3 files changed, 47 insertions, 26 deletions

diff --git a/src/cpu/o3/commit_impl.hh b/src/cpu/o3/commit_impl.hh
index 8a2dcdd1f..f6c868720 100644
--- a/src/cpu/o3/commit_impl.hh
+++ b/src/cpu/o3/commit_impl.hh
@@ -58,7 +58,6 @@
 #include "debug/Commit.hh"
 #include "debug/CommitRate.hh"
 #include "debug/ExecFaulting.hh"
-#include "debug/O3PipeView.hh"
 #include "params/DerivO3CPU.hh"
 #include "sim/faults.hh"
 #include "sim/full_system.hh"
@@ -1219,19 +1218,7 @@ DefaultCommit<Impl>::commitHead(DynInstPtr &head_inst, unsigned inst_num)
     rob->retireHead(tid);
 
 #if TRACING_ON
-    // Print info needed by the pipeline activity viewer.
-    DPRINTFR(O3PipeView, "O3PipeView:fetch:%llu:0x%08llx:%d:%llu:%s\n",
-             head_inst->fetchTick,
-             head_inst->instAddr(),
-             head_inst->microPC(),
-             head_inst->seqNum,
-             head_inst->staticInst->disassemble(head_inst->instAddr()));
-    DPRINTFR(O3PipeView, "O3PipeView:decode:%llu\n", head_inst->fetchTick + head_inst->decodeTick);
-    DPRINTFR(O3PipeView, "O3PipeView:rename:%llu\n", head_inst->fetchTick + head_inst->renameTick);
-    DPRINTFR(O3PipeView, "O3PipeView:dispatch:%llu\n", head_inst->fetchTick + head_inst->dispatchTick);
-    DPRINTFR(O3PipeView, "O3PipeView:issue:%llu\n", head_inst->fetchTick + head_inst->issueTick);
-    DPRINTFR(O3PipeView, "O3PipeView:complete:%llu\n", head_inst->fetchTick + head_inst->completeTick);
-    DPRINTFR(O3PipeView, "O3PipeView:retire:%llu\n", curTick());
+    head_inst->commitTick = curTick() - head_inst->fetchTick;
 #endif
 
     // If this was a store, record it for this cycle.
diff --git a/src/cpu/o3/dyn_inst.hh b/src/cpu/o3/dyn_inst.hh
index 8acbf3443..b5344f875 100644
--- a/src/cpu/o3/dyn_inst.hh
+++ b/src/cpu/o3/dyn_inst.hh
@@ -93,6 +93,8 @@ class BaseO3DynInst : public BaseDynInst<Impl>
     /** BaseDynInst constructor given a static inst pointer. */
     BaseO3DynInst(StaticInstPtr _staticInst, StaticInstPtr _macroop);
 
+    ~BaseO3DynInst();
+
     /** Executes the instruction.*/
     Fault execute();
 
@@ -123,12 +125,13 @@ class BaseO3DynInst : public BaseDynInst<Impl>
   public:
 #if TRACING_ON
     /** Tick records used for the pipeline activity viewer. */
-    Tick fetchTick;
-    uint32_t decodeTick;
-    uint32_t renameTick;
-    uint32_t dispatchTick;
-    uint32_t issueTick;
-    uint32_t completeTick;
+    Tick fetchTick;	     // instruction fetch is completed.
+    int32_t decodeTick;  // instruction enters decode phase
+    int32_t renameTick;  // instruction enters rename phase
+    int32_t dispatchTick;
+    int32_t issueTick;
+    int32_t completeTick;
+    int32_t commitTick;
 #endif
 
     /** Reads a misc. register, including any side-effects the read
diff --git a/src/cpu/o3/dyn_inst_impl.hh b/src/cpu/o3/dyn_inst_impl.hh
index 85778aadc..7f8d5a030 100644
--- a/src/cpu/o3/dyn_inst_impl.hh
+++ b/src/cpu/o3/dyn_inst_impl.hh
@@ -43,6 +43,7 @@
 #include "base/cp_annotate.hh"
 #include "cpu/o3/dyn_inst.hh"
 #include "sim/full_system.hh"
+#include "debug/O3PipeView.hh"
 
 template <class Impl>
 BaseO3DynInst<Impl>::BaseO3DynInst(StaticInstPtr staticInst,
@@ -62,6 +63,33 @@ BaseO3DynInst<Impl>::BaseO3DynInst(StaticInstPtr _staticInst,
     initVars();
 }
 
+template <class Impl>BaseO3DynInst<Impl>::~BaseO3DynInst()
+{
+#if TRACING_ON
+    Tick val, fetch = this->fetchTick;
+    // Print info needed by the pipeline activity viewer.
+    DPRINTFR(O3PipeView, "O3PipeView:fetch:%llu:0x%08llx:%d:%llu:%s\n",
+             fetch,
+             this->instAddr(),
+             this->microPC(),
+             this->seqNum,
+             this->staticInst->disassemble(this->instAddr()));
+    val = (this->decodeTick == -1) ? 0 : fetch + this->decodeTick;
+    DPRINTFR(O3PipeView, "O3PipeView:decode:%llu\n", val);
+    val = (this->renameTick == -1) ? 0 : fetch + this->renameTick;
+    DPRINTFR(O3PipeView, "O3PipeView:rename:%llu\n", val);
+    val = (this->dispatchTick == -1) ? 0 : fetch + this->dispatchTick;
+    DPRINTFR(O3PipeView, "O3PipeView:dispatch:%llu\n", val);
+    val = (this->issueTick == -1) ? 0 : fetch + this->issueTick;
+    DPRINTFR(O3PipeView, "O3PipeView:issue:%llu\n", val);
+    val = (this->completeTick == -1) ? 0 : fetch + this->completeTick;
+    DPRINTFR(O3PipeView, "O3PipeView:complete:%llu\n", val);
+    val = (this->commitTick == -1) ? 0 : fetch + this->commitTick;
+    DPRINTFR(O3PipeView, "O3PipeView:retire:%llu\n", val);
+#endif
+};
+
+
 template <class Impl>
 void
 BaseO3DynInst<Impl>::initVars()
@@ -82,12 +110,15 @@ BaseO3DynInst<Impl>::initVars()
     _numDestMiscRegs = 0;
 
 #if TRACING_ON
-    fetchTick = 0;
-    decodeTick = 0;
-    renameTick = 0;
-    dispatchTick = 0;
-    issueTick = 0;
-    completeTick = 0;
+    // Value -1 indicates that particular phase
+    // hasn't happened (yet).
+    fetchTick = -1;
+    decodeTick = -1;
+    renameTick = -1;
+    dispatchTick = -1;
+    issueTick = -1;
+    completeTick = -1;
+    commitTick = -1;
 #endif
 }