return CSR_NoRegs_RegMask;
}
+const uint32_t *
+ARMBaseRegisterInfo::getTLSCallPreservedMask(const MachineFunction &MF) const {
+ assert(MF.getSubtarget<ARMSubtarget>().isTargetDarwin() &&
+ "only know about special TLS call on Darwin");
+ return CSR_iOS_TLSCall_RegMask;
+}
+
+
const uint32_t *
ARMBaseRegisterInfo::getThisReturnPreservedMask(const MachineFunction &MF,
CallingConv::ID CC) const {
ArrayRef<MCPhysReg> Order,
SmallVectorImpl<MCPhysReg> &Hints,
const MachineFunction &MF,
- const VirtRegMap *VRM) const {
+ const VirtRegMap *VRM,
+ const LiveRegMatrix *Matrix) const {
const MachineRegisterInfo &MRI = MF.getRegInfo();
std::pair<unsigned, unsigned> Hint = MRI.getRegAllocationHint(VirtReg);
// 1. Dynamic stack realignment is explicitly disabled,
// 2. This is a Thumb1 function (it's not useful, so we don't bother), or
// 3. There are VLAs in the function and the base pointer is disabled.
- if (MF.getFunction()->hasFnAttribute("no-realign-stack"))
+ if (!TargetRegisterInfo::canRealignStack(MF))
return false;
if (AFI->isThumb1OnlyFunction())
return false;
return MRI->canReserveReg(BasePtr);
}
-bool ARMBaseRegisterInfo::
-needsStackRealignment(const MachineFunction &MF) const {
- const MachineFrameInfo *MFI = MF.getFrameInfo();
- const ARMFrameLowering *TFI = getFrameLowering(MF);
- const Function *F = MF.getFunction();
- unsigned StackAlign = TFI->getStackAlignment();
- bool requiresRealignment = ((MFI->getMaxAlignment() > StackAlign) ||
- F->hasFnAttribute(Attribute::StackAlignment));
-
- return requiresRealignment && canRealignStack(MF);
-}
-
bool ARMBaseRegisterInfo::
cannotEliminateFrame(const MachineFunction &MF) const {
const MachineFrameInfo *MFI = MF.getFrameInfo();