+define pbb
+set dump_bb ($, stderr, 0)
+end
+
+document pbb
+Dump the basic block that is in $, including rtx.
+end
+
+define pbm
+set bitmap_print (stderr, $, "", "\n")
+end
+
+document pbm
+Dump the bitmap that is in $ as a comma-separated list of numbers.
+end
+