[CodeGen] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

llvm-svn: 304495

1 files changed, 25 insertions, 21 deletions

diff --git a/llvm/lib/CodeGen/MachineRegionInfo.cpp b/llvm/lib/CodeGen/MachineRegionInfo.cpp
index 71ad4e6aa7f..2402ffdbbcb 100644
--- a/llvm/lib/CodeGen/MachineRegionInfo.cpp
+++ b/llvm/lib/CodeGen/MachineRegionInfo.cpp
@@ -1,7 +1,19 @@
-#include "llvm/CodeGen/MachineRegionInfo.h"
+//===- lib/Codegen/MachineRegionInfo.cpp ----------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/RegionInfoImpl.h"
 #include "llvm/CodeGen/MachinePostDominators.h"
+#include "llvm/CodeGen/MachineRegionInfo.h"
+#include "llvm/Pass.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Debug.h"
 
 #define DEBUG_TYPE "machine-region-info"
 
@@ -11,36 +23,29 @@ STATISTIC(numMachineRegions,       "The # of machine regions");
 STATISTIC(numMachineSimpleRegions, "The # of simple machine regions");
 
 namespace llvm {
+
 template class RegionBase<RegionTraits<MachineFunction>>;
 template class RegionNodeBase<RegionTraits<MachineFunction>>;
 template class RegionInfoBase<RegionTraits<MachineFunction>>;
-}
+
+} // end namespace llvm
 
 //===----------------------------------------------------------------------===//
 // MachineRegion implementation
-//
 
 MachineRegion::MachineRegion(MachineBasicBlock *Entry, MachineBasicBlock *Exit,
                              MachineRegionInfo* RI,
                              MachineDominatorTree *DT, MachineRegion *Parent) :
-  RegionBase<RegionTraits<MachineFunction>>(Entry, Exit, RI, DT, Parent) {
+  RegionBase<RegionTraits<MachineFunction>>(Entry, Exit, RI, DT, Parent) {}
 
-}
-
-MachineRegion::~MachineRegion() { }
+MachineRegion::~MachineRegion() = default;
 
 //===----------------------------------------------------------------------===//
 // MachineRegionInfo implementation
-//
-
-MachineRegionInfo::MachineRegionInfo() :
-  RegionInfoBase<RegionTraits<MachineFunction>>() {
-
-}
 
-MachineRegionInfo::~MachineRegionInfo() {
+MachineRegionInfo::MachineRegionInfo() = default;
 
-}
+MachineRegionInfo::~MachineRegionInfo() = default;
 
 void MachineRegionInfo::updateStatistics(MachineRegion *R) {
   ++numMachineRegions;
@@ -73,9 +78,7 @@ MachineRegionInfoPass::MachineRegionInfoPass() : MachineFunctionPass(ID) {
   initializeMachineRegionInfoPassPass(*PassRegistry::getPassRegistry());
 }
 
-MachineRegionInfoPass::~MachineRegionInfoPass() {
-
-}
+MachineRegionInfoPass::~MachineRegionInfoPass() = default;
 
 bool MachineRegionInfoPass::runOnMachineFunction(MachineFunction &F) {
   releaseMemory();
@@ -137,8 +140,9 @@ INITIALIZE_PASS_END(MachineRegionInfoPass, DEBUG_TYPE,
 // the link time optimization.
 
 namespace llvm {
-  FunctionPass *createMachineRegionInfoPass() {
-    return new MachineRegionInfoPass();
-  }
+
+FunctionPass *createMachineRegionInfoPass() {
+  return new MachineRegionInfoPass();
 }
 
+} // end namespace llvm