-
-bool ARMInstrInfo::BlockHasNoFallThrough(const MachineBasicBlock &MBB) const {
- if (MBB.empty()) return false;
-
- switch (MBB.back().getOpcode()) {
- case ARM::BX_RET: // Return.
- case ARM::LDM_RET:
- case ARM::B:
- case ARM::BRIND:
- case ARM::BR_JTr: // Jumptable branch.
- case ARM::BR_JTm: // Jumptable branch through mem.
- case ARM::BR_JTadd: // Jumptable branch add to pc.
- return true;
- default:
- break;
- }
-
- return false;
-}
-
-void ARMInstrInfo::
-reMaterialize(MachineBasicBlock &MBB,
- MachineBasicBlock::iterator I,
- unsigned DestReg, unsigned SubIdx,
- const MachineInstr *Orig) const {
- DebugLoc dl = Orig->getDebugLoc();
- if (Orig->getOpcode() == ARM::MOVi2pieces) {
- RI.emitLoadConstPool(MBB, I, dl,
- DestReg, SubIdx,
- Orig->getOperand(1).getImm(),
- (ARMCC::CondCodes)Orig->getOperand(2).getImm(),
- Orig->getOperand(3).getReg());
- return;
- }
-
- MachineInstr *MI = MBB.getParent()->CloneMachineInstr(Orig);
- MI->getOperand(0).setReg(DestReg);
- MBB.insert(I, MI);
-}
-