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Keep track how many commutes are performed by the scheduler.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47710 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2008-02-28 07:40:24 +00:00
parent 6baaf91598
commit 643afa55e7
1 changed files with 4 additions and 0 deletions
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4
lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
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@ -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 @@ void ScheduleDAG::EmitNode(SDNode *Node, unsigned InstanceNo,
delete MI;
MI = NewMI;
}
++NumCommutes;
}
}