/invoke.texi (graphite-max-bbs-per-function): Remove.

diff --git a/gcc/graphite-optimize-isl.c b/gcc/graphite-optimize-isl.c
index 2f3c4fc533f1dd00b75eef045cb7e380b23e8c9f..e1b960646106032350356942fc39b56044d1fc8c 100644 (file)
--- a/gcc/graphite-optimize-isl.c
+++ b/gcc/graphite-optimize-isl.c
@@ -64,7 +64,10 @@ get_schedule_for_node_st (__isl_take isl_schedule_node *node, void *user)
   if (type != isl_schedule_node_leaf)
     return node;
 
-  if (dims <= 1 || !isl_schedule_node_band_get_permutable (node))
+  long tile_size = PARAM_VALUE (PARAM_LOOP_BLOCK_TILE_SIZE);
+  if (dims <= 1
+      || tile_size == 0
+      || !isl_schedule_node_band_get_permutable (node))
     {
       if (dump_file && dump_flags)
        fprintf (dump_file, "not tiled\n");
@@ -74,7 +77,6 @@ get_schedule_for_node_st (__isl_take isl_schedule_node *node, void *user)
   /* Tile loops.  */
   space = isl_schedule_node_band_get_space (node);
   isl_multi_val *sizes = isl_multi_val_zero (space);
-  long tile_size = PARAM_VALUE (PARAM_LOOP_BLOCK_TILE_SIZE);
   isl_ctx *ctx = isl_schedule_node_get_ctx (node);
 
   for (unsigned i = 0; i < dims; i++)