-//===- SparcFrameLowering.h - Define frame lowering for Sparc --*- C++ -*--===//
+//===-- SparcFrameLowering.h - Define frame lowering for Sparc --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
#define SPARC_FRAMEINFO_H
#include "Sparc.h"
-#include "SparcSubtarget.h"
#include "llvm/Target/TargetFrameLowering.h"
namespace llvm {
- class SparcSubtarget;
+class SparcSubtarget;
class SparcFrameLowering : public TargetFrameLowering {
- const SparcSubtarget &STI;
public:
- explicit SparcFrameLowering(const SparcSubtarget &sti)
- : TargetFrameLowering(TargetFrameLowering::StackGrowsDown, 8, 0), STI(sti) {
- }
+ explicit SparcFrameLowering(const SparcSubtarget &ST);
/// emitProlog/emitEpilog - These methods insert prolog and epilog code into
/// the function.
- void emitPrologue(MachineFunction &MF) const;
- void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
+ void emitPrologue(MachineFunction &MF) const override;
+ void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
+
+ void
+ eliminateCallFramePseudoInstr(MachineFunction &MF,
+ MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator I) const override;
+
+ bool hasReservedCallFrame(const MachineFunction &MF) const override;
+ bool hasFP(const MachineFunction &MF) const override;
+ void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
+ RegScavenger *RS = nullptr) const override;
+
+private:
+ // Remap input registers to output registers for leaf procedure.
+ void remapRegsForLeafProc(MachineFunction &MF) const;
+
+ // Returns true if MF is a leaf procedure.
+ bool isLeafProc(MachineFunction &MF) const;
+
+
+ // Emits code for adjusting SP in function prologue/epilogue.
+ void emitSPAdjustment(MachineFunction &MF,
+ MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MBBI,
+ int NumBytes, unsigned ADDrr, unsigned ADDri) const;
- bool hasFP(const MachineFunction &MF) const { return false; }
};
} // End llvm namespace