Measure time spent in DD analysis and in code gen.

2009-08-05  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-clast-to-gimple.c (gloog): Add time to TV_GRAPHITE_CODE_GEN.
	* graphite-dependences.c (graphite_legal_transform): Add time to
	TV_GRAPHITE_DATA_DEPS.
	(dependency_between_pbbs_p): Same.
	* timevar.def (TV_GRAPHITE_DATA_DEPS, TV_GRAPHITE_CODE_GEN): New.

From-SVN: r150683

gcc/ChangeLog

+2009-08-12  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* graphite-clast-to-gimple.c (gloog): Add time to TV_GRAPHITE_CODE_GEN.
+	* graphite-dependences.c (graphite_legal_transform): Add time to
+	TV_GRAPHITE_DATA_DEPS.
+	(dependency_between_pbbs_p): Same.
+	* timevar.def (TV_GRAPHITE_DATA_DEPS, TV_GRAPHITE_CODE_GEN): New.
+
 2009-08-12  Andrey Belevantsev  <abel@ispras.ru>
 
 	PR rtl-optimization/41033

gcc/ChangeLog.graphite

+2009-08-05  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* graphite-clast-to-gimple.c (gloog): Add time to TV_GRAPHITE_CODE_GEN.
+	* graphite-dependences.c (graphite_legal_transform): Add time to
+	TV_GRAPHITE_DATA_DEPS.
+	(dependency_between_pbbs_p): Same.
+	* timevar.def (TV_GRAPHITE_DATA_DEPS, TV_GRAPHITE_CODE_GEN): New.
+
+2009-08-03  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* Merge from mainline (r149952:150372).
+
 2009-07-28  Sebastian Pop  <sebastian.pop@amd.com>
 
 	* ChangeLog.graphite: Fix indenting, white spaces and 80 columns.

gcc/common.opt

@@ -571,12 +571,10 @@ fgraphite
 Common Report Var(flag_graphite)
 Enable in and out of Graphite representation
 
-; This option is not documented as it does not perform any useful optimization.
 fgraphite-identity
 Common Report Var(flag_graphite_identity) Optimization
 Enable Graphite Identity transformation
 
-; This option is not documented as it will be removed
 floop-parallelize-all
 Common Report Var(flag_loop_parallelize_all) Optimization
 Mark all loops as parallel

gcc/graphite-clast-to-gimple.c

@@ -1160,7 +1160,11 @@ gloog (scop_p scop, htab_t bb_pbb_mapping)
   sese region = SCOP_REGION (scop);
   ifsese if_region = NULL;
   htab_t rename_map, newivs_index;
-  cloog_prog_clast pc = scop_to_clast (scop);
+  cloog_prog_clast pc;
+
+  timevar_push (TV_GRAPHITE_CODE_GEN);
+
+  pc = scop_to_clast (scop);
 
   if (dump_file && (dump_flags & TDF_DETAILS))
     {
@@ -1206,6 +1210,8 @@ gloog (scop_p scop, htab_t bb_pbb_mapping)
   VEC_free (tree, heap, newivs);
   cloog_clast_free (pc.stmt);
   cloog_program_free (pc.prog);
+  timevar_pop (TV_GRAPHITE_CODE_GEN);
+
   return true;
 }
 

gcc/graphite-dependences.c

@@ -556,11 +556,17 @@ graphite_legal_transform (scop_p scop)
   int i, j;
   poly_bb_p pbb1, pbb2;
 
+  timevar_push (TV_GRAPHITE_DATA_DEPS);
+
   for (i = 0; VEC_iterate (poly_bb_p, SCOP_BBS (scop), i, pbb1); i++)
     for (j = 0; VEC_iterate (poly_bb_p, SCOP_BBS (scop), j, pbb2); j++)
       if (!graphite_legal_transform_bb (pbb1, pbb2))
-	return false;
+	{
+	  timevar_pop (TV_GRAPHITE_DATA_DEPS);
+	  return false;
+	}
 
