[llvm] c6f0940 - [NFC] Remove unnecessary #includes

Bill Wendling via llvm-commits llvm-commits at lists.llvm.org
Fri Feb 4 21:47:39 PST 2022 

Author: Bill Wendling
Date: 2022-02-04T21:22:41-08:00
New Revision: c6f0940d99644cd03cf6affb030205125b7cd0fb

URL: https://github.com/llvm/llvm-project/commit/c6f0940d99644cd03cf6affb030205125b7cd0fb
DIFF: https://github.com/llvm/llvm-project/commit/c6f0940d99644cd03cf6affb030205125b7cd0fb.diff

LOG: [NFC] Remove unnecessary #includes

An attempt to reduce the number of files that are recompiled due to a change.

Differential Revision: https://reviews.llvm.org/D119055

Added: 
    

Modified: 
    llvm/include/llvm/Analysis/AliasAnalysis.h
    llvm/include/llvm/Analysis/AliasAnalysisEvaluator.h
    llvm/include/llvm/Analysis/AliasSetTracker.h
    llvm/include/llvm/Analysis/AssumeBundleQueries.h
    llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
    llvm/include/llvm/Analysis/BranchProbabilityInfo.h
    llvm/include/llvm/Analysis/CFLAliasAnalysisUtils.h
    llvm/include/llvm/Analysis/CFLSteensAliasAnalysis.h
    llvm/include/llvm/Analysis/CGSCCPassManager.h
    llvm/include/llvm/Analysis/CallGraph.h
    llvm/include/llvm/Analysis/CmpInstAnalysis.h
    llvm/include/llvm/Analysis/ConstraintSystem.h
    llvm/include/llvm/Analysis/DivergenceAnalysis.h
    llvm/include/llvm/Analysis/DominanceFrontierImpl.h
    llvm/include/llvm/Analysis/EHPersonalities.h
    llvm/include/llvm/Analysis/GlobalsModRef.h
    llvm/include/llvm/Analysis/IRSimilarityIdentifier.h
    llvm/include/llvm/Analysis/IVDescriptors.h
    llvm/include/llvm/Analysis/InlineCost.h
    llvm/include/llvm/Analysis/InlineOrder.h
    llvm/include/llvm/Analysis/InstSimplifyFolder.h
    llvm/include/llvm/Analysis/InstructionSimplify.h
    llvm/include/llvm/Analysis/IntervalIterator.h
    llvm/include/llvm/Analysis/LazyCallGraph.h
    llvm/include/llvm/Analysis/LoopAnalysisManager.h
    llvm/include/llvm/Analysis/LoopCacheAnalysis.h
    llvm/include/llvm/Analysis/LoopInfo.h
    llvm/include/llvm/Analysis/LoopInfoImpl.h
    llvm/include/llvm/Analysis/LoopUnrollAnalyzer.h
    llvm/include/llvm/Analysis/MLModelRunner.h
    llvm/include/llvm/Analysis/MemoryLocation.h
    llvm/include/llvm/Analysis/MemorySSA.h
    llvm/include/llvm/Analysis/ModuleDebugInfoPrinter.h
    llvm/include/llvm/Analysis/MustExecute.h
    llvm/include/llvm/Analysis/OverflowInstAnalysis.h
    llvm/include/llvm/Analysis/PtrUseVisitor.h
    llvm/include/llvm/Analysis/RegionInfo.h
    llvm/include/llvm/Analysis/RegionInfoImpl.h
    llvm/include/llvm/Analysis/RegionIterator.h
    llvm/include/llvm/Analysis/RegionPass.h
    llvm/include/llvm/Analysis/ScalarEvolution.h
    llvm/include/llvm/Analysis/ScalarEvolutionAliasAnalysis.h
    llvm/include/llvm/Analysis/ScalarEvolutionExpressions.h
    llvm/include/llvm/Analysis/StackLifetime.h
    llvm/include/llvm/Analysis/SyncDependenceAnalysis.h
    llvm/include/llvm/Analysis/TargetFolder.h
    llvm/include/llvm/Analysis/TargetLibraryInfo.h
    llvm/include/llvm/Analysis/TargetTransformInfo.h
    llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
    llvm/include/llvm/Analysis/ValueLattice.h
    llvm/lib/Analysis/DependenceGraphBuilder.cpp
    llvm/lib/Analysis/LegacyDivergenceAnalysis.cpp
    llvm/lib/Analysis/MemorySSA.cpp
    llvm/lib/Analysis/RegionInfo.cpp
    llvm/lib/Analysis/RegionPass.cpp
    llvm/lib/Analysis/SyncDependenceAnalysis.cpp
    llvm/lib/Transforms/Utils/LCSSA.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/include/llvm/Analysis/AliasAnalysis.h b/llvm/include/llvm/Analysis/AliasAnalysis.h
index d4febe6c1db9f..c39883f8f91c1 100644
--- a/llvm/include/llvm/Analysis/AliasAnalysis.h
+++ b/llvm/include/llvm/Analysis/AliasAnalysis.h
@@ -38,7 +38,6 @@
 #define LLVM_ANALYSIS_ALIASANALYSIS_H
 
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/None.h"
 #include "llvm/ADT/Optional.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Analysis/MemoryLocation.h"

diff  --git a/llvm/include/llvm/Analysis/AliasAnalysisEvaluator.h b/llvm/include/llvm/Analysis/AliasAnalysisEvaluator.h
index 2dd2e7ca916dc..48181cc52626d 100644
--- a/llvm/include/llvm/Analysis/AliasAnalysisEvaluator.h
+++ b/llvm/include/llvm/Analysis/AliasAnalysisEvaluator.h
@@ -24,12 +24,12 @@
 #ifndef LLVM_ANALYSIS_ALIASANALYSISEVALUATOR_H
 #define LLVM_ANALYSIS_ALIASANALYSISEVALUATOR_H
 
