#include "RegisterCoalescer.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/LiveIntervalAnalysis.h"
-#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/VirtRegMap.h"
#include "llvm/Support/Debug.h"
-#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetRegisterInfo.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
using namespace llvm;
bool LiveRegMatrix::runOnMachineFunction(MachineFunction &MF) {
TRI = MF.getSubtarget().getRegisterInfo();
- MRI = &MF.getRegInfo();
LIS = &getAnalysis<LiveIntervals>();
VRM = &getAnalysis<VirtRegMap>();
if (VRegInterval.hasSubRanges()) {
for (MCRegUnitMaskIterator Units(PhysReg, TRI); Units.isValid(); ++Units) {
unsigned Unit = (*Units).first;
- unsigned Mask = (*Units).second;
+ LaneBitmask Mask = (*Units).second;
for (LiveInterval::SubRange &S : VRegInterval.subranges()) {
if (S.LaneMask & Mask) {
if (Func(Unit, S))
<< " to " << PrintReg(PhysReg, TRI) << ':');
assert(!VRM->hasPhys(VirtReg.reg) && "Duplicate VirtReg assignment");
VRM->assignVirt2Phys(VirtReg.reg, PhysReg);
- MRI->setPhysRegUsed(PhysReg);
foreachUnit(TRI, VirtReg, PhysReg, [&](unsigned Unit,
const LiveRange &Range) {
DEBUG(dbgs() << '\n');
}
+bool LiveRegMatrix::isPhysRegUsed(unsigned PhysReg) const {
+ for (MCRegUnitIterator Unit(PhysReg, TRI); Unit.isValid(); ++Unit) {
+ if (!Matrix[*Unit].empty())
+ return true;
+ }
+ return false;
+}
+
bool LiveRegMatrix::checkRegMaskInterference(LiveInterval &VirtReg,
unsigned PhysReg) {
// Check if the cached information is valid.