diff -r 1d085f66c4ca src/cpu/pred/tournament.hh
--- a/src/cpu/pred/tournament.hh        Thu Nov 17 04:54:18 2016 -0500
+++ b/src/cpu/pred/tournament.hh        Fri Nov 18 13:56:40 2016 +0100
@@ -57,9 +57,8 @@
  * used in the 21264.  It has a local predictor, which uses a local history
  * table to index into a table of counters, and a global predictor, which
  * uses a global history to index into a table of counters.  A choice
- * predictor chooses between the two.  Only the global history register
- * is speculatively updated, the rest are updated upon branches committing
- * or misspeculating.
+ * predictor chooses between the two.  Both the global history register
+ * and the selected local history are speculatively updated.
  */
 class TournamentBP : public BPredUnit
 {
# HG changeset patch
# Parent  1d085f66c4ca9bb4d4ca58a9f964a2b650f0cd91

diff -r 1d085f66c4ca src/cpu/pred/tournament.cc
--- a/src/cpu/pred/tournament.cc        Thu Nov 17 04:54:18 2016 -0500
+++ b/src/cpu/pred/tournament.cc        Fri Nov 18 13:56:40 2016 +0100
@@ -222,8 +222,8 @@
 
     assert(local_history_idx < localHistoryTableSize);
 
-    // Commented code is for doing speculative update of counters and
-    // all histories.
+    // Speculative update of the global history and the
+    // selected local history.
     if (choice_prediction) {
         if (global_prediction) {
             updateGlobalHistTaken(tid);