-#include "llvm/IR/Function.h"
 #include "llvm/IR/PassManager.h"
-#include "llvm/Pass.h"
 
 namespace llvm {
 class AAResults;
+class Function;
+class FunctionPass;
 
 class AAEvaluator : public PassInfoMixin<AAEvaluator> {
   int64_t FunctionCount = 0;

diff  --git a/llvm/include/llvm/Analysis/AliasSetTracker.h b/llvm/include/llvm/Analysis/AliasSetTracker.h
index b66ff395454d8..5d9a22050010d 100644
--- a/llvm/include/llvm/Analysis/AliasSetTracker.h
+++ b/llvm/include/llvm/Analysis/AliasSetTracker.h
@@ -22,10 +22,8 @@
 #include "llvm/ADT/ilist_node.h"
 #include "llvm/Analysis/MemoryLocation.h"
 #include "llvm/IR/Instruction.h"
-#include "llvm/IR/Metadata.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/IR/ValueHandle.h"
-#include "llvm/Support/Casting.h"
 #include <cassert>
 #include <cstddef>
 #include <cstdint>

diff  --git a/llvm/include/llvm/Analysis/AssumeBundleQueries.h b/llvm/include/llvm/Analysis/AssumeBundleQueries.h
index 77da191102466..413edb8a05d17 100644
--- a/llvm/include/llvm/Analysis/AssumeBundleQueries.h
+++ b/llvm/include/llvm/Analysis/AssumeBundleQueries.h
@@ -14,10 +14,9 @@
 #ifndef LLVM_ANALYSIS_ASSUMEBUNDLEQUERIES_H
 #define LLVM_ANALYSIS_ASSUMEBUNDLEQUERIES_H
 
-#include "llvm/IR/Attributes.h"
+#include "llvm/ADT/DenseMap.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/IntrinsicInst.h"
-#include "llvm/ADT/DenseMap.h"
 
 namespace llvm {
 class AssumptionCache;

diff  --git a/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h b/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
index 858dd369dd0b8..dc884eddba732 100644
--- a/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
+++ b/llvm/include/llvm/Analysis/BlockFrequencyInfoImpl.h
@@ -31,7 +31,6 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/DOTGraphTraits.h"
 #include "llvm/Support/Debug.h"
-#include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/ScaledNumber.h"
 #include "llvm/Support/raw_ostream.h"

diff  --git a/llvm/include/llvm/Analysis/BranchProbabilityInfo.h b/llvm/include/llvm/Analysis/BranchProbabilityInfo.h
index e2099eba0f65b..28418198aceaa 100644
--- a/llvm/include/llvm/Analysis/BranchProbabilityInfo.h
+++ b/llvm/include/llvm/Analysis/BranchProbabilityInfo.h
@@ -16,14 +16,12 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/DenseMapInfo.h"
 #include "llvm/ADT/DenseSet.h"
-#include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/IR/BasicBlock.h"
 #include "llvm/IR/CFG.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/IR/ValueHandle.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/BranchProbability.h"
-#include "llvm/Support/Casting.h"
 #include <algorithm>
 #include <cassert>
 #include <cstdint>

diff  --git a/llvm/include/llvm/Analysis/CFLAliasAnalysisUtils.h b/llvm/include/llvm/Analysis/CFLAliasAnalysisUtils.h
index 2eae2824bec3c..6d6f2528f54ce 100644
--- a/llvm/include/llvm/Analysis/CFLAliasAnalysisUtils.h
+++ b/llvm/include/llvm/Analysis/CFLAliasAnalysisUtils.h
@@ -14,10 +14,11 @@
 #ifndef LLVM_ANALYSIS_CFLALIASANALYSISUTILS_H
 #define LLVM_ANALYSIS_CFLALIASANALYSISUTILS_H
 
-#include "llvm/IR/Function.h"
 #include "llvm/IR/ValueHandle.h"
 
 namespace llvm {
+class Function;
+
 namespace cflaa {
 
 template <typename AAResult> struct FunctionHandle final : public CallbackVH {

diff  --git a/llvm/include/llvm/Analysis/CFLSteensAliasAnalysis.h b/llvm/include/llvm/Analysis/CFLSteensAliasAnalysis.h
index ec05b3706ca32..82616daa189a8 100644
--- a/llvm/include/llvm/Analysis/CFLSteensAliasAnalysis.h
+++ b/llvm/include/llvm/Analysis/CFLSteensAliasAnalysis.h
@@ -21,7 +21,6 @@
 #include "llvm/Analysis/MemoryLocation.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/Pass.h"
-#include "llvm/Support/Casting.h"
 #include <forward_list>
 #include <memory>
 

diff  --git a/llvm/include/llvm/Analysis/CGSCCPassManager.h b/llvm/include/llvm/Analysis/CGSCCPassManager.h
index 7cf172dc1dd13..5dd2c93130b1e 100644
--- a/llvm/include/llvm/Analysis/CGSCCPassManager.h
+++ b/llvm/include/llvm/Analysis/CGSCCPassManager.h
@@ -88,19 +88,13 @@
 #ifndef LLVM_ANALYSIS_CGSCCPASSMANAGER_H
 #define LLVM_ANALYSIS_CGSCCPASSMANAGER_H
 
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/DenseSet.h"
 #include "llvm/ADT/MapVector.h"
 #include "llvm/ADT/PriorityWorklist.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/ADT/SmallVector.h"
 #include "llvm/Analysis/LazyCallGraph.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/InstIterator.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/IR/ValueHandle.h"
-#include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 #include <algorithm>
 #include <cassert>

diff  --git a/llvm/include/llvm/Analysis/CallGraph.h b/llvm/include/llvm/Analysis/CallGraph.h
index 4da448c9900b1..3062ebc11b025 100644
--- a/llvm/include/llvm/Analysis/CallGraph.h
+++ b/llvm/include/llvm/Analysis/CallGraph.h
@@ -46,8 +46,6 @@
 #define LLVM_ANALYSIS_CALLGRAPH_H
 
 #include "llvm/ADT/GraphTraits.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/IR/Function.h"
 #include "llvm/IR/InstrTypes.h"
 #include "llvm/IR/Intrinsics.h"
 #include "llvm/IR/PassManager.h"
@@ -62,6 +60,7 @@
 namespace llvm {
 
 class CallGraphNode;
+class Function;
 class Module;
 class raw_ostream;
 

diff  --git a/llvm/include/llvm/Analysis/CmpInstAnalysis.h b/llvm/include/llvm/Analysis/CmpInstAnalysis.h
index 3d34cd12aea47..2bb492d1c5a15 100644
--- a/llvm/include/llvm/Analysis/CmpInstAnalysis.h
+++ b/llvm/include/llvm/Analysis/CmpInstAnalysis.h
@@ -18,6 +18,7 @@
 
 namespace llvm {
   class ICmpInst;
+  class Type;
   class Value;
 
   /// Encode a icmp predicate into a three bit mask. These bits are carefully

diff  --git a/llvm/include/llvm/Analysis/ConstraintSystem.h b/llvm/include/llvm/Analysis/ConstraintSystem.h
index d7800f5783253..2ca1d5ca78a7e 100644
--- a/llvm/include/llvm/Analysis/ConstraintSystem.h
+++ b/llvm/include/llvm/Analysis/ConstraintSystem.h
@@ -11,7 +11,6 @@
 
