[C++] Use 'nullptr'.

[oota-llvm.git] / lib / Target / ARM64 / ARM64RegisterInfo.h

diff --git a/lib/Target/ARM64/ARM64RegisterInfo.h b/lib/Target/ARM64/ARM64RegisterInfo.h
index 78265f743457708eae4da5611d28951dab875164..5743e35cfe914ceec6b7f3dbd37bca8f1e430710 100644 (file)
--- a/lib/Target/ARM64/ARM64RegisterInfo.h
+++ b/lib/Target/ARM64/ARM64RegisterInfo.h
@@ -36,10 +36,17 @@ public:
   bool isReservedReg(const MachineFunction &MF, unsigned Reg) const;
 
   /// Code Generation virtual methods...
-  const uint16_t *
-  getCalleeSavedRegs(const MachineFunction *MF = 0) const override;
+  const MCPhysReg *
+  getCalleeSavedRegs(const MachineFunction *MF = nullptr) const override;
   const uint32_t *getCallPreservedMask(CallingConv::ID) const override;
 
+  unsigned getCSRFirstUseCost() const {
+    // The cost will be compared against BlockFrequency where entry has the
+    // value of 1 << 14. A value of 5 will choose to spill or split really
+    // cold path instead of using a callee-saved register.
+    return 5;
+  }
+
   // Calls involved in thread-local variable lookup save more registers than
   // normal calls, so they need a different mask to represent this.
   const uint32_t *getTLSCallPreservedMask() const;
@@ -71,11 +78,11 @@ public:
   void materializeFrameBaseRegister(MachineBasicBlock *MBB, unsigned BaseReg,
                                     int FrameIdx,
                                     int64_t Offset) const override;
-  void resolveFrameIndex(MachineBasicBlock::iterator I, unsigned BaseReg,
+  void resolveFrameIndex(MachineInstr &MI, unsigned BaseReg,
                          int64_t Offset) const override;
   void eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj,
                            unsigned FIOperandNum,
-                           RegScavenger *RS = NULL) const override;
+                           RegScavenger *RS = nullptr) const override;
   bool cannotEliminateFrame(const MachineFunction &MF) const;
 
   bool requiresVirtualBaseRegisters(const MachineFunction &MF) const override;