[llvm-commits] [llvm] r47710 - /llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp

[Evan Cheng]

Author: evancheng
Date: Thu Feb 28 01:40:24 2008
New Revision: 47710

URL: http://llvm.org/viewvc/llvm-project?rev=47710&view=rev
Log:
Keep track how many commutes are performed by the scheduler.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp?rev=47710&r1=47709&r2=47710&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp Thu Feb 28 01:40:24 2008
@@ -24,10 +24,13 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Target/TargetLowering.h"
+#include "llvm/ADT/Statistic.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/MathExtras.h"
 using namespace llvm;
 
+STATISTIC(NumCommutes,   "Number of instructions commuted");
+
 ScheduleDAG::ScheduleDAG(SelectionDAG &dag, MachineBasicBlock *bb,
                          const TargetMachine &tm)
   : DAG(dag), BB(bb), TM(tm), RegInfo(BB->getParent()->getRegInfo()) {
@@ -733,6 +736,7 @@
           delete MI;
           MI = NewMI;
         }
+        ++NumCommutes;
       }
     }