-//===- ARMBaseRegisterInfo.h - ARM Register Information Impl ----*- C++ -*-===//
+//===-- ARMBaseRegisterInfo.h - ARM Register Information Impl ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
#include "ARM.h"
#include "llvm/Target/TargetRegisterInfo.h"
-#include "ARMGenRegisterInfo.h.inc"
+
+#define GET_REGINFO_HEADER
+#include "ARMGenRegisterInfo.inc"
namespace llvm {
class ARMSubtarget;
};
}
-/// isARMLowRegister - Returns true if the register is low register r0-r7.
-///
-static inline bool isARMLowRegister(unsigned Reg) {
- using namespace ARM;
- switch (Reg) {
- case R0: case R1: case R2: case R3:
- case R4: case R5: case R6: case R7:
- return true;
- default:
- return false;
- }
-}
-
/// isARMArea1Register - Returns true if the register is a low register (r0-r7)
/// or a stack/pc register that we should push/pop.
-static inline bool isARMArea1Register(unsigned Reg, bool isDarwin) {
+static inline bool isARMArea1Register(unsigned Reg, bool isIOS) {
using namespace ARM;
switch (Reg) {
case R0: case R1: case R2: case R3:
case LR: case SP: case PC:
return true;
case R8: case R9: case R10: case R11:
- // For darwin we want r7 and lr to be next to each other.
- return !isDarwin;
+ // For iOS we want r7 and lr to be next to each other.
+ return !isIOS;
default:
return false;
}
}
-static inline bool isARMArea2Register(unsigned Reg, bool isDarwin) {
+static inline bool isARMArea2Register(unsigned Reg, bool isIOS) {
using namespace ARM;
switch (Reg) {
case R8: case R9: case R10: case R11:
- // Darwin has this second area.
- return isDarwin;
+ // iOS has this second area.
+ return isIOS;
default:
return false;
}
}
-static inline bool isARMArea3Register(unsigned Reg, bool isDarwin) {
+static inline bool isARMArea3Register(unsigned Reg, bool isIOS) {
using namespace ARM;
switch (Reg) {
case D15: case D14: case D13: case D12:
public:
/// Code Generation virtual methods...
- const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
+ const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
+ const uint32_t *getCallPreservedMask(CallingConv::ID) const;
+ const uint32_t *getNoPreservedMask() const;
BitVector getReservedRegs(const MachineFunction &MF) const;
- /// getMatchingSuperRegClass - Return a subclass of the specified register
- /// class A so that each register in it has a sub-register of the
- /// specified sub-register index which is in the specified register class B.
- virtual const TargetRegisterClass *
- getMatchingSuperRegClass(const TargetRegisterClass *A,
- const TargetRegisterClass *B, unsigned Idx) const;
-
- /// canCombineSubRegIndices - Given a register class and a list of
- /// subregister indices, return true if it's possible to combine the
- /// subregister indices into one that corresponds to a larger
- /// subregister. Return the new subregister index by reference. Note the
- /// new index may be zero if the given subregisters can be combined to
- /// form the whole register.
- virtual bool canCombineSubRegIndices(const TargetRegisterClass *RC,
- SmallVectorImpl<unsigned> &SubIndices,
- unsigned &NewSubIdx) const;
-
- const TargetRegisterClass *getPointerRegClass(unsigned Kind = 0) const;
-
- std::pair<TargetRegisterClass::iterator,TargetRegisterClass::iterator>
- getAllocationOrder(const TargetRegisterClass *RC,
- unsigned HintType, unsigned HintReg,
- const MachineFunction &MF) const;
-
- unsigned ResolveRegAllocHint(unsigned Type, unsigned Reg,
- const MachineFunction &MF) const;
+ const TargetRegisterClass*
+ getPointerRegClass(const MachineFunction &MF, unsigned Kind = 0) const;
+ const TargetRegisterClass*
+ getCrossCopyRegClass(const TargetRegisterClass *RC) const;
+
+ const TargetRegisterClass*
+ getLargestLegalSuperClass(const TargetRegisterClass *RC) const;
+
+ unsigned getRegPressureLimit(const TargetRegisterClass *RC,
+ MachineFunction &MF) const;
+
+ void getRegAllocationHints(unsigned VirtReg,
+ ArrayRef<MCPhysReg> Order,
+ SmallVectorImpl<MCPhysReg> &Hints,
+ const MachineFunction &MF,
+ const VirtRegMap *VRM) const;
void UpdateRegAllocHint(unsigned Reg, unsigned NewReg,
MachineFunction &MF) const;
+ virtual bool avoidWriteAfterWrite(const TargetRegisterClass *RC) const;
+
bool hasBasePointer(const MachineFunction &MF) const;
bool canRealignStack(const MachineFunction &MF) const;
bool cannotEliminateFrame(const MachineFunction &MF) const;
// Debug information queries.
- unsigned getRARegister() const;
unsigned getFrameRegister(const MachineFunction &MF) const;
unsigned getBaseRegister() const { return BasePtr; }
unsigned getEHExceptionRegister() const;
unsigned getEHHandlerRegister() const;
- int getDwarfRegNum(unsigned RegNum, bool isEH) const;
-
bool isLowRegister(unsigned Reg) const;
unsigned MIFlags = MachineInstr::NoFlags)const;
/// Code Generation virtual methods...
- virtual bool isReservedReg(const MachineFunction &MF, unsigned Reg) const;
-
virtual bool requiresRegisterScavenging(const MachineFunction &MF) const;
+ virtual bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const;
+
virtual bool requiresFrameIndexScavenging(const MachineFunction &MF) const;
virtual bool requiresVirtualBaseRegisters(const MachineFunction &MF) const;
virtual void eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj, RegScavenger *RS = NULL) const;
-
-private:
- unsigned getRegisterPairEven(unsigned Reg, const MachineFunction &MF) const;
-
- unsigned getRegisterPairOdd(unsigned Reg, const MachineFunction &MF) const;
};
} // end namespace llvm