cpu: Only check for PC events on instruction boundaries.

Only the instruction address is actually checked, so there's no need to check
repeatedly while we're working through the microops of a macroop and that's
not changing.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/cpu/simple/atomic.cc b/src/cpu/simple/atomic.cc
index 8dcae01c5..aeaebcdb8 100644
--- a/src/cpu/simple/atomic.cc
+++ b/src/cpu/simple/atomic.cc
@@ -1,4 +1,5 @@
 /*
+ * Copyright 2014 Google, Inc.
  * Copyright (c) 2012-2013 ARM Limited
  * All rights reserved.
  *
@@ -518,10 +519,11 @@ AtomicSimpleCPU::tick()
         numCycles++;
         ppCycles->notify(1);
 
-        if (!curStaticInst || !curStaticInst->isDelayedCommit())
+        if (!curStaticInst || !curStaticInst->isDelayedCommit()) {
             checkForInterrupts();
+            checkPcEventQueue();
+        }
 
-        checkPcEventQueue();
         // We must have just got suspended by a PC event
         if (_status == Idle) {
             tryCompleteDrain();