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[patch] tree-ssa-live.c: Use a VEC(int,heap) for tpa_to_clear.
- From: Kazu Hirata <kazu at cs dot umass dot edu>
- To: gcc-patches at gcc dot gnu dot org
- Date: Sun, 24 Apr 2005 15:50:53 -0400 (EDT)
- Subject: [patch] tree-ssa-live.c: Use a VEC(int,heap) for tpa_to_clear.
Hi,
Attached is a patch to use a VEC(int,heap) for tpa_to_clear.
Tested on i686-pc-linux-gnu. Committed as preapproved.
Kazu Hirata
2005-04-24 Kazu Hirata <kazu@cs.umass.edu>
* tree-ssa-live.c (build_tree_conflict_graph): Change the type
of tpa_to_clear to VEC(int,heap). Update uses of
tpa_to_clear. Free tpa_to_clear at the end.
Index: tree-ssa-live.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/tree-ssa-live.c,v
retrieving revision 2.33
diff -u -d -p -r2.33 tree-ssa-live.c
--- tree-ssa-live.c 23 Apr 2005 15:10:31 -0000 2.33
+++ tree-ssa-live.c 23 Apr 2005 21:44:19 -0000
@@ -1279,6 +1279,8 @@ add_conflicts_if_valid (tpa_p tpa, confl
}
}
+DEF_VEC_P(int);
+DEF_VEC_ALLOC_P(int,heap);
/* Return a conflict graph for the information contained in LIVE_INFO. Only
conflicts between items in the same TPA list are added. If optional
@@ -1293,8 +1295,8 @@ build_tree_conflict_graph (tree_live_inf
bitmap live;
unsigned x, y, i;
basic_block bb;
- varray_type tpa_to_clear;
int *partition_link, *tpa_nodes;
+ VEC(int,heap) *tpa_to_clear;
unsigned l;
ssa_op_iter iter;
bitmap_iterator bi;
@@ -1309,12 +1311,13 @@ build_tree_conflict_graph (tree_live_inf
partition_link = xcalloc (num_var_partitions (map) + 1, sizeof (int));
tpa_nodes = xcalloc (tpa_num_trees (tpa), sizeof (int));
- VARRAY_INT_INIT (tpa_to_clear, 50, "tpa to clear");
+ tpa_to_clear = VEC_alloc (int, heap, 50);
FOR_EACH_BB (bb)
{
block_stmt_iterator bsi;
tree phi;
+ int idx;
/* Start with live on exit temporaries. */
bitmap_copy (live, live_on_exit (liveinfo, bb));
@@ -1419,7 +1422,7 @@ build_tree_conflict_graph (tree_live_inf
/* If start is 0, a new root reference list is being started.
Register it to be cleared. */
if (!start)
- VARRAY_PUSH_INT (tpa_to_clear, i);
+ VEC_safe_push (int, heap, tpa_to_clear, i);
/* Add interferences to other tpa members seen. */
for (y = start; y != 0; y = partition_link[y])
@@ -1430,13 +1433,14 @@ build_tree_conflict_graph (tree_live_inf
}
/* Now clear the used tpa root references. */
- for (l = 0; l < VARRAY_ACTIVE_SIZE (tpa_to_clear); l++)
- tpa_nodes[VARRAY_INT (tpa_to_clear, l)] = 0;
- VARRAY_POP_ALL (tpa_to_clear);
+ for (l = 0; VEC_iterate (int, tpa_to_clear, l, idx); l++)
+ tpa_nodes[idx] = 0;
+ VEC_truncate (int, tpa_to_clear, 0);
}
free (tpa_nodes);
free (partition_link);
+ VEC_free (int, heap, tpa_to_clear);
BITMAP_FREE (live);
return graph;
}