 #include "llvm/ADT/APInt.h"
 #include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallVector.h"
 
 #include <string>

diff  --git a/llvm/include/llvm/Analysis/DivergenceAnalysis.h b/llvm/include/llvm/Analysis/DivergenceAnalysis.h
index c52b42ae8dc22..b35bab886f12e 100644
--- a/llvm/include/llvm/Analysis/DivergenceAnalysis.h
+++ b/llvm/include/llvm/Analysis/DivergenceAnalysis.h
@@ -18,15 +18,17 @@
 #include "llvm/ADT/DenseSet.h"
 #include "llvm/Analysis/SyncDependenceAnalysis.h"
 #include "llvm/IR/Function.h"
+#include "llvm/IR/PassManager.h"
 #include "llvm/Pass.h"
 #include <vector>
 
 namespace llvm {
-class Value;
+class Function;
 class Instruction;
 class Loop;
 class raw_ostream;
 class TargetTransformInfo;
+class Value;
 
 /// \brief Generic divergence analysis for reducible CFGs.
 ///

diff  --git a/llvm/include/llvm/Analysis/DominanceFrontierImpl.h b/llvm/include/llvm/Analysis/DominanceFrontierImpl.h
index aa764be93b913..7a5f8f31bae39 100644
--- a/llvm/include/llvm/Analysis/DominanceFrontierImpl.h
+++ b/llvm/include/llvm/Analysis/DominanceFrontierImpl.h
@@ -17,7 +17,6 @@
 #ifndef LLVM_ANALYSIS_DOMINANCEFRONTIERIMPL_H
 #define LLVM_ANALYSIS_DOMINANCEFRONTIERIMPL_H
 
-#include "llvm/ADT/GraphTraits.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/Analysis/DominanceFrontier.h"
 #include "llvm/Config/llvm-config.h"

diff  --git a/llvm/include/llvm/Analysis/EHPersonalities.h b/llvm/include/llvm/Analysis/EHPersonalities.h
index eaada66274947..660d431bb063e 100644
--- a/llvm/include/llvm/Analysis/EHPersonalities.h
+++ b/llvm/include/llvm/Analysis/EHPersonalities.h
@@ -11,7 +11,6 @@
 
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/TinyPtrVector.h"
-#include "llvm/Support/ErrorHandling.h"
 
 namespace llvm {
 class BasicBlock;

diff  --git a/llvm/include/llvm/Analysis/GlobalsModRef.h b/llvm/include/llvm/Analysis/GlobalsModRef.h
index 7daaa7f484ded..092224e4bbd1a 100644
--- a/llvm/include/llvm/Analysis/GlobalsModRef.h
+++ b/llvm/include/llvm/Analysis/GlobalsModRef.h
@@ -15,14 +15,13 @@
 
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/IR/Constants.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Module.h"
 #include "llvm/IR/ValueHandle.h"
 #include "llvm/Pass.h"
 #include <list>
 
 namespace llvm {
 class CallGraph;
+class Function;
 
 /// An alias analysis result set for globals.
 ///

diff  --git a/llvm/include/llvm/Analysis/IRSimilarityIdentifier.h b/llvm/include/llvm/Analysis/IRSimilarityIdentifier.h
index 90ab2833e4284..27fd6c2aa5519 100644
--- a/llvm/include/llvm/Analysis/IRSimilarityIdentifier.h
+++ b/llvm/include/llvm/Analysis/IRSimilarityIdentifier.h
@@ -51,12 +51,13 @@
 
 #include "llvm/IR/InstVisitor.h"
 #include "llvm/IR/Instructions.h"
-#include "llvm/IR/Module.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/Allocator.h"
 
 namespace llvm {
+class Module;
+
 namespace IRSimilarity {
 
 struct IRInstructionDataList;

diff  --git a/llvm/include/llvm/Analysis/IVDescriptors.h b/llvm/include/llvm/Analysis/IVDescriptors.h
index dec488a6f26db..f37ea0838618b 100644
--- a/llvm/include/llvm/Analysis/IVDescriptors.h
+++ b/llvm/include/llvm/Analysis/IVDescriptors.h
@@ -13,27 +13,23 @@
 #ifndef LLVM_ANALYSIS_IVDESCRIPTORS_H
 #define LLVM_ANALYSIS_IVDESCRIPTORS_H
 
-#include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/MapVector.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/IR/InstrTypes.h"
-#include "llvm/IR/Instruction.h"
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/Operator.h"
 #include "llvm/IR/ValueHandle.h"
-#include "llvm/Support/Casting.h"
 
 namespace llvm {
 
-class DemandedBits;
 class AssumptionCache;
+class DemandedBits;
+class DominatorTree;
+class Instruction;
 class Loop;
 class PredicatedScalarEvolution;
 class ScalarEvolution;
 class SCEV;
-class DominatorTree;
 
 /// These are the kinds of recurrences that we support.
 enum class RecurKind {

diff  --git a/llvm/include/llvm/Analysis/InlineCost.h b/llvm/include/llvm/Analysis/InlineCost.h
index f86ee5a148749..450d261888b58 100644
--- a/llvm/include/llvm/Analysis/InlineCost.h
+++ b/llvm/include/llvm/Analysis/InlineCost.h
@@ -14,7 +14,6 @@
 #define LLVM_ANALYSIS_INLINECOST_H
 
 #include "llvm/Analysis/AssumptionCache.h"
-#include "llvm/Analysis/CallGraphSCCPass.h"
 #include "llvm/Analysis/InlineModelFeatureMaps.h"
 #include "llvm/Analysis/OptimizationRemarkEmitter.h"
 #include <cassert>

diff  --git a/llvm/include/llvm/Analysis/InlineOrder.h b/llvm/include/llvm/Analysis/InlineOrder.h
index 84252bcf1b06d..96f10c62cf168 100644
--- a/llvm/include/llvm/Analysis/InlineOrder.h
+++ b/llvm/include/llvm/Analysis/InlineOrder.h
@@ -11,9 +11,6 @@
 
