Cleanup include: codegen second round

[serge-sans-paille]

Summary

Discourse thread: https://discourse.llvm.org/t/include-what-you-use-include-cleanup

before: 1077375193
after: 1077352626

[MaskRay]

The patch does not apply at HEAD. I think many files have got the cleanup.

[serge-sans-paille]

rebased on main

[RKSimon]

LGTM

[ronlieb]

seeing some buildbot failures ...
https://lab.llvm.org/buildbot/#/builders/165/builds/18307
https://lab.llvm.org/buildbot/#/builders/193/builds/9008

llvm/include/llvm/CodeGen/GlobalISel/CallLowering.h

 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_CODEGEN_GLOBALISEL_CALLLOWERING_H
 #define LLVM_CODEGEN_GLOBALISEL_CALLLOWERING_H
 
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/CodeGen/CallingConvLower.h"
-#include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineOperand.h"
 #include "llvm/CodeGen/TargetCallingConv.h"
-#include "llvm/IR/Attributes.h"
 #include "llvm/IR/CallingConv.h"
 #include "llvm/IR/Type.h"
 #include "llvm/IR/Value.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/MachineValueType.h"
 #include <cstdint>
 #include <functional>
 
 namespace llvm {
 
+class AttributeList;
 class CallBase;
 class DataLayout;
 class Function;
 class FunctionLoweringInfo;
 class MachineIRBuilder;
+class MachineFunction;
 struct MachinePointerInfo;
 class MachineRegisterInfo;
 class TargetLowering;
 
 class CallLowering {
   const TargetLowering *TLI;
 
   virtual void anchor();

llvm/include/llvm/CodeGen/GlobalISel/Legalizer.h

 //
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_CODEGEN_GLOBALISEL_LEGALIZER_H
 #define LLVM_CODEGEN_GLOBALISEL_LEGALIZER_H
 
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/StringRef.h"
-#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
-#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
 #include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 
 namespace llvm {
 
+class LegalizerInfo;
+class MachineIRBuilder;
+class MachineInstr;
+class GISelChangeObserver;
 class LostDebugLocObserver;
 
 class Legalizer : public MachineFunctionPass {
 public:
   static char ID;
 
   struct MFResult {
     bool Changed;

llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h

 //
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_CODEGEN_GLOBALISEL_LEGALIZERHELPER_H
 #define LLVM_CODEGEN_GLOBALISEL_LEGALIZERHELPER_H
 
 #include "llvm/CodeGen/GlobalISel/CallLowering.h"
 #include "llvm/CodeGen/RuntimeLibcalls.h"
+#include "llvm/CodeGen/TargetOpcodes.h"
 
 namespace llvm {
 // Forward declarations.
 class APInt;
 class GAnyLoad;
 class GLoadStore;
 class GStore;
 class GenericMachineInstr;

llvm/include/llvm/CodeGen/RegisterUsageInfo.h

 ///
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_CODEGEN_REGISTERUSAGEINFO_H
 #define LLVM_CODEGEN_REGISTERUSAGEINFO_H
 
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/CodeGen/RegisterUsageInfo.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/Pass.h"
 #include "llvm/PassRegistry.h"
 #include <cstdint>
 #include <vector>
 
 namespace llvm {
 

llvm/lib/CodeGen/GlobalISel/Legalizer.cpp

 //===-- llvm/CodeGen/GlobalISel/Legalizer.cpp -----------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
 /// \file This file implements the LegalizerHelper class to legalize individual
 /// instructions and the LegalizePass wrapper pass for the primary
 /// legalization.
 //
 //===----------------------------------------------------------------------===//
 
 #include "llvm/CodeGen/GlobalISel/Legalizer.h"
 #include "llvm/ADT/PostOrderIterator.h"
-#include "llvm/ADT/SetVector.h"
 #include "llvm/Analysis/OptimizationRemarkEmitter.h"
 #include "llvm/CodeGen/GlobalISel/CSEInfo.h"
 #include "llvm/CodeGen/GlobalISel/CSEMIRBuilder.h"
 #include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h"
 #include "llvm/CodeGen/GlobalISel/GISelWorkList.h"
 #include "llvm/CodeGen/GlobalISel/LegalizationArtifactCombiner.h"
 #include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
 #include "llvm/CodeGen/GlobalISel/LostDebugLocObserver.h"

llvm/lib/CodeGen/GlobalISel/Utils.cpp

 #include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
 #include "llvm/CodeGen/GlobalISel/LostDebugLocObserver.h"
 #include "llvm/CodeGen/GlobalISel/MIPatternMatch.h"
 #include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
 #include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineOptimizationRemarkEmitter.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/CodeGen/MachineSizeOpts.h"
 #include "llvm/CodeGen/RegisterBankInfo.h"
 #include "llvm/CodeGen/StackProtector.h"
 #include "llvm/CodeGen/TargetInstrInfo.h"
 #include "llvm/CodeGen/TargetLowering.h"
 #include "llvm/CodeGen/TargetPassConfig.h"
 #include "llvm/CodeGen/TargetRegisterInfo.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/Target/TargetMachine.h"

llvm/lib/CodeGen/MIRParser/MIRParser.cpp

 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Support/YAMLTraits.h"
 #include "llvm/Target/TargetMachine.h"
 #include <memory>
 
 using namespace llvm;
 
 namespace llvm {
-class DIExpression;
-class DILocalVariable;
-class DILocation;
 class MDNode;
 class RegisterBank;
 
 /// This class implements the parsing of LLVM IR that's embedded inside a MIR
 /// file.
 class MIRParserImpl {
   SourceMgr SM;
   LLVMContext &Context;

llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp

 #include "llvm/CodeGen/TargetLowering.h"
 #include "llvm/CodeGen/ValueTypes.h"
 #include "llvm/IR/DataLayout.h"
 #include "llvm/Support/Casting.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/MachineValueType.h"
-#include "llvm/Support/MathExtras.h"
 #include <cassert>
 #include <cstdint>
 #include <iterator>
 #include <utility>
 
 using namespace llvm;
 
 #define DEBUG_TYPE "legalizevectorops"

llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

 #include "llvm/Analysis/TargetLibraryInfo.h"
 #include "llvm/Analysis/ValueTracking.h"
 #include "llvm/CodeGen/Analysis.h"
 #include "llvm/CodeGen/FunctionLoweringInfo.h"
 #include "llvm/CodeGen/GCMetadata.h"
 #include "llvm/CodeGen/MachineBasicBlock.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineInstrBundleIterator.h"
 #include "llvm/CodeGen/MachineMemOperand.h"
 #include "llvm/CodeGen/MachineModuleInfo.h"
 #include "llvm/CodeGen/MachineOperand.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/RuntimeLibcalls.h"
 #include "llvm/CodeGen/SelectionDAG.h"
 #include "llvm/CodeGen/SelectionDAGTargetInfo.h"
 #include "llvm/CodeGen/StackMaps.h"