//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "early-ifcvt"
#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/PostOrderIterator.h"
#include "llvm/ADT/SetVector.h"
using namespace llvm;
+#define DEBUG_TYPE "early-ifcvt"
+
// Absolute maximum number of instructions allowed per speculated block.
// This bypasses all other heuristics, so it should be set fairly high.
static cl::opt<unsigned>
public:
/// runOnMachineFunction - Initialize per-function data structures.
void runOnMachineFunction(MachineFunction &MF) {
- TII = MF.getTarget().getInstrInfo();
- TRI = MF.getTarget().getRegisterInfo();
+ TII = MF.getSubtarget().getInstrInfo();
+ TRI = MF.getSubtarget().getRegisterInfo();
MRI = &MF.getRegInfo();
LiveRegUnits.clear();
LiveRegUnits.setUniverse(TRI->getNumRegUnits());
bool EarlyIfConverter::runOnMachineFunction(MachineFunction &MF) {
DEBUG(dbgs() << "********** EARLY IF-CONVERSION **********\n"
<< "********** Function: " << MF.getName() << '\n');
- TII = MF.getTarget().getInstrInfo();
- TRI = MF.getTarget().getRegisterInfo();
+ // Only run if conversion if the target wants it.
+ if (!MF.getTarget()
+ .getSubtarget<TargetSubtargetInfo>()
+ .enableEarlyIfConversion())
+ return false;
+
+ TII = MF.getSubtarget().getInstrInfo();
+ TRI = MF.getSubtarget().getRegisterInfo();
SchedModel =
MF.getTarget().getSubtarget<TargetSubtargetInfo>().getSchedModel();
MRI = &MF.getRegInfo();