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Instruction.h"
-#include "llvm/IR/Instructions.h"
 #include <algorithm>
 #include <utility>
 

diff  --git a/llvm/include/llvm/Analysis/InstSimplifyFolder.h b/llvm/include/llvm/Analysis/InstSimplifyFolder.h
index 54ef1ddf6085b..86c8c164a76a1 100644
--- a/llvm/include/llvm/Analysis/InstSimplifyFolder.h
+++ b/llvm/include/llvm/Analysis/InstSimplifyFolder.h
@@ -22,12 +22,11 @@
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/Analysis/InstructionSimplify.h"
 #include "llvm/Analysis/TargetFolder.h"
-#include "llvm/IR/Constants.h"
 #include "llvm/IR/IRBuilderFolder.h"
-#include "llvm/IR/InstrTypes.h"
 #include "llvm/IR/Instruction.h"
 
 namespace llvm {
+class Constant;
 
 /// InstSimplifyFolder - Use InstructionSimplify to fold operations to existing
 /// values. Also applies target-specific constant folding when not using

diff  --git a/llvm/include/llvm/Analysis/InstructionSimplify.h b/llvm/include/llvm/Analysis/InstructionSimplify.h
index 8b49c115f1019..8f6ed3a6a1928 100644
--- a/llvm/include/llvm/Analysis/InstructionSimplify.h
+++ b/llvm/include/llvm/Analysis/InstructionSimplify.h
@@ -35,8 +35,6 @@
 #ifndef LLVM_ANALYSIS_INSTRUCTIONSIMPLIFY_H
 #define LLVM_ANALYSIS_INSTRUCTIONSIMPLIFY_H
 
-#include "llvm/IR/Instruction.h"
-#include "llvm/IR/Operator.h"
 #include "llvm/IR/PatternMatch.h"
 
 namespace llvm {
@@ -49,6 +47,7 @@ class CallBase;
 class DataLayout;
 class DominatorTree;
 class Function;
+class Instruction;
 struct LoopStandardAnalysisResults;
 class MDNode;
 class OptimizationRemarkEmitter;

diff  --git a/llvm/include/llvm/Analysis/IntervalIterator.h b/llvm/include/llvm/Analysis/IntervalIterator.h
index 8e2273618a66e..cbb7cac1c508c 100644
--- a/llvm/include/llvm/Analysis/IntervalIterator.h
+++ b/llvm/include/llvm/Analysis/IntervalIterator.h
@@ -36,8 +36,6 @@
 #include "llvm/Analysis/Interval.h"
 #include "llvm/Analysis/IntervalPartition.h"
 #include "llvm/IR/CFG.h"
-#include "llvm/IR/Function.h"
-#include "llvm/Support/ErrorHandling.h"
 #include <algorithm>
 #include <cassert>
 #include <iterator>
@@ -48,6 +46,7 @@
 namespace llvm {
 
 class BasicBlock;
+class Function;
 
 // getNodeHeader - Given a source graph node and the source graph, return the
 // BasicBlock that is the header node.  This is the opposite of

diff  --git a/llvm/include/llvm/Analysis/LazyCallGraph.h b/llvm/include/llvm/Analysis/LazyCallGraph.h
index c0404d37d04d9..da73a4835dc31 100644
--- a/llvm/include/llvm/Analysis/LazyCallGraph.h
+++ b/llvm/include/llvm/Analysis/LazyCallGraph.h
@@ -38,20 +38,14 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/Optional.h"
 #include "llvm/ADT/PointerIntPair.h"
-#include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SetVector.h"
-#include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/iterator.h"
 #include "llvm/ADT/iterator_range.h"
 #include "llvm/Analysis/TargetLibraryInfo.h"
-#include "llvm/IR/Constant.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/Function.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/Support/Allocator.h"
-#include "llvm/Support/Casting.h"
 #include "llvm/Support/raw_ostream.h"
 #include <cassert>
 #include <iterator>
@@ -60,8 +54,11 @@
 
 namespace llvm {
 
+class Constant;
+class Function;
 template <class GraphType> struct GraphTraits;
 class Module;
+class TargetLibraryInfo;
 class Value;
 
 /// A lazily constructed view of the call graph of a module.

diff  --git a/llvm/include/llvm/Analysis/LoopAnalysisManager.h b/llvm/include/llvm/Analysis/LoopAnalysisManager.h
index d07e6977fed1e..d22675a308aac 100644
--- a/llvm/include/llvm/Analysis/LoopAnalysisManager.h
+++ b/llvm/include/llvm/Analysis/LoopAnalysisManager.h
@@ -29,7 +29,6 @@
 #ifndef LLVM_ANALYSIS_LOOPANALYSISMANAGER_H
 #define LLVM_ANALYSIS_LOOPANALYSISMANAGER_H
 
-#include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/IR/PassManager.h"
 
 namespace llvm {

diff  --git a/llvm/include/llvm/Analysis/LoopCacheAnalysis.h b/llvm/include/llvm/Analysis/LoopCacheAnalysis.h
index 21882ebd00874..2ae0cf9191c98 100644
--- a/llvm/include/llvm/Analysis/LoopCacheAnalysis.h
+++ b/llvm/include/llvm/Analysis/LoopCacheAnalysis.h
@@ -15,7 +15,6 @@
 #define LLVM_ANALYSIS_LOOPCACHEANALYSIS_H
 
 #include "llvm/Analysis/LoopAnalysisManager.h"
-#include "llvm/IR/Instructions.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/Support/raw_ostream.h"
 
@@ -23,6 +22,7 @@ namespace llvm {
 
 class AAResults;
 class DependenceInfo;
+class Instruction;
 class LPMUpdater;
 class ScalarEvolution;
 class SCEV;

diff  --git a/llvm/include/llvm/Analysis/LoopInfo.h b/llvm/include/llvm/Analysis/LoopInfo.h
index a0ffdb07a7ec6..8bef178dda18b 100644
--- a/llvm/include/llvm/Analysis/LoopInfo.h
+++ b/llvm/include/llvm/Analysis/LoopInfo.h
@@ -44,7 +44,6 @@
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/IR/CFG.h"
-#include "llvm/IR/Instruction.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/Pass.h"
@@ -55,9 +54,10 @@
 namespace llvm {
 
 class DominatorTree;
+class InductionDescriptor;
+class Instruction;
 class LoopInfo;
 class Loop;
-class InductionDescriptor;
 class MDNode;
 class MemorySSAUpdater;
 class ScalarEvolution;

diff  --git a/llvm/include/llvm/Analysis/LoopInfoImpl.h b/llvm/include/llvm/Analysis/LoopInfoImpl.h
index b8b8330d0fe1d..05ac3e51b41ab 100644
--- a/llvm/include/llvm/Analysis/LoopInfoImpl.h
+++ b/llvm/include/llvm/Analysis/LoopInfoImpl.h
@@ -14,7 +14,6 @@
 #ifndef LLVM_ANALYSIS_LOOPINFOIMPL_H
 #define LLVM_ANALYSIS_LOOPINFOIMPL_H
 
