using namespace llvm;
STATISTIC(NumSpills , "Number of register spills");
+STATISTIC(NumIdCopies, "Number of identity moves eliminated after rewriting");
//===----------------------------------------------------------------------===//
// VirtRegMap implementation
// Finally, remove any identity copies.
if (MI->isIdentityCopy()) {
+ ++NumIdCopies;
if (MI->getNumOperands() == 2) {
DEBUG(dbgs() << "Deleting identity copy.\n");
RemoveMachineInstrFromMaps(MI);