#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetRegisterInfo.h"
-
using namespace llvm;
char CalculateSpillWeights::ID = 0;
for (MachineBasicBlock::const_iterator mii = mbb->begin(), mie = mbb->end();
mii != mie; ++mii) {
const MachineInstr *mi = mii;
- if (tii->isIdentityCopy(*mi))
- continue;
-
- if (mi->getOpcode() == TargetInstrInfo::IMPLICIT_DEF)
+ if (tii->isIdentityCopy(*mi) || mi->isImplicitDef() || mi->isDebugValue())
continue;
for (unsigned i = 0, e = mi->getNumOperands(); i != e; ++i) {
if (Hint.first || Hint.second)
li.weight *= 1.01F;
- // Divide the weight of the interval by its size. This encourages
- // spilling of intervals that are large and have few uses, and
- // discourages spilling of small intervals with many uses.
- li.weight /= lis->getApproximateInstructionCount(li) * SlotIndex::NUM;
+ lis->normalizeSpillWeight(li);
}
}