re PR tree-optimization/21849 (wrong use of sbitmap in tree-ssa-copy.c)

	PR tree-optimization/21849
	* tree-ssa-copy.c (dump_copy_of): Call sbitmap_zero.

From-SVN: r100531

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5dba8017a36b493627fc9f864aa070aefe21093e..e4cce41fc3d6a79bd58af6b32c5cc5de76a45cf2 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-06-03  Kazu Hirata  <kazu@codesourcery.com>
+
+       PR tree-optimization/21849
+       * tree-ssa-copy.c (dump_copy_of): Call sbitmap_zero.
+
 2005-06-02  Richard Henderson  <rth@redhat.com>
 
        * Makefile.in (tree-vect-generic.o): New.

diff --git a/gcc/tree-ssa-copy.c b/gcc/tree-ssa-copy.c
index 2f1072669fbb6138de96af86245c90bb17dac04e..10b09898dbcb83e76888bd151dc06973ca7ebce7 100644 (file)
--- a/gcc/tree-ssa-copy.c
+++ b/gcc/tree-ssa-copy.c
@@ -482,6 +482,7 @@ dump_copy_of (FILE *dump_file, tree var)
     return;
     
   visited = sbitmap_alloc (num_ssa_names);
+  sbitmap_zero (visited);
   SET_BIT (visited, SSA_NAME_VERSION (var));
   
   fprintf (dump_file, " copy-of chain: ");