#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Compiler.h"
+#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallSet.h"
class VISIBILITY_HIDDEN ReuseInfo {
MachineInstr &MI;
std::vector<ReusedOp> Reuses;
- bool *PhysRegsClobbered;
+ BitVector PhysRegsClobbered;
public:
ReuseInfo(MachineInstr &mi, const MRegisterInfo *mri) : MI(mi) {
- PhysRegsClobbered = new bool[mri->getNumRegs()];
- std::fill(PhysRegsClobbered, PhysRegsClobbered+mri->getNumRegs(), false);
- }
- ~ReuseInfo() {
- delete[] PhysRegsClobbered;
+ PhysRegsClobbered.resize(mri->getNumRegs());
}
bool hasReuses() const {
}
void markClobbered(unsigned PhysReg) {
- PhysRegsClobbered[PhysReg] = true;
+ PhysRegsClobbered.set(PhysReg);
}
bool isClobbered(unsigned PhysReg) const {
- return PhysRegsClobbered[PhysReg];
+ return PhysRegsClobbered.test(PhysReg);
}
/// GetRegForReload - We are about to emit a reload into PhysReg. If there