return NewMI;
}
+bool PPCRegisterInfo::canFoldMemoryOperand(MachineInstr *MI,
+ SmallVectorImpl<unsigned> &Ops) const {
+ if (Ops.size() != 1) return NULL;
+
+ // Make sure this is a reg-reg copy. Note that we can't handle MCRF, because
+ // it takes more than one instruction to store it.
+ unsigned Opc = MI->getOpcode();
+
+ if ((Opc == PPC::OR &&
+ MI->getOperand(1).getReg() == MI->getOperand(2).getReg()))
+ return true;
+ else if ((Opc == PPC::OR8 &&
+ MI->getOperand(1).getReg() == MI->getOperand(2).getReg()))
+ return true;
+ else if (Opc == PPC::FMRD || Opc == PPC::FMRS)
+ return true;
+
+ return false;
+}
+
//===----------------------------------------------------------------------===//
// Stack Frame Processing methods
//===----------------------------------------------------------------------===//
return 0;
}
+ virtual bool canFoldMemoryOperand(MachineInstr *MI,
+ SmallVectorImpl<unsigned> &Ops) const;
+
const unsigned *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
const TargetRegisterClass* const*