+# For example:
+#
+# % tracediff m5.opt --opt1 "--opt2|--opt3" --opt4
+# would compare these two runs:
+# m5.opt --opt1 --opt2 --opt4
+# m5.opt --opt1 --opt3 --opt4
+#
+# If you want to compare two different simulator binaries, put a '|'
+# in the first script argument ("path1/m5.opt|path2/m5.opt"). If you
+# want to add arguments to one run only, just put a '|' in with text
+# only on one side ("--onlyOn1|"). You can do this with multiple
+# arguments together too ("|-a -b -c" adds three args to the second
+# run only).
+#
+
+use FindBin;