[Transforms] Remove unused includes (NFC) (#141357)

These are identified by misc-include-cleaner.  I've filtered out those
that break builds.  Also, I'm staying away from llvm-config.h,
config.h, and Compiler.h, which likely cause platform- or
compiler-specific build failures.

Author: kazutakahirata

llvm/lib/Transforms/IPO/FunctionImport.cpp

@@ -19,7 +19,6 @@
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Bitcode/BitcodeReader.h"
 #include "llvm/IR/AutoUpgrade.h"
-#include "llvm/IR/Constants.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/GlobalAlias.h"
 #include "llvm/IR/GlobalObject.h"

llvm/lib/Transforms/IPO/Internalize.cpp

@@ -19,7 +19,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Transforms/IPO/Internalize.h"
-#include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/ADT/StringSet.h"
 #include "llvm/Analysis/CallGraph.h"

llvm/lib/Transforms/IPO/MergeFunctions.cpp

@@ -94,7 +94,6 @@
 #include "llvm/ADT/Statistic.h"
 #include "llvm/IR/Argument.h"
 #include "llvm/IR/BasicBlock.h"
-#include "llvm/IR/Constants.h"
 #include "llvm/IR/DebugInfoMetadata.h"
 #include "llvm/IR/DebugLoc.h"
 #include "llvm/IR/DerivedTypes.h"

llvm/lib/Transforms/IPO/OpenMPOpt.cpp

@@ -37,7 +37,6 @@
 #include "llvm/Frontend/OpenMP/OMPIRBuilder.h"
 #include "llvm/IR/Assumptions.h"
 #include "llvm/IR/BasicBlock.h"
-#include "llvm/IR/CallingConv.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/DiagnosticInfo.h"
 #include "llvm/IR/Dominators.h"

llvm/lib/Transforms/Instrumentation/PGOCtxProfFlattening.cpp

@@ -36,8 +36,6 @@
 #include "llvm/Transforms/Instrumentation/PGOInstrumentation.h"
 #include "llvm/Transforms/Scalar/DCE.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
-#include <deque>
-#include <functional>
 
 using namespace llvm;
 

llvm/lib/Transforms/Instrumentation/TypeSanitizer.cpp

@@ -13,7 +13,6 @@
 
 #include "llvm/Transforms/Instrumentation/TypeSanitizer.h"
 #include "llvm/ADT/SetVector.h"
-#include "llvm/ADT/SmallSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/ADT/StringExtras.h"
@@ -33,11 +32,8 @@
 #include "llvm/IR/Type.h"
 #include "llvm/ProfileData/InstrProf.h"
 #include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
 #include "llvm/Support/MD5.h"
-#include "llvm/Support/MathExtras.h"
 #include "llvm/Support/Regex.h"
-#include "llvm/Support/raw_ostream.h"
 #include "llvm/Transforms/Utils/BasicBlockUtils.h"
 #include "llvm/Transforms/Utils/Local.h"
 #include "llvm/Transforms/Utils/ModuleUtils.h"

llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp

@@ -56,7 +56,6 @@
 #include "llvm/ADT/APInt.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/DenseSet.h"
-#include "llvm/ADT/Hashing.h"
 #include "llvm/ADT/PointerIntPair.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SetVector.h"

llvm/lib/Transforms/Utils/IRNormalizer.cpp

@@ -23,13 +23,7 @@
 #include "llvm/IR/Function.h"
 #include "llvm/IR/IRBuilder.h"
 #include "llvm/IR/InstIterator.h"
-#include "llvm/IR/Module.h"
-#include "llvm/InitializePasses.h"
 #include "llvm/Pass.h"
-#include "llvm/PassRegistry.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Transforms/Utils.h"
-#include <algorithm>
 #include <stack>
 
 #define DEBUG_TYPE "normalize"

llvm/lib/Transforms/Utils/LoopUnroll.cpp

@@ -60,11 +60,9 @@
 #include "llvm/Transforms/Utils/Local.h"
 #include "llvm/Transforms/Utils/LoopSimplify.h"
 #include "llvm/Transforms/Utils/LoopUtils.h"
-#include "llvm/Transforms/Utils/ScalarEvolutionExpander.h"
 #include "llvm/Transforms/Utils/SimplifyIndVar.h"
 #include "llvm/Transforms/Utils/UnrollLoop.h"
 #include "llvm/Transforms/Utils/ValueMapper.h"
-#include <algorithm>
 #include <assert.h>
 #include <numeric>
 #include <type_traits>

llvm/lib/Transforms/Utils/LowerVectorIntrinsics.cpp

@@ -8,8 +8,6 @@
 
 #include "llvm/Transforms/Utils/LowerVectorIntrinsics.h"
 #include "llvm/IR/IRBuilder.h"
-#include "llvm/IR/IntrinsicInst.h"
-#include "llvm/Support/Debug.h"
 
 #define DEBUG_TYPE "lower-vector-intrinsics"