return Reserved;
}
+const TargetRegisterClass*
+SystemZRegisterInfo::getMatchingSuperRegClass(const TargetRegisterClass *A,
+ const TargetRegisterClass *B,
+ unsigned Idx) const {
+ switch(Idx) {
+ // Exact sub-classes don't exist for the other sub-register indexes.
+ default: return 0;
+ case SystemZ::subreg_32bit:
+ if (B == SystemZ::ADDR32RegisterClass)
+ return A->getSize() == 8 ? SystemZ::ADDR64RegisterClass : 0;
+ return A;
+ }
+}
+
void SystemZRegisterInfo::
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const {
BitVector getReservedRegs(const MachineFunction &MF) const;
+ const TargetRegisterClass*
+ getMatchingSuperRegClass(const TargetRegisterClass *A,
+ const TargetRegisterClass *B, unsigned Idx) const;
+
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;