-#include "llvm/ADT/DepthFirstIterator.h"
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SetOperations.h"

diff  --git a/llvm/include/llvm/Analysis/LoopUnrollAnalyzer.h b/llvm/include/llvm/Analysis/LoopUnrollAnalyzer.h
index 7cf8a081f9a24..817ddc074dc30 100644
--- a/llvm/include/llvm/Analysis/LoopUnrollAnalyzer.h
+++ b/llvm/include/llvm/Analysis/LoopUnrollAnalyzer.h
@@ -36,6 +36,8 @@
 // And finally:
 //   v = b[1]
 namespace llvm {
+class Instruction;
+
 class UnrolledInstAnalyzer : private InstVisitor<UnrolledInstAnalyzer, bool> {
   typedef InstVisitor<UnrolledInstAnalyzer, bool> Base;
   friend class InstVisitor<UnrolledInstAnalyzer, bool>;

diff  --git a/llvm/include/llvm/Analysis/MLModelRunner.h b/llvm/include/llvm/Analysis/MLModelRunner.h
index 669c02af0b3b3..a923af5f06d2d 100644
--- a/llvm/include/llvm/Analysis/MLModelRunner.h
+++ b/llvm/include/llvm/Analysis/MLModelRunner.h
@@ -10,10 +10,10 @@
 #ifndef LLVM_ANALYSIS_MLMODELRUNNER_H
 #define LLVM_ANALYSIS_MLMODELRUNNER_H
 
-#include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/PassManager.h"
 
 namespace llvm {
+class LLVMContext;
 
 /// MLModelRunner interface: abstraction of a mechanism for evaluating a
 /// tensorflow "saved model".

diff  --git a/llvm/include/llvm/Analysis/MemoryLocation.h b/llvm/include/llvm/Analysis/MemoryLocation.h
index 23e50f601e042..dfac49445d750 100644
--- a/llvm/include/llvm/Analysis/MemoryLocation.h
+++ b/llvm/include/llvm/Analysis/MemoryLocation.h
@@ -36,6 +36,7 @@ class AnyMemTransferInst;
 class AnyMemIntrinsic;
 class TargetLibraryInfo;
 class VAArgInst;
+class Value;
 
 // Represents the size of a MemoryLocation. Logically, it's an
 // Optional<uint63_t> that also carries a bit to represent whether the integer

diff  --git a/llvm/include/llvm/Analysis/MemorySSA.h b/llvm/include/llvm/Analysis/MemorySSA.h
index b41f5771bacdb..f0e96d678fdd5 100644
--- a/llvm/include/llvm/Analysis/MemorySSA.h
+++ b/llvm/include/llvm/Analysis/MemorySSA.h
@@ -76,27 +76,16 @@
 #include "llvm/ADT/GraphTraits.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/ilist.h"
 #include "llvm/ADT/ilist_node.h"
-#include "llvm/ADT/iterator.h"
 #include "llvm/ADT/iterator_range.h"
-#include "llvm/ADT/simple_ilist.h"
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/MemoryLocation.h"
 #include "llvm/Analysis/PHITransAddr.h"
-#include "llvm/IR/BasicBlock.h"
 #include "llvm/IR/DerivedUser.h"
 #include "llvm/IR/Dominators.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/Operator.h"
 #include "llvm/IR/Type.h"
-#include "llvm/IR/Use.h"
 #include "llvm/IR/User.h"
-#include "llvm/IR/Value.h"
-#include "llvm/IR/ValueHandle.h"
 #include "llvm/Pass.h"
-#include "llvm/Support/Casting.h"
-#include "llvm/Support/CommandLine.h"
 #include <algorithm>
 #include <cassert>
 #include <cstddef>
@@ -106,11 +95,15 @@
 
 namespace llvm {
 
+class BasicBlock;
 class Function;
 class Instruction;
+class LLVMContext;
 class MemoryAccess;
 class MemorySSAWalker;
-class LLVMContext;
+class Module;
+class Use;
+class Value;
 class raw_ostream;
 
 namespace MSSAHelpers {

diff  --git a/llvm/include/llvm/Analysis/ModuleDebugInfoPrinter.h b/llvm/include/llvm/Analysis/ModuleDebugInfoPrinter.h
index 99aa315319b81..fa91e4f653d04 100644
--- a/llvm/include/llvm/Analysis/ModuleDebugInfoPrinter.h
+++ b/llvm/include/llvm/Analysis/ModuleDebugInfoPrinter.h
@@ -11,9 +11,9 @@
 
 #include "llvm/IR/DebugInfo.h"
 #include "llvm/IR/PassManager.h"
-#include "llvm/Support/raw_ostream.h"
 
 namespace llvm {
+class raw_ostream;
 
 class ModuleDebugInfoPrinterPass
     : public PassInfoMixin<ModuleDebugInfoPrinterPass> {

diff  --git a/llvm/include/llvm/Analysis/MustExecute.h b/llvm/include/llvm/Analysis/MustExecute.h
index 18a0bfee57306..1e49942075554 100644
--- a/llvm/include/llvm/Analysis/MustExecute.h
+++ b/llvm/include/llvm/Analysis/MustExecute.h
@@ -28,7 +28,6 @@
 #include "llvm/Analysis/EHPersonalities.h"
 #include "llvm/Analysis/InstructionPrecedenceTracking.h"
 #include "llvm/IR/PassManager.h"
-#include "llvm/Support/raw_ostream.h"
 
 namespace llvm {
 
@@ -42,6 +41,7 @@ class Instruction;
 class Loop;
 class LoopInfo;
 class PostDominatorTree;
+class raw_ostream;
 
 /// Captures loop safety information.
 /// It keep information for loop blocks may throw exception or otherwise

diff  --git a/llvm/include/llvm/Analysis/OverflowInstAnalysis.h b/llvm/include/llvm/Analysis/OverflowInstAnalysis.h
index 7523fb9392cd9..761d20f17a8b8 100644
--- a/llvm/include/llvm/Analysis/OverflowInstAnalysis.h
+++ b/llvm/include/llvm/Analysis/OverflowInstAnalysis.h
@@ -14,11 +14,9 @@
 #ifndef LLVM_ANALYSIS_OVERFLOWINSTANALYSIS_H
 #define LLVM_ANALYSIS_OVERFLOWINSTANALYSIS_H
 
