const TargetRegisterClass*
X86RegisterInfo::getLargestLegalSuperClass(const TargetRegisterClass *RC) const{
// Don't allow super-classes of GR8_NOREX. This class is only used after
- // extrating sub_8bit_hi sub-registers. The H sub-registers cannot be copied
+ // extracting sub_8bit_hi sub-registers. The H sub-registers cannot be copied
// to the full GR8 register class in 64-bit mode, so we cannot allow the
// reigster class inflation.
//
return TFI->hasFP(MF) ? FramePtr : StackPtr;
}
+unsigned X86RegisterInfo::getPtrSizedFrameRegister(
+ const MachineFunction &MF) const {
+ unsigned FrameReg = getFrameRegister(MF);
+ if (Subtarget.isTarget64BitILP32())
+ FrameReg = getX86SubSuperRegister(FrameReg, MVT::i32, false);
+ return FrameReg;
+}
+
namespace llvm {
unsigned getX86SubSuperRegister(unsigned Reg, MVT::SimpleValueType VT,
bool High) {