+  timevar_pop (TV_GRAPHITE_DATA_DEPS);
   return true;
 }
 
@@ -681,11 +687,17 @@ dependency_between_pbbs_p (poly_bb_p pbb1, poly_bb_p pbb2, int level)
   int i, j;
   poly_dr_p pdr1, pdr2;
 
+  timevar_push (TV_GRAPHITE_DATA_DEPS);
+
   for (i = 0; VEC_iterate (poly_dr_p, PBB_DRS (pbb1), i, pdr1); i++)
     for (j = 0; VEC_iterate (poly_dr_p, PBB_DRS (pbb2), j, pdr2); j++)
       if (graphite_carried_dependence_level_k (pdr1, pdr2, level))
-	return true;
+	{
+	  timevar_pop (TV_GRAPHITE_DATA_DEPS);
+	  return true;
+	}
 
+  timevar_pop (TV_GRAPHITE_DATA_DEPS);
   return false;
 }
 

gcc/timevar.def

@@ -122,7 +122,9 @@ DEFTIMEVAR (TV_COMPLETE_UNROLL       , "complete unrolling")
 DEFTIMEVAR (TV_TREE_PARALLELIZE_LOOPS, "tree parallelize loops")
 DEFTIMEVAR (TV_TREE_VECTORIZATION    , "tree vectorization")
 DEFTIMEVAR (TV_TREE_SLP_VECTORIZATION, "tree slp vectorization")
-DEFTIMEVAR (TV_GRAPHITE_TRANSFORMS   , "GRAPHITE loop transforms")
+DEFTIMEVAR (TV_GRAPHITE_TRANSFORMS   , "Graphite loop transforms")
+DEFTIMEVAR (TV_GRAPHITE_DATA_DEPS    , "Graphite data dep analysis")
+DEFTIMEVAR (TV_GRAPHITE_CODE_GEN     , "Graphite code generation")
 DEFTIMEVAR (TV_TREE_LINEAR_TRANSFORM , "tree loop linear")
 DEFTIMEVAR (TV_TREE_LOOP_DISTRIBUTION, "tree loop distribution")
 DEFTIMEVAR (TV_CHECK_DATA_DEPS       , "tree check data dependences")

gcc/tree-parloops.c

@@ -1801,6 +1801,11 @@ parallelize_loops (void)
     {
       htab_empty (reduction_list);
 
+      /* If we use autopar in graphite pass, we use it's marked dependency
+      checking results.  */
+      if (flag_loop_parallelize_all && !loop->can_be_parallel)
+	continue;
+
       /* FIXME: Only consider innermost loops with just one exit.  */
       if (loop->inner || !single_dom_exit (loop))
 	continue;
@@ -1811,19 +1816,22 @@ parallelize_loops (void)
 	  /* FIXME: the check for vector phi nodes could be removed.  */
 	  || loop_has_vector_phi_nodes (loop))
 	continue;
-     
-        if (/* Do not bother with loops in cold areas.  */
-	    optimize_loop_nest_for_size_p (loop)
-	    /* Or loops that roll too little.  */
-	    || expected_loop_iterations (loop) <= n_threads)
+
+      /* FIXME: Bypass this check as graphite doesn't update the
+      count and frequency correctly now.  */
+      if (!flag_loop_parallelize_all
+	  && (expected_loop_iterations (loop) <= n_threads
+	      /* Do not bother with loops in cold areas.  */
+	      || optimize_loop_nest_for_size_p (loop)))
 	continue;
+
       if (!try_get_loop_niter (loop, &niter_desc))
 	continue;
 
       if (!try_create_reduction_list (loop, reduction_list))
 	continue;
 
-      if (!loop_parallel_p (loop))
+      if (!flag_loop_parallelize_all && !loop_parallel_p (loop))
 	continue;
 
       changed = true;