// RegAllocBase Implementation
//===----------------------------------------------------------------------===//
+// Pin the vtable to this file.
+void RegAllocBase::anchor() {}
+
void RegAllocBase::init(VirtRegMap &vrm,
LiveIntervals &lis,
LiveRegMatrix &mat) {
// register if possible and populate a list of new live intervals that
// result from splitting.
DEBUG(dbgs() << "\nselectOrSplit "
- << MRI->getRegClass(VirtReg->reg)->getName()
- << ':' << PrintReg(VirtReg->reg) << ' ' << *VirtReg << '\n');
- typedef SmallVector<LiveInterval*, 4> VirtRegVec;
+ << MRI->getRegClass(VirtReg->reg)->getName()
+ << ':' << *VirtReg << " w=" << VirtReg->weight << '\n');
+ typedef SmallVector<unsigned, 4> VirtRegVec;
VirtRegVec SplitVRegs;
unsigned AvailablePhysReg = selectOrSplit(*VirtReg, SplitVRegs);
if (AvailablePhysReg == ~0u) {
// selectOrSplit failed to find a register!
- const char *Msg = "ran out of registers during register allocation";
// Probably caused by an inline asm.
MachineInstr *MI;
for (MachineRegisterInfo::reg_iterator I = MRI->reg_begin(VirtReg->reg);
if (MI->isInlineAsm())
break;
if (MI)
- MI->emitError(Msg);
+ MI->emitError("inline assembly requires more registers than available");
else
- report_fatal_error(Msg);
+ report_fatal_error("ran out of registers during register allocation");
// Keep going after reporting the error.
VRM->assignVirt2Phys(VirtReg->reg,
RegClassInfo.getOrder(MRI->getRegClass(VirtReg->reg)).front());
for (VirtRegVec::iterator I = SplitVRegs.begin(), E = SplitVRegs.end();
I != E; ++I) {
- LiveInterval *SplitVirtReg = *I;
+ LiveInterval *SplitVirtReg = &LIS->getInterval(*I);
assert(!VRM->hasPhys(SplitVirtReg->reg) && "Register already assigned");
if (MRI->reg_nodbg_empty(SplitVirtReg->reg)) {
DEBUG(dbgs() << "not queueing unused " << *SplitVirtReg << '\n');