#include "llvm/CodeGen/RegisterClassInfo.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/Target/TargetMachine.h"
using namespace llvm;
}
}
-#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+LLVM_DUMP_METHOD
void llvm::dumpRegSetPressure(ArrayRef<unsigned> SetPressure,
const TargetRegisterInfo *TRI) {
bool Empty = true;
dbgs() << "\n";
}
+LLVM_DUMP_METHOD
void RegisterPressure::dump(const TargetRegisterInfo *TRI) const {
dbgs() << "Max Pressure: ";
dumpRegSetPressure(MaxSetPressure, TRI);
dbgs() << '\n';
}
+LLVM_DUMP_METHOD
void RegPressureTracker::dump() const {
if (!isTopClosed() || !isBottomClosed()) {
dbgs() << "Curr Pressure: ";
}
P.dump(TRI);
}
-#endif
/// Increase the current pressure as impacted by these registers and bump
/// the high water mark if needed.
}
void RegPressureTracker::reset() {
- MBB = 0;
- LIS = 0;
+ MBB = nullptr;
+ LIS = nullptr;
CurrSetPressure.clear();
LiveThruPressure.clear();
reset();
MF = mf;
- TRI = MF->getTarget().getRegisterInfo();
+ TRI = MF->getSubtarget().getRegisterInfo();
RCI = rci;
MRI = &MF->getRegInfo();
MBB = mbb;
DeadDef = LRQ.isDeadDef();
}
}
- if (!DeadDef) {
+ if (DeadDef) {
+ // LiveIntervals knows this is a dead even though it's MachineOperand is
+ // not flagged as such. Since this register will not be recorded as
+ // live-out, increase its PDiff value to avoid underflowing pressure.
+ if (PDiff)
+ PDiff->addPressureChange(Reg, false, MRI);
+ } else {
if (LiveRegs.erase(Reg))
decreaseRegPressure(Reg);
else
SlotIndex PriorUseIdx, SlotIndex NextUseIdx,
const MachineRegisterInfo *MRI,
const LiveIntervals *LIS) {
- for (MachineRegisterInfo::use_nodbg_iterator
- UI = MRI->use_nodbg_begin(Reg), UE = MRI->use_nodbg_end();
- UI != UE; UI.skipInstruction()) {
+ for (MachineRegisterInfo::use_instr_nodbg_iterator
+ UI = MRI->use_instr_nodbg_begin(Reg),
+ UE = MRI->use_instr_nodbg_end(); UI != UE; ++UI) {
const MachineInstr* MI = &*UI;
if (MI->isDebugValue())
continue;