2 files changed, 3 insertions, 3 deletions
diff --git a/src/cpu/o3/rob.hh b/src/cpu/o3/rob.hh
index ad7a6d6e7..0289d2c76 100644
--- a/src/cpu/o3/rob.hh
+++ b/src/cpu/o3/rob.hh
@@ -258,7 +258,7 @@ class ROB
      *  threadEntries to get the instructions in the ROB unless you are
      *  double checking that variable.
      */
-    int countInsts(ThreadID tid);
+    size_t countInsts(ThreadID tid);
 
     /** Registers statistics. */
     void regStats();
diff --git a/src/cpu/o3/rob_impl.hh b/src/cpu/o3/rob_impl.hh
index 5d5d821b8..432d43f9c 100644
--- a/src/cpu/o3/rob_impl.hh
+++ b/src/cpu/o3/rob_impl.hh
@@ -153,7 +153,7 @@ void
 ROB<Impl>::resetEntries()
 {
     if (robPolicy != SMTQueuePolicy::Dynamic || numThreads > 1) {
-        int active_threads = activeThreads->size();
+        auto active_threads = activeThreads->size();
 
         list<ThreadID>::iterator threads = activeThreads->begin();
         list<ThreadID>::iterator end = activeThreads->end();
@@ -195,7 +195,7 @@ ROB<Impl>::countInsts()
 }
 
 template <class Impl>
-int
+size_t
 ROB<Impl>::countInsts(ThreadID tid)
 {
     return instList[tid].size();