-#include "llvm/IR/InstrTypes.h"
-
 namespace llvm {
-class Value;
 class Use;
+class Value;
 
 /// Match one of the patterns up to the select/logic op:
 ///   %Op0 = icmp ne i4 %X, 0

diff  --git a/llvm/include/llvm/Analysis/PtrUseVisitor.h b/llvm/include/llvm/Analysis/PtrUseVisitor.h
index 78e9251da6272..2482ab1998af0 100644
--- a/llvm/include/llvm/Analysis/PtrUseVisitor.h
+++ b/llvm/include/llvm/Analysis/PtrUseVisitor.h
@@ -26,22 +26,16 @@
 #include "llvm/ADT/PointerIntPair.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/IR/DataLayout.h"
 #include "llvm/IR/DerivedTypes.h"
 #include "llvm/IR/InstVisitor.h"
-#include "llvm/IR/Instruction.h"
-#include "llvm/IR/Instructions.h"
 #include "llvm/IR/IntrinsicInst.h"
-#include "llvm/IR/Intrinsics.h"
-#include "llvm/IR/Type.h"
-#include "llvm/IR/Use.h"
-#include "llvm/IR/User.h"
-#include "llvm/Support/Casting.h"
 #include <algorithm>
 #include <cassert>
 #include <type_traits>
 
 namespace llvm {
+class DataLayout;
+class Use;
 
 namespace detail {
 

diff  --git a/llvm/include/llvm/Analysis/RegionInfo.h b/llvm/include/llvm/Analysis/RegionInfo.h
index f93081d6f51d0..9a32df3882d69 100644
--- a/llvm/include/llvm/Analysis/RegionInfo.h
+++ b/llvm/include/llvm/Analysis/RegionInfo.h
@@ -42,11 +42,9 @@
 #include "llvm/ADT/PointerIntPair.h"
 #include "llvm/ADT/iterator_range.h"
 #include "llvm/Config/llvm-config.h"
-#include "llvm/IR/BasicBlock.h"
 #include "llvm/IR/Dominators.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/Pass.h"
-#include "llvm/Support/raw_ostream.h"
 #include <algorithm>
 #include <cassert>
 #include <map>
@@ -58,6 +56,7 @@
 
 namespace llvm {
 
+class BasicBlock;
 class DominanceFrontier;
 class Loop;
 class LoopInfo;
@@ -67,6 +66,7 @@ template <class RegionTr> class RegionBase;
 class RegionInfo;
 template <class RegionTr> class RegionInfoBase;
 class RegionNode;
+class raw_ostream;
 
 // Class to be specialized for 
diff erent users of RegionInfo
 // (i.e. BasicBlocks or MachineBasicBlocks). This is only to avoid needing to

diff  --git a/llvm/include/llvm/Analysis/RegionInfoImpl.h b/llvm/include/llvm/Analysis/RegionInfoImpl.h
index b694effb22293..561702db37904 100644
--- a/llvm/include/llvm/Analysis/RegionInfoImpl.h
+++ b/llvm/include/llvm/Analysis/RegionInfoImpl.h
@@ -15,8 +15,6 @@
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/iterator_range.h"
-#include "llvm/Analysis/DominanceFrontier.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/PostDominators.h"
 #include "llvm/Analysis/RegionInfo.h"
@@ -24,7 +22,6 @@
 #include "llvm/Config/llvm-config.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/raw_ostream.h"
 #include <algorithm>
 #include <cassert>
 #include <iterator>
@@ -37,6 +34,7 @@
 #define DEBUG_TYPE "region"
 
 namespace llvm {
+class raw_ostream;
 
 //===----------------------------------------------------------------------===//
 /// RegionBase Implementation

diff  --git a/llvm/include/llvm/Analysis/RegionIterator.h b/llvm/include/llvm/Analysis/RegionIterator.h
index fecb28725dcc9..54b8ba1933ca6 100644
--- a/llvm/include/llvm/Analysis/RegionIterator.h
+++ b/llvm/include/llvm/Analysis/RegionIterator.h
@@ -14,8 +14,6 @@
 #include "llvm/ADT/DepthFirstIterator.h"
 #include "llvm/ADT/GraphTraits.h"
 #include "llvm/ADT/PointerIntPair.h"
-#include "llvm/Analysis/RegionInfo.h"
-#include "llvm/IR/CFG.h"
 #include <cassert>
 #include <iterator>
 #include <type_traits>
@@ -23,6 +21,7 @@
 namespace llvm {
 
 class BasicBlock;
+class RegionInfo;
 
 //===----------------------------------------------------------------------===//
 /// Hierarchical RegionNode successor iterator.

diff  --git a/llvm/include/llvm/Analysis/RegionPass.h b/llvm/include/llvm/Analysis/RegionPass.h
index 5c7fa5f56693a..dd5e6a1a3b249 100644
--- a/llvm/include/llvm/Analysis/RegionPass.h
+++ b/llvm/include/llvm/Analysis/RegionPass.h
@@ -15,7 +15,6 @@
 #ifndef LLVM_ANALYSIS_REGIONPASS_H
 #define LLVM_ANALYSIS_REGIONPASS_H
 
-#include "llvm/Analysis/RegionInfo.h"
 #include "llvm/IR/LegacyPassManagers.h"
 #include "llvm/Pass.h"
 #include <deque>
@@ -23,6 +22,8 @@
 namespace llvm {
 class Function;
 class RGPassManager;
+class Region;
+class RegionInfo;
 
 //===----------------------------------------------------------------------===//
 /// A pass that runs on each Region in a function.

diff  --git a/llvm/include/llvm/Analysis/ScalarEvolution.h b/llvm/include/llvm/Analysis/ScalarEvolution.h
index b16aa70177190..c39de9d72cf49 100644
--- a/llvm/include/llvm/Analysis/ScalarEvolution.h
+++ b/llvm/include/llvm/Analysis/ScalarEvolution.h
@@ -31,7 +31,6 @@
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/IR/ConstantRange.h"
-#include "llvm/IR/Function.h"
 #include "llvm/IR/InstrTypes.h"
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/Operator.h"
@@ -39,9 +38,6 @@
 #include "llvm/IR/ValueHandle.h"
 #include "llvm/IR/ValueMap.h"
 #include "llvm/Pass.h"
-#include "llvm/Support/Allocator.h"
-#include "llvm/Support/Casting.h"
-#include "llvm/Support/Compiler.h"
 #include <algorithm>
 #include <cassert>
 #include <cstdint>
@@ -56,6 +52,7 @@ class Constant;
 class ConstantInt;
 class DataLayout;
 class DominatorTree;
+class Function;
 class GEPOperator;
 class Instruction;
 class LLVMContext;

diff  --git a/llvm/include/llvm/Analysis/ScalarEvolutionAliasAnalysis.h b/llvm/include/llvm/Analysis/ScalarEvolutionAliasAnalysis.h
index ebd427354cee9..356a4e0e8bd5b 100644
--- a/llvm/include/llvm/Analysis/ScalarEvolutionAliasAnalysis.h
+++ b/llvm/include/llvm/Analysis/ScalarEvolutionAliasAnalysis.h
@@ -15,12 +15,12 @@
 
