tree-ssa-dce.c (perform_tree_ssa_dce): Allocate visited bitmap.

[gcc.git] / gcc / tree-ssa-dce.c

diff --git a/gcc/tree-ssa-dce.c b/gcc/tree-ssa-dce.c
index 8669cdfa852248ec7ff0b545bd1d524cb46aa22b..0ddda761ab66fb78c748d5d6d5f43e0041353f01 100644 (file)
--- a/gcc/tree-ssa-dce.c
+++ b/gcc/tree-ssa-dce.c
@@ -1377,6 +1377,7 @@ perform_tree_ssa_dce (bool aggressive)
   longest_chain = 0;
   total_chain = 0;
   chain_ovfl = false;
+  visited = BITMAP_ALLOC (NULL);
   propagate_necessity (el);
   BITMAP_FREE (visited);