[tree-ssa] fix memory leak in tree-ssa-dom.c

[Andrew Pinski]

This simple patch fixes a memory leak in tree-ssa-dom.

Tested on powerpc-apple-darwin with no regressions and
the memory leak fixed.

ChangeLog:

	* tree-ssa-dom.c (tree_ssa_dominator_optimize):
	Free nonzero_vars at the end of the function.


Patch:
Index: tree-ssa-dom.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/Attic/tree-ssa-dom.c,v
retrieving revision 1.1.2.161
diff -u -p -r1.1.2.161 tree-ssa-dom.c
--- tree-ssa-dom.c	5 May 2004 17:14:20 -0000	1.1.2.161
+++ tree-ssa-dom.c	7 May 2004 14:05:05 -0000
@@ -630,6 +630,9 @@ tree_ssa_dominator_optimize (void)

    /* And finalize the dominator walker.  */
    fini_walk_dominator_tree (&walk_data);
+
+  /* Free nonzero_vars.   */
+  BITMAP_XFREE (nonzero_vars);
  }

  static bool

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