[AArch64, Lanai] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291197 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 6 deletions

diff --git a/lib/Target/Lanai/LanaiRegisterInfo.h b/lib/Target/Lanai/LanaiRegisterInfo.h
index 8b84bbc460e..c6e459076eb 100644
--- a/lib/Target/Lanai/LanaiRegisterInfo.h
+++ b/lib/Target/Lanai/LanaiRegisterInfo.h
@@ -21,9 +21,6 @@
 
 namespace llvm {
 
-class TargetInstrInfo;
-class Type;
-
 struct LanaiRegisterInfo : public LanaiGenRegisterInfo {
   LanaiRegisterInfo();
 
@@ -32,7 +29,7 @@ struct LanaiRegisterInfo : public LanaiGenRegisterInfo {
 
   // Code Generation virtual methods.
   const uint16_t *
-  getCalleeSavedRegs(const MachineFunction *MF = 0) const override;
+  getCalleeSavedRegs(const MachineFunction *MF = nullptr) const override;
 
   BitVector getReservedRegs(const MachineFunction &MF) const override;
 
@@ -42,7 +39,7 @@ struct LanaiRegisterInfo : public LanaiGenRegisterInfo {
 
   void eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj,
                            unsigned FIOperandNum,
-                           RegScavenger *RS = NULL) const override;
+                           RegScavenger *RS = nullptr) const override;
 
   bool canRealignStack(const MachineFunction &MF) const override;
 
@@ -58,6 +55,6 @@ struct LanaiRegisterInfo : public LanaiGenRegisterInfo {
   int getDwarfRegNum(unsigned RegNum, bool IsEH) const;
 };
 
-} // namespace llvm
+} // end namespace llvm
 
 #endif // LLVM_LIB_TARGET_LANAI_LANAIREGISTERINFO_H