Currently ISL aborts on this special value and for debugging (and
tuning?) it's nice to avoid all the clutter introduced by tiling.
Committed as obvious.
Richard.
2017-09-27 Richard Biener
* graphite-optimize-isl.c (get_schedule_for_node_st): Allow
--param loop-block-tile-size=0 to disable tiling.
Index: gcc/graphite-optimize-isl.c
===
--- gcc/graphite-optimize-isl.c (revision 253226)
+++ gcc/graphite-optimize-isl.c (working copy)
@@ -64,7 +64,10 @@ get_schedule_for_node_st (__isl_take isl
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
/* 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++)