lib/CodeGen/LiveRegMatrix.cpp

104 void LiveRegMatrix::assign(LiveInterval &VirtReg, unsigned PhysReg) {
105   LLVM_DEBUG(dbgs() << "assigning " << printReg(VirtReg.reg, TRI) << " to "
107   assert(!VRM->hasPhys(VirtReg.reg) && "Duplicate VirtReg assignment");
108   VRM->assignVirt2Phys(VirtReg.reg, PhysReg);
111       TRI, VirtReg, PhysReg, [&](unsigned Unit, const LiveRange &Range) {
113         Matrix[Unit].unify(VirtReg, Range);
121 void LiveRegMatrix::unassign(LiveInterval &VirtReg) {
122   Register PhysReg = VRM->getPhys(VirtReg.reg);
123   LLVM_DEBUG(dbgs() << "unassigning " << printReg(VirtReg.reg, TRI) << " from "
125   VRM->clearVirt(VirtReg.reg);
127   foreachUnit(TRI, VirtReg, PhysReg,
130                 Matrix[Unit].extract(VirtReg, Range);
146 bool LiveRegMatrix::checkRegMaskInterference(LiveInterval &VirtReg,
151   if (RegMaskVirtReg != VirtReg.reg || RegMaskTag != UserTag) {
152     RegMaskVirtReg = VirtReg.reg;
155     LIS->checkRegMaskInterference(VirtReg, RegMaskUsable);
164 bool LiveRegMatrix::checkRegUnitInterference(LiveInterval &VirtReg,
166   if (VirtReg.empty())
168   CoalescerPair CP(VirtReg.reg, PhysReg, *TRI);
170   bool Result = foreachUnit(TRI, VirtReg, PhysReg, [&](unsigned Unit,
186 LiveRegMatrix::checkInterference(LiveInterval &VirtReg, unsigned PhysReg) {
187   if (VirtReg.empty())
191   if (checkRegMaskInterference(VirtReg, PhysReg))
195   if (checkRegUnitInterference(VirtReg, PhysReg))
199   bool Interference = foreachUnit(TRI, VirtReg, PhysReg,