void MipsSEInstrInfo::expandRetRA(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const {
+
+ MachineInstrBuilder MIB;
if (Subtarget.isGP64bit())
- BuildMI(MBB, I, I->getDebugLoc(), get(Mips::PseudoReturn64))
- .addReg(Mips::RA_64);
+ MIB = BuildMI(MBB, I, I->getDebugLoc(), get(Mips::PseudoReturn64))
+ .addReg(Mips::RA_64, RegState::Undef);
else
- BuildMI(MBB, I, I->getDebugLoc(), get(Mips::PseudoReturn)).addReg(Mips::RA);
+ MIB = BuildMI(MBB, I, I->getDebugLoc(), get(Mips::PseudoReturn))
+ .addReg(Mips::RA, RegState::Undef);
+
+ // Retain any imp-use flags.
+ for (auto & MO : I->operands()) {
+ if (MO.isImplicit())
+ MIB.add(MO);
+ }
}
void MipsSEInstrInfo::expandERet(MachineBasicBlock &MBB,