Add titan23 benchmarks to regression tests

Note that these are not enabled in TravisCI, as Travis machines
have insufficient memory to run titan23 tests.

Author: kmurray

.gitignore

@@ -57,5 +57,6 @@ callgrind*
 test/mcnc20
 test/vtr
 test/titan_other
+test/titan23
 *.tar
 *.tar.gz

scripts/reg_test.py

@@ -18,9 +18,7 @@
     'mcnc20': ["http://www.eecg.utoronto.ca/~kmurray/tatum/golden_results/mcnc20_tatum_golden.tar"],
     'vtr': ["http://www.eecg.utoronto.ca/~kmurray/tatum/golden_results/vtr_tatum_golden.tar"],
     'titan_other': ["http://www.eecg.utoronto.ca/~kmurray/tatum/golden_results/titan_other_tatum_golden.tar"],
-    #'titan': [
-
-        #],
+    'titan23': ["http://www.eecg.utoronto.ca/~kmurray/tatum/golden_results/titan23_tatum_golden.tar"],
     #'tau15_unit_delay': [
 
         #],