#include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/Statistic.h"
-#include <set>
using namespace llvm;
STATISTIC(NumNoops, "Number of noops inserted");
void SchedulePostRATDList::FixupKills(MachineBasicBlock *MBB) {
DEBUG(dbgs() << "Fixup kills for BB#" << MBB->getNumber() << '\n');
- std::set<unsigned> killedRegs;
+ BitVector killedRegs(TRI->getNumRegs());
BitVector ReservedRegs = TRI->getReservedRegs(MF);
StartBlockForKills(MBB);
// Examine all used registers and set/clear kill flag. When a
// register is used multiple times we only set the kill flag on
// the first use.
- killedRegs.clear();
+ killedRegs.reset();
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
MachineOperand &MO = MI->getOperand(i);
if (!MO.isReg() || !MO.isUse()) continue;
if ((Reg == 0) || ReservedRegs.test(Reg)) continue;
bool kill = false;
- if (killedRegs.find(Reg) == killedRegs.end()) {
+ if (!killedRegs.test(Reg)) {
kill = true;
// A register is not killed if any subregs are live...
for (const unsigned *Subreg = TRI->getSubRegisters(Reg);
DEBUG(MI->dump());
}
- killedRegs.insert(Reg);
+ killedRegs.set(Reg);
}
// Mark any used register (that is not using undef) and subregs as