[LNT] r213270 - Fix crash when no result to compare against

[Yi Kong]

Author: kongyi
Date: Thu Jul 17 10:50:43 2014
New Revision: 213270

URL: http://llvm.org/viewvc/llvm-project?rev=213270&view=rev
Log:
Fix crash when no result to compare against


Modified:
    lnt/trunk/lnt/server/reporting/analysis.py

Modified: lnt/trunk/lnt/server/reporting/analysis.py
URL: http://llvm.org/viewvc/llvm-project/lnt/trunk/lnt/server/reporting/analysis.py?rev=213270&r1=213269&r2=213270&view=diff
==============================================================================
--- lnt/trunk/lnt/server/reporting/analysis.py (original)
+++ lnt/trunk/lnt/server/reporting/analysis.py Thu Jul 17 10:50:43 2014
@@ -248,10 +248,10 @@ class RunInfo(object):
         # Smallest possible change we ever look for.
         MIN_VALUE = 0.00001
 
-        if not run_values:
-            return None
+        values = [v + MIN_VALUE for v in run_values if v]
 
-        values = [v + MIN_VALUE for v in run_values]
+        if not values:
+            return None
 
         return util.geometric_mean(values) - MIN_VALUE