 #include "llvm/Analysis/AliasAnalysis.h"
 #include "llvm/Analysis/ScalarEvolutionExpressions.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Module.h"
 #include "llvm/Pass.h"
 
 namespace llvm {
 
+class Function;
+
 /// A simple alias analysis implementation that uses ScalarEvolution to answer
 /// queries.
 class SCEVAAResult : public AAResultBase<SCEVAAResult> {

diff  --git a/llvm/include/llvm/Analysis/ScalarEvolutionExpressions.h b/llvm/include/llvm/Analysis/ScalarEvolutionExpressions.h
index cd8e5fab6766f..ee305c895e439 100644
--- a/llvm/include/llvm/Analysis/ScalarEvolutionExpressions.h
+++ b/llvm/include/llvm/Analysis/ScalarEvolutionExpressions.h
@@ -14,13 +14,10 @@
 #define LLVM_ANALYSIS_SCALAREVOLUTIONEXPRESSIONS_H
 
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/FoldingSet.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/iterator_range.h"
 #include "llvm/Analysis/ScalarEvolution.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/Value.h"
 #include "llvm/IR/ValueHandle.h"
 #include "llvm/Support/Casting.h"
 #include "llvm/Support/ErrorHandling.h"
@@ -31,9 +28,11 @@ namespace llvm {
 
 class APInt;
 class Constant;
+class ConstantInt;
 class ConstantRange;
 class Loop;
 class Type;
+class Value;
 
 enum SCEVTypes : unsigned short {
   // These should be ordered in terms of increasing complexity to make the

diff  --git a/llvm/include/llvm/Analysis/StackLifetime.h b/llvm/include/llvm/Analysis/StackLifetime.h
index 239aec4e258bc..f4080e671da3c 100644
--- a/llvm/include/llvm/Analysis/StackLifetime.h
+++ b/llvm/include/llvm/Analysis/StackLifetime.h
@@ -14,7 +14,6 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringExtras.h"
-#include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/Support/raw_ostream.h"
 #include <cassert>
@@ -26,6 +25,7 @@ class AllocaInst;
 class BasicBlock;
 class Function;
 class Instruction;
+class IntrinsicInst;
 
 /// Compute live ranges of allocas.
 /// Live ranges are represented as sets of "interesting" instructions, which are

diff  --git a/llvm/include/llvm/Analysis/SyncDependenceAnalysis.h b/llvm/include/llvm/Analysis/SyncDependenceAnalysis.h
index cfc1e20255d18..db8c028f3c417 100644
--- a/llvm/include/llvm/Analysis/SyncDependenceAnalysis.h
+++ b/llvm/include/llvm/Analysis/SyncDependenceAnalysis.h
@@ -16,10 +16,8 @@
 #ifndef LLVM_ANALYSIS_SYNCDEPENDENCEANALYSIS_H
 #define LLVM_ANALYSIS_SYNCDEPENDENCEANALYSIS_H
 
-#include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/Analysis/LoopInfo.h"
 #include <map>
 #include <memory>
 #include <unordered_map>
@@ -28,6 +26,8 @@ namespace llvm {
 
 class BasicBlock;
 class DominatorTree;
+class Instruction;
+class LoopInfo;
 class PostDominatorTree;
 
 using ConstBlockSet = SmallPtrSet<const BasicBlock *, 4>;

diff  --git a/llvm/include/llvm/Analysis/TargetFolder.h b/llvm/include/llvm/Analysis/TargetFolder.h
index 1df0530e40e61..1fd16add07d1b 100644
--- a/llvm/include/llvm/Analysis/TargetFolder.h
+++ b/llvm/include/llvm/Analysis/TargetFolder.h
@@ -20,13 +20,13 @@
 
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/Analysis/ConstantFolding.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/InstrTypes.h"
 #include "llvm/IR/IRBuilderFolder.h"
 
 namespace llvm {
 
+class Constant;
 class DataLayout;
+class Type;
 
 /// TargetFolder - Create constants with target dependent folding.
 class TargetFolder final : public IRBuilderFolder {

diff  --git a/llvm/include/llvm/Analysis/TargetLibraryInfo.h b/llvm/include/llvm/Analysis/TargetLibraryInfo.h
index 17d1e3f770c14..98d7ad8f93088 100644
--- a/llvm/include/llvm/Analysis/TargetLibraryInfo.h
+++ b/llvm/include/llvm/Analysis/TargetLibraryInfo.h
@@ -12,14 +12,15 @@
 #include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/Optional.h"
-#include "llvm/IR/Function.h"
 #include "llvm/IR/InstrTypes.h"
-#include "llvm/IR/Module.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/Pass.h"
 
 namespace llvm {
+
 template <typename T> class ArrayRef;
+class Function;
+class Module;
 class Triple;
 
 /// Describes a possible vectorization of a function.
@@ -49,7 +50,7 @@ class TargetLibraryInfoImpl {
   friend class TargetLibraryInfo;
 
   unsigned char AvailableArray[(NumLibFuncs+3)/4];
-  llvm::DenseMap<unsigned, std::string> CustomNames;
+  DenseMap<unsigned, std::string> CustomNames;
   static StringLiteral const StandardNames[NumLibFuncs];
   bool ShouldExtI32Param, ShouldExtI32Return, ShouldSignExtI32Param;
   unsigned SizeOfInt;

diff  --git a/llvm/include/llvm/Analysis/TargetTransformInfo.h b/llvm/include/llvm/Analysis/TargetTransformInfo.h
index 7412e050322e3..53df4d6bd54a2 100644
--- a/llvm/include/llvm/Analysis/TargetTransformInfo.h
+++ b/llvm/include/llvm/Analysis/TargetTransformInfo.h
@@ -27,7 +27,6 @@
 #include "llvm/Pass.h"
 #include "llvm/Support/AtomicOrdering.h"
 #include "llvm/Support/BranchProbability.h"
-#include "llvm/Support/DataTypes.h"
 #include "llvm/Support/InstructionCost.h"
 #include <functional>
 #include <utility>

