/// Live interval pointers for all the virtual registers.
IndexedMap<LiveInterval*, VirtReg2IndexFunctor> VirtRegIntervals;
- /// AllocatableRegs - A bit vector of allocatable registers.
- BitVector AllocatableRegs;
-
- /// ReservedRegs - A bit vector of reserved registers.
- BitVector ReservedRegs;
-
/// RegMaskSlots - Sorted list of instructions with register mask operands.
/// Always use the 'r' slot, RegMasks are normal clobbers, not early
/// clobbers.
return VirtRegIntervals.inBounds(Reg) && VirtRegIntervals[Reg];
}
- /// isAllocatable - is the physical register reg allocatable in the current
- /// function?
- bool isAllocatable(unsigned reg) const {
- return AllocatableRegs.test(reg);
- }
-
- /// isReserved - is the physical register reg reserved in the current
- /// function
- bool isReserved(unsigned reg) const {
- return ReservedRegs.test(reg);
- }
-
// Interval creation.
LiveInterval &getOrCreateInterval(unsigned Reg) {
if (!hasInterval(Reg)) {
/// instruction 'mi' has been moved within a basic block. This will update
/// the live intervals for all operands of mi. Moves between basic blocks
/// are not supported.
- void handleMove(MachineInstr* MI);
+ ///
+ /// \param UpdateFlags Update live intervals for nonallocatable physregs.
+ void handleMove(MachineInstr* MI, bool UpdateFlags = false);
/// moveIntoBundle - Update intervals for operands of MI so that they
/// begin/end on the SlotIndex for BundleStart.
///
+ /// \param UpdateFlags Update live intervals for nonallocatable physregs.
+ ///
/// Requires MI and BundleStart to have SlotIndexes, and assumes
/// existing liveness is accurate. BundleStart should be the first
/// instruction in the Bundle.
- void handleMoveIntoBundle(MachineInstr* MI, MachineInstr* BundleStart);
+ void handleMoveIntoBundle(MachineInstr* MI, MachineInstr* BundleStart,
+ bool UpdateFlags = false);
// Register mask functions.
//