diff --git a/icebox/icebox_stat.py b/icebox/icebox_stat.py
index ffb7b6a..ec404fb 100755
--- a/icebox/icebox_stat.py
+++ b/icebox/icebox_stat.py
@@ -16,6 +16,7 @@
 #
 
 import icebox
+from icebox import re_match_cached
 import getopt, sys, re
 
 verbose = False
@@ -72,23 +73,23 @@
 for segs in connections:
     for seg in segs:
         if ic.tile_type(seg[0], seg[1]) == "IO" and seg[2].startswith("io_"):
-            match = re.match("io_(\d+)/D_(IN|OUT)_(\d+)", seg[2])
+            match = re_match_cached("io_(\d+)/D_(IN|OUT)_(\d+)", seg[2])
             if match:
                 loc = (seg[0], seg[1], int(match.group(1)))
                 io_locations.add(loc)
 
         if ic.tile_type(seg[0], seg[1]) == "LOGIC" and seg[2].startswith("lutff_"):
-            match = re.match("lutff_(\d)/in_\d", seg[2])
+            match = re_match_cached("lutff_(\d)/in_\d", seg[2])
             if match:
                 loc = (seg[0], seg[1], int(match.group(1)))
                 lut_locations.add(loc)
 
-            match = re.match("lutff_(\d)/cout", seg[2])
+            match = re_match_cached("lutff_(\d)/cout", seg[2])
             if match:
                 loc = (seg[0], seg[1], int(match.group(1)))
                 carry_locations.add(loc)
 
-            match = re.match("lutff_(\d)/out", seg[2])
+            match = re_match_cached("lutff_(\d)/out", seg[2])
             if match:
                 loc = (seg[0], seg[1], int(match.group(1)))
                 seq_bits = icebox.get_lutff_seq_bits(ic.tile(loc[0], loc[1]), loc[2])
@@ -100,7 +101,7 @@
             bram_locations.add(loc)
 
         if seg[2].startswith("glb_netwk_"):
-            match = re.match("glb_netwk_(\d)", seg[2])
+            match = re_match_cached("glb_netwk_(\d)", seg[2])
             if match:
                 global_nets.add(int(match.group(1)))
 
@@ -108,7 +109,7 @@
 
 for entry in icebox.iotile_l_db:
     if entry[1] == "PLL":
-        match = re.match(r"B(\d+)\[(\d+)\]", entry[0][0]);
+        match = re_match_cached(r"B(\d+)\[(\d+)\]", entry[0][0]);
         assert match
         pll_config_bitidx[entry[2]] = (int(match.group(1)), int(match.group(2)))