diff  --git a/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h b/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
index a32744f8d58bc..aebe61977bd71 100644
--- a/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
+++ b/llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
@@ -18,18 +18,18 @@
 #include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/Analysis/VectorUtils.h"
 #include "llvm/IR/DataLayout.h"
-#include "llvm/IR/Function.h"
 #include "llvm/IR/GetElementPtrTypeIterator.h"
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/Operator.h"
 #include "llvm/IR/PatternMatch.h"
-#include "llvm/IR/Type.h"
 #include <utility>
 
 using namespace llvm::PatternMatch;
 
 namespace llvm {
 
+class Function;
+
 /// Base class for use as a mix-in that aids implementing
 /// a TargetTransformInfo-compatible class.
 class TargetTransformInfoImplBase {

diff  --git a/llvm/include/llvm/Analysis/ValueLattice.h b/llvm/include/llvm/Analysis/ValueLattice.h
index 1b32fca506976..1b3b02c084419 100644
--- a/llvm/include/llvm/Analysis/ValueLattice.h
+++ b/llvm/include/llvm/Analysis/ValueLattice.h
@@ -10,7 +10,6 @@
 #define LLVM_ANALYSIS_VALUELATTICE_H
 
 #include "llvm/IR/ConstantRange.h"
-#include "llvm/IR/Constants.h"
 #include "llvm/IR/Instructions.h"
 //
 //===----------------------------------------------------------------------===//
@@ -19,6 +18,8 @@
 
 namespace llvm {
 
+class Constant;
+
 /// This class represents lattice values for constants.
 ///
 /// FIXME: This is basically just for bringup, this can be made a lot more rich

diff  --git a/llvm/lib/Analysis/DependenceGraphBuilder.cpp b/llvm/lib/Analysis/DependenceGraphBuilder.cpp
index 6b90db4bafe13..7ee2adf49ebb4 100644
--- a/llvm/lib/Analysis/DependenceGraphBuilder.cpp
+++ b/llvm/lib/Analysis/DependenceGraphBuilder.cpp
@@ -12,6 +12,7 @@
 #include "llvm/Analysis/DependenceGraphBuilder.h"
 #include "llvm/ADT/DepthFirstIterator.h"
 #include "llvm/ADT/EnumeratedArray.h"
+#include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/SCCIterator.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/DDG.h"

diff  --git a/llvm/lib/Analysis/LegacyDivergenceAnalysis.cpp b/llvm/lib/Analysis/LegacyDivergenceAnalysis.cpp
index 031bf3bae51dd..491d44335f22f 100644
--- a/llvm/lib/Analysis/LegacyDivergenceAnalysis.cpp
+++ b/llvm/lib/Analysis/LegacyDivergenceAnalysis.cpp
@@ -68,6 +68,7 @@
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/Analysis/CFG.h"
 #include "llvm/Analysis/DivergenceAnalysis.h"
+#include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/Passes.h"
 #include "llvm/Analysis/PostDominators.h"
 #include "llvm/Analysis/TargetTransformInfo.h"

diff  --git a/llvm/lib/Analysis/MemorySSA.cpp b/llvm/lib/Analysis/MemorySSA.cpp
index 57f431ec21f56..1778be4418130 100644
--- a/llvm/lib/Analysis/MemorySSA.cpp
+++ b/llvm/lib/Analysis/MemorySSA.cpp
@@ -38,6 +38,7 @@
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/Intrinsics.h"
 #include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Operator.h"
 #include "llvm/IR/PassManager.h"
 #include "llvm/IR/Use.h"
 #include "llvm/InitializePasses.h"

diff  --git a/llvm/lib/Analysis/RegionInfo.cpp b/llvm/lib/Analysis/RegionInfo.cpp
index 3ba0bb9eaf2cf..9be23a374eca5 100644
--- a/llvm/lib/Analysis/RegionInfo.cpp
+++ b/llvm/lib/Analysis/RegionInfo.cpp
@@ -10,6 +10,7 @@
 
 #include "llvm/Analysis/RegionInfo.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Analysis/DominanceFrontier.h"
 #include "llvm/InitializePasses.h"
 #ifndef NDEBUG
 #include "llvm/Analysis/RegionPrinter.h"

diff  --git a/llvm/lib/Analysis/RegionPass.cpp b/llvm/lib/Analysis/RegionPass.cpp
index 10c8569096c6b..182d91856ec6d 100644
--- a/llvm/lib/Analysis/RegionPass.cpp
+++ b/llvm/lib/Analysis/RegionPass.cpp
@@ -12,7 +12,9 @@
 // Most of this code has been COPIED from LoopPass.cpp
 //
 //===----------------------------------------------------------------------===//
+
 #include "llvm/Analysis/RegionPass.h"
+#include "llvm/Analysis/RegionInfo.h"
 #include "llvm/IR/OptBisect.h"
 #include "llvm/IR/PassTimingInfo.h"
 #include "llvm/IR/PrintPasses.h"

diff  --git a/llvm/lib/Analysis/SyncDependenceAnalysis.cpp b/llvm/lib/Analysis/SyncDependenceAnalysis.cpp
index ff833b55bbce0..62581b12bb149 100644
--- a/llvm/lib/Analysis/SyncDependenceAnalysis.cpp
+++ b/llvm/lib/Analysis/SyncDependenceAnalysis.cpp
@@ -116,9 +116,11 @@
 //   around from the latch.
 //
 //===----------------------------------------------------------------------===//
+
 #include "llvm/Analysis/SyncDependenceAnalysis.h"
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/SmallPtrSet.h"
+#include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/PostDominators.h"
 #include "llvm/IR/BasicBlock.h"
 #include "llvm/IR/CFG.h"

diff  --git a/llvm/lib/Transforms/Utils/LCSSA.cpp b/llvm/lib/Transforms/Utils/LCSSA.cpp
index 72b864dc3e484..111e0516f67f1 100644
--- a/llvm/lib/Transforms/Utils/LCSSA.cpp
+++ b/llvm/lib/Transforms/Utils/LCSSA.cpp
@@ -33,6 +33,7 @@
 #include "llvm/Analysis/BasicAliasAnalysis.h"
 #include "llvm/Analysis/BranchProbabilityInfo.h"
 #include "llvm/Analysis/GlobalsModRef.h"
+#include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/LoopPass.h"
 #include "llvm/Analysis/MemorySSA.h"
 #include "llvm/Analysis/ScalarEvolution.h"

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