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

llvm-svn: 304839

1 files changed, 27 insertions, 9 deletions

diff --git a/llvm/lib/CodeGen/BranchFolding.cpp b/llvm/lib/CodeGen/BranchFolding.cpp
index b84dd8f2ecd..53095497629 100644
--- a/llvm/lib/CodeGen/BranchFolding.cpp
+++ b/llvm/lib/CodeGen/BranchFolding.cpp
@@ -1,4 +1,4 @@
-//===-- BranchFolding.cpp - Fold machine code branch instructions ---------===//
+//===- BranchFolding.cpp - Fold machine code branch instructions ----------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -18,30 +18,46 @@
 //===----------------------------------------------------------------------===//
 
 #include "BranchFolding.h"
-#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/BitVector.h"
+#include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallSet.h"
+#include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/CodeGen/Analysis.h"
+#include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineBlockFrequencyInfo.h"
 #include "llvm/CodeGen/MachineBranchProbabilityInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/CodeGen/MachineJumpTableInfo.h"
 #include "llvm/CodeGen/MachineLoopInfo.h"
-#include "llvm/CodeGen/MachineMemOperand.h"
 #include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/CodeGen/MachineOperand.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/CodeGen/Passes.h"
 #include "llvm/CodeGen/TargetPassConfig.h"
 #include "llvm/IR/DebugInfoMetadata.h"
+#include "llvm/IR/DebugLoc.h"
 #include "llvm/IR/Function.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/Pass.h"
+#include "llvm/Support/BlockFrequency.h"
+#include "llvm/Support/BranchProbability.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Target/TargetSubtargetInfo.h"
-#include <algorithm>
+#include <cassert>
+#include <cstddef>
+#include <iterator>
+#include <numeric>
+#include <vector>
+
 using namespace llvm;
 
 #define DEBUG_TYPE "branch-folder"
@@ -69,10 +85,12 @@ TailMergeSize("tail-merge-size",
                               cl::init(3), cl::Hidden);
 
 namespace {
+
   /// BranchFolderPass - Wrap branch folder in a machine function pass.
   class BranchFolderPass : public MachineFunctionPass {
   public:
     static char ID;
+
     explicit BranchFolderPass(): MachineFunctionPass(ID) {}
 
     bool runOnMachineFunction(MachineFunction &MF) override;
@@ -84,7 +102,8 @@ namespace {
       MachineFunctionPass::getAnalysisUsage(AU);
     }
   };
-}
+
+} // end anonymous namespace
 
 char BranchFolderPass::ID = 0;
 char &llvm::BranchFolderPassID = BranchFolderPass::ID;
@@ -368,7 +387,7 @@ MachineBasicBlock *BranchFolder::SplitMBBAt(MachineBasicBlock &CurMBB,
 
   // Create the fall-through block.
   MachineFunction::iterator MBBI = CurMBB.getIterator();
-  MachineBasicBlock *NewMBB =MF.CreateMachineBasicBlock(BB);
+  MachineBasicBlock *NewMBB = MF.CreateMachineBasicBlock(BB);
   CurMBB.getParent()->insert(++MBBI, NewMBB);
 
   // Move all the successors of this block to the specified block.
@@ -506,7 +525,7 @@ static unsigned CountTerminators(MachineBasicBlock *MBB,
                                  MachineBasicBlock::iterator &I) {
   I = MBB->end();
   unsigned NumTerms = 0;
-  for (;;) {
+  while (true) {
     if (I == MBB->begin()) {
       I = MBB->end();
       break;
@@ -1601,7 +1620,6 @@ ReoptimizeBlock:
   // block doesn't fall through into some other block, see if we can find a
   // place to move this block where a fall-through will happen.
   if (!PrevBB.canFallThrough()) {
-
     // Now we know that there was no fall-through into this block, check to
     // see if it has a fall-through into its successor.
     bool CurFallsThru = MBB